text: var JSMpeg={Player:null,VideoElement:null,BitBuffer:null,Source:{},Demuxer:{},Decoder:{},Renderer:{},AudioOutput:{},Now:function(){return window.performance?window.performance.now()/1e3:Date.now()/1e3},CreateVideoElements:function(){var elements=document.querySelectorAll(".jsmpeg");for(var i=0;i<elements.length;i++){new JSMpeg.VideoElement(elements[i])}},Fill:function(array,value){if(array.fill){array.fill(value)}else{for(var i=0;i<array.length;i++){array[i]=value}}}};if(document.readyState==="complete"){JSMpeg.CreateVideoElements()}else{document.addEventListener("DOMContentLoaded",JSMpeg.CreateVideoElements)}JSMpeg.VideoElement=function(){"use strict";var VideoElement=function(element){var url=element.dataset.url;if(!url){throw"VideoElement has no `data-url` attribute"}var addStyles=function(element,styles){for(var name in styles){element.style[name]=styles[name]}};this.container=element;addStyles(this.container,{display:"inline-block",position:"relative",minWidth:"80px",minHeight:"80px"});this.canvas=document.createElement("canvas");this.canvas.width=960;this.canvas.height=540;addStyles(this.canvas,{display:"block",width:"100%"});this.container.appendChild(this.canvas);this.playButton=document.createElement("div");this.playButton.innerHTML=VideoElement.PLAY_BUTTON;addStyles(this.playButton,{zIndex:2,position:"absolute",top:"0",bottom:"0",left:"0",right:"0",maxWidth:"75px",maxHeight:"75px",margin:"auto",opacity:"0.7",cursor:"pointer"});this.container.appendChild(this.playButton);var options={canvas:this.canvas};for(var option in element.dataset){try{options[option]=JSON.parse(element.dataset[option])}catch(err){options[option]=element.dataset[option]}}this.player=new JSMpeg.Player(url,options);element.playerInstance=this.player;if(options.poster&&!options.autoplay&&!this.player.options.streaming){options.decodeFirstFrame=false;this.poster=new Image;this.poster.src=options.poster;this.poster.addEventListener("load",this.posterLoaded);addStyles(this.poster,{display:"block",zIndex:1,position:"absolute",top:0,left:0,bottom:0,right:0});this.container.appendChild(this.poster)}if(!this.player.options.streaming){this.container.addEventListener("click",this.onClick.bind(this))}if(options.autoplay||this.player.options.streaming){this.playButton.style.display="none"}if(this.player.audioOut&&!this.player.audioOut.unlocked){var unlockAudioElement=this.container;if(options.autoplay||this.player.options.streaming){this.unmuteButton=document.createElement("div");this.unmuteButton.innerHTML=VideoElement.UNMUTE_BUTTON;addStyles(this.unmuteButton,{zIndex:2,position:"absolute",bottom:"10px",right:"20px",width:"75px",height:"75px",margin:"auto",opacity:"0.7",cursor:"pointer"});this.container.appendChild(this.unmuteButton);unlockAudioElement=this.unmuteButton}this.unlockAudioBound=this.onUnlockAudio.bind(this,unlockAudioElement);unlockAudioElement.addEventListener("touchstart",this.unlockAudioBound,false);unlockAudioElement.addEventListener("click",this.unlockAudioBound,true)}};VideoElement.prototype.onUnlockAudio=function(element,ev){if(this.unmuteButton){ev.preventDefault();ev.stopPropagation()}this.player.audioOut.unlock(function(){if(this.unmuteButton){this.unmuteButton.style.display="none"}element.removeEventListener("touchstart",this.unlockAudioBound);element.removeEventListener("click",this.unlockAudioBound)}.bind(this))};VideoElement.prototype.onClick=function(ev){if(this.player.isPlaying){this.player.pause();this.playButton.style.display="block"}else{this.player.play();this.playButton.style.display="none";if(this.poster){this.poster.style.display="none"}}};VideoElement.PLAY_BUTTON='<svg style="max-width: 75px; max-height: 75px;" '+'viewBox="0 0 200 200" alt="Play video">'+'<circle cx="100" cy="100" r="90" fill="none" '+'stroke-width="15" stroke="#fff"/>'+'<polygon points="70, 55 70, 145 145, 100" fill="#fff"/>'+"</svg>";VideoElement.UNMUTE_BUTTON='<svg style="max-width: 75px; max-height: 75px;" viewBox="0 0 75 75">'+'<polygon class="audio-speaker" stroke="none" fill="#fff" '+'points="39,13 22,28 6,28 6,47 21,47 39,62 39,13"/>'+'<g stroke="#fff" stroke-width="5">'+'<path d="M 49,50 69,26"/>'+'<path d="M 69,50 49,26"/>'+"</g>"+"</svg>";return VideoElement}();JSMpeg.Player=function(){"use strict";var Player=function(url,options){this.options=options||{};if(options.source){this.source=new options.source(url,options);options.streaming=!!this.source.streaming}else if(url.match(/^wss?:\/\//)){this.source=new JSMpeg.Source.WebSocket(url,options);options.streaming=true}else if(options.progressive!==false){this.source=new JSMpeg.Source.AjaxProgressive(url,options);options.streaming=false}else{this.source=new JSMpeg.Source.Ajax(url,options);options.streaming=false}this.maxAudioLag=options.maxAudioLag||.25;this.loop=options.loop!==false;this.autoplay=!!options.autoplay||options.streaming;this.demuxer=new JSMpeg.Demuxer.TS(options);this.source.connect(this.demuxer);if(options.video!==false){this.video=new JSMpeg.Decoder.MPEG1Video(options);this.renderer=!options.disableGl&&JSMpeg.Renderer.WebGL.IsSupported()?new JSMpeg.Renderer.WebGL(options):new JSMpeg.Renderer.Canvas2D(options);this.demuxer.connect(JSMpeg.Demuxer.TS.STREAM.VIDEO_1,this.video);this.video.connect(this.renderer)}if(options.audio!==false&&JSMpeg.AudioOutput.WebAudio.IsSupported()){this.audio=new JSMpeg.Decoder.MP2Audio(options);this.audioOut=new JSMpeg.AudioOutput.WebAudio(options);this.demuxer.connect(JSMpeg.Demuxer.TS.STREAM.AUDIO_1,this.audio);this.audio.connect(this.audioOut)}Object.defineProperty(this,"currentTime",{get:this.getCurrentTime,set:this.setCurrentTime});Object.defineProperty(this,"volume",{get:this.getVolume,set:this.setVolume});this.unpauseOnShow=false;if(options.pauseWhenHidden!==false){document.addEventListener("visibilitychange",this.showHide.bind(this))}this.source.start();if(this.autoplay){this.play()}};Player.prototype.showHide=function(ev){if(document.visibilityState==="hidden"){this.unpauseOnShow=this.wantsToPlay;this.pause()}else if(this.unpauseOnShow){this.play()}};Player.prototype.play=function(ev){this.animationId=requestAnimationFrame(this.update.bind(this));this.wantsToPlay=true};Player.prototype.pause=function(ev){cancelAnimationFrame(this.animationId);this.wantsToPlay=false;this.isPlaying=false;if(this.audio&&this.audio.canPlay){this.audioOut.stop();this.seek(this.currentTime)}};Player.prototype.getVolume=function(){return this.audioOut?this.audioOut.volume:0};Player.prototype.setVolume=function(volume){if(this.audioOut){this.audioOut.volume=volume}};Player.prototype.stop=function(ev){this.pause();this.seek(0);if(this.video&&this.options.decodeFirstFrame!==false){this.video.decode()}};Player.prototype.destroy=function(){this.pause();this.source.destroy();this.renderer.destroy();this.audioOut.destroy()};Player.prototype.seek=function(time){var startOffset=this.audio&&this.audio.canPlay?this.audio.startTime:this.video.startTime;if(this.video){this.video.seek(time+startOffset)}if(this.audio){this.audio.seek(time+startOffset)}this.startTime=JSMpeg.Now()-time};Player.prototype.getCurrentTime=function(){return this.audio&&this.audio.canPlay?this.audio.currentTime-this.audio.startTime:this.video.currentTime-this.video.startTime};Player.prototype.setCurrentTime=function(time){this.seek(time)};Player.prototype.update=function(){this.animationId=requestAnimationFrame(this.update.bind(this));if(!this.source.established){if(this.renderer){this.renderer.renderProgress(this.source.progress)}return}if(!this.isPlaying){this.isPlaying=true;this.startTime=JSMpeg.Now()-this.currentTime}if(this.options.streaming){this.updateForStreaming()}else{this.updateForStaticFile()}};Player.prototype.updateForStreaming=function(){if(this.video){this.video.decode()}if(this.audio){var decoded=false;do{if(this.audioOut.enqueuedTime>this.maxAudioLag){this.audioOut.resetEnqueuedTime();this.audioOut.enabled=false}decoded=this.audio.decode()}while(decoded);this.audioOut.enabled=true}};Player.prototype.updateForStaticFile=function(){var notEnoughData=false,headroom=0;if(this.audio&&this.audio.canPlay){while(!notEnoughData&&this.audio.decodedTime-this.audio.currentTime<.25){notEnoughData=!this.audio.decode()}if(this.video&&this.video.currentTime<this.audio.currentTime){notEnoughData=!this.video.decode()}headroom=this.demuxer.currentTime-this.audio.currentTime}else if(this.video){var targetTime=JSMpeg.Now()-this.startTime+this.video.startTime,lateTime=targetTime-this.video.currentTime,frameTime=1/this.video.frameRate;if(this.video&&lateTime>0){if(lateTime>frameTime*2){this.startTime+=lateTime}notEnoughData=!this.video.decode()}headroom=this.demuxer.currentTime-targetTime}this.source.resume(headroom);if(notEnoughData&&this.source.completed){if(this.loop){this.seek(0)}else{this.pause()}}};return Player}();JSMpeg.BitBuffer=function(){"use strict";var BitBuffer=function(bufferOrLength,mode){if(typeof bufferOrLength==="object"){this.bytes=bufferOrLength instanceof Uint8Array?bufferOrLength:new Uint8Array(bufferOrLength);this.byteLength=this.bytes.length}else{this.bytes=new Uint8Array(bufferOrLength||1024*1024);this.byteLength=0}this.mode=mode||BitBuffer.MODE.EXPAND;this.index=0};BitBuffer.prototype.resize=function(size){var newBytes=new Uint8Array(size);if(this.byteLength!==0){this.byteLength=Math.min(this.byteLength,size);newBytes.set(this.bytes,0,this.byteLength)}this.bytes=newBytes;this.index=Math.min(this.index,this.byteLength<<3)};BitBuffer.prototype.evict=function(sizeNeeded){var bytePos=this.index>>3,available=this.bytes.length-this.byteLength;if(this.index===this.byteLength<<3||sizeNeeded>available+bytePos){this.byteLength=0;this.index=0;return}else if(bytePos===0){return}if(this.bytes.copyWithin){this.bytes.copyWithin(0,bytePos,this.byteLength)}else{this.bytes.set(this.bytes.subarray(bytePos,this.byteLength))}this.byteLength=this.byteLength-bytePos;this.index-=bytePos<<3;return};BitBuffer.prototype.write=function(buffers){var isArrayOfBuffers=typeof buffers[0]==="object",totalLength=0,available=this.bytes.length-this.byteLength;if(isArrayOfBuffers){var totalLength=0;for(var i=0;i<buffers.length;i++){totalLength+=buffers[i].byteLength}}else{totalLength=buffers.byteLength}if(totalLength>available){if(this.mode===BitBuffer.MODE.EXPAND){var newSize=Math.max(this.bytes.length*2,totalLength-available);this.resize(newSize)}else{this.evict(totalLength)}}if(isArrayOfBuffers){for(var i=0;i<buffers.length;i++){this.appendSingleBuffer(buffers[i])}}else{this.appendSingleBuffer(buffers)}};BitBuffer.prototype.appendSingleBuffer=function(buffer){buffer=buffer instanceof Uint8Array?buffer:new Uint8Array(buffer);this.bytes.set(buffer,this.byteLength);this.byteLength+=buffer.length};BitBuffer.prototype.findNextStartCode=function(){for(var i=this.index+7>>3;i<this.byteLength;i++){if(this.bytes[i]==0&&this.bytes[i+1]==0&&this.bytes[i+2]==1){this.index=i+4<<3;return this.bytes[i+3]}}this.index=this.byteLength<<3;return-1};BitBuffer.prototype.findStartCode=function(code){var current=0;while(true){current=this.findNextStartCode();if(current===code||current===-1){return current}}return-1};BitBuffer.prototype.nextBytesAreStartCode=function(){var i=this.index+7>>3;return i>=this.byteLength||this.bytes[i]==0&&this.bytes[i+1]==0&&this.bytes[i+2]==1};BitBuffer.prototype.peek=function(count){var offset=this.index;var value=0;while(count){var currentByte=this.bytes[offset>>3],remaining=8-(offset&7),read=remaining<count?remaining:count,shift=remaining-read,mask=255>>8-read;value=value<<read|(currentByte&mask<<shift)>>shift;offset+=read;count-=read}return value};BitBuffer.prototype.read=function(count){var value=this.peek(count);this.index+=count;return value};BitBuffer.prototype.skip=function(count){return this.index+=count};BitBuffer.prototype.rewind=function(count){this.index=Math.max(this.index-count,0)};BitBuffer.prototype.has=function(count){return(this.byteLength<<3)-this.index>=count};BitBuffer.MODE={EVICT:1,EXPAND:2};return BitBuffer}();JSMpeg.Source.Ajax=function(){"use strict";var AjaxSource=function(url,options){this.url=url;this.destination=null;this.request=null;this.completed=false;this.established=false;this.progress=0};AjaxSource.prototype.connect=function(destination){this.destination=destination};AjaxSource.prototype.start=function(){this.request=new XMLHttpRequest;this.request.onreadystatechange=function(){if(this.request.readyState===this.request.DONE&&this.request.status===200){this.onLoad(this.request.response)}}.bind(this);this.request.onprogress=this.onProgress.bind(this);this.request.open("GET",this.url);this.request.responseType="arraybuffer";this.request.send()};AjaxSource.prototype.resume=function(secondsHeadroom){};AjaxSource.prototype.destroy=function(){this.request.abort()};AjaxSource.prototype.onProgress=function(ev){this.progress=ev.loaded/ev.total};AjaxSource.prototype.onLoad=function(data){this.established=true;this.completed=true;this.progress=1;if(this.destination){this.destination.write(data)}};return AjaxSource}();JSMpeg.Source.AjaxProgressive=function(){"use strict";var AjaxProgressiveSource=function(url,options){this.url=url;this.destination=null;this.request=null;this.completed=false;this.established=false;this.progress=0;this.fileSize=0;this.loadedSize=0;this.chunkSize=options.chunkSize||1024*1024;this.isLoading=false;this.loadStartTime=0;this.throttled=options.throttled!==false;this.aborted=false};AjaxProgressiveSource.prototype.connect=function(destination){this.destination=destination};AjaxProgressiveSource.prototype.start=function(){this.request=new XMLHttpRequest;this.request.onreadystatechange=function(){if(this.request.readyState===this.request.DONE){this.fileSize=parseInt(this.request.getResponseHeader("Content-Length"));this.loadNextChunk()}}.bind(this);this.request.onprogress=this.onProgress.bind(this);this.request.open("HEAD",this.url);this.request.send()};AjaxProgressiveSource.prototype.resume=function(secondsHeadroom){if(this.isLoading||!this.throttled){return}var worstCaseLoadingTime=this.loadTime*8+2;if(worstCaseLoadingTime>secondsHeadroom){this.loadNextChunk()}};AjaxProgressiveSource.prototype.destroy=function(){this.request.abort();this.aborted=true};AjaxProgressiveSource.prototype.loadNextChunk=function(){var start=this.loadedSize,end=Math.min(this.loadedSize+this.chunkSize-1,this.fileSize-1);if(start>=this.fileSize||this.aborted){this.completed=true;return}this.isLoading=true;this.loadStartTime=JSMpeg.Now();this.request=new XMLHttpRequest;this.request.onreadystatechange=function(){if(this.request.readyState===this.request.DONE&&this.request.status>=200&&this.request.status<300){this.onChunkLoad(this.request.response)}else if(this.request.readyState===this.request.DONE){if(this.loadFails++<3){this.loadNextChunk()}}}.bind(this);if(start===0){this.request.onprogress=this.onProgress.bind(this)}this.request.open("GET",this.url+"?"+start+"-"+end);this.request.setRequestHeader("Range","bytes="+start+"-"+end);this.request.responseType="arraybuffer";this.request.send()};AjaxProgressiveSource.prototype.onProgress=function(ev){this.progress=ev.loaded/ev.total};AjaxProgressiveSource.prototype.onChunkLoad=function(data){this.established=true;this.progress=1;this.loadedSize+=data.byteLength;this.loadFails=0;this.isLoading=false;if(this.destination){this.destination.write(data)}this.loadTime=JSMpeg.Now()-this.loadStartTime;if(!this.throttled){this.loadNextChunk()}};return AjaxProgressiveSource}();JSMpeg.Source.WebSocket=function(){"use strict";var WSSource=function(url,options){this.url=url;this.options=options;this.socket=null;this.callbacks={connect:[],data:[]};this.destination=null;this.reconnectInterval=options.reconnectInterval!==undefined?options.reconnectInterval:5;this.shouldAttemptReconnect=!!this.reconnectInterval;this.completed=false;this.established=false;this.progress=0;this.reconnectTimeoutId=0};WSSource.prototype.connect=function(destination){this.destination=destination};WSSource.prototype.destroy=function(){clearTimeout(this.reconnectTimeoutId);this.shouldAttemptReconnect=false;this.socket.close()};WSSource.prototype.start=function(){this.shouldAttemptReconnect=!!this.reconnectInterval;this.progress=0;this.established=false;this.socket=new WebSocket(this.url,this.options.protocols);this.socket.binaryType="arraybuffer";this.socket.onmessage=this.onMessage.bind(this);this.socket.onopen=this.onOpen.bind(this);this.socket.onerror=this.onClose.bind(this);this.socket.onclose=this.onClose.bind(this)};WSSource.prototype.resume=function(secondsHeadroom){};WSSource.prototype.onOpen=function(){this.progress=1;this.established=true};WSSource.prototype.onClose=function(){if(this.shouldAttemptReconnect){clearTimeout(this.reconnectTimeoutId);this.reconnectTimeoutId=setTimeout(function(){this.start()}.bind(this),this.reconnectInterval*1e3)}};WSSource.prototype.onMessage=function(ev){if(this.destination){this.destination.write(ev.data)}};return WSSource}();JSMpeg.Demuxer.TS=function(){"use strict";var TS=function(options){this.bits=null;this.leftoverBytes=null;this.guessVideoFrameEnd=true;this.pidsToStreamIds={};this.pesPacketInfo={};this.startTime=0;this.currentTime=0};TS.prototype.connect=function(streamId,destination){this.pesPacketInfo[streamId]={destination:destination,currentLength:0,totalLength:0,pts:0,buffers:[]}};TS.prototype.write=function(buffer){if(this.leftoverBytes){var totalLength=buffer.byteLength+this.leftoverBytes.byteLength;this.bits=new JSMpeg.BitBuffer(totalLength);this.bits.write([this.leftoverBytes,buffer])}else{this.bits=new JSMpeg.BitBuffer(buffer)}while(this.bits.has(188<<3)&&this.parsePacket()){}var leftoverCount=this.bits.byteLength-(this.bits.index>>3);this.leftoverBytes=leftoverCount>0?this.bits.bytes.subarray(this.bits.index>>3):null};TS.prototype.parsePacket=function(){if(this.bits.read(8)!==71){if(!this.resync()){return false}}var end=(this.bits.index>>3)+187;var transportError=this.bits.read(1),payloadStart=this.bits.read(1),transportPriority=this.bits.read(1),pid=this.bits.read(13),transportScrambling=this.bits.read(2),adaptationField=this.bits.read(2),continuityCounter=this.bits.read(4);var streamId=this.pidsToStreamIds[pid];if(payloadStart&&streamId){var pi=this.pesPacketInfo[streamId];if(pi&&pi.currentLength){this.packetComplete(pi)}}if(adaptationField&1){if(adaptationField&2){var adaptationFieldLength=this.bits.read(8);this.bits.skip(adaptationFieldLength<<3)}if(payloadStart&&this.bits.nextBytesAreStartCode()){this.bits.skip(24);streamId=this.bits.read(8);this.pidsToStreamIds[pid]=streamId;var packetLength=this.bits.read(16);this.bits.skip(8);var ptsDtsFlag=this.bits.read(2);this.bits.skip(6);var headerLength=this.bits.read(8);var payloadBeginIndex=this.bits.index+(headerLength<<3);var pi=this.pesPacketInfo[streamId];if(pi){var pts=0;if(ptsDtsFlag&2){this.bits.skip(4);var p32_30=this.bits.read(3);this.bits.skip(1);var p29_15=this.bits.read(15);this.bits.skip(1);var p14_0=this.bits.read(15);this.bits.skip(1);pts=(p32_30*1073741824+p29_15*32768+p14_0)/9e4;this.currentTime=pts;if(this.startTime===-1){this.startTime=pts}}var payloadLength=packetLength?packetLength-headerLength-3:0;this.packetStart(pi,pts,payloadLength)}this.bits.index=payloadBeginIndex}if(streamId){var pi=this.pesPacketInfo[streamId];if(pi){var start=this.bits.index>>3;var complete=this.packetAddData(pi,start,end);var hasPadding=!payloadStart&&adaptationField&2;if(complete||this.guessVideoFrameEnd&&hasPadding){this.packetComplete(pi)}}}}this.bits.index=end<<3;return true};TS.prototype.resync=function(){if(!this.bits.has(188*6<<3)){return false}var byteIndex=this.bits.index>>3;for(var i=0;i<187;i++){if(this.bits.bytes[byteIndex+i]===71){var foundSync=true;for(var j=1;j<5;j++){if(this.bits.bytes[byteIndex+i+188*j]!==71){foundSync=false;break}}if(foundSync){this.bits.index=byteIndex+i+1<<3;return true}}}console.warn("JSMpeg: Possible garbage data. Skipping.");this.bits.skip(187<<3);return false};TS.prototype.packetStart=function(pi,pts,payloadLength){pi.totalLength=payloadLength;pi.currentLength=0;pi.pts=pts};TS.prototype.packetAddData=function(pi,start,end){pi.buffers.push(this.bits.bytes.subarray(start,end));pi.currentLength+=end-start;var complete=pi.totalLength!==0&&pi.currentLength>=pi.totalLength;return complete};TS.prototype.packetComplete=function(pi){pi.destination.write(pi.pts,pi.buffers);pi.totalLength=0;pi.currentLength=0;pi.buffers=[]};TS.STREAM={PACK_HEADER:186,SYSTEM_HEADER:187,PROGRAM_MAP:188,PRIVATE_1:189,PADDING:190,PRIVATE_2:191,AUDIO_1:192,VIDEO_1:224,DIRECTORY:255};return TS}();JSMpeg.Decoder.Base=function(){"use strict";var BaseDecoder=function(options){this.destination=null;this.canPlay=false;this.collectTimestamps=!options.streaming;this.timestamps=[];this.timestampIndex=0;this.startTime=0;this.decodedTime=0;Object.defineProperty(this,"currentTime",{get:this.getCurrentTime})};BaseDecoder.prototype.connect=function(destination){this.destination=destination};BaseDecoder.prototype.write=function(pts,buffers){if(this.collectTimestamps){if(this.timestamps.length===0){this.startTime=pts;this.decodedTime=pts}this.timestamps.push({index:this.bits.byteLength<<3,time:pts})}this.bits.write(buffers);this.canPlay=true};BaseDecoder.prototype.seek=function(time){if(!this.collectTimestamps){return}this.timestampIndex=0;for(var i=0;i<this.timestamps.length;i++){if(this.timestamps[i].time>time){break}this.timestampIndex=i}var ts=this.timestamps[this.timestampIndex];if(ts){this.bits.index=ts.index;this.decodedTime=ts.time}else{this.bits.index=0;this.decodedTime=this.startTime}};BaseDecoder.prototype.decode=function(){this.advanceDecodedTime(0)};BaseDecoder.prototype.advanceDecodedTime=function(seconds){if(this.collectTimestamps){var newTimestampIndex=-1;for(var i=this.timestampIndex;i<this.timestamps.length;i++){if(this.timestamps[i].index>this.bits.index){break}newTimestampIndex=i}if(newTimestampIndex!==-1&&newTimestampIndex!==this.timestampIndex){this.timestampIndex=newTimestampIndex;this.decodedTime=this.timestamps[this.timestampIndex].time;return}}this.decodedTime+=seconds};BaseDecoder.prototype.getCurrentTime=function(){return this.decodedTime};return BaseDecoder}();JSMpeg.Decoder.MPEG1Video=function(){"use strict";var MPEG1=function(options){JSMpeg.Decoder.Base.call(this,options);var bufferSize=options.videoBufferSize||512*1024;var bufferMode=options.streaming?JSMpeg.BitBuffer.MODE.EVICT:JSMpeg.BitBuffer.MODE.EXPAND;this.bits=new JSMpeg.BitBuffer(bufferSize,bufferMode);this.customIntraQuantMatrix=new Uint8Array(64);this.customNonIntraQuantMatrix=new Uint8Array(64);this.blockData=new Int32Array(64);this.currentFrame=0;this.decodeFirstFrame=options.decodeFirstFrame!==false};MPEG1.prototype=Object.create(JSMpeg.Decoder.Base.prototype);MPEG1.prototype.constructor=MPEG1;MPEG1.prototype.write=function(pts,buffers){JSMpeg.Decoder.Base.prototype.write.call(this,pts,buffers);if(!this.hasSequenceHeader){if(this.bits.findStartCode(MPEG1.START.SEQUENCE)===-1){return false}this.decodeSequenceHeader();if(this.decodeFirstFrame){this.decode()}}};MPEG1.prototype.decode=function(){if(!this.hasSequenceHeader){return false}if(this.bits.findStartCode(MPEG1.START.PICTURE)===-1){var bufferedBytes=this.bits.byteLength-(this.bits.index>>3);return false}this.decodePicture();this.advanceDecodedTime(1/this.frameRate);return true};MPEG1.prototype.readHuffman=function(codeTable){var state=0;do{state=codeTable[state+this.bits.read(1)]}while(state>=0&&codeTable[state]!==0);return codeTable[state+2]};MPEG1.prototype.frameRate=30;MPEG1.prototype.decodeSequenceHeader=function(){var newWidth=this.bits.read(12),newHeight=this.bits.read(12);this.bits.skip(4);this.frameRate=MPEG1.PICTURE_RATE[this.bits.read(4)];this.bits.skip(18+1+10+1);if(newWidth!==this.width||newHeight!==this.height){this.width=newWidth;this.height=newHeight;this.initBuffers();if(this.destination){this.destination.resize(newWidth,newHeight)}}if(this.bits.read(1)){for(var i=0;i<64;i++){this.customIntraQuantMatrix[MPEG1.ZIG_ZAG[i]]=this.bits.read(8)}this.intraQuantMatrix=this.customIntraQuantMatrix}if(this.bits.read(1)){for(var i=0;i<64;i++){var idx=MPEG1.ZIG_ZAG[i];this.customNonIntraQuantMatrix[idx]=this.bits.read(8)}this.nonIntraQuantMatrix=this.customNonIntraQuantMatrix}this.hasSequenceHeader=true};MPEG1.prototype.initBuffers=function(){this.intraQuantMatrix=MPEG1.DEFAULT_INTRA_QUANT_MATRIX;this.nonIntraQuantMatrix=MPEG1.DEFAULT_NON_INTRA_QUANT_MATRIX;this.mbWidth=this.width+15>>4;this.mbHeight=this.height+15>>4;this.mbSize=this.mbWidth*this.mbHeight;this.codedWidth=this.mbWidth<<4;this.codedHeight=this.mbHeight<<4;this.codedSize=this.codedWidth*this.codedHeight;this.halfWidth=this.mbWidth<<3;this.halfHeight=this.mbHeight<<3;this.currentY=new Uint8ClampedArray(this.codedSize);this.currentY32=new Uint32Array(this.currentY.buffer);this.currentCr=new Uint8ClampedArray(this.codedSize>>2);this.currentCr32=new Uint32Array(this.currentCr.buffer);this.currentCb=new Uint8ClampedArray(this.codedSize>>2);this.currentCb32=new Uint32Array(this.currentCb.buffer);this.forwardY=new Uint8ClampedArray(this.codedSize);this.forwardY32=new Uint32Array(this.forwardY.buffer);this.forwardCr=new Uint8ClampedArray(this.codedSize>>2);this.forwardCr32=new Uint32Array(this.forwardCr.buffer);this.forwardCb=new Uint8ClampedArray(this.codedSize>>2);this.forwardCb32=new Uint32Array(this.forwardCb.buffer)};MPEG1.prototype.currentY=null;MPEG1.prototype.currentCr=null;MPEG1.prototype.currentCb=null;MPEG1.prototype.pictureType=0;MPEG1.prototype.forwardY=null;MPEG1.prototype.forwardCr=null;MPEG1.prototype.forwardCb=null;MPEG1.prototype.fullPelForward=false;MPEG1.prototype.forwardFCode=0;MPEG1.prototype.forwardRSize=0;MPEG1.prototype.forwardF=0;MPEG1.prototype.decodePicture=function(skipOutput){this.currentFrame++;this.bits.skip(10);this.pictureType=this.bits.read(3);this.bits.skip(16);if(this.pictureType<=0||this.pictureType>=MPEG1.PICTURE_TYPE.B){return}if(this.pictureType===MPEG1.PICTURE_TYPE.PREDICTIVE){this.fullPelForward=this.bits.read(1);this.forwardFCode=this.bits.read(3);if(this.forwardFCode===0){return}this.forwardRSize=this.forwardFCode-1;this.forwardF=1<<this.forwardRSize}var code=0;do{code=this.bits.findNextStartCode()}while(code===MPEG1.START.EXTENSION||code===MPEG1.START.USER_DATA);while(code>=MPEG1.START.SLICE_FIRST&&code<=MPEG1.START.SLICE_LAST){this.decodeSlice(code&255);code=this.bits.findNextStartCode()}if(code!==-1){this.bits.rewind(32)}if(this.destination){this.destination.render(this.currentY,this.currentCr,this.currentCb)}if(this.pictureType===MPEG1.PICTURE_TYPE.INTRA||this.pictureType===MPEG1.PICTURE_TYPE.PREDICTIVE){var tmpY=this.forwardY,tmpY32=this.forwardY32,tmpCr=this.forwardCr,tmpCr32=this.forwardCr32,tmpCb=this.forwardCb,tmpCb32=this.forwardCb32;this.forwardY=this.currentY;this.forwardY32=this.currentY32;this.forwardCr=this.currentCr;this.forwardCr32=this.currentCr32;this.forwardCb=this.currentCb;this.forwardCb32=this.currentCb32;this.currentY=tmpY;this.currentY32=tmpY32;this.currentCr=tmpCr;this.currentCr32=tmpCr32;this.currentCb=tmpCb;this.currentCb32=tmpCb32}};MPEG1.prototype.quantizerScale=0;MPEG1.prototype.sliceBegin=false;MPEG1.prototype.decodeSlice=function(slice){this.sliceBegin=true;this.macroblockAddress=(slice-1)*this.mbWidth-1;this.motionFwH=this.motionFwHPrev=0;this.motionFwV=this.motionFwVPrev=0;this.dcPredictorY=128;this.dcPredictorCr=128;this.dcPredictorCb=128;this.quantizerScale=this.bits.read(5);while(this.bits.read(1)){this.bits.skip(8)}do{this.decodeMacroblock()}while(!this.bits.nextBytesAreStartCode())};MPEG1.prototype.macroblockAddress=0;MPEG1.prototype.mbRow=0;MPEG1.prototype.mbCol=0;MPEG1.prototype.macroblockType=0;MPEG1.prototype.macroblockIntra=false;MPEG1.prototype.macroblockMotFw=false;MPEG1.prototype.motionFwH=0;MPEG1.prototype.motionFwV=0;MPEG1.prototype.motionFwHPrev=0;MPEG1.prototype.motionFwVPrev=0;MPEG1.prototype.decodeMacroblock=function(){var increment=0,t=this.readHuffman(MPEG1.MACROBLOCK_ADDRESS_INCREMENT);while(t===34){t=this.readHuffman(MPEG1.MACROBLOCK_ADDRESS_INCREMENT)}while(t===35){increment+=33;t=this.readHuffman(MPEG1.MACROBLOCK_ADDRESS_INCREMENT)}increment+=t;if(this.sliceBegin){this.sliceBegin=false;this.macroblockAddress+=increment}else{if(this.macroblockAddress+increment>=this.mbSize){return}if(increment>1){this.dcPredictorY=128;this.dcPredictorCr=128;this.dcPredictorCb=128;if(this.pictureType===MPEG1.PICTURE_TYPE.PREDICTIVE){this.motionFwH=this.motionFwHPrev=0;this.motionFwV=this.motionFwVPrev=0}}while(increment>1){this.macroblockAddress++;this.mbRow=this.macroblockAddress/this.mbWidth|0;this.mbCol=this.macroblockAddress%this.mbWidth;this.copyMacroblock(this.motionFwH,this.motionFwV,this.forwardY,this.forwardCr,this.forwardCb);increment--}this.macroblockAddress++}this.mbRow=this.macroblockAddress/this.mbWidth|0;this.mbCol=this.macroblockAddress%this.mbWidth;var mbTable=MPEG1.MACROBLOCK_TYPE[this.pictureType];this.macroblockType=this.readHuffman(mbTable);this.macroblockIntra=this.macroblockType&1;this.macroblockMotFw=this.macroblockType&8;if((this.macroblockType&16)!==0){this.quantizerScale=this.bits.read(5)}if(this.macroblockIntra){this.motionFwH=this.motionFwHPrev=0;this.motionFwV=this.motionFwVPrev=0}else{this.dcPredictorY=128;this.dcPredictorCr=128;this.dcPredictorCb=128;this.decodeMotionVectors();this.copyMacroblock(this.motionFwH,this.motionFwV,this.forwardY,this.forwardCr,this.forwardCb)}var cbp=(this.macroblockType&2)!==0?this.readHuffman(MPEG1.CODE_BLOCK_PATTERN):this.macroblockIntra?63:0;for(var block=0,mask=32;block<6;block++){if((cbp&mask)!==0){this.decodeBlock(block)}mask>>=1}};MPEG1.prototype.decodeMotionVectors=function(){var code,d,r=0;if(this.macroblockMotFw){code=this.readHuffman(MPEG1.MOTION);if(code!==0&&this.forwardF!==1){r=this.bits.read(this.forwardRSize);d=(Math.abs(code)-1<<this.forwardRSize)+r+1;if(code<0){d=-d}}else{d=code}this.motionFwHPrev+=d;if(this.motionFwHPrev>(this.forwardF<<4)-1){this.motionFwHPrev-=this.forwardF<<5}else if(this.motionFwHPrev<-this.forwardF<<4){this.motionFwHPrev+=this.forwardF<<5}this.motionFwH=this.motionFwHPrev;if(this.fullPelForward){this.motionFwH<<=1}code=this.readHuffman(MPEG1.MOTION);if(code!==0&&this.forwardF!==1){r=this.bits.read(this.forwardRSize);d=(Math.abs(code)-1<<this.forwardRSize)+r+1;if(code<0){d=-d}}else{d=code}this.motionFwVPrev+=d;if(this.motionFwVPrev>(this.forwardF<<4)-1){this.motionFwVPrev-=this.forwardF<<5}else if(this.motionFwVPrev<-this.forwardF<<4){this.motionFwVPrev+=this.forwardF<<5}this.motionFwV=this.motionFwVPrev;if(this.fullPelForward){this.motionFwV<<=1}}else if(this.pictureType===MPEG1.PICTURE_TYPE.PREDICTIVE){this.motionFwH=this.motionFwHPrev=0;this.motionFwV=this.motionFwVPrev=0}};MPEG1.prototype.copyMacroblock=function(motionH,motionV,sY,sCr,sCb){var width,scan,H,V,oddH,oddV,src,dest,last;var dY=this.currentY32,dCb=this.currentCb32,dCr=this.currentCr32;width=this.codedWidth;scan=width-16;H=motionH>>1;V=motionV>>1;oddH=(motionH&1)===1;oddV=(motionV&1)===1;src=((this.mbRow<<4)+V)*width+(this.mbCol<<4)+H;dest=this.mbRow*width+this.mbCol<<2;last=dest+(width<<2);var x,y1,y2,y;if(oddH){if(oddV){while(dest<last){y1=sY[src]+sY[src+width];src++;for(x=0;x<4;x++){y2=sY[src]+sY[src+width];src++;y=y1+y2+2>>2&255;y1=sY[src]+sY[src+width];src++;y|=y1+y2+2<<6&65280;y2=sY[src]+sY[src+width];src++;y|=y1+y2+2<<14&16711680;y1=sY[src]+sY[src+width];src++;y|=y1+y2+2<<22&4278190080;dY[dest++]=y}dest+=scan>>2;src+=scan-1}}else{while(dest<last){y1=sY[src++];for(x=0;x<4;x++){y2=sY[src++];y=y1+y2+1>>1&255;y1=sY[src++];y|=y1+y2+1<<7&65280;y2=sY[src++];y|=y1+y2+1<<15&16711680;y1=sY[src++];y|=y1+y2+1<<23&4278190080;dY[dest++]=y}dest+=scan>>2;src+=scan-1}}}else{if(oddV){while(dest<last){for(x=0;x<4;x++){y=sY[src]+sY[src+width]+1>>1&255;src++;y|=sY[src]+sY[src+width]+1<<7&65280;src++;y|=sY[src]+sY[src+width]+1<<15&16711680;src++;y|=sY[src]+sY[src+width]+1<<23&4278190080;src++;dY[dest++]=y}dest+=scan>>2;src+=scan}}else{while(dest<last){for(x=0;x<4;x++){y=sY[src];src++;y|=sY[src]<<8;src++;y|=sY[src]<<16;src++;y|=sY[src]<<24;src++;dY[dest++]=y}dest+=scan>>2;src+=scan}}}width=this.halfWidth;scan=width-8;H=motionH/2>>1;V=motionV/2>>1;oddH=(motionH/2&1)===1;oddV=(motionV/2&1)===1;src=((this.mbRow<<3)+V)*width+(this.mbCol<<3)+H;dest=this.mbRow*width+this.mbCol<<1;last=dest+(width<<1);var cr1,cr2,cr,cb1,cb2,cb;if(oddH){if(oddV){while(dest<last){cr1=sCr[src]+sCr[src+width];cb1=sCb[src]+sCb[src+width];src++;for(x=0;x<2;x++){cr2=sCr[src]+sCr[src+width];cb2=sCb[src]+sCb[src+width];src++;cr=cr1+cr2+2>>2&255;cb=cb1+cb2+2>>2&255;cr1=sCr[src]+sCr[src+width];cb1=sCb[src]+sCb[src+width];src++;cr|=cr1+cr2+2<<6&65280;cb|=cb1+cb2+2<<6&65280;cr2=sCr[src]+sCr[src+width];cb2=sCb[src]+sCb[src+width];src++;cr|=cr1+cr2+2<<14&16711680;cb|=cb1+cb2+2<<14&16711680;cr1=sCr[src]+sCr[src+width];cb1=sCb[src]+sCb[src+width];src++;cr|=cr1+cr2+2<<22&4278190080;cb|=cb1+cb2+2<<22&4278190080;dCr[dest]=cr;dCb[dest]=cb;dest++}dest+=scan>>2;src+=scan-1}}else{while(dest<last){cr1=sCr[src];cb1=sCb[src];src++;for(x=0;x<2;x++){cr2=sCr[src];cb2=sCb[src++];cr=cr1+cr2+1>>1&255;cb=cb1+cb2+1>>1&255;cr1=sCr[src];cb1=sCb[src++];cr|=cr1+cr2+1<<7&65280;cb|=cb1+cb2+1<<7&65280;cr2=sCr[src];cb2=sCb[src++];cr|=cr1+cr2+1<<15&16711680;cb|=cb1+cb2+1<<15&16711680;cr1=sCr[src];cb1=sCb[src++];cr|=cr1+cr2+1<<23&4278190080;cb|=cb1+cb2+1<<23&4278190080;dCr[dest]=cr;dCb[dest]=cb;dest++}dest+=scan>>2;src+=scan-1}}}else{if(oddV){while(dest<last){for(x=0;x<2;x++){cr=sCr[src]+sCr[src+width]+1>>1&255;cb=sCb[src]+sCb[src+width]+1>>1&255;src++;cr|=sCr[src]+sCr[src+width]+1<<7&65280;cb|=sCb[src]+sCb[src+width]+1<<7&65280;src++;cr|=sCr[src]+sCr[src+width]+1<<15&16711680;cb|=sCb[src]+sCb[src+width]+1<<15&16711680;src++;cr|=sCr[src]+sCr[src+width]+1<<23&4278190080;cb|=sCb[src]+sCb[src+width]+1<<23&4278190080;src++;dCr[dest]=cr;dCb[dest]=cb;dest++}dest+=scan>>2;src+=scan}}else{while(dest<last){for(x=0;x<2;x++){cr=sCr[src];cb=sCb[src];src++;cr|=sCr[src]<<8;cb|=sCb[src]<<8;src++;cr|=sCr[src]<<16;cb|=sCb[src]<<16;src++;cr|=sCr[src]<<24;cb|=sCb[src]<<24;src++;dCr[dest]=cr;dCb[dest]=cb;dest++}dest+=scan>>2;src+=scan}}}};MPEG1.prototype.dcPredictorY=0;MPEG1.prototype.dcPredictorCr=0;MPEG1.prototype.dcPredictorCb=0;MPEG1.prototype.blockData=null;MPEG1.prototype.decodeBlock=function(block){var n=0,quantMatrix;if(this.macroblockIntra){var predictor,dctSize;if(block<4){predictor=this.dcPredictorY;dctSize=this.readHuffman(MPEG1.DCT_DC_SIZE_LUMINANCE)}else{predictor=block===4?this.dcPredictorCr:this.dcPredictorCb;dctSize=this.readHuffman(MPEG1.DCT_DC_SIZE_CHROMINANCE)}if(dctSize>0){var differential=this.bits.read(dctSize);if((differential&1<<dctSize-1)!==0){this.blockData[0]=predictor+differential}else{this.blockData[0]=predictor+(-1<<dctSize|differential+1)}}else{this.blockData[0]=predictor}if(block<4){this.dcPredictorY=this.blockData[0]}else if(block===4){this.dcPredictorCr=this.blockData[0]}else{this.dcPredictorCb=this.blockData[0]}this.blockData[0]<<=3+5;quantMatrix=this.intraQuantMatrix;n=1}else{quantMatrix=this.nonIntraQuantMatrix}var level=0;while(true){var run=0,coeff=this.readHuffman(MPEG1.DCT_COEFF);if(coeff===1&&n>0&&this.bits.read(1)===0){break}if(coeff===65535){run=this.bits.read(6);level=this.bits.read(8);if(level===0){level=this.bits.read(8)}else if(level===128){level=this.bits.read(8)-256}else if(level>128){level=level-256}}else{run=coeff>>8;level=coeff&255;if(this.bits.read(1)){level=-level}}n+=run;var dezigZagged=MPEG1.ZIG_ZAG[n];n++;level<<=1;if(!this.macroblockIntra){level+=level<0?-1:1}level=level*this.quantizerScale*quantMatrix[dezigZagged]>>4;if((level&1)===0){level-=level>0?1:-1}if(level>2047){level=2047}else if(level<-2048){level=-2048}this.blockData[dezigZagged]=level*MPEG1.PREMULTIPLIER_MATRIX[dezigZagged]}var destArray,destIndex,scan;if(block<4){destArray=this.currentY;scan=this.codedWidth-8;destIndex=this.mbRow*this.codedWidth+this.mbCol<<4;if((block&1)!==0){destIndex+=8}if((block&2)!==0){destIndex+=this.codedWidth<<3}}else{destArray=block===4?this.currentCb:this.currentCr;scan=(this.codedWidth>>1)-8;destIndex=(this.mbRow*this.codedWidth<<2)+(this.mbCol<<3)}if(this.macroblockIntra){if(n===1){MPEG1.CopyValueToDestination(this.blockData[0]+128>>8,destArray,destIndex,scan);this.blockData[0]=0}else{MPEG1.IDCT(this.blockData);MPEG1.CopyBlockToDestination(this.blockData,destArray,destIndex,scan);JSMpeg.Fill(this.blockData,0)}}else{if(n===1){MPEG1.AddValueToDestination(this.blockData[0]+128>>8,destArray,destIndex,scan);this.blockData[0]=0}else{MPEG1.IDCT(this.blockData);MPEG1.AddBlockToDestination(this.blockData,destArray,destIndex,scan);JSMpeg.Fill(this.blockData,0)}}n=0};MPEG1.CopyBlockToDestination=function(block,dest,index,scan){for(var n=0;n<64;n+=8,index+=scan+8){dest[index+0]=block[n+0];dest[index+1]=block[n+1];dest[index+2]=block[n+2];dest[index+3]=block[n+3];dest[index+4]=block[n+4];dest[index+5]=block[n+5];dest[index+6]=block[n+6];dest[index+7]=block[n+7]}};MPEG1.AddBlockToDestination=function(block,dest,index,scan){for(var n=0;n<64;n+=8,index+=scan+8){dest[index+0]+=block[n+0];dest[index+1]+=block[n+1];dest[index+2]+=block[n+2];dest[index+3]+=block[n+3];dest[index+4]+=block[n+4];dest[index+5]+=block[n+5];dest[index+6]+=block[n+6];dest[index+7]+=block[n+7]}};MPEG1.CopyValueToDestination=function(value,dest,index,scan){for(var n=0;n<64;n+=8,index+=scan+8){dest[index+0]=value;dest[index+1]=value;dest[index+2]=value;dest[index+3]=value;dest[index+4]=value;dest[index+5]=value;dest[index+6]=value;dest[index+7]=value}};MPEG1.AddValueToDestination=function(value,dest,index,scan){for(var n=0;n<64;n+=8,index+=scan+8){dest[index+0]+=value;dest[index+1]+=value;dest[index+2]+=value;dest[index+3]+=value;dest[index+4]+=value;dest[index+5]+=value;dest[index+6]+=value;dest[index+7]+=value}};MPEG1.IDCT=function(block){var b1,b3,b4,b6,b7,tmp1,tmp2,m0,x0,x1,x2,x3,x4,y3,y4,y5,y6,y7;for(var i=0;i<8;++i){b1=block[4*8+i];b3=block[2*8+i]+block[6*8+i];b4=block[5*8+i]-block[3*8+i];tmp1=block[1*8+i]+block[7*8+i];tmp2=block[3*8+i]+block[5*8+i];b6=block[1*8+i]-block[7*8+i];b7=tmp1+tmp2;m0=block[0*8+i];x4=(b6*473-b4*196+128>>8)-b7;x0=x4-((tmp1-tmp2)*362+128>>8);x1=m0-b1;x2=((block[2*8+i]-block[6*8+i])*362+128>>8)-b3;x3=m0+b1;y3=x1+x2;y4=x3+b3;y5=x1-x2;y6=x3-b3;y7=-x0-(b4*473+b6*196+128>>8);block[0*8+i]=b7+y4;block[1*8+i]=x4+y3;block[2*8+i]=y5-x0;block[3*8+i]=y6-y7;block[4*8+i]=y6+y7;block[5*8+i]=x0+y5;block[6*8+i]=y3-x4;block[7*8+i]=y4-b7}for(var i=0;i<64;i+=8){b1=block[4+i];b3=block[2+i]+block[6+i];b4=block[5+i]-block[3+i];tmp1=block[1+i]+block[7+i];tmp2=block[3+i]+block[5+i];b6=block[1+i]-block[7+i];b7=tmp1+tmp2;m0=block[0+i];x4=(b6*473-b4*196+128>>8)-b7;x0=x4-((tmp1-tmp2)*362+128>>8);x1=m0-b1;x2=((block[2+i]-block[6+i])*362+128>>8)-b3;x3=m0+b1;y3=x1+x2;y4=x3+b3;y5=x1-x2;y6=x3-b3;y7=-x0-(b4*473+b6*196+128>>8);block[0+i]=b7+y4+128>>8;block[1+i]=x4+y3+128>>8;block[2+i]=y5-x0+128>>8;block[3+i]=y6-y7+128>>8;block[4+i]=y6+y7+128>>8;block[5+i]=x0+y5+128>>8;block[6+i]=y3-x4+128>>8;block[7+i]=y4-b7+128>>8}};MPEG1.PICTURE_RATE=[0,23.976,24,25,29.97,30,50,59.94,60,0,0,0,0,0,0,0];MPEG1.ZIG_ZAG=new Uint8Array([0,1,8,16,9,2,3,10,17,24,32,25,18,11,4,5,12,19,26,33,40,48,41,34,27,20,13,6,7,14,21,28,35,42,49,56,57,50,43,36,29,22,15,23,30,37,44,51,58,59,52,45,38,31,39,46,53,60,61,54,47,55,62,63]);MPEG1.DEFAULT_INTRA_QUANT_MATRIX=new Uint8Array([8,16,19,22,26,27,29,34,16,16,22,24,27,29,34,37,19,22,26,27,29,34,34,38,22,22,26,27,29,34,37,40,22,26,27,29,32,35,40,48,26,27,29,32,35,40,48,58,26,27,29,34,38,46,56,69,27,29,35,38,46,56,69,83]);MPEG1.DEFAULT_NON_INTRA_QUANT_MATRIX=new Uint8Array([16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16]);MPEG1.PREMULTIPLIER_MATRIX=new Uint8Array([32,44,42,38,32,25,17,9,44,62,58,52,44,35,24,12,42,58,55,49,42,33,23,12,38,52,49,44,38,30,20,10,32,44,42,38,32,25,17,9,25,35,33,30,25,20,14,7,17,24,23,20,17,14,9,5,9,12,12,10,9,7,5,2]);MPEG1.MACROBLOCK_ADDRESS_INCREMENT=new Int16Array([1*3,2*3,0,3*3,4*3,0,0,0,1,5*3,6*3,0,7*3,8*3,0,9*3,10*3,0,11*3,12*3,0,0,0,3,0,0,2,13*3,14*3,0,15*3,16*3,0,0,0,5,0,0,4,17*3,18*3,0,19*3,20*3,0,0,0,7,0,0,6,21*3,22*3,0,23*3,24*3,0,25*3,26*3,0,27*3,28*3,0,-1,29*3,0,-1,30*3,0,31*3,32*3,0,33*3,34*3,0,35*3,36*3,0,37*3,38*3,0,0,0,9,0,0,8,39*3,40*3,0,41*3,42*3,0,43*3,44*3,0,45*3,46*3,0,0,0,15,0,0,14,0,0,13,0,0,12,0,0,11,0,0,10,47*3,-1,0,-1,48*3,0,49*3,50*3,0,51*3,52*3,0,53*3,54*3,0,55*3,56*3,0,57*3,58*3,0,59*3,60*3,0,61*3,-1,0,-1,62*3,0,63*3,64*3,0,65*3,66*3,0,67*3,68*3,0,69*3,70*3,0,71*3,72*3,0,73*3,74*3,0,0,0,21,0,0,20,0,0,19,0,0,18,0,0,17,0,0,16,0,0,35,0,0,34,0,0,33,0,0,32,0,0,31,0,0,30,0,0,29,0,0,28,0,0,27,0,0,26,0,0,25,0,0,24,0,0,23,0,0,22]);MPEG1.MACROBLOCK_TYPE_INTRA=new Int8Array([1*3,2*3,0,-1,3*3,0,0,0,1,0,0,17]);MPEG1.MACROBLOCK_TYPE_PREDICTIVE=new Int8Array([1*3,2*3,0,3*3,4*3,0,0,0,10,5*3,6*3,0,0,0,2,7*3,8*3,0,0,0,8,9*3,10*3,0,11*3,12*3,0,-1,13*3,0,0,0,18,0,0,26,0,0,1,0,0,17]);MPEG1.MACROBLOCK_TYPE_B=new Int8Array([1*3,2*3,0,3*3,5*3,0,4*3,6*3,0,8*3,7*3,0,0,0,12,9*3,10*3,0,0,0,14,13*3,14*3,0,12*3,11*3,0,0,0,4,0,0,6,18*3,16*3,0,15*3,17*3,0,0,0,8,0,0,10,-1,19*3,0,0,0,1,20*3,21*3,0,0,0,30,0,0,17,0,0,22,0,0,26]);MPEG1.MACROBLOCK_TYPE=[null,MPEG1.MACROBLOCK_TYPE_INTRA,MPEG1.MACROBLOCK_TYPE_PREDICTIVE,MPEG1.MACROBLOCK_TYPE_B];MPEG1.CODE_BLOCK_PATTERN=new Int16Array([2*3,1*3,0,3*3,6*3,0,4*3,5*3,0,8*3,11*3,0,12*3,13*3,0,9*3,7*3,0,10*3,14*3,0,20*3,19*3,0,18*3,16*3,0,23*3,17*3,0,27*3,25*3,0,21*3,28*3,0,15*3,22*3,0,24*3,26*3,0,0,0,60,35*3,40*3,0,44*3,48*3,0,38*3,36*3,0,42*3,47*3,0,29*3,31*3,0,39*3,32*3,0,0,0,32,45*3,46*3,0,33*3,41*3,0,43*3,34*3,0,0,0,4,30*3,37*3,0,0,0,8,0,0,16,0,0,44,50*3,56*3,0,0,0,28,0,0,52,0,0,62,61*3,59*3,0,52*3,60*3,0,0,0,1,55*3,54*3,0,0,0,61,0,0,56,57*3,58*3,0,0,0,2,0,0,40,51*3,62*3,0,0,0,48,64*3,63*3,0,49*3,53*3,0,0,0,20,0,0,12,80*3,83*3,0,0,0,63,77*3,75*3,0,65*3,73*3,0,84*3,66*3,0,0,0,24,0,0,36,0,0,3,69*3,87*3,0,81*3,79*3,0,68*3,71*3,0,70*3,78*3,0,67*3,76*3,0,72*3,74*3,0,86*3,85*3,0,88*3,82*3,0,-1,94*3,0,95*3,97*3,0,0,0,33,0,0,9,106*3,110*3,0,102*3,116*3,0,0,0,5,0,0,10,93*3,89*3,0,0,0,6,0,0,18,0,0,17,0,0,34,113*3,119*3,0,103*3,104*3,0,90*3,92*3,0,109*3,107*3,0,117*3,118*3,0,101*3,99*3,0,98*3,96*3,0,100*3,91*3,0,114*3,115*3,0,105*3,108*3,0,112*3,111*3,0,121*3,125*3,0,0,0,41,0,0,14,0,0,21,124*3,122*3,0,120*3,123*3,0,0,0,11,0,0,19,0,0,7,0,0,35,0,0,13,0,0,50,0,0,49,0,0,58,0,0,37,0,0,25,0,0,45,0,0,57,0,0,26,0,0,29,0,0,38,0,0,53,0,0,23,0,0,43,0,0,46,0,0,42,0,0,22,0,0,54,0,0,51,0,0,15,0,0,30,0,0,39,0,0,47,0,0,55,0,0,27,0,0,59,0,0,31]);MPEG1.MOTION=new Int16Array([1*3,2*3,0,4*3,3*3,0,0,0,0,6*3,5*3,0,8*3,7*3,0,0,0,-1,0,0,1,9*3,10*3,0,12*3,11*3,0,0,0,2,0,0,-2,14*3,15*3,0,16*3,13*3,0,20*3,18*3,0,0,0,3,0,0,-3,17*3,19*3,0,-1,23*3,0,27*3,25*3,0,26*3,21*3,0,24*3,22*3,0,32*3,28*3,0,29*3,31*3,0,-1,33*3,0,36*3,35*3,0,0,0,-4,30*3,34*3,0,0,0,4,0,0,-7,0,0,5,37*3,41*3,0,0,0,-5,0,0,7,38*3,40*3,0,42*3,39*3,0,0,0,-6,0,0,6,51*3,54*3,0,50*3,49*3,0,45*3,46*3,0,52*3,47*3,0,43*3,53*3,0,44*3,48*3,0,0,0,10,0,0,9,0,0,8,0,0,-8,57*3,66*3,0,0,0,-9,60*3,64*3,0,56*3,61*3,0,55*3,62*3,0,58*3,63*3,0,0,0,-10,59*3,65*3,0,0,0,12,0,0,16,0,0,13,0,0,14,0,0,11,0,0,15,0,0,-16,0,0,-12,0,0,-14,0,0,-15,0,0,-11,0,0,-13]);MPEG1.DCT_DC_SIZE_LUMINANCE=new Int8Array([2*3,1*3,0,6*3,5*3,0,3*3,4*3,0,0,0,1,0,0,2,9*3,8*3,0,7*3,10*3,0,0,0,0,12*3,11*3,0,0,0,4,0,0,3,13*3,14*3,0,0,0,5,0,0,6,16*3,15*3,0,17*3,-1,0,0,0,7,0,0,8]);MPEG1.DCT_DC_SIZE_CHROMINANCE=new Int8Array([2*3,1*3,0,4*3,3*3,0,6*3,5*3,0,8*3,7*3,0,0,0,2,0,0,1,0,0,0,10*3,9*3,0,0,0,3,12*3,11*3,0,0,0,4,14*3,13*3,0,0,0,5,16*3,15*3,0,0,0,6,17*3,-1,0,0,0,7,0,0,8]);MPEG1.DCT_COEFF=new Int32Array([1*3,2*3,0,4*3,3*3,0,0,0,1,7*3,8*3,0,6*3,5*3,0,13*3,9*3,0,11*3,10*3,0,14*3,12*3,0,0,0,257,20*3,22*3,0,18*3,21*3,0,16*3,19*3,0,0,0,513,17*3,15*3,0,0,0,2,0,0,3,27*3,25*3,0,29*3,31*3,0,24*3,26*3,0,32*3,30*3,0,0,0,1025,23*3,28*3,0,0,0,769,0,0,258,0,0,1793,0,0,65535,0,0,1537,37*3,36*3,0,0,0,1281,35*3,34*3,0,39*3,38*3,0,33*3,42*3,0,40*3,41*3,0,52*3,50*3,0,54*3,53*3,0,48*3,49*3,0,43*3,45*3,0,46*3,44*3,0,0,0,2049,0,0,4,0,0,514,0,0,2305,51*3,47*3,0,55*3,57*3,0,60*3,56*3,0,59*3,58*3,0,61*3,62*3,0,0,0,2561,0,0,3329,0,0,6,0,0,259,0,0,5,0,0,770,0,0,2817,0,0,3073,76*3,75*3,0,67*3,70*3,0,73*3,71*3,0,78*3,74*3,0,72*3,77*3,0,69*3,64*3,0,68*3,63*3,0,66*3,65*3,0,81*3,87*3,0,91*3,80*3,0,82*3,79*3,0,83*3,86*3,0,93*3,92*3,0,84*3,85*3,0,90*3,94*3,0,88*3,89*3,0,0,0,515,0,0,260,0,0,7,0,0,1026,0,0,1282,0,0,4097,0,0,3841,0,0,3585,105*3,107*3,0,111*3,114*3,0,104*3,97*3,0,125*3,119*3,0,96*3,98*3,0,-1,123*3,0,95*3,101*3,0,106*3,121*3,0,99*3,102*3,0,113*3,103*3,0,112*3,116*3,0,110*3,100*3,0,124*3,115*3,0,117*3,122*3,0,109*3,118*3,0,120*3,108*3,0,127*3,136*3,0,139*3,140*3,0,130*3,126*3,0,145*3,146*3,0,128*3,129*3,0,0,0,2050,132*3,134*3,0,155*3,154*3,0,0,0,8,137*3,133*3,0,143*3,144*3,0,151*3,138*3,0,142*3,141*3,0,0,0,10,0,0,9,0,0,11,0,0,5377,0,0,1538,0,0,771,0,0,5121,0,0,1794,0,0,4353,0,0,4609,0,0,4865,148*3,152*3,0,0,0,1027,153*3,150*3,0,0,0,261,131*3,135*3,0,0,0,516,149*3,147*3,0,172*3,173*3,0,162*3,158*3,0,170*3,161*3,0,168*3,166*3,0,157*3,179*3,0,169*3,167*3,0,174*3,171*3,0,178*3,177*3,0,156*3,159*3,0,164*3,165*3,0,183*3,182*3,0,175*3,176*3,0,0,0,263,0,0,2562,0,0,2306,0,0,5633,0,0,5889,0,0,6401,0,0,6145,0,0,1283,0,0,772,0,0,13,0,0,12,0,0,14,0,0,15,0,0,517,0,0,6657,0,0,262,180*3,181*3,0,160*3,163*3,0,196*3,199*3,0,0,0,27,203*3,185*3,0,202*3,201*3,0,0,0,19,0,0,22,197*3,207*3,0,0,0,18,191*3,192*3,0,188*3,190*3,0,0,0,20,184*3,194*3,0,0,0,21,186*3,193*3,0,0,0,23,204*3,198*3,0,0,0,25,0,0,24,200*3,205*3,0,0,0,31,0,0,30,0,0,28,0,0,29,0,0,26,0,0,17,0,0,16,189*3,206*3,0,187*3,195*3,0,218*3,211*3,0,0,0,37,215*3,216*3,0,0,0,36,210*3,212*3,0,0,0,34,213*3,209*3,0,221*3,222*3,0,219*3,208*3,0,217*3,214*3,0,223*3,220*3,0,0,0,35,0,0,267,0,0,40,0,0,268,0,0,266,0,0,32,0,0,264,0,0,265,0,0,38,0,0,269,0,0,270,0,0,33,0,0,39,0,0,7937,0,0,6913,0,0,7681,0,0,4098,0,0,7425,0,0,7169,0,0,271,0,0,274,0,0,273,0,0,272,0,0,1539,0,0,2818,0,0,3586,0,0,3330,0,0,3074,0,0,3842]);MPEG1.PICTURE_TYPE={INTRA:1,PREDICTIVE:2,B:3};MPEG1.START={SEQUENCE:179,SLICE_FIRST:1,SLICE_LAST:175,PICTURE:0,EXTENSION:181,USER_DATA:178};return MPEG1}();JSMpeg.Decoder.MP2Audio=function(){"use strict";var MP2=function(options){JSMpeg.Decoder.Base.call(this,options);var bufferSize=options.audioBufferSize||128*1024;var bufferMode=options.streaming?JSMpeg.BitBuffer.MODE.EVICT:JSMpeg.BitBuffer.MODE.EXPAND;this.bits=new JSMpeg.BitBuffer(bufferSize,bufferMode);this.left=new Float32Array(1152);this.right=new Float32Array(1152);this.sampleRate=44100;this.D=new Float32Array(1024);this.D.set(MP2.SYNTHESIS_WINDOW,0);this.D.set(MP2.SYNTHESIS_WINDOW,512);this.V=new Float32Array(1024);this.U=new Int32Array(32);this.VPos=0;this.allocation=[new Array(32),new Array(32)];this.scaleFactorInfo=[new Uint8Array(32),new Uint8Array(32)];this.scaleFactor=[new Array(32),new Array(32)];this.sample=[new Array(32),new Array(32)];for(var j=0;j<2;j++){for(var i=0;i<32;i++){this.scaleFactor[j][i]=[0,0,0];this.sample[j][i]=[0,0,0]}}};MP2.prototype=Object.create(JSMpeg.Decoder.Base.prototype);MP2.prototype.constructor=MP2;MP2.prototype.decode=function(){var pos=this.bits.index>>3;if(pos>=this.bits.byteLength){return false}var decoded=this.decodeFrame(this.left,this.right);this.bits.index=pos+decoded<<3;if(!decoded){return false}if(this.destination){this.destination.play(this.sampleRate,this.left,this.right)}this.advanceDecodedTime(this.left.length/this.sampleRate);return true};MP2.prototype.getCurrentTime=function(){var enqueuedTime=this.destination?this.destination.enqueuedTime:0;return this.decodedTime-enqueuedTime};MP2.prototype.decodeFrame=function(left,right){var sync=this.bits.read(11),version=this.bits.read(2),layer=this.bits.read(2),hasCRC=!this.bits.read(1);if(sync!==MP2.FRAME_SYNC||version!==MP2.VERSION.MPEG_1||layer!==MP2.LAYER.II){return 0}var bitrateIndex=this.bits.read(4)-1;if(bitrateIndex>13){return 0}var sampleRateIndex=this.bits.read(2);var sampleRate=MP2.SAMPLE_RATE[sampleRateIndex];if(sampleRateIndex===3){return 0}if(version===MP2.VERSION.MPEG_2){sampleRateIndex+=4;bitrateIndex+=14}var padding=this.bits.read(1),privat=this.bits.read(1),mode=this.bits.read(2);var bound=0;if(mode===MP2.MODE.JOINT_STEREO){bound=this.bits.read(2)+1<<2}else{this.bits.skip(2);bound=mode===MP2.MODE.MONO?0:32}this.bits.skip(4);if(hasCRC){this.bits.skip(16)}var bitrate=MP2.BIT_RATE[bitrateIndex],sampleRate=MP2.SAMPLE_RATE[sampleRateIndex],frameSize=144e3*bitrate/sampleRate+padding|0;var tab3=0;var sblimit=0;if(version===MP2.VERSION.MPEG_2){tab3=2;sblimit=30}else{var tab1=mode===MP2.MODE.MONO?0:1;var tab2=MP2.QUANT_LUT_STEP_1[tab1][bitrateIndex];tab3=MP2.QUANT_LUT_STEP_2[tab2][sampleRateIndex];sblimit=tab3&63;tab3>>=6}if(bound>sblimit){bound=sblimit}for(var sb=0;sb<bound;sb++){this.allocation[0][sb]=this.readAllocation(sb,tab3);this.allocation[1][sb]=this.readAllocation(sb,tab3)}for(var sb=bound;sb<sblimit;sb++){this.allocation[0][sb]=this.allocation[1][sb]=this.readAllocation(sb,tab3)}var channels=mode===MP2.MODE.MONO?1:2;for(var sb=0;sb<sblimit;sb++){for(ch=0;ch<channels;ch++){if(this.allocation[ch][sb]){this.scaleFactorInfo[ch][sb]=this.bits.read(2)}}if(mode===MP2.MODE.MONO){this.scaleFactorInfo[1][sb]=this.scaleFactorInfo[0][sb]}}for(var sb=0;sb<sblimit;sb++){for(var ch=0;ch<channels;ch++){if(this.allocation[ch][sb]){var sf=this.scaleFactor[ch][sb];switch(this.scaleFactorInfo[ch][sb]){case 0:sf[0]=this.bits.read(6);sf[1]=this.bits.read(6);sf[2]=this.bits.read(6);break;case 1:sf[0]=sf[1]=this.bits.read(6);sf[2]=this.bits.read(6);break;case 2:sf[0]=sf[1]=sf[2]=this.bits.read(6);break;case 3:sf[0]=this.bits.read(6);sf[1]=sf[2]=this.bits.read(6);break}}}if(mode===MP2.MODE.MONO){this.scaleFactor[1][sb][0]=this.scaleFactor[0][sb][0];this.scaleFactor[1][sb][1]=this.scaleFactor[0][sb][1];this.scaleFactor[1][sb][2]=this.scaleFactor[0][sb][2]}}var outPos=0;for(var part=0;part<3;part++){for(var granule=0;granule<4;granule++){for(var sb=0;sb<bound;sb++){this.readSamples(0,sb,part);this.readSamples(1,sb,part)}for(var sb=bound;sb<sblimit;sb++){this.readSamples(0,sb,part);this.sample[1][sb][0]=this.sample[0][sb][0];this.sample[1][sb][1]=this.sample[0][sb][1];this.sample[1][sb][2]=this.sample[0][sb][2]}for(var sb=sblimit;sb<32;sb++){this.sample[0][sb][0]=0;this.sample[0][sb][1]=0;this.sample[0][sb][2]=0;this.sample[1][sb][0]=0;this.sample[1][sb][1]=0;this.sample[1][sb][2]=0}for(var p=0;p<3;p++){this.VPos=this.VPos-64&1023;for(var ch=0;ch<2;ch++){MP2.MatrixTransform(this.sample[ch],p,this.V,this.VPos);JSMpeg.Fill(this.U,0);var dIndex=512-(this.VPos>>1);var vIndex=this.VPos%128>>1;while(vIndex<1024){for(var i=0;i<32;++i){this.U[i]+=this.D[dIndex++]*this.V[vIndex++]}vIndex+=128-32;dIndex+=64-32}vIndex=128-32+1024-vIndex;dIndex-=512-32;while(vIndex<1024){for(var i=0;i<32;++i){this.U[i]+=this.D[dIndex++]*this.V[vIndex++]}vIndex+=128-32;dIndex+=64-32}var outChannel=ch===0?left:right;for(var j=0;j<32;j++){outChannel[outPos+j]=this.U[j]/2147418112}}outPos+=32}}}this.sampleRate=sampleRate;return frameSize};MP2.prototype.readAllocation=function(sb,tab3){var tab4=MP2.QUANT_LUT_STEP_3[tab3][sb];var qtab=MP2.QUANT_LUT_STEP4[tab4&15][this.bits.read(tab4>>4)];return qtab?MP2.QUANT_TAB[qtab-1]:0};MP2.prototype.readSamples=function(ch,sb,part){var q=this.allocation[ch][sb],sf=this.scaleFactor[ch][sb][part],sample=this.sample[ch][sb],val=0;if(!q){sample[0]=sample[1]=sample[2]=0;return}if(sf===63){sf=0}else{var shift=sf/3|0;sf=MP2.SCALEFACTOR_BASE[sf%3]+(1<<shift>>1)>>shift}var adj=q.levels;if(q.group){val=this.bits.read(q.bits);sample[0]=val%adj;val=val/adj|0;sample[1]=val%adj;sample[2]=val/adj|0}else{sample[0]=this.bits.read(q.bits);sample[1]=this.bits.read(q.bits);sample[2]=this.bits.read(q.bits)}var scale=65536/(adj+1)|0;adj=(adj+1>>1)-1;val=(adj-sample[0])*scale;sample[0]=val*(sf>>12)+(val*(sf&4095)+2048>>12)>>12;val=(adj-sample[1])*scale;sample[1]=val*(sf>>12)+(val*(sf&4095)+2048>>12)>>12;val=(adj-sample[2])*scale;sample[2]=val*(sf>>12)+(val*(sf&4095)+2048>>12)>>12};MP2.MatrixTransform=function(s,ss,d,dp){var t01,t02,t03,t04,t05,t06,t07,t08,t09,t10,t11,t12,t13,t14,t15,t16,t17,t18,t19,t20,t21,t22,t23,t24,t25,t26,t27,t28,t29,t30,t31,t32,t33;t01=s[0][ss]+s[31][ss];t02=(s[0][ss]-s[31][ss])*.500602998235;t03=s[1][ss]+s[30][ss];t04=(s[1][ss]-s[30][ss])*.505470959898;t05=s[2][ss]+s[29][ss];t06=(s[2][ss]-s[29][ss])*.515447309923;t07=s[3][ss]+s[28][ss];t08=(s[3][ss]-s[28][ss])*.53104259109;t09=s[4][ss]+s[27][ss];t10=(s[4][ss]-s[27][ss])*.553103896034;t11=s[5][ss]+s[26][ss];t12=(s[5][ss]-s[26][ss])*.582934968206;t13=s[6][ss]+s[25][ss];t14=(s[6][ss]-s[25][ss])*.622504123036;t15=s[7][ss]+s[24][ss];t16=(s[7][ss]-s[24][ss])*.674808341455;t17=s[8][ss]+s[23][ss];t18=(s[8][ss]-s[23][ss])*.744536271002;t19=s[9][ss]+s[22][ss];t20=(s[9][ss]-s[22][ss])*.839349645416;t21=s[10][ss]+s[21][ss];t22=(s[10][ss]-s[21][ss])*.972568237862;t23=s[11][ss]+s[20][ss];t24=(s[11][ss]-s[20][ss])*1.16943993343;t25=s[12][ss]+s[19][ss];t26=(s[12][ss]-s[19][ss])*1.48416461631;t27=s[13][ss]+s[18][ss];t28=(s[13][ss]-s[18][ss])*2.05778100995;t29=s[14][ss]+s[17][ss];t30=(s[14][ss]-s[17][ss])*3.40760841847;t31=s[15][ss]+s[16][ss];t32=(s[15][ss]-s[16][ss])*10.1900081235;t33=t01+t31;t31=(t01-t31)*.502419286188;t01=t03+t29;t29=(t03-t29)*.52249861494;t03=t05+t27;t27=(t05-t27)*.566944034816;t05=t07+t25;t25=(t07-t25)*.64682178336;t07=t09+t23;t23=(t09-t23)*.788154623451;t09=t11+t21;t21=(t11-t21)*1.06067768599;t11=t13+t19;t19=(t13-t19)*1.72244709824;t13=t15+t17;t17=(t15-t17)*5.10114861869;t15=t33+t13;t13=(t33-t13)*.509795579104;t33=t01+t11;t01=(t01-t11)*.601344886935;t11=t03+t09;t09=(t03-t09)*.899976223136;t03=t05+t07;t07=(t05-t07)*2.56291544774;t05=t15+t03;t15=(t15-t03)*.541196100146;t03=t33+t11;t11=(t33-t11)*1.30656296488;t33=t05+t03;t05=(t05-t03)*.707106781187;t03=t15+t11;t15=(t15-t11)*.707106781187;t03+=t15;t11=t13+t07;t13=(t13-t07)*.541196100146;t07=t01+t09;t09=(t01-t09)*1.30656296488;t01=t11+t07;t07=(t11-t07)*.707106781187;t11=t13+t09;t13=(t13-t09)*.707106781187;t11+=t13;t01+=t11;t11+=t07;t07+=t13;t09=t31+t17;t31=(t31-t17)*.509795579104;t17=t29+t19;t29=(t29-t19)*.601344886935;t19=t27+t21;t21=(t27-t21)*.899976223136;t27=t25+t23;t23=(t25-t23)*2.56291544774;t25=t09+t27;t09=(t09-t27)*.541196100146;t27=t17+t19;t19=(t17-t19)*1.30656296488;t17=t25+t27;t27=(t25-t27)*.707106781187;t25=t09+t19;t19=(t09-t19)*.707106781187;t25+=t19;t09=t31+t23;t31=(t31-t23)*.541196100146;t23=t29+t21;t21=(t29-t21)*1.30656296488;t29=t09+t23;t23=(t09-t23)*.707106781187;t09=t31+t21;t31=(t31-t21)*.707106781187;t09+=t31;t29+=t09;t09+=t23;t23+=t31;t17+=t29;t29+=t25;t25+=t09;t09+=t27;t27+=t23;t23+=t19;t19+=t31;t21=t02+t32;t02=(t02-t32)*.502419286188;t32=t04+t30;t04=(t04-t30)*.52249861494;t30=t06+t28;t28=(t06-t28)*.566944034816;t06=t08+t26;t08=(t08-t26)*.64682178336;t26=t10+t24;t10=(t10-t24)*.788154623451;t24=t12+t22;t22=(t12-t22)*1.06067768599;t12=t14+t20;t20=(t14-t20)*1.72244709824;t14=t16+t18;t16=(t16-t18)*5.10114861869;t18=t21+t14;t14=(t21-t14)*.509795579104;t21=t32+t12;t32=(t32-t12)*.601344886935;t12=t30+t24;t24=(t30-t24)*.899976223136;t30=t06+t26;t26=(t06-t26)*2.56291544774;t06=t18+t30;t18=(t18-t30)*.541196100146;t30=t21+t12;t12=(t21-t12)*1.30656296488;t21=t06+t30;t30=(t06-t30)*.707106781187;t06=t18+t12;t12=(t18-t12)*.707106781187;t06+=t12;t18=t14+t26;t26=(t14-t26)*.541196100146;t14=t32+t24;t24=(t32-t24)*1.30656296488;t32=t18+t14;t14=(t18-t14)*.707106781187;t18=t26+t24;t24=(t26-t24)*.707106781187;t18+=t24;t32+=t18;t18+=t14;t26=t14+t24;t14=t02+t16;t02=(t02-t16)*.509795579104;t16=t04+t20;t04=(t04-t20)*.601344886935;t20=t28+t22;t22=(t28-t22)*.899976223136;t28=t08+t10;t10=(t08-t10)*2.56291544774;t08=t14+t28;t14=(t14-t28)*.541196100146;t28=t16+t20;t20=(t16-t20)*1.30656296488;t16=t08+t28;t28=(t08-t28)*.707106781187;t08=t14+t20;t20=(t14-t20)*.707106781187;t08+=t20;t14=t02+t10;t02=(t02-t10)*.541196100146;t10=t04+t22;t22=(t04-t22)*1.30656296488;t04=t14+t10;t10=(t14-t10)*.707106781187;t14=t02+t22;t02=(t02-t22)*.707106781187;t14+=t02;t04+=t14;t14+=t10;t10+=t02;t16+=t04;t04+=t08;t08+=t14;t14+=t28;t28+=t10;t10+=t20;t20+=t02;t21+=t16;t16+=t32;t32+=t04;t04+=t06;t06+=t08;t08+=t18;t18+=t14;t14+=t30;t30+=t28;t28+=t26;t26+=t10;t10+=t12;t12+=t20;t20+=t24;t24+=t02;d[dp+48]=-t33;d[dp+49]=d[dp+47]=-t21;d[dp+50]=d[dp+46]=-t17;d[dp+51]=d[dp+45]=-t16;d[dp+52]=d[dp+44]=-t01;d[dp+53]=d[dp+43]=-t32;d[dp+54]=d[dp+42]=-t29;d[dp+55]=d[dp+41]=-t04;d[dp+56]=d[dp+40]=-t03;d[dp+57]=d[dp+39]=-t06;d[dp+58]=d[dp+38]=-t25;d[dp+59]=d[dp+37]=-t08;d[dp+60]=d[dp+36]=-t11;d[dp+61]=d[dp+35]=-t18;d[dp+62]=d[dp+34]=-t09;d[dp+63]=d[dp+33]=-t14;d[dp+32]=-t05;d[dp+0]=t05;d[dp+31]=-t30;d[dp+1]=t30;d[dp+30]=-t27;d[dp+2]=t27;d[dp+29]=-t28;d[dp+3]=t28;d[dp+28]=-t07;d[dp+4]=t07;d[dp+27]=-t26;d[dp+5]=t26;d[dp+26]=-t23;d[dp+6]=t23;d[dp+25]=-t10;d[dp+7]=t10;d[dp+24]=-t15;d[dp+8]=t15;d[dp+23]=-t12;d[dp+9]=t12;d[dp+22]=-t19;d[dp+10]=t19;d[dp+21]=-t20;d[dp+11]=t20;d[dp+20]=-t13;d[dp+12]=t13;d[dp+19]=-t24;d[dp+13]=t24;d[dp+18]=-t31;d[dp+14]=t31;d[dp+17]=-t02;d[dp+15]=t02;d[dp+16]=0};MP2.FRAME_SYNC=2047;MP2.VERSION={MPEG_2_5:0,MPEG_2:2,MPEG_1:3};MP2.LAYER={III:1,II:2,I:3};MP2.MODE={STEREO:0,JOINT_STEREO:1,DUAL_CHANNEL:2,MONO:3};MP2.SAMPLE_RATE=new Uint16Array([44100,48e3,32e3,0,22050,24e3,16e3,0]);MP2.BIT_RATE=new Uint16Array([32,48,56,64,80,96,112,128,160,192,224,256,320,384,8,16,24,32,40,48,56,64,80,96,112,128,144,160]);MP2.SCALEFACTOR_BASE=new Uint32Array([33554432,26632170,21137968]);MP2.SYNTHESIS_WINDOW=new Float32Array([0,-.5,-.5,-.5,-.5,-.5,-.5,-1,-1,-1,-1,-1.5,-1.5,-2,-2,-2.5,-2.5,-3,-3.5,-3.5,-4,-4.5,-5,-5.5,-6.5,-7,-8,-8.5,-9.5,-10.5,-12,-13,-14.5,-15.5,-17.5,-19,-20.5,-22.5,-24.5,-26.5,-29,-31.5,-34,-36.5,-39.5,-42.5,-45.5,-48.5,-52,-55.5,-58.5,-62.5,-66,-69.5,-73.5,-77,-80.5,-84.5,-88,-91.5,-95,-98,-101,-104,106.5,109,111,112.5,113.5,114,114,113.5,112,110.5,107.5,104,100,94.5,88.5,81.5,73,63.5,53,41.5,28.5,14.5,-1,-18,-36,-55.5,-76.5,-98.5,-122,-147,-173.5,-200.5,-229.5,-259.5,-290.5,-322.5,-355.5,-389.5,-424,-459.5,-495.5,-532,-568.5,-605,-641.5,-678,-714,-749,-783.5,-817,-849,-879.5,-908.5,-935,-959.5,-981,-1000.5,-1016,-1028.5,-1037.5,-1042.5,-1043.5,-1040,-1031.5,1018.5,1e3,976,946.5,911,869.5,822,767.5,707,640,565.5,485,397,302.5,201,92.5,-22.5,-144,-272.5,-407,-547.5,-694,-846,-1003,-1165,-1331.5,-1502,-1675.5,-1852.5,-2031.5,-2212.5,-2394,-2576.5,-2758.5,-2939.5,-3118.5,-3294.5,-3467.5,-3635.5,-3798.5,-3955,-4104.5,-4245.5,-4377.5,-4499,-4609.5,-4708,-4792.5,-4863.5,-4919,-4958,-4979.5,-4983,-4967.5,-4931.5,-4875,-4796,-4694.5,-4569.5,-4420,-4246,-4046,-3820,-3567,3287,2979.5,2644,2280.5,1888,1467.5,1018.5,541,35,-499,-1061,-1650,-2266.5,-2909,-3577,-4270,-4987.5,-5727.5,-6490,-7274,-8077.5,-8899.5,-9739,-10594.5,-11464.5,-12347,-13241,-14144.5,-15056,-15973.5,-16895.5,-17820,-18744.5,-19668,-20588,-21503,-22410.5,-23308.5,-24195,-25068.5,-25926.5,-26767,-27589,-28389,-29166.5,-29919,-30644.5,-31342,-32009.5,-32645,-33247,-33814.5,-34346,-34839.5,-35295,-35710,-36084.5,-36417.5,-36707.5,-36954,-37156.5,-37315,-37428,-37496,37519,37496,37428,37315,37156.5,36954,36707.5,36417.5,36084.5,35710,35295,34839.5,34346,33814.5,33247,32645,32009.5,31342,30644.5,29919,29166.5,28389,27589,26767,25926.5,25068.5,24195,23308.5,22410.5,21503,20588,19668,18744.5,17820,16895.5,15973.5,15056,14144.5,13241,12347,11464.5,10594.5,9739,8899.5,8077.5,7274,6490,5727.5,4987.5,4270,3577,2909,2266.5,1650,1061,499,-35,-541,-1018.5,-1467.5,-1888,-2280.5,-2644,-2979.5,3287,3567,3820,4046,4246,4420,4569.5,4694.5,4796,4875,4931.5,4967.5,4983,4979.5,4958,4919,4863.5,4792.5,4708,4609.5,4499,4377.5,4245.5,4104.5,3955,3798.5,3635.5,3467.5,3294.5,3118.5,2939.5,2758.5,2576.5,2394,2212.5,2031.5,1852.5,1675.5,1502,1331.5,1165,1003,846,694,547.5,407,272.5,144,22.5,-92.5,-201,-302.5,-397,-485,-565.5,-640,-707,-767.5,-822,-869.5,-911,-946.5,-976,-1e3,1018.5,1031.5,1040,1043.5,1042.5,1037.5,1028.5,1016,1000.5,981,959.5,935,908.5,879.5,849,817,783.5,749,714,678,641.5,605,568.5,532,495.5,459.5,424,389.5,355.5,322.5,290.5,259.5,229.5,200.5,173.5,147,122,98.5,76.5,55.5,36,18,1,-14.5,-28.5,-41.5,-53,-63.5,-73,-81.5,-88.5,-94.5,-100,-104,-107.5,-110.5,-112,-113.5,-114,-114,-113.5,-112.5,-111,-109,106.5,104,101,98,95,91.5,88,84.5,80.5,77,73.5,69.5,66,62.5,58.5,55.5,52,48.5,45.5,42.5,39.5,36.5,34,31.5,29,26.5,24.5,22.5,20.5,19,17.5,15.5,14.5,13,12,10.5,9.5,8.5,8,7,6.5,5.5,5,4.5,4,3.5,3.5,3,2.5,2.5,2,2,1.5,1.5,1,1,1,1,.5,.5,.5,.5,.5,.5]);MP2.QUANT_LUT_STEP_1=[[0,0,1,1,1,2,2,2,2,2,2,2,2,2],[0,0,0,0,0,0,1,1,1,2,2,2,2,2]];MP2.QUANT_TAB={A:27|64,B:30|64,C:8,D:12};MP2.QUANT_LUT_STEP_2=[[MP2.QUANT_TAB.C,MP2.QUANT_TAB.C,MP2.QUANT_TAB.D],[MP2.QUANT_TAB.A,MP2.QUANT_TAB.A,MP2.QUANT_TAB.A],[MP2.QUANT_TAB.B,MP2.QUANT_TAB.A,MP2.QUANT_TAB.B]];MP2.QUANT_LUT_STEP_3=[[68,68,52,52,52,52,52,52,52,52,52,52],[67,67,67,66,66,66,66,66,66,66,66,49,49,49,49,49,49,49,49,49,49,49,49,32,32,32,32,32,32,32],[69,69,69,69,52,52,52,52,52,52,52,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36]];MP2.QUANT_LUT_STEP4=[[0,1,2,17],[0,1,2,3,4,5,6,17],[0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,17],[0,1,3,5,6,7,8,9,10,11,12,13,14,15,16,17],[0,1,2,4,5,6,7,8,9,10,11,12,13,14,15,17],[0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15]];MP2.QUANT_TAB=[{levels:3,group:1,bits:5},{levels:5,group:1,bits:7},{levels:7,group:0,bits:3},{levels:9,group:1,bits:10},{levels:15,group:0,bits:4},{levels:31,group:0,bits:5},{levels:63,group:0,bits:6},{levels:127,group:0,bits:7},{levels:255,group:0,bits:8},{levels:511,group:0,bits:9},{levels:1023,group:0,bits:10},{levels:2047,group:0,bits:11},{levels:4095,group:0,bits:12},{levels:8191,group:0,bits:13},{levels:16383,group:0,bits:14},{levels:32767,group:0,bits:15},{levels:65535,group:0,bits:16}];return MP2}();JSMpeg.Renderer.WebGL=function(){"use strict";var WebGLRenderer=function(options){this.canvas=options.canvas||document.createElement("canvas");this.width=this.canvas.width;this.height=this.canvas.height;this.enabled=true;var contextCreateOptions={preserveDrawingBuffer:!!options.preserveDrawingBuffer,alpha:false,depth:false,stencil:false,antialias:false};this.gl=this.canvas.getContext("webgl",contextCreateOptions)||this.canvas.getContext("experimental-webgl",contextCreateOptions);if(!this.gl){throw new Error("Failed to get WebGL Context")}var gl=this.gl;var vertexAttr=null;this.vertexBuffer=gl.createBuffer();var vertexCoords=new Float32Array([0,0,0,1,1,0,1,1]);gl.bindBuffer(gl.ARRAY_BUFFER,this.vertexBuffer);gl.bufferData(gl.ARRAY_BUFFER,vertexCoords,gl.STATIC_DRAW);this.program=this.createProgram(WebGLRenderer.SHADER.VERTEX_IDENTITY,WebGLRenderer.SHADER.FRAGMENT_YCRCB_TO_RGBA);vertexAttr=gl.getAttribLocation(this.program,"vertex");gl.enableVertexAttribArray(vertexAttr);gl.vertexAttribPointer(vertexAttr,2,gl.FLOAT,false,0,0);this.textureY=this.createTexture(0,"textureY");this.textureCb=this.createTexture(1,"textureCb");this.textureCr=this.createTexture(2,"textureCr");this.loadingProgram=this.createProgram(WebGLRenderer.SHADER.VERTEX_IDENTITY,WebGLRenderer.SHADER.FRAGMENT_LOADING);vertexAttr=gl.getAttribLocation(this.loadingProgram,"vertex");gl.enableVertexAttribArray(vertexAttr);gl.vertexAttribPointer(vertexAttr,2,gl.FLOAT,false,0,0);this.shouldCreateUnclampedViews=!this.allowsClampedTextureData()};WebGLRenderer.prototype.destroy=function(){var gl=this.gl;gl.deleteTexture(this.textureY);gl.deleteTexture(this.textureCb);gl.deleteTexture(this.textureCr);gl.deleteProgram(this.program);gl.deleteProgram(this.loadingProgram);gl.deleteBuffer(this.vertexBuffer)};WebGLRenderer.prototype.resize=function(width,height){this.width=width|0;this.height=height|0;this.canvas.width=this.width;this.canvas.height=this.height;this.gl.useProgram(this.program);this.gl.viewport(0,0,this.width,this.height)};WebGLRenderer.prototype.createTexture=function(index,name){var gl=this.gl;var texture=gl.createTexture();gl.bindTexture(gl.TEXTURE_2D,texture);gl.texParameteri(gl.TEXTURE_2D,gl.TEXTURE_MAG_FILTER,gl.LINEAR);gl.texParameteri(gl.TEXTURE_2D,gl.TEXTURE_MIN_FILTER,gl.LINEAR);gl.texParameteri(gl.TEXTURE_2D,gl.TEXTURE_WRAP_S,gl.CLAMP_TO_EDGE);gl.texParameteri(gl.TEXTURE_2D,gl.TEXTURE_WRAP_T,gl.CLAMP_TO_EDGE);gl.uniform1i(gl.getUniformLocation(this.program,name),index);return texture};WebGLRenderer.prototype.createProgram=function(vsh,fsh){var gl=this.gl;var program=gl.createProgram();gl.attachShader(program,this.compileShader(gl.VERTEX_SHADER,vsh));gl.attachShader(program,this.compileShader(gl.FRAGMENT_SHADER,fsh));gl.linkProgram(program);gl.useProgram(program);return program};WebGLRenderer.prototype.compileShader=function(type,source){var gl=this.gl;var shader=gl.createShader(type);gl.shaderSource(shader,source);gl.compileShader(shader);if(!gl.getShaderParameter(shader,gl.COMPILE_STATUS)){throw new Error(gl.getShaderInfoLog(shader))}return shader};WebGLRenderer.prototype.allowsClampedTextureData=function(){var gl=this.gl;var texture=gl.createTexture();gl.bindTexture(gl.TEXTURE_2D,texture);gl.texImage2D(gl.TEXTURE_2D,0,gl.LUMINANCE,1,1,0,gl.LUMINANCE,gl.UNSIGNED_BYTE,new Uint8ClampedArray([0]));return gl.getError()===0};WebGLRenderer.prototype.renderProgress=function(progress){var gl=this.gl;gl.useProgram(this.loadingProgram);var loc=gl.getUniformLocation(this.loadingProgram,"progress");gl.uniform1f(loc,progress);gl.drawArrays(gl.TRIANGLE_STRIP,0,4)};WebGLRenderer.prototype.render=function(y,cb,cr){if(!this.enabled){return}var gl=this.gl;var w=this.width+15>>4<<4,h=this.height,w2=w>>1,h2=h>>1;if(this.shouldCreateUnclampedViews){y=new Uint8Array(y.buffer),cb=new Uint8Array(cb.buffer),cr=new Uint8Array(cr.buffer)}gl.useProgram(this.program);this.updateTexture(gl.TEXTURE0,this.textureY,w,h,y);this.updateTexture(gl.TEXTURE1,this.textureCb,w2,h2,cb);this.updateTexture(gl.TEXTURE2,this.textureCr,w2,h2,cr);gl.drawArrays(gl.TRIANGLE_STRIP,0,4)};WebGLRenderer.prototype.updateTexture=function(unit,texture,w,h,data){var gl=this.gl;gl.activeTexture(unit);gl.bindTexture(gl.TEXTURE_2D,texture);gl.texImage2D(gl.TEXTURE_2D,0,gl.LUMINANCE,w,h,0,gl.LUMINANCE,gl.UNSIGNED_BYTE,data)};WebGLRenderer.IsSupported=function(){try{if(!window.WebGLRenderingContext){return false}var canvas=document.createElement("canvas");return!!(canvas.getContext("webgl")||canvas.getContext("experimental-webgl"))}catch(err){return false}};WebGLRenderer.SHADER={FRAGMENT_YCRCB_TO_RGBA:["precision mediump float;","uniform sampler2D textureY;","uniform sampler2D textureCb;","uniform sampler2D textureCr;","varying vec2 texCoord;","mat4 rec601 = mat4(","1.16438,  0.00000,  1.59603, -0.87079,","1.16438, -0.39176, -0.81297,  0.52959,","1.16438,  2.01723,  0.00000, -1.08139,","0, 0, 0, 1",");","void main() {","float y = texture2D(textureY, texCoord).r;","float cb = texture2D(textureCb, texCoord).r;","float cr = texture2D(textureCr, texCoord).r;","gl_FragColor = vec4(y, cr, cb, 1.0) * rec601;","}"].join("\n"),FRAGMENT_LOADING:["precision mediump float;","uniform float progress;","varying vec2 texCoord;","void main() {","float c = ceil(progress-(1.0-texCoord.y));","gl_FragColor = vec4(c,c,c,1);","}"].join("\n"),VERTEX_IDENTITY:["attribute vec2 vertex;","varying vec2 texCoord;","void main() {","texCoord = vertex;","gl_Position = vec4((vertex * 2.0 - 1.0) * vec2(1, -1), 0.0, 1.0);","}"].join("\n")};return WebGLRenderer}();JSMpeg.Renderer.Canvas2D=function(){"use strict";var CanvasRenderer=function(options){this.canvas=options.canvas||document.createElement("canvas");this.width=this.canvas.width;this.height=this.canvas.height;this.enabled=true;this.context=this.canvas.getContext("2d")};CanvasRenderer.prototype.destroy=function(){};CanvasRenderer.prototype.resize=function(width,height){this.width=width|0;this.height=height|0;this.canvas.width=this.width;this.canvas.height=this.height;this.imageData=this.context.getImageData(0,0,this.width,this.height);JSMpeg.Fill(this.imageData.data,255)};CanvasRenderer.prototype.renderProgress=function(progress){var w=this.canvas.width,h=this.canvas.height,ctx=this.context;ctx.fillStyle="#222";ctx.fillRect(0,0,w,h);ctx.fillStyle="#fff";ctx.fillRect(0,h-h*progress,w,h*progress)};CanvasRenderer.prototype.render=function(y,cb,cr){this.YCbCrToRGBA(y,cb,cr,this.imageData.data);this.context.putImageData(this.imageData,0,0)};CanvasRenderer.prototype.YCbCrToRGBA=function(y,cb,cr,rgba){if(!this.enabled){return}var w=this.width+15>>4<<4,w2=w>>1;var yIndex1=0,yIndex2=w,yNext2Lines=w+(w-this.width);var cIndex=0,cNextLine=w2-(this.width>>1);var rgbaIndex1=0,rgbaIndex2=this.width*4,rgbaNext2Lines=this.width*4;var cols=this.width>>1,rows=this.height>>1;var ccb,ccr,r,g,b;for(var row=0;row<rows;row++){for(var col=0;col<cols;col++){ccb=cb[cIndex];ccr=cr[cIndex];cIndex++;r=ccb+(ccb*103>>8)-179;g=(ccr*88>>8)-44+(ccb*183>>8)-91;b=ccr+(ccr*198>>8)-227;var y1=y[yIndex1++];var y2=y[yIndex1++];rgba[rgbaIndex1]=y1+r;rgba[rgbaIndex1+1]=y1-g;rgba[rgbaIndex1+2]=y1+b;rgba[rgbaIndex1+4]=y2+r;rgba[rgbaIndex1+5]=y2-g;rgba[rgbaIndex1+6]=y2+b;rgbaIndex1+=8;var y3=y[yIndex2++];var y4=y[yIndex2++];rgba[rgbaIndex2]=y3+r;rgba[rgbaIndex2+1]=y3-g;rgba[rgbaIndex2+2]=y3+b;rgba[rgbaIndex2+4]=y4+r;rgba[rgbaIndex2+5]=y4-g;rgba[rgbaIndex2+6]=y4+b;rgbaIndex2+=8}yIndex1+=yNext2Lines;yIndex2+=yNext2Lines;rgbaIndex1+=rgbaNext2Lines;rgbaIndex2+=rgbaNext2Lines;cIndex+=cNextLine}};return CanvasRenderer}();JSMpeg.AudioOutput.WebAudio=function(){"use strict";var WebAudioOut=function(options){this.context=WebAudioOut.CachedContext=WebAudioOut.CachedContext||new(window.AudioContext||window.webkitAudioContext);this.gain=this.context.createGain();this.destination=this.gain;this.gain.connect(this.context.destination);this.context._connections=(this.context._connections||0)+1;this.startTime=0;this.buffer=null;this.wallclockStartTime=0;this.volume=1;this.enabled=true;this.unlocked=!WebAudioOut.NeedsUnlocking();Object.defineProperty(this,"enqueuedTime",{get:this.getEnqueuedTime})};WebAudioOut.prototype.destroy=function(){this.gain.disconnect();this.context._connections--;if(this.context._connections===0){this.context.close();WebAudioOut.CachedContext=null}};WebAudioOut.prototype.play=function(sampleRate,left,right){if(!this.enabled){return}if(!this.unlocked){var ts=JSMpeg.Now();if(this.wallclockStartTime<ts){this.wallclockStartTime=ts}this.wallclockStartTime+=left.length/sampleRate;return}this.gain.gain.value=this.volume;var buffer=this.context.createBuffer(2,left.length,sampleRate);buffer.getChannelData(0).set(left);buffer.getChannelData(1).set(right);var source=this.context.createBufferSource();source.buffer=buffer;source.connect(this.destination);var now=this.context.currentTime;var duration=buffer.duration;if(this.startTime<now){this.startTime=now;this.wallclockStartTime=JSMpeg.Now()}source.start(this.startTime);this.startTime+=duration;this.wallclockStartTime+=duration};WebAudioOut.prototype.stop=function(){this.gain.gain.value=0};WebAudioOut.prototype.getEnqueuedTime=function(){return Math.max(this.wallclockStartTime-JSMpeg.Now(),0)};WebAudioOut.prototype.resetEnqueuedTime=function(){this.startTime=this.context.currentTime;this.wallclockStartTime=JSMpeg.Now()};WebAudioOut.prototype.unlock=function(callback){if(this.unlocked){if(callback){callback()}return}this.unlockCallback=callback;var buffer=this.context.createBuffer(1,1,22050);var source=this.context.createBufferSource();source.buffer=buffer;source.connect(this.destination);source.start(0);setTimeout(this.checkIfUnlocked.bind(this,source,0),0)};WebAudioOut.prototype.checkIfUnlocked=function(source,attempt){if(source.playbackState===source.PLAYING_STATE||source.playbackState===source.FINISHED_STATE){this.unlocked=true;if(this.unlockCallback){this.unlockCallback();this.unlockCallback=null}}else if(attempt<10){setTimeout(this.checkIfUnlocked.bind(this,source,attempt+1),100)}};WebAudioOut.NeedsUnlocking=function(){return/iPhone|iPad|iPod/i.test(navigator.userAgent)};WebAudioOut.IsSupported=function(){return window.AudioContext||window.webkitAudioContext};WebAudioOut.CachedContext=null;return WebAudioOut}();