jsmpeg.min.js

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(){for(var t=document.querySelectorAll(".jsmpeg"),e=0;e<t.length;e++)new JSMpeg.VideoElement(t[e])},Fill:function(t,e){if(t.fill)t.fill(e);else for(var i=0;i<t.length;i++)t[i]=e}};"complete"===document.readyState?JSMpeg.CreateVideoElements():document.addEventListener("DOMContentLoaded",JSMpeg.CreateVideoElements),"undefined"!=typeof module&&void 0!==module.exports?module.exports=JSMpeg:window.JSMpeg=JSMpeg,JSMpeg.VideoElement=function(){"use strict";var t=function(e){var i=e.dataset.url;if(!i)throw"VideoElement has no `data-url` attribute";var s=function(t,e){for(var i in e)t.style[i]=e[i]};this.container=e,s(this.container,{display:"inline-block",position:"relative",minWidth:"80px",minHeight:"80px"}),this.canvas=document.createElement("canvas"),this.canvas.width=960,this.canvas.height=540,s(this.canvas,{display:"block",width:"100%"}),this.container.appendChild(this.canvas),this.playButton=document.createElement("div"),this.playButton.innerHTML=t.PLAY_BUTTON,s(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 r={canvas:this.canvas};for(var o in e.dataset)try{r[o]=JSON.parse(e.dataset[o])}catch(t){r[o]=e.dataset[o]}if(this.player=new JSMpeg.Player(i,r),e.playerInstance=this.player,!r.poster||r.autoplay||this.player.options.streaming||(r.decodeFirstFrame=!1,this.poster=new Image,this.poster.src=r.poster,this.poster.addEventListener("load",this.posterLoaded),s(this.poster,{display:"block",zIndex:1,position:"absolute",top:0,left:0,bottom:0,right:0}),this.container.appendChild(this.poster)),this.player.options.streaming||this.container.addEventListener("click",this.onClick.bind(this)),(r.autoplay||this.player.options.streaming)&&(this.playButton.style.display="none"),this.player.audioOut&&!this.player.audioOut.unlocked){var n=this.container;(r.autoplay||this.player.options.streaming)&&(this.unmuteButton=document.createElement("div"),this.unmuteButton.innerHTML=t.UNMUTE_BUTTON,s(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),n=this.unmuteButton),this.unlockAudioBound=this.onUnlockAudio.bind(this,n),n.addEventListener("touchstart",this.unlockAudioBound,!1),n.addEventListener("click",this.unlockAudioBound,!0)}};return t.prototype.onUnlockAudio=function(t,e){this.unmuteButton&&(e.preventDefault(),e.stopPropagation()),this.player.audioOut.unlock(function(){this.unmuteButton&&(this.unmuteButton.style.display="none"),t.removeEventListener("touchstart",this.unlockAudioBound),t.removeEventListener("click",this.unlockAudioBound)}.bind(this))},t.prototype.onClick=function(t){this.player.isPlaying?(this.player.pause(),this.playButton.style.display="block"):(this.player.play(),this.playButton.style.display="none",this.poster&&(this.poster.style.display="none"))},t.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>',t.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>',t}(),JSMpeg.Player=function(){"use strict";var t=function(t,e){if(this.options=e||{},e.source?(this.source=new e.source(t,e),e.streaming=!!this.source.streaming):t.match(/^wss?:\/\//)?(this.source=new JSMpeg.Source.WebSocket(t,e),this.source.onDataLoaded=this.onDataLoaded,e.streaming=!0):!1!==e.progressive?(this.source=new JSMpeg.Source.AjaxProgressive(t,e),e.streaming=!1):(this.source=new JSMpeg.Source.Ajax(t,e),e.streaming=!1),this.maxAudioLag=e.maxAudioLag||.25,this.loop=!1!==e.loop,this.autoplay=!!e.autoplay||e.streaming,this.playingStateChange=e.playingStateChange,this.dataLoaded=e.dataLoaded,this.demuxer=new JSMpeg.Demuxer.TS(e),this.source.connect(this.demuxer),!1!==e.video&&(this.video=new JSMpeg.Decoder.MPEG1Video(e),this.renderer=!e.disableGl&&JSMpeg.Renderer.WebGL.IsSupported()?new JSMpeg.Renderer.WebGL(e):new JSMpeg.Renderer.Canvas2D(e),this.demuxer.connect(JSMpeg.Demuxer.TS.STREAM.VIDEO_1,this.video),this.video.connect(this.renderer)),!1!==e.audio&&JSMpeg.AudioOutput.WebAudio.IsSupported()&&(this.audio=new JSMpeg.Decoder.MP2Audio(e),this.audioOut=new JSMpeg.AudioOutput.WebAudio(e),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=!1,!1!==e.pauseWhenHidden&&document.addEventListener("visibilitychange",this.showHide.bind(this)),e.poster&&this.renderer.canvas){var i=this.renderer.canvas.parentElement;i?(this.poster=document.createElement("div"),this.poster&&(this.poster.style.display="block",this.poster.style.zIndex=2,this.poster.style.position="absolute",this.poster.style.width=this.renderer.canvas.width,this.poster.style.height=this.renderer.canvas.height,this.poster.style.top=0,this.poster.style.left=0,this.poster.style.background="url('"+e.poster+"') center center no-repeat",this.poster.className="video_loader",this.source.player=this,i.appendChild(this.poster))):console.warn("Could not get parent element for poster")}this.source.start(),this.autoplay&&this.play()};return t.prototype.showHide=function(t){"hidden"===document.visibilityState?(this.unpauseOnShow=this.wantsToPlay,this.pause()):this.unpauseOnShow&&this.play()},t.prototype.play=function(t){this.animationId=requestAnimationFrame(this.update.bind(this)),this.wantsToPlay=!0},t.prototype.pause=function(t){cancelAnimationFrame(this.animationId),this.wantsToPlay=!1,this.isPlaying=!1,this.OnIsPlaying(!1),this.audio&&this.audio.canPlay&&(this.audioOut.stop(),this.seek(this.currentTime))},t.prototype.getVolume=function(){return this.audioOut?this.audioOut.volume:0},t.prototype.setVolume=function(t){this.audioOut&&(this.audioOut.volume=t)},t.prototype.stop=function(t){this.pause(),this.seek(0),this.video&&!1!==this.options.decodeFirstFrame&&this.video.decode()},t.prototype.destroy=function(){this.pause(),this.source.destroy(),this.renderer.destroy(),this.audioOut.destroy()},t.prototype.seek=function(t){var e=this.audio&&this.audio.canPlay?this.audio.startTime:this.video.startTime;this.video&&this.video.seek(t+e),this.audio&&this.audio.seek(t+e),this.startTime=JSMpeg.Now()-t},t.prototype.getCurrentTime=function(){return this.audio&&this.audio.canPlay?this.audio.currentTime-this.audio.startTime:this.video.currentTime-this.video.startTime},t.prototype.setCurrentTime=function(t){this.seek(t)},t.prototype.update=function(){this.animationId=requestAnimationFrame(this.update.bind(this)),this.source.established?(this.isPlaying||(this.isPlaying=!0,this.OnIsPlaying(!0),this.startTime=JSMpeg.Now()-this.currentTime),this.options.streaming?this.updateForStreaming():this.updateForStaticFile()):this.renderer&&this.renderer.renderProgress(this.source.progress)},t.prototype.updateForStreaming=function(){if(this.video&&this.video.decode(),this.audio){var t=!1;do{this.audioOut.enqueuedTime>this.maxAudioLag&&(this.audioOut.resetEnqueuedTime(),this.audioOut.enabled=!1),t=this.audio.decode()}while(t);this.audioOut.enabled=!0}},t.prototype.OnIsPlaying=function(t){this.playingStateChange&&this.playingStateChange(t)},t.prototype.onDataLoaded=function(t){if(t){if(t.poster){for(var e=document.getElementsByClassName("video_loader");e.length>0;)console.log("remove ",e[0]),e[0].parentNode.removeChild(e[0]);t.poster=null}else console.log("no poster");t.dataLoaded&&t.dataLoaded()}},t.prototype.updateForStaticFile=function(){var t=!1,e=0;if(this.audio&&this.audio.canPlay){for(;!t&&this.audio.decodedTime-this.audio.currentTime<.25;)t=!this.audio.decode();this.video&&this.video.currentTime<this.audio.currentTime&&(t=!this.video.decode()),e=this.demuxer.currentTime-this.audio.currentTime}else if(this.video){var i=JSMpeg.Now()-this.startTime+this.video.startTime,s=i-this.video.currentTime,r=1/this.video.frameRate;this.video&&s>0&&(s>2*r&&(this.startTime+=s),t=!this.video.decode()),e=this.demuxer.currentTime-i}this.source.resume(e),t&&this.source.completed&&(this.loop?this.seek(0):this.pause())},t}(),JSMpeg.BitBuffer=function(){"use strict";var t=function(e,i){"object"==typeof e?(this.bytes=e instanceof Uint8Array?e:new Uint8Array(e),this.byteLength=this.bytes.length):(this.bytes=new Uint8Array(e||1048576),this.byteLength=0),this.mode=i||t.MODE.EXPAND,this.index=0};return t.prototype.resize=function(t){var e=new Uint8Array(t);0!==this.byteLength&&(this.byteLength=Math.min(this.byteLength,t),e.set(this.bytes,0,this.byteLength)),this.bytes=e,this.index=Math.min(this.index,this.byteLength<<3)},t.prototype.evict=function(t){var e=this.index>>3,i=this.bytes.length-this.byteLength;if(this.index===this.byteLength<<3||t>i+e)return this.byteLength=0,void(this.index=0);0!==e&&(this.bytes.copyWithin?this.bytes.copyWithin(0,e,this.byteLength):this.bytes.set(this.bytes.subarray(e,this.byteLength)),this.byteLength=this.byteLength-e,this.index-=e<<3)},t.prototype.write=function(e){var i="object"==typeof e[0],s=0,r=this.bytes.length-this.byteLength;if(i){s=0;for(var o=0;o<e.length;o++)s+=e[o].byteLength}else s=e.byteLength;if(s>r)if(this.mode===t.MODE.EXPAND){var n=Math.max(2*this.bytes.length,s-r);this.resize(n)}else this.evict(s);if(i)for(o=0;o<e.length;o++)this.appendSingleBuffer(e[o]);else this.appendSingleBuffer(e)},t.prototype.appendSingleBuffer=function(t){t=t instanceof Uint8Array?t:new Uint8Array(t),this.bytes.set(t,this.byteLength),this.byteLength+=t.length},t.prototype.findNextStartCode=function(){for(var t=this.index+7>>3;t<this.byteLength;t++)if(0==this.bytes[t]&&0==this.bytes[t+1]&&1==this.bytes[t+2])return this.index=t+4<<3,this.bytes[t+3];return this.index=this.byteLength<<3,-1},t.prototype.findStartCode=function(t){for(var e=0;;)if((e=this.findNextStartCode())===t||-1===e)return e;return-1},t.prototype.nextBytesAreStartCode=function(){var t=this.index+7>>3;return t>=this.byteLength||0==this.bytes[t]&&0==this.bytes[t+1]&&1==this.bytes[t+2]},t.prototype.peek=function(t){for(var e=this.index,i=0;t;){var s=this.bytes[e>>3],r=8-(7&e),o=r<t?r:t,n=r-o;i=i<<o|(s&255>>8-o<<n)>>n,e+=o,t-=o}return i},t.prototype.read=function(t){var e=this.peek(t);return this.index+=t,e},t.prototype.skip=function(t){return this.index+=t},t.prototype.rewind=function(t){this.index=Math.max(this.index-t,0)},t.prototype.has=function(t){return(this.byteLength<<3)-this.index>=t},t.MODE={EVICT:1,EXPAND:2},t}(),JSMpeg.Source.Ajax=function(){"use strict";var t=function(t,e){this.url=t,this.destination=null,this.request=null,this.completed=!1,this.established=!1,this.progress=0};return t.prototype.connect=function(t){this.destination=t},t.prototype.start=function(){this.request=new XMLHttpRequest,this.request.onreadystatechange=function(){this.request.readyState===this.request.DONE&&200===this.request.status&&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()},t.prototype.resume=function(t){},t.prototype.destroy=function(){this.request.abort()},t.prototype.onProgress=function(t){this.progress=t.loaded/t.total},t.prototype.onLoad=function(t){this.established=!0,this.completed=!0,this.progress=1,this.destination&&this.destination.write(t)},t}(),JSMpeg.Source.AjaxProgressive=function(){"use strict";var t=function(t,e){this.url=t,this.destination=null,this.request=null,this.completed=!1,this.established=!1,this.progress=0,this.fileSize=0,this.loadedSize=0,this.chunkSize=e.chunkSize||1048576,this.isLoading=!1,this.loadStartTime=0,this.throttled=!1!==e.throttled,this.aborted=!1};return t.prototype.connect=function(t){this.destination=t},t.prototype.start=function(){this.request=new XMLHttpRequest,this.request.onreadystatechange=function(){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()},t.prototype.resume=function(t){!this.isLoading&&this.throttled&&(8*this.loadTime+2>t&&this.loadNextChunk())},t.prototype.destroy=function(){this.request.abort(),this.aborted=!0},t.prototype.loadNextChunk=function(){var t=this.loadedSize,e=Math.min(this.loadedSize+this.chunkSize-1,this.fileSize-1);t>=this.fileSize||this.aborted?this.completed=!0:(this.isLoading=!0,this.loadStartTime=JSMpeg.Now(),this.request=new XMLHttpRequest,this.request.onreadystatechange=function(){this.request.readyState===this.request.DONE&&this.request.status>=200&&this.request.status<300?this.onChunkLoad(this.request.response):this.request.readyState===this.request.DONE&&this.loadFails++<3&&this.loadNextChunk()}.bind(this),0===t&&(this.request.onprogress=this.onProgress.bind(this)),this.request.open("GET",this.url+"?"+t+"-"+e),this.request.setRequestHeader("Range","bytes="+t+"-"+e),this.request.responseType="arraybuffer",this.request.send())},t.prototype.onProgress=function(t){this.progress=t.loaded/t.total},t.prototype.onChunkLoad=function(t){this.established=!0,this.progress=1,this.loadedSize+=t.byteLength,this.loadFails=0,this.isLoading=!1,this.destination&&this.destination.write(t),this.loadTime=JSMpeg.Now()-this.loadStartTime,this.throttled||this.loadNextChunk()},t}(),JSMpeg.Source.WebSocket=function(){"use strict";var t=function(t,e){this.url=t,this.options=e,this.socket=null,this.hasData=!1,this.callbacks={connect:[],data:[]},this.destination=null,this.reconnectInterval=void 0!==e.reconnectInterval?e.reconnectInterval:5,this.shouldAttemptReconnect=!!this.reconnectInterval,this.onDataLoaded=null,this.player=null,this.completed=!1,this.established=!1,this.progress=0,this.reconnectTimeoutId=0};return t.prototype.connect=function(t){this.destination=t},t.prototype.destroy=function(){clearTimeout(this.reconnectTimeoutId),this.shouldAttemptReconnect=!1,this.socket.close()},t.prototype.start=function(){this.shouldAttemptReconnect=!!this.reconnectInterval,this.progress=0,this.established=!1,this.socket=new WebSocket(this.url,this.options.protocols||null),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)},t.prototype.resume=function(t){},t.prototype.onOpen=function(){this.progress=1,this.established=!0},t.prototype.onClose=function(){this.shouldAttemptReconnect&&(clearTimeout(this.reconnectTimeoutId),this.reconnectTimeoutId=setTimeout(function(){this.start()}.bind(this),1e3*this.reconnectInterval))},t.prototype.onMessage=function(t){this.destination&&(this.hasData||(this.onDataLoaded&&this.onDataLoaded(this.player),this.hasData=!0),this.destination.write(t.data))},t}(),JSMpeg.Demuxer.TS=function(){"use strict";var t=function(t){this.bits=null,this.leftoverBytes=null,this.guessVideoFrameEnd=!0,this.pidsToStreamIds={},this.pesPacketInfo={},this.startTime=0,this.currentTime=0};return t.prototype.connect=function(t,e){this.pesPacketInfo[t]={destination:e,currentLength:0,totalLength:0,pts:0,buffers:[]}},t.prototype.write=function(t){if(this.leftoverBytes){var e=t.byteLength+this.leftoverBytes.byteLength;this.bits=new JSMpeg.BitBuffer(e),this.bits.write([this.leftoverBytes,t])}else this.bits=new JSMpeg.BitBuffer(t);for(;this.bits.has(1504)&&this.parsePacket(););var i=this.bits.byteLength-(this.bits.index>>3);this.leftoverBytes=i>0?this.bits.bytes.subarray(this.bits.index>>3):null},t.prototype.parsePacket=function(){if(71!==this.bits.read(8)&&!this.resync())return!1;var t=187+(this.bits.index>>3),e=(this.bits.read(1),this.bits.read(1)),i=(this.bits.read(1),this.bits.read(13)),s=(this.bits.read(2),this.bits.read(2)),r=(this.bits.read(4),this.pidsToStreamIds[i]);e&&r&&((m=this.pesPacketInfo[r])&&m.currentLength&&this.packetComplete(m));if(1&s){if(2&s){var o=this.bits.read(8);this.bits.skip(o<<3)}if(e&&this.bits.nextBytesAreStartCode()){this.bits.skip(24),r=this.bits.read(8),this.pidsToStreamIds[i]=r;var n=this.bits.read(16);this.bits.skip(8);var a=this.bits.read(2);this.bits.skip(6);var h=this.bits.read(8),d=this.bits.index+(h<<3);if(m=this.pesPacketInfo[r]){var c=0;if(2&a){this.bits.skip(4);var u=this.bits.read(3);this.bits.skip(1);var l=this.bits.read(15);this.bits.skip(1);var p=this.bits.read(15);this.bits.skip(1),c=(1073741824*u+32768*l+p)/9e4,this.currentTime=c,-1===this.startTime&&(this.startTime=c)}var f=n?n-h-3:0;this.packetStart(m,c,f)}this.bits.index=d}var m;if(r)if(m=this.pesPacketInfo[r]){var b=this.bits.index>>3,y=this.packetAddData(m,b,t),T=!e&&2&s;(y||this.guessVideoFrameEnd&&T)&&this.packetComplete(m)}}return this.bits.index=t<<3,!0},t.prototype.resync=function(){if(!this.bits.has(9024))return!1;for(var t=this.bits.index>>3,e=0;e<187;e++)if(71===this.bits.bytes[t+e]){for(var i=!0,s=1;s<5;s++)if(71!==this.bits.bytes[t+e+188*s]){i=!1;break}if(i)return this.bits.index=t+e+1<<3,!0}return console.warn("JSMpeg: Possible garbage data. Skipping."),this.bits.skip(1496),!1},t.prototype.packetStart=function(t,e,i){t.totalLength=i,t.currentLength=0,t.pts=e},t.prototype.packetAddData=function(t,e,i){return t.buffers.push(this.bits.bytes.subarray(e,i)),t.currentLength+=i-e,0!==t.totalLength&&t.currentLength>=t.totalLength},t.prototype.packetComplete=function(t){t.destination.write(t.pts,t.buffers),t.totalLength=0,t.currentLength=0,t.buffers=[]},t.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},t}(),JSMpeg.Decoder.Base=function(){"use strict";var t=function(t){this.destination=null,this.canPlay=!1,this.collectTimestamps=!t.streaming,this.timestamps=[],this.timestampIndex=0,this.startTime=0,this.decodedTime=0,Object.defineProperty(this,"currentTime",{get:this.getCurrentTime})};return t.prototype.connect=function(t){this.destination=t},t.prototype.write=function(t,e){this.collectTimestamps&&(0===this.timestamps.length&&(this.startTime=t,this.decodedTime=t),this.timestamps.push({index:this.bits.byteLength<<3,time:t})),this.bits.write(e),this.canPlay=!0},t.prototype.seek=function(t){if(this.collectTimestamps){this.timestampIndex=0;for(var e=0;e<this.timestamps.length&&!(this.timestamps[e].time>t);e++)this.timestampIndex=e;var i=this.timestamps[this.timestampIndex];i?(this.bits.index=i.index,this.decodedTime=i.time):(this.bits.index=0,this.decodedTime=this.startTime)}},t.prototype.decode=function(){this.advanceDecodedTime(0)},t.prototype.advanceDecodedTime=function(t){if(this.collectTimestamps){for(var e=-1,i=this.timestampIndex;i<this.timestamps.length&&!(this.timestamps[i].index>this.bits.index);i++)e=i;if(-1!==e&&e!==this.timestampIndex)return this.timestampIndex=e,void(this.decodedTime=this.timestamps[this.timestampIndex].time)}this.decodedTime+=t},t.prototype.getCurrentTime=function(){return this.decodedTime},t}(),JSMpeg.Decoder.MPEG1Video=function(){"use strict";var t=function(t){JSMpeg.Decoder.Base.call(this,t);var e=t.videoBufferSize||524288,i=t.streaming?JSMpeg.BitBuffer.MODE.EVICT:JSMpeg.BitBuffer.MODE.EXPAND;this.bits=new JSMpeg.BitBuffer(e,i),this.customIntraQuantMatrix=new Uint8Array(64),this.customNonIntraQuantMatrix=new Uint8Array(64),this.blockData=new Int32Array(64),this.currentFrame=0,this.decodeFirstFrame=!1!==t.decodeFirstFrame};return(t.prototype=Object.create(JSMpeg.Decoder.Base.prototype)).constructor=t,t.prototype.write=function(e,i){if(JSMpeg.Decoder.Base.prototype.write.call(this,e,i),!this.hasSequenceHeader){if(-1===this.bits.findStartCode(t.START.SEQUENCE))return!1;this.decodeSequenceHeader(),this.decodeFirstFrame&&this.decode()}},t.prototype.decode=function(){if(!this.hasSequenceHeader)return!1;if(-1===this.bits.findStartCode(t.START.PICTURE)){this.bits.byteLength,this.bits.index;return!1}return this.decodePicture(),this.advanceDecodedTime(1/this.frameRate),!0},t.prototype.readHuffman=function(t){var e=0;do{e=t[e+this.bits.read(1)]}while(e>=0&&0!==t[e]);return t[e+2]},t.prototype.frameRate=30,t.prototype.decodeSequenceHeader=function(){var e=this.bits.read(12),i=this.bits.read(12);if(this.bits.skip(4),this.frameRate=t.PICTURE_RATE[this.bits.read(4)],this.bits.skip(30),e===this.width&&i===this.height||(this.width=e,this.height=i,this.initBuffers(),this.destination&&this.destination.resize(e,i)),this.bits.read(1)){for(var s=0;s<64;s++)this.customIntraQuantMatrix[t.ZIG_ZAG[s]]=this.bits.read(8);this.intraQuantMatrix=this.customIntraQuantMatrix}if(this.bits.read(1)){for(s=0;s<64;s++){var r=t.ZIG_ZAG[s];this.customNonIntraQuantMatrix[r]=this.bits.read(8)}this.nonIntraQuantMatrix=this.customNonIntraQuantMatrix}this.hasSequenceHeader=!0},t.prototype.initBuffers=function(){this.intraQuantMatrix=t.DEFAULT_INTRA_QUANT_MATRIX,this.nonIntraQuantMatrix=t.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)},t.prototype.currentY=null,t.prototype.currentCr=null,t.prototype.currentCb=null,t.prototype.pictureType=0,t.prototype.forwardY=null,t.prototype.forwardCr=null,t.prototype.forwardCb=null,t.prototype.fullPelForward=!1,t.prototype.forwardFCode=0,t.prototype.forwardRSize=0,t.prototype.forwardF=0,t.prototype.decodePicture=function(e){if(this.currentFrame++,this.bits.skip(10),this.pictureType=this.bits.read(3),this.bits.skip(16),!(this.pictureType<=0||this.pictureType>=t.PICTURE_TYPE.B)){if(this.pictureType===t.PICTURE_TYPE.PREDICTIVE){if(this.fullPelForward=this.bits.read(1),this.forwardFCode=this.bits.read(3),0===this.forwardFCode)return;this.forwardRSize=this.forwardFCode-1,this.forwardF=1<<this.forwardRSize}var i=0;do{i=this.bits.findNextStartCode()}while(i===t.START.EXTENSION||i===t.START.USER_DATA);for(;i>=t.START.SLICE_FIRST&&i<=t.START.SLICE_LAST;)this.decodeSlice(255&i),i=this.bits.findNextStartCode();if(-1!==i&&this.bits.rewind(32),this.destination&&this.destination.render(this.currentY,this.currentCr,this.currentCb),this.pictureType===t.PICTURE_TYPE.INTRA||this.pictureType===t.PICTURE_TYPE.PREDICTIVE){var s=this.forwardY,r=this.forwardY32,o=this.forwardCr,n=this.forwardCr32,a=this.forwardCb,h=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=s,this.currentY32=r,this.currentCr=o,this.currentCr32=n,this.currentCb=a,this.currentCb32=h}}},t.prototype.quantizerScale=0,t.prototype.sliceBegin=!1,t.prototype.decodeSlice=function(t){for(this.sliceBegin=!0,this.macroblockAddress=(t-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);this.bits.read(1);)this.bits.skip(8);do{this.decodeMacroblock()}while(!this.bits.nextBytesAreStartCode())},t.prototype.macroblockAddress=0,t.prototype.mbRow=0,t.prototype.mbCol=0,t.prototype.macroblockType=0,t.prototype.macroblockIntra=!1,t.prototype.macroblockMotFw=!1,t.prototype.motionFwH=0,t.prototype.motionFwV=0,t.prototype.motionFwHPrev=0,t.prototype.motionFwVPrev=0,t.prototype.decodeMacroblock=function(){for(var e=0,i=this.readHuffman(t.MACROBLOCK_ADDRESS_INCREMENT);34===i;)i=this.readHuffman(t.MACROBLOCK_ADDRESS_INCREMENT);for(;35===i;)e+=33,i=this.readHuffman(t.MACROBLOCK_ADDRESS_INCREMENT);if(e+=i,this.sliceBegin)this.sliceBegin=!1,this.macroblockAddress+=e;else{if(this.macroblockAddress+e>=this.mbSize)return;for(e>1&&(this.dcPredictorY=128,this.dcPredictorCr=128,this.dcPredictorCb=128,this.pictureType===t.PICTURE_TYPE.PREDICTIVE&&(this.motionFwH=this.motionFwHPrev=0,this.motionFwV=this.motionFwVPrev=0));e>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),e--;this.macroblockAddress++}this.mbRow=this.macroblockAddress/this.mbWidth|0,this.mbCol=this.macroblockAddress%this.mbWidth;var s=t.MACROBLOCK_TYPE[this.pictureType];this.macroblockType=this.readHuffman(s),this.macroblockIntra=1&this.macroblockType,this.macroblockMotFw=8&this.macroblockType,0!=(16&this.macroblockType)&&(this.quantizerScale=this.bits.read(5)),this.macroblockIntra?(this.motionFwH=this.motionFwHPrev=0,this.motionFwV=this.motionFwVPrev=0):(this.dcPredictorY=128,this.dcPredictorCr=128,this.dcPredictorCb=128,this.decodeMotionVectors(),this.copyMacroblock(this.motionFwH,this.motionFwV,this.forwardY,this.forwardCr,this.forwardCb));for(var r=0!=(2&this.macroblockType)?this.readHuffman(t.CODE_BLOCK_PATTERN):this.macroblockIntra?63:0,o=0,n=32;o<6;o++)0!=(r&n)&&this.decodeBlock(o),n>>=1},t.prototype.decodeMotionVectors=function(){var e,i,s=0;this.macroblockMotFw?(0!==(e=this.readHuffman(t.MOTION))&&1!==this.forwardF?(s=this.bits.read(this.forwardRSize),i=(Math.abs(e)-1<<this.forwardRSize)+s+1,e<0&&(i=-i)):i=e,this.motionFwHPrev+=i,this.motionFwHPrev>(this.forwardF<<4)-1?this.motionFwHPrev-=this.forwardF<<5:this.motionFwHPrev<-this.forwardF<<4&&(this.motionFwHPrev+=this.forwardF<<5),this.motionFwH=this.motionFwHPrev,this.fullPelForward&&(this.motionFwH<<=1),0!==(e=this.readHuffman(t.MOTION))&&1!==this.forwardF?(s=this.bits.read(this.forwardRSize),i=(Math.abs(e)-1<<this.forwardRSize)+s+1,e<0&&(i=-i)):i=e,this.motionFwVPrev+=i,this.motionFwVPrev>(this.forwardF<<4)-1?this.motionFwVPrev-=this.forwardF<<5:this.motionFwVPrev<-this.forwardF<<4&&(this.motionFwVPrev+=this.forwardF<<5),this.motionFwV=this.motionFwVPrev,this.fullPelForward&&(this.motionFwV<<=1)):this.pictureType===t.PICTURE_TYPE.PREDICTIVE&&(this.motionFwH=this.motionFwHPrev=0,this.motionFwV=this.motionFwVPrev=0)},t.prototype.copyMacroblock=function(t,e,i,s,r){var o,n,a,h,d,c,u,l,p,f,m,b,y,T,g,v,A,w,E,C=this.currentY32,S=this.currentCb32,x=this.currentCr32;if(n=(o=this.codedWidth)-16,a=t>>1,h=e>>1,d=1==(1&t),c=1==(1&e),u=((this.mbRow<<4)+h)*o+(this.mbCol<<4)+a,p=(l=this.mbRow*o+this.mbCol<<2)+(o<<2),d)if(c)for(;l<p;){for(m=i[u]+i[u+o],u++,f=0;f<4;f++)y=m+(b=i[u]+i[u+o])+2>>2&255,y|=(m=i[++u]+i[u+o])+b+2<<6&65280,y|=m+(b=i[++u]+i[u+o])+2<<14&16711680,m=i[++u]+i[u+o],u++,y|=m+b+2<<22&4278190080,C[l++]=y;l+=n>>2,u+=n-1}else for(;l<p;){for(m=i[u++],f=0;f<4;f++)y=m+(b=i[u++])+1>>1&255,y|=(m=i[u++])+b+1<<7&65280,y|=m+(b=i[u++])+1<<15&16711680,y|=(m=i[u++])+b+1<<23&4278190080,C[l++]=y;l+=n>>2,u+=n-1}else if(c)for(;l<p;){for(f=0;f<4;f++)y=i[u]+i[u+o]+1>>1&255,y|=i[++u]+i[u+o]+1<<7&65280,y|=i[++u]+i[u+o]+1<<15&16711680,y|=i[++u]+i[u+o]+1<<23&4278190080,u++,C[l++]=y;l+=n>>2,u+=n}else for(;l<p;){for(f=0;f<4;f++)y=i[u],y|=i[++u]<<8,y|=i[++u]<<16,y|=i[++u]<<24,u++,C[l++]=y;l+=n>>2,u+=n}if(n=(o=this.halfWidth)-8,a=t/2>>1,h=e/2>>1,d=1==(t/2&1),c=1==(e/2&1),u=((this.mbRow<<3)+h)*o+(this.mbCol<<3)+a,p=(l=this.mbRow*o+this.mbCol<<1)+(o<<1),d)if(c)for(;l<p;){for(T=s[u]+s[u+o],A=r[u]+r[u+o],u++,f=0;f<2;f++)v=T+(g=s[u]+s[u+o])+2>>2&255,E=A+(w=r[u]+r[u+o])+2>>2&255,v|=(T=s[++u]+s[u+o])+g+2<<6&65280,E|=(A=r[u]+r[u+o])+w+2<<6&65280,v|=T+(g=s[++u]+s[u+o])+2<<14&16711680,E|=A+(w=r[u]+r[u+o])+2<<14&16711680,T=s[++u]+s[u+o],A=r[u]+r[u+o],u++,v|=T+g+2<<22&4278190080,E|=A+w+2<<22&4278190080,x[l]=v,S[l]=E,l++;l+=n>>2,u+=n-1}else for(;l<p;){for(T=s[u],A=r[u],u++,f=0;f<2;f++)v=T+(g=s[u])+1>>1&255,E=A+(w=r[u++])+1>>1&255,v|=(T=s[u])+g+1<<7&65280,E|=(A=r[u++])+w+1<<7&65280,v|=T+(g=s[u])+1<<15&16711680,E|=A+(w=r[u++])+1<<15&16711680,v|=(T=s[u])+g+1<<23&4278190080,E|=(A=r[u++])+w+1<<23&4278190080,x[l]=v,S[l]=E,l++;l+=n>>2,u+=n-1}else if(c)for(;l<p;){for(f=0;f<2;f++)v=s[u]+s[u+o]+1>>1&255,E=r[u]+r[u+o]+1>>1&255,v|=s[++u]+s[u+o]+1<<7&65280,E|=r[u]+r[u+o]+1<<7&65280,v|=s[++u]+s[u+o]+1<<15&16711680,E|=r[u]+r[u+o]+1<<15&16711680,v|=s[++u]+s[u+o]+1<<23&4278190080,E|=r[u]+r[u+o]+1<<23&4278190080,u++,x[l]=v,S[l]=E,l++;l+=n>>2,u+=n}else for(;l<p;){for(f=0;f<2;f++)v=s[u],E=r[u],v|=s[++u]<<8,E|=r[u]<<8,v|=s[++u]<<16,E|=r[u]<<16,v|=s[++u]<<24,E|=r[u]<<24,u++,x[l]=v,S[l]=E,l++;l+=n>>2,u+=n}},t.prototype.dcPredictorY=0,t.prototype.dcPredictorCr=0,t.prototype.dcPredictorCb=0,t.prototype.blockData=null,t.prototype.decodeBlock=function(e){var i,s=0;if(this.macroblockIntra){var r,o;if(e<4?(r=this.dcPredictorY,o=this.readHuffman(t.DCT_DC_SIZE_LUMINANCE)):(r=4===e?this.dcPredictorCr:this.dcPredictorCb,o=this.readHuffman(t.DCT_DC_SIZE_CHROMINANCE)),o>0){var n=this.bits.read(o);this.blockData[0]=0!=(n&1<<o-1)?r+n:r+(-1<<o|n+1)}else this.blockData[0]=r;e<4?this.dcPredictorY=this.blockData[0]:4===e?this.dcPredictorCr=this.blockData[0]:this.dcPredictorCb=this.blockData[0],this.blockData[0]<<=8,i=this.intraQuantMatrix,s=1}else i=this.nonIntraQuantMatrix;for(var a,h,d,c=0;;){var u=0,l=this.readHuffman(t.DCT_COEFF);if(1===l&&s>0&&0===this.bits.read(1))break;65535===l?(u=this.bits.read(6),0===(c=this.bits.read(8))?c=this.bits.read(8):128===c?c=this.bits.read(8)-256:c>128&&(c-=256)):(u=l>>8,c=255&l,this.bits.read(1)&&(c=-c));var p=t.ZIG_ZAG[s+=u];s++,c<<=1,this.macroblockIntra||(c+=c<0?-1:1),0==(1&(c=c*this.quantizerScale*i[p]>>4))&&(c-=c>0?1:-1),c>2047?c=2047:c<-2048&&(c=-2048),this.blockData[p]=c*t.PREMULTIPLIER_MATRIX[p]}e<4?(a=this.currentY,d=this.codedWidth-8,h=this.mbRow*this.codedWidth+this.mbCol<<4,0!=(1&e)&&(h+=8),0!=(2&e)&&(h+=this.codedWidth<<3)):(a=4===e?this.currentCb:this.currentCr,d=(this.codedWidth>>1)-8,h=(this.mbRow*this.codedWidth<<2)+(this.mbCol<<3)),this.macroblockIntra?1===s?(t.CopyValueToDestination(this.blockData[0]+128>>8,a,h,d),this.blockData[0]=0):(t.IDCT(this.blockData),t.CopyBlockToDestination(this.blockData,a,h,d),JSMpeg.Fill(this.blockData,0)):1===s?(t.AddValueToDestination(this.blockData[0]+128>>8,a,h,d),this.blockData[0]=0):(t.IDCT(this.blockData),t.AddBlockToDestination(this.blockData,a,h,d),JSMpeg.Fill(this.blockData,0)),s=0},t.CopyBlockToDestination=function(t,e,i,s){for(var r=0;r<64;r+=8,i+=s+8)e[i+0]=t[r+0],e[i+1]=t[r+1],e[i+2]=t[r+2],e[i+3]=t[r+3],e[i+4]=t[r+4],e[i+5]=t[r+5],e[i+6]=t[r+6],e[i+7]=t[r+7]},t.AddBlockToDestination=function(t,e,i,s){for(var r=0;r<64;r+=8,i+=s+8)e[i+0]+=t[r+0],e[i+1]+=t[r+1],e[i+2]+=t[r+2],e[i+3]+=t[r+3],e[i+4]+=t[r+4],e[i+5]+=t[r+5],e[i+6]+=t[r+6],e[i+7]+=t[r+7]},t.CopyValueToDestination=function(t,e,i,s){for(var r=0;r<64;r+=8,i+=s+8)e[i+0]=t,e[i+1]=t,e[i+2]=t,e[i+3]=t,e[i+4]=t,e[i+5]=t,e[i+6]=t,e[i+7]=t},t.AddValueToDestination=function(t,e,i,s){for(var r=0;r<64;r+=8,i+=s+8)e[i+0]+=t,e[i+1]+=t,e[i+2]+=t,e[i+3]+=t,e[i+4]+=t,e[i+5]+=t,e[i+6]+=t,e[i+7]+=t},t.IDCT=function(t){for(var e,i,s,r,o,n,a,h,d,c,u,l,p,f,m,b,y,T,g=0;g<8;++g)e=t[32+g],i=t[16+g]+t[48+g],s=t[40+g]-t[24+g],n=t[8+g]+t[56+g],a=t[24+g]+t[40+g],r=t[8+g]-t[56+g],o=n+a,h=t[0+g],d=(p=(473*r-196*s+128>>8)-o)-(362*(n-a)+128>>8),f=(c=h-e)+(u=(362*(t[16+g]-t[48+g])+128>>8)-i),m=(l=h+e)+i,b=c-u,y=l-i,T=-d-(473*s+196*r+128>>8),t[0+g]=o+m,t[8+g]=p+f,t[16+g]=b-d,t[24+g]=y-T,t[32+g]=y+T,t[40+g]=d+b,t[48+g]=f-p,t[56+g]=m-o;for(g=0;g<64;g+=8)e=t[4+g],i=t[2+g]+t[6+g],s=t[5+g]-t[3+g],n=t[1+g]+t[7+g],a=t[3+g]+t[5+g],r=t[1+g]-t[7+g],o=n+a,h=t[0+g],d=(p=(473*r-196*s+128>>8)-o)-(362*(n-a)+128>>8),f=(c=h-e)+(u=(362*(t[2+g]-t[6+g])+128>>8)-i),m=(l=h+e)+i,b=c-u,y=l-i,T=-d-(473*s+196*r+128>>8),t[0+g]=o+m+128>>8,t[1+g]=p+f+128>>8,t[2+g]=b-d+128>>8,t[3+g]=y-T+128>>8,t[4+g]=y+T+128>>8,t[5+g]=d+b+128>>8,t[6+g]=f-p+128>>8,t[7+g]=m-o+128>>8},t.PICTURE_RATE=[0,23.976,24,25,29.97,30,50,59.94,60,0,0,0,0,0,0,0],t.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]),t.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]),t.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]),t.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]),t.MACROBLOCK_ADDRESS_INCREMENT=new Int16Array([3,6,0,9,12,0,0,0,1,15,18,0,21,24,0,27,30,0,33,36,0,0,0,3,0,0,2,39,42,0,45,48,0,0,0,5,0,0,4,51,54,0,57,60,0,0,0,7,0,0,6,63,66,0,69,72,0,75,78,0,81,84,0,-1,87,0,-1,90,0,93,96,0,99,102,0,105,108,0,111,114,0,0,0,9,0,0,8,117,120,0,123,126,0,129,132,0,135,138,0,0,0,15,0,0,14,0,0,13,0,0,12,0,0,11,0,0,10,141,-1,0,-1,144,0,147,150,0,153,156,0,159,162,0,165,168,0,171,174,0,177,180,0,183,-1,0,-1,186,0,189,192,0,195,198,0,201,204,0,207,210,0,213,216,0,219,222,0,0,0,21,0,0,20,0,0,19,0,0,18,0,0,17,0,0,16,0,0,35,0,0,34,0,0,33,0,0,32,0,0,31,0,0,30,0,0,29,0,0,28,0,0,27,0,0,26,0,0,25,0,0,24,0,0,23,0,0,22]),t.MACROBLOCK_TYPE_INTRA=new Int8Array([3,6,0,-1,9,0,0,0,1,0,0,17]),t.MACROBLOCK_TYPE_PREDICTIVE=new Int8Array([3,6,0,9,12,0,0,0,10,15,18,0,0,0,2,21,24,0,0,0,8,27,30,0,33,36,0,-1,39,0,0,0,18,0,0,26,0,0,1,0,0,17]),t.MACROBLOCK_TYPE_B=new Int8Array([3,6,0,9,15,0,12,18,0,24,21,0,0,0,12,27,30,0,0,0,14,39,42,0,36,33,0,0,0,4,0,0,6,54,48,0,45,51,0,0,0,8,0,0,10,-1,57,0,0,0,1,60,63,0,0,0,30,0,0,17,0,0,22,0,0,26]),t.MACROBLOCK_TYPE=[null,t.MACROBLOCK_TYPE_INTRA,t.MACROBLOCK_TYPE_PREDICTIVE,t.MACROBLOCK_TYPE_B],t.CODE_BLOCK_PATTERN=new Int16Array([6,3,0,9,18,0,12,15,0,24,33,0,36,39,0,27,21,0,30,42,0,60,57,0,54,48,0,69,51,0,81,75,0,63,84,0,45,66,0,72,78,0,0,0,60,105,120,0,132,144,0,114,108,0,126,141,0,87,93,0,117,96,0,0,0,32,135,138,0,99,123,0,129,102,0,0,0,4,90,111,0,0,0,8,0,0,16,0,0,44,150,168,0,0,0,28,0,0,52,0,0,62,183,177,0,156,180,0,0,0,1,165,162,0,0,0,61,0,0,56,171,174,0,0,0,2,0,0,40,153,186,0,0,0,48,192,189,0,147,159,0,0,0,20,0,0,12,240,249,0,0,0,63,231,225,0,195,219,0,252,198,0,0,0,24,0,0,36,0,0,3,207,261,0,243,237,0,204,213,0,210,234,0,201,228,0,216,222,0,258,255,0,264,246,0,-1,282,0,285,291,0,0,0,33,0,0,9,318,330,0,306,348,0,0,0,5,0,0,10,279,267,0,0,0,6,0,0,18,0,0,17,0,0,34,339,357,0,309,312,0,270,276,0,327,321,0,351,354,0,303,297,0,294,288,0,300,273,0,342,345,0,315,324,0,336,333,0,363,375,0,0,0,41,0,0,14,0,0,21,372,366,0,360,369,0,0,0,11,0,0,19,0,0,7,0,0,35,0,0,13,0,0,50,0,0,49,0,0,58,0,0,37,0,0,25,0,0,45,0,0,57,0,0,26,0,0,29,0,0,38,0,0,53,0,0,23,0,0,43,0,0,46,0,0,42,0,0,22,0,0,54,0,0,51,0,0,15,0,0,30,0,0,39,0,0,47,0,0,55,0,0,27,0,0,59,0,0,31]),t.MOTION=new Int16Array([3,6,0,12,9,0,0,0,0,18,15,0,24,21,0,0,0,-1,0,0,1,27,30,0,36,33,0,0,0,2,0,0,-2,42,45,0,48,39,0,60,54,0,0,0,3,0,0,-3,51,57,0,-1,69,0,81,75,0,78,63,0,72,66,0,96,84,0,87,93,0,-1,99,0,108,105,0,0,0,-4,90,102,0,0,0,4,0,0,-7,0,0,5,111,123,0,0,0,-5,0,0,7,114,120,0,126,117,0,0,0,-6,0,0,6,153,162,0,150,147,0,135,138,0,156,141,0,129,159,0,132,144,0,0,0,10,0,0,9,0,0,8,0,0,-8,171,198,0,0,0,-9,180,192,0,168,183,0,165,186,0,174,189,0,0,0,-10,177,195,0,0,0,12,0,0,16,0,0,13,0,0,14,0,0,11,0,0,15,0,0,-16,0,0,-12,0,0,-14,0,0,-15,0,0,-11,0,0,-13]),t.DCT_DC_SIZE_LUMINANCE=new Int8Array([6,3,0,18,15,0,9,12,0,0,0,1,0,0,2,27,24,0,21,30,0,0,0,0,36,33,0,0,0,4,0,0,3,39,42,0,0,0,5,0,0,6,48,45,0,51,-1,0,0,0,7,0,0,8]),t.DCT_DC_SIZE_CHROMINANCE=new Int8Array([6,3,0,12,9,0,18,15,0,24,21,0,0,0,2,0,0,1,0,0,0,30,27,0,0,0,3,36,33,0,0,0,4,42,39,0,0,0,5,48,45,0,0,0,6,51,-1,0,0,0,7,0,0,8]),t.DCT_COEFF=new Int32Array([3,6,0,12,9,0,0,0,1,21,24,0,18,15,0,39,27,0,33,30,0,42,36,0,0,0,257,60,66,0,54,63,0,48,57,0,0,0,513,51,45,0,0,0,2,0,0,3,81,75,0,87,93,0,72,78,0,96,90,0,0,0,1025,69,84,0,0,0,769,0,0,258,0,0,1793,0,0,65535,0,0,1537,111,108,0,0,0,1281,105,102,0,117,114,0,99,126,0,120,123,0,156,150,0,162,159,0,144,147,0,129,135,0,138,132,0,0,0,2049,0,0,4,0,0,514,0,0,2305,153,141,0,165,171,0,180,168,0,177,174,0,183,186,0,0,0,2561,0,0,3329,0,0,6,0,0,259,0,0,5,0,0,770,0,0,2817,0,0,3073,228,225,0,201,210,0,219,213,0,234,222,0,216,231,0,207,192,0,204,189,0,198,195,0,243,261,0,273,240,0,246,237,0,249,258,0,279,276,0,252,255,0,270,282,0,264,267,0,0,0,515,0,0,260,0,0,7,0,0,1026,0,0,1282,0,0,4097,0,0,3841,0,0,3585,315,321,0,333,342,0,312,291,0,375,357,0,288,294,0,-1,369,0,285,303,0,318,363,0,297,306,0,339,309,0,336,348,0,330,300,0,372,345,0,351,366,0,327,354,0,360,324,0,381,408,0,417,420,0,390,378,0,435,438,0,384,387,0,0,0,2050,396,402,0,465,462,0,0,0,8,411,399,0,429,432,0,453,414,0,426,423,0,0,0,10,0,0,9,0,0,11,0,0,5377,0,0,1538,0,0,771,0,0,5121,0,0,1794,0,0,4353,0,0,4609,0,0,4865,444,456,0,0,0,1027,459,450,0,0,0,261,393,405,0,0,0,516,447,441,0,516,519,0,486,474,0,510,483,0,504,498,0,471,537,0,507,501,0,522,513,0,534,531,0,468,477,0,492,495,0,549,546,0,525,528,0,0,0,263,0,0,2562,0,0,2306,0,0,5633,0,0,5889,0,0,6401,0,0,6145,0,0,1283,0,0,772,0,0,13,0,0,12,0,0,14,0,0,15,0,0,517,0,0,6657,0,0,262,540,543,0,480,489,0,588,597,0,0,0,27,609,555,0,606,603,0,0,0,19,0,0,22,591,621,0,0,0,18,573,576,0,564,570,0,0,0,20,552,582,0,0,0,21,558,579,0,0,0,23,612,594,0,0,0,25,0,0,24,600,615,0,0,0,31,0,0,30,0,0,28,0,0,29,0,0,26,0,0,17,0,0,16,567,618,0,561,585,0,654,633,0,0,0,37,645,648,0,0,0,36,630,636,0,0,0,34,639,627,0,663,666,0,657,624,0,651,642,0,669,660,0,0,0,35,0,0,267,0,0,40,0,0,268,0,0,266,0,0,32,0,0,264,0,0,265,0,0,38,0,0,269,0,0,270,0,0,33,0,0,39,0,0,7937,0,0,6913,0,0,7681,0,0,4098,0,0,7425,0,0,7169,0,0,271,0,0,274,0,0,273,0,0,272,0,0,1539,0,0,2818,0,0,3586,0,0,3330,0,0,3074,0,0,3842]),t.PICTURE_TYPE={INTRA:1,PREDICTIVE:2,B:3},t.START={SEQUENCE:179,SLICE_FIRST:1,SLICE_LAST:175,PICTURE:0,EXTENSION:181,USER_DATA:178},t}(),JSMpeg.Decoder.MP2Audio=function(){"use strict";var t=function(e){JSMpeg.Decoder.Base.call(this,e);var i=e.audioBufferSize||131072,s=e.streaming?JSMpeg.BitBuffer.MODE.EVICT:JSMpeg.BitBuffer.MODE.EXPAND;this.bits=new JSMpeg.BitBuffer(i,s),this.left=new Float32Array(1152),this.right=new Float32Array(1152),this.sampleRate=44100,this.D=new Float32Array(1024),this.D.set(t.SYNTHESIS_WINDOW,0),this.D.set(t.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 r=0;r<2;r++)for(var o=0;o<32;o++)this.scaleFactor[r][o]=[0,0,0],this.sample[r][o]=[0,0,0]};return t.prototype=Object.create(JSMpeg.Decoder.Base.prototype),t.prototype.constructor=t,t.prototype.decode=function(){var t=this.bits.index>>3;if(t>=this.bits.byteLength)return!1;var e=this.decodeFrame(this.left,this.right);return this.bits.index=t+e<<3,!!e&&(this.destination&&this.destination.play(this.sampleRate,this.left,this.right),this.advanceDecodedTime(this.left.length/this.sampleRate),!0)},t.prototype.getCurrentTime=function(){var t=this.destination?this.destination.enqueuedTime:0;return this.decodedTime-t},t.prototype.decodeFrame=function(e,i){var s=this.bits.read(11),r=this.bits.read(2),o=this.bits.read(2),n=!this.bits.read(1);if(s!==t.FRAME_SYNC||r!==t.VERSION.MPEG_1||o!==t.LAYER.II)return 0;var a=this.bits.read(4)-1;if(a>13)return 0;var h=this.bits.read(2),d=t.SAMPLE_RATE[h];if(3===h)return 0;r===t.VERSION.MPEG_2&&(h+=4,a+=14);var c=this.bits.read(1),u=(this.bits.read(1),this.bits.read(2)),l=0;u===t.MODE.JOINT_STEREO?l=this.bits.read(2)+1<<2:(this.bits.skip(2),l=u===t.MODE.MONO?0:32),this.bits.skip(4),n&&this.bits.skip(16);var p=144e3*t.BIT_RATE[a]/(d=t.SAMPLE_RATE[h])+c|0,f=0,m=0;if(r===t.VERSION.MPEG_2)f=2,m=30;else{var b=u===t.MODE.MONO?0:1,y=t.QUANT_LUT_STEP_1[b][a];m=63&(f=t.QUANT_LUT_STEP_2[y][h]),f>>=6}l>m&&(l=m);for(var T=0;T<l;T++)this.allocation[0][T]=this.readAllocation(T,f),this.allocation[1][T]=this.readAllocation(T,f);for(T=l;T<m;T++)this.allocation[0][T]=this.allocation[1][T]=this.readAllocation(T,f);var g=u===t.MODE.MONO?1:2;for(T=0;T<m;T++){for(v=0;v<g;v++)this.allocation[v][T]&&(this.scaleFactorInfo[v][T]=this.bits.read(2));u===t.MODE.MONO&&(this.scaleFactorInfo[1][T]=this.scaleFactorInfo[0][T])}for(T=0;T<m;T++){for(var v=0;v<g;v++)if(this.allocation[v][T]){var A=this.scaleFactor[v][T];switch(this.scaleFactorInfo[v][T]){case 0:A[0]=this.bits.read(6),A[1]=this.bits.read(6),A[2]=this.bits.read(6);break;case 1:A[0]=A[1]=this.bits.read(6),A[2]=this.bits.read(6);break;case 2:A[0]=A[1]=A[2]=this.bits.read(6);break;case 3:A[0]=this.bits.read(6),A[1]=A[2]=this.bits.read(6)}}u===t.MODE.MONO&&(this.scaleFactor[1][T][0]=this.scaleFactor[0][T][0],this.scaleFactor[1][T][1]=this.scaleFactor[0][T][1],this.scaleFactor[1][T][2]=this.scaleFactor[0][T][2])}for(var w=0,E=0;E<3;E++)for(var C=0;C<4;C++){for(T=0;T<l;T++)this.readSamples(0,T,E),this.readSamples(1,T,E);for(T=l;T<m;T++)this.readSamples(0,T,E),this.sample[1][T][0]=this.sample[0][T][0],this.sample[1][T][1]=this.sample[0][T][1],this.sample[1][T][2]=this.sample[0][T][2];for(T=m;T<32;T++)this.sample[0][T][0]=0,this.sample[0][T][1]=0,this.sample[0][T][2]=0,this.sample[1][T][0]=0,this.sample[1][T][1]=0,this.sample[1][T][2]=0;for(var S=0;S<3;S++){this.VPos=this.VPos-64&1023;for(v=0;v<2;v++){t.MatrixTransform(this.sample[v],S,this.V,this.VPos),JSMpeg.Fill(this.U,0);for(var x=512-(this.VPos>>1),I=this.VPos%128>>1;I<1024;){for(var P=0;P<32;++P)this.U[P]+=this.D[x++]*this.V[I++];I+=96,x+=32}for(I=1120-I,x-=480;I<1024;){for(P=0;P<32;++P)this.U[P]+=this.D[x++]*this.V[I++];I+=96,x+=32}for(var R=0===v?e:i,_=0;_<32;_++)R[w+_]=this.U[_]/2147418112}w+=32}}return this.sampleRate=d,p},t.prototype.readAllocation=function(e,i){var s=t.QUANT_LUT_STEP_3[i][e],r=t.QUANT_LUT_STEP4[15&s][this.bits.read(s>>4)];return r?t.QUANT_TAB[r-1]:0},t.prototype.readSamples=function(e,i,s){var r=this.allocation[e][i],o=this.scaleFactor[e][i][s],n=this.sample[e][i],a=0;if(r){if(63===o)o=0;else{var h=o/3|0;o=t.SCALEFACTOR_BASE[o%3]+(1<<h>>1)>>h}var d=r.levels;r.group?(a=this.bits.read(r.bits),n[0]=a%d,a=a/d|0,n[1]=a%d,n[2]=a/d|0):(n[0]=this.bits.read(r.bits),n[1]=this.bits.read(r.bits),n[2]=this.bits.read(r.bits));var c=65536/(d+1)|0;a=((d=(d+1>>1)-1)-n[0])*c,n[0]=a*(o>>12)+(a*(4095&o)+2048>>12)>>12,a=(d-n[1])*c,n[1]=a*(o>>12)+(a*(4095&o)+2048>>12)>>12,a=(d-n[2])*c,n[2]=a*(o>>12)+(a*(4095&o)+2048>>12)>>12}else n[0]=n[1]=n[2]=0},t.MatrixTransform=function(t,e,i,s){var r,o,n,a,h,d,c,u,l,p,f,m,b,y,T,g,v,A,w,E,C,S,x,I,P,R,_,D,M,k,N,L,F;r=t[0][e]+t[31][e],o=.500602998235*(t[0][e]-t[31][e]),n=t[1][e]+t[30][e],a=.505470959898*(t[1][e]-t[30][e]),h=t[2][e]+t[29][e],d=.515447309923*(t[2][e]-t[29][e]),c=t[3][e]+t[28][e],u=.53104259109*(t[3][e]-t[28][e]),l=t[4][e]+t[27][e],p=.553103896034*(t[4][e]-t[27][e]),f=t[5][e]+t[26][e],m=.582934968206*(t[5][e]-t[26][e]),b=t[6][e]+t[25][e],y=.622504123036*(t[6][e]-t[25][e]),T=t[7][e]+t[24][e],g=.674808341455*(t[7][e]-t[24][e]),v=t[8][e]+t[23][e],A=.744536271002*(t[8][e]-t[23][e]),w=t[9][e]+t[22][e],E=.839349645416*(t[9][e]-t[22][e]),C=t[10][e]+t[21][e],S=.972568237862*(t[10][e]-t[21][e]),x=t[11][e]+t[20][e],I=1.16943993343*(t[11][e]-t[20][e]),P=t[12][e]+t[19][e],R=1.48416461631*(t[12][e]-t[19][e]),_=t[13][e]+t[18][e],D=2.05778100995*(t[13][e]-t[18][e]),M=t[14][e]+t[17][e],k=3.40760841847*(t[14][e]-t[17][e]),F=r+(N=t[15][e]+t[16][e]),N=.502419286188*(r-N),r=n+M,M=.52249861494*(n-M),n=h+_,_=.566944034816*(h-_),h=c+P,P=.64682178336*(c-P),c=l+x,x=.788154623451*(l-x),l=f+C,C=1.06067768599*(f-C),f=b+w,w=1.72244709824*(b-w),b=T+v,v=5.10114861869*(T-v),T=F+b,b=.509795579104*(F-b),F=r+f,r=.601344886935*(r-f),f=n+l,l=.899976223136*(n-l),n=h+c,c=2.56291544774*(h-c),h=T+n,T=.541196100146*(T-n),n=F+f,f=1.30656296488*(F-f),F=h+n,h=.707106781187*(h-n),n=T+f,n+=T=.707106781187*(T-f),f=b+c,b=.541196100146*(b-c),c=r+l,l=1.30656296488*(r-l),r=f+c,c=.707106781187*(f-c),f=b+l,r+=f+=b=.707106781187*(b-l),f+=c,c+=b,l=N+v,N=.509795579104*(N-v),v=M+w,M=.601344886935*(M-w),w=_+C,C=.899976223136*(_-C),_=P+x,x=2.56291544774*(P-x),P=l+_,l=.541196100146*(l-_),_=v+w,w=1.30656296488*(v-w),v=P+_,_=.707106781187*(P-_),P=l+w,w=.707106781187*(l-w),l=N+x,N=.541196100146*(N-x),x=M+C,C=1.30656296488*(M-C),M=l+x,x=.707106781187*(l-x),l=N+C,v+=M+=l+=N=.707106781187*(N-C),M+=P+=w,P+=l+=x,l+=_,_+=x+=N,x+=w,w+=N,C=o+(L=10.1900081235*(t[15][e]-t[16][e])),o=.502419286188*(o-L),L=a+k,a=.52249861494*(a-k),k=d+D,D=.566944034816*(d-D),d=u+R,u=.64682178336*(u-R),R=p+I,p=.788154623451*(p-I),I=m+S,S=1.06067768599*(m-S),m=y+E,E=1.72244709824*(y-E),y=g+A,g=5.10114861869*(g-A),A=C+y,y=.509795579104*(C-y),C=L+m,L=.601344886935*(L-m),m=k+I,I=.899976223136*(k-I),k=d+R,R=2.56291544774*(d-R),d=A+k,A=.541196100146*(A-k),k=C+m,m=1.30656296488*(C-m),C=d+k,k=.707106781187*(d-k),d=A+m,m=.707106781187*(A-m),A=y+R,R=.541196100146*(y-R),y=L+I,I=1.30656296488*(L-I),L=A+y,y=.707106781187*(A-y),A=R+I,L+=A+=I=.707106781187*(R-I),A+=y,R=y+I,y=o+g,o=.509795579104*(o-g),g=a+E,a=.601344886935*(a-E),E=D+S,S=.899976223136*(D-S),D=u+p,p=2.56291544774*(u-p),u=y+D,y=.541196100146*(y-D),D=g+E,E=1.30656296488*(g-E),g=u+D,D=.707106781187*(u-D),u=y+E,E=.707106781187*(y-E),y=o+p,o=.541196100146*(o-p),p=a+S,S=1.30656296488*(a-S),a=y+p,p=.707106781187*(y-p),y=o+S,C+=g+=a+=y+=o=.707106781187*(o-S),g+=L,L+=a+=u+=E,a+=d+=m,d+=u+=y+=p,u+=A,A+=y+=D,y+=k,k+=D+=p+=o,D+=R,R+=p+=E,p+=m,m+=E+=o,E+=I,I+=o,i[s+48]=-F,i[s+49]=i[s+47]=-C,i[s+50]=i[s+46]=-v,i[s+51]=i[s+45]=-g,i[s+52]=i[s+44]=-r,i[s+53]=i[s+43]=-L,i[s+54]=i[s+42]=-M,i[s+55]=i[s+41]=-a,i[s+56]=i[s+40]=-n,i[s+57]=i[s+39]=-d,i[s+58]=i[s+38]=-P,i[s+59]=i[s+37]=-u,i[s+60]=i[s+36]=-f,i[s+61]=i[s+35]=-A,i[s+62]=i[s+34]=-l,i[s+63]=i[s+33]=-y,i[s+32]=-h,i[s+0]=h,i[s+31]=-k,i[s+1]=k,i[s+30]=-_,i[s+2]=_,i[s+29]=-D,i[s+3]=D,i[s+28]=-c,i[s+4]=c,i[s+27]=-R,i[s+5]=R,i[s+26]=-x,i[s+6]=x,i[s+25]=-p,i[s+7]=p,i[s+24]=-T,i[s+8]=T,i[s+23]=-m,i[s+9]=m,i[s+22]=-w,i[s+10]=w,i[s+21]=-E,i[s+11]=E,i[s+20]=-b,i[s+12]=b,i[s+19]=-I,i[s+13]=I,i[s+18]=-N,i[s+14]=N,i[s+17]=-o,i[s+15]=o,i[s+16]=0},t.FRAME_SYNC=2047,t.VERSION={MPEG_2_5:0,MPEG_2:2,MPEG_1:3},t.LAYER={III:1,II:2,I:3},t.MODE={STEREO:0,JOINT_STEREO:1,DUAL_CHANNEL:2,MONO:3},t.SAMPLE_RATE=new Uint16Array([44100,48e3,32e3,0,22050,24e3,16e3,0]),t.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]),t.SCALEFACTOR_BASE=new Uint32Array([33554432,26632170,21137968]),t.SYNTHESIS_WINDOW=new 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strict";var t=function(e){this.canvas=e.canvas||document.createElement("canvas"),this.width=this.canvas.width,this.height=this.canvas.height,this.enabled=!0;var i={preserveDrawingBuffer:!!e.preserveDrawingBuffer,alpha:!1,depth:!1,stencil:!1,antialias:!1};if(this.gl=this.canvas.getContext("webgl",i)||this.canvas.getContext("experimental-webgl",i),!this.gl)throw new Error("Failed to get WebGL Context");var s=this.gl,r=null;this.vertexBuffer=s.createBuffer();var o=new Float32Array([0,0,0,1,1,0,1,1]);s.bindBuffer(s.ARRAY_BUFFER,this.vertexBuffer),s.bufferData(s.ARRAY_BUFFER,o,s.STATIC_DRAW),this.program=this.createProgram(t.SHADER.VERTEX_IDENTITY,t.SHADER.FRAGMENT_YCRCB_TO_RGBA),r=s.getAttribLocation(this.program,"vertex"),s.enableVertexAttribArray(r),s.vertexAttribPointer(r,2,s.FLOAT,!1,0,0),this.textureY=this.createTexture(0,"textureY"),this.textureCb=this.createTexture(1,"textureCb"),this.textureCr=this.createTexture(2,"textureCr"),this.loadingProgram=this.createProgram(t.SHADER.VERTEX_IDENTITY,t.SHADER.FRAGMENT_LOADING),r=s.getAttribLocation(this.loadingProgram,"vertex"),s.enableVertexAttribArray(r),s.vertexAttribPointer(r,2,s.FLOAT,!1,0,0),this.shouldCreateUnclampedViews=!this.allowsClampedTextureData()};return t.prototype.destroy=function(){var t=this.gl;t.deleteTexture(this.textureY),t.deleteTexture(this.textureCb),t.deleteTexture(this.textureCr),t.deleteProgram(this.program),t.deleteProgram(this.loadingProgram),t.deleteBuffer(this.vertexBuffer)},t.prototype.resize=function(t,e){this.width=0|t,this.height=0|e,this.canvas.width=this.width,this.canvas.height=this.height,this.gl.useProgram(this.program),this.gl.viewport(0,0,this.width,this.height)},t.prototype.createTexture=function(t,e){var i=this.gl,s=i.createTexture();return i.bindTexture(i.TEXTURE_2D,s),i.texParameteri(i.TEXTURE_2D,i.TEXTURE_MAG_FILTER,i.LINEAR),i.texParameteri(i.TEXTURE_2D,i.TEXTURE_MIN_FILTER,i.LINEAR),i.texParameteri(i.TEXTURE_2D,i.TEXTURE_WRAP_S,i.CLAMP_TO_EDGE),i.texParameteri(i.TEXTURE_2D,i.TEXTURE_WRAP_T,i.CLAMP_TO_EDGE),i.uniform1i(i.getUniformLocation(this.program,e),t),s},t.prototype.createProgram=function(t,e){var i=this.gl,s=i.createProgram();return i.attachShader(s,this.compileShader(i.VERTEX_SHADER,t)),i.attachShader(s,this.compileShader(i.FRAGMENT_SHADER,e)),i.linkProgram(s),i.useProgram(s),s},t.prototype.compileShader=function(t,e){var i=this.gl,s=i.createShader(t);if(i.shaderSource(s,e),i.compileShader(s),!i.getShaderParameter(s,i.COMPILE_STATUS))throw new Error(i.getShaderInfoLog(s));return s},t.prototype.allowsClampedTextureData=function(){var t=this.gl,e=t.createTexture();return t.bindTexture(t.TEXTURE_2D,e),t.texImage2D(t.TEXTURE_2D,0,t.LUMINANCE,1,1,0,t.LUMINANCE,t.UNSIGNED_BYTE,new Uint8ClampedArray([0])),0===t.getError()},t.prototype.renderProgress=function(t){var e=this.gl;e.useProgram(this.loadingProgram);var i=e.getUniformLocation(this.loadingProgram,"progress");e.uniform1f(i,t),e.drawArrays(e.TRIANGLE_STRIP,0,4)},t.prototype.render=function(t,e,i){if(this.enabled){var s=this.gl,r=this.width+15>>4<<4,o=this.height,n=r>>1,a=o>>1;this.shouldCreateUnclampedViews&&(t=new Uint8Array(t.buffer),e=new Uint8Array(e.buffer),i=new Uint8Array(i.buffer)),s.useProgram(this.program),this.updateTexture(s.TEXTURE0,this.textureY,r,o,t),this.updateTexture(s.TEXTURE1,this.textureCb,n,a,e),this.updateTexture(s.TEXTURE2,this.textureCr,n,a,i),s.drawArrays(s.TRIANGLE_STRIP,0,4)}},t.prototype.updateTexture=function(t,e,i,s,r){var o=this.gl;o.activeTexture(t),o.bindTexture(o.TEXTURE_2D,e),o.texImage2D(o.TEXTURE_2D,0,o.LUMINANCE,i,s,0,o.LUMINANCE,o.UNSIGNED_BYTE,r)},t.IsSupported=function(){try{if(!window.WebGLRenderingContext)return!1;var t=document.createElement("canvas");return!(!t.getContext("webgl")&&!t.getContext("experimental-webgl"))}catch(t){return!1}},t.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")},t}(),JSMpeg.Renderer.Canvas2D=function(){"use strict";var t=function(t){this.canvas=t.canvas||document.createElement("canvas"),this.width=this.canvas.width,this.height=this.canvas.height,this.enabled=!0,this.context=this.canvas.getContext("2d")};return t.prototype.destroy=function(){},t.prototype.resize=function(t,e){this.width=0|t,this.height=0|e,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)},t.prototype.renderProgress=function(t){var e=this.canvas.width,i=this.canvas.height,s=this.context;s.fillStyle="#222",s.fillRect(0,0,e,i),s.fillStyle="#fff",s.fillRect(0,i-i*t,e,i*t)},t.prototype.render=function(t,e,i){this.YCbCrToRGBA(t,e,i,this.imageData.data),this.context.putImageData(this.imageData,0,0)},t.prototype.YCbCrToRGBA=function(t,e,i,s){if(this.enabled)for(var r,o,n,a,h,d=this.width+15>>4<<4,c=d>>1,u=0,l=d,p=d+(d-this.width),f=0,m=c-(this.width>>1),b=0,y=4*this.width,T=4*this.width,g=this.width>>1,v=this.height>>1,A=0;A<v;A++){for(var w=0;w<g;w++){r=e[f],o=i[f],f++,n=r+(103*r>>8)-179,a=(88*o>>8)-44+(183*r>>8)-91,h=o+(198*o>>8)-227;var E=t[u++],C=t[u++];s[b]=E+n,s[b+1]=E-a,s[b+2]=E+h,s[b+4]=C+n,s[b+5]=C-a,s[b+6]=C+h,b+=8;var S=t[l++],x=t[l++];s[y]=S+n,s[y+1]=S-a,s[y+2]=S+h,s[y+4]=x+n,s[y+5]=x-a,s[y+6]=x+h,y+=8}u+=p,l+=p,b+=T,y+=T,f+=m}},t}(),JSMpeg.AudioOutput.WebAudio=function(){"use strict";var t=function(e){this.context=t.CachedContext=t.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=!0,this.unlocked=!t.NeedsUnlocking(),Object.defineProperty(this,"enqueuedTime",{get:this.getEnqueuedTime})};return t.prototype.destroy=function(){this.gain.disconnect(),this.context._connections--,0===this.context._connections&&(this.context.close(),t.CachedContext=null)},t.prototype.play=function(t,e,i){if(this.enabled){if(!this.unlocked){var s=JSMpeg.Now();return this.wallclockStartTime<s&&(this.wallclockStartTime=s),void(this.wallclockStartTime+=e.length/t)}this.gain.gain.value=this.volume;var r=this.context.createBuffer(2,e.length,t);r.getChannelData(0).set(e),r.getChannelData(1).set(i);var o=this.context.createBufferSource();o.buffer=r,o.connect(this.destination);var n=this.context.currentTime,a=r.duration;this.startTime<n&&(this.startTime=n,this.wallclockStartTime=JSMpeg.Now()),o.start(this.startTime),this.startTime+=a,this.wallclockStartTime+=a}},t.prototype.stop=function(){this.gain.gain.value=0},t.prototype.getEnqueuedTime=function(){return Math.max(this.wallclockStartTime-JSMpeg.Now(),0)},t.prototype.resetEnqueuedTime=function(){this.startTime=this.context.currentTime,this.wallclockStartTime=JSMpeg.Now()},t.prototype.unlock=function(t){if(this.unlocked)t&&t();else{this.unlockCallback=t;var e=this.context.createBuffer(1,1,22050),i=this.context.createBufferSource();i.buffer=e,i.connect(this.destination),i.start(0),setTimeout(this.checkIfUnlocked.bind(this,i,0),0)}},t.prototype.checkIfUnlocked=function(t,e){t.playbackState===t.PLAYING_STATE||t.playbackState===t.FINISHED_STATE?(this.unlocked=!0,this.unlockCallback&&(this.unlockCallback(),this.unlockCallback=null)):e<10&&setTimeout(this.checkIfUnlocked.bind(this,t,e+1),100)},t.NeedsUnlocking=function(){return/iPhone|iPad|iPod/i.test(navigator.userAgent)},t.IsSupported=function(){return window.AudioContext||window.webkitAudioContext},t.CachedContext=null,t}();