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/**
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/*!
 * @overview es6-promise - a tiny implementation of Promises/A+.
 * @copyright Copyright (c) 2014 Yehuda Katz, Tom Dale, Stefan Penner and contributors (Conversion to ES6 API by Jake Archibald)
 * @license   Licensed under MIT license
 *            See https://raw.githubusercontent.com/stefanpenner/es6-promise/master/LICENSE
 * @version   v4.2.5+7f2b526d
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getSrc(){return this.getAttribute("src")||""},set:function setSrc(e){this.setAttribute("src",e),this._loading=!1,this._prepForLoad("interactive")}},buffered:{get:function getBuffered(){var e,t=this;return e=this._stream&&this._byteLength&&this._duration?this._stream.getBufferedRanges().map(function(e){return e.map(function(e){return e/t._stream.length*t._duration})}):[[0,0]],new T.default(e)}},seekable:{get:function getSeekable(){return this.duration<1/0&&this._stream&&this._stream.seekable&&this._codec&&this._codec.seekable?new T.default([[0,this._duration]]):new T.default([])}},currentTime:{get:function getCurrentTime(){return this._state==P.SEEKING?this._seekTargetTime:this._codec?this._state!=P.PLAYING||this._paused?this._initialPlaybackOffset:this._getPlaybackTime():this._initialSeekTime},set:function setCurrentTime(e){this._seek(e,A.EXACT)}},duration:{get:function getDuration(){return 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Image;i.src=this._poster,i.className="ogvjs-poster",i.style.position="absolute",i.style.top="0",i.style.left="0",i.style.width="100%",i.style.height="100%",i.style.objectFit="contain",i.style.visibility="hidden",i.addEventListener("load",function(){t._thumbnail===i&&(OGVPlayer.styleManager.appendRule("."+t._instanceId,{width:i.naturalWidth+"px",height:i.naturalHeight+"px"}),OGVPlayer.updatePositionOnResize(),i.style.visibility="visible")}),this._thumbnail=i,this.appendChild(i)}}},videoWidth:{get:function getVideoWidth(){return this._videoInfo?this._videoInfo.displayWidth:0}},videoHeight:{get:function getVideoHeight(){return this._videoInfo?this._videoInfo.displayHeight:0}},ogvjsVideoFrameRate:{get:function getOgvJsVideoFrameRate(){return this._videoInfo?0==this._videoInfo.fps?this._totalFrameCount/(this._totalFrameTime/1e3):this._videoInfo.fps:0}},ogvjsAudioChannels:{get:function getOgvJsAudioChannels(){return this._audioInfo?this._audioInfo.channels:0}},ogvjsAudioSampleRate:{get:function getOgvJsAudioChannels(){return this._audioInfo?this._audioInfo.rate:0}},width:{get:function getWidth(){return this._width},set:function setWidth(e){this._width=parseInt(e,10),this.style.width=this._width+"px",OGVPlayer.updatePositionOnResize()}},height:{get:function getHeight(){return this._height},set:function setHeight(e){this._height=parseInt(e,10),this.style.height=this._height+"px",OGVPlayer.updatePositionOnResize()}},autoplay:{get:function getAutoplay(){return!1},set:function setAutoplay(e){}},controls:{get:function getControls(){return!1},set:function setControls(e){}},loop:{get:function getLoop(){return!1},set:function setLoop(e){}},crossOrigin:{get:function getCrossOrigin(){return null},set:function setCrossOrigin(e){}},currentSrc:{get:function getCurrentSrc(){return this._currentSrc}},defaultMuted:{get:function getDefaultMuted(){return!1}},defaultPlaybackRate:{get:function getDefaultPlaybackRate(){return 1}},error:{get:function getError(){return this._state===P.ERROR?this._mediaError?this._mediaError:new y.default("unknown error occurred in media procesing"):null}},preload:{get:function getPreload(){return this.getAttribute("preload")||""},set:function setPreload(e){this.setAttribute("preload",e)}},readyState:{get:function getReadyState(){return this._stream&&this._codec&&this._codec.loadedMetadata?OGVPlayer.HAVE_ENOUGH_DATA:OGVPlayer.HAVE_NOTHING}},networkState:{get:function getNetworkState(){return this._stream?this._stream.waiting?OGVPlayer.NETWORK_LOADING:OGVPlayer.NETWORK_IDLE:this.readyState==OGVPlayer.HAVE_NOTHING?OGVPlayer.NETWORK_EMPTY:OGVPlayer.NETWORK_NO_SOURCE}},playbackRate:{get:function getPlaybackRate(){return this._playbackRate},set:function setPlaybackRate(e){var t=Number(e)||1;this._audioFeeder?this._audioFeeder.tempo=t:this._paused||(this._initialPlaybackOffset=this._getPlaybackTime(),this._initialPlaybackPosition=t*o()/1e3),this._playbackRate=t,this._fireEventAsync("ratechange")}},played:{get:function getPlayed(){return new T.default([[0,this.currentTime]])}},volume:{get:function getVolume(){return this._volume},set:function setVolume(e){this._volume=+e,this._audioFeeder&&(this._audioFeeder.volume=this._volume),this._fireEventAsync("volumechange")}}}),t.onframecallback=null,t.onloadstate=null,t.onprogress=null,t.onsuspend=null,t.onabort=null,t.onemptied=null,t.onstalled=null,t.onloadedmetadata=null,t.onloadeddata=null,t.oncanplay=null,t.oncanplaythrough=null,t.onplaying=null,t.onwaiting=null,t.onseeking=null,t.onseeked=null,t.onended=null,t.ondurationchange=null,t.ontimeupdate=null,t.onplay=null,t.onpause=null,t.onratechange=null,t.onresize=null,t.onvolumechange=null,t.onaudiofeedercreated=null,t}return(0,c.default)(OGVPlayer,t),(0,s.default)(OGVPlayer,[{key:"_time",value:function _time(e){var t=o();e();var i=o()-t;return this._lastFrameDecodeTime+=i,i}},{key:"_log",value:function _log(e){var t=this._options;if(t.debug){var i=o()-this._startTime;t.debugFilter&&!e.match(t.debugFilter)||console.log("["+Math.round(10*i)/10+"ms] "+e)}}},{key:"_fireEvent",value:function _fireEvent(e){var t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};this._log("fireEvent "+e);var i,r="function"==typeof Event;for(var n in r?i=new CustomEvent(e):(i=document.createEvent("Event")).initEvent(e,!1,!1),t)t.hasOwnProperty(n)&&(i[n]=t[n]);var o=this.dispatchEvent(i);!r&&"resize"===e&&this.onresize&&o&&this.onresize.call(this,i)}},{key:"_fireEventAsync",value:function _fireEventAsync(t){var i=this,r=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};this._log("fireEventAsync "+t),e(function(){i._fireEvent(t,r)})}},{key:"_initAudioFeeder",value:function _initAudioFeeder(){var e=this,t=this._options,i={base:t.base||m.default.base,bufferSize:8192};t.audioContext&&(i.audioContext=t.audioContext),t.audioDestination&&(i.output=t.audioDestination),t.audioBackendFactory&&(i.backendFactory=t.audioBackendFactory);var r=this._audioFeeder=new _.default(i);r.init(this._audioInfo.channels,this._audioInfo.rate),this.onaudiofeedercreated&&this.onaudiofeedercreated(this._audioFeeder),r.bufferThreshold=1,r.volume=this.volume,r.muted=this.muted,r.tempo=this.playbackRate,r.onbufferlow=function(){e._log("onbufferlow"),e._stream&&(e._stream.buffering||e._stream.seeking)||e._pendingAudio||e._pingProcessing()},r.onstarved=function(){e._dataEnded?e._log("onstarved: appear to have reached end of audio"):(e._log("onstarved: halting audio due to starvation"),e._stopPlayback(),e._prebufferingAudio=!0),e._isProcessing()||e._pingProcessing(0)}}},{key:"_startPlayback",value:function _startPlayback(e){if(this._audioFeeder){this._audioFeeder.start();var t=this._audioFeeder.getPlaybackState();this._initialPlaybackPosition=t.playbackPosition}else this._initialPlaybackPosition=this._playbackRate*o()/1e3;void 0!==e&&(this._initialPlaybackOffset=e),this._prebufferingAudio=!1,this._log("continuing at "+this._initialPlaybackPosition+", "+this._initialPlaybackOffset)}},{key:"_stopPlayback",value:function _stopPlayback(){this._initialPlaybackOffset=this._getPlaybackTime(),this._log("pausing at "+this._initialPlaybackOffset),this._audioFeeder&&this._audioFeeder.stop()}},{key:"_getPlaybackTime",value:function _getPlaybackTime(e){return this._prebufferingAudio||this._paused?this._initialPlaybackOffset:(this._audioFeeder?(e=e||this._audioFeeder.getPlaybackState()).playbackPosition:this._playbackRate*o()/1e3)-this._initialPlaybackPosition+this._initialPlaybackOffset}},{key:"_stopVideo",value:function _stopVideo(){this._log("STOPPING"),this._state=P.INITIAL,this._seekState=E.NOT_SEEKING,this._started=!1,this._ended=!1,this._frameEndTimestamp=0,this._audioEndTimestamp=0,this._lastFrameDecodeTime=0,this._prebufferingAudio=!1,this._actionQueue.splice(0,this._actionQueue.length),this._stream&&(this._stream.abort(),this._stream=null,this._streamEnded=!1),this._codec&&(this._codec.close(),this._codec=null,this._pendingFrame=0,this._pendingAudio=0,this._dataEnded=!1),this._videoInfo=null,this._audioInfo=null,this._audioFeeder&&(this._audioFeeder.close(),this._audioFeeder=null),this._nextProcessingTimer&&(clearTimeout(this._nextProcessingTimer),this._nextProcessingTimer=null),this._nextFrameTimer&&(clearTimeout(this._nextFrameTimer),this._nextFrameTimer=null),this._frameSink&&(this._frameSink.clear(),this._frameSink=null),this._decodedFrames&&(this._decodedFrames=[]),this._pendingFrames&&(this._pendingFrames=[]),this._initialSeekTime=0,this._initialPlaybackPosition=0,this._initialPlaybackOffset=0,this._duration=null}},{key:"_doFrameComplete",value:function _doFrameComplete(){var t=this,i=arguments.length>0&&void 0!==arguments[0]?arguments[0]:{};this._startedPlaybackInDocument&&!document.body.contains(this)&&e(function(){t.stop()});var r=o(),a=r-this._lastFrameTimestamp,s=this._actualPerFrameTime-this._targetPerFrameTime;this._totalJitter+=Math.abs(s),this._playTime+=a;var u={cpuTime:this._lastFrameDecodeTime,drawingTime:this._drawingTime-this._lastFrameDrawingTime,bufferTime:this._bufferTime-this._lastFrameBufferTime,proxyTime:this._proxyTime-this._lastFrameProxyTime,demuxerTime:0,videoTime:0,audioTime:0,clockTime:this._actualPerFrameTime,late:i.dropped,dropped:i.dropped};function n(e){return Math.round(10*e)/10}this._codec&&(u.demuxerTime=this._codec.demuxerCpuTime-this._lastFrameDemuxerCpuTime,u.videoTime+=this._currentVideoCpuTime-this._lastFrameVideoCpuTime,u.audioTime+=this._codec.audioCpuTime-this._lastFrameAudioCpuTime),u.cpuTime+=u.demuxerTime,this._lastFrameDecodeTime=0,this._lastFrameTimestamp=r,this._codec?(this._lastFrameVideoCpuTime=this._currentVideoCpuTime,this._lastFrameAudioCpuTime=this._codec.audioCpuTime,this._lastFrameDemuxerCpuTime=this._codec.demuxerCpuTime):(this._lastFrameVideoCpuTime=0,this._lastFrameAudioCpuTime=0,this._lastFrameDemuxerCpuTime=0),this._lastFrameDrawingTime=this._drawingTime,this._lastFrameBufferTime=this._bufferTime,this._lastFrameProxyTime=this._proxyTime,this._log("drew frame "+i.frameEndTimestamp+": clock time "+n(a)+" (jitter "+n(s)+") cpu: "+n(u.cpuTime)+" (mux: "+n(u.demuxerTime)+" buf: "+n(u.bufferTime)+" draw: "+n(u.drawingTime)+" proxy: "+n(u.proxyTime)+") vid: "+n(u.videoTime)+" aud: "+n(u.audioTime)),this._fireEventAsync("framecallback",u),(!this._lastTimeUpdate||r-this._lastTimeUpdate>=this._timeUpdateInterval)&&(this._lastTimeUpdate=r,this._fireEventAsync("timeupdate"))}},{key:"_seekStream",value:function _seekStream(e){var t=this;this._stream.seeking&&this._stream.abort(),this._stream.buffering&&this._stream.abort(),this._streamEnded=!1,this._dataEnded=!1,this._ended=!1,this._stream.seek(e).then(function(){t._readBytesAndWait()}).catch(function(e){t._onStreamError(e)})}},{key:"_onStreamError",value:function _onStreamError(e){"AbortError"===e.name?this._log("i/o promise canceled; ignoring"):(this._log("i/o error: "+e),this._mediaError=new y.default(y.default.MEDIA_ERR_NETWORK,String(e)),this._state=P.ERROR,this._stopPlayback())}},{key:"_seek",value:function _seek(e,t){var i=this;if(this._log("requested seek to "+e+", mode "+t),this.readyState==this.HAVE_NOTHING)return this._log("not yet loaded; saving seek position for later"),void(this._initialSeekTime=e);if(this._stream&&!this._stream.seekable)throw new Error("Cannot seek a non-seekable stream");if(this._codec&&!this._codec.seekable)throw new Error("Cannot seek in a non-seekable file");var r=function prepForSeek(r){i._stream&&i._stream.buffering&&i._stream.abort(),i._stream&&i._stream.seeking&&i._stream.abort(),i._actionQueue.splice(0,i._actionQueue.length),i._stopPlayback(),i._prebufferingAudio=!1,i._audioFeeder&&i._audioFeeder.flush(),i._state=P.SEEKING,i._seekTargetTime=e,i._seekMode=t,i._codec?i._codec.flush(r):r()};r(function(){i._isProcessing()||i._pingProcessing(0)}),this._actionQueue.push(function(){r(function(){i._doSeek(e)})})}},{key:"_doSeek",value:function _doSeek(e){var t=this;this._streamEnded=!1,this._dataEnded=!1,this._ended=!1,this._state=P.SEEKING,this._seekTargetTime=e,this._lastSeekPosition=-1,this._decodedFrames=[],this._pendingFrames=[],this._pendingFrame=0,this._pendingAudio=0,this._didSeek=!1,this._codec.seekToKeypoint(e,function(i){if(i)return t._seekState=E.LINEAR_TO_TARGET,t._fireEventAsync("seeking"),t._didSeek?void 0:void t._pingProcessing();t._codec.getKeypointOffset(e,function(e){e>0?(t._seekState=E.LINEAR_TO_TARGET,t._seekStream(e)):(t._seekState=E.BISECT_TO_TARGET,t._startBisection(t._seekTargetTime)),t._fireEventAsync("seeking")})})}},{key:"_startBisection",value:function _startBisection(e){var t=this,i=Math.max(0,this._stream.length-65536);this._bisectTargetTime=e,this._seekBisector=new g.default({start:0,end:i,process:function process(e,i,r){return r!=t._lastSeekPosition&&(t._lastSeekPosition=r,t._codec.flush(function(){t._seekStream(r)}),!0)}}),this._seekBisector.start()}},{key:"_continueSeekedPlayback",value:function _continueSeekedPlayback(){var e=this;this._seekState=E.NOT_SEEKING,this._state=P.READY,this._frameEndTimestamp=this._codec.frameTimestamp,this._audioEndTimestamp=this._codec.audioTimestamp,this._codec.hasAudio?this._seekTargetTime=this._codec.audioTimestamp:this._seekTargetTime=this._codec.frameTimestamp,this._initialPlaybackOffset=this._seekTargetTime;var t=function finishedSeeking(){e._lastTimeUpdate=e._seekTargetTime,e._fireEventAsync("timeupdate"),e._fireEventAsync("seeked"),e._isProcessing()||e._pingProcessing()};if(this._codec.hasVideo&&this._decodedFrames.length){this._thumbnail&&(this.removeChild(this._thumbnail),this._thumbnail=null);var i=this._decodedFrames.shift();this._frameSink.drawFrame(i.yCbCrBuffer),t()}else{if(this._codec.hasVideo&&this._codec.frameReady)return this._codec.decodeFrame(function(i){i&&(e._thumbnail&&(e.removeChild(e._thumbnail),e._thumbnail=null),e._frameSink.drawFrame(e._codec.frameBuffer)),t()}),void this._codec.sync();t()}}},{key:"_doProcessLinearSeeking",value:function _doProcessLinearSeeking(){var e,t=this;if(e=this._codec.hasVideo?this._targetPerFrameTime/1e3:1/256,this._codec.hasVideo){if(this._pendingFrame)return;if(!this._codec.frameReady)return void this._codec.process(function(e){e?t._pingProcessing():t._streamEnded?(t._log("stream ended during linear seeking on video"),t._dataEnded=!0,t._continueSeekedPlayback()):t._readBytesAndWait()});if(this._seekMode===A.FAST&&this._codec.keyframeTimestamp==this._codec.frameTimestamp)return void this._continueSeekedPlayback();if(this._codec.frameTimestamp<=this._seekTargetTime){var i=this._codec.frameTimestamp;return this._pendingFrame++,this._pendingFrames.push({frameEndTimestamp:i}),this._decodedFrames.splice(0,this._decodedFrames.length),this._codec.decodeFrame(function(e){t._pendingFrame--,t._pendingFrames.shift(),t._decodedFrames.push({yCbCrBuffer:t._codec.frameBuffer,videoCpuTime:t._codec.videoCpuTime,frameEndTimestamp:i}),t._pingProcessing()}),void this._codec.sync()}if(!this._codec.hasAudio)return void this._continueSeekedPlayback()}if(this._codec.hasAudio){if(this._pendingAudio)return;return this._codec.audioReady?this._codec.audioTimestamp+e<this._seekTargetTime?void this._codec.decodeAudio(function(){t._pingProcessing()}):void this._continueSeekedPlayback():void this._codec.process(function(e){e?t._pingProcessing():t._streamEnded?(t._log("stream ended during linear seeking on audio"),t._dataEnded=!0,t._continueSeekedPlayback()):t._readBytesAndWait()})}}},{key:"_doProcessBisectionSeek",value:function _doProcessBisectionSeek(){var e,t,i=this;if(this._codec.hasVideo)t=this._codec.frameTimestamp,e=this._targetPerFrameTime/1e3;else{if(!this._codec.hasAudio)throw new Error("Invalid seek state; no audio or video track available");t=this._codec.audioTimestamp,e=1/256}t<0?this._codec.process(function(e){if(e)i._pingProcessing();else if(i._streamEnded){if(i._log("stream ended during bisection seek"),!i._seekBisector.right())throw i._log("failed going back"),new Error("not sure what to do")}else i._readBytesAndWait()}):t-e/2>this._bisectTargetTime?this._seekBisector.left()||(this._log("close enough (left)"),this._seekTargetTime=t,this._continueSeekedPlayback()):t+e/2<this._bisectTargetTime?this._seekBisector.right()||(this._log("close enough (right)"),this._seekState=E.LINEAR_TO_TARGET,this._pingProcessing()):this._seekState==E.BISECT_TO_TARGET&&this._codec.hasVideo&&this._codec.keyframeTimestamp<this._codec.frameTimestamp?(this._log("finding the keypoint now"),this._seekState=E.BISECT_TO_KEYPOINT,this._startBisection(this._codec.keyframeTimestamp)):(this._log("straight seeking now"),this._seekState=E.LINEAR_TO_TARGET,this._pingProcessing())}},{key:"_setupVideo",value:function _setupVideo(){this._videoInfo.fps>0?this._targetPerFrameTime=1e3/this._videoInfo.fps:this._targetPerFrameTime=16.667,this._canvas.width=this._videoInfo.displayWidth,this._canvas.height=this._videoInfo.displayHeight,OGVPlayer.styleManager.appendRule("."+this._instanceId,{width:this._videoInfo.displayWidth+"px",height:this._videoInfo.displayHeight+"px"}),OGVPlayer.updatePositionOnResize();var e={};void 0!==this._options.webGL&&(e.webGL=this._options.webGL),this._options.forceWebGL&&(e.webGL="required"),this._frameSink=h.default.attach(this._canvas,e)}},{key:"_doProcessing",value:function _doProcessing(){if(this._didSeek&&(this._didSeek=!1),this._nextProcessingTimer=null,this._isProcessing(),this._depth>0)throw new Error("REENTRANCY FAIL: doProcessing recursing unexpectedly");var e=0;do{if(this._needProcessing=!1,this._depth++,this._doProcessingLoop(),this._depth--,this._needProcessing&&this._isProcessing())throw new Error("REENTRANCY FAIL: waiting on input or codec but asked to keep processing");++e>500&&(this._log("stuck in processing loop; breaking with timer"),this._needProcessing=0,this._pingProcessing(0))}while(this._needProcessing)}},{key:"_doProcessingLoop",value:function _doProcessingLoop(){if(this._actionQueue.length)this._actionQueue.shift()();else if(this._state==P.INITIAL)this._doProcessInitial();else if(this._state==P.SEEKING_END)this._doProcessSeekingEnd();else if(this._state==P.LOADED)this._doProcessLoaded();else if(this._state==P.PRELOAD)this._doProcessPreload();else if(this._state==P.READY)this._doProcessReady();else if(this._state==P.SEEKING)this._doProcessSeeking();else if(this._state==P.PLAYING)this._doProcessPlay();else{if(this._state!=P.ERROR)throw new Error("Unexpected OGVPlayer state "+this._state);this._doProcessError()}}},{key:"_doProcessInitial",value:function _doProcessInitial(){var e=this;if(this._codec.loadedMetadata){if(!this._codec.hasVideo&&!this._codec.hasAudio)throw new Error("No audio or video found, something is wrong");this._codec.hasAudio&&(this._audioInfo=this._codec.audioFormat),this._codec.hasVideo&&(this._videoInfo=this._codec.videoFormat,this._setupVideo()),isNaN(this._codec.duration)||(this._duration=this._codec.duration),null===this._duration&&this._stream.seekable?(this._state=P.SEEKING_END,this._lastSeenTimestamp=-1,this._codec.flush(function(){e._seekStream(Math.max(0,e._stream.length-131072))})):(this._state=P.LOADED,this._pingProcessing())}else this._codec.process(function(t){if(t)e._pingProcessing();else{if(e._streamEnded)throw new Error("end of file before headers found");e._log("reading more cause we are out of data"),e._readBytesAndWait()}})}},{key:"_doProcessSeekingEnd",value:function _doProcessSeekingEnd(){var e=this;this._codec.frameReady?(this._log("saw frame with "+this._codec.frameTimestamp),this._lastSeenTimestamp=Math.max(this._lastSeenTimestamp,this._codec.frameTimestamp),this._codec.discardFrame(function(){e._pingProcessing()})):this._codec.audioReady?(this._log("saw audio with "+this._codec.audioTimestamp),this._lastSeenTimestamp=Math.max(this._lastSeenTimestamp,this._codec.audioTimestamp),this._codec.discardAudio(function(){e._pingProcessing()})):this._codec.process(function(t){t?e._pingProcessing():e._stream.eof?(e._log("seek-duration: we are at the end: "+e._lastSeenTimestamp),e._lastSeenTimestamp>0&&(e._duration=e._lastSeenTimestamp),e._state=P.LOADED,e._codec.flush(function(){e._streamEnded=!1,e._dataEnded=!1,e._seekStream(0)})):e._readBytesAndWait()})}},{key:"_doProcessLoaded",value:function _doProcessLoaded(){this._state=P.PRELOAD,this._fireEventAsync("loadedmetadata"),this._fireEventAsync("durationchange"),this._codec.hasVideo&&this._fireEventAsync("resize"),this._pingProcessing(0)}},{key:"_doProcessPreload",value:function _doProcessPreload(){var e=this;!this._codec.frameReady&&this._codec.hasVideo||!this._codec.audioReady&&this._codec.hasAudio?this._codec.process(function(t){t?e._pingProcessing():e._streamEnded?e._ended=!0:e._readBytesAndWait()}):(this._state=P.READY,this._fireEventAsync("loadeddata"),this._pingProcessing())}},{key:"_doProcessReady",value:function _doProcessReady(){var e=this;if(this._log("initial seek to "+this._initialSeekTime),this._initialSeekTime>0){var t=this._initialSeekTime;this._initialSeekTime=0,this._log("initial seek to "+t),this._doSeek(t)}else if(this._paused)this._log("paused while in ready");else{var i=function finishStartPlaying(){e._log("finishStartPlaying"),e._state=P.PLAYING,e._lastFrameTimestamp=o(),e._codec.hasAudio&&e._audioFeeder?e._prebufferingAudio=!0:e._startPlayback(),e._pingProcessing(0),e._fireEventAsync("play"),e._fireEventAsync("playing")};!this._codec.hasAudio||this._audioFeeder||this._muted?i():(this._initAudioFeeder(),this._audioFeeder.waitUntilReady(i))}}},{key:"_doProcessSeeking",value:function _doProcessSeeking(){if(this._seekState==E.NOT_SEEKING)throw new Error("seeking in invalid state (not seeking?)");if(this._seekState==E.BISECT_TO_TARGET)this._doProcessBisectionSeek();else if(this._seekState==E.BISECT_TO_KEYPOINT)this._doProcessBisectionSeek();else{if(this._seekState!=E.LINEAR_TO_TARGET)throw new Error("Invalid seek state "+this._seekState);this._doProcessLinearSeeking()}}},{key:"_doProcessPlay",value:function _doProcessPlay(){var e=this,t=this._codec;if(this._paused)this._log("paused during playback; stopping loop");else if((!t.hasAudio||t.audioReady||this._pendingAudio||this._dataEnded)&&(!t.hasVideo||t.frameReady||this._pendingFrame||this._decodedFrames.length||this._dataEnded)){var i,r,n,o=null,a=0,s=!1,u=0;if(t.hasAudio&&this._audioFeeder?(o=this._audioFeeder.getPlaybackState(),a=this._getPlaybackTime(o),s=this._dataEnded&&0==this._audioFeeder.durationBuffered,this._prebufferingAudio&&(this._audioFeeder.durationBuffered>=2*this._audioFeeder.bufferThreshold&&(!t.hasVideo||this._decodedFrames.length>=this._framePipelineDepth)||this._dataEnded)&&(this._log("prebuffering audio done; buffered to "+this._audioFeeder.durationBuffered),this._startPlayback(a),this._prebufferingAudio=!1),o.dropped!=this._droppedAudio&&this._log("dropped "+(o.dropped-this._droppedAudio)),o.delayed!=this._delayedAudio&&this._log("delayed "+(o.delayed-this._delayedAudio)),this._droppedAudio=o.dropped,this._delayedAudio=o.delayed,(i=this._audioFeeder.durationBuffered<=2*this._audioFeeder.bufferThreshold)&&(this._codec.audioReady?this._pendingAudio>=this._audioPipelineDepth&&(this._log("audio decode disabled: "+this._pendingAudio+" packets in flight"),i=!1):i=!1)):(a=this._getPlaybackTime(),i=this._codec.audioReady&&this._audioEndTimestamp<a),this._codec.hasVideo){r=this._decodedFrames.length>0,n=this._pendingFrame+this._decodedFrames.length<this._framePipelineDepth+this._frameParallelism&&this._codec.frameReady,r&&(u=1e3*(this._decodedFrames[0].frameEndTimestamp-a),this._actualPerFrameTime=this._targetPerFrameTime-u);var d=this._targetPerFrameTime;if(this._prebufferingAudio)n&&this._log("decoding a frame during prebuffering"),r=!1;else if(r&&this._dataEnded&&s)this._log("audio timeline ended? ready to draw frame");else if(r&&-u>=d){for(var c=-1,f=0;f<this._decodedFrames.length-1;f++)this._decodedFrames[f].frameEndTimestamp<a&&(c=f-1);if(c>=0)for(;c-- >=0;){this._lateFrames++;var l=this._decodedFrames.shift();this._log("skipping already-decoded late frame at "+l.frameEndTimestamp),u=1e3*(l.frameEndTimestamp-a),this._frameEndTimestamp=l.frameEndTimestamp,this._actualPerFrameTime=this._targetPerFrameTime-u,this._framesProcessed++,l.dropped=!0,this._doFrameComplete(l)}var h=this._codec.nextKeyframeTimestamp,p=h-this._targetPerFrameTime/1e3*(this._framePipelineDepth+this._pendingFrame);if(h>=0&&h!=this._codec.frameTimestamp&&a>=p){this._log("skipping late frame at "+this._decodedFrames[0].frameEndTimestamp+" vs "+a+", expect to see keyframe at "+h);for(var _=0;_<this._decodedFrames.length;_++){var m=this._decodedFrames[_];this._lateFrames++,this._framesProcessed++,this._frameEndTimestamp=m.frameEndTimestamp,u=1e3*(m.frameEndTimestamp-a),this._actualPerFrameTime=this._targetPerFrameTime-u,m.dropped=!0,this._doFrameComplete(m)}this._decodedFrames=[];for(var g=0;g<this._pendingFrames.length;g++){var v=this._pendingFrames[g];this._lateFrames++,this._framesProcessed++,this._frameEndTimestamp=v.frameEndTimestamp,u=1e3*(v.frameEndTimestamp-a),this._actualPerFrameTime=this._targetPerFrameTime-u,v.dropped=!0,this._doFrameComplete(v)}for(this._pendingFrames=[],this._pendingFrame=0;this._codec.frameReady&&this._codec.frameTimestamp<h;){var y={frameEndTimestamp:this._codec.frameTimestamp,dropped:!0};u=1e3*(y.frameEndTimestamp-a),this._actualPerFrameTime=this._targetPerFrameTime-u,this._lateFrames++,this._codec.discardFrame(function(){}),this._framesProcessed++,this._doFrameComplete(y)}return void(this._isProcessing()||this._pingProcessing())}}else r&&u<=4||(r=!1)}if(n){this._log("play loop: ready to decode frame; thread depth: "+this._pendingFrame+", have buffered: "+this._decodedFrames.length),0==this._videoInfo.fps&&this._codec.frameTimestamp-this._frameEndTimestamp>0&&(this._targetPerFrameTime=1e3*(this._codec.frameTimestamp-this._frameEndTimestamp)),this._totalFrameTime+=this._targetPerFrameTime,this._totalFrameCount++;var b=this._frameEndTimestamp=this._codec.frameTimestamp;this._pendingFrame++,this._pendingFrames.push({frameEndTimestamp:b});var T=this._pendingFrames,k=!1,w=this._time(function(){e._codec.decodeFrame(function(t){T===e._pendingFrames?(e._log("play loop callback: decoded frame"),e._pendingFrame--,e._pendingFrames.shift(),t?e._decodedFrames.push({yCbCrBuffer:e._codec.frameBuffer,videoCpuTime:e._codec.videoCpuTime,frameEndTimestamp:b}):e._log("Bad video packet or something"),e._codec.process(function(){e._isProcessing()||e._pingProcessing(k?void 0:0)})):e._log("play loop callback after flush, discarding")})});this._pendingFrame&&(k=!0,this._proxyTime+=w,this._pingProcessing(),this._dataEnded&&this._codec.sync())}else if(i){this._log("play loop: ready for audio; depth: "+this._pendingAudio),this._pendingAudio++;var P=this._codec.audioTimestamp,E=this._time(function(){e._codec.decodeAudio(function(t){if(e._pendingAudio--,e._log("play loop callback: decoded audio"),e._audioEndTimestamp=P,t){var i=e._codec.audioBuffer;if(i&&(e._bufferTime+=e._time(function(){e._audioFeeder&&e._audioFeeder.bufferData(i)}),!e._codec.hasVideo)){e._framesProcessed++;var r={frameEndTimestamp:e._audioEndTimestamp};e._doFrameComplete(r)}}e._isProcessing()||e._pingProcessing()})});this._pendingAudio&&(this._proxyTime+=E,this._codec.audioReady?this._pingProcessing():this._doProcessPlayDemux())}else if(r){this._log("play loop: ready to draw frame"),this._nextFrameTimer&&(clearTimeout(this._nextFrameTimer),this._nextFrameTimer=null),this._thumbnail&&(this.removeChild(this._thumbnail),this._thumbnail=null);var A=this._decodedFrames.shift();this._currentVideoCpuTime=A.videoCpuTime,this._drawingTime+=this._time(function(){e._frameSink.drawFrame(A.yCbCrBuffer)}),this._framesProcessed++,this._doFrameComplete(A),this._pingProcessing()}else if(!this._decodedFrames.length||this._nextFrameTimer||this._prebufferingAudio)if(this._dataEnded&&!(this._pendingAudio||this._pendingFrame||this._decodedFrames.length)){this._log("play loop: playback reached end of data "+[this._pendingAudio,this._pendingFrame,this._decodedFrames.length]);var x=0;this._codec.hasAudio&&this._audioFeeder&&(x=1e3*this._audioFeeder.durationBuffered),x>0?(this._log("play loop: ending pending "+x+" ms"),this._pingProcessing(Math.max(0,x))):(this._log("play loop: ENDING NOW: playback time "+this._getPlaybackTime()+"; frameEndTimestamp: "+this._frameEndTimestamp),this._stopPlayback(),this._prebufferingAudio=!1,this._initialPlaybackOffset=Math.max(this._audioEndTimestamp,this._frameEndTimestamp),this._ended=!0,this._paused=!0,this._fireEventAsync("pause"),this._fireEventAsync("ended"))}else this._prebufferingAudio&&(t.hasVideo&&!t.frameReady||t.hasAudio&&!t.audioReady)?(this._log("play loop: prebuffering demuxing"),this._doProcessPlayDemux()):this._log("play loop: waiting on async/timers");else{var O=u;this._log("play loop: setting a timer for drawing "+O),this._nextFrameTimer=setTimeout(function(){e._nextFrameTimer=null,e._pingProcessing()},O)}}else this._log("play loop: demuxing"),this._doProcessPlayDemux()}},{key:"_doProcessPlayDemux",value:function _doProcessPlayDemux(){var e=this,t=this._codec.frameReady,i=this._codec.audioReady;this._codec.process(function(r){e._codec.frameReady&&!t||e._codec.audioReady&&!i?(e._log("demuxer has packets"),e._pingProcessing()):r?(e._log("demuxer processing to find more packets"),e._pingProcessing()):(e._log("demuxer ran out of data"),e._streamEnded?(e._log("demuxer reached end of data stream"),e._dataEnded=!0,e._pingProcessing()):(e._log("demuxer loading more data"),e._readBytesAndWait()))})}},{key:"_doProcessError",value:function _doProcessError(){}},{key:"_isProcessing",value:function _isProcessing(){return this._stream&&(this._stream.buffering||this._stream.seeking)||this._codec&&this._codec.processing}},{key:"_readBytesAndWait",value:function _readBytesAndWait(){var e=this;if(this._stream.buffering||this._stream.seeking)this._log("readBytesAndWait during i/o");else{this._stream.read(32768).then(function(t){e._log("got input "+[t.byteLength]),t.byteLength&&e._actionQueue.push(function(){e._codec.receiveInput(t,function(){e._pingProcessing()})}),e._stream.eof&&(e._log("stream is at end!"),e._streamEnded=!0),e._isProcessing()||e._pingProcessing()}).catch(function(t){e._onStreamError(t)})}}},{key:"_pingProcessing",value:function _pingProcessing(){var e=this,t=arguments.length>0&&void 0!==arguments[0]?arguments[0]:-1;if(this._stream&&this._stream.waiting)this._log("waiting on input");else{this._nextProcessingTimer&&(this._log("canceling old processing timer"),clearTimeout(this._nextProcessingTimer),this._nextProcessingTimer=null);t>-1/256?this._nextProcessingTimer=setTimeout(function(){e._pingProcessing()},t):this._depth?this._needProcessing=!0:this._doProcessing()}}},{key:"_startProcessingVideo",value:function _startProcessingVideo(e){var t=this;if(!this._started&&!this._codec){this._framesProcessed=0,this._bufferTime=0,this._drawingTime=0,this._proxyTime=0,this._started=!0,this._ended=!1;var i={base:this._options.base,worker:this._enableWorker,threading:this._enableThreading,wasm:this._enableWASM};this._options.memoryLimit&&!this._enableWASM&&(i.memoryLimit=this._options.memoryLimit),this._detectedType&&(i.type=this._detectedType),this._codec=new k.default(i),this._lastVideoCpuTime=0,this._lastAudioCpuTime=0,this._lastDemuxerCpuTime=0,this._lastBufferTime=0,this._lastDrawingTime=0,this._lastProxyTime=0,this._lastFrameVideoCpuTime=0,this._lastFrameAudioCpuTime=0,this._lastFrameDemuxerCpuTime=0,this._lastFrameBufferTime=0,this._lastFrameProxyTime=0,this._lastFrameDrawingTime=0,this._currentVideoCpuTime=0,this._codec.onseek=function(e){t._didSeek=!0,t._stream&&t._seekStream(e)},this._codec.init(function(){t._codec.receiveInput(e,function(){t._readBytesAndWait()})})}}},{key:"_loadCodec",value:function _loadCodec(e){var t=this;this._stream.read(1024).then(function(i){var r=new Uint8Array(i);r.length>4&&r[0]=="O".charCodeAt(0)&&r[1]=="g".charCodeAt(0)&&r[2]=="g".charCodeAt(0)&&r[3]=="S".charCodeAt(0)?t._detectedType="video/ogg":r.length>4&&26==r[0]&&69==r[1]&&223==r[2]&&163==r[3]?t._detectedType="video/webm":t._detectedType="video/ogg",e(i)})}},{key:"_prepForLoad",value:function _prepForLoad(e){var t=this;this._stopVideo();this._currentSrc="",this._loading=!0,this._actionQueue.push(function(){e&&"none"===t.preload?t._loading=!1:function doLoad(){t._options.stream?t._stream=t._options.stream:t._stream=new p.default({url:t.src,cacheSize:16777216,progressive:!1}),t._stream.load().then(function(){t._loading=!1,t._currentSrc=t.src,t._byteLength=t._stream.seekable?t._stream.length:0;var e=t._stream.headers["x-content-duration"];"string"==typeof e&&(t._duration=parseFloat(e)),t._loadCodec(function(e){t._startProcessingVideo(e)})}).catch(function(e){t._onStreamError(e)})}()}),this._pingProcessing(0)}},{key:"load",value:function load(){this._prepForLoad()}},{key:"canPlayType",value:function canPlayType(e){var t=new b.default(e);function checkTypes(e){if(t.codecs){var i=0,r=0;return t.codecs.forEach(function(t){e.indexOf(t)>=0?i++:r++}),0===i?"":r>0?"":"probably"}return"maybe"}return"ogg"!==t.minor||"audio"!==t.major&&"video"!==t.major&&"application"!==t.major?"webm"!==t.minor||"audio"!==t.major&&"video"!==t.major?"":checkTypes(["vorbis","opus","vp8","vp9"]):checkTypes(["vorbis","opus","theora"])}},{key:"play",value:function play(){this._muted||this._options.audioContext||OGVPlayer.initSharedAudioContext(),this._paused&&(this._startedPlaybackInDocument=document.body.contains(this),this._paused=!1,this._state==P.SEEKING||(this._started&&this._codec&&this._codec.loadedMetadata?(this._ended&&this._stream&&this._byteLength?(this._log(".play() starting over after end"),this._seek(0)):this._log(".play() while already started"),this._state=P.READY,this._isProcessing()||this._pingProcessing()):this._loading?this._log(".play() while loading"):(this._log(".play() before started"),this._stream||this.load())))}},{key:"getPlaybackStats",value:function getPlaybackStats(){return{targetPerFrameTime:this._targetPerFrameTime,framesProcessed:this._framesProcessed,videoBytes:this._codec?this._codec.videoBytes:0,audioBytes:this._codec?this._codec.audioBytes:0,playTime:this._playTime,demuxingTime:this._codec?this._codec.demuxerCpuTime-this._lastDemuxerCpuTime:0,videoDecodingTime:this._codec?this._codec.videoCpuTime-this._lastVideoCpuTime:0,audioDecodingTime:this._codec?this._codec.audioCpuTime-this._lastAudioCpuTime:0,bufferTime:this._bufferTime-this._lastBufferTime,drawingTime:this._drawingTime-this._lastDrawingTime,proxyTime:this._proxyTime-this._lastProxyTime,droppedAudio:this._droppedAudio,delayedAudio:this._delayedAudio,jitter:this._totalJitter/this._framesProcessed,lateFrames:this._lateFrames}}},{key:"resetPlaybackStats",value:function resetPlaybackStats(){this._framesProcessed=0,this._playTime=0,this._codec&&(this._lastDemuxerCpuTime=this._codec.demuxerCpuTime,this._lastVideoCpuTime=this._codec.videoCpuTime,this._lastAudioCpuTime=this._codec.audioCpuTime,this._codec.videoBytes=0,this._codec.audioBytes=0),this._lastBufferTime=this._bufferTime,this._lastDrawingTime=this._drawingTime,this._lastProxyTime=this._proxyTime,this._totalJitter=0,this._totalFrameTime=0,this._totalFrameCount=0}},{key:"getVideoFrameSink",value:function getVideoFrameSink(){return this._frameSink}},{key:"getCanvas",value:function getCanvas(){return this._canvas}},{key:"pause",value:function pause(){this._paused||(this._nextProcessingTimer&&(clearTimeout(this._nextProcessingTimer),this._nextProcessingTimer=null),this._stopPlayback(),this._prebufferingAudio=!1,this._paused=!0,this._fireEvent("pause"))}},{key:"stop",value:function stop(){this._stopVideo(),this._paused=!0}},{key:"fastSeek",value:function 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initResampleCanvas(e,t){(n=document.createElement("canvas")).width=e,n.height=t,o=n.getContext("2d")}(s.cropWidth,s.cropHeight),u=o):u=t,u.putImageData(i,-s.cropLeft,-s.cropTop,s.cropLeft,s.cropTop,s.cropWidth,s.cropHeight),d&&t.drawImage(n,0,0,s.displayWidth,s.displayHeight)},this.clear=function(){t.clearRect(0,0,e.width,e.height)},this}SoftwareFrameSink.prototype=Object.create(t.prototype),e.exports=SoftwareFrameSink}()},function(e,t,i){!function(){"use strict";var t=i(37);
/**
	 * Basic YCbCr->RGB conversion
	 *
	 * @author Brion Vibber <brion@pobox.com>
	 * @copyright 2014-2019
	 * @license MIT-style
	 *
	 * @param {YUVFrame} buffer - input frame buffer
	 * @param {Uint8ClampedArray} output - array to draw RGBA into
	 * Assumes that the output array already has alpha channel set to opaque.
	 */e.exports={convertYCbCr:function convertYCbCr(e,i){var r=0|e.format.width,n=0|e.format.height,o=0|t(e.format.width/e.format.chromaWidth),a=0|t(e.format.height/e.format.chromaHeight),s=e.y.bytes,u=e.u.bytes,d=e.v.bytes,c=0|e.y.stride,f=0|e.u.stride,l=0|e.v.stride,h=r<<2,p=0,_=0,m=0,g=0,v=0,y=0,b=0,T=0,k=0,w=0,P=0,E=0,A=0,x=0,O=0,S=0,R=0,F=0;if(1==o&&1==a)for(b=0,T=h,F=0,S=0;S<n;S+=2){for(m=(_=S*c|0)+c|0,g=F*f|0,v=F*l|0,O=0;O<r;O+=2)k=0|u[g++],E=(409*(w=0|d[v++])|0)-57088|0,A=(100*k|0)+(208*w|0)-34816|0,x=(516*k|0)-70912|0,P=298*s[_++]|0,i[b]=P+E>>8,i[b+1]=P-A>>8,i[b+2]=P+x>>8,b+=4,P=298*s[_++]|0,i[b]=P+E>>8,i[b+1]=P-A>>8,i[b+2]=P+x>>8,b+=4,P=298*s[m++]|0,i[T]=P+E>>8,i[T+1]=P-A>>8,i[T+2]=P+x>>8,T+=4,P=298*s[m++]|0,i[T]=P+E>>8,i[T+1]=P-A>>8,i[T+2]=P+x>>8,T+=4;b+=h,T+=h,F++}else for(y=0,S=0;S<n;S++)for(R=0,p=S*c|0,g=(F=S>>a)*f|0,v=F*l|0,O=0;O<r;O++)k=0|u[g+(R=O>>o)],E=(409*(w=0|d[v+R])|0)-57088|0,A=(100*k|0)+(208*w|0)-34816|0,x=(516*k|0)-70912|0,P=298*s[p++]|0,i[y]=P+E>>8,i[y+1]=P-A>>8,i[y+2]=P+x>>8,y+=4}}}()},function(e,t){!function(){"use strict";
/**
   * Convert a ratio into a bit-shift count; for instance a ratio of 2
   * becomes a bit-shift of 1, while a ratio of 1 is a bit-shift of 0.
   *
   * @author Brion Vibber <brion@pobox.com>
   * @copyright 2016
   * @license MIT-style
   *
   * @param {number} ratio - the integer ratio to convert.
   * @returns {number} - number of bits to shift to multiply/divide by the ratio.
   * @throws exception if given a non-power-of-two
   */e.exports=function depower(e){for(var t=0,i=e>>1;0!=i;)i>>=1,t++;if(e!==1<<t)throw"chroma plane dimensions must be power of 2 ratio to luma plane dimensions; got "+e;return t}}()},function(e,t,i){!function(){"use strict";var t=i(9),r=i(39);function WebGLFrameSink(e){var t,i,n=this,o=WebGLFrameSink.contextForCanvas(e);if(null===o)throw new Error("WebGL unavailable");function compileShader(e,t){var i=o.createShader(e);if(o.shaderSource(i,t),o.compileShader(i),!o.getShaderParameter(i,o.COMPILE_STATUS)){var r=o.getShaderInfoLog(i);throw o.deleteShader(i),new Error("GL shader compilation for "+e+" failed: "+r)}return i}var a,s,u,d,c,f,l,h,p,_,m=new Float32Array([-1,-1,1,-1,-1,1,-1,1,1,-1,1,1]),g={},v={},y={};function createOrReuseTexture(e){return g[e]||(g[e]=o.createTexture()),g[e]}function uploadTexture(e,t,i,r){var n=createOrReuseTexture(e);if(o.activeTexture(o.TEXTURE0),WebGLFrameSink.stripe){var a=!g[e+"_temp"],s=createOrReuseTexture(e+"_temp");o.bindTexture(o.TEXTURE_2D,s),a?(o.texParameteri(o.TEXTURE_2D,o.TEXTURE_WRAP_S,o.CLAMP_TO_EDGE),o.texParameteri(o.TEXTURE_2D,o.TEXTURE_WRAP_T,o.CLAMP_TO_EDGE),o.texParameteri(o.TEXTURE_2D,o.TEXTURE_MIN_FILTER,o.NEAREST),o.texParameteri(o.TEXTURE_2D,o.TEXTURE_MAG_FILTER,o.NEAREST),o.texImage2D(o.TEXTURE_2D,0,o.RGBA,t/4,i,0,o.RGBA,o.UNSIGNED_BYTE,r)):o.texSubImage2D(o.TEXTURE_2D,0,0,0,t/4,i,o.RGBA,o.UNSIGNED_BYTE,r);var u=g[e+"_stripe"],d=!u;d&&(u=createOrReuseTexture(e+"_stripe")),o.bindTexture(o.TEXTURE_2D,u),d&&(o.texParameteri(o.TEXTURE_2D,o.TEXTURE_WRAP_S,o.CLAMP_TO_EDGE),o.texParameteri(o.TEXTURE_2D,o.TEXTURE_WRAP_T,o.CLAMP_TO_EDGE),o.texParameteri(o.TEXTURE_2D,o.TEXTURE_MIN_FILTER,o.NEAREST),o.texParameteri(o.TEXTURE_2D,o.TEXTURE_MAG_FILTER,o.NEAREST),o.texImage2D(o.TEXTURE_2D,0,o.RGBA,t,1,0,o.RGBA,o.UNSIGNED_BYTE,function buildStripe(e){if(y[e])return y[e];for(var t=e,i=new Uint32Array(t),r=0;r<t;r+=4)i[r]=255,i[r+1]=65280,i[r+2]=16711680,i[r+3]=4278190080;return y[e]=new Uint8Array(i.buffer)}(t)))}else o.bindTexture(o.TEXTURE_2D,n),o.texParameteri(o.TEXTURE_2D,o.TEXTURE_WRAP_S,o.CLAMP_TO_EDGE),o.texParameteri(o.TEXTURE_2D,o.TEXTURE_WRAP_T,o.CLAMP_TO_EDGE),o.texParameteri(o.TEXTURE_2D,o.TEXTURE_MIN_FILTER,o.LINEAR),o.texParameteri(o.TEXTURE_2D,o.TEXTURE_MAG_FILTER,o.LINEAR),o.texImage2D(o.TEXTURE_2D,0,o.LUMINANCE,t,i,0,o.LUMINANCE,o.UNSIGNED_BYTE,r)}function unpackTexture(e,t,r){var n=g[e];o.useProgram(i);var l=v[e];l||(o.activeTexture(o.TEXTURE0),o.bindTexture(o.TEXTURE_2D,n),o.texParameteri(o.TEXTURE_2D,o.TEXTURE_WRAP_S,o.CLAMP_TO_EDGE),o.texParameteri(o.TEXTURE_2D,o.TEXTURE_WRAP_T,o.CLAMP_TO_EDGE),o.texParameteri(o.TEXTURE_2D,o.TEXTURE_MIN_FILTER,o.LINEAR),o.texParameteri(o.TEXTURE_2D,o.TEXTURE_MAG_FILTER,o.LINEAR),o.texImage2D(o.TEXTURE_2D,0,o.RGBA,t,r,0,o.RGBA,o.UNSIGNED_BYTE,null),l=v[e]=o.createFramebuffer()),o.bindFramebuffer(o.FRAMEBUFFER,l),o.framebufferTexture2D(o.FRAMEBUFFER,o.COLOR_ATTACHMENT0,o.TEXTURE_2D,n,0);var h=g[e+"_temp"];o.activeTexture(o.TEXTURE1),o.bindTexture(o.TEXTURE_2D,h),o.uniform1i(f,1);var p=g[e+"_stripe"];o.activeTexture(o.TEXTURE2),o.bindTexture(o.TEXTURE_2D,p),o.uniform1i(c,2),o.bindBuffer(o.ARRAY_BUFFER,a),o.enableVertexAttribArray(s),o.vertexAttribPointer(s,2,o.FLOAT,!1,0,0),o.bindBuffer(o.ARRAY_BUFFER,u),o.enableVertexAttribArray(d),o.vertexAttribPointer(d,2,o.FLOAT,!1,0,0),o.viewport(0,0,t,r),o.drawArrays(o.TRIANGLES,0,m.length/2),o.bindFramebuffer(o.FRAMEBUFFER,null)}function attachTexture(e,i,r){o.activeTexture(i),o.bindTexture(o.TEXTURE_2D,g[e]),o.texParameteri(o.TEXTURE_2D,o.TEXTURE_WRAP_S,o.CLAMP_TO_EDGE),o.texParameteri(o.TEXTURE_2D,o.TEXTURE_WRAP_T,o.CLAMP_TO_EDGE),o.texParameteri(o.TEXTURE_2D,o.TEXTURE_MIN_FILTER,o.LINEAR),o.texParameteri(o.TEXTURE_2D,o.TEXTURE_MAG_FILTER,o.LINEAR),o.uniform1i(o.getUniformLocation(t,e),r)}function initProgram(e,t){var i=compileShader(o.VERTEX_SHADER,e),r=compileShader(o.FRAGMENT_SHADER,t),n=o.createProgram();if(o.attachShader(n,i),o.attachShader(n,r),o.linkProgram(n),!o.getProgramParameter(n,o.LINK_STATUS)){var a=o.getProgramInfoLog(n);throw o.deleteProgram(n),new Error("GL program linking failed: "+a)}return n}return n.drawFrame=function(g){var v=g.format,y=!t||e.width!==v.displayWidth||e.height!==v.displayHeight;if(y&&(e.width=v.displayWidth,e.height=v.displayHeight,n.clear()),t||function init(){if(WebGLFrameSink.stripe){i=initProgram(r.vertexStripe,r.fragmentStripe),o.getAttribLocation(i,"aPosition"),u=o.createBuffer();var e=new Float32Array([0,0,1,0,0,1,0,1,1,0,1,1]);o.bindBuffer(o.ARRAY_BUFFER,u),o.bufferData(o.ARRAY_BUFFER,e,o.STATIC_DRAW),d=o.getAttribLocation(i,"aTexturePosition"),c=o.getUniformLocation(i,"uStripe"),f=o.getUniformLocation(i,"uTexture")}t=initProgram(r.vertex,r.fragment),a=o.createBuffer(),o.bindBuffer(o.ARRAY_BUFFER,a),o.bufferData(o.ARRAY_BUFFER,m,o.STATIC_DRAW),s=o.getAttribLocation(t,"aPosition"),l=o.createBuffer(),h=o.getAttribLocation(t,"aLumaPosition"),p=o.createBuffer(),_=o.getAttribLocation(t,"aChromaPosition")}(),y){var b=function(e,t,i){var r=v.cropLeft/i,n=(v.cropLeft+v.cropWidth)/i,a=(v.cropTop+v.cropHeight)/v.height,s=v.cropTop/v.height,u=new Float32Array([r,a,n,a,r,s,r,s,n,a,n,s]);o.bindBuffer(o.ARRAY_BUFFER,e),o.bufferData(o.ARRAY_BUFFER,u,o.STATIC_DRAW)};b(l,0,g.y.stride),b(p,0,g.u.stride*v.width/v.chromaWidth)}uploadTexture("uTextureY",g.y.stride,v.height,g.y.bytes),uploadTexture("uTextureCb",g.u.stride,v.chromaHeight,g.u.bytes),uploadTexture("uTextureCr",g.v.stride,v.chromaHeight,g.v.bytes),WebGLFrameSink.stripe&&(unpackTexture("uTextureY",g.y.stride,v.height),unpackTexture("uTextureCb",g.u.stride,v.chromaHeight),unpackTexture("uTextureCr",g.v.stride,v.chromaHeight)),o.useProgram(t),o.viewport(0,0,e.width,e.height),attachTexture("uTextureY",o.TEXTURE0,0),attachTexture("uTextureCb",o.TEXTURE1,1),attachTexture("uTextureCr",o.TEXTURE2,2),o.bindBuffer(o.ARRAY_BUFFER,a),o.enableVertexAttribArray(s),o.vertexAttribPointer(s,2,o.FLOAT,!1,0,0),o.bindBuffer(o.ARRAY_BUFFER,l),o.enableVertexAttribArray(h),o.vertexAttribPointer(h,2,o.FLOAT,!1,0,0),o.bindBuffer(o.ARRAY_BUFFER,p),o.enableVertexAttribArray(_),o.vertexAttribPointer(_,2,o.FLOAT,!1,0,0),o.drawArrays(o.TRIANGLES,0,m.length/2)},n.clear=function(){o.viewport(0,0,e.width,e.height),o.clearColor(0,0,0,0),o.clear(o.COLOR_BUFFER_BIT)},n.clear(),n}WebGLFrameSink.stripe=-1!==navigator.userAgent.indexOf("Windows"),WebGLFrameSink.contextForCanvas=function(e){var t={preferLowPowerToHighPerformance:!0,powerPreference:"low-power",failIfMajorPerformanceCaveat:!0,preserveDrawingBuffer:!0};return e.getContext("webgl",t)||e.getContext("experimental-webgl",t)},WebGLFrameSink.isAvailable=function(){var e,t=document.createElement("canvas");t.width=1,t.height=1;try{e=WebGLFrameSink.contextForCanvas(t)}catch(e){return!1}if(e){var i=e.TEXTURE0,r=e.createTexture(),n=new Uint8Array(16),o=WebGLFrameSink.stripe?1:4,a=WebGLFrameSink.stripe?e.RGBA:e.LUMINANCE,s=WebGLFrameSink.stripe?e.NEAREST:e.LINEAR;return e.activeTexture(i),e.bindTexture(e.TEXTURE_2D,r),e.texParameteri(e.TEXTURE_2D,e.TEXTURE_WRAP_S,e.CLAMP_TO_EDGE),e.texParameteri(e.TEXTURE_2D,e.TEXTURE_WRAP_T,e.CLAMP_TO_EDGE),e.texParameteri(e.TEXTURE_2D,e.TEXTURE_MIN_FILTER,s),e.texParameteri(e.TEXTURE_2D,e.TEXTURE_MAG_FILTER,s),e.texImage2D(e.TEXTURE_2D,0,a,o,4,0,a,e.UNSIGNED_BYTE,n),!e.getError()}return!1},WebGLFrameSink.prototype=Object.create(t.prototype),e.exports=WebGLFrameSink}()},function(e,t){e.exports={vertex:"precision lowp float;\n\nattribute vec2 aPosition;\nattribute vec2 aLumaPosition;\nattribute vec2 aChromaPosition;\nvarying vec2 vLumaPosition;\nvarying vec2 vChromaPosition;\nvoid main() {\n    gl_Position = vec4(aPosition, 0, 1);\n    vLumaPosition = aLumaPosition;\n    vChromaPosition = aChromaPosition;\n}\n",fragment:"// inspired by https://github.com/mbebenita/Broadway/blob/master/Player/canvas.js\n\nprecision lowp float;\n\nuniform sampler2D uTextureY;\nuniform sampler2D uTextureCb;\nuniform sampler2D uTextureCr;\nvarying vec2 vLumaPosition;\nvarying vec2 vChromaPosition;\nvoid main() {\n   // Y, Cb, and Cr planes are uploaded as LUMINANCE textures.\n   float fY = texture2D(uTextureY, vLumaPosition).x;\n   float fCb = texture2D(uTextureCb, vChromaPosition).x;\n   float fCr = texture2D(uTextureCr, vChromaPosition).x;\n\n   // Premultipy the Y...\n   float fYmul = fY * 1.1643828125;\n\n   // And convert that to RGB!\n   gl_FragColor = vec4(\n     fYmul + 1.59602734375 * fCr - 0.87078515625,\n     fYmul - 0.39176171875 * fCb - 0.81296875 * fCr + 0.52959375,\n     fYmul + 2.017234375   * fCb - 1.081390625,\n     1\n   );\n}\n",vertexStripe:"precision lowp float;\n\nattribute vec2 aPosition;\nattribute vec2 aTexturePosition;\nvarying vec2 vTexturePosition;\n\nvoid main() {\n    gl_Position = vec4(aPosition, 0, 1);\n    vTexturePosition = aTexturePosition;\n}\n",fragmentStripe:"// extra 'stripe' texture fiddling to work around IE 11's poor performance on gl.LUMINANCE and gl.ALPHA textures\n\nprecision lowp float;\n\nuniform sampler2D uStripe;\nuniform sampler2D uTexture;\nvarying vec2 vTexturePosition;\nvoid main() {\n   // Y, Cb, and Cr planes are mapped into a pseudo-RGBA texture\n   // so we can upload them without expanding the bytes on IE 11\n   // which doesn't allow LUMINANCE or ALPHA textures\n   // The stripe textures mark which channel to keep for each pixel.\n   // Each texture extraction will contain the relevant value in one\n   // channel only.\n\n   float fLuminance = dot(\n      texture2D(uStripe, vTexturePosition),\n      texture2D(uTexture, vTexturePosition)\n   );\n\n   gl_FragColor = vec4(fLuminance, fLuminance, fLuminance, 1);\n}\n"}},function(e,t,i){"use strict";var r=function(){function defineProperties(e,t){for(var i=0;i<t.length;i++){var r=t[i];r.enumerable=r.enumerable||!1,r.configurable=!0,"value"in r&&(r.writable=!0),Object.defineProperty(e,r.key,r)}}return function(e,t,i){return t&&defineProperties(e.prototype,t),i&&defineProperties(e,i),e}}();i(17);var n=i(41),o=i(44),a=function(){function StreamFile(e){var t=e.url,i=void 0===t?"":t,r=e.chunkSize,o=void 0===r?1048576:r,a=e.cacheSize,s=void 0===a?0:a,u=e.progressive,d=void 0===u||u;!function _classCallCheck(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}(this,StreamFile),this.length=-1,this.loaded=!1,this.loading=!1,this.seekable=!1,this.buffering=!1,this.seeking=!1,this.progressive=d,Object.defineProperties(this,{offset:{get:function get(){return this._cache.readOffset}},eof:{get:function get(){return this.length===this._cache.readOffset}}}),this.url=i,this.headers={},this._cache=new n({cacheSize:s}),this._backend=null,this._cachever=0,this._chunkSize=o}return r(StreamFile,[{key:"load",value:function load(){var e=this;return new Promise(function(t,i){if(e.loading)throw new Error("cannot load when loading");if(e.loaded)throw new Error("cannot load when loaded");e.loading=!0,e._openBackend().then(function(i){e.seekable=i.seekable,e.headers=i.headers,e.length=i.length,e.loaded=!0,e.loading=!1,t()}).catch(function(t){"AbortError"!==t.name&&(e.loading=!1),i(t)})})}},{key:"_openBackend",value:function _openBackend(){var e=this;return new Promise(function(t,i){if(e._backend)t(e._backend);else if(e.eof)i(new Error("cannot open at end of file"));else{var r=e._cache,n=e._chunkSize,a=r.bytesReadable(n),s=r.readOffset+a;if(r.seekWrite(s),e.length>=0&&s>=e.length)return void t(null);var u=e._clampToLength(r.writeOffset+r.bytesWritable(n))-r.writeOffset;0===u?t(null):(d=e._backend=new o({url:e.url,offset:e._cache.writeOffset,length:u,cachever:e._cachever,progressive:e.progressive}),c=null,f=function checkOpen(){d!==e._backend?(c(),i(new Error("invalid state"))):(d.on("buffer",function(t){d===e._backend&&e._cache.write(t)}),d.on("done",function(){d===e._backend&&(-1===e.length&&(e.length=e._backend.offset+e._backend.bytesRead),e._backend=null)}),t(d))},l=function checkError(t){d!==e._backend?i(new Error("invalid state")):(e._backend=null,i(t))},c=function oncomplete(){d.off("open",f),d.off("error",l)},d.on("open",f),d.on("error",l),d.on("cachever",function(){e._cachever++}),d.load())}var d,c,f,l})}},{key:"_readAhead",value:function _readAhead(){var e=this;return new Promise(function(t,i){e._backend||e.eof?t():e._openBackend().then(function(){t()}).catch(function(e){i(e)})})}},{key:"seek",value:function seek(e){var t=this;return new Promise(function(i,r){if(!t.loaded||t.buffering||t.seeking)throw new Error("invalid state");if(e!==(0|e)||e<0)throw new Error("invalid input");if(t.length>=0&&e>t.length)throw new Error("seek past end of file");if(!t.seekable)throw new Error("seek on non-seekable stream");t._backend&&t.abort(),t._cache.seekRead(e),t._cache.seekWrite(e),t._readAhead().then(i).catch(r)})}},{key:"read",value:function read(e){var t=this;return this.buffer(e).then(function(e){return t.readSync(e)})}},{key:"readSync",value:function readSync(e){var t=this.bytesAvailable(e),i=new Uint8Array(t);if(this.readBytes(i)!==t)throw new Error("failed to read expected data");return i.buffer}},{key:"readBytes",value:function readBytes(e){if(!this.loaded||this.buffering||this.seeking)throw new Error("invalid state");if(!(e instanceof Uint8Array))throw new Error("invalid input");var t=this._cache.readBytes(e);return this._readAhead(),t}},{key:"buffer",value:function buffer(e){var t=this;return new Promise(function(i,r){if(!t.loaded||t.buffering||t.seeking)throw new Error("invalid state");if(e!==(0|e)||e<0)throw new Error("invalid input");var n=t._clampToLength(t.offset+e),o=n-t.offset,a=t.bytesAvailable(o);a>=o?i(a):(t.buffering=!0,t._openBackend().then(function(i){return i?i.bufferToOffset(n).then(function(){return t.buffering=!1,t.buffer(e)}):Promise.resolve(a)}).then(function(e){t.buffering=!1,i(e)}).catch(function(e){"AbortError"!==e.name&&(t.buffering=!1),r(e)}))})}},{key:"bytesAvailable",value:function bytesAvailable(){var e=arguments.length>0&&void 0!==arguments[0]?arguments[0]:1/0;return this._cache.bytesReadable(e)}},{key:"abort",value:function abort(){this.loading&&(this.loading=!1),this.buffering&&(this.buffering=!1),this.seeking&&(this.seeking=!1),this._backend&&(this._backend.abort(),this._backend=null)}},{key:"getBufferedRanges",value:function getBufferedRanges(){return this._cache.ranges()}},{key:"_clampToLength",value:function _clampToLength(e){return this.length<0?e:Math.min(this.length,e)}}]),StreamFile}();e.exports=a},function(e,t,i){"use strict";e.exports=i(42)},function(e,t,i){"use strict";var r=function(){function defineProperties(e,t){for(var i=0;i<t.length;i++){var r=t[i];r.enumerable=r.enumerable||!1,r.configurable=!0,"value"in r&&(r.writable=!0),Object.defineProperty(e,r.key,r)}}return function(e,t,i){return t&&defineProperties(e.prototype,t),i&&defineProperties(e,i),e}}();var n=i(43),o=function(){function CachePool(){var e=(arguments.length>0&&void 0!==arguments[0]?arguments[0]:{}).cacheSize,t=void 0===e?0:e;!function _classCallCheck(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}(this,CachePool);var i=new n({eof:!0});this.head=i,this.tail=i,this.readOffset=0,this.readCursor=i,this.writeOffset=0,this.writeCursor=i,this.cacheSize=t}return r(CachePool,[{key:"bytesReadable",value:function bytesReadable(){var e=arguments.length>0&&void 0!==arguments[0]?arguments[0]:1/0,t=this.readOffset,i=this.readCursor.last(function(i){return!i.empty&&i.start<=t+e});return i?Math.min(e,i.end-t):0}},{key:"bytesWritable",value:function bytesWritable(){var e=arguments.length>0&&void 0!==arguments[0]?arguments[0]:1/0,t=this.writeOffset,i=this.writeCursor;if(i.eof)return e;var r=i.last(function(i){return i.empty&&i.start<=t+e});return r?Math.min(e,r.end-t):0}},{key:"seekRead",value:function seekRead(e){var t=this.head.first(function(t){return t.contains(e)});if(!t)throw new Error("read seek out of range");this.readOffset=e,this.readCursor=t}},{key:"seekWrite",value:function seekWrite(e){var t=this.head.first(function(t){return t.contains(e)});if(!t)throw new Error("write seek out of range");this.writeOffset=e,this.writeCursor=t}},{key:"readBytes",value:function readBytes(e){for(var t=e.byteLength,i=this.bytesReadable(t),r=this.readOffset,n=r+i,o=r,a=this.readCursor;a&&!a.empty&&!(a.start>=n);a=a.next){var s=Math.min(n,a.end),u=e.subarray(o-r,s-r);a.readBytes(u,o,s),o=s}return this.readOffset=o,this.readCursor=this.readCursor.first(function(e){return e.contains(o)}),i}},{key:"write",value:function write(e){var t=this.bufferItem(e),i=this.writeCursor;if(!i.empty)throw new Error("write cursor not empty");if(!i.contains(t.end)&&i.end!==t.end)throw new Error("write cursor too small");i.start<t.start&&(this.split(i,t.start),i=this.writeCursor),(t.end<i.end||i.eof)&&(this.split(i,t.end),i=this.writeCursor),this.splice(i,i,t,t),this.writeOffset=t.end,this.writeCursor=t.next,this.gc()}},{key:"bufferItem",value:function bufferItem(e){if(e instanceof ArrayBuffer)return new n({start:this.writeOffset,end:this.writeOffset+e.byteLength,buffer:e});if("string"==typeof e)return new n({start:this.writeOffset,end:this.writeOffset+e.length,string:e});throw new Error("invalid input to write")}},{key:"split",value:function split(e,t){var i=e.split(t);this.splice(e,e,i[0],i[1])}},{key:"ranges",value:function ranges(){for(var ranges=[],e=this.head;e;e=e.next)if(!e.empty){var t=e;e=e.last(function(e){return!e.empty}),ranges.push([t.start,e.end])}return ranges}},{key:"gc",value:function gc(){for(var e=0,t=[],i=this.head;i;i=i.next)i.empty||(e+=i.length,(i.end<this.readOffset||i.start>this.readOffset+this.chunkSize)&&t.push(i));if(e>this.cacheSize){t.sort(function(e,t){return e.timestamp-t.timestamp});for(var r=0;r<t.length;r++){var n=t[r];if(e<=this.cacheSize)break;this.remove(n),e-=n.length}}}},{key:"remove",value:function remove(e){var t=new n({start:e.start,end:e.end});this.splice(e,e,t,t),(e=t).prev&&e.prev.empty&&(e=this.consolidate(e.prev)),e.next&&e.next.empty&&!e.next.eof&&(e=this.consolidate(e)),0===e.start&&(this.head=e)}},{key:"consolidate",value:function consolidate(e){var t=e.last(function(e){return e.empty&&!e.eof}),i=new n({start:e.start,end:t.end});return this.splice(e,t,i,i),i}},{key:"splice",value:function splice(e,t,i,r){var n=this;if(e.start!==i.start)throw new Error("invalid splice head");if(!(t.end===r.end||t.eof&&r.eof))throw new Error("invalid splice tail");var o=e.prev,a=t.next;e.prev=null,t.next=null,o&&(o.next=i,i.prev=o),a&&(a.prev=r,r.next=a),e===this.head&&(this.head=i),t===this.tail&&(this.tail=r),this.readCursor=this.head.first(function(e){return e.contains(n.readOffset)}),this.writeCursor=this.head.first(function(e){return e.contains(n.writeOffset)})}},{key:"eof",get:function get(){return this.readCursor.eof}}]),CachePool}();e.exports=o},function(e,t,i){"use strict";var r=function(){function defineProperties(e,t){for(var i=0;i<t.length;i++){var r=t[i];r.enumerable=r.enumerable||!1,r.configurable=!0,"value"in r&&(r.writable=!0),Object.defineProperty(e,r.key,r)}}return function(e,t,i){return t&&defineProperties(e.prototype,t),i&&defineProperties(e,i),e}}();var n=function(){function CacheItem(){var e=arguments.length>0&&void 0!==arguments[0]?arguments[0]:{},t=e.buffer,i=void 0===t?void 0:t,r=e.string,n=void 0===r?void 0:r,o=e.start,a=void 0===o?0:o,s=e.end,u=void 0===s?a+(i?i.byteLength:n?n.length:0):s,d=e.prev,c=void 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n=i(10),o="moz-chunked-arraybuffer",a=function(e){function MozChunkedBackend(){return function _classCallCheck(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}(this,MozChunkedBackend),function _possibleConstructorReturn(e,t){if(!e)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return!t||"object"!=typeof t&&"function"!=typeof t?e:t}(this,(MozChunkedBackend.__proto__||Object.getPrototypeOf(MozChunkedBackend)).apply(this,arguments))}return function _inherits(e,t){if("function"!=typeof t&&null!==t)throw new TypeError("Super expression must either be null or a function, not "+typeof t);e.prototype=Object.create(t&&t.prototype,{constructor:{value:e,enumerable:!1,writable:!0,configurable:!0}}),t&&(Object.setPrototypeOf?Object.setPrototypeOf(e,t):e.__proto__=t)}(MozChunkedBackend,n),r(MozChunkedBackend,[{key:"initXHR",value:function initXHR(){(function get(e,t,i){null===e&&(e=Function.prototype);var 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__webpack_require__(i){if(t[i])return t[i].exports;var r=t[i]={exports:{},id:i,loaded:!1};return e[i].call(r.exports,r,r.exports,__webpack_require__),r.loaded=!0,r.exports}return __webpack_require__.m=e,__webpack_require__.c=t,__webpack_require__.p="",__webpack_require__(0)}([function(e,t,i){!function(){i(1);var t=i(2),r=i(4),n=i(6);function AudioFeeder(e){this._options=e||{},this._backend=null,this._resampleFractional=0,this._resampleLastSampleData=void 0,this._tempoChanger=null}AudioFeeder.prototype.rate=0,AudioFeeder.prototype.targetRate=0,AudioFeeder.prototype.channels=0,AudioFeeder.prototype.bufferSize=0,Object.defineProperty(AudioFeeder.prototype,"bufferDuration",{get:function getBufferDuration(){return this.targetRate?this.bufferSize/this.targetRate:0}}),Object.defineProperty(AudioFeeder.prototype,"bufferThreshold",{get:function getBufferThreshold(){return this._backend?this._backend.bufferThreshold/this.targetRate:0},set:function setBufferThreshold(e){if(!this._backend)throw"Invalid state: AudioFeeder cannot set bufferThreshold before init";this._backend.bufferThreshold=Math.round(e*this.targetRate)}}),Object.defineProperty(AudioFeeder.prototype,"playbackPosition",{get:function getPlaybackPosition(){return this._backend?this.getPlaybackState().playbackPosition:0}}),Object.defineProperty(AudioFeeder.prototype,"outputPlaybackPosition",{get:function getOutputPlaybackPosition(){return this._backend?this.getPlaybackState().outputPlaybackPosition:0}}),Object.defineProperty(AudioFeeder.prototype,"durationBuffered",{get:function getDurationBuffered(){return this._backend?this.getPlaybackState().samplesQueued/this.targetRate:0}}),Object.defineProperty(AudioFeeder.prototype,"muted",{get:function getMuted(){if(this._backend)return this._backend.muted;throw"Invalid state: cannot get mute before init"},set:function setMuted(e){if(!this._backend)throw"Invalid state: cannot set mute before init";this._backend.muted=e}}),AudioFeeder.prototype.mute=function(){this.muted=!0},AudioFeeder.prototype.unmute=function(){this.muted=!1},Object.defineProperty(AudioFeeder.prototype,"volume",{get:function getVolume(){if(this._backend)return this._backend.volume;throw"Invalid state: cannot get volume before init"},set:function setVolume(e){if(!this._backend)throw"Invalid state: cannot set volume before init";this._backend.volume=e}}),Object.defineProperty(AudioFeeder.prototype,"tempo",{get:function getTempo(){if(this._tempoChanger)return this._tempoChanger.getTempo();throw"Invalid state: cannot get tempo before init"},set:function setTempo(e){if(!this._tempoChanger)throw"Invalid state: cannot set tempo before init";this._tempoChanger.setTempo(e)}}),AudioFeeder.prototype.init=function(e,i){if(this.channels=e,this.rate=i,t.isSupported())this._backend=new t(e,i,this._options);else{if(!r.isSupported())throw"No supported backend";this._backend=new r(e,i,this._options)}this.targetRate=this._backend.rate,this.bufferSize=this._backend.bufferSize,this._tempoChanger=n({sampleRate:this.targetRate,numChannels:e,tempo:1}),this._backend.onstarved=function(){this.onstarved&&this.onstarved()}.bind(this),this._backend.onbufferlow=function(){this.onbufferlow&&this.onbufferlow()}.bind(this)},AudioFeeder.prototype._resample=function(e){var t=this.rate,i=this.channels,r=this._backend.rate,n=this._backend.channels;if(t==r&&i==n)return e;var o,a=[],s=e[0].length,u=this._resampleFractional,d=s*r/t+u,c=Math.floor(d),f=d-c;o=t<r?function(e,i,n,o){for(var a=function(t){return t<0?n&&n.length+t>0?n[n.length+t]:e[0]:e[t]},s=0;s<i.length;s++){var d,c=(s+1-u)*t/r-1,f=Math.floor(c),l=Math.ceil(c);d=f==l?a(f):a(f)*(l-c)+a(l)*(c-f),i[s]=o*d}}:function(e,t,i,r){for(var n=0;n<t.length;n++)t[n]=r*e[n*e.length/t.length|0]};var l=1;n>i&&(l=Math.SQRT1_2);for(var h=0;h<n;h++){var p=h;h>=i&&(p=0);var _=e[p],m=new Float32Array(c);o(_,m,this._resampleLastSampleData?this._resampleLastSampleData[p]:void 0,l),a.push(m)}return this._resampleFractional=f,this._resampleLastSampleData=e,a},AudioFeeder.prototype.bufferData=function(e){if(!this._backend)throw"Invalid state: AudioFeeder cannot bufferData before init";var t=this._resample(e);t=this._tempoChanger.process(t),this._backend.appendBuffer(t)},AudioFeeder.prototype.getPlaybackState=function(){if(this._backend){var e=this._backend.getPlaybackState();return e.outputPlaybackPosition=e.playbackPosition,e.playbackPosition=this._tempoChanger.mapOutputToInputTime(e.outputPlaybackPosition),e}throw"Invalid state: AudioFeeder cannot getPlaybackState before init"},AudioFeeder.prototype.waitUntilReady=function(e){if(!this._backend)throw"Invalid state: AudioFeeder cannot waitUntilReady before init";this._backend.waitUntilReady(e)},AudioFeeder.prototype.start=function(){if(!this._backend)throw"Invalid state: AudioFeeder cannot start before init";this._backend.start()},AudioFeeder.prototype.stop=function(){if(!this._backend)throw"Invalid state: AudioFeeder cannot stop before init";this._backend.stop()},AudioFeeder.prototype.flush=function(){if(this._resampleFractional=0,this._resampleLastSampleData=void 0,!this._backend)throw"Invalid state: AudioFeeder cannot flush before init";this._tempoChanger.flush(this.durationBuffered),this._backend.flush()},AudioFeeder.prototype.close=function(){this._backend&&(this._backend.close(),this._backend=null)},AudioFeeder.prototype.onstarved=null,AudioFeeder.prototype.onbufferlow=null,AudioFeeder.isSupported=function(){return!!Float32Array&&(t.isSupported()||r.isSupported())},AudioFeeder.initSharedAudioContext=function(){return t.isSupported()?t.initSharedAudioContext():null},e.exports=AudioFeeder}()},function(e,t){
/**
	 * @file Abstraction around a queue of audio buffers.
	 *
	 * @author Brion Vibber <brion@pobox.com>
	 * @copyright (c) 2013-2016 Brion Vibber
	 * @license MIT
	 */
function BufferQueue(e,t){if(e<1||e!==Math.round(e))throw"Invalid channel count for BufferQueue";this.channels=e,this.bufferSize=t,this.flush()}BufferQueue.prototype.flush=function(){this._buffers=[],this._pendingBuffer=this.createBuffer(this.bufferSize),this._pendingPos=0},BufferQueue.prototype.sampleCount=function(){var e=0;return this._buffers.forEach(function(t){e+=t[0].length}),e},BufferQueue.prototype.createBuffer=function(e){for(var t=[],i=0;i<this.channels;i++)t[i]=new Float32Array(e);return t},BufferQueue.prototype.validate=function(e){if(e.length!==this.channels)return!1;for(var t,i=0;i<e.length;i++){var r=e[i];if(!(r instanceof Float32Array))return!1;if(0==i)t=r.length;else if(r.length!==t)return!1}return!0},BufferQueue.prototype.appendBuffer=function(e){if(!this.validate(e))throw"Invalid audio buffer passed to BufferQueue.appendBuffer";for(var t=e[0].length,i=this.channels,r=this._pendingPos,n=this._pendingBuffer,o=this.bufferSize,a=0;a<t;a++){for(var s=0;s<i;s++)n[s][r]=e[s][a];++r==o&&(this._buffers.push(n),r=this._pendingPos=0,n=this._pendingBuffer=this.createBuffer(o))}this._pendingPos=r},BufferQueue.prototype.prependBuffer=function(e){if(!this.validate(e))throw"Invalid audio buffer passed to BufferQueue.prependBuffer";var t=this._buffers.slice(0);t.push(this.trimBuffer(this._pendingBuffer,0,this._pendingPos)),this.flush(),this.appendBuffer(e);for(var i=0;i<t.length;i++)this.appendBuffer(t[i])},BufferQueue.prototype.nextBuffer=function(){if(this._buffers.length)return this._buffers.shift();var e=this.trimBuffer(this._pendingBuffer,0,this._pendingPos);return this._pendingBuffer=this.createBuffer(this.bufferSize),this._pendingPos=0,e},BufferQueue.prototype.trimBuffer=function(e,t,i){var r=e[0].length,n=t+Math.min(i,r);if(0==t&&n>=r)return e;for(var o=[],a=0;a<this.channels;a++)o[a]=e[a].subarray(t,n);return o},e.exports=BufferQueue},function(e,t,i){
/**
	 * @file Web Audio API backend for AudioFeeder
	 * @author Brion Vibber <brion@pobox.com>
	 * @copyright (c) 2013-2016 Brion Vibber
	 * @license MIT
	 */
!function(){var t=window.AudioContext||window.webkitAudioContext,r=i(1),n=i(3);function WebAudioBackend(e,t,i){var n=i.audioContext||WebAudioBackend.initSharedAudioContext();if(this._context=n,this.output=i.output||n.destination,this.rate=n.sampleRate,this.channels=2,i.bufferSize&&(this.bufferSize=0|i.bufferSize),this.bufferThreshold=2*this.bufferSize,this._bufferQueue=new r(this.channels,this.bufferSize),this._playbackTimeAtBufferTail=n.currentTime,this._queuedTime=0,this._delayedTime=0,this._dropped=0,this._liveBuffer=this._bufferQueue.createBuffer(this.bufferSize),n.createScriptProcessor)this._node=n.createScriptProcessor(this.bufferSize,0,this.channels);else{if(!n.createJavaScriptNode)throw new Error("Bad version of web audio API?");this._node=n.createJavaScriptNode(this.bufferSize,0,this.channels)}}WebAudioBackend.prototype.bufferSize=4096,WebAudioBackend.prototype.bufferThreshold=8192,WebAudioBackend.prototype._volume=1,Object.defineProperty(WebAudioBackend.prototype,"volume",{get:function getVolume(){return this._volume},set:function setVolume(e){this._volume=+e}}),WebAudioBackend.prototype._muted=!1,Object.defineProperty(WebAudioBackend.prototype,"muted",{get:function getMuted(){return this._muted},set:function setMuted(e){this._muted=!!e}}),WebAudioBackend.prototype._audioProcess=function(e){var t,i,r,o,a;a="number"==typeof e.playbackTime?e.playbackTime:this._context.currentTime+this.bufferSize/this.rate;var 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Bisector(e){(0,n.default)(this,Bisector),this.lower=e.start,this.upper=e.end,this.onprocess=e.process,this.position=0,this.n=0}return(0,o.default)(Bisector,[{key:"iterate",value:function iterate(){return this.n++,this.position=Math.floor((this.lower+this.upper)/2),this.onprocess(this.lower,this.upper,this.position)}},{key:"start",value:function start(){return this.iterate(),this}},{key:"left",value:function left(){return this.upper=this.position,this.iterate()}},{key:"right",value:function right(){return this.lower=this.position,this.iterate()}}]),Bisector}();t.default=a},function(e,t,i){"use strict";var r=i(0);Object.defineProperty(t,"__esModule",{value:!0}),t.default=void 0;var n=r(i(1)),o=r(i(2)),a=r(i(8)),s=function(){function OGVWrapperCodec(e){return(0,n.default)(this,OGVWrapperCodec),this.options=e||{},this.demuxer=null,this.videoDecoder=null,this.audioDecoder=null,this.flushIter=0,this.loadedMetadata=!1,this.processing=!1,Object.defineProperties(this,{duration:{get:function get(){return this.loadedMetadata?this.demuxer.duration:NaN}},hasAudio:{get:function get(){return this.loadedMetadata&&!!this.audioDecoder}},audioReady:{get:function get(){return this.hasAudio&&this.demuxer.audioReady}},audioTimestamp:{get:function get(){return this.demuxer.audioTimestamp}},audioFormat:{get:function get(){return this.hasAudio?this.audioDecoder.audioFormat:null}},audioBuffer:{get:function get(){return this.hasAudio?this.audioDecoder.audioBuffer:null}},hasVideo:{get:function get(){return this.loadedMetadata&&!!this.videoDecoder}},frameReady:{get:function get(){return this.hasVideo&&this.demuxer.frameReady}},frameTimestamp:{get:function get(){return this.demuxer.frameTimestamp}},keyframeTimestamp:{get:function get(){return this.demuxer.keyframeTimestamp}},nextKeyframeTimestamp:{get:function get(){return this.demuxer.nextKeyframeTimestamp}},videoFormat:{get:function get(){return this.hasVideo?this.videoDecoder.videoFormat:null}},frameBuffer:{get:function get(){return this.hasVideo?this.videoDecoder.frameBuffer:null}},seekable:{get:function get(){return this.demuxer.seekable}},demuxerCpuTime:{get:function get(){return this.demuxer?this.demuxer.cpuTime:0}},audioCpuTime:{get:function get(){return this.audioDecoder?this.audioDecoder.cpuTime:0}},videoCpuTime:{get:function get(){return this.videoDecoder?this.videoDecoder.cpuTime:0}}}),this.loadedDemuxerMetadata=!1,this.loadedAudioMetadata=!1,this.loadedVideoMetadata=!1,this.loadedAllMetadata=!1,this.onseek=null,this.videoBytes=0,this.audioBytes=0,this}return(0,o.default)(OGVWrapperCodec,[{key:"flushSafe",value:function flushSafe(e){var t=this,i=this.flushIter;return function(r){t.flushIter<=i&&e(r)}}},{key:"init",value:function init(e){var t,i=this;this.processing=!0,t="video/webm"===this.options.type||"audio/webm"===this.options.type?this.options.wasm?"OGVDemuxerWebMW":"OGVDemuxerWebM":this.options.wasm?"OGVDemuxerOggW":"OGVDemuxerOgg",a.default.loadClass(t,function(t){t().then(function(t){i.demuxer=t,t.onseek=function(e){i.onseek&&i.onseek(e)},t.init(function(){i.processing=!1,e()})})})}},{key:"close",value:function close(){this.demuxer&&(this.demuxer.close(),this.demuxer=null),this.videoDecoder&&(this.videoDecoder.close(),this.videoDecoder=null),this.audioDecoder&&(this.audioDecoder.close(),this.audioDecoder=null)}},{key:"receiveInput",value:function receiveInput(e,t){this.demuxer.receiveInput(e,t)}},{key:"process",value:function process(e){var t=this;if(this.processing)throw new Error("reentrancy fail on OGVWrapperCodec.process");this.processing=!0;var i=function finish(i){t.processing=!1,e(i)},r=function doProcessData(){t.demuxer.process(i)};this.demuxer.loadedMetadata&&!this.loadedDemuxerMetadata?this.loadAudioCodec(function(){t.loadVideoCodec(function(){t.loadedDemuxerMetadata=!0,t.loadedAudioMetadata=!t.audioDecoder,t.loadedVideoMetadata=!t.videoDecoder,t.loadedAllMetadata=t.loadedAudioMetadata&&t.loadedVideoMetadata,i(!0)})}):this.loadedDemuxerMetadata&&!this.loadedAudioMetadata?this.audioDecoder.loadedMetadata?(this.loadedAudioMetadata=!0,this.loadedAllMetadata=this.loadedAudioMetadata&&this.loadedVideoMetadata,i(!0)):this.demuxer.audioReady?this.demuxer.dequeueAudioPacket(function(e,r){t.audioBytes+=e.byteLength,t.audioDecoder.processHeader(e,function(e){i(!0)})}):r():this.loadedAudioMetadata&&!this.loadedVideoMetadata?this.videoDecoder.loadedMetadata?(this.loadedVideoMetadata=!0,this.loadedAllMetadata=this.loadedAudioMetadata&&this.loadedVideoMetadata,i(!0)):this.demuxer.frameReady?(this.processing=!0,this.demuxer.dequeueVideoPacket(function(e){t.videoBytes+=e.byteLength,t.videoDecoder.processHeader(e,function(){i(!0)})})):r():this.loadedVideoMetadata&&!this.loadedMetadata&&this.loadedAllMetadata?(this.loadedMetadata=!0,i(!0)):!this.loadedMetadata||this.hasAudio&&!this.demuxer.audioReady||this.hasVideo&&!this.demuxer.frameReady?r():i(!0)}},{key:"decodeFrame",value:function decodeFrame(e){var t=this,i=this.flushSafe(e),r=this.frameTimestamp,n=this.keyframeTimestamp;this.demuxer.dequeueVideoPacket(function(e){t.videoBytes+=e.byteLength,t.videoDecoder.processFrame(e,function(e){var o=t.videoDecoder.frameBuffer;o&&(o.timestamp=r,o.keyframeTimestamp=n),i(e)})})}},{key:"decodeAudio",value:function decodeAudio(e){var t=this,i=this.flushSafe(e);this.demuxer.dequeueAudioPacket(function(e,r){t.audioBytes+=e.byteLength,t.audioDecoder.processAudio(e,function(e){if(r){var n=t.audioDecoder.audioBuffer,o=[],a=!0,s=!1,u=void 0;try{for(var d,c=n[Symbol.iterator]();!(a=(d=c.next()).done);a=!0){var f=d.value,l=Math.round(r*t.audioFormat.rate/1e9);l>0?o.push(f.subarray(0,f.length-Math.min(l,f.length))):o.push(f.subarray(Math.min(Math.abs(l),f.length),f.length))}}catch(e){s=!0,u=e}finally{try{a||null==c.return||c.return()}finally{if(s)throw u}}t.audioDecoder.audioBuffer=o}return i(e)})})}},{key:"discardFrame",value:function discardFrame(e){var t=this;this.demuxer.dequeueVideoPacket(function(i){t.videoBytes+=i.byteLength,e()})}},{key:"discardAudio",value:function discardAudio(e){var t=this;this.demuxer.dequeueAudioPacket(function(i,r){t.audioBytes+=i.byteLength,e()})}},{key:"flush",value:function flush(e){this.flushIter++,this.demuxer.flush(e)}},{key:"sync",value:function sync(){this.videoDecoder&&this.videoDecoder.sync()}},{key:"getKeypointOffset",value:function getKeypointOffset(e,t){this.demuxer.getKeypointOffset(e,t)}},{key:"seekToKeypoint",value:function seekToKeypoint(e,t){this.demuxer.seekToKeypoint(e,this.flushSafe(t))}},{key:"loadAudioCodec",value:function loadAudioCodec(e){var t=this;if(this.demuxer.audioCodec){var i=!!this.options.wasm,r={vorbis:i?"OGVDecoderAudioVorbisW":"OGVDecoderAudioVorbis",opus:i?"OGVDecoderAudioOpusW":"OGVDecoderAudioOpus"}[this.demuxer.audioCodec];this.processing=!0,a.default.loadClass(r,function(i){var r={};t.demuxer.audioFormat&&(r.audioFormat=t.demuxer.audioFormat),i(r).then(function(i){t.audioDecoder=i,i.init(function(){t.loadedAudioMetadata=i.loadedMetadata,t.processing=!1,e()})})},{worker:this.options.worker})}else e()}},{key:"loadVideoCodec",value:function loadVideoCodec(e){var t=this;if(this.demuxer.videoCodec){var i=!!this.options.wasm,r=!!this.options.threading,n={theora:i?"OGVDecoderVideoTheoraW":"OGVDecoderVideoTheora",vp8:i?r?"OGVDecoderVideoVP8MTW":"OGVDecoderVideoVP8W":"OGVDecoderVideoVP8",vp9:i?r?"OGVDecoderVideoVP9MTW":"OGVDecoderVideoVP9W":"OGVDecoderVideoVP9",av1:i?r?"OGVDecoderVideoAV1MTW":"OGVDecoderVideoAV1W":"OGVDecoderVideoAV1"}[this.demuxer.videoCodec];this.processing=!0,a.default.loadClass(n,function(i){var n={};t.demuxer.videoFormat&&(n.videoFormat=t.demuxer.videoFormat),t.options.memoryLimit&&(n.memoryLimit=t.options.memoryLimit),r&&delete window.ENVIRONMENT_IS_PTHREAD,i(n).then(function(i){t.videoDecoder=i,i.init(function(){t.loadedVideoMetadata=i.loadedMetadata,t.processing=!1,e()})})},{worker:this.options.worker&&!this.options.threading})}else e()}}]),OGVWrapperCodec}();t.default=s}])});