dashjs/dist/modern/esm/dash.mss.min.js

A reference client implementation for the playback of MPEG DASH via Javascript and compliant browsers.

var t={d:function(e,r){for(var n in r)t.o(r,n)&&!t.o(e,n)&&Object.defineProperty(e,n,{enumerable:!0,get:r[n]})},o:function(t,e){return Object.prototype.hasOwnProperty.call(t,e)},r:function(t){"undefined"!=typeof Symbol&&Symbol.toStringTag&&Object.defineProperty(t,Symbol.toStringTag,{value:"Module"}),Object.defineProperty(t,"__esModule",{value:!0})}},e={};t.r(e),t.d(e,{MssHandler:function(){return O},default:function(){return x}});var r=class{constructor(){this.streamId=null,this.segmentType=null,this.index=NaN,this.bytes=null,this.start=NaN,this.end=NaN,this.duration=NaN,this.representation=null,this.endFragment=null}};class n{constructor(){this.tcpid=null,this.type=null,this.url=null,this.actualurl=null,this.range=null,this.trequest=null,this.tresponse=null,this.responsecode=null,this.interval=null,this.trace=[],this.cmsd=null,this._stream=null,this._tfinish=null,this._mediaduration=null,this._responseHeaders=null,this._serviceLocation=null,this._fileLoaderType=null,this._resourceTimingValues=null}}n.GET="GET",n.HEAD="HEAD",n.MPD_TYPE="MPD",n.XLINK_EXPANSION_TYPE="XLinkExpansion",n.INIT_SEGMENT_TYPE="InitializationSegment",n.INDEX_SEGMENT_TYPE="IndexSegment",n.MEDIA_SEGMENT_TYPE="MediaSegment",n.BITSTREAM_SWITCHING_SEGMENT_TYPE="BitstreamSwitchingSegment",n.MSS_FRAGMENT_INFO_SEGMENT_TYPE="FragmentInfoSegment",n.DVB_REPORTING_TYPE="DVBReporting",n.LICENSE="license",n.CONTENT_STEERING_TYPE="ContentSteering",n.OTHER_TYPE="other";class 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t=c.getRepresentationController().getCurrentRepresentation(),e=t.adaptation.period.mpd.manifest.Period[t.adaptation.period.index].AdaptationSet[t.adaptation.index],r=e.SegmentTemplate.SegmentTimeline.S,i=function(t,e,r){let i=t.SegmentTemplate.timescale,a=new o;return a.mediaType=s,a.type=n.MSS_FRAGMENT_INFO_SEGMENT_TYPE,a.startTime=r.t/i,a.duration=r.d/i,a.timescale=i,a.bandwidth=e.bandwidth,a.index=f++,a.adaptationIndex=e.adaptation.index,a.representation=e,a.url=d.resolve(e.path).url+t.SegmentTemplate.media,a.url=a.url.replace("$Bandwidth$",e.bandwidth),a.url=a.url.replace("$Time$",r.tManifest?r.tManifest:r.t),a.url=a.url.replace("/Fragments(","/FragmentInfo("),a}(e,t,r[r.length-1]);y.call(this,i)}function y(t){if(c.getFragmentModel().isFragmentLoadedOrPending(t))return r.debug("End of timeline"),void m();i.executeRequest(t)}return e={initialize:function(){s=c.getType(),i=c.getFragmentModel(),a=!1,l=null,p=null},controllerType:"MssFragmentInfoController",start:function(){a||(r.debug("Start"),a=!0,f=0,g())},fragmentInfoLoaded:function(t){if(!a)return;const e=t.request;if(!t.response)return void r.error("Load error",e.url);let n,i,o;null===l&&(l=(new Date).getTime()),p||(p=e.startTime),i=((new Date).getTime()-l)/1e3,n=e.startTime+e.duration-p,o=Math.max(0,n-i),clearTimeout(u),u=setTimeout((function(){u=null,g()}),1e3*o)},getType:function(){return s},reset:function(){m()}},r=h.getLogger(e),e}u.__dashjs_factory_name="MssFragmentInfoController";var l=s.getClassFactory(u),p=class{constructor(t,e,r){this.code=t||null,this.message=e||null,this.data=r||null}},f=class{extend(t,e){if(!t)return;let r=!!e&&e.override,n=!!e&&e.publicOnly;for(const e in t)!t.hasOwnProperty(e)||this[e]&&!r||n&&-1===t[e].indexOf("public_")||(this[e]=t[e])}},c=new class extends f{constructor(){super(),this.MSS_NO_TFRF_CODE=200,this.MSS_UNSUPPORTED_CODEC_CODE=201,this.MSS_NO_TFRF_MESSAGE="Missing tfrf in live media segment",this.MSS_UNSUPPORTED_CODEC_MESSAGE="Unsupported codec"}},d=class{extend(t,e){if(!t)return;let r=!!e&&e.override,n=!!e&&e.publicOnly;for(const e in t)!t.hasOwnProperty(e)||this[e]&&!r||n&&-1===t[e].indexOf("public_")||(this[e]=t[e])}},h=new class extends d{constructor(){super(),this.AST_IN_FUTURE="astInFuture",this.BASE_URLS_UPDATED="baseUrlsUpdated",this.BUFFER_EMPTY="bufferStalled",this.BUFFER_LOADED="bufferLoaded",this.BUFFER_LEVEL_STATE_CHANGED="bufferStateChanged",this.BUFFER_LEVEL_UPDATED="bufferLevelUpdated",this.DVB_FONT_DOWNLOAD_ADDED="dvbFontDownloadAdded",this.DVB_FONT_DOWNLOAD_COMPLETE="dvbFontDownloadComplete",this.DVB_FONT_DOWNLOAD_FAILED="dvbFontDownloadFailed",this.DYNAMIC_TO_STATIC="dynamicToStatic",this.ERROR="error",this.FRAGMENT_LOADING_COMPLETED="fragmentLoadingCompleted",this.FRAGMENT_LOADING_PROGRESS="fragmentLoadingProgress",this.FRAGMENT_LOADING_STARTED="fragmentLoadingStarted",this.FRAGMENT_LOADING_ABANDONED="fragmentLoadingAbandoned",this.LOG="log",this.MANIFEST_LOADING_STARTED="manifestLoadingStarted",this.MANIFEST_LOADING_FINISHED="manifestLoadingFinished",this.MANIFEST_LOADED="manifestLoaded",this.METRICS_CHANGED="metricsChanged",this.METRIC_CHANGED="metricChanged",this.METRIC_ADDED="metricAdded",this.METRIC_UPDATED="metricUpdated",this.PERIOD_SWITCH_STARTED="periodSwitchStarted",this.PERIOD_SWITCH_COMPLETED="periodSwitchCompleted",this.QUALITY_CHANGE_REQUESTED="qualityChangeRequested",this.QUALITY_CHANGE_RENDERED="qualityChangeRendered",this.NEW_TRACK_SELECTED="newTrackSelected",this.TRACK_CHANGE_RENDERED="trackChangeRendered",this.STREAM_INITIALIZING="streamInitializing",this.STREAM_UPDATED="streamUpdated",this.STREAM_ACTIVATED="streamActivated",this.STREAM_DEACTIVATED="streamDeactivated",this.STREAM_INITIALIZED="streamInitialized",this.STREAM_TEARDOWN_COMPLETE="streamTeardownComplete",this.TEXT_TRACKS_ADDED="allTextTracksAdded",this.TEXT_TRACK_ADDED="textTrackAdded",this.CUE_ENTER="cueEnter",this.CUE_EXIT="cueExit",this.THROUGHPUT_MEASUREMENT_STORED="throughputMeasurementStored",this.TTML_PARSED="ttmlParsed",this.TTML_TO_PARSE="ttmlToParse",this.CAPTION_RENDERED="captionRendered",this.CAPTION_CONTAINER_RESIZE="captionContainerResize",this.CAN_PLAY="canPlay",this.CAN_PLAY_THROUGH="canPlayThrough",this.PLAYBACK_ENDED="playbackEnded",this.PLAYBACK_ERROR="playbackError",this.PLAYBACK_INITIALIZED="playbackInitialized",this.PLAYBACK_NOT_ALLOWED="playbackNotAllowed",this.PLAYBACK_METADATA_LOADED="playbackMetaDataLoaded",this.PLAYBACK_LOADED_DATA="playbackLoadedData",this.PLAYBACK_PAUSED="playbackPaused",this.PLAYBACK_PLAYING="playbackPlaying",this.PLAYBACK_PROGRESS="playbackProgress",this.PLAYBACK_RATE_CHANGED="playbackRateChanged",this.PLAYBACK_SEEKED="playbackSeeked",this.PLAYBACK_SEEKING="playbackSeeking",this.PLAYBACK_STALLED="playbackStalled",this.PLAYBACK_STARTED="playbackStarted",this.PLAYBACK_TIME_UPDATED="playbackTimeUpdated",this.PLAYBACK_VOLUME_CHANGED="playbackVolumeChanged",this.PLAYBACK_WAITING="playbackWaiting",this.MANIFEST_VALIDITY_CHANGED="manifestValidityChanged",this.EVENT_MODE_ON_START="eventModeOnStart",this.EVENT_MODE_ON_RECEIVE="eventModeOnReceive",this.CONFORMANCE_VIOLATION="conformanceViolation",this.REPRESENTATION_SWITCH="representationSwitch",this.ADAPTATION_SET_REMOVED_NO_CAPABILITIES="adaptationSetRemovedNoCapabilities",this.CONTENT_STEERING_REQUEST_COMPLETED="contentSteeringRequestCompleted",this.INBAND_PRFT="inbandPrft",this.MANAGED_MEDIA_SOURCE_START_STREAMING="managedMediaSourceStartStreaming",this.MANAGED_MEDIA_SOURCE_END_STREAMING="managedMediaSourceEndStreaming"}};function m(t){let e,r,n;const i=(t=t||{}).dashMetrics,o=t.playbackController,a=t.errHandler,s=t.eventBus,u=t.ISOBoxer,l=t.debug;function f(t,e,i,u){const l=u.getRepresentationController().getCurrentRepresentation(),f=l.adaptation.period.mpd.manifest,m=f.Period[l.adaptation.period.index].AdaptationSet[l.adaptation.index],g=m.SegmentTemplate.timescale;if(r=u.getType(),"dynamic"!==f.type&&!f.timeShiftBufferDepth)return;if(!e)return void a.error(new p(c.MSS_NO_TFRF_CODE,c.MSS_NO_TFRF_MESSAGE));const y=m.SegmentTemplate.SegmentTimeline.S,_=e.entry;let v,T,E,S,A=null,b=0,D=null;if(0===_.length)return;if(v=_[0],"static"===f.type&&(T=y[0].tManifest?parseFloat(y[0].tManifest):y[0].t,v.fragment_absolute_time>T+f.timeShiftBufferDepth*g))return;if(T=y[y.length-1].tManifest?parseFloat(y[y.length-1].tManifest):y[y.length-1].t,v.fragment_absolute_time<=T)return E={start:y[0].t/g,end:i.baseMediaDecodeTime/g+t.duration},void 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"+e.end+"]"),i.addDVRInfo(t,o.getTime(),r,e),o.updateCurrentTime(t))}function m(t,e){let r=8,n=0;for(n=0;n<t.boxes.length;n++){if(t.boxes[n].type===e)return r;r+=t.boxes[n].size}return r}return e={convertFragment:function(t,e){let r;const n=u.parseBuffer(t.response),i=n.fetch("tfhd");i.track_ID=t.request.representation.mediaInfo.index+1;let o=n.fetch("tfdt");const a=n.fetch("traf");null===o&&(o=u.createFullBox("tfdt",a,i),o.version=1,o.flags=0,o.baseMediaDecodeTime=Math.floor(t.request.startTime*t.request.timescale));const s=n.fetch("trun");let l=n.fetch("tfxd");l&&(l._parent.boxes.splice(l._parent.boxes.indexOf(l),1),l=null);let p=n.fetch("tfrf");f(t.request,p,o,e),p&&(p._parent.boxes.splice(p._parent.boxes.indexOf(p),1),p=null);const c=n.fetch("sepiff");if(null!==c){c.type="senc",c.usertype=void 0;let t=n.fetch("saio");if(null===t){t=u.createFullBox("saio",a),t.version=0,t.flags=0,t.entry_count=1,t.offset=[0];const e=u.createFullBox("saiz",a);if(e.version=0,e.flags=0,e.sample_count=c.sample_count,e.default_sample_info_size=0,e.sample_info_size=[],2&c.flags)for(r=0;r<c.sample_count;r+=1)e.sample_info_size[r]=10+6*c.entry[r].NumberOfEntries;else e.default_sample_info_size=8}}i.flags&=16777214,i.flags|=131072,s.flags|=1;const d=n.fetch("moof");let h=d.getLength();s.data_offset=h+8;let g=n.fetch("saio");if(null!==g){let t=m(d,"traf"),e=m(a,"senc");g.offset[0]=t+e+16}t.response=n.write()},updateSegmentList:function(t,e){if(!t.response)throw new Error("e.response parameter is missing");const r=u.parseBuffer(t.response),n=r.fetch("tfhd");n.track_ID=t.request.representation.mediaInfo.index+1;let i=r.fetch("tfdt"),o=r.fetch("traf");null===i&&(i=u.createFullBox("tfdt",o,n),i.version=1,i.flags=0,i.baseMediaDecodeTime=Math.floor(t.request.startTime*t.request.timescale));let a=r.fetch("tfrf");f(t.request,a,i,e),a&&(a._parent.boxes.splice(a._parent.boxes.indexOf(a),1),a=null)},getType:function(){return r}},n=l.getLogger(e),r="",e}m.__dashjs_factory_name="MssFragmentMoofProcessor";var g=s.getClassFactory(m);function y(t){const e=(t=t||{}).constants,r=t.ISOBoxer;let n,i,o,a,s,u,l,p=t.protectionController;function f(t,e){r.createBox("frma",t).data_format=function(t){let e,r=0;for(e=0;e<t.length;e+=1)r|=t.charCodeAt(e)<<8*(t.length-e-1);return r}(e)}function d(t){let e=r.createFullBox("schm",t);e.flags=0,e.version=0,e.scheme_type=1667591779,e.scheme_version=65536}function h(t){!function(t){let e=r.createFullBox("tenc",t);e.flags=0,e.version=0,e.default_IsEncrypted=1,e.default_IV_size=8,e.default_KID=s&&s.length>0&&s[0]["cenc:default_KID"]?s[0]["cenc:default_KID"]:[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]}(r.createBox("schi",t))}function m(t){let e,r=new Uint8Array(t.length/2);for(e=0;e<t.length/2;e+=1)r[e]=parseInt(""+t[2*e]+t[2*e+1],16);return r}return n={generateMoov:function(t){if(!t||!t.adaptation)return;let n,g;return a=t,o=a.adaptation,i=o.period,l=o.index+1,s=i.mpd.manifest.Period[i.index].AdaptationSet[o.index].ContentProtection,u=i.mpd.manifest.Period[i.index].AdaptationSet[o.index].SegmentTemplate.timescale,n=r.createFile(),function(t){let e=r.createBox("ftyp",t);e.major_brand="iso6",e.minor_version=1,e.compatible_brands=[],e.compatible_brands[0]="isom",e.compatible_brands[1]="iso6",e.compatible_brands[2]="msdh"}(n),function(t){let n=r.createBox("moov",t);!function(t){let e=r.createFullBox("mvhd",t);e.version=1,e.creation_time=0,e.modification_time=0,e.timescale=u,e.duration=i.duration===1/0?0x10000000000000000:Math.round(i.duration*u),e.rate=1,e.volume=1,e.reserved1=0,e.reserved2=[0,0],e.matrix=[1,0,0,0,1,0,0,0,16384],e.pre_defined=[0,0,0,0,0,0],e.next_track_ID=l+1}(n);let g=r.createBox("trak",n);!function(t){let e=r.createFullBox("tkhd",t);e.version=1,e.flags=7,e.creation_time=0,e.modification_time=0,e.track_ID=l,e.reserved1=0,e.duration=i.duration===1/0?0x10000000000000000:Math.round(i.duration*u),e.reserved2=[0,0],e.layer=0,e.alternate_group=0,e.volume=1,e.reserved3=0,e.matrix=[1,0,0,0,1,0,0,0,16384],e.width=a.width,e.height=a.height}(g);let y=r.createBox("mdia",g);!function(t){let e=r.createFullBox("mdhd",t);e.version=1,e.creation_time=0,e.modification_time=0,e.timescale=u,e.duration=i.duration===1/0?0x10000000000000000:Math.round(i.duration*u),e.language=o.lang||"und",e.pre_defined=0}(y),function(t){let n=r.createFullBox("hdlr",t);switch(n.pre_defined=0,o.type){case e.VIDEO:n.handler_type="vide";break;case e.AUDIO:n.handler_type="soun";break;default:n.handler_type="meta"}n.name=a.id,n.reserved=[0,0,0]}(y);let _=r.createBox("minf",y);switch(o.type){case e.VIDEO:!function(t){let e=r.createFullBox("vmhd",t);e.flags=1,e.graphicsmode=0,e.opcolor=[0,0,0]}(_);break;case e.AUDIO:!function(t){let e=r.createFullBox("smhd",t);e.flags=1,e.balance=0,e.reserved=0}(_)}!function(t){let e=r.createFullBox("dref",t);e.entry_count=1,e.entries=[];let n=r.createFullBox("url ",e,!1);n.location="",n.flags=1,e.entries.push(n)}(r.createBox("dinf",_));let v=r.createBox("stbl",_);r.createFullBox("stts",v)._data=[0,0,0,0,0,0,0,0],r.createFullBox("stsc",v)._data=[0,0,0,0,0,0,0,0],r.createFullBox("stco",v)._data=[0,0,0,0,0,0,0,0],r.createFullBox("stsz",v)._data=[0,0,0,0,0,0,0,0,0,0,0,0],function(t){let n=r.createFullBox("stsd",t);switch(n.entries=[],o.type){case e.VIDEO:case e.AUDIO:n.entries.push(function(t){let e=a.codecs.substring(0,a.codecs.indexOf("."));switch(e){case"avc1":return function(t,e){let 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