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Int8Array(this._buffer,this.byteOffset+this.position,t);return this.position+=+t,e},r.prototype.mapUint32Array=function(t,e){this._realloc(4*t);var i=new Uint32Array(this._buffer,this.byteOffset+this.position,t);return r.arrayToNative(i,null==e?this.endianness:e),this.position+=4*t,i},r.prototype.mapUint16Array=function(t,e){this._realloc(2*t);var i=new Uint16Array(this._buffer,this.byteOffset+this.position,t);return r.arrayToNative(i,null==e?this.endianness:e),this.position+=2*t,i},r.prototype.mapFloat64Array=function(t,e){this._realloc(8*t);var i=new Float64Array(this._buffer,this.byteOffset+this.position,t);return r.arrayToNative(i,null==e?this.endianness:e),this.position+=8*t,i},r.prototype.mapFloat32Array=function(t,e){this._realloc(4*t);var i=new Float32Array(this._buffer,this.byteOffset+this.position,t);return r.arrayToNative(i,null==e?this.endianness:e),this.position+=4*t,i};var n=function(t){this.buffers=[],this.bufferIndex=-1,t&&(this.insertBuffer(t),this.bufferIndex=0)};n.prototype=new r(new ArrayBuffer,0,r.BIG_ENDIAN),n.prototype.initialized=function(){var t;return!!(this.bufferIndex>-1)||(this.buffers.length>0?0===(t=this.buffers[0]).fileStart?(this.buffer=t,this.bufferIndex=0,i.debug("MultiBufferStream","Stream ready for parsing"),!0):(i.warn("MultiBufferStream","The first buffer should have a fileStart of 0"),this.logBufferLevel(),!1):(i.warn("MultiBufferStream","No buffer to start parsing from"),this.logBufferLevel(),!1))},ArrayBuffer.concat=function(t,e){i.debug("ArrayBuffer","Trying to create a new buffer of size: "+(t.byteLength+e.byteLength));var s=new Uint8Array(t.byteLength+e.byteLength);return s.set(new Uint8Array(t),0),s.set(new Uint8Array(e),t.byteLength),s.buffer}
1,n.prototype.reduceBuffer=function(t,e,i){var s;return(s=new Uint8Array(i)).set(new Uint8Array(t,e,i)),s.buffer.fileStart=t.fileStart+e,s.buffer.usedBytes=0,s.buffer},n.prototype.insertBuffer=function(t){for(var e=!0,s=0;s<this.buffers.length;s++){var r=this.buffers[s];if(t.fileStart<=r.fileStart){if(t.fileStart===r.fileStart)if(t.byteLength>r.byteLength){this.buffers.splice(s,1),s--;continue}else i.warn("MultiBufferStream","Buffer (fileStart: "+t.fileStart+" - Length: "+t.byteLength+") already appended, ignoring");else t.fileStart+t.byteLength<=r.fileStart||(t=this.reduceBuffer(t,0,r.fileStart-t.fileStart)),i.debug("MultiBufferStream","Appending new buffer (fileStart: "+t.fileStart+" - Length: "+t.byteLength+")"),this.buffers.splice(s,0,t),0===s&&(this.buffer=t);e=!1;break}if(t.fileStart<r.fileStart+r.byteLength){var n=r.fileStart+r.byteLength-t.fileStart,a=t.byteLength-n;if(a>0)t=this.reduceBuffer(t,n,a);else{e=!1;break}}}e&&(i.debug("MultiBufferStream","Appending new buffer (fileStart: "+t.fileStart+" - Length: "+t.byteLength+")"),this.buffers.push(t),0===s&&(this.buffer=t))},n.prototype.logBufferLevel=function(t){var e,s,r,n,a,o=[],h="";for(e=0,r=0,n=0;e<this.buffers.length;e++)s=this.buffers[e],0===e?(o.push(a={}),a.start=s.fileStart,a.end=s.fileStart+s.byteLength,h+="["+a.start+"-"):a.end===s.fileStart?a.end=s.fileStart+s.byteLength:((a={}).start=s.fileStart,h+=o[o.length-1].end-1+"], ["+a.start+"-",a.end=s.fileStart+s.byteLength,o.push(a)),r+=s.usedBytes,n+=s.byteLength;o.length>0&&(h+=a.end-1+"]"),(t?i.info:i.debug)("MultiBufferStream",0===this.buffers.length?"No more buffer in memory":""+this.buffers.length+" stored buffer(s) ("+r+"/"+n+" bytes), continuous ranges: "+h)},n.prototype.cleanBuffers=function(){var t,e;for(t=0;t<this.buffers.length;t++)(e=this.buffers[t]).usedBytes===e.byteLength&&(i.debug("MultiBufferStream","Removing buffer #"+t),this.buffers.splice(t,1),t--)},n.prototype.mergeNextBuffer=function(){if(!(this.bufferIndex+1<this.buffers.length)||(t=this.buffers[this.bufferIndex+1]).fileStart!==this.buffer.fileStart+this.buffer.byteLength)return!1;var t,e=this.buffer.byteLength,s=this.buffer.usedBytes,r=this.buffer.fileStart;return this.buffers[this.bufferIndex]=ArrayBuffer.concat(this.buffer,t),this.buffer=this.buffers[this.bufferIndex],this.buffers.splice(this.bufferIndex+1,1),this.buffer.usedBytes=s,this.buffer.fileStart=r,i.debug("ISOFile","Concatenating buffer for box parsing (length: "+e+"->"+this.buffer.byteLength+")"),!0},n.prototype.findPosition=function(t,e,s){var r,n=null,a=-1;for(r=!0===t?0:this.bufferIndex;r<this.buffers.length&&(n=this.buffers[r]).fileStart<=e;)a=r,s&&(n.fileStart+n.byteLength<=e?n.usedBytes=n.byteLength:n.usedBytes=e-n.fileStart,this.logBufferLevel()),r++;return -1===a?-1:(n=this.buffers[a]).fileStart+n.byteLength>=e?(i.debug("MultiBufferStream","Found position in existing buffer #"+a),a):-1},n.prototype.findEndContiguousBuf=function(t){var e,i,s,r=void 0!==t?t:this.bufferIndex;if(i=this.buffers[r],this.buffers.length>r+1)for(e=r+1;e<this.buffers.length;e++)if((s=this.buffers[e]).fileStart===i.fileStart+i.byteLength)i=s;else break;return i.fileStart+i.byteLength},n.prototype.getEndFilePositionAfter=function(t){var e=this.findPosition(!0,t,!1);return -1!==e?this.findEndContiguousBuf(e):t},n.prototype.addUsedBytes=function(t){this.buffer.usedBytes+=t,this.logBufferLevel()},n.prototype.setAllUsedBytes=function(){this.buffer.usedBytes=this.buffer.byteLength,this.logBufferLevel()},n.prototype.seek=function(t,e,s){var r;return -1!==(r=this.findPosition(e,t,s))?(this.buffer=this.buffers[r],this.bufferIndex=r,this.position=t-this.buffer.fileStart,i.debug("MultiBufferStream","Repositioning parser at buffer position: "+this.position),!0):(i.debug("MultiBufferStream","Position "+t+" not found in buffered data"),!1)},n.prototype.getPosition=function(){if(-1===this.bufferIndex||null===this.buffers[this.bufferIndex])throw"Error accessing position in the MultiBufferStream";return this.buffers[this.bufferIndex].fileStart+this.position},n.prototype.getLength=function(){return this.byteLength},n.prototype.getEndPosition=function(){if(-1===this.bufferIndex||null===this.buffers[this.bufferIndex])throw"Error accessing position in the MultiBufferStream";return this.buffers[this.bufferIndex].fileStart+this.byteLength};var a=function(){var t=[];t[3]="ES_Descriptor",t[4]="DecoderConfigDescriptor",t[5]="DecoderSpecificInfo",t[6]="SLConfigDescriptor",this.getDescriptorName=function(e){return t[e]};var e=this,s={};return this.parseOneDescriptor=function(e){var r,n,a,o=0,h=0;for(r=e.readUint8(),o++,a=e.readUint8(),o++;128&a;)h=(127&a)<<7,a=e.readUint8(),o++;return h+=127&a,i.debug("MPEG4DescriptorParser","Found "+(t[r]||"Descriptor "+r)+", size "+h+" at position "+e.getPosition()),(n=t[r]?new s[t[r]](h):new s.Descriptor(h)).parse(e),n},s.Descriptor=function(t,e){this.tag=t,this.size=e,this.descs=[]},s.Descriptor.prototype.parse=function(t){this.data=t.readUint8Array(this.size)},s.Descriptor.prototype.findDescriptor=function(t){for(var e=0;e<this.descs.length;e++)if(this.descs[e].tag==t)return this.descs[e];return null},s.Descriptor.prototype.parseRemainingDescriptors=function(t){for(var i=t.position;t.position<i+this.size;){var s=e.parseOneDescriptor(t);this.descs.push(s)}},s.ES_Descriptor=function(t){s.Descriptor.call(this,3,t)},s.ES_Descriptor.prototype=new s.Descriptor,s.ES_Descriptor.prototype.parse=function(t){if(this.ES_ID=t.readUint16(),this.flags=t.readUint8(),this.size-=3,128&this.flags?(this.dependsOn_ES_ID=t.readUint16(),this.size-=2):this.dependsOn_ES_ID=0,64&this.flags){var e=t.readUint8();this.URL=t.readString(e),this.size-=e+1}else this.URL="";32&this.flags?(this.OCR_ES_ID=t.readUint16(),this.size-=2):this.OCR_ES_ID=0,this.parseRemainingDescriptors(t)},s.ES_Descriptor.prototype.getOTI=function(t){var e=this.findDescriptor(4);return e?e.oti:0},s.ES_Descriptor.prototype.getAudioConfig=function(t){var e=this.findDescriptor(4);if(!e)return null;var i=e.findDescriptor(5);if(!i||!i.data)return null;var s=(248&i.data[0])>>3;
1return 31===s&&i.data.length>=2&&(s=32+((7&i.data[0])<<3)+((224&i.data[1])>>5)),s},s.DecoderConfigDescriptor=function(t){s.Descriptor.call(this,4,t)},s.DecoderConfigDescriptor.prototype=new s.Descriptor,s.DecoderConfigDescriptor.prototype.parse=function(t){this.oti=t.readUint8(),this.streamType=t.readUint8(),this.bufferSize=t.readUint24(),this.maxBitrate=t.readUint32(),this.avgBitrate=t.readUint32(),this.size-=13,this.parseRemainingDescriptors(t)},s.DecoderSpecificInfo=function(t){s.Descriptor.call(this,5,t)},s.DecoderSpecificInfo.prototype=new s.Descriptor,s.SLConfigDescriptor=function(t){s.Descriptor.call(this,6,t)},s.SLConfigDescriptor.prototype=new s.Descriptor,this},o={ERR_INVALID_DATA:-1,ERR_NOT_ENOUGH_DATA:0,OK:1,BASIC_BOXES:["mdat","idat","free","skip","meco","strk"],FULL_BOXES:["hmhd","nmhd","iods","xml ","bxml","ipro","mere"],CONTAINER_BOXES:[["moov",["trak","pssh"]],["trak"],["edts"],["mdia"],["minf"],["dinf"],["stbl",["sgpd","sbgp"]],["mvex",["trex"]],["moof",["traf"]],["traf",["trun","sgpd","sbgp"]],["vttc"],["tref"],["iref"],["mfra",["tfra"]],["meco"],["hnti"],["hinf"],["strk"],["strd"],["sinf"],["rinf"],["schi"],["trgr"],["udta",["kind"]],["iprp",["ipma"]],["ipco"]],boxCodes:[],fullBoxCodes:[],containerBoxCodes:[],sampleEntryCodes:{},sampleGroupEntryCodes:[],trackGroupTypes:[],UUIDBoxes:{},UUIDs:[],initialize:function(){o.FullBox.prototype=new o.Box,o.ContainerBox.prototype=new o.Box,o.SampleEntry.prototype=new o.Box,o.TrackGroupTypeBox.prototype=new o.FullBox,o.BASIC_BOXES.forEach(function(t){o.createBoxCtor(t)}),o.FULL_BOXES.forEach(function(t){o.createFullBoxCtor(t)}),o.CONTAINER_BOXES.forEach(function(t){o.createContainerBoxCtor(t[0],null,t[1])})},Box:function(t,e,i){this.type=t,this.size=e,this.uuid=i},FullBox:function(t,e,i){o.Box.call(this,t,e,i),this.flags=0,this.version=0},ContainerBox:function(t,e,i){o.Box.call(this,t,e,i),this.boxes=[]},SampleEntry:function(t,e,i,s){o.ContainerBox.call(this,t,e),this.hdr_size=i,this.start=s},SampleGroupEntry:function(t){this.grouping_type=t},TrackGroupTypeBox:function(t,e){o.FullBox.call(this,t,e)},createBoxCtor:function(t,e){o.boxCodes.push(t),o[t+"Box"]=function(e){o.Box.call(this,t,e)},o[t+"Box"].prototype=new o.Box,e&&(o[t+"Box"].prototype.parse=e)},createFullBoxCtor:function(t,e){o[t+"Box"]=function(e){o.FullBox.call(this,t,e)},o[t+"Box"].prototype=new o.FullBox,o[t+"Box"].prototype.parse=function(t){this.parseFullHeader(t),e&&e.call(this,t)}},addSubBoxArrays:function(t){if(t){this.subBoxNames=t;for(var e=t.length,i=0;i<e;i++)this[t[i]+"s"]=[]}},createContainerBoxCtor:function(t,e,i){o[t+"Box"]=function(e){o.ContainerBox.call(this,t,e),o.addSubBoxArrays.call(this,i)},o[t+"Box"].prototype=new o.ContainerBox,e&&(o[t+"Box"].prototype.parse=e)},createMediaSampleEntryCtor:function(t,e,i){o.sampleEntryCodes[t]=[],o[t+"SampleEntry"]=function(t,e){o.SampleEntry.call(this,t,e),o.addSubBoxArrays.call(this,i)},o[t+"SampleEntry"].prototype=new o.SampleEntry,e&&(o[t+"SampleEntry"].prototype.parse=e)},createSampleEntryCtor:function(t,e,i,s){o.sampleEntryCodes[t].push(e),o[e+"SampleEntry"]=function(i){o[t+"SampleEntry"].call(this,e,i),o.addSubBoxArrays.call(this,s)},o[e+"SampleEntry"].prototype=new o[t+"SampleEntry"],i&&(o[e+"SampleEntry"].prototype.parse=i)},createEncryptedSampleEntryCtor:function(t,e,i){o.createSampleEntryCtor.call(this,t,e,i,["sinf"])},createSampleGroupCtor:function(t,e){o[t+"SampleGroupEntry"]=function(e){o.SampleGroupEntry.call(this,t,e)},o[t+"SampleGroupEntry"].prototype=new o.SampleGroupEntry,e&&(o[t+"SampleGroupEntry"].prototype.parse=e)},createTrackGroupCtor:function(t,e){o[t+"TrackGroupTypeBox"]=function(e){o.TrackGroupTypeBox.call(this,t,e)},o[t+"TrackGroupTypeBox"].prototype=new o.TrackGroupTypeBox,e&&(o[t+"TrackGroupTypeBox"].prototype.parse=e)},createUUIDBox:function(t,e,i,s){o.UUIDs.push(t),o.UUIDBoxes[t]=function(s){e?o.FullBox.call(this,"uuid",s,t):i?o.ContainerBox.call(this,"uuid",s,t):o.Box.call(this,"uuid",s,t)},o.UUIDBoxes[t].prototype=e?new o.FullBox:i?new o.ContainerBox:new o.Box,s&&(e?o.UUIDBoxes[t].prototype.parse=function(t){this.parseFullHeader(t),s&&s.call(this,t)}:o.UUIDBoxes[t].prototype.parse=s)}};o.initialize(),o.TKHD_FLAG_ENABLED=1,o.TKHD_FLAG_IN_MOVIE=2,o.TKHD_FLAG_IN_PREVIEW=4,o.TFHD_FLAG_BASE_DATA_OFFSET=1,o.TFHD_FLAG_SAMPLE_DESC=2,o.TFHD_FLAG_SAMPLE_DUR=8,o.TFHD_FLAG_SAMPLE_SIZE=16,o.TFHD_FLAG_SAMPLE_FLAGS=32,o.TFHD_FLAG_DUR_EMPTY=65536,o.TFHD_FLAG_DEFAULT_BASE_IS_MOOF=131072,o.TRUN_FLAGS_DATA_OFFSET=1,o.TRUN_FLAGS_FIRST_FLAG=4,o.TRUN_FLAGS_DURATION=256,o.TRUN_FLAGS_SIZE=512,o.TRUN_FLAGS_FLAGS=1024,o.TRUN_FLAGS_CTS_OFFSET=2048,o.Box.prototype.add=function(t){return this.addBox(new o[t+"Box"])},o.Box.prototype.addBox=function(t){return this.boxes.push(t),this[t.type+"s"]?this[t.type+"s"].push(t):this[t.type]=t,t},o.Box.prototype.set=function(t,e){return this[t]=e,this},o.Box.prototype.addEntry=function(t,e){var i=e||"entries";return this[i]||(this[i]=[]),this[i].push(t),this},o.parseUUID=function(t){return o.parseHex16(t)},o.parseHex16=function(t){for(var e="",i=0;i<16;i++){var s=t.readUint8().toString(16);e+=1===s.length?"0"+s:s}return e},o.parseOneBox=function(t,e,s){var r,n,a,h=t.getPosition(),d=0;if(t.getEndPosition()-h<8)return i.debug("BoxParser","Not enough data in stream to parse the type and size of the box"),{code:o.ERR_NOT_ENOUGH_DATA};
1if(s&&s<8)return i.debug("BoxParser","Not enough bytes left in the parent box to parse a new box"),{code:o.ERR_NOT_ENOUGH_DATA};var l=t.readUint32(),p=t.readString(4),f=p;if(i.debug("BoxParser","Found box of type '"+p+"' and size "+l+" at position "+h),d=8,"uuid"==p){if(t.getEndPosition()-t.getPosition()<16||s-d<16)return t.seek(h),i.debug("BoxParser","Not enough bytes left in the parent box to parse a UUID box"),{code:o.ERR_NOT_ENOUGH_DATA};a=o.parseUUID(t),d+=16,f=a}if(1==l){if(t.getEndPosition()-t.getPosition()<8||s&&s-d<8)return t.seek(h),i.warn("BoxParser",'Not enough data in stream to parse the extended size of the "'+p+'" box'),{code:o.ERR_NOT_ENOUGH_DATA};l=t.readUint64(),d+=8}else if(0===l){if(s)l=s;else if("mdat"!==p)return i.error("BoxParser","Unlimited box size not supported for type: '"+p+"'"),r=new o.Box(p,l),{code:o.OK,box:r,size:r.size}}return l<d?(i.error("BoxParser","Box of type "+p+" has an invalid size "+l+" (too small to be a box)"),{code:o.ERR_NOT_ENOUGH_DATA,type:p,size:l,hdr_size:d,start:h}):s&&l>s?(i.error("BoxParser","Box of type '"+p+"' has a size "+l+" greater than its container size "+s),{code:o.ERR_NOT_ENOUGH_DATA,type:p,size:l,hdr_size:d,start:h}):h+l>t.getEndPosition()?(t.seek(h),i.info("BoxParser","Not enough data in stream to parse the entire '"+p+"' box"),{code:o.ERR_NOT_ENOUGH_DATA,type:p,size:l,hdr_size:d,start:h}):e?{code:o.OK,type:p,size:l,hdr_size:d,start:h}:(o[p+"Box"]?r=new o[p+"Box"](l):"uuid"!==p?(i.warn("BoxParser","Unknown box type: '"+p+"'"),(r=new o.Box(p,l)).has_unparsed_data=!0):o.UUIDBoxes[a]?r=new o.UUIDBoxes[a](l):(i.warn("BoxParser","Unknown uuid type: '"+a+"'"),(r=new o.Box(p,l)).uuid=a,r.has_unparsed_data=!0),r.hdr_size=d,r.start=h,r.write===o.Box.prototype.write&&"mdat"!==r.type&&(i.info("BoxParser","'"+f+"' box writing not yet implemented, keeping unparsed data in memory for later write"),r.parseDataAndRewind(t)),r.parse(t),(n=t.getPosition()-(r.start+r.size))<0?(i.warn("BoxParser","Parsing of box '"+f+"' did not read the entire indicated box data size (missing "+-n+" bytes), seeking forward"),t.seek(r.start+r.size)):n>0&&(i.error("BoxParser","Parsing of box '"+f+"' read "+n+" more bytes than the indicated box data size, seeking backwards"),t.seek(r.start+r.size)),{code:o.OK,box:r,size:r.size})},o.Box.prototype.parse=function(t){"mdat"!=this.type?this.data=t.readUint8Array(this.size-this.hdr_size):0===this.size?t.seek(t.getEndPosition()):t.seek(this.start+this.size)},o.Box.prototype.parseDataAndRewind=function(t){this.data=t.readUint8Array(this.size-this.hdr_size),t.position-=this.size-this.hdr_size},o.FullBox.prototype.parseDataAndRewind=function(t){this.parseFullHeader(t),this.data=t.readUint8Array(this.size-this.hdr_size),this.hdr_size-=4,t.position-=this.size-this.hdr_size},o.FullBox.prototype.parseFullHeader=function(t){this.version=t.readUint8(),this.flags=t.readUint24(),this.hdr_size+=4},o.FullBox.prototype.parse=function(t){this.parseFullHeader(t),this.data=t.readUint8Array(this.size-this.hdr_size)},o.ContainerBox.prototype.parse=function(t){for(;t.getPosition()<this.start+this.size;){if((e=o.parseOneBox(t,!1,this.size-(t.getPosition()-this.start))).code!==o.OK)return;if(s=e.box,this.boxes.push(s),this.subBoxNames&&-1!=this.subBoxNames.indexOf(s.type))this[this.subBoxNames[this.subBoxNames.indexOf(s.type)]+"s"].push(s);else{var e,s,r="uuid"!==s.type?s.type:s.uuid;this[r]?i.warn("Box of type "+r+" already stored in field of this type"):this[r]=s}}},o.Box.prototype.parseLanguage=function(t){this.language=t.readUint16();var e=[];e[0]=this.language>>10&31,e[1]=this.language>>5&31,e[2]=31&this.language,this.languageString=String.fromCharCode(e[0]+96,e[1]+96,e[2]+96)},o.SAMPLE_ENTRY_TYPE_VISUAL="Visual",o.SAMPLE_ENTRY_TYPE_AUDIO="Audio",o.SAMPLE_ENTRY_TYPE_HINT="Hint",o.SAMPLE_ENTRY_TYPE_METADATA="Metadata",o.SAMPLE_ENTRY_TYPE_SUBTITLE="Subtitle",o.SAMPLE_ENTRY_TYPE_SYSTEM="System",o.SAMPLE_ENTRY_TYPE_TEXT="Text",o.SampleEntry.prototype.parseHeader=function(t){t.readUint8Array(6),this.data_reference_index=t.readUint16(),this.hdr_size+=8},o.SampleEntry.prototype.parse=function(t){this.parseHeader(t),this.data=t.readUint8Array(this.size-this.hdr_size)},o.SampleEntry.prototype.parseDataAndRewind=function(t){this.parseHeader(t),this.data=t.readUint8Array(this.size-this.hdr_size),this.hdr_size-=8,t.position-=this.size-this.hdr_size},o.SampleEntry.prototype.parseFooter=function(t){o.ContainerBox.prototype.parse.call(this,t)},o.createMediaSampleEntryCtor(o.SAMPLE_ENTRY_TYPE_HINT),o.createMediaSampleEntryCtor(o.SAMPLE_ENTRY_TYPE_METADATA),o.createMediaSampleEntryCtor(o.SAMPLE_ENTRY_TYPE_SUBTITLE),o.createMediaSampleEntryCtor(o.SAMPLE_ENTRY_TYPE_SYSTEM),o.createMediaSampleEntryCtor(o.SAMPLE_ENTRY_TYPE_TEXT),o.createMediaSampleEntryCtor(o.SAMPLE_ENTRY_TYPE_VISUAL,function(t){var e;this.parseHeader(t),t.readUint16(),t.readUint16(),t.readUint32Array(3),this.width=t.readUint16(),this.height=t.readUint16(),this.horizresolution=t.readUint32(),this.vertresolution=t.readUint32(),t.readUint32(),this.frame_count=t.readUint16(),e=Math.min(31,t.readUint8()),this.compressorname=t.readString(e),e<31&&t.readString(31-e),this.depth=t.readUint16(),t.readUint16(),this.parseFooter(t)}),o.createMediaSampleEntryCtor(o.SAMPLE_ENTRY_TYPE_AUDIO,function(t){this.parseHeader(t),t.readUint32Array(2),this.channel_c
1ount=t.readUint16(),this.samplesize=t.readUint16(),t.readUint16(),t.readUint16(),this.samplerate=t.readUint32()/65536,this.parseFooter(t)}),o.createSampleEntryCtor(o.SAMPLE_ENTRY_TYPE_VISUAL,"avc1"),o.createSampleEntryCtor(o.SAMPLE_ENTRY_TYPE_VISUAL,"avc2"),o.createSampleEntryCtor(o.SAMPLE_ENTRY_TYPE_VISUAL,"avc3"),o.createSampleEntryCtor(o.SAMPLE_ENTRY_TYPE_VISUAL,"avc4"),o.createSampleEntryCtor(o.SAMPLE_ENTRY_TYPE_VISUAL,"av01"),o.createSampleEntryCtor(o.SAMPLE_ENTRY_TYPE_VISUAL,"hvc1"),o.createSampleEntryCtor(o.SAMPLE_ENTRY_TYPE_VISUAL,"hev1"),o.createSampleEntryCtor(o.SAMPLE_ENTRY_TYPE_AUDIO,"mp4a"),o.createSampleEntryCtor(o.SAMPLE_ENTRY_TYPE_AUDIO,"ac-3"),o.createSampleEntryCtor(o.SAMPLE_ENTRY_TYPE_AUDIO,"ec-3"),o.createEncryptedSampleEntryCtor(o.SAMPLE_ENTRY_TYPE_VISUAL,"encv"),o.createEncryptedSampleEntryCtor(o.SAMPLE_ENTRY_TYPE_AUDIO,"enca"),o.createEncryptedSampleEntryCtor(o.SAMPLE_ENTRY_TYPE_SUBTITLE,"encu"),o.createEncryptedSampleEntryCtor(o.SAMPLE_ENTRY_TYPE_SYSTEM,"encs"),o.createEncryptedSampleEntryCtor(o.SAMPLE_ENTRY_TYPE_TEXT,"enct"),o.createEncryptedSampleEntryCtor(o.SAMPLE_ENTRY_TYPE_METADATA,"encm"),o.createBoxCtor("a1lx",function(t){var e=((1&(1&t.readUint8()))+1)*16;this.layer_size=[];for(var i=0;i<3;i++)16==e?this.layer_size[i]=t.readUint16():this.layer_size[i]=t.readUint32()}),o.createBoxCtor("a1op",function(t){this.op_index=t.readUint8()}),o.createFullBoxCtor("auxC",function(t){this.aux_type=t.readCString();var e=this.size-this.hdr_size-(this.aux_type.length+1);this.aux_subtype=t.readUint8Array(e)}),o.createBoxCtor("av1C",function(t){var e=t.readUint8();if(e>>7&!1)return void i.error("av1C marker problem");if(this.version=127&e,1!==this.version)return void i.error("av1C version "+this.version+" not supported");if(e=t.readUint8(),this.seq_profile=e>>5&7,this.seq_level_idx_0=31&e,e=t.readUint8(),this.seq_tier_0=e>>7&1,this.high_bitdepth=e>>6&1,this.twelve_bit=e>>5&1,this.monochrome=e>>4&1,this.chroma_subsampling_x=e>>3&1,this.chroma_subsampling_y=e>>2&1,this.chroma_sample_position=3&e,e=t.readUint8(),this.reserved_1=e>>5&7,0!==this.reserved_1)return void i.error("av1C reserved_1 parsing problem");if(this.initial_presentation_delay_present=e>>4&1,1===this.initial_presentation_delay_present)this.initial_presentation_delay_minus_one=15&e;else if(this.reserved_2=15&e,0!==this.reserved_2)return void i.error("av1C reserved_2 parsing problem");var s=this.size-this.hdr_size-4;this.configOBUs=t.readUint8Array(s)}),o.createBoxCtor("avcC",function(t){var e,i;for(this.configurationVersion=t.readUint8(),this.AVCProfileIndication=t.readUint8(),this.profile_compatibility=t.readUint8(),this.AVCLevelIndication=t.readUint8(),this.lengthSizeMinusOne=3&t.readUint8(),this.nb_SPS_nalus=31&t.readUint8(),i=this.size-this.hdr_size-6,this.SPS=[],e=0;e<this.nb_SPS_nalus;e++)this.SPS[e]={},this.SPS[e].length=t.readUint16(),this.SPS[e].nalu=t.readUint8Array(this.SPS[e].length),i-=2+this.SPS[e].length;for(this.nb_PPS_nalus=t.readUint8(),i--,this.PPS=[],e=0;e<this.nb_PPS_nalus;e++)this.PPS[e]={},this.PPS[e].length=t.readUint16(),this.PPS[e].nalu=t.readUint8Array(this.PPS[e].length),i-=2+this.PPS[e].length;i>0&&(this.ext=t.readUint8Array(i))}),o.createBoxCtor("btrt",function(t){this.bufferSizeDB=t.readUint32(),this.maxBitrate=t.readUint32(),this.avgBitrate=t.readUint32()}),o.createBoxCtor("clap",function(t){this.cleanApertureWidthN=t.readUint32(),this.cleanApertureWidthD=t.readUint32(),this.cleanApertureHeightN=t.readUint32(),this.cleanApertureHeightD=t.readUint32(),this.horizOffN=t.readUint32(),this.horizOffD=t.readUint32(),this.vertOffN=t.readUint32(),this.vertOffD=t.readUint32()}),o.createBoxCtor("clli",function(t){this.max_content_light_level=t.readUint16(),this.max_pic_average_light_level=t.readUint16()}),o.createFullBoxCtor("co64",function(t){var e,i;if(e=t.readUint32(),this.chunk_offsets=[],0===this.version)for(i=0;i<e;i++)this.chunk_offsets.push(t.readUint64())}),o.createFullBoxCtor("CoLL",function(t){this.maxCLL=t.readUint16(),this.maxFALL=t.readUint16()}),o.createBoxCtor("colr",function(t){if(this.colour_type=t.readString(4),"nclx"===this.colour_type){this.colour_primaries=t.readUint16(),this.transfer_characteristics=t.readUint16(),this.matrix_coefficients=t.readUint16();var e=t.readUint8();this.full_range_flag=e>>7}else"rICC"===this.colour_type?this.ICC_profile=t.readUint8Array(this.size-4):"prof"===this.colour_type&&(this.ICC_profile=t.readUint8Array(this.size-4))}),o.createFullBoxCtor("cprt",function(t){this.parseLanguage(t),this.notice=t.readCString()}),o.createFullBoxCtor("cslg",function(t){0===this.version&&(this.compositionToDTSShift=t.readInt32(),this.leastDecodeToDisplayDelta=t.readInt32(),this.greatestDecodeToDisplayDelta=t.readInt32(),this.compositionStartTime=t.readInt32(),this.compositionEndTime=t.readInt32())}),o.createFullBoxCtor("ctts",function(t){if(e=t.readUint32(),this.sample_counts=[],this.sample_offsets=[],0===this.version)for(s=0;s<e;s++){this.sample_counts.push(t.readUint32());var e,s,r=t.readInt32();r<0&&i.warn("BoxParser","ctts box uses negative values without using version 1"),this.sample_offsets.push(r)}else if(1==this.version)for(s=0;s<e;s++)this.sample_counts.push(t.readUint32()),this.sample_offsets.push(t.readInt32())}),o.createBoxCtor("dac3",function(t){var e=t.readUint8(),i=t.readUint8(),s=t.readUint8();this.fscod=e>>6,this.bsid=e>>1&31,this.bsmod=(1&e)<<2|i>>6&3,this.acmod=i>>3&7,this.lfeon=i>>2&1,this.bit_rate_code=3&i|s>>5&7}),o.createBoxCtor("dec3",function(t){var e=t.readUint16();this.data_rate=e>>3,this.num_ind_sub=7&e,this.ind_subs=[];for(var i=0;i<this.num_ind_sub+1;i++){var s={};this.ind_subs.push(s);var r=t.readUint8(),n=t.readUint8(),a=t.readUint8();s.fscod=r>>6,s.bsid=r>>1&31,s.bsmod=(1&r)<<4|n>>4&15,s.acmod=n>>1&7,s.lfeon=1&n,s.num_dep_sub=a>>1&15,s.num_dep_sub>0&&(s.chan_loc=(1&a)<<8|t.readUint8())}}),o.createFullBoxCtor("dfLa",function(t){var e=[],i=["STREAMINFO","PADDING","APPLICATION","SEEKTABLE","VORBIS_COMMENT","CUESHEET","PICTURE","RESERVED"];for(this.parseFullHeader(t);;){var s=t.readUint8(),r=Math.min(127&s,i.length-1);if(r?t.readUint8Array(t.readUint24()):(t.readUint8Array(13),this.samplerate=t.readUint32()>>12,t.readUint8Array(20)),e.push(i[r]),128&s)break}this.numMetadataBlocks=e.length+" ("+e.join(", ")+")"}),o.createBoxCtor("dimm",function(t){this.bytessent=t.readUint64()}),o.createBoxCtor("dmax",function(t){this.time=t.readUint32()}),o.createBoxCtor("dmed",function(t){this.bytessent=t.readUint64()}),o.createFullBoxCtor("dref",function(t){this.entries=[];for(var e,i,s=t.readUint32(),r=0;r<s;r++){if((e=o.parseOneBox(t,!1,this.size-(t.getPosition()-this.start))).code!==o.OK)return;i=e.box,this.entries.push(i)}}),o.createBoxCtor("drep",function(t){this.bytessent=t.readUint64()}),o.createFullBoxCtor("elng",function(t){this.extended_language=t.readString(this.size-this.hdr_size)}),o.createFullBoxCtor("elst",function(t){this.entries=[];for(var e=t.readUint32(),i=0;i<e;i++){var s={};this.entries.push(s),1===this.version?(s.segment_duration=t.readUint64(),s.media_time=t.readInt64()):(s.segment_duration=t.readUint32(),s.media_time=t.readInt32()),s.media_rate_integer=t.readInt16(),s.media_rate_fraction=t.readInt16()}}),o.createFullBoxCtor("emsg",function(t){1==this.version?(this.timescale=t.readUint32(),this.presentation_time=t.readUint64(),this.event_duration=t.readUint32(),this.id=t.readUint32(),this.scheme_id_uri=t.readCString(),this.value=t.readCString()):(this.scheme_id_uri=t.readCString(),this.value=t.readCString(),this.timescale=t.readUint32(),this.presentation_time_delta=t.readUint32(),this.event_duration=t.readUint32(),this.id=t.readUint32());var e=this.size-this.hdr_size-(16+(this.scheme_id_uri.length+1)+(this.value.length+1));1==this.version&&(e-=4),this.message_data=t.readUint8Array(e)}),o.createFullBoxCtor("esds",function(t){var e=t.readUint8Array(this.size-this.hdr_size);if(void 0!==a){var i=new a;this.esd=i.parseOneDescriptor(new r(e.buffer,0,r.BIG_ENDIAN))}}),o.createBoxCtor("fiel",function(t){this.fieldCount=t.readUint8(),this.fieldOrdering=t.readUint8()}),o.createBoxCtor("frma",function(t){this.data_format=t.readString(4)}),o.createBoxCtor("ftyp",function(t){var e=this.size-this.hdr_size;this.major_brand=t.readString(4),this.minor_version=t.readUint32(),e-=8,this.compatible_brands=[];for(var i=0;e>=4;)this.compatible_brands[i]=t.readString(4),e-=4,i++}),o.createFullBoxCtor("hdlr",function(t){0===this.version&&(t.readUint32(),this.handler=t.readString(4),t.readUint32Array(3),this.name=t.readString(this.size-this.hdr_size-20),"\0"===this.name[this.name.length-1]&&(this.name=this.name.slice(0,-1)))}),o.createBoxCtor("hvcC",function(t){this.configurationVersion=t.readUint8(),r=t.readUint8(),this.general_profile_space
1=r>>6,this.general_tier_flag=(32&r)>>5,this.general_profile_idc=31&r,this.general_profile_compatibility=t.readUint32(),this.general_constraint_indicator=t.readUint8Array(6),this.general_level_idc=t.readUint8(),this.min_spatial_segmentation_idc=4095&t.readUint16(),this.parallelismType=3&t.readUint8(),this.chroma_format_idc=3&t.readUint8(),this.bit_depth_luma_minus8=7&t.readUint8(),this.bit_depth_chroma_minus8=7&t.readUint8(),this.avgFrameRate=t.readUint16(),r=t.readUint8(),this.constantFrameRate=r>>6,this.numTemporalLayers=(13&r)>>3,this.temporalIdNested=(4&r)>>2,this.lengthSizeMinusOne=3&r,this.nalu_arrays=[];var e,i,s,r,n=t.readUint8();for(e=0;e<n;e++){var a=[];this.nalu_arrays.push(a),a.completeness=(128&(r=t.readUint8()))>>7,a.nalu_type=63&r;var o=t.readUint16();for(i=0;i<o;i++){var h={};a.push(h),s=t.readUint16(),h.data=t.readUint8Array(s)}}}),o.createFullBoxCtor("iinf",function(t){var e;0===this.version?this.entry_count=t.readUint16():this.entry_count=t.readUint32(),this.item_infos=[];for(var s=0;s<this.entry_count;s++){if((e=o.parseOneBox(t,!1,this.size-(t.getPosition()-this.start))).code!==o.OK)return;"infe"!==e.box.type&&i.error("BoxParser","Expected 'infe' box, got "+e.box.type),this.item_infos[s]=e.box}}),o.createFullBoxCtor("iloc",function(t){e=t.readUint8(),this.offset_size=e>>4&15,this.length_size=15&e,e=t.readUint8(),this.base_offset_size=e>>4&15,1===this.version||2===this.version?this.index_size=15&e:this.index_size=0,this.items=[];var e,i=0;if(this.version<2)i=t.readUint16();else if(2===this.version)i=t.readUint32();else throw"version of iloc box not supported";for(var s=0;s<i;s++){var r={};if(this.items.push(r),this.version<2)r.item_ID=t.readUint16();else if(2===this.version)r.item_ID=t.readUint16();else throw"version of iloc box not supported";switch(1===this.version||2===this.version?r.construction_method=15&t.readUint16():r.construction_method=0,r.data_reference_index=t.readUint16(),this.base_offset_size){case 0:r.base_offset=0;break;case 4:r.base_offset=t.readUint32();break;case 8:r.base_offset=t.readUint64();break;default:throw"Error reading base offset size"}var n=t.readUint16();r.extents=[];for(var a=0;a<n;a++){var o={};if(r.extents.push(o),1===this.version||2===this.version)switch(this.index_size){case 0:o.extent_index=0;break;case 4:o.extent_index=t.readUint32();break;case 8:o.extent_index=t.readUint64();break;default:throw"Error reading extent index"}switch(this.offset_size){case 0:o.extent_offset=0;break;case 4:o.extent_offset=t.readUint32();break;case 8:o.extent_offset=t.readUint64();break;default:throw"Error reading extent index"}switch(this.length_size){case 0:o.extent_length=0;break;case 4:o.extent_length=t.readUint32();break;case 8:o.extent_length=t.readUint64();break;default:throw"Error reading extent index"}}}}),o.createBoxCtor("imir",function(t){var e=t.readUint8();this.reserved=e>>7,this.axis=1&e}
1),o.createFullBoxCtor("infe",function(t){if((0===this.version||1===this.version)&&(this.item_ID=t.readUint16(),this.item_protection_index=t.readUint16(),this.item_name=t.readCString(),this.content_type=t.readCString(),this.content_encoding=t.readCString()),1===this.version){this.extension_type=t.readString(4),i.warn("BoxParser","Cannot parse extension type"),t.seek(this.start+this.size);return}this.version>=2&&(2===this.version?this.item_ID=t.readUint16():3===this.version&&(this.item_ID=t.readUint32()),this.item_protection_index=t.readUint16(),this.item_type=t.readString(4),this.item_name=t.readCString(),"mime"===this.item_type?(this.content_type=t.readCString(),this.content_encoding=t.readCString()):"uri "===this.item_type&&(this.item_uri_type=t.readCString()))}),o.createFullBoxCtor("ipma",function(t){var e,i;for(entry_count=t.readUint32(),this.associations=[],e=0;e<entry_count;e++){var s={};this.associations.push(s),this.version<1?s.id=t.readUint16():s.id=t.readUint32();var r=t.readUint8();for(s.props=[],i=0;i<r;i++){var n=t.readUint8(),a={};s.props.push(a),a.essential=(128&n)>>7==1,1&this.flags?a.property_index=(127&n)<<8|t.readUint8():a.property_index=127&n}}}),o.createFullBoxCtor("iref",function(t){var e,s;for(this.references=[];t.getPosition()<this.start+this.size;){if((e=o.parseOneBox(t,!0,this.size-(t.getPosition()-this.start))).code!==o.OK)return;(s=0===this.version?new o.SingleItemTypeReferenceBox(e.type,e.size,e.hdr_size,e.start):new o.SingleItemTypeReferenceBoxLarge(e.type,e.size,e.hdr_size,e.start)).write===o.Box.prototype.write&&"mdat"!==s.type&&(i.warn("BoxParser",s.type+" box writing not yet implemented, keeping unparsed data in memory for later write"),s.parseDataAndRewind(t)),s.parse(t),this.references.push(s)}}),o.createBoxCtor("irot",function(t){this.angle=3&t.readUint8()}),o.createFullBoxCtor("ispe",function(t){this.image_width=t.readUint32(),this.image_height=t.readUint32()}),o.createFullBoxCtor("kind",function(t){this.schemeURI=t.readCString(),this.value=t.readCString()}),o.createFullBoxCtor("leva",function(t){var e=t.readUint8();this.levels=[];for(var s=0;s<e;s++){var r={};this.levels[s]=r,r.track_ID=t.readUint32();var n=t.readUint8();switch(r.padding_flag=n>>7,r.assignment_type=127&n,r.assignment_type){case 0:r.grouping_type=t.readString(4);break;case 1:r.grouping_type=t.readString(4),r.grouping_type_parameter=t.readUint32();break;case 2:case 3:break;case 4:r.sub_track_id=t.readUint32();break;default:i.warn("BoxParser","Unknown leva assignement type")}}}),o.createBoxCtor("lsel",function(t){this.layer_id=t.readUint16()}),o.createBoxCtor("maxr",function(t){this.period=t.readUint32(),this.bytes=t.readUint32()}),o.createBoxCtor("mdcv",function(t){this.display_primaries=[],this.display_primaries[0]={},this.display_primaries[0].x=t.readUint16(),this.display_primaries[0].y=t.readUint16(),this.display_primaries[1]={},this.display_primaries[1].x=t.readUint16(),this.display_primaries[1].y=t.readUint16(),this.display_primaries[2]={},this.display_primaries[2].x=t.readUint16(),this.display_primaries[2].y=t.readUint16(),this.white_point={},this.white_point.x=t.readUint16(),this.white_point.y=t.readUint16(),this.max_display_mastering_luminance=t.readUint32(),this.min_display_mastering_luminance=t.readUint32()}),o.createFullBoxCtor("mdhd",function(t){1==this.version?(this.creation_time=t.readUint64(),this.modification_time=t.readUint64(),this.timescale=t.readUint32(),this.duration=t.readUint64()):(this.creation_time=t.readUint32(),this.modification_time=t.readUint32(),this.timescale=t.readUint32(),this.duration=t.readUint32()),this.parseLanguage(t),t.readUint16()}),o.createFullBoxCtor("mehd",function(t){1&this.flags&&(i.warn("BoxParser","mehd box incorrectly uses flags set to 1, converting version to 1"),this.version=1),1==this.version?this.fragment_duration=t.readUint64():this.fragment_duration=t.readUint32()}),o.createFullBoxCtor("meta",function(t){this.boxes=[],o.ContainerBox.prototype.parse.call(this,t)}),o.createFullBoxCtor("mfhd",function(t){this.sequence_number=t.readUint32()}),o.createFullBoxCtor("mfro",function(t){this._size=t.readUint32()}),o.createFullBoxCtor("mvhd",function(t){1==this.version?(this.creation_time=t.readUint64(),this.modification_time=t.readUint64(),this.timescale=t.readUint32(),this.duration=t.readUint64()):(this.creation_time=t.readUint32(),this.modification_time=t.readUint32(),this.timescale=t.readUint32(),this.duration=t.readUint32()),this.rate=t.readUint32(),this.volume=t.readUint16()>>8,t.readUint16(),t.readUint32Array(2),this.matrix=t.readUint32Array(9),t.readUint32Array(6),this.next_track_id=t.readUint32()}),o.createBoxCtor("npck",function(t){this.packetssent=t.readUint32()}),o.createBoxCtor("nump",function(t){this.packetssent=t.readUint64()}),o.createFullBoxCtor("padb",function(t){var e=t.readUint32();this.padbits=[];for(var i=0;i<Math.floor((e+1)/2);i++)this.padbits=t.readUint8()}),o.createBoxCtor("pasp",function(t){this.hSpacing=t.readUint32(),this.vSpacing=t.readUint32()}),o.createBoxCtor("payl",function(t){this.text=t.readString(this.size-this.hdr_size)}),o.createBoxCtor("payt",function(t){this.payloadID=t.readUint32();var e=t.readUint8();this.rtpmap_string=t.readString(e)}),o.createFullBoxCtor("pdin",function(t){var e=(this.size-this.hdr_size)/8;this.rate=[],this.initial_delay=[];for(var i=0;i<e;i++)this.rate[i]=t.readUint32(),this.initial_delay[i]=t.readUint32()}),o.createFullBoxCtor("pitm",function(t){0===this.version?this.item_id=t.readUint16():this.item_id=t.readUint32()}),o.createFullBoxCtor("pixi",function(t){var e;
1for(this.num_channels=t.readUint8(),this.bits_per_channels=[],e=0;e<this.num_channels;e++)this.bits_per_channels[e]=t.readUint8()}),o.createBoxCtor("pmax",function(t){this.bytes=t.readUint32()}),o.createFullBoxCtor("prft",function(t){this.ref_track_id=t.readUint32(),this.ntp_timestamp=t.readUint64(),0===this.version?this.media_time=t.readUint32():this.media_time=t.readUint64()}),o.createFullBoxCtor("pssh",function(t){if(this.system_id=o.parseHex16(t),this.version>0){var e=t.readUint32();this.kid=[];for(var i=0;i<e;i++)this.kid[i]=o.parseHex16(t)}var s=t.readUint32();s>0&&(this.data=t.readUint8Array(s))}),o.createFullBoxCtor("clef",function(t){this.width=t.readUint32(),this.height=t.readUint32()}),o.createFullBoxCtor("enof",function(t){this.width=t.readUint32(),this.height=t.readUint32()}),o.createFullBoxCtor("prof",function(t){this.width=t.readUint32(),this.height=t.readUint32()}),o.createContainerBoxCtor("tapt",null,["clef","prof","enof"]),o.createBoxCtor("rtp ",function(t){this.descriptionformat=t.readString(4),this.sdptext=t.readString(this.size-this.hdr_size-4)}),o.createFullBoxCtor("saio",function(t){1&this.flags&&(this.aux_info_type=t.readUint32(),this.aux_info_type_parameter=t.readUint32());var e=t.readUint32();this.offset=[];for(var i=0;i<e;i++)0===this.version?this.offset[i]=t.readUint32():this.offset[i]=t.readUint64()}),o.createFullBoxCtor("saiz",function(t){1&this.flags&&(this.aux_info_type=t.readUint32(),this.aux_info_type_parameter=t.readUint32()),this.default_sample_info_size=t.readUint8();var e=t.readUint32();if(this.sample_info_size=[],0===this.default_sample_info_size)for(var i=0;i<e;i++)this.sample_info_size[i]=t.readUint8()}),o.createSampleEntryCtor(o.SAMPLE_ENTRY_TYPE_METADATA,"mett",function(t){this.parseHeader(t),this.content_encoding=t.readCString(),this.mime_format=t.readCString(),this.parseFooter(t)}),o.createSampleEntryCtor(o.SAMPLE_ENTRY_TYPE_METADATA,"metx",function(t){this.parseHeader(t),this.content_encoding=t.readCString(),this.namespace=t.readCString(),this.schema_location=t.readCString(),this.parseFooter(t)}),o.createSampleEntryCtor(o.SAMPLE_ENTRY_TYPE_SUBTITLE,"sbtt",function(t){this.parseHeader(t),this.content_encoding=t.readCString(),this.mime_format=t.readCString(),this.parseFooter(t)}),o.createSampleEntryCtor(o.SAMPLE_ENTRY_TYPE_SUBTITLE,"stpp",function(t){this.parseHeader(t),this.namespace=t.readCString(),this.schema_location=t.readCString(),this.auxiliary_mime_types=t.readCString(),this.parseFooter(t)}),o.createSampleEntryCtor(o.SAMPLE_ENTRY_TYPE_SUBTITLE,"stxt",function(t){this.parseHeader(t),this.content_encoding=t.readCString(),this.mime_format=t.readCString(),this.parseFooter(t)}),o.createSampleEntryCtor(o.SAMPLE_ENTRY_TYPE_SUBTITLE,"tx3g",function(t){this.parseHeader(t),this.displayFlags=t.readUint32(),this.horizontal_justification=t.readInt8(),this.vertical_justification=t.readInt8(),this.bg_color_rgba=t.readUint8Array(4),this.box_record=t.readInt16Array(4),this.style_record=t.readUint8Array(12),this.parseFooter(t)}),o.createSampleEntryCtor(o.SAMPLE_ENTRY_TYPE_METADATA,"wvtt",function(t){this.parseHeader(t),this.parseFooter(t)}),o.createSampleGroupCtor("alst",function(t){var e,i=t.readUint16();for(this.first_output_sample=t.readUint16(),this.sample_offset=[],e=0;e<i;e++)this.sample_offset[e]=t.readUint32();var s=this.description_length-4-4*i;for(this.num_output_samples=[],this.num_total_samples=[],e=0;e<s/4;e++)this.num_output_samples[e]=t.readUint16(),this.num_total_samples[e]=t.readUint16()}),o.createSampleGroupCtor("avll",function(t){this.layerNumber=t.readUint8(),this.accurateStatisticsFlag=t.readUint8(),this.avgBitRate=t.readUint16(),this.avgFrameRate=t.readUint16()}),o.createSampleGroupCtor("avss",function(t){this.subSequenceIdentifier=t.readUint16(),this.layerNumber=t.readUint8();var e=t.readUint8();this.durationFlag=e>>7,this.avgRateFlag=e>>6&1,this.durationFlag&&(this.duration=t.readUint32()),this.avgRateFlag&&(this.accurateStatisticsFlag=t.readUint8(),this.avgBitRate=t.readUint16(),this.avgFrameRate=t.readUint16()),this.dependency=[];for(var i=t.readUint8(),s=0;s<i;s++){var r={};this.dependency.push(r),r.subSeqDirectionFlag=t.readUint8(),r.layerNumber=t.readUint8(),r.subSequenceIdentifier=t.readUint16()}}),o.createSampleGroupCtor("dtrt",function(t){i.warn("BoxParser","Sample Group type: "+this.grouping_type+" not fully parsed")}),o.createSampleGroupCtor("mvif",function(t){i.warn("BoxParser","Sample Group type: "+this.grouping_type+" not fully parsed")}),o.createSampleGroupCtor("prol",function(t){this.roll_distance=t.readInt16()}),o.createSampleGroupCtor("rap ",function(t){var e=t.readUint8();this.num_leading_samples_known=e>>7,this.num_leading_samples=127&e}),o.createSampleGroupCtor("rash",function(t){if(this.operation_point_count=t.readUint16(),this.description_length!==2+(1===this.operation_point_count?2:6*this.operation_point_count)+9)i.warn("BoxParser","Mismatch in "+this.grouping_type+" sample group length"),this.data=t.readUint8Array(this.description_length-2);else{if(1===this.operation_point_count)this.target_rate_share=t.readUint16();else{this.target_rate_share=[],this.available_bitrate=[];for(var e=0;e<this.operation_point_count;e++)this.available_bitrate[e]=t.readUint32(),this.target_rate_share[e]=t.readUint16()}this.maximum_bitrate=t.readUint32(),this.minimum_bitrate=t.readUint32(),this.discard_priority=t.readUint8()}}),o.createSampleGroupCtor("roll",function(t){this.roll_distance=t.readInt16()}),o.SampleGroupEntry.prototype.parse=function(t){i.warn("BoxParser","Unknown Sample Group type: "+this.grouping_type),this.data=t.readUint8Array(this.description_length)},o.createSampleGroupCtor("scif",function(t){i.warn("BoxParser","Sample Group type: "+this.grouping_type+" not fully parsed")}),o.createSampleGroupCtor("scnm",function(t){i.warn("BoxParser","Sample Group type: "+this.grouping_type+" not fully parsed")}),o.createSampleGroupCtor("seig",function(t){this.reserved=t.readUint8();var e=t.readUint8();this.crypt_byte_block=e>>4,this.skip_byte_block=15&e,this.isProtected=t.readUint8(),this.Per_Sample_IV_Size=t.readUint8(),this.KID=o.parseHex16(t),this.constant_IV_size=0,this.constant_IV=0,1===this.isProtected&&0===this.Per_Sample_IV_Size&&(this.constant_IV_size=t.readUint8(),this.constant_IV=t.readUint8Array(this.constant_IV_size))}),o.createSampleGroupCtor("stsa",function(t){i.warn("BoxParser","Sample Group type: "+this.grouping_type+" not fully parsed")}),o.createSampleGroupCtor("sync",function(t){var e=t.readUint8();this.NAL_unit_type=63&e}),o.createSampleGroupCtor("tele",function(t){var e=t.readUint8();this.level_independently_decodable=e>>7}),o.createSampleGroupCtor("tsas",function(t){i.warn("BoxParser","Sample Group type: "+this.grouping_type+" not fully parsed")}),o.createSampleGroupCtor("tscl",function(t){i.warn("BoxParser","Sample Group type: "+this.grouping_type+" not fully parsed")}),o.createSampleGroupCtor("vipr",function(t){i.warn("BoxParser","Sample Group type: "+this.grouping_type+" not fully parsed")}),o.createFullBoxCtor("sbgp",function(t){this.grouping_type=t.readString(4),1===this.version?this.grouping_type_parameter=t.readUint32():this.grouping_type_parameter=0,this.entries=[];for(var e=t.readUint32(),i=0;i<e;i++){var s={};this.entries.push(s),s.sample_count=t.readInt32(),s.group_description_index=t.readInt32()}}),o.createFullBoxCtor("schm",function(t){this.scheme_type=t.readString(4),this.scheme_version=t.readUint32(),1&this.flags&&(this.scheme_uri=t.readString(this.size-this.hdr_size-8))}),o.createBoxCtor("sdp ",function(t){this.sdptext=t.readString(this.size-this.hdr_size)}),o.createFullBoxCtor("sdtp",function(t){var e,i=this.size-this.hdr_size;this.is_leading=[],this.sample_depends_on=[],this.sample_is_depended_on=[],this.sample_has_redundancy=[];for(var s=0;s<i;s++)e=t.readUint8(),this.is_leading[s]=e>>6,this.sample_depends_on[s]=e>>4&3,this.sample_is_depended_on[s]=e>>2&3,this.sample_has_redundancy[s]=3&e}),o.createFullBoxCtor("senc"),o.createFullBoxCtor("sgpd",function(t){this.grouping_type=t.readString(4),i.debug("BoxParser","Found Sample Groups of type "+this.grouping_type),1===this.version?this.default_length=t.readUint32():this.default_length=0,this.version>=2&&(this.default_group_description_index=t.readUint32()),this.entries=[];for(var e,s=t.readUint32(),r=0;r<s;r++)e=o[this.grouping_type+"SampleGroupEntry"]?new o[this.grouping_type+"SampleGroupEntry"](this.grouping_type):new o.SampleGroupEntry(this.grouping_type),this.entries.push(e),1===this.version&&0===this.default_length?e.description_length=t.readUint32():e.description_length=this.default_length,e.write===o.SampleGroupEntry.prototype.write&&(i.info("BoxParser","SampleGroup for type "+this.grouping_type+" writing not yet implemented, keeping unparsed data in memory for later write"),e.data=t.readUint8Array(e.description_length),t.position-=e.description_length),e.parse(t)}),o.createFullBoxCtor("sidx",function(t){this.reference_ID=t.readUint32(),this.timescale=t.readUint32(),0===this.version?(this.earliest_presentation_time=t.readUint32(),this.first_offset=t.readUint32()):(this.earliest_presentation_time=t.readUint64(),this.first_offset=t.readUint64()),t.readUint16(),this.references=[];for(var e=t.readUint16(),i=0;i<e;i++){var s={};this.references.push(s);var r=t.readUint32();s.reference_type=r>>31&1,s.referenced_size=0x7fffffff&r,s.subsegment_duration=t.readUint32(),s.starts_with_SAP=(r=t.readUint32())>>31&1,s.SAP_type=r>>28&7,s.SAP_delta_time=0xfffffff&r}}
1),o.SingleItemTypeReferenceBox=function(t,e,i,s){o.Box.call(this,t,e),this.hdr_size=i,this.start=s},o.SingleItemTypeReferenceBox.prototype=new o.Box,o.SingleItemTypeReferenceBox.prototype.parse=function(t){this.from_item_ID=t.readUint16();var e=t.readUint16();this.references=[];for(var i=0;i<e;i++)this.references[i]=t.readUint16()},o.SingleItemTypeReferenceBoxLarge=function(t,e,i,s){o.Box.call(this,t,e),this.hdr_size=i,this.start=s},o.SingleItemTypeReferenceBoxLarge.prototype=new o.Box,o.SingleItemTypeReferenceBoxLarge.prototype.parse=function(t){this.from_item_ID=t.readUint32();var e=t.readUint16();this.references=[];for(var i=0;i<e;i++)this.references[i]=t.readUint32()},o.createFullBoxCtor("SmDm",function(t){this.primaryRChromaticity_x=t.readUint16(),this.primaryRChromaticity_y=t.readUint16(),this.primaryGChromaticity_x=t.readUint16(),this.primaryGChromaticity_y=t.readUint16(),this.primaryBChromaticity_x=t.readUint16(),this.primaryBChromaticity_y=t.readUint16(),this.whitePointChromaticity_x=t.readUint16(),this.whitePointChromaticity_y=t.readUint16(),this.luminanceMax=t.readUint32(),this.luminanceMin=t.readUint32()}),o.createFullBoxCtor("smhd",function(t){this.balance=t.readUint16(),t.readUint16()}),o.createFullBoxCtor("ssix",function(t){this.subsegments=[];for(var e=t.readUint32(),i=0;i<e;i++){var s={};this.subsegments.push(s),s.ranges=[];for(var r=t.readUint32(),n=0;n<r;n++){var a={};s.ranges.push(a),a.level=t.readUint8(),a.range_size=t.readUint24()}}}),o.createFullBoxCtor("stco",function(t){var e;if(e=t.readUint32(),this.chunk_offsets=[],0===this.version)for(var i=0;i<e;i++)this.chunk_offsets.push(t.readUint32())}),o.createFullBoxCtor("stdp",function(t){var e=(this.size-this.hdr_size)/2;this.priority=[];for(var i=0;i<e;i++)this.priority[i]=t.readUint16()}),o.createFullBoxCtor("sthd"),o.createFullBoxCtor("stri",function(t){this.switch_group=t.readUint16(),this.alternate_group=t.readUint16(),this.sub_track_id=t.readUint32();var e=(this.size-this.hdr_size-8)/4;this.attribute_list=[];for(var i=0;i<e;i++)this.attribute_list[i]=t.readUint32()}),o.createFullBoxCtor("stsc",function(t){var e,i;if(e=t.readUint32(),this.first_chunk=[],this.samples_per_chunk=[],this.sample_description_index=[],0===this.version)for(i=0;i<e;i++)this.first_chunk.push(t.readUint32()),this.samples_per_chunk.push(t.readUint32()),this.sample_description_index.push(t.readUint32())}),o.createFullBoxCtor("stsd",function(t){var e,s,r,n;for(this.entries=[],r=t.readUint32(),e=1;e<=r;e++){if((s=o.parseOneBox(t,!0,this.size-(t.getPosition()-this.start))).code!==o.OK)return;o[s.type+"SampleEntry"]?((n=new o[s.type+"SampleEntry"](s.size)).hdr_size=s.hdr_size,n.start=s.start):(i.warn("BoxParser","Unknown sample entry type: "+s.type),n=new o.SampleEntry(s.type,s.size,s.hdr_size,s.start)),n.write===o.SampleEntry.prototype.write&&(i.info("BoxParser","SampleEntry "+n.type+" box writing not yet implemented, keeping unparsed data in memory for later write"),n.parseDataAndRewind(t)),n.parse(t),this.entries.push(n)}}),o.createFullBoxCtor("stsg",function(t){this.grouping_type=t.readUint32();var e=t.readUint16();this.group_description_index=[];for(var i=0;i<e;i++)this.group_description_index[i]=t.readUint32()}),o.createFullBoxCtor("stsh",function(t){var e,i;if(e=t.readUint32(),this.shadowed_sample_numbers=[],this.sync_sample_numbers=[],0===this.version)for(i=0;i<e;i++)this.shadowed_sample_numbers.push(t.readUint32()),this.sync_sample_numbers.push(t.readUint32())}),o.createFullBoxCtor("stss",function(t){var e,i;if(i=t.readUint32(),0===this.version)for(this.sample_numbers=[],e=0;e<i;e++)this.sample_numbers.push(t.readUint32())}),o.createFullBoxCtor("stsz",function(t){var e;if(this.sample_sizes=[],0===this.version)for(this.sample_size=t.readUint32(),this.sample_count=t.readUint32(),e=0;e<this.sample_count;e++)0===this.sample_size?this.sample_sizes.push(t.readUint32()):this.sample_sizes[e]=this.sample_size}),o.createFullBoxCtor("stts",function(t){var e,s,r;if(e=t.readUint32(),this.sample_counts=[],this.sample_deltas=[],0===this.version)for(s=0;s<e;s++)this.sample_counts.push(t.readUint32()),(r=t.readInt32())<0&&(i.warn("BoxParser","File uses negative stts sample delta, using value 1 instead, sync may be lost!"),r=1),this.sample_deltas.push(r)}),o.createFullBoxCtor("stvi",function(t){var e,i,s=t.readUint32();this.single_view_allowed=3&s,this.stereo_scheme=t.readUint32();var r=t.readUint32();for(this.stereo_indication_type=t.readString(r),this.boxes=[];t.getPosition()<this.start+this.size;){if((e=o.parseOneBox(t,!1,this.size-(t.getPosition()-this.start))).code!==o.OK)return;i=e.box,this.boxes.push(i),this[i.type]=i}}),o.createBoxCtor("styp",function(t){o.ftypBox.prototype.parse.call(this,t)}),o.createFullBoxCtor("stz2",function(t){if(this.sample_sizes=[],0===this.version)if(this.reserved=t.readUint24(),this.field_size=t.readUint8(),s=t.readUint32(),4===this.field_size)for(e=0;e<s;e+=2){var e,s,r=t.readUint8();this.sample_sizes[e]=r>>4&15,this.sample_sizes[e+1]=15&r}else if(8===this.field_size)for(e=0;e<s;e++)this.sample_sizes[e]=t.readUint8();else if(16===this.field_size)for(e=0;e<s;e++)this.sample_sizes[e]=t.readUint16();else i.error("BoxParser","Error in length field in stz2 box")}),o.createFullBoxCtor("subs",function(t){for(s=t.readUint32(),this.entries=[],e=0;e<s;e++){var e,i,s,r,n={};if(this.entries[e]=n,n.sample_delta=t.readUint32(),n.subsamples=[],(r=t.readUint16())>0)for(i=0;i<r;i++){var a={};n.subsamples.push(a),1==this.version?a.size=t.readUint32():a.size=t.readUint16(),a.priority=t.readUint8(),a.discardable=t.readUint8(),a.codec_specific_parameters=t.readUint32()}}}),o.createFullBoxCtor("tenc",function(t){if(t.readUint8(),0===this.version)t.readUint8();else{var e=t.readUint8();this.default_crypt_byte_block=e>>4&15,this.default_skip_byte_block=15&e}this.default_isProtected=t.readUint8(),this.default_Per_Sample_IV_Size=t.readUint8(),this.default_KID=o.parseHex16(t),1===this.default_isProtected&&0===this.default_Per_Sample_IV_Size&&(this.default_constant_IV_size=t.readUint8(),this.default_constant_IV=t.readUint8Array(this.default_constant_IV_size))}),o.createFullBoxCtor("tfdt",function(t){1==this.version?this.baseMediaDecodeTime=t.readUint64():this.baseMediaDecodeTime=t.readUint32()}),o.createFullBoxCtor("tfhd",function(t){var e=0;this.track_id=t.readUint32(),this.size-this.hdr_size>e&&this.flags&o.TFHD_FLAG_BASE_DATA_OFFSET?(this.base_data_offset=t.readUint64(),e+=8):this.base_data_offset=0,this.size-this.hdr_size>e&&this.flags&o.TFHD_FLAG_SAMPLE_DESC?(this.default_sample_description_index=t.readUint32(),e+=4):this.default_sample_description_index=0,this.size-this.hdr_size>e&&this.flags&o.TFHD_FLAG_SAMPLE_DUR?(this.default_sample_duration=t.readUint32(),e+=4):this.default_sample_duration=0,this.size-this.hdr_size>e&&this.flags&o.TFHD_FLAG_SAMPLE_SIZE?(this.default_sample_size=t.readUint32(),e+=4):this.default_sample_size=0,this.size-this.hdr_size>e&&this.flags&o.TFHD_FLAG_SAMPLE_FLAGS?(this.default_sample_flags=t.readUint32(),e+=4):this.default_sample_flags=0}),o.createFullBoxCtor("tfra",function(t){this.track_ID=t.readUint32(),t.readUint24();var e=t.readUint8();this.length_size_of_traf_num=e>>4&3,this.length_size_of_trun_num=e>>2&3,this.length_size_of_sample_num=3&e,this.entries=[];for(var i=t.readUint32(),s=0;s<i;s++)1===this.version?(this.time=t.readUint64(),this.moof_offset=t.readUint64()):(this.time=t.readUint32(),this.moof_offset=t.readUint32()),this.traf_number=t["readUint"+8*(this.length_size_of_traf_num+1)](),this.trun_number=t["readUint"+8*(this.length_size_of_trun_num+1)](),this.sample_number=t["readUint"+8*(this.length_size_of_sample_num+1)]()}),o.createFullBoxCtor("tkhd",function(t){1==this.version?(this.creation_time=t.readUint64(),this.modification_time=t.readUint64(),this.track_id=t.readUint32(),t.readUint32(),this.duration=t.readUint64()):(this.creation_time=t.readUint32(),this.modification_time=t.readUint32(),this.track_id=t.readUint32(),t.readUint32(),this.duration=t.readUint32()),t.readUint32Array(2),this.layer=t.readInt16(),this.alternate_group=t.readInt16(),this.volume=t.readInt16()>>8,t.readUint16(),this.matrix=t.readInt32Array(9),this.width=t.readUint32(),this.height=t.readUint32()}),o.createBoxCtor("tmax",function(t){this.time=t.readUint32()}),o.createBoxCtor("tmin",function(t){this.time=t.readUint32()}),o.createBoxCtor("totl",function(t){this.bytessent=t.readUint32()}),o.createBoxCtor("tpay",function(t){this.bytessent=t.readUint32()}),o.createBoxCtor("tpyl",function(t){this.bytessent=t.readUint64()}),o.TrackGroupTypeBox.prototype.parse=function(t){this.parseFullHeader(t),this.track_group_id=t.readUint32()},o.createTrackGroupCtor("msrc"),o.TrackReferenceTypeBox=function(t,e,
1i,s){o.Box.call(this,t,e),this.hdr_size=i,this.start=s},o.TrackReferenceTypeBox.prototype=new o.Box,o.TrackReferenceTypeBox.prototype.parse=function(t){this.track_ids=t.readUint32Array((this.size-this.hdr_size)/4)},o.trefBox.prototype.parse=function(t){for(var e,s;t.getPosition()<this.start+this.size;){if((e=o.parseOneBox(t,!0,this.size-(t.getPosition()-this.start))).code!==o.OK)return;(s=new o.TrackReferenceTypeBox(e.type,e.size,e.hdr_size,e.start)).write===o.Box.prototype.write&&"mdat"!==s.type&&(i.info("BoxParser","TrackReference "+s.type+" box writing not yet implemented, keeping unparsed data in memory for later write"),s.parseDataAndRewind(t)),s.parse(t),this.boxes.push(s)}},o.createFullBoxCtor("trep",function(t){for(this.track_ID=t.readUint32(),this.boxes=[];t.getPosition()<this.start+this.size;){if((ret=o.parseOneBox(t,!1,this.size-(t.getPosition()-this.start))).code!==o.OK)return;box=ret.box,this.boxes.push(box)}}),o.createFullBoxCtor("trex",function(t){this.track_id=t.readUint32(),this.default_sample_description_index=t.readUint32(),this.default_sample_duration=t.readUint32(),this.default_sample_size=t.readUint32(),this.default_sample_flags=t.readUint32()}),o.createBoxCtor("trpy",function(t){this.bytessent=t.readUint64()}),o.createFullBoxCtor("trun",function(t){var e=0;if(this.sample_count=t.readUint32(),e+=4,this.size-this.hdr_size>e&&this.flags&o.TRUN_FLAGS_DATA_OFFSET?(this.data_offset=t.readInt32(),e+=4):this.data_offset=0,this.size-this.hdr_size>e&&this.flags&o.TRUN_FLAGS_FIRST_FLAG?(this.first_sample_flags=t.readUint32(),e+=4):this.first_sample_flags=0,this.sample_duration=[],this.sample_size=[],this.sample_flags=[],this.sample_composition_time_offset=[],this.size-this.hdr_size>e)for(var i=0;i<this.sample_count;i++)this.flags&o.TRUN_FLAGS_DURATION&&(this.sample_duration[i]=t.readUint32()),this.flags&o.TRUN_FLAGS_SIZE&&(this.sample_size[i]=t.readUint32()),this.flags&o.TRUN_FLAGS_FLAGS&&(this.sample_flags[i]=t.readUint32()),this.flags&o.TRUN_FLAGS_CTS_OFFSET&&(0===this.version?this.sample_composition_time_offset[i]=t.readUint32():this.sample_composition_time_offset[i]=t.readInt32())}),o.createFullBoxCtor("tsel",function(t){this.switch_group=t.readUint32();var e=(this.size-this.hdr_size-4)/4;this.attribute_list=[];for(var i=0;i<e;i++)this.attribute_list[i]=t.readUint32()}),o.createFullBoxCtor("txtC",function(t){this.config=t.readCString()}),o.createFullBoxCtor("url ",function(t){1!==this.flags&&(this.location=t.readCString())}),o.createFullBoxCtor("urn ",function(t){this.name=t.readCString(),this.size-this.hdr_size-this.name.length-1>0&&(this.location=t.readCString())}),o.createUUIDBox("a5d40b30e81411ddba2f0800200c9a66",!0,!1,function(t){this.LiveServerManifest=t.readString(this.size-this.hdr_size).replace(/&/g,"&").replace(/</g,"<").replace(/>/g,">").replace(/"/g,""").replace(/'/g,"'")}),o.createUUIDBox("d08a4f1810f34a82b6c832d8aba183d3",!0,!1,function(t){this.system_id=o.parseHex16(t);var e=t.readUint32();e>0&&(this.data=t.readUint8Array(e))}),o.createUUIDBox("a2394f525a9b4f14a2446c427c648df4",!0,!1),o.createUUIDBox("8974dbce7be74c5184f97148f9882554",!0,!1,function(t){this.default_AlgorithmID=t.readUint24(),this.default_IV_size=t.readUint8(),this.default_KID=o.parseHex16(t)}),o.createUUIDBox("d4807ef2ca3946958e5426cb9e46a79f",!0,!1,function(t){this.fragment_count=t.readUint8(),this.entries=[];for(var e=0;e<this.fragment_count;e++){var i={},s=0,r=0;1===this.version?(s=t.readUint64(),r=t.readUint64()):(s=t.readUint32(),r=t.readUint32()),i.absolute_time=s,i.absolute_duration=r,this.entries.push(i)}}
1),o.createUUIDBox("6d1d9b0542d544e680e2141daff757b2",!0,!1,function(t){1===this.version?(this.absolute_time=t.readUint64(),this.duration=t.readUint64()):(this.absolute_time=t.readUint32(),this.duration=t.readUint32())}),o.createFullBoxCtor("vmhd",function(t){this.graphicsmode=t.readUint16(),this.opcolor=t.readUint16Array(3)}),o.createFullBoxCtor("vpcC",function(t){var e;1===this.version?(this.profile=t.readUint8(),this.level=t.readUint8(),e=t.readUint8(),this.bitDepth=e>>4,this.chromaSubsampling=e>>1&7,this.videoFullRangeFlag=1&e,this.colourPrimaries=t.readUint8(),this.transferCharacteristics=t.readUint8(),this.matrixCoefficients=t.readUint8()):(this.profile=t.readUint8(),this.level=t.readUint8(),e=t.readUint8(),this.bitDepth=e>>4&15,this.colorSpace=15&e,e=t.readUint8(),this.chromaSubsampling=e>>4&15,this.transferFunction=e>>1&7,this.videoFullRangeFlag=1&e),this.codecIntializationDataSize=t.readUint16(),this.codecIntializationData=t.readUint8Array(this.codecIntializationDataSize)}),o.createBoxCtor("vttC",function(t){this.text=t.readString(this.size-this.hdr_size)}),o.SampleEntry.prototype.isVideo=function(){return!1},o.SampleEntry.prototype.isAudio=function(){return!1},o.SampleEntry.prototype.isSubtitle=function(){return!1},o.SampleEntry.prototype.isMetadata=function(){return!1},o.SampleEntry.prototype.isHint=function(){return!1},o.SampleEntry.prototype.getCodec=function(){return this.type.replace(".","")},o.SampleEntry.prototype.getWidth=function(){return""},o.SampleEntry.prototype.getHeight=function(){return""},o.SampleEntry.prototype.getChannelCount=function(){return""},o.SampleEntry.prototype.getSampleRate=function(){return""},o.SampleEntry.prototype.getSampleSize=function(){return""},o.VisualSampleEntry.prototype.isVideo=function(){return!0},o.VisualSampleEntry.prototype.getWidth=function(){return this.width},o.VisualSampleEntry.prototype.getHeight=function(){return this.height},o.AudioSampleEntry.prototype.isAudio=function(){return!0},o.AudioSampleEntry.prototype.getChannelCount=function(){return this.channel_count},o.AudioSampleEntry.prototype.getSampleRate=function(){return this.samplerate},o.AudioSampleEntry.prototype.getSampleSize=function(){return this.samplesize},o.SubtitleSampleEntry.prototype.isSubtitle=function(){return!0},o.MetadataSampleEntry.prototype.isMetadata=function(){return!0},o.decimalToHex=function(t,e){var i=Number(t).toString(16);for(e=null==e?e=2:e;i.length<e;)i="0"+i;return i},o.avc1SampleEntry.prototype.getCodec=o.avc2SampleEntry.prototype.getCodec=o.avc3SampleEntry.prototype.getCodec=o.avc4SampleEntry.prototype.getCodec=function(){var t=o.SampleEntry.prototype.getCodec.call(this);return this.avcC?t+"."+o.decimalToHex(this.avcC.AVCProfileIndication)+o.decimalToHex(this.avcC.profile_compatibility)+o.decimalToHex(this.avcC.AVCLevelIndication):t},o.hev1SampleEntry.prototype.getCodec=o.hvc1SampleEntry.prototype.getCodec=function(){var t,e=o.SampleEntry.prototype.getCodec.call(this);if(this.hvcC){switch(e+=".",this.hvcC.general_profile_space){case 0:e+="";break;case 1:e+="A";break;case 2:e+="B";break;case 3:e+="C"}e+=this.hvcC.general_profile_idc,e+=".";var i=this.hvcC.general_profile_compatibility,s=0;for(t=0;t<32&&(s|=1&i,31!=t);t++)s<<=1,i>>=1;e+=o.decimalToHex(s,0),e+=".",0===this.hvcC.general_tier_flag?e+="L":e+="H",e+=this.hvcC.general_level_idc;var r=!1,n="";for(t=5;t>=0;t--)(this.hvcC.general_constraint_indicator[t]||r)&&(n="."+o.decimalToHex(this.hvcC.general_constraint_indicator[t],0)+n,r=!0);e+=n}return e},o.mp4aSampleEntry.prototype.getCodec=function(){var t=o.SampleEntry.prototype.getCodec.call(this);if(!this.esds||!this.esds.esd)return t;var e=this.esds.esd.getOTI(),i=this.esds.esd.getAudioConfig();return t+"."+o.decimalToHex(e)+(i?"."+i:"")},o.stxtSampleEntry.prototype.getCodec=function(){var t=o.SampleEntry.prototype.getCodec.call(this);return this.mime_format?t+"."+this.mime_format:t},o.av01SampleEntry.prototype.getCodec=function(){var t,e=o.SampleEntry.prototype.getCodec.call(this);return 2===this.av1C.seq_profile&&1===this.av1C.high_bitdepth?t=1===this.av1C.twelve_bit?"12":"10":this.av1C.seq_profile<=2&&(t=1===this.av1C.high_bitdepth?"10":"08"),e+"."+this.av1C.seq_profile+"."+this.av1C.seq_level_idx_0+(this.av1C.seq_tier_0?"H":"M")+"."+t},o.Box.prototype.writeHeader=function(t,e){this.size+=8,this.size>0x100000000&&(this.size+=8),"uuid"===this.type&&(this.size+=16),i.debug("BoxWriter","Writing box "+this.type+" of size: "+this.size+" at position "+t.getPosition()+(e||"")),this.size>0x100000000?t.writeUint32(1):(this.sizePosition=t.getPosition(),t.writeUint32(this.size)),t.writeString(this.t
1ype,null,4),"uuid"===this.type&&t.writeUint8Array(this.uuid),this.size>0x100000000&&t.writeUint64(this.size)},o.FullBox.prototype.writeHeader=function(t){this.size+=4,o.Box.prototype.writeHeader.call(this,t," v="+this.version+" f="+this.flags),t.writeUint8(this.version),t.writeUint24(this.flags)},o.Box.prototype.write=function(t){"mdat"===this.type?this.data&&(this.size=this.data.length,this.writeHeader(t),t.writeUint8Array(this.data)):(this.size=this.data?this.data.length:0,this.writeHeader(t),this.data&&t.writeUint8Array(this.data))},o.ContainerBox.prototype.write=function(t){this.size=0,this.writeHeader(t);for(var e=0;e<this.boxes.length;e++)this.boxes[e]&&(this.boxes[e].write(t),this.size+=this.boxes[e].size);i.debug("BoxWriter","Adjusting box "+this.type+" with new size "+this.size),t.adjustUint32(this.sizePosition,this.size)},o.TrackReferenceTypeBox.prototype.write=function(t){this.size=4*this.track_ids.length,this.writeHeader(t),t.writeUint32Array(this.track_ids)},o.avcCBox.prototype.write=function(t){var e;for(this.size=7,e=0;e<this.SPS.length;e++)this.size+=2+this.SPS[e].length;for(e=0;e<this.PPS.length;e++)this.size+=2+this.PPS[e].length;for(this.ext&&(this.size+=this.ext.length),this.writeHeader(t),t.writeUint8(this.configurationVersion),t.writeUint8(this.AVCProfileIndication),t.writeUint8(this.profile_compatibility),t.writeUint8(this.AVCLevelIndication),t.writeUint8(this.lengthSizeMinusOne+252),t.writeUint8(this.SPS.length+224),e=0;e<this.SPS.length;e++)t.writeUint16(this.SPS[e].length),t.writeUint8Array(this.SPS[e].nalu);for(t.writeUint8(this.PPS.length),e=0;e<this.PPS.length;e++)t.writeUint16(this.PPS[e].length),t.writeUint8Array(this.PPS[e].nalu);this.ext&&t.writeUint8Array(this.ext)},o.co64Box.prototype.write=function(t){var e;for(this.version=0,this.flags=0,this.size=4+8*this.chunk_offsets.length,this.writeHeader(t),t.writeUint32(this.chunk_offsets.length),e=0;e<this.chunk_offsets.length;e++)t.writeUint64(this.chunk_offsets[e])},o.cslgBox.prototype.write=function(t){this.version=0,this.flags=0,this.size=20,this.writeHeader(t),t.writeInt32(this.compositionToDTSShift),t.writeInt32(this.leastDecodeToDisplayDelta),t.writeInt32(this.greatestDecodeToDisplayDelta),t.writeInt32(this.compositionStartTime),t.writeInt32(this.compositionEndTime)},o.cttsBox.prototype.write=function(t){var e;for(this.version=0,this.flags=0,this.size=4+8*this.sample_counts.length,this.writeHeader(t),t.writeUint32(this.sample_counts.length),e=0;e<this.sample_counts.length;e++)t.writeUint32(this.sample_counts[e]),1===this.version?t.writeInt32(this.sample_offsets[e]):t.writeUint32(this.sample_offsets[e])},o.drefBox.prototype.write=function(t){this.version=0,this.flags=0,this.size=4,this.writeHeader(t),t.writeUint32(this.entries.length);for(var e=0;e<this.entries.length;e++)this.entries[e].write(t),this.size+=this.entries[e].size;i.debug("BoxWriter","Adjusting box "+this.type+" with new size "+this.size),t.adjustUint32(this.sizePosition,this.size)},o.elngBox.prototype.write=function(t){this.version=0,this.flags=0,this.size=this.extended_language.length,this.writeHeader(t),t.writeString(this.extended_language)},o.elstBox.prototype.write=function(t){this.version=0,this.flags=0,this.size=4+12*this.entries.length,this.writeHeader(t),t.writeUint32(this.entries.length);for(var e=0;e<this.entries.length;e++){var i=this.entries[e];t.writeUint32(i.segment_duration),t.writeInt32(i.media_time),t.writeInt16(i.media_rate_integer),t.writeInt16(i.media_rate_fraction)}},o.emsgBox.prototype.write=function(t){this.version=0,this.flags=0,this.size=16+this.message_data.length+(this.scheme_id_uri.length+1)+(this.value.length+1),this.writeHeader(t),t.writeCString(this.scheme_id_uri),t.writeCString(this.value),t.writeUint32(this.timescale),t.writeUint32(this.presentation_time_delta),t.writeUint32(this.event_duration),t.writeUint32(this.id),t.writeUint8Array(this.message_data)},o.ftypBox.prototype.write=function(t){this.size=8+4*this.compatible_brands.length,this.writeHeader(t),t.writeString(this.major_brand,null,4),t.writeUint32(this.minor_version);for(var e=0;e<this.compatible_brands.length;e++)t.writeString(this.compatible_brands[e],null,4)},o.hdlrBox.prototype.write=function(t){this.size=20+this.name.length+1,this.version=0,this.flags=0,this.writeHeader(t),t.writeUint32(0),t.writeString(this.handler,null,4),t.writeUint32(0),t.writeUint32(0),t.writeUint32(0),t.writeCString(this.name)},o.kindBox.prototype.write=function(t){this.version=0,this.flags=0,this.size=this.schemeURI.length+1+(this.value.length+1),this.writeHeader(t),t.writeCString(this.schemeURI),t.writeCString(this.value)},o.mdhdBox.prototype.write=function(t){this.size=20,this.flags=0,this.version=0,this.writeHeader(t),t.writeUint32(this.creation_time),t.writeUint32(this.modification_time),t.writeUint32(this.timescale),t.writeUint32(this.duration),t.writeUint16(this.language),t.writeUint16(0)},o.mehdBox.prototype.write=function(t){this.version=0,this.flags=0,this.size=4,this.writeHeader(t),t.writeUint32(this.fragment_duration)},o.mfhdBox.prototype.write=function(t){this.version=0,this.flags=0,this.size=4,this.writeHeader(t),t.writeUint32(this.sequence_number)},o.mvhdBox.prototype.write=function(t){this.version=0,this.flags=0,this.size=96,this.writeHeader(t),t.writeUint32(this.creation_time),t.writeUint32(this.modification_time),t.writeUint32(this.timescale),t.writeUint32(this.duration),t.writeUint32(this.rate),t.writeUint16(this.volume<<8),t.writeUint16(0),t.writeUint32(0),t.writeUint32(0),t.writeUint32Array(this.matrix
1),t.writeUint32(0),t.writeUint32(0),t.writeUint32(0),t.writeUint32(0),t.writeUint32(0),t.writeUint32(0),t.writeUint32(this.next_track_id)},o.SampleEntry.prototype.writeHeader=function(t){this.size=8,o.Box.prototype.writeHeader.call(this,t),t.writeUint8(0),t.writeUint8(0),t.writeUint8(0),t.writeUint8(0),t.writeUint8(0),t.writeUint8(0),t.writeUint16(this.data_reference_index)},o.SampleEntry.prototype.writeFooter=function(t){for(var e=0;e<this.boxes.length;e++)this.boxes[e].write(t),this.size+=this.boxes[e].size;i.debug("BoxWriter","Adjusting box "+this.type+" with new size "+this.size),t.adjustUint32(this.sizePosition,this.size)},o.SampleEntry.prototype.write=function(t){this.writeHeader(t),t.writeUint8Array(this.data),this.size+=this.data.length,i.debug("BoxWriter","Adjusting box "+this.type+" with new size "+this.size),t.adjustUint32(this.sizePosition,this.size)},o.VisualSampleEntry.prototype.write=function(t){this.writeHeader(t),this.size+=70,t.writeUint16(0),t.writeUint16(0),t.writeUint32(0),t.writeUint32(0),t.writeUint32(0),t.writeUint16(this.width),t.writeUint16(this.height),t.writeUint32(this.horizresolution),t.writeUint32(this.vertresolution),t.writeUint32(0),t.writeUint16(this.frame_count),t.writeUint8(Math.min(31,this.compressorname.length)),t.writeString(this.compressorname,null,31),t.writeUint16(this.depth),t.writeInt16(-1),this.writeFooter(t)},o.AudioSampleEntry.prototype.write=function(t){this.writeHeader(t),this.size+=20,t.writeUint32(0),t.writeUint32(0),t.writeUint16(this.channel_count),t.writeUint16(this.samplesize),t.writeUint16(0),t.writeUint16(0),t.writeUint32(this.samplerate<<16),this.writeFooter(t)},o.stppSampleEntry.prototype.write=function(t){this.writeHeader(t),this.size+=this.namespace.length+1+this.schema_location.length+1+this.auxiliary_mime_types.length+1,t.writeCString(this.namespace),t.writeCString(this.schema_location),t.writeCString(this.auxiliary_mime_types),this.writeFooter(t)},o.SampleGroupEntry.prototype.write=function(t){t.writeUint8Array(this.data)},o.sbgpBox.prototype.write=function(t){this.version=1,this.flags=0,this.size=12+8*this.entries.length,this.writeHeader(t),t.writeString(this.grouping_type,null,4),t.writeUint32(this.grouping_type_parameter),t.writeUint32(this.entries.length);for(var e=0;e<this.entries.length;e++){var i=this.entries[e];t.writeInt32(i.sample_count),t.writeInt32(i.group_description_index)}},o.sgpdBox.prototype.write=function(t){var e,i;for(this.flags=0,this.size=12,e=0;e<this.entries.length;e++)i=this.entries[e],1===this.version&&(0===this.default_length&&(this.size+=4),this.size+=i.data.length);for(this.writeHeader(t),t.writeString(this.grouping_type,null,4),1===this.version&&t.writeUint32(this.default_length),this.version>=2&&t.writeUint32(this.default_sample_description_index),t.writeUint32(this.entries.length),e=0;e<this.entries.length;e++)i=this.entries[e],1===this.version&&0===this.default_length&&t.writeUint32(i.description_length),i.write(t)},o.sidxBox.prototype.write=function(t){this.version=0,this.flags=0,this.size=20+12*this.references.length,this.writeHeader(t),t.writeUint32(this.reference_ID),t.writeUint32(this.timescale),t.writeUint32(this.earliest_presentation_time),t.writeUint32(this.first_offset),t.writeUint16(0),t.writeUint16(this.references.length);for(var e=0;e<this.references.length;e++){var i=this.references[e];t.writeUint32(i.reference_type<<31|i.referenced_size),t.writeUint32(i.subsegment_duration),t.writeUint32(i.starts_with_SAP<<31|i.SAP_type<<28|i.SAP_delta_time)}},o.stcoBox.prototype.write=function(t){this.version=0,this.flags=0,this.size=4+4*this.chunk_offsets.length,this.writeHeader(t),t.writeUint32(this.chunk_offsets.length),t.writeUint32Array(this.chunk_offsets)},o.stscBox.prototype.write=function(t){var e;for(this.version=0,this.flags=0,this.size=4+12*this.first_chunk.length,this.writeHeader(t),t.writeUint32(this.first_chunk.length),e=0;e<this.first_chunk.length;e++)t.writeUint32(this.first_chunk[e]),t.writeUint32(this.samples_per_chunk[e]),t.writeUint32(this.sample_description_index[e])},o.stsdBox.prototype.write=function(t){var e;
1for(this.version=0,this.flags=0,this.size=0,this.writeHeader(t),t.writeUint32(this.entries.length),this.size+=4,e=0;e<this.entries.length;e++)this.entries[e].write(t),this.size+=this.entries[e].size;i.debug("BoxWriter","Adjusting box "+this.type+" with new size "+this.size),t.adjustUint32(this.sizePosition,this.size)},o.stshBox.prototype.write=function(t){var e;for(this.version=0,this.flags=0,this.size=4+8*this.shadowed_sample_numbers.length,this.writeHeader(t),t.writeUint32(this.shadowed_sample_numbers.length),e=0;e<this.shadowed_sample_numbers.length;e++)t.writeUint32(this.shadowed_sample_numbers[e]),t.writeUint32(this.sync_sample_numbers[e])},o.stssBox.prototype.write=function(t){this.version=0,this.flags=0,this.size=4+4*this.sample_numbers.length,this.writeHeader(t),t.writeUint32(this.sample_numbers.length),t.writeUint32Array(this.sample_numbers)},o.stszBox.prototype.write=function(t){var e,i=!0;if(this.version=0,this.flags=0,this.sample_sizes.length>0)for(e=0;e+1<this.sample_sizes.length;)if(this.sample_sizes[e+1]!==this.sample_sizes[0]){i=!1;break}else e++;else i=!1;this.size=8,i||(this.size+=4*this.sample_sizes.length),this.writeHeader(t),i?t.writeUint32(this.sample_sizes[0]):t.writeUint32(0),t.writeUint32(this.sample_sizes.length),i||t.writeUint32Array(this.sample_sizes)},o.sttsBox.prototype.write=function(t){var e;for(this.version=0,this.flags=0,this.size=4+8*this.sample_counts.length,this.writeHeader(t),t.writeUint32(this.sample_counts.length),e=0;e<this.sample_counts.length;e++)t.writeUint32(this.sample_counts[e]),t.writeUint32(this.sample_deltas[e])},o.tfdtBox.prototype.write=function(t){this.version=+(this.baseMediaDecodeTime>0xffffffff),this.flags=0,this.size=4,1===this.version&&(this.size+=4),this.writeHeader(t),1===this.version?t.writeUint64(this.baseMediaDecodeTime):t.writeUint32(this.baseMediaDecodeTime)},o.tfhdBox.prototype.write=function(t){this.version=0,this.size=4,this.flags&o.TFHD_FLAG_BASE_DATA_OFFSET&&(this.size+=8),this.flags&o.TFHD_FLAG_SAMPLE_DESC&&(this.size+=4),this.flags&o.TFHD_FLAG_SAMPLE_DUR&&(this.size+=4),this.flags&o.TFHD_FLAG_SAMPLE_SIZE&&(this.size+=4),this.flags&o.TFHD_FLAG_SAMPLE_FLAGS&&(this.size+=4),this.writeHeader(t),t.writeUint32(this.track_id),this.flags&o.TFHD_FLAG_BASE_DATA_OFFSET&&t.writeUint64(this.base_data_offset),this.flags&o.TFHD_FLAG_SAMPLE_DESC&&t.writeUint32(this.default_sample_description_index),this.flags&o.TFHD_FLAG_SAMPLE_DUR&&t.writeUint32(this.default_sample_duration),this.flags&o.TFHD_FLAG_SAMPLE_SIZE&&t.writeUint32(this.default_sample_size),this.flags&o.TFHD_FLAG_SAMPLE_FLAGS&&t.writeUint32(this.default_sample_flags)},o.tkhdBox.prototype.write=function(t){this.version=0,this.size=80,this.writeHeader(t),t.writeUint32(this.creation_time),t.writeUint32(this.modification_time),t.writeUint32(this.track_id),t.writeUint32(0),t.writeUint32(this.duration),t.writeUint32(0),t.writeUint32(0),t.writeInt16(this.layer),t.writeInt16(this.alternate_group),t.writeInt16(this.volume<<8),t.writeUint16(0),t.writeInt32Array(this.matrix),t.writeUint32(this.width),t.writeUint32(this.height)},o.trexBox.prototype.write=function(t){this.version=0,this.flags=0,this.size=20,this.writeHeader(t),t.writeUint32(this.track_id),t.writeUint32(this.default_sample_description_index),t.writeUint32(this.default_sample_duration),t.writeUint32(this.default_sample_size),t.writeUint32(this.default_sample_flags)},o.trunBox.prototype.write=function(t){this.version=0,this.size=4,this.flags&o.TRUN_FLAGS_DATA_OFFSET&&(this.size+=4),this.flags&o.TRUN_FLAGS_FIRST_FLAG&&(this.size+=4),this.flags&o.TRUN_FLAGS_DURATION&&(this.size+=4*this.sample_duration.length),this.flags&o.TRUN_FLAGS_SIZE&&(this.size+=4*this.sample_size.length),this.flags&o.TRUN_FLAGS_FLAGS&&(this.size+=4*this.sample_flags.length),this.flags&o.TRUN_FLAGS_CTS_OFFSET&&(this.size+=4*this.sample_composition_time_offset.length),this.writeHeader(t),t.writeUint32(this.sample_count),this.flags&o.TRUN_FLAGS_DATA_OFFSET&&(this.data_offset_position=t.getPosition(),t.writeInt32(this.data_offset)),this.flags&o.TRUN_FLAGS_FIRST_FLAG&&t.writeUint32(this.first_sample_flags);for(var e=0;e<this.sample_count;e++)this.flags&o.TRUN_FLAGS_DURATION&&t.writeUint32(this.sample_duration[e]),this.flags&o.TRUN_FLAGS_SIZE&&t.writeUint32(this.sample_size[e]),this.flags&o.TRUN_FLAGS_FLAGS&&t.writeUint32(this.sample_flags[e]),this.flags&o.TRUN_FLAGS_CTS_OFFSET&&(0===this.version?t.writeUint32(this.sample_composition_time_offset[e]):t.writeInt32(this.sample_composition_time_offset[e]))},o["url Box"].prototype.write=function(t){this.version=0,this.location?(this.flags=0,this.size=this.location.length+1):(this.flags=1,this.size=0),this.writeHeader(t),this.location&&t.writeCString(this.location)},o["urn Box"].prototype.write=function(t){this.version=0,this.flags=0,this.size=this.name.length+1+(this.location?this.location.length+1:0),this.writeHeader(t),t.writeCString(this.name),this.location&&t.writeCString(this.location)},o.vmhdBox.prototype.write=function(t){this.version=0,this.flags=1,this.size=8,this.writeHeader(t),t.writeUint16(this.graphicsmode),t.writeUint16Array(this.opcolor)},o.cttsBox.prototype.unpack=function(t){var e,i,s;for(e=0,s=0;e<this.sample_counts.length;e++)for(i=0;i<this.sample_counts[e];i++)t[s].pts=t[s].dts+this.sample_offsets[e],s++},o.sttsBox.prototype.unpack=function(t){var e,i,s;for(e=0,s=0;e<this.sample_counts.length;e++)for(i=0;i<this.sample_counts[e];i++)0===s?t[s].dts=0:t[s].dts=t[s-1].dts+this.sample_deltas[e],s++},o.stcoBox.prototype.unpack=function(t){var e;
1for(e=0;e<this.chunk_offsets.length;e++)t[e].offset=this.chunk_offsets[e]},o.stscBox.prototype.unpack=function(t){var e,i,s,r,n;for(e=0,r=0,n=0;e<this.first_chunk.length;e++)for(i=0;i<(e+1<this.first_chunk.length?this.first_chunk[e+1]:1/0);i++)for(n++,s=0;s<this.samples_per_chunk[e];s++){if(!t[r])return;t[r].description_index=this.sample_description_index[e],t[r].chunk_index=n,r++}},o.stszBox.prototype.unpack=function(t){var e;for(e=0;e<this.sample_sizes.length;e++)t[e].size=this.sample_sizes[e]},o.DIFF_BOXES_PROP_NAMES=["boxes","entries","references","subsamples","items","item_infos","extents","associations","subsegments","ranges","seekLists","seekPoints","esd","levels"],o.DIFF_PRIMITIVE_ARRAY_PROP_NAMES=["compatible_brands","matrix","opcolor","sample_counts","sample_counts","sample_deltas","first_chunk","samples_per_chunk","sample_sizes","chunk_offsets","sample_offsets","sample_description_index","sample_duration"],o.boxEqualFields=function(t,e){var i;if(t&&!e)return!1;for(i in t)if(o.DIFF_BOXES_PROP_NAMES.indexOf(i)>-1)continue;else if(t[i]instanceof o.Box||e[i]instanceof o.Box)continue;else if(void 0===t[i]||void 0===e[i])continue;else if("function"==typeof t[i]||"function"==typeof e[i])continue;else if(t.subBoxNames&&t.subBoxNames.indexOf(i.slice(0,4))>-1||e.subBoxNames&&e.subBoxNames.indexOf(i.slice(0,4))>-1)continue;else if("data"===i||"start"===i||"size"===i||"creation_time"===i||"modification_time"===i)continue;else if(o.DIFF_PRIMITIVE_ARRAY_PROP_NAMES.indexOf(i)>-1)continue;else if(t[i]!==e[i])return!1;return!0},o.boxEqual=function(t,e){if(!o.boxEqualFields(t,e))return!1;for(var i=0;i<o.DIFF_BOXES_PROP_NAMES.length;i++){var s=o.DIFF_BOXES_PROP_NAMES[i];if(t[s]&&e[s]&&!o.boxEqual(t[s],e[s]))return!1}return!0};var h=function(){};h.prototype.parseSample=function(t){var e,i,r=new s(t.buffer);for(e=[];!r.isEos();)(i=o.parseOneBox(r,!1)).code===o.OK&&"vttc"===i.box.type&&e.push(i.box);return e},h.prototype.getText=function(t,e,i){function s(t,e,i){return i=i||"0",(t+="").length>=e?t:Array(e-t.length+1).join(i)+t}function r(t){var e=Math.floor(t/3600),i=Math.floor((t-3600*e)/60),r=Math.floor(t-3600*e-60*i),n=Math.floor((t-3600*e-60*i-r)*1e3);return""+s(e,2)+":"+s(i,2)+":"+s(r,2)+"."+s(n,3)}for(var n=this.parseSample(i),a="",o=0;o<n.length;o++){var h=n[o];a+=r(t)+" --\x3e "+r(e)+`\r 2`,a+=h.payl.text}return a};(function(){}).prototype.parseSample=function(t){var e,i={};i.resources=[];var r=new s(t.data.buffer);if(t.subsamples&&0!==t.subsamples.length){if(i.documentString=r.readString(t.subsamples[0].size),t.subsamples.length>1)for(e=1;e<t.subsamples.length;e++)i.resources[e]=r.readUint8Array(t.subsamples[e].size)}else i.documentString=r.readString(t.data.length);return"u">typeof DOMParser&&(i.document=new DOMParser().parseFromString(i.documentString,"application/xml")),i};var d=function(){};d.prototype.parseSample=function(t){return new s(t.data.buffer).readString(t.data.length)},d.prototype.parseConfig=function(t){var e=new s(t.buffer);return e.readUint32(),e.readCString()};var l=function(t){this.stream=t||new n,this.boxes=[],this.mdats=[],this.moofs=[],this.isProgressive=!1,this.moovStartFound=!1,this.onMoovStart=null,this.moovStartSent=!1,this.onReady=null,this.readySent=!1,this.onSegment=null,this.onSamples=null,this.onError=null,this.sampleListBuilt=!1,this.fragmentedTracks=[],this.extractedTracks=[],this.isFragmentationInitialized=!1,this.sampleProcessingStarted=!1,this.nextMoofNumber=0,this.itemListBuilt=!1,this.onSidx=null,this.sidxSent=!1};l.prototype.setSegmentOptions=function(t,e,i){var s=this.getTrackById(t);if(s){var r={};this.fragmentedTracks.push(r),r.id=t,r.user=e,r.trak=s,s.nextSample=0,r.segmentStream=null,r.nb_samples=1e3,r.rapAlignement=!0,i&&(i.nbSamples&&(r.nb_samples=i.nbSamples),i.rapAlignement&&(r.rapAlignement=i.rapAlignement))}},l.prototype.unsetSegmentOptions=function(t){for(var e=-1,i=0;i<this.fragmentedTracks.length;i++)this.fragmentedTracks[i].id==t&&(e=i);e>-1&&this.fragmentedTracks.splice(e,1)},l.prototype.setExtractionOptions=function(t,e,i){var s=this.getTrackById(t);if(s){var r={};this.extractedTracks.push(r),r.id=t,r.user=e,r.trak=s,s.nextSample=0,r.nb_samples=1e3,r.samples=[],i&&i.nbSamples&&(r.nb_samples=i.nbSamples)}},l.prototype.unsetExtractionOptions=function(t){for(var e=-1,i=0;i<this.extractedTracks.length;i++)this.extractedTracks[i].id==t&&(e=i);e>-1&&this.extractedTracks.splice(e,1)},l.prototype.parse=function(){var t,e,s;if(!this.restoreParsePosition||this.restoreParsePosition())for(;;)if(this.hasIncompleteMdat&&this.hasIncompleteMdat())if(this.processIncompleteMdat())continue;else return;else{if(this.saveParsePosition&&this.saveParsePosition(),(t=o.parseOneBox(this.stream,!1)).code===o.ERR_NOT_ENOUGH_DATA)if(!this.processIncompleteBox)return;else if(this.processIncompleteBox(t))continue;else return;switch(s="uuid"!==(e=t.box).type?e.type:e.uuid,this.boxes.push(e),s){case"mdat":this.mdats.push(e);break;case"moof":this.moofs.push(e);break;case"moov":this.moovStartFound=!0,0===this.mdats.length&&(this.isProgressive=!0);default:void 0!==this[s]&&i.warn("ISOFile","Duplicate Box of type: "+s+", overriding previous occurrence"),this[s]=e}this.updateUsedBytes&&this.updateUsedBytes(e,t)}},l.prototype.checkBuffer=function(t){if(null==t)throw"Buffer must be defined and non empty";if(void 0===t.fileStart)throw"Buffer must have a fileStart property";return 0===t.byteLength?(i.warn("ISOFile","Ignoring empty buffer (fileStart: "+t.fileStart+")"),this.stream.logBufferLevel(),!1):(i.info("ISOFile","Processing buffer (fileStart: "+t.fileStart+")"),t.usedBytes=0,this.stream.insertBuffer(t),this.stream.logBufferLevel(),!!this.stream.initialized()||(i.warn("ISOFile","Not ready to start parsing"),!1))},l.prototype.appendBuffer=function(t,e){var s;if(this.checkBuffer(t))return this.parse(),this.moovStartFound&&!this.moovStartSent&&(this.moovStartSent=!0,this.onMoovStart&&this.onMoovStart()),this.moov?(this.sampleListBuilt||(this.buildSampleLists(),this.sampleListBuilt=!0),this.updateSampleLists(),this.onReady&&!this.readySe
2nt&&(this.readySent=!0,this.onReady(this.getInfo())),this.processSamples(e),this.nextSeekPosition?(s=this.nextSeekPosition,this.nextSeekPosition=void 0):s=this.nextParsePosition,this.stream.getEndFilePositionAfter&&(s=this.stream.getEndFilePositionAfter(s))):s=this.nextParsePosition?this.nextParsePosition:0,this.sidx&&this.onSidx&&!this.sidxSent&&(this.onSidx(this.sidx),this.sidxSent=!0),this.meta&&(this.flattenItemInfo&&!this.itemListBuilt&&(this.flattenItemInfo(),this.itemListBuilt=!0),this.processItems&&this.processItems(this.onItem)),this.stream.cleanBuffers&&(i.info("ISOFile","Done processing buffer (fileStart: "+t.fileStart+") - next buffer to fetch should have a fileStart position of "+s),this.stream.logBufferLevel(),this.stream.cleanBuffers(),this.stream.logBufferLevel(!0),i.info("ISOFile","Sample data size in memory: "+this.getAllocatedSampleDataSize())),s},l.prototype.getInfo=function(){var t,e,i,s,r,n={},a=new Date("1904-01-01T00:00:00Z").getTime();if(this.moov)for(n.hasMoov=!0,n.duration=this.moov.mvhd.duration,n.timescale=this.moov.mvhd.timescale,n.isFragmented=null!=this.moov.mvex,n.isFragmented&&this.moov.mvex.mehd&&(n.fragment_duration=this.moov.mvex.mehd.fragment_duration),n.isProgressive=this.isProgressive,n.hasIOD=null!=this.moov.iods,n.brands=[],n.brands.push(this.ftyp.major_brand),n.brands=n.brands.concat(this.ftyp.compatible_brands),n.created=new Date(a+1e3*this.moov.mvhd.creation_time),n.modified=new Date(a+1e3*this.moov.mvhd.modification_time),n.tracks=[],n.audioTracks=[],n.videoTracks=[],n.subtitleTracks=[],n.metadataTracks=[],n.hintTracks=[],n.otherTracks=[],t=0;t<this.moov.traks.length;t++){if(r=(i=this.moov.traks[t]).mdia.minf.stbl.stsd.entries[0],s={},n.tracks.push(s),s.id=i.tkhd.track_id,s.name=i.mdia.hdlr.name,s.references=[],i.tref)for(e=0;e<i.tref.boxes.length;e++)ref={},s.references.push(ref),ref.type=i.tref.boxes[e].type,ref.track_ids=i.tref.boxes[e].track_ids;i.edts&&(s.edits=i.edts.elst.entries),s.created=new Date(a+1e3*i.tkhd.creation_time),s.modified=new Date(a+1e3*i.tkhd.modification_time),s.movie_duration=i.tkhd.duration,s.movie_timescale=n.timescale,s.layer=i.tkhd.layer,s.alternate_group=i.tkhd.alternate_group,s.volume=i.tkhd.volume,s.matrix=i.tkhd.matrix,s.track_width=i.tkhd.width/65536,s.track_height=i.tkhd.height/65536,s.timescale=i.mdia.mdhd.timescale,s.cts_shift=i.mdia.minf.stbl.cslg,s.duration=i.mdia.mdhd.duration,s.samples_duration=i.samples_duration,s.codec=r.getCodec(),s.kind=i.udta&&i.udta.kinds.length?i.udta.kinds[0]:{schemeURI:"",value:""},s.language=i.mdia.elng?i.mdia.elng.extended_language:i.mdia.mdhd.languageString,s.nb_samples=i.samples.length,s.size=i.samples_size,s.bitrate=8*s.size*s.timescale/s.samples_duration,r.isAudio()?(s.type="audio",n.audioTracks.push(s),s.audio={},s.audio.sample_rate=r.getSampleRate(),s.audio.channel_count=r.getChannelCount(),s.audio.sample_size=r.getSampleSize()):r.isVideo()?(s.type="video",n.videoTracks.push(s),s.video={},s.video.width=r.getWidth(),s.video.height=r.getHeight()):r.isSubtitle()?(s.type="subtitles",n.subtitleTracks.push(s)):r.isHint()?(s.type="metadata",n.hintTracks.push(s)):r.isMetadata()?(s.type="metadata",n.metadataTracks.push(s)):(s.type="metadata",n.otherTracks.push(s))}else n.hasMoov=!1;if(n.mime="",n.hasMoov&&n.tracks){for(n.videoTracks&&n.videoTracks.length>0?n.mime+='video/mp4; codecs="':n.audioTracks&&n.audioTracks.length>0?n.mime+='audio/mp4; codecs="':n.mime+='application/mp4; codecs="',t=0;t<n.tracks.length;t++)0!==t&&(n.mime+=","),n.mime+=n.tracks[t].codec;n.mime+='"; profiles="',n.mime+=this.ftyp.compatible_brands.join(),n.mime+='"'}return n},l.prototype.processSamples=function(t){if(this.sampleProcessingStarted){if(this.isFragmentationInitialized&&null!==this.onSegment)for(e=0;e<this.fragmentedTracks.length;e++){var e,s,r=this.fragmentedTracks[e];for(s=r.trak;s.nextSample<s.samples.length&&this.sampleProcessingStarted;){i.debug("ISOFile","Creating media fragment on track #"+r.id+" for sample "+s.nextSample);var n=this.createFragment(r.id,s.nextSample,r.segmentStream);if(n)r.segmentStream=n,s.nextSample++;else break;if((s.nextSample%r.nb_samples==0||t||s.nextSample>=s.samples.length)&&(i.info("ISOFile","Sending fragmented data on track #"+r.id+" for samples ["+Math.max(0,s.nextSample-r.nb_samples)+","+(s.nextSample-1)+"]"),i.info("ISOFile","Sample data size in memory: "+this.getAllocatedSampleDataSize()),this.onSegment&&this.onSegment(r.id,r.user,r.segmentStream.buffer,s.nextSample,t||s.nextSample>=s.samples.length),r.segmentStream=null,r!==this.fragmentedTracks[e]))break}}if(null!==this.onSamples)for(e=0;e<this.extractedTracks.length;e++){var a=this.extractedTracks[e];for(s=a.trak;s.nextSample<s.samples.length&&this.sampleProcessingStarted;){i.debug("ISOFile","Exporting on track #"+a.id+" sample #"+s.nextSample);var o=this.getSample(s,s.nextSample);if(o)s.nextSample++,a.samples.push(o);else break;if((s.nextSample%a.nb_samples==0||s.nextSample>=s.samples.length)&&(i.debug("ISOFile","Sending samples on track #"+a.id+" for sample "+s.nextSample),this.onSamples&&this.onSamples(a.id,a.user,a.samples),a.samples=[],a!==this.extractedTracks[e]))break}}}},l.prototype.getBox=function(t){var e=this.getBoxes(t,!0);return e.length?e[0]:null},l.prototype.getBoxes=function(t,e){var i=[];return l._sweep.call(this,t,i,e),i}
2,l._sweep=function(t,e,i){for(var s in this.type&&this.type==t&&e.push(this),this.boxes){if(e.length&&i)return;l._sweep.call(this.boxes[s],t,e,i)}},l.prototype.getTrackSamplesInfo=function(t){var e=this.getTrackById(t);return e?e.samples:void 0},l.prototype.getTrackSample=function(t,e){var i=this.getTrackById(t);return this.getSample(i,e)},l.prototype.releaseUsedSamples=function(t,e){var s=0,r=this.getTrackById(t);r.lastValidSample||(r.lastValidSample=0);for(var n=r.lastValidSample;n<e;n++)s+=this.releaseSample(r,n);i.info("ISOFile","Track #"+t+" released samples up to "+e+" (released size: "+s+", remaining: "+this.samplesDataSize+")"),r.lastValidSample=e},l.prototype.start=function(){this.sampleProcessingStarted=!0,this.processSamples(!1)},l.prototype.stop=function(){this.sampleProcessingStarted=!1},l.prototype.flush=function(){i.info("ISOFile","Flushing remaining samples"),this.updateSampleLists(),this.processSamples(!0),this.stream.cleanBuffers(),this.stream.logBufferLevel(!0)},l.prototype.seekTrack=function(t,e,s){var r,n,a,o=1/0,h=0,d=0;if(0===s.samples.length)return i.info("ISOFile","No sample in track, cannot seek! Using time "+i.getDurationString(0,1)+" and offset: 0"),{offset:0,time:0};for(r=0;r<s.samples.length;r++){if(n=s.samples[r],0===r)d=0,a=n.timescale;else if(n.cts>t*n.timescale){d=r-1;break}e&&n.is_sync&&(h=r)}for(e&&(d=h),t=s.samples[d].cts,s.nextSample=d;s.samples[d].alreadyRead===s.samples[d].size&&s.samples[d+1];)d++;return o=s.samples[d].offset+s.samples[d].alreadyRead,i.info("ISOFile","Seeking to "+(e?"RAP":"")+" sample #"+s.nextSample+" on track "+s.tkhd.track_id+", time "+i.getDurationString(t,a)+" and offset: "+o),{offset:o,time:t/a}},l.prototype.seek=function(t,e){var s,r,n,a=this.moov,o={offset:1/0,time:1/0};if(this.moov){for(n=0;n<a.traks.length;n++)s=a.traks[n],(r=this.seekTrack(t,e,s)).offset<o.offset&&(o.offset=r.offset),r.time<o.time&&(o.time=r.time);return i.info("ISOFile","Seeking at time "+i.getDurationString(o.time,1)+" needs a buffer with a fileStart position of "+o.offset),1/0===o.offset?o={offset:this.nextParsePosition,time:0}:o.offset=this.stream.getEndFilePositionAfter(o.offset),i.info("ISOFile","Adjusted seek position (after checking data already in buffer): "+o.offset),o}throw"Cannot seek: moov not received!"},l.prototype.equal=function(t){for(var e=0;e<this.boxes.length&&e<t.boxes.length;){var i=this.boxes[e],s=t.boxes[e];if(!o.boxEqual(i,s))return!1;e++}return!0},l.prototype.lastBoxStartPosition=0,l.prototype.parsingMdat=null,l.prototype.nextParsePosition=0,l.prototype.discardMdatData=!1,l.prototype.processIncompleteBox=function(t){var e;return"mdat"===t.type?(e=new o[t.type+"Box"](t.size),this.parsingMdat=e,this.boxes.push(e),this.mdats.push(e),e.start=t.start,e.hdr_size=t.hdr_size,this.stream.addUsedBytes(e.hdr_size),this.lastBoxStartPosition=e.start+e.size,this.stream.seek(e.start+e.size,!1,this.discardMdatData))?(this.parsingMdat=null,!0):(this.moovStartFound?this.nextParsePosition=this.stream.findEndContiguousBuf():this.nextParsePosition=e.start+e.size,!1):("moov"===t.type&&(this.moovStartFound=!0,0===this.mdats.length&&(this.isProgressive=!0)),this.stream.mergeNextBuffer&&this.stream.mergeNextBuffer())?(this.nextParsePosition=this.stream.getEndPosition(),!0):(t.type?this.moovStartFound?this.nextParsePosition=this.stream.getEndPosition():this.nextParsePosition=this.stream.getPosition()+t.size:this.nextParsePosition=this.stream.getEndPosition(),!1)},l.prototype.hasIncompleteMdat=function(){return null!==this.parsingMdat},l.prototype.processIncompleteMdat=function(){var t;return(t=this.parsingMdat,this.stream.seek(t.start+t.size,!1,this.discardMdatData))?(i.debug("ISOFile","Found 'mdat' end in buffered data"),this.parsingMdat=null,!0):(this.nextParsePosition=this.stream.findEndContiguousBuf(),!1)},l.prototype.restoreParsePosition=function(){return this.stream.seek(this.lastBoxStartPosition,!0,this.discardMdatData)},l.prototype.saveParsePosition=function(){this.lastBoxStartPosition=this.stream.getPosition()},l.prototype.updateUsedBytes=function(t,e){this.stream.addUsedBytes&&("mdat"===t.type?(this.stream.addUsedBytes(t.hdr_size),this.discardMdatData&&this.stream.addUsedBytes(t.size-t.hdr_size)):this.stream.addUsedBytes(t.size))},l.prototype.add=o.Box.prototype.add,l.prototype.addBox=o.Box.prototype.addBox,l.prototype.init=function(t){var e=t||{};this.add("ftyp").set("major_brand",e.brands&&e.brands[0]||"iso4").set("minor_version",0).set("compatible_brands",e.brands||["iso4"]);var i=this.add("moov");return i.add("mvhd").set("timescale",e.timescale||600).set("rate",e.rate||65536).set("creation_time",0).set("modification_time",0).set("duration",e.duration||0).set("volume",256*!e.width).set("matrix",[65536,0,0,0,65536,0,0,0,0x40000000]).set("next_track_id",1),i.add("mvex"),this},l.prototype.addTrack=function(t){this.moov||this.init(t);var e=t||{};e.width=e.width||320,e.height=e.height||320,e.id=e.id||this.moov.mvhd.next_track_id,e.type=e.type||"avc1";var i=this.moov.add("trak");this.moov.mvhd.next_track_id=e.id+1,i.add("tkhd").set("flags",o.TKHD_FLAG_ENABLED|o.TKHD_FLAG_IN_MOVIE|o.TKHD_FLAG_IN_PREVIEW).set("creation_time",0).set("modification_time",0).set("track_id",e.id).set("duration",e.duration||0).set("layer",e.layer||0).set("alternate_group",0).set("volume",1).set("matrix",[0,0,0,0,0,0,0,0,0]).set("width",e.width).set("height",e.height);var r=i.add("mdia");r.add("mdhd").set("creation_time",0).set("modification_time",0).set("timescale",e.timescale||1).set("duration",e.media_duration||0).set("language",e.language||"und"),r.add("hdlr").set("handler",e.hdlr||"vide").set("name",e.name||"Track created with MP4Box.js"),r.add("elng").set("extended_language",e.language||"fr-FR");var n=r.add("minf");if(void 0!==o[e.type+"SampleEntry"]){var a=new o[e.type+"SampleEntry"];a.data_reference_index=1;var h="";for(var d in o.sampleEntryCodes)for(var l=o.sampleEntryCodes[d],p=0;p<l.length;p++)if(l.indexOf(e.type)>-1){h=d;break}switch(h){case"Visual":if(n.add("vmhd").set("graphicsmode",0).set("opcolor",[0,0,0]),a.set("width",e.width).set("height",e.height).set("horizresolution",4718592).set("vertresolution",4718592).set("frame_count",1).set("compressorname",e.type+" Compressor").set("depth",24),e.avcDecoderConfigRecord){var f=new o.avcCBox,u=new s(e.avcDecoderConfigRecord);f.parse(u),a.addBox(f)}break;case"Audio":n.add("smhd").set("balance",e.balance||0),a.set("channel_c
2ount",e.channel_count||2).set("samplesize",e.samplesize||16).set("samplerate",e.samplerate||65536);break;case"Hint":n.add("hmhd");break;case"Subtitle":n.add("sthd"),"stpp"===e.type&&a.set("namespace",e.namespace||"nonamespace").set("schema_location",e.schema_location||"").set("auxiliary_mime_types",e.auxiliary_mime_types||"");break;default:n.add("nmhd")}e.description&&a.addBox(e.description),e.description_boxes&&e.description_boxes.forEach(function(t){a.addBox(t)}),n.add("dinf").add("dref").addEntry(new o["url Box"]().set("flags",1));var c=n.add("stbl");return c.add("stsd").addEntry(a),c.add("stts").set("sample_counts",[]).set("sample_deltas",[]),c.add("stsc").set("first_chunk",[]).set("samples_per_chunk",[]).set("sample_description_index",[]),c.add("stco").set("chunk_offsets",[]),c.add("stsz").set("sample_sizes",[]),this.moov.mvex.add("trex").set("track_id",e.id).set("default_sample_description_index",e.default_sample_description_index||1).set("default_sample_duration",e.default_sample_duration||0).set("default_sample_size",e.default_sample_size||0).set("default_sample_flags",e.default_sample_flags||0),this.buildTrakSampleLists(i),e.id}},o.Box.prototype.computeSize=function(t){var e=t||new r;e.endianness=r.BIG_ENDIAN,this.write(e)},l.prototype.addSample=function(t,e,i){var s=i||{},r={},n=this.getTrackById(t);if(null!==n){r.number=n.samples.length,r.track_id=n.tkhd.track_id,r.timescale=n.mdia.mdhd.timescale,r.description_index=s.sample_description_index?s.sample_description_index-1:0,r.description=n.mdia.minf.stbl.stsd.entries[r.description_index],r.data=e,r.size=e.byteLength,r.alreadyRead=r.size,r.duration=s.duration||1,r.cts=s.cts||0,r.dts=s.dts||0,r.is_sync=s.is_sync||!1,r.is_leading=s.is_leading||0,r.depends_on=s.depends_on||0,r.is_depended_on=s.is_depended_on||0,r.has_redundancy=s.has_redundancy||0,r.degradation_priority=s.degradation_priority||0,r.offset=0,r.subsamples=s.subsamples,n.samples.push(r),n.samples_size+=r.size,n.samples_duration+=r.duration,n.first_dts||(n.first_dts=s.dts),this.processSamples();var a=this.createSingleSampleMoof(r);return this.addBox(a),a.computeSize(),a.trafs[0].truns[0].data_offset=a.size+8,this.add("mdat").data=new Uint8Array(e),r}},l.prototype.createSingleSampleMoof=function(t){var e=0;e=t.is_sync?0x2000000:65536;var i=new o.moofBox;i.add("mfhd").set("sequence_number",this.nextMoofNumber),this.nextMoofNumber++;var s=i.add("traf"),r=this.getTrackById(t.track_id);return s.add("tfhd").set("track_id",t.track_id).set("flags",o.TFHD_FLAG_DEFAULT_BASE_IS_MOOF),s.add("tfdt").set("baseMediaDecodeTime",t.dts-r.first_dts),s.add("trun").set("flags",o.TRUN_FLAGS_DATA_OFFSET|o.TRUN_FLAGS_DURATION|o.TRUN_FLAGS_SIZE|o.TRUN_FLAGS_FLAGS|o.TRUN_FLAGS_CTS_OFFSET).set("data_offset",0).set("first_sample_flags",0).set("sample_count",1).set("sample_duration",[t.duration]).set("sample_size",[t.size]).set("sample_flags",[e]).set("sample_composition_time_offset",[t.cts-t.dts]),i},l.prototype.lastMoofIndex=0,l.prototype.samplesDataSize=0,l.prototype.resetTables=function(){for(this.initial_duration=this.moov.mvhd.duration,this.moov.mvhd.duration=0,t=0;t<this.moov.traks.length;t++){(e=this.moov.traks[t]).tkhd.duration=0,e.mdia.mdhd.duration=0,(e.mdia.minf.stbl.stco||e.mdia.minf.stbl.co64).chunk_offsets=[],(i=e.mdia.minf.stbl.stsc).first_chunk=[],i.samples_per_chunk=[],i.sample_description_index=[],(e.mdia.minf.stbl.stsz||e.mdia.minf.stbl.stz2).sample_sizes=[],(s=e.mdia.minf.stbl.stts).sample_counts=[],s.sample_deltas=[],(r=e.mdia.minf.stbl.ctts)&&(r.sample_counts=[],r.sample_offsets=[]);var t,e,i,s,r,n=e.mdia.minf.stbl.stss,a=e.mdia.minf.stbl.boxes.indexOf(n);-1!=a&&(e.mdia.minf.stbl.boxes[a]=null)}},l.initSampleGroups=function(t,e,i,s,r){var n,a,o,h;function d(t,e,i){this.grouping_type=t,this.grouping_type_parameter=e,this.sbgp=i,this.last_sample_in_run=-1,this.entry_index=-1}for(e&&(e.sample_groups_info=[]),t.sample_groups_info||(t.sample_groups_info=[]),a=0;a<i.length;a++){for(h=i[a].grouping_type+"/"+i[a].grouping_type_parameter,o=new d(i[a].grouping_type,i[a].grouping_type_parameter,i[a]),e&&(e.sample_groups_info[h]=o),t.sample_groups_info[h]||(t.sample_groups_info[h]=o),n=0;n<s.length;n++)s[n].grouping_type===i[a].grouping_type&&(o.description=s[n],o.description.used=!0);if(r)for(n=0;n<r.length;n++)r[n].grouping_type===i[a].grouping_type&&(o.fragment_description=r[n],o.fragment_description.used=!0,o.is_fragment=!0)}if(e){if(r)for(a=0;a<r.length;a++)!r[a].used&&r[a].version>=2&&(h=r[a].grouping_type+"/0",(o=new d(r[a].grouping_type,0)).is_fragment=!0,e.sample_groups_info[h]||(e.sample_groups_info[h]=o))}else for(a=0;a<s.length;a++)!s[a].used&&s[a].version>=2&&(h=s[a].grouping_type+"/0",o=new d(s[a].grouping_type,0),t.sample_groups_info[h]||(t.sample_groups_info[h]=o))}
2,l.setSampleGroupProperties=function(t,e,i,s){var r,n,a;for(r in e.sample_groups=[],s)e.sample_groups[r]={},e.sample_groups[r].grouping_type=s[r].grouping_type,e.sample_groups[r].grouping_type_parameter=s[r].grouping_type_parameter,i>=s[r].last_sample_in_run&&(s[r].last_sample_in_run<0&&(s[r].last_sample_in_run=0),s[r].entry_index++,s[r].entry_index<=s[r].sbgp.entries.length-1&&(s[r].last_sample_in_run+=s[r].sbgp.entries[s[r].entry_index].sample_count)),s[r].entry_index<=s[r].sbgp.entries.length-1?e.sample_groups[r].group_description_index=s[r].sbgp.entries[s[r].entry_index].group_description_index:e.sample_groups[r].group_description_index=-1,0!==e.sample_groups[r].group_description_index&&(a=s[r].fragment_description?s[r].fragment_description:s[r].description,e.sample_groups[r].group_description_index>0?(n=e.sample_groups[r].group_description_index>65535?(e.sample_groups[r].group_description_index>>16)-1:e.sample_groups[r].group_description_index-1,a&&n>=0&&(e.sample_groups[r].description=a.entries[n])):a&&a.version>=2&&a.default_group_description_index>0&&(e.sample_groups[r].description=a.entries[a.default_group_description_index-1]))},l.process_sdtp=function(t,e,i){e&&(t?(e.is_leading=t.is_leading[i],e.depends_on=t.sample_depends_on[i],e.is_depended_on=t.sample_is_depended_on[i],e.has_redundancy=t.sample_has_redundancy[i]):(e.is_leading=0,e.depends_on=0,e.is_depended_on=0,e.has_redundancy=0))},l.prototype.buildSampleLists=function(){var t,e;for(t=0;t<this.moov.traks.length;t++)e=this.moov.traks[t],this.buildTrakSampleLists(e)},l.prototype.buildTrakSampleLists=function(t){if(t.samples=[],t.samples_duration=0,t.samples_size=0,i=t.mdia.minf.stbl.stco||t.mdia.minf.stbl.co64,s=t.mdia.minf.stbl.stsc,r=t.mdia.minf.stbl.stsz||t.mdia.minf.stbl.stz2,n=t.mdia.minf.stbl.stts,a=t.mdia.minf.stbl.ctts,o=t.mdia.minf.stbl.stss,h=t.mdia.minf.stbl.stsd,d=t.mdia.minf.stbl.subs,u=t.mdia.minf.stbl.stdp,p=t.mdia.minf.stbl.sbgps,f=t.mdia.minf.stbl.sgpds,b=-1,w=-1,v=-1,x=-1,U=0,S=0,E=0,l.initSampleGroups(t,null,p,f),void 0!==r){for(e=0;e<r.sample_sizes.length;e++){var e,i,s,r,n,a,o,h,d,p,f,u,c,m,_,g,y,b,w,v,x,U,S,E,B={};B.number=e,B.track_id=t.tkhd.track_id,B.timescale=t.mdia.mdhd.timescale,B.alreadyRead=0,t.samples[e]=B,B.size=r.sample_sizes[e],t.samples_size+=B.size,0===e?(c=0,B.chunk_index=m=1,B.chunk_run_index=c,y=s.samples_per_chunk[c],g=0,_=c+1<s.first_chunk.length?s.first_chunk[c+1]-1:1/0):e<y?(B.chunk_index=m,B.chunk_run_index=c):(B.chunk_index=++m,g=0,m<=_||(_=++c+1<s.first_chunk.length?s.first_chunk[c+1]-1:1/0),B.chunk_run_index=c,y+=s.samples_per_chunk[c]),B.description_index=s.sample_description_index[B.chunk_run_index]-1,B.description=h.entries[B.description_index],B.offset=i.chunk_offsets[B.chunk_index-1]+g,g+=B.size,e>b&&(w++,b<0&&(b=0),b+=n.sample_counts[w]),e>0?(t.samples[e-1].duration=n.sample_deltas[w],t.samples_duration+=t.samples[e-1].duration,B.dts=t.samples[e-1].dts+t.samples[e-1].duration):B.dts=0,a?(e>=v&&(x++,v<0&&(v=0),v+=a.sample_counts[x]),B.cts=t.samples[e].dts+a.sample_offsets[x]):B.cts=B.dts,o?(e==o.sample_numbers[U]-1?(B.is_sync=!0,U++):(B.is_sync=!1,B.degradation_priority=0),d&&d.entries[S].sample_delta+E==e+1&&(B.subsamples=d.entries[S].subsamples,E+=d.entries[S].sample_delta,S++)):B.is_sync=!0,l.process_sdtp(t.mdia.minf.stbl.sdtp,B,B.number),u?B.degradation_priority=u.priority[e]:B.degradation_priority=0,d&&d.entries[S].sample_delta+E==e&&(B.subsamples=d.entries[S].subsamples,E+=d.entries[S].sample_delta),(p.length>0||f.length>0)&&l.setSampleGroupProperties(t,B,e,t.sample_groups_info)}e>0&&(t.samples[e-1].duration=Math.max(t.mdia.mdhd.duration-t.samples[e-1].dts,0),t.samples_duration+=t.samples[e-1].duration)}},l.prototype.updateSampleLists=function(){if(void 0!==this.moov){for(;this.lastMoofIndex<this.moofs.length;)if(d=this.moofs[this.lastMoofIndex],this.lastMoofIndex++,"moof"==d.type)for(t=0;t<d.trafs.length;t++){for(p=d.trafs[t],f=this.getTrackById(p.tfhd.track_id),u=this.getTrexById(p.tfhd.track_id),s=p.tfhd.flags&o.TFHD_FLAG_SAMPLE_DESC?p.tfhd.default_sample_description_index:u?u.default_sample_description_index:1,r=p.tfhd.flags&o.TFHD_FLAG_SAMPLE_DUR?p.tfhd.default_sample_duration:u?u.default_sample_duration:0,n=p.tfhd.flags&o.TFHD_FLAG_SAMPLE_SIZE?p.tfhd.default_sample_size:u?u.default_sample_size:0,a=p.tfhd.flags&o.TFHD_FLAG_SAMPLE_FLAGS?p.tfhd.default_sample_flags:u?u.default_sample_flags:0,p.sample_number=0,p.sbgps.length>0&&l.initSampleGroups(f,p,p.sbgps,f.mdia.minf.stbl.sgpds,p.sgpds),e=0;e<p.truns.length;e++){var t,e,i,s,r,n,a,h,d,p,f,u,c,m,_=p.truns[e];for(i=0;i<_.sample_count;i++){(c={}).moof_number=this.lastMoofIndex,c.number_in_traf=p.sample_number,p.sample_number++,c.number=f.samples.length,p.first_sample_index=f.samples.length,f.samples.push(c),c.track_id=f.tkhd.track_id,c.timescale=f.mdia.mdhd.timescale,c.description_index=s-1,
2c.description=f.mdia.minf.stbl.stsd.entries[c.description_index],c.size=n,_.flags&o.TRUN_FLAGS_SIZE&&(c.size=_.sample_size[i]),f.samples_size+=c.size,c.duration=r,_.flags&o.TRUN_FLAGS_DURATION&&(c.duration=_.sample_duration[i]),f.samples_duration+=c.duration,f.first_traf_merged||i>0?c.dts=f.samples[f.samples.length-2].dts+f.samples[f.samples.length-2].duration:(p.tfdt?c.dts=p.tfdt.baseMediaDecodeTime:c.dts=0,f.first_traf_merged=!0),c.cts=c.dts,_.flags&o.TRUN_FLAGS_CTS_OFFSET&&(c.cts=c.dts+_.sample_composition_time_offset[i]),m=a,_.flags&o.TRUN_FLAGS_FLAGS?m=_.sample_flags[i]:0===i&&_.flags&o.TRUN_FLAGS_FIRST_FLAG&&(m=_.first_sample_flags),c.is_sync=!(m>>16&1),c.is_leading=m>>26&3,c.depends_on=m>>24&3,c.is_depended_on=m>>22&3,c.has_redundancy=m>>20&3,c.degradation_priority=65535&m;var g=!!(p.tfhd.flags&o.TFHD_FLAG_BASE_DATA_OFFSET),y=!!(p.tfhd.flags&o.TFHD_FLAG_DEFAULT_BASE_IS_MOOF),b=!!(_.flags&o.TRUN_FLAGS_DATA_OFFSET),w=0;w=g?p.tfhd.base_data_offset:y||0===e?d.start:h,0===e&&0===i?b?c.offset=w+_.data_offset:c.offset=w:c.offset=h,h=c.offset+c.size,(p.sbgps.length>0||p.sgpds.length>0||f.mdia.minf.stbl.sbgps.length>0||f.mdia.minf.stbl.sgpds.length>0)&&l.setSampleGroupProperties(f,c,c.number_in_traf,p.sample_groups_info)}}if(p.subs){f.has_fragment_subsamples=!0;var v=p.first_sample_index;for(e=0;e<p.subs.entries.length;e++)v+=p.subs.entries[e].sample_delta,(c=f.samples[v-1]).subsamples=p.subs.entries[e].subsamples}}}},l.prototype.getSample=function(t,e){var s,n=t.samples[e];if(!this.moov)return null;if(n.data){if(n.alreadyRead==n.size)return n}else n.data=new Uint8Array(n.size),n.alreadyRead=0,this.samplesDataSize+=n.size,i.debug("ISOFile","Allocating sample #"+e+" on track #"+t.tkhd.track_id+" of size "+n.size+" (total: "+this.samplesDataSize+")");for(;;){var a=this.stream.findPosition(!0,n.offset+n.alreadyRead,!1);if(!(a>-1))return null;var o=(s=this.stream.buffers[a]).byteLength-(n.offset+n.alreadyRead-s.fileStart);if(n.size-n.alreadyRead<=o)return i.debug("ISOFile","Getting sample #"+e+" data (alreadyRead: "+n.alreadyRead+" offset: "+(n.offset+n.alreadyRead-s.fileStart)+" read size: "+(n.size-n.alreadyRead)+" full size: "+n.size+")"),r.memcpy(n.data.buffer,n.alreadyRead,s,n.offset+n.alreadyRead-s.fileStart,n.size-n.alreadyRead),s.usedBytes+=n.size-n.alreadyRead,this.stream.logBufferLevel(),n.alreadyRead=n.size,n;if(0===o)return null;i.debug("ISOFile","Getting sample #"+e+" partial data (alreadyRead: "+n.alreadyRead+" offset: "+(n.offset+n.alreadyRead-s.fileStart)+" read size: "+o+" full size: "+n.size+")"),r.memcpy(n.data.buffer,n.alreadyRead,s,n.offset+n.alreadyRead-s.fileStart,o),n.alreadyRead+=o,s.usedBytes+=o,this.stream.logBufferLevel()}},l.prototype.releaseSample=function(t,e){var i=t.samples[e];return i.data?(this.samplesDataSize-=i.size,i.data=null,i.alreadyRead=0,i.size):0},l.prototype.getAllocatedSampleDataSize=function(){return this.samplesDataSize},l.prototype.getCodecs=function(){var t,e="";for(t=0;t<this.moov.traks.length;t++){var i=this.moov.traks[t];t>0&&(e+=","),e+=i.mdia.minf.stbl.stsd.entries[0].getCodec()}return e},l.prototype.getTrexById=function(t){var e;if(!this.moov||!this.moov.mvex)return null;for(e=0;e<this.moov.mvex.trexs.length;e++){var i=this.moov.mvex.trexs[e];if(i.track_id==t)return i}return null},l.prototype.getTrackById=function(t){if(void 0===this.moov)return null;for(var e=0;e<this.moov.traks.length;e++){var i=this.moov.traks[e];if(i.tkhd.track_id==t)return i}return null},l.prototype.items=[],l.prototype.itemsDataSize=0,l.prototype.flattenItemInfo=function(){var t,e,s,r=this.items,n=this.meta;if(null!=n&&void 0!==n.hdlr&&void 0!==n.iinf){for(t=0;t<n.iinf.item_infos.length;t++)(s={}).id=n.iinf.item_infos[t].item_ID,r[s.id]=s,s.ref_to=[],s.name=n.iinf.item_infos[t].item_name,n.iinf.item_infos[t].protection_index>0&&(s.protection=n.ipro.protections[n.iinf.item_infos[t].protection_index-1]),n.iinf.item_infos[t].item_type?s.type=n.iinf.item_infos[t].item_type:s.type="mime",s.content_type=n.iinf.item_infos[t].content_type,s.content_encoding=n.iinf.item_infos[t].content_encoding;if(n.iloc)for(t=0;t<n.iloc.items.length;t++){var a=n.iloc.items[t];switch(s=r[a.item_ID],0!==a.data_reference_index&&(i.warn("Item storage with reference to other files: not supported"),s.source=n.dinf.boxes[a.data_reference_index-1]),a.construction_method){case 0:break;case 1:case 2:i.warn("Item storage with construction_method : not supported")}for(s.extents=[],s.size=0,e=0;e<a.extents.length;e++)s.extents[e]={},s.extents[e].offset=a.extents[e].extent_offset+a.base_offset,s.extents[e].length=a.extents[e].extent_length,s.extents[e].alreadyRead=0,s.size+=s.extents[e].length}if(n.pitm&&(r[n.pitm.item_id].primary=!0),n.iref)for(t=0;t<n.iref.references.length;t++){var o=n.iref.references[t];for(e=0;e<o.references.length;e++)r[o.from_item_ID].ref_to.push({type:o.type,id:o.references[e]})}if(n.iprp)for(var h=0;h<n.iprp.ipmas.length;h++){var d=n.iprp.ipmas[h];for(t=0;t<d.associations.length;t++){var l=d.associations[t];for(void 0===(s=r[l.id]).properties&&(s.properties={},s.properties.boxes=[]),e=0;e<l.props.length;e++){var p=l.props[e];if(p.property_index>0&&p.property_index-1<n.iprp.ipco.boxes.length){var f=n.iprp.ipco.boxes[p.property_index-1];s.properties[f.type]=f,s.properties.boxes.push(f)}}}}}},l.prototype.getItem=function(t){if(!this.meta)return null;if(!(s=this.items[t]).data&&s.size)s.data=new Uint8Array(s.size),s.alreadyRead=0,this.itemsDataSize+=s.size,i.debug("ISOFile","Allocating item #"+t+" of size "+s.size+" (total: "+this.itemsDataSize+")");else if(s.alreadyRead===s.size)return s;for(var e,s,n=0;n<s.extents.length;n++){var a=s.extents[n];if(a.alreadyRead!==a.length){var o=this.stream.findPosition(!0,a.offset+a.alreadyRead,!1);if(!(o>-1))return null;var h=(e=this.stream.buffers[o]).byteLength-(a.offset+a.alreadyRead-e.fileStart);if(!(a.length-a.alreadyRead<=h))return i.debug("ISOFile","Getting item #"+t+" extent #"+n+" partial data (alreadyRead: "+a.alreadyRead+" offset: "+(a.offset+a.alreadyRead-e.fileStart)+" read size: "+h+" full extent size: "+a.length+" full item size: "+s.size+")"),r.memcpy(s.data.buffer,s.alreadyRead,e,a.offset+a.alreadyRead-e.fileStart,h),a.alreadyRead+=h,s.alreadyRead+=h,e.usedBytes+=h,this.stream.logBufferLevel(),null;i.debug("ISOFile","Getting item #"+t+" extent #"+n+" data (alreadyRead: "+a.alreadyRead+" offset: "+(a.offset+a.alreadyRead-e.fileStart)+" read size: "+(a.length-a.alreadyRead)+" full extent size: "+a.length+" full item size: "+s.size+")"),r.memcpy(s.data.buffer,s.alreadyRead,e,a.offset+a.alreadyRead-e.fileStart,a.length-a.alreadyRead),e.usedBytes+=a.length-a.alreadyRead,this.stream.logBufferLevel(),s.alreadyRead+=a.length-a.alreadyRead,a.alreadyRead=a.length}}return s.alreadyRead===s.size?s:null},l.prototype.releaseItem=function(t){var e=this.items[t];if(!e.data)return 0;this.itemsDataSize-=e.size,e.data=null,e.alreadyRead=0;for(var i=0;i<e.extents.length;i++)e.extents[i].alreadyRead=0;return e.size},l.prototype.processItems=function(t){for(var e in this.items){var i=this.items[e];this.getItem(i.id),t&&!i.sent&&(t(i),i.sent=!0,i.data=null)}},l.prototype.hasItem=function(t){for(var e in this.items){var i=this.items[e];if(i.name===t)return i.id}return -1},l.prototype.getMetaHandler=function(){return this.meta?this.meta.hdlr.handler:null},l.prototype.getPrimaryItem=function(){return this.meta&&this.meta.pitm?this.getItem(this.meta.pitm.item_id):null},l.prototype.itemToFragmentedTrackFile=function(t){var e=t||{},i=null;if(null==(i=e.itemId?this.getItem(e.itemId):this.getPrimaryItem()))return null;var s=new l;s.discardMdatData=!1;var r={type:i.type,description_boxes:i.properties.boxes};i.properties.ispe&&(r.width=i.properties.ispe.image_width,r.height=i.properties.ispe.image_height);var n=s.addTrack(r);return n?(s.addSample(n,i.data),s):null},l.prototype.write=function(t){for(var e=0;e<this.boxes.length;e++)this.boxes[e].write(t)},l.prototype.createFragment=function(t,e,s){var n=this.getTrackById(t),a=this.getSample(n,e);if(null==a)return a=n.samples[e],this.nextSeekPosition?this.nextSeekPosition=Math.min(a.offset+a.alreadyRead,this.nextSeekPosition):this.nextSeekPosition=n.samples[e].offset+a.alreadyRead,null;var h=s||new r;h.endianness=r.BIG_ENDIAN;var d=this.createSingleSampleMoof(a);d.write(h),d.trafs[0].truns[0].data_offset=d.size+8,i.debug("MP4Box","Adjusting 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