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this.bufferIndex>-1||(this.buffers.length>0?0===(t=this.buffers[0]).fileStart?(this.buffer=t,this.bufferIndex=0,n.debug("MultiBufferStream","Stream ready for parsing"),!0):(n.warn("MultiBufferStream","The first buffer should have a fileStart of 0"),this.logBufferLevel(),!1):(n.warn("MultiBufferStream","No buffer to start parsing from"),this.logBufferLevel(),!1))},ArrayBuffer.concat=function(t,e){n.debug("ArrayBuffer","Trying to create a new buffer of size: "+(t.byteLength+e.byteLength));var i=new Uint8Array(t.byteLength+e.byteLength);return i.set(new Uint8Array(t),0),i.set(new Uint8Array(e),t.byteLength),i.buffer},l.prototype.reduceBuffer=function(t,e,i){var r;return(r=new Uint8Array(i)).set(new Uint8Array(t,e,i)),r.buffer.fileStart=t.fileStart+e,r.buffer.usedBytes=0,r.buffer},l.prototype.insertBuffer=function(t){for(var e=!0,i=0;ir.byteLength){this.buffers.splice(i,1),i--;continue}n.warn("MultiBufferStream","Buffer (fileStart: "+t.fileStart+" - Length: "+t.byteLength+") already 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r,s=null,a=-1;for(r=!0===t?0:this.bufferIndex;r=e?(n.debug("MultiBufferStream","Found position in existing buffer #"+a),a):-1},l.prototype.findEndContiguousBuf=function(t){var e,i,r,n=void 0!==t?t:this.bufferIndex;if(i=this.buffers[n],this.buffers.length>n+1)for(e=n+1;e>3;return 31===r&&i.data.length>=2&&(r=32+((7&i.data[0])<<3)+((224&i.data[1])>>5)),r}return null},i.DecoderConfigDescriptor=function(t){i.Descriptor.call(this,4,t)},i.DecoderConfigDescriptor.prototype=new i.Descriptor,i.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)},i.DecoderSpecificInfo=function(t){i.Descriptor.call(this,5,t)},i.DecoderSpecificInfo.prototype=new i.Descriptor,i.SLConfigDescriptor=function(t){i.Descriptor.call(this,6,t)},i.SLConfigDescriptor.prototype=new i.Descriptor,this};t.MPEG4DescriptorParser=h;var d={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(){d.FullBox.prototype=new d.Box,d.ContainerBox.prototype=new d.Box,d.SampleEntry.prototype=new d.Box,d.TrackGroupTypeBox.prototype=new d.FullBox,d.BASIC_BOXES.forEach((function(t){d.createBoxCtor(t)})),d.FULL_BOXES.forEach((function(t){d.createFullBoxCtor(t)})),d.CONTAINER_BOXES.forEach((function(t){d.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){d.Box.call(this,t,e,i),this.flags=0,this.version=0},ContainerBox:function(t,e,i){d.Box.call(this,t,e,i),this.boxes=[]},SampleEntry:function(t,e,i,r){d.ContainerBox.call(this,t,e),this.hdr_size=i,this.start=r},SampleGroupEntry:function(t){this.grouping_type=t},TrackGroupTypeBox:function(t,e){d.FullBox.call(this,t,e)},createBoxCtor:function(t,e){d.boxCodes.push(t),d[t+"Box"]=function(e){d.Box.call(this,t,e)},d[t+"Box"].prototype=new d.Box,e&&(d[t+"Box"].prototype.parse=e)},createFullBoxCtor:function(t,e){d[t+"Box"]=function(e){d.FullBox.call(this,t,e)},d[t+"Box"].prototype=new d.FullBox,d[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;ii?(n.error("BoxParser","Box of type '"+c+"' has a size "+h+" greater than its container size "+i),{code:d.ERR_NOT_ENOUGH_DATA,type:c,size:h,hdr_size:l,start:o}):o+h>t.getEndPosition()?(t.seek(o),n.info("BoxParser","Not enough data in stream to parse the entire '"+c+"' box"),{code:d.ERR_NOT_ENOUGH_DATA,type:c,size:h,hdr_size:l,start:o}):e?{code:d.OK,type:c,size:h,hdr_size:l,start:o}:(d[c+"Box"]?r=new d[c+"Box"](h):"uuid"!==c?(n.warn("BoxParser","Unknown box type: '"+c+"'"),(r=new d.Box(c,h)).has_unparsed_data=!0):d.UUIDBoxes[a]?r=new d.UUIDBoxes[a](h):(n.warn("BoxParser","Unknown uuid type: '"+a+"'"),(r=new d.Box(c,h)).uuid=a,r.has_unparsed_data=!0),r.hdr_size=l,r.start=o,r.write===d.Box.prototype.write&&"mdat"!==r.type&&(n.info("BoxParser","'"+p+"' box writing not yet implemented, keeping unparsed data in memory for later write"),r.parseDataAndRewind(t)),r.parse(t),(s=t.getPosition()-(r.start+r.size))<0?(n.warn("BoxParser","Parsing of box '"+p+"' did not read the entire indicated box data size (missing "+-s+" bytes), seeking forward"),t.seek(r.start+r.size)):s>0&&(n.error("BoxParser","Parsing of box '"+p+"' read "+s+" more bytes than the indicated box data size, seeking backwards"),t.seek(r.start+r.size)),{code:d.OK,box:r,size:r.size})},d.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)},d.Box.prototype.parseDataAndRewind=function(t){this.data=t.readUint8Array(this.size-this.hdr_size),t.position-=this.size-this.hdr_size},d.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},d.FullBox.prototype.parseFullHeader=function(t){this.version=t.readUint8(),this.flags=t.readUint24(),this.hdr_size+=4},d.FullBox.prototype.parse=function(t){this.parseFullHeader(t),this.data=t.readUint8Array(this.size-this.hdr_size)},d.ContainerBox.prototype.parse=function(t){for(var e,i;t.getPosition()>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)},d.SAMPLE_ENTRY_TYPE_VISUAL="Visual",d.SAMPLE_ENTRY_TYPE_AUDIO="Audio",d.SAMPLE_ENTRY_TYPE_HINT="Hint",d.SAMPLE_ENTRY_TYPE_METADATA="Metadata",d.SAMPLE_ENTRY_TYPE_SUBTITLE="Subtitle",d.SAMPLE_ENTRY_TYPE_SYSTEM="System",d.SAMPLE_ENTRY_TYPE_TEXT="Text",d.SampleEntry.prototype.parseHeader=function(t){t.readUint8Array(6),this.data_reference_index=t.readUint16(),this.hdr_size+=8},d.SampleEntry.prototype.parse=function(t){this.parseHeader(t),this.data=t.readUint8Array(this.size-this.hdr_size)},d.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},d.SampleEntry.prototype.parseFooter=function(t){d.ContainerBox.prototype.parse.call(this,t)},d.createMediaSampleEntryCtor(d.SAMPLE_ENTRY_TYPE_HINT),d.createMediaSampleEntryCtor(d.SAMPLE_ENTRY_TYPE_METADATA),d.createMediaSampleEntryCtor(d.SAMPLE_ENTRY_TYPE_SUBTITLE),d.createMediaSampleEntryCtor(d.SAMPLE_ENTRY_TYPE_SYSTEM),d.createMediaSampleEntryCtor(d.SAMPLE_ENTRY_TYPE_TEXT),d.createMediaSampleEntryCtor(d.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)})),d.createMediaSampleEntryCtor(d.SAMPLE_ENTRY_TYPE_AUDIO,(function(t){this.parseHeader(t),t.readUint32Array(2),this.channel_count=t.readUint16(),this.samplesize=t.readUint16(),t.readUint16(),t.readUint16(),this.samplerate=t.readUint32()/65536,this.parseFooter(t)})),d.createSampleEntryCtor(d.SAMPLE_ENTRY_TYPE_VISUAL,"avc1"),d.createSampleEntryCtor(d.SAMPLE_ENTRY_TYPE_VISUAL,"avc2"),d.createSampleEntryCtor(d.SAMPLE_ENTRY_TYPE_VISUAL,"avc3"),d.createSampleEntryCtor(d.SAMPLE_ENTRY_TYPE_VISUAL,"avc4"),d.createSampleEntryCtor(d.SAMPLE_ENTRY_TYPE_VISUAL,"av01"),d.createSampleEntryCtor(d.SAMPLE_ENTRY_TYPE_VISUAL,"hvc1"),d.createSampleEntryCtor(d.SAMPLE_ENTRY_TYPE_VISUAL,"hev1"),d.createSampleEntryCtor(d.SAMPLE_ENTRY_TYPE_AUDIO,"mp4a"),d.createSampleEntryCtor(d.SAMPLE_ENTRY_TYPE_AUDIO,"ac-3"),d.createSampleEntryCtor(d.SAMPLE_ENTRY_TYPE_AUDIO,"ec-3"),d.createEncryptedSampleEntryCtor(d.SAMPLE_ENTRY_TYPE_VISUAL,"encv"),d.createEncryptedSampleEntryCtor(d.SAMPLE_ENTRY_TYPE_AUDIO,"enca"),d.createEncryptedSampleEntryCtor(d.SAMPLE_ENTRY_TYPE_SUBTITLE,"encu"),d.createEncryptedSampleEntryCtor(d.SAMPLE_ENTRY_TYPE_SYSTEM,"encs"),d.createEncryptedSampleEntryCtor(d.SAMPLE_ENTRY_TYPE_TEXT,"enct"),d.createEncryptedSampleEntryCtor(d.SAMPLE_ENTRY_TYPE_METADATA,"encm"),d.createBoxCtor("a1lx",(function(t){var e=16*(1+(1&(1&t.readUint8())));this.layer_size=[];for(var i=0;i<3;i++)this.layer_size[i]=16==e?t.readUint16():t.readUint32()})),d.createBoxCtor("a1op",(function(t){this.op_index=t.readUint8()})),d.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)})),d.createBoxCtor("av1C",(function(t){var e=t.readUint8();if(e>>7&!1)n.error("av1C marker problem");else if(this.version=127&e,1===this.version)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){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 n.error("av1C reserved_2 parsing problem");var i=this.size-this.hdr_size-4;this.configOBUs=t.readUint8Array(i)}else n.error("av1C reserved_1 parsing problem");else n.error("av1C version "+this.version+" not supported")})),d.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;e0&&(this.ext=t.readUint8Array(i))})),d.createBoxCtor("btrt",(function(t){this.bufferSizeDB=t.readUint32(),this.maxBitrate=t.readUint32(),this.avgBitrate=t.readUint32()})),d.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()})),d.createBoxCtor("clli",(function(t){this.max_content_light_level=t.readUint16(),this.max_pic_average_light_level=t.readUint16()})),d.createFullBoxCtor("co64",(function(t){var e,i;if(e=t.readUint32(),this.chunk_offsets=[],0===this.version)for(i=0;i>7}else("rICC"===this.colour_type||"prof"===this.colour_type)&&(this.ICC_profile=t.readUint8Array(this.size-4))})),d.createFullBoxCtor("cprt",(function(t){this.parseLanguage(t),this.notice=t.readCString()})),d.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())})),d.createFullBoxCtor("ctts",(function(t){var e,i;if(e=t.readUint32(),this.sample_counts=[],this.sample_offsets=[],0===this.version)for(i=0;i>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|r>>5&7})),d.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>6,r.bsid=n>>1&31,r.bsmod=(1&n)<<4|s>>4&15,r.acmod=s>>1&7,r.lfeon=1&s,r.num_dep_sub=a>>1&15,r.num_dep_sub>0&&(r.chan_loc=(1&a)<<8|t.readUint8())}})),d.createFullBoxCtor("dfLa",(function(t){var e=[],i=["STREAMINFO","PADDING","APPLICATION","SEEKTABLE","VORBIS_COMMENT","CUESHEET","PICTURE","RESERVED"];for(this.parseFullHeader(t);;){var r=t.readUint8(),n=Math.min(127&r,i.length-1);if(n?t.readUint8Array(t.readUint24()):(t.readUint8Array(13),this.samplerate=t.readUint32()>>12,t.readUint8Array(20)),e.push(i[n]),128&r)break}this.numMetadataBlocks=e.length+" ("+e.join(", ")+")"})),d.createBoxCtor("dimm",(function(t){this.bytessent=t.readUint64()})),d.createBoxCtor("dmax",(function(t){this.time=t.readUint32()})),d.createBoxCtor("dmed",(function(t){this.bytessent=t.readUint64()})),d.createFullBoxCtor("dref",(function(t){var e,i;this.entries=[];for(var r=t.readUint32(),n=0;n=4;)this.compatible_brands[i]=t.readString(4),e-=4,i++})),d.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)))})),d.createBoxCtor("hvcC",(function(t){var e,i,r,n;this.configurationVersion=t.readUint8(),n=t.readUint8(),this.general_profile_space=n>>6,this.general_tier_flag=(32&n)>>5,this.general_profile_idc=31&n,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(),n=t.readUint8(),this.constantFrameRate=n>>6,this.numTemporalLayers=(13&n)>>3,this.temporalIdNested=(4&n)>>2,this.lengthSizeMinusOne=3&n,this.nalu_arrays=[];var s=t.readUint8();for(e=0;e>7,a.nalu_type=63&n;var o=t.readUint16();for(i=0;i>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 i=0;if(this.version<2)i=t.readUint16();else{if(2!==this.version)throw"version of iloc box not supported";i=t.readUint32()}for(var r=0;r>7,this.axis=1&e})),d.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)return this.extension_type=t.readString(4),n.warn("BoxParser","Cannot parse extension type"),void t.seek(this.start+this.size);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()))})),d.createFullBoxCtor("ipma",(function(t){var e,i;for(entry_count=t.readUint32(),this.associations=[],e=0;e>7==1,1&this.flags?a.property_index=(127&s)<<8|t.readUint8():a.property_index=127&s}}})),d.createFullBoxCtor("iref",(function(t){var e,i;for(this.references=[];t.getPosition()>7,r.assignment_type=127&s,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:n.warn("BoxParser","Unknown leva assignement type")}}})),d.createBoxCtor("lsel",(function(t){this.layer_id=t.readUint16()})),d.createBoxCtor("maxr",(function(t){this.period=t.readUint32(),this.bytes=t.readUint32()})),d.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()})),d.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()})),d.createFullBoxCtor("mehd",(function(t){1&this.flags&&(n.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()})),d.createFullBoxCtor("meta",(function(t){this.boxes=[],d.ContainerBox.prototype.parse.call(this,t)})),d.createFullBoxCtor("mfhd",(function(t){this.sequence_number=t.readUint32()})),d.createFullBoxCtor("mfro",(function(t){this._size=t.readUint32()})),d.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()})),d.createBoxCtor("npck",(function(t){this.packetssent=t.readUint32()})),d.createBoxCtor("nump",(function(t){this.packetssent=t.readUint64()})),d.createFullBoxCtor("padb",(function(t){var e=t.readUint32();this.padbits=[];for(var i=0;i0){var e=t.readUint32();this.kid=[];for(var i=0;i0&&(this.data=t.readUint8Array(r))})),d.createFullBoxCtor("clef",(function(t){this.width=t.readUint32(),this.height=t.readUint32()})),d.createFullBoxCtor("enof",(function(t){this.width=t.readUint32(),this.height=t.readUint32()})),d.createFullBoxCtor("prof",(function(t){this.width=t.readUint32(),this.height=t.readUint32()})),d.createContainerBoxCtor("tapt",null,["clef","prof","enof"]),d.createBoxCtor("rtp ",(function(t){this.descriptionformat=t.readString(4),this.sdptext=t.readString(this.size-this.hdr_size-4)})),d.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>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(),r=0;r>7,this.num_leading_samples=127&e})),d.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)n.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>4,this.skip_byte_block=15&e,this.isProtected=t.readUint8(),this.Per_Sample_IV_Size=t.readUint8(),this.KID=d.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))})),d.createSampleGroupCtor("stsa",(function(t){n.warn("BoxParser","Sample Group type: "+this.grouping_type+" not fully parsed")})),d.createSampleGroupCtor("sync",(function(t){var e=t.readUint8();this.NAL_unit_type=63&e})),d.createSampleGroupCtor("tele",(function(t){var e=t.readUint8();this.level_independently_decodable=e>>7})),d.createSampleGroupCtor("tsas",(function(t){n.warn("BoxParser","Sample Group type: "+this.grouping_type+" not fully parsed")})),d.createSampleGroupCtor("tscl",(function(t){n.warn("BoxParser","Sample Group type: "+this.grouping_type+" not fully parsed")})),d.createSampleGroupCtor("vipr",(function(t){n.warn("BoxParser","Sample Group type: "+this.grouping_type+" not fully parsed")})),d.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>6,this.sample_depends_on[r]=e>>4&3,this.sample_is_depended_on[r]=e>>2&3,this.sample_has_redundancy[r]=3&e})),d.createFullBoxCtor("senc"),d.createFullBoxCtor("sgpd",(function(t){this.grouping_type=t.readString(4),n.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=t.readUint32(),i=0;i>31&1,r.referenced_size=2147483647&n,r.subsegment_duration=t.readUint32(),n=t.readUint32(),r.starts_with_SAP=n>>31&1,r.SAP_type=n>>28&7,r.SAP_delta_time=268435455&n}})),d.SingleItemTypeReferenceBox=function(t,e,i,r){d.Box.call(this,t,e),this.hdr_size=i,this.start=r},d.SingleItemTypeReferenceBox.prototype=new d.Box,d.SingleItemTypeReferenceBox.prototype.parse=function(t){this.from_item_ID=t.readUint16();var e=t.readUint16();this.references=[];for(var i=0;i>4&15,this.sample_sizes[e+1]=15&r}else if(8===this.field_size)for(e=0;e0)for(i=0;i>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=d.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))})),d.createFullBoxCtor("tfdt",(function(t){1==this.version?this.baseMediaDecodeTime=t.readUint64():this.baseMediaDecodeTime=t.readUint32()})),d.createFullBoxCtor("tfhd",(function(t){var e=0;this.track_id=t.readUint32(),this.size-this.hdr_size>e&&this.flags&d.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&d.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&d.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&d.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&d.TFHD_FLAG_SAMPLE_FLAGS?(this.default_sample_flags=t.readUint32(),e+=4):this.default_sample_flags=0})),d.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(),r=0;r>8,t.readUint16(),this.matrix=t.readInt32Array(9),this.width=t.readUint32(),this.height=t.readUint32()})),d.createBoxCtor("tmax",(function(t){this.time=t.readUint32()})),d.createBoxCtor("tmin",(function(t){this.time=t.readUint32()})),d.createBoxCtor("totl",(function(t){this.bytessent=t.readUint32()})),d.createBoxCtor("tpay",(function(t){this.bytessent=t.readUint32()})),d.createBoxCtor("tpyl",(function(t){this.bytessent=t.readUint64()})),d.TrackGroupTypeBox.prototype.parse=function(t){this.parseFullHeader(t),this.track_group_id=t.readUint32()},d.createTrackGroupCtor("msrc"),d.TrackReferenceTypeBox=function(t,e,i,r){d.Box.call(this,t,e),this.hdr_size=i,this.start=r},d.TrackReferenceTypeBox.prototype=new d.Box,d.TrackReferenceTypeBox.prototype.parse=function(t){this.track_ids=t.readUint32Array((this.size-this.hdr_size)/4)},d.trefBox.prototype.parse=function(t){for(var e,i;t.getPosition()e&&this.flags&d.TRUN_FLAGS_DATA_OFFSET?(this.data_offset=t.readInt32(),e+=4):this.data_offset=0,this.size-this.hdr_size>e&&this.flags&d.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;i0&&(this.location=t.readCString())})),d.createUUIDBox("a5d40b30e81411ddba2f0800200c9a66",!0,!1,(function(t){this.LiveServerManifest=t.readString(this.size-this.hdr_size).replace(/&/g,"&").replace(//g,">").replace(/"/g,""").replace(/'/g,"'")})),d.createUUIDBox("d08a4f1810f34a82b6c832d8aba183d3",!0,!1,(function(t){this.system_id=d.parseHex16(t);var e=t.readUint32();e>0&&(this.data=t.readUint8Array(e))})),d.createUUIDBox("a2394f525a9b4f14a2446c427c648df4",!0,!1),d.createUUIDBox("8974dbce7be74c5184f97148f9882554",!0,!1,(function(t){this.default_AlgorithmID=t.readUint24(),this.default_IV_size=t.readUint8(),this.default_KID=d.parseHex16(t)})),d.createUUIDBox("d4807ef2ca3946958e5426cb9e46a79f",!0,!1,(function(t){this.fragment_count=t.readUint8(),this.entries=[];for(var e=0;e>4,this.chromaSubsampling=e>>1&7,this.videoFullRangeFlag=1&e,this.colourPrimaries=t.readUint8(),this.transferCharacteristics=t.readUint8(),this.matrixCoefficients=t.readUint8(),this.codecIntializationDataSize=t.readUint16(),this.codecIntializationData=t.readUint8Array(this.codecIntializationDataSize)):(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))})),d.createBoxCtor("vttC",(function(t){this.text=t.readString(this.size-this.hdr_size)})),d.SampleEntry.prototype.isVideo=function(){return!1},d.SampleEntry.prototype.isAudio=function(){return!1},d.SampleEntry.prototype.isSubtitle=function(){return!1},d.SampleEntry.prototype.isMetadata=function(){return!1},d.SampleEntry.prototype.isHint=function(){return!1},d.SampleEntry.prototype.getCodec=function(){return this.type.replace(".","")},d.SampleEntry.prototype.getWidth=function(){return""},d.SampleEntry.prototype.getHeight=function(){return""},d.SampleEntry.prototype.getChannelCount=function(){return""},d.SampleEntry.prototype.getSampleRate=function(){return""},d.SampleEntry.prototype.getSampleSize=function(){return""},d.VisualSampleEntry.prototype.isVideo=function(){return!0},d.VisualSampleEntry.prototype.getWidth=function(){return this.width},d.VisualSampleEntry.prototype.getHeight=function(){return this.height},d.AudioSampleEntry.prototype.isAudio=function(){return!0},d.AudioSampleEntry.prototype.getChannelCount=function(){return this.channel_count},d.AudioSampleEntry.prototype.getSampleRate=function(){return this.samplerate},d.AudioSampleEntry.prototype.getSampleSize=function(){return this.samplesize},d.SubtitleSampleEntry.prototype.isSubtitle=function(){return!0},d.MetadataSampleEntry.prototype.isMetadata=function(){return!0},d.decimalToHex=function(t,e){var i=Number(t).toString(16);for(e=null==e?e=2:e;i.length>=1;e+=d.decimalToHex(r,0),e+=".",0===this.hvcC.general_tier_flag?e+="L":e+="H",e+=this.hvcC.general_level_idc;var n=!1,s="";for(t=5;t>=0;t--)(this.hvcC.general_constraint_indicator[t]||n)&&(s="."+d.decimalToHex(this.hvcC.general_constraint_indicator[t],0)+s,n=!0);e+=s}return e},d.mp4aSampleEntry.prototype.getCodec=function(){var t=d.SampleEntry.prototype.getCodec.call(this);if(this.esds&&this.esds.esd){var e=this.esds.esd.getOTI(),i=this.esds.esd.getAudioConfig();return t+"."+d.decimalToHex(e)+(i?"."+i:"")}return t},d.stxtSampleEntry.prototype.getCodec=function(){var t=d.SampleEntry.prototype.getCodec.call(this);return this.mime_format?t+"."+this.mime_format:t},d.av01SampleEntry.prototype.getCodec=function(){var t,e=d.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},d.Box.prototype.writeHeader=function(t,e){this.size+=8,this.size>o&&(this.size+=8),"uuid"===this.type&&(this.size+=16),n.debug("BoxWriter","Writing box "+this.type+" of size: "+this.size+" at position "+t.getPosition()+(e||"")),this.size>o?t.writeUint32(1):(this.sizePosition=t.getPosition(),t.writeUint32(this.size)),t.writeString(this.type,null,4),"uuid"===this.type&&t.writeUint8Array(this.uuid),this.size>o&&t.writeUint64(this.size)},d.FullBox.prototype.writeHeader=function(t){this.size+=4,d.Box.prototype.writeHeader.call(this,t," v="+this.version+" f="+this.flags),t.writeUint8(this.version),t.writeUint24(this.flags)},d.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))},d.ContainerBox.prototype.write=function(t){this.size=0,this.writeHeader(t);for(var e=0;e=2&&t.writeUint32(this.default_sample_description_index),t.writeUint32(this.entries.length),e=0;e0)for(e=0;e+1e?1:0,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)},d.tfhdBox.prototype.write=function(t){this.version=0,this.size=4,this.flags&d.TFHD_FLAG_BASE_DATA_OFFSET&&(this.size+=8),this.flags&d.TFHD_FLAG_SAMPLE_DESC&&(this.size+=4),this.flags&d.TFHD_FLAG_SAMPLE_DUR&&(this.size+=4),this.flags&d.TFHD_FLAG_SAMPLE_SIZE&&(this.size+=4),this.flags&d.TFHD_FLAG_SAMPLE_FLAGS&&(this.size+=4),this.writeHeader(t),t.writeUint32(this.track_id),this.flags&d.TFHD_FLAG_BASE_DATA_OFFSET&&t.writeUint64(this.base_data_offset),this.flags&d.TFHD_FLAG_SAMPLE_DESC&&t.writeUint32(this.default_sample_description_index),this.flags&d.TFHD_FLAG_SAMPLE_DUR&&t.writeUint32(this.default_sample_duration),this.flags&d.TFHD_FLAG_SAMPLE_SIZE&&t.writeUint32(this.default_sample_size),this.flags&d.TFHD_FLAG_SAMPLE_FLAGS&&t.writeUint32(this.default_sample_flags)},d.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)},d.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)},d.trunBox.prototype.write=function(t){this.version=0,this.size=4,this.flags&d.TRUN_FLAGS_DATA_OFFSET&&(this.size+=4),this.flags&d.TRUN_FLAGS_FIRST_FLAG&&(this.size+=4),this.flags&d.TRUN_FLAGS_DURATION&&(this.size+=4*this.sample_duration.length),this.flags&d.TRUN_FLAGS_SIZE&&(this.size+=4*this.sample_size.length),this.flags&d.TRUN_FLAGS_FLAGS&&(this.size+=4*this.sample_flags.length),this.flags&d.TRUN_FLAGS_CTS_OFFSET&&(this.size+=4*this.sample_composition_time_offset.length),this.writeHeader(t),t.writeUint32(this.sample_count),this.flags&d.TRUN_FLAGS_DATA_OFFSET&&(this.data_offset_position=t.getPosition(),t.writeInt32(this.data_offset)),this.flags&d.TRUN_FLAGS_FIRST_FLAG&&t.writeUint32(this.first_sample_flags);for(var e=0;e-1||t[i]instanceof d.Box||e[i]instanceof d.Box||void 0===t[i]||void 0===e[i]||"function"==typeof t[i]||"function"==typeof e[i]||t.subBoxNames&&t.subBoxNames.indexOf(i.slice(0,4))>-1||e.subBoxNames&&e.subBoxNames.indexOf(i.slice(0,4))>-1||"data"===i||"start"===i||"size"===i||"creation_time"===i||"modification_time"===i||d.DIFF_PRIMITIVE_ARRAY_PROP_NAMES.indexOf(i)>-1||t[i]===e[i]))return!1;return!0},d.boxEqual=function(t,e){if(!d.boxEqualFields(t,e))return!1;for(var i=0;i1)for(e=1;e-1&&this.fragmentedTracks.splice(e,1)},u.prototype.setExtractionOptions=function(t,e,i){var r=this.getTrackById(t);if(r){var n={};this.extractedTracks.push(n),n.id=t,n.user=e,n.trak=r,r.nextSample=0,n.nb_samples=1e3,n.samples=[],i&&i.nbSamples&&(n.nb_samples=i.nbSamples)}},u.prototype.unsetExtractionOptions=function(t){for(var e=-1,i=0;i-1&&this.extractedTracks.splice(e,1)},u.prototype.parse=function(){var t,e;if(!this.restoreParsePosition||this.restoreParsePosition())for(;;){if(this.hasIncompleteMdat&&this.hasIncompleteMdat()){if(this.processIncompleteMdat())continue;return}if(this.saveParsePosition&&this.saveParsePosition(),(t=d.parseOneBox(this.stream,false)).code===d.ERR_NOT_ENOUGH_DATA){if(this.processIncompleteBox){if(this.processIncompleteBox(t))continue;return}return}var i;switch(i="uuid"!==(e=t.box).type?e.type:e.uuid,this.boxes.push(e),i){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[i]&&n.warn("ISOFile","Duplicate Box of type: "+i+", overriding previous occurrence"),this[i]=e}this.updateUsedBytes&&this.updateUsedBytes(e,t)}},u.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?(n.warn("ISOFile","Ignoring empty buffer (fileStart: "+t.fileStart+")"),this.stream.logBufferLevel(),!1):(n.info("ISOFile","Processing buffer (fileStart: "+t.fileStart+")"),t.usedBytes=0,this.stream.insertBuffer(t),this.stream.logBufferLevel(),!!this.stream.initialized()||(n.warn("ISOFile","Not ready to start parsing"),!1))},u.prototype.appendBuffer=function(t,e){var i;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.readySent&&(this.readySent=!0,this.onReady(this.getInfo())),this.processSamples(e),this.nextSeekPosition?(i=this.nextSeekPosition,this.nextSeekPosition=void 0):i=this.nextParsePosition,this.stream.getEndFilePositionAfter&&(i=this.stream.getEndFilePositionAfter(i))):i=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&&(n.info("ISOFile","Done processing buffer (fileStart: "+t.fileStart+") - next buffer to fetch should have a fileStart position of "+i),this.stream.logBufferLevel(),this.stream.cleanBuffers(),this.stream.logBufferLevel(!0),n.info("ISOFile","Sample data size in memory: "+this.getAllocatedSampleDataSize())),i},u.prototype.getInfo=function(){var t,e,i,r,n,s={},a=new Date("1904-01-01T00:00:00Z").getTime();if(this.moov)for(s.hasMoov=!0,s.duration=this.moov.mvhd.duration,s.timescale=this.moov.mvhd.timescale,s.isFragmented=null!=this.moov.mvex,s.isFragmented&&this.moov.mvex.mehd&&(s.fragment_duration=this.moov.mvex.mehd.fragment_duration),s.isProgressive=this.isProgressive,s.hasIOD=null!=this.moov.iods,s.brands=[],s.brands.push(this.ftyp.major_brand),s.brands=s.brands.concat(this.ftyp.compatible_brands),s.created=new Date(a+1e3*this.moov.mvhd.creation_time),s.modified=new Date(a+1e3*this.moov.mvhd.modification_time),s.tracks=[],s.audioTracks=[],s.videoTracks=[],s.subtitleTracks=[],s.metadataTracks=[],s.hintTracks=[],s.otherTracks=[],t=0;t0?s.mime+='video/mp4; codecs="':s.audioTracks&&s.audioTracks.length>0?s.mime+='audio/mp4; codecs="':s.mime+='application/mp4; codecs="',t=0;t=i.samples.length)&&(n.info("ISOFile","Sending fragmented data on track #"+r.id+" for samples ["+Math.max(0,i.nextSample-r.nb_samples)+","+(i.nextSample-1)+"]"),n.info("ISOFile","Sample data size in memory: "+this.getAllocatedSampleDataSize()),this.onSegment&&this.onSegment(r.id,r.user,r.segmentStream.buffer,i.nextSample,t||i.nextSample>=i.samples.length),r.segmentStream=null,r!==this.fragmentedTracks[e]))break}}if(null!==this.onSamples)for(e=0;e=i.samples.length)&&(n.debug("ISOFile","Sending samples on track #"+a.id+" for sample "+i.nextSample),this.onSamples&&this.onSamples(a.id,a.user,a.samples),a.samples=[],a!==this.extractedTracks[e]))break}}}},u.prototype.getBox=function(t){var e=this.getBoxes(t,!0);return e.length?e[0]:null},u.prototype.getBoxes=function(t,e){var i=[];return u._sweep.call(this,t,i,e),i},u._sweep=function(t,e,i){for(var r in this.type&&this.type==t&&e.push(this),this.boxes){if(e.length&&i)return;u._sweep.call(this.boxes[r],t,e,i)}},u.prototype.getTrackSamplesInfo=function(t){var e=this.getTrackById(t);return e?e.samples:void 0},u.prototype.getTrackSample=function(t,e){var i=this.getTrackById(t);return this.getSample(i,e)},u.prototype.releaseUsedSamples=function(t,e){var i=0,r=this.getTrackById(t);r.lastValidSample||(r.lastValidSample=0);for(var s=r.lastValidSample;st*s.timescale){h=r-1;break}e&&s.is_sync&&(l=r)}for(e&&(h=l),t=i.samples[h].cts,i.nextSample=h;i.samples[h].alreadyRead===i.samples[h].size&&i.samples[h+1];)h++;return a=i.samples[h].offset+i.samples[h].alreadyRead,n.info("ISOFile","Seeking to "+(e?"RAP":"")+" sample #"+i.nextSample+" on track "+i.tkhd.track_id+", time "+n.getDurationString(t,o)+" and offset: "+a),{offset:a,time:t/o}},u.prototype.seek=function(t,e){var i,r,s,a=this.moov,o={offset:1/0,time:1/0};if(this.moov){for(s=0;s-1){o=l;break}switch(o){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",72<<16).set("vertresolution",72<<16).set("frame_count",1).set("compressorname",e.type+" Compressor").set("depth",24),e.avcDecoderConfigRecord){var p=new d.avcCBox,u=new s(e.avcDecoderConfigRecord);p.parse(u),a.addBox(p)}break;case"Audio":n.add("smhd").set("balance",e.balance||0),a.set("channel_count",e.channel_count||2).set("samplesize",e.samplesize||16).set("samplerate",e.samplerate||65536);break;case"Hint":n.add("hmhd");break;case"Subtitle":if(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 d["url Box"]).set("flags",1));var f=n.add("stbl");return f.add("stsd").addEntry(a),f.add("stts").set("sample_counts",[]).set("sample_deltas",[]),f.add("stsc").set("first_chunk",[]).set("samples_per_chunk",[]).set("sample_description_index",[]),f.add("stco").set("chunk_offsets",[]),f.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}},d.Box.prototype.computeSize=function(t){var e=t||new a;e.endianness=a.BIG_ENDIAN,this.write(e)},u.prototype.addSample=function(t,e,i){var r=i||{},n={},s=this.getTrackById(t);if(null!==s){n.number=s.samples.length,n.track_id=s.tkhd.track_id,n.timescale=s.mdia.mdhd.timescale,n.description_index=r.sample_description_index?r.sample_description_index-1:0,n.description=s.mdia.minf.stbl.stsd.entries[n.description_index],n.data=e,n.size=e.byteLength,n.alreadyRead=n.size,n.duration=r.duration||1,n.cts=r.cts||0,n.dts=r.dts||0,n.is_sync=r.is_sync||!1,n.is_leading=r.is_leading||0,n.depends_on=r.depends_on||0,n.is_depended_on=r.is_depended_on||0,n.has_redundancy=r.has_redundancy||0,n.degradation_priority=r.degradation_priority||0,n.offset=0,n.subsamples=r.subsamples,s.samples.push(n),s.samples_size+=n.size,s.samples_duration+=n.duration,s.first_dts||(s.first_dts=r.dts),this.processSamples();var a=this.createSingleSampleMoof(n);return this.addBox(a),a.computeSize(),a.trafs[0].truns[0].data_offset=a.size+8,this.add("mdat").data=new Uint8Array(e),n}},u.prototype.createSingleSampleMoof=function(t){var e=0;e=t.is_sync?1<<25:65536;var i=new d.moofBox;i.add("mfhd").set("sequence_number",this.nextMoofNumber),this.nextMoofNumber++;var r=i.add("traf"),n=this.getTrackById(t.track_id);return r.add("tfhd").set("track_id",t.track_id).set("flags",d.TFHD_FLAG_DEFAULT_BASE_IS_MOOF),r.add("tfdt").set("baseMediaDecodeTime",t.dts-n.first_dts),r.add("trun").set("flags",d.TRUN_FLAGS_DATA_OFFSET|d.TRUN_FLAGS_DURATION|d.TRUN_FLAGS_SIZE|d.TRUN_FLAGS_FLAGS|d.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},u.prototype.lastMoofIndex=0,u.prototype.samplesDataSize=0,u.prototype.resetTables=function(){var t,e,i,r,n,s;for(this.initial_duration=this.moov.mvhd.duration,this.moov.mvhd.duration=0,t=0;t=2&&(l=n[a].grouping_type+"/0",(o=new h(n[a].grouping_type,0)).is_fragment=!0,e.sample_groups_info[l]||(e.sample_groups_info[l]=o))}else for(a=0;a=2&&(l=r[a].grouping_type+"/0",o=new h(r[a].grouping_type,0),t.sample_groups_info[l]||(t.sample_groups_info[l]=o))},u.setSampleGroupProperties=function(t,e,i,r){var n,s;for(n in e.sample_groups=[],r){var a;if(e.sample_groups[n]={},e.sample_groups[n].grouping_type=r[n].grouping_type,e.sample_groups[n].grouping_type_parameter=r[n].grouping_type_parameter,i>=r[n].last_sample_in_run&&(r[n].last_sample_in_run<0&&(r[n].last_sample_in_run=0),r[n].entry_index++,r[n].entry_index<=r[n].sbgp.entries.length-1&&(r[n].last_sample_in_run+=r[n].sbgp.entries[r[n].entry_index].sample_count)),r[n].entry_index<=r[n].sbgp.entries.length-1?e.sample_groups[n].group_description_index=r[n].sbgp.entries[r[n].entry_index].group_description_index:e.sample_groups[n].group_description_index=-1,0!==e.sample_groups[n].group_description_index)a=r[n].fragment_description?r[n].fragment_description:r[n].description,e.sample_groups[n].group_description_index>0?(s=e.sample_groups[n].group_description_index>65535?(e.sample_groups[n].group_description_index>>16)-1:e.sample_groups[n].group_description_index-1,a&&s>=0&&(e.sample_groups[n].description=a.entries[s])):a&&a.version>=2&&a.default_group_description_index>0&&(e.sample_groups[n].description=a.entries[a.default_group_description_index-1])}},u.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))},u.prototype.buildSampleLists=function(){var t,e;for(t=0;tb&&(x++,b<0&&(b=0),b+=s.sample_counts[x]),e>0?(t.samples[e-1].duration=s.sample_deltas[x],t.samples_duration+=t.samples[e-1].duration,$.dts=t.samples[e-1].dts+t.samples[e-1].duration):$.dts=0,a?(e>=w&&(v++,w<0&&(w=0),w+=a.sample_counts[v]),$.cts=t.samples[e].dts+a.sample_offsets[v]):$.cts=$.dts,o?(e==o.sample_numbers[S]-1?($.is_sync=!0,S++):($.is_sync=!1,$.degradation_priority=0),h&&h.entries[U].sample_delta+k==e+1&&($.subsamples=h.entries[U].subsamples,k+=h.entries[U].sample_delta,U++)):$.is_sync=!0,u.process_sdtp(t.mdia.minf.stbl.sdtp,$,$.number),$.degradation_priority=p?p.priority[e]:0,h&&h.entries[U].sample_delta+k==e&&($.subsamples=h.entries[U].subsamples,k+=h.entries[U].sample_delta),(d.length>0||c.length>0)&&u.setSampleGroupProperties(t,$,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)}},u.prototype.updateSampleLists=function(){var t,e,i,r,n,s,a,o,l,h,c,p,f,m,g;if(void 0!==this.moov)for(;this.lastMoofIndex0&&u.initSampleGroups(p,c,c.sbgps,p.mdia.minf.stbl.sgpds,c.sgpds),e=0;e0?m.dts=p.samples[p.samples.length-2].dts+p.samples[p.samples.length-2].duration:(c.tfdt?m.dts=c.tfdt.baseMediaDecodeTime:m.dts=0,p.first_traf_merged=!0),m.cts=m.dts,_.flags&d.TRUN_FLAGS_CTS_OFFSET&&(m.cts=m.dts+_.sample_composition_time_offset[i]),g=a,_.flags&d.TRUN_FLAGS_FLAGS?g=_.sample_flags[i]:0===i&&_.flags&d.TRUN_FLAGS_FIRST_FLAG&&(g=_.first_sample_flags),m.is_sync=!(g>>16&1),m.is_leading=g>>26&3,m.depends_on=g>>24&3,m.is_depended_on=g>>22&3,m.has_redundancy=g>>20&3,m.degradation_priority=65535&g;var y=!!(c.tfhd.flags&d.TFHD_FLAG_BASE_DATA_OFFSET),b=!!(c.tfhd.flags&d.TFHD_FLAG_DEFAULT_BASE_IS_MOOF),x=!!(_.flags&d.TRUN_FLAGS_DATA_OFFSET),w=0;w=y?c.tfhd.base_data_offset:b||0===e?h.start:o,m.offset=0===e&&0===i?x?w+_.data_offset:w:o,o=m.offset+m.size,(c.sbgps.length>0||c.sgpds.length>0||p.mdia.minf.stbl.sbgps.length>0||p.mdia.minf.stbl.sgpds.length>0)&&u.setSampleGroupProperties(p,m,m.number_in_traf,c.sample_groups_info)}}if(c.subs){p.has_fragment_subsamples=!0;var v=c.first_sample_index;for(e=0;e-1))return null;var o=(i=this.stream.buffers[s]).byteLength-(r.offset+r.alreadyRead-i.fileStart);if(r.size-r.alreadyRead<=o)return n.debug("ISOFile","Getting sample #"+e+" data (alreadyRead: "+r.alreadyRead+" offset: "+(r.offset+r.alreadyRead-i.fileStart)+" read size: "+(r.size-r.alreadyRead)+" full size: "+r.size+")"),a.memcpy(r.data.buffer,r.alreadyRead,i,r.offset+r.alreadyRead-i.fileStart,r.size-r.alreadyRead),i.usedBytes+=r.size-r.alreadyRead,this.stream.logBufferLevel(),r.alreadyRead=r.size,r;if(0===o)return null;n.debug("ISOFile","Getting sample #"+e+" partial data (alreadyRead: "+r.alreadyRead+" offset: "+(r.offset+r.alreadyRead-i.fileStart)+" read size: "+o+" full size: "+r.size+")"),a.memcpy(r.data.buffer,r.alreadyRead,i,r.offset+r.alreadyRead-i.fileStart,o),r.alreadyRead+=o,i.usedBytes+=o,this.stream.logBufferLevel()}},u.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},u.prototype.getAllocatedSampleDataSize=function(){return this.samplesDataSize},u.prototype.getCodecs=function(){var t,e="";for(t=0;t0&&(e+=","),e+=this.moov.traks[t].mdia.minf.stbl.stsd.entries[0].getCodec()}return e},u.prototype.getTrexById=function(t){var e;if(!this.moov||!this.moov.mvex)return null;for(e=0;e0&&(i.protection=s.ipro.protections[s.iinf.item_infos[t].protection_index-1]),s.iinf.item_infos[t].item_type?i.type=s.iinf.item_infos[t].item_type:i.type="mime",i.content_type=s.iinf.item_infos[t].content_type,i.content_encoding=s.iinf.item_infos[t].content_encoding;if(s.iloc)for(t=0;t0&&c.property_index-1-1))return null;var l=(e=this.stream.buffers[o]).byteLength-(s.offset+s.alreadyRead-e.fileStart);if(!(s.length-s.alreadyRead<=l))return n.debug("ISOFile","Getting item #"+t+" extent #"+r+" partial data (alreadyRead: "+s.alreadyRead+" offset: "+(s.offset+s.alreadyRead-e.fileStart)+" read size: "+l+" full extent size: "+s.length+" full item size: "+i.size+")"),a.memcpy(i.data.buffer,i.alreadyRead,e,s.offset+s.alreadyRead-e.fileStart,l),s.alreadyRead+=l,i.alreadyRead+=l,e.usedBytes+=l,this.stream.logBufferLevel(),null;n.debug("ISOFile","Getting item #"+t+" extent #"+r+" data (alreadyRead: "+s.alreadyRead+" offset: "+(s.offset+s.alreadyRead-e.fileStart)+" read size: "+(s.length-s.alreadyRead)+" full extent size: "+s.length+" full item size: "+i.size+")"),a.memcpy(i.data.buffer,i.alreadyRead,e,s.offset+s.alreadyRead-e.fileStart,s.length-s.alreadyRead),e.usedBytes+=s.length-s.alreadyRead,this.stream.logBufferLevel(),i.alreadyRead+=s.length-s.alreadyRead,s.alreadyRead=s.length}}return i.alreadyRead===i.size?i:null},u.prototype.releaseItem=function(t){var e=this.items[t];if(e.data){this.itemsDataSize-=e.size,e.data=null,e.alreadyRead=0;for(var i=0;i0?this.moov.traks[t].samples[0].duration:0),e.push(r)}return e},d.Box.prototype.printHeader=function(t){this.size+=8,this.size>o&&(this.size+=8),"uuid"===this.type&&(this.size+=16),t.log(t.indent+"size:"+this.size),t.log(t.indent+"type:"+this.type)},d.FullBox.prototype.printHeader=function(t){this.size+=4,d.Box.prototype.printHeader.call(this,t),t.log(t.indent+"version:"+this.version),t.log(t.indent+"flags:"+this.flags)},d.Box.prototype.print=function(t){this.printHeader(t)},d.ContainerBox.prototype.print=function(t){this.printHeader(t);for(var e=0;e>8)),t.log(t.indent+"matrix: "+this.matrix.join(", ")),t.log(t.indent+"next_track_id: "+this.next_track_id)},d.tkhdBox.prototype.print=function(t){d.FullBox.prototype.printHeader.call(this,t),t.log(t.indent+"creation_time: "+this.creation_time),t.log(t.indent+"modification_time: "+this.modification_time),t.log(t.indent+"track_id: "+this.track_id),t.log(t.indent+"duration: "+this.duration),t.log(t.indent+"volume: "+(this.volume>>8)),t.log(t.indent+"matrix: "+this.matrix.join(", ")),t.log(t.indent+"layer: "+this.layer),t.log(t.indent+"alternate_group: "+this.alternate_group),t.log(t.indent+"width: "+this.width),t.log(t.indent+"height: "+this.height)};var f={createFile:function(t,e){var i=void 0===t||t,r=new u(e);return r.discardMdatData=!i,r}};t.createFile=f.createFile}(wt);class vt{constructor(t){this.data=new Uint8Array(t),this.idx=0,this.size=t}getData(){if(this.idx!==this.size)throw new Error("Mismatch between size reserved and sized used");return this.data.slice(0,this.idx)}writeUint8(t){this.data.set([t],this.idx),this.idx+=1}writeUint16(t){const e=new Uint16Array(1);e[0]=t;const i=new Uint8Array(e.buffer);this.data.set([i[1],i[0]],this.idx),this.idx+=2}writeUint8Array(t){this.data.set(t,this.idx),this.idx+=t.length}}const St=(t,e,{VideoDecoder:i,EncodedVideoChunk:r,debug:n})=>new Promise(((s,a)=>{n&&console.info("Decoding video from",t);try{const o=wt.createFile();let l;const h=new i({output:t=>{createImageBitmap(t,{resizeQuality:"low"}).then((i=>{e(i),t.close(),h.decodeQueueSize<=0&&setTimeout((()=>{"closed"!==h.state&&(h.close(),s())}),500)}))},error:t=>{console.error(t),a(t)}});o.onReady=t=>{if(t&&t.videoTracks&&t.videoTracks[0]){[{codec:l}]=t.videoTracks,n&&console.info("Video with codec:",l);const e=(t=>{let e,i=7;for(e=0;e{for(let t=0;t{const e=t.body.getReader();let i=0;return e.read().then((function t({done:r,value:n}){if(r)return o.flush(),null;const s=n.buffer;return s.fileStart=i,i+=s.byteLength,o.appendBuffer(s),e.read().then(t)}))}))}catch(t){a(t)}}));class Ut{constructor({src:t,scrollyVideoContainer:e,cover:i=!0,sticky:r=!0,full:n=!0,trackScroll:s=!0,transitionSpeed:a=8,frameThreshold:o=.1,useWebCodecs:l=!0,debug:h=!1}){if("object"!=typeof document)return void console.error("ScrollyVideo must be initiated in a DOM context");if(!e)return void console.error("scrollyVideoContainer must be a valid DOM object");if(!t)return void console.error("Must provide valid video src to ScrollyVideo");if(e instanceof Element)this.container=e;else{if("string"!=typeof e)throw new Error("scrollyVideoContainer must be a valid DOM object");if(this.container=document.getElementById(e),!this.container)throw new Error("scrollyVideoContainer must be a valid DOM object")}this.src=t,this.transitionSpeed=a,this.frameThreshold=o,this.useWebCodecs=l,this.cover=i,this.sticky=r,this.full=n,this.trackScroll=s,this.debug=h,this.video=document.createElement("video"),this.video.src=t,this.video.preload="auto",this.video.tabIndex=0,this.video.autobuffer=!0,this.video.playsInline=!0,this.video.muted=!0,this.video.pause(),this.video.load(),this.container.appendChild(this.video),r&&(this.container.style.display="block",this.container.style.position="sticky",this.container.style.top="0"),n&&(this.container.style.width="100%",this.container.style.height="100vh",this.container.style.overflow="hidden"),i&&this.setCoverStyle(this.video);const d=(new xt).getEngine();this.isSafari="WebKit"===d.name,h&&this.isSafari&&console.info("Safari browser detected"),this.currentTime=0,this.targetTime=0,this.canvas=null,this.context=null,this.frames=[],this.frameRate=0,this.updateScrollPercentage=t=>{const e=this.container.parentNode.getBoundingClientRect(),i=-e.top/(e.height-window.innerHeight);this.debug&&console.info("ScrollyVideo scrolled to",i),this.setTargetTimePercent(i,{jump:t})},this.trackScroll?(window.addEventListener("scroll",this.updateScrollPercentage),this.video.addEventListener("loadedmetadata",(()=>this.updateScrollPercentage(!0)),{once:!0})):this.video.addEventListener("loadedmetadata",(()=>this.setTargetTimePercent(0,{jump:!0})),{once:!0}),this.resize=()=>{this.debug&&console.info("ScrollyVideo resizing..."),this.cover&&this.setCoverStyle(this.canvas||this.video),this.paintCanvasFrame(Math.floor(this.currentTime*this.frameRate))},window.addEventListener("resize",this.resize),this.video.addEventListener("progress",this.resize),this.decodeVideo()}setCoverStyle(t){if(this.cover){t.style.position="absolute",t.style.top="50%",t.style.left="50%",t.style.transform="translate(-50%, -50%)",t.style.minWidth="101%",t.style.minHeight="101%";const{width:e,height:i}=this.container.getBoundingClientRect(),r=t.videoWidth||t.width,n=t.videoHeight||t.height;this.debug&&console.info("Container dimensions:",[e,i]),this.debug&&console.info("Element dimensions:",[r,n]),e/i>r/n?(t.style.width="100%",t.style.height="auto"):(t.style.height="100%",t.style.width="auto")}}decodeVideo(){var t,e,i;this.useWebCodecs&&this.src&&(t=this.src,e=t=>{this.frames.push(t)},i=this.debug,"function"==typeof VideoDecoder&&"function"==typeof EncodedVideoChunk?(i&&console.info("WebCodecs is natively supported, using native version..."),St(t,e,{VideoDecoder:VideoDecoder,EncodedVideoChunk:EncodedVideoChunk,debug:i})):(i&&console.info("WebCodecs is not available in this browser."),Promise.resolve())).catch((()=>{this.debug&&console.error("Error encountered while decoding video"),this.frames=[],this.video.load()})).then((()=>{0!==this.frames.length?(this.frameRate=this.frames.length/this.video.duration,this.debug&&console.info("Received",this.frames.length,"frames"),this.canvas=document.createElement("canvas"),this.context=this.canvas.getContext("2d"),this.video.style.display="none",this.container.appendChild(this.canvas),this.cover&&this.setCoverStyle(this.canvas),this.paintCanvasFrame(Math.floor(this.currentTime*this.frameRate))):this.debug&&console.error("No frames were received from webCodecs")}))}paintCanvasFrame(t){if(this.canvas){const e=this.frames[t];if(e){this.debug&&console.info("Painting frame",t),this.canvas.width=e.width,this.canvas.height=e.height;const{width:i,height:r}=this.container.getBoundingClientRect();i/r>e.width/e.height?(this.canvas.style.width="100%",this.canvas.style.height="auto"):(this.canvas.style.height="100%",this.canvas.style.width="auto"),this.context.drawImage(e,0,0,e.width,e.height)}}}transitionToTargetTime({jump:t,transitionSpeed:e=this.transitionSpeed,easing:i=null}){this.debug&&console.info("Transitioning targetTime:",this.targetTime,"currentTime:",this.currentTime);const r=this.targetTime-this.currentTime,n=Math.abs(r),s=1e3*n,a=r>0,o=({startCurrentTime:r,startTimestamp:l,timestamp:h})=>{const d=(h-l)/s,c=a?this.currentTime>=this.targetTime:this.currentTime<=this.targetTime;if(isNaN(this.targetTime)||Math.abs(this.targetTime-this.currentTime)this.video.duration&&(this.targetTime=this.video.duration),this.targetTime<0&&(this.targetTime=0);const 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r;this.options.extensions.startInline.forEach((function(t){r=t.call({lexer:this},i),"number"==typeof r&&r>=0&&(e=Math.min(e,r))})),e<1/0&&e>=0&&(n=t.substring(0,e+1))}if(i=this.tokenizer.inlineText(n,qe))t=t.substring(i.raw.length),"_"!==i.raw.slice(-1)&&(o=i.raw.slice(-1)),a=!0,r=e[e.length-1],r&&"text"===r.type?(r.raw+=i.raw,r.text+=i.text):e.push(i);else if(t){const e="Infinite loop on byte: "+t.charCodeAt(0);if(this.options.silent){console.error(e);break}throw new Error(e)}}else t=t.substring(i.raw.length),e.push(i);return e}}class Ke{constructor(t){this.options=t||ye}code(t,e,i){const r=(e||"").match(/\S*/)[0];if(this.options.highlight){const e=this.options.highlight(t,r);null!=e&&e!==t&&(i=!0,t=e)}return t=t.replace(/\n$/,"")+"\n",r?'
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    An error occurred:

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    An error occurred:

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i=new Int32Array(t);return a.memcpy(i.buffer,0,this.buffer,this.byteOffset+this.position,t*i.BYTES_PER_ELEMENT),a.arrayToNative(i,null==e?this.endianness:e),this.position+=i.byteLength,i},a.prototype.readInt16Array=function(t,e){t=null==t?this.byteLength-this.position/2:t;var i=new Int16Array(t);return a.memcpy(i.buffer,0,this.buffer,this.byteOffset+this.position,t*i.BYTES_PER_ELEMENT),a.arrayToNative(i,null==e?this.endianness:e),this.position+=i.byteLength,i},a.prototype.readInt8Array=function(t){t=null==t?this.byteLength-this.position:t;var e=new Int8Array(t);return a.memcpy(e.buffer,0,this.buffer,this.byteOffset+this.position,t*e.BYTES_PER_ELEMENT),this.position+=e.byteLength,e},a.prototype.readUint32Array=function(t,e){t=null==t?this.byteLength-this.position/4:t;var i=new Uint32Array(t);return a.memcpy(i.buffer,0,this.buffer,this.byteOffset+this.position,t*i.BYTES_PER_ELEMENT),a.arrayToNative(i,null==e?this.endianness:e),this.position+=i.byteLength,i},a.prototype.readUint16Array=function(t,e){t=null==t?this.byteLength-this.position/2:t;var i=new Uint16Array(t);return a.memcpy(i.buffer,0,this.buffer,this.byteOffset+this.position,t*i.BYTES_PER_ELEMENT),a.arrayToNative(i,null==e?this.endianness:e),this.position+=i.byteLength,i},a.prototype.readUint8Array=function(t){t=null==t?this.byteLength-this.position:t;var e=new Uint8Array(t);return a.memcpy(e.buffer,0,this.buffer,this.byteOffset+this.position,t*e.BYTES_PER_ELEMENT),this.position+=e.byteLength,e},a.prototype.readFloat64Array=function(t,e){t=null==t?this.byteLength-this.position/8:t;var i=new Float64Array(t);return a.memcpy(i.buffer,0,this.buffer,this.byteOffset+this.position,t*i.BYTES_PER_ELEMENT),a.arrayToNative(i,null==e?this.endianness:e),this.position+=i.byteLength,i},a.prototype.readFloat32Array=function(t,e){t=null==t?this.byteLength-this.position/4:t;var i=new Float32Array(t);return a.memcpy(i.buffer,0,this.buffer,this.byteOffset+this.position,t*i.BYTES_PER_ELEMENT),a.arrayToNative(i,null==e?this.endianness:e),this.position+=i.byteLength,i},a.prototype.readInt32=function(t){var e=this._dataView.getInt32(this.position,null==t?this.endianness:t);return this.position+=4,e},a.prototype.readInt16=function(t){var e=this._dataView.getInt16(this.position,null==t?this.endianness:t);return this.position+=2,e},a.prototype.readInt8=function(){var t=this._dataView.getInt8(this.position);return this.position+=1,t},a.prototype.readUint32=function(t){var e=this._dataView.getUint32(this.position,null==t?this.endianness:t);return this.position+=4,e},a.prototype.readUint16=function(t){var e=this._dataView.getUint16(this.position,null==t?this.endianness:t);return this.position+=2,e},a.prototype.readUint8=function(){var t=this._dataView.getUint8(this.position);return this.position+=1,t},a.prototype.readFloat32=function(t){var e=this._dataView.getFloat32(this.position,null==t?this.endianness:t);return this.position+=4,e},a.prototype.readFloat64=function(t){var e=this._dataView.getFloat64(this.position,null==t?this.endianness:t);return this.position+=8,e},a.endianness=new Int8Array(new Int16Array([1]).buffer)[0]>0,a.memcpy=function(t,e,i,r,n){var s=new Uint8Array(t,e,n),a=new Uint8Array(i,r,n);s.set(a)},a.arrayToNative=function(t,e){return e==this.endianness?t:this.flipArrayEndianness(t)},a.nativeToEndian=function(t,e){return this.endianness==e?t:this.flipArrayEndianness(t)},a.flipArrayEndianness=function(t){for(var e=new Uint8Array(t.buffer,t.byteOffset,t.byteLength),i=0;in;r--,n++){var s=e[n];e[n]=e[r],e[r]=s}return t},a.prototype.failurePosition=0,String.fromCharCodeUint8=function(t){for(var e=[],i=0;i>16),this.writeUint8((65280&t)>>8),this.writeUint8(255&t)},a.prototype.adjustUint32=function(t,e){var i=this.position;this.seek(t),this.writeUint32(e),this.seek(i)},a.prototype.mapInt32Array=function(t,e){this._realloc(4*t);var i=new Int32Array(this._buffer,this.byteOffset+this.position,t);return a.arrayToNative(i,null==e?this.endianness:e),this.position+=4*t,i},a.prototype.mapInt16Array=function(t,e){this._realloc(2*t);var i=new Int16Array(this._buffer,this.byteOffset+this.position,t);return a.arrayToNative(i,null==e?this.endianness:e),this.position+=2*t,i},a.prototype.mapInt8Array=function(t){this._realloc(1*t);var e=new Int8Array(this._buffer,this.byteOffset+this.position,t);return this.position+=1*t,e},a.prototype.mapUint32Array=function(t,e){this._realloc(4*t);var i=new Uint32Array(this._buffer,this.byteOffset+this.position,t);return a.arrayToNative(i,null==e?this.endianness:e),this.position+=4*t,i},a.prototype.mapUint16Array=function(t,e){this._realloc(2*t);var i=new Uint16Array(this._buffer,this.byteOffset+this.position,t);return a.arrayToNative(i,null==e?this.endianness:e),this.position+=2*t,i},a.prototype.mapFloat64Array=function(t,e){this._realloc(8*t);var i=new Float64Array(this._buffer,this.byteOffset+this.position,t);return a.arrayToNative(i,null==e?this.endianness:e),this.position+=8*t,i},a.prototype.mapFloat32Array=function(t,e){this._realloc(4*t);var i=new Float32Array(this._buffer,this.byteOffset+this.position,t);return a.arrayToNative(i,null==e?this.endianness:e),this.position+=4*t,i};var l=function(t){this.buffers=[],this.bufferIndex=-1,t&&(this.insertBuffer(t),this.bufferIndex=0)};(l.prototype=new a(new ArrayBuffer,0,a.BIG_ENDIAN)).initialized=function(){var t;return this.bufferIndex>-1||(this.buffers.length>0?0===(t=this.buffers[0]).fileStart?(this.buffer=t,this.bufferIndex=0,n.debug("MultiBufferStream","Stream ready for parsing"),!0):(n.warn("MultiBufferStream","The first buffer should have a fileStart of 0"),this.logBufferLevel(),!1):(n.warn("MultiBufferStream","No buffer to start parsing from"),this.logBufferLevel(),!1))},ArrayBuffer.concat=function(t,e){n.debug("ArrayBuffer","Trying to create a new buffer of size: "+(t.byteLength+e.byteLength));var i=new Uint8Array(t.byteLength+e.byteLength);return i.set(new Uint8Array(t),0),i.set(new Uint8Array(e),t.byteLength),i.buffer},l.prototype.reduceBuffer=function(t,e,i){var r;return(r=new Uint8Array(i)).set(new Uint8Array(t,e,i)),r.buffer.fileStart=t.fileStart+e,r.buffer.usedBytes=0,r.buffer},l.prototype.insertBuffer=function(t){for(var e=!0,i=0;ir.byteLength){this.buffers.splice(i,1),i--;continue}n.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)),n.debug("MultiBufferStream","Appending new buffer (fileStart: "+t.fileStart+" - Length: "+t.byteLength+")"),this.buffers.splice(i,0,t),0===i&&(this.buffer=t);e=!1;break}if(t.fileStart0)){e=!1;break}t=this.reduceBuffer(t,s,a)}}e&&(n.debug("MultiBufferStream","Appending new buffer (fileStart: "+t.fileStart+" - Length: "+t.byteLength+")"),this.buffers.push(t),0===i&&(this.buffer=t))},l.prototype.logBufferLevel=function(t){var e,i,r,s,a,o=[],l="";for(r=0,s=0,e=0;e0&&(l+=a.end-1+"]");var h=t?n.info:n.debug;0===this.buffers.length?h("MultiBufferStream","No more buffer in memory"):h("MultiBufferStream",this.buffers.length+" stored buffer(s) ("+r+"/"+s+" bytes), continuous ranges: "+l)},l.prototype.cleanBuffers=function(){var t,e;for(t=0;t"+this.buffer.byteLength+")"),!0}return!1}return!1},l.prototype.findPosition=function(t,e,i){var r,s=null,a=-1;for(r=!0===t?0:this.bufferIndex;r=e?(n.debug("MultiBufferStream","Found position in existing buffer #"+a),a):-1},l.prototype.findEndContiguousBuf=function(t){var e,i,r,n=void 0!==t?t:this.bufferIndex;if(i=this.buffers[n],this.buffers.length>n+1)for(e=n+1;e>3;return 31===r&&i.data.length>=2&&(r=32+((7&i.data[0])<<3)+((224&i.data[1])>>5)),r}return null},i.DecoderConfigDescriptor=function(t){i.Descriptor.call(this,4,t)},i.DecoderConfigDescriptor.prototype=new i.Descriptor,i.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)},i.DecoderSpecificInfo=function(t){i.Descriptor.call(this,5,t)},i.DecoderSpecificInfo.prototype=new i.Descriptor,i.SLConfigDescriptor=function(t){i.Descriptor.call(this,6,t)},i.SLConfigDescriptor.prototype=new i.Descriptor,this};t.MPEG4DescriptorParser=h;var d={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(){d.FullBox.prototype=new d.Box,d.ContainerBox.prototype=new d.Box,d.SampleEntry.prototype=new d.Box,d.TrackGroupTypeBox.prototype=new d.FullBox,d.BASIC_BOXES.forEach((function(t){d.createBoxCtor(t)})),d.FULL_BOXES.forEach((function(t){d.createFullBoxCtor(t)})),d.CONTAINER_BOXES.forEach((function(t){d.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){d.Box.call(this,t,e,i),this.flags=0,this.version=0},ContainerBox:function(t,e,i){d.Box.call(this,t,e,i),this.boxes=[]},SampleEntry:function(t,e,i,r){d.ContainerBox.call(this,t,e),this.hdr_size=i,this.start=r},SampleGroupEntry:function(t){this.grouping_type=t},TrackGroupTypeBox:function(t,e){d.FullBox.call(this,t,e)},createBoxCtor:function(t,e){d.boxCodes.push(t),d[t+"Box"]=function(e){d.Box.call(this,t,e)},d[t+"Box"].prototype=new d.Box,e&&(d[t+"Box"].prototype.parse=e)},createFullBoxCtor:function(t,e){d[t+"Box"]=function(e){d.FullBox.call(this,t,e)},d[t+"Box"].prototype=new d.FullBox,d[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;ii?(n.error("BoxParser","Box of type '"+c+"' has a size "+h+" greater than its container size "+i),{code:d.ERR_NOT_ENOUGH_DATA,type:c,size:h,hdr_size:l,start:o}):o+h>t.getEndPosition()?(t.seek(o),n.info("BoxParser","Not enough data in stream to parse the entire '"+c+"' box"),{code:d.ERR_NOT_ENOUGH_DATA,type:c,size:h,hdr_size:l,start:o}):e?{code:d.OK,type:c,size:h,hdr_size:l,start:o}:(d[c+"Box"]?r=new d[c+"Box"](h):"uuid"!==c?(n.warn("BoxParser","Unknown box type: '"+c+"'"),(r=new d.Box(c,h)).has_unparsed_data=!0):d.UUIDBoxes[a]?r=new d.UUIDBoxes[a](h):(n.warn("BoxParser","Unknown uuid type: '"+a+"'"),(r=new d.Box(c,h)).uuid=a,r.has_unparsed_data=!0),r.hdr_size=l,r.start=o,r.write===d.Box.prototype.write&&"mdat"!==r.type&&(n.info("BoxParser","'"+p+"' box writing not yet implemented, keeping unparsed data in memory for later write"),r.parseDataAndRewind(t)),r.parse(t),(s=t.getPosition()-(r.start+r.size))<0?(n.warn("BoxParser","Parsing of box '"+p+"' did not read the entire indicated box data size (missing "+-s+" bytes), seeking forward"),t.seek(r.start+r.size)):s>0&&(n.error("BoxParser","Parsing of box '"+p+"' read "+s+" more bytes than the indicated box data size, seeking backwards"),t.seek(r.start+r.size)),{code:d.OK,box:r,size:r.size})},d.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)},d.Box.prototype.parseDataAndRewind=function(t){this.data=t.readUint8Array(this.size-this.hdr_size),t.position-=this.size-this.hdr_size},d.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},d.FullBox.prototype.parseFullHeader=function(t){this.version=t.readUint8(),this.flags=t.readUint24(),this.hdr_size+=4},d.FullBox.prototype.parse=function(t){this.parseFullHeader(t),this.data=t.readUint8Array(this.size-this.hdr_size)},d.ContainerBox.prototype.parse=function(t){for(var e,i;t.getPosition()>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)},d.SAMPLE_ENTRY_TYPE_VISUAL="Visual",d.SAMPLE_ENTRY_TYPE_AUDIO="Audio",d.SAMPLE_ENTRY_TYPE_HINT="Hint",d.SAMPLE_ENTRY_TYPE_METADATA="Metadata",d.SAMPLE_ENTRY_TYPE_SUBTITLE="Subtitle",d.SAMPLE_ENTRY_TYPE_SYSTEM="System",d.SAMPLE_ENTRY_TYPE_TEXT="Text",d.SampleEntry.prototype.parseHeader=function(t){t.readUint8Array(6),this.data_reference_index=t.readUint16(),this.hdr_size+=8},d.SampleEntry.prototype.parse=function(t){this.parseHeader(t),this.data=t.readUint8Array(this.size-this.hdr_size)},d.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},d.SampleEntry.prototype.parseFooter=function(t){d.ContainerBox.prototype.parse.call(this,t)},d.createMediaSampleEntryCtor(d.SAMPLE_ENTRY_TYPE_HINT),d.createMediaSampleEntryCtor(d.SAMPLE_ENTRY_TYPE_METADATA),d.createMediaSampleEntryCtor(d.SAMPLE_ENTRY_TYPE_SUBTITLE),d.createMediaSampleEntryCtor(d.SAMPLE_ENTRY_TYPE_SYSTEM),d.createMediaSampleEntryCtor(d.SAMPLE_ENTRY_TYPE_TEXT),d.createMediaSampleEntryCtor(d.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)})),d.createMediaSampleEntryCtor(d.SAMPLE_ENTRY_TYPE_AUDIO,(function(t){this.parseHeader(t),t.readUint32Array(2),this.channel_count=t.readUint16(),this.samplesize=t.readUint16(),t.readUint16(),t.readUint16(),this.samplerate=t.readUint32()/65536,this.parseFooter(t)})),d.createSampleEntryCtor(d.SAMPLE_ENTRY_TYPE_VISUAL,"avc1"),d.createSampleEntryCtor(d.SAMPLE_ENTRY_TYPE_VISUAL,"avc2"),d.createSampleEntryCtor(d.SAMPLE_ENTRY_TYPE_VISUAL,"avc3"),d.createSampleEntryCtor(d.SAMPLE_ENTRY_TYPE_VISUAL,"avc4"),d.createSampleEntryCtor(d.SAMPLE_ENTRY_TYPE_VISUAL,"av01"),d.createSampleEntryCtor(d.SAMPLE_ENTRY_TYPE_VISUAL,"hvc1"),d.createSampleEntryCtor(d.SAMPLE_ENTRY_TYPE_VISUAL,"hev1"),d.createSampleEntryCtor(d.SAMPLE_ENTRY_TYPE_AUDIO,"mp4a"),d.createSampleEntryCtor(d.SAMPLE_ENTRY_TYPE_AUDIO,"ac-3"),d.createSampleEntryCtor(d.SAMPLE_ENTRY_TYPE_AUDIO,"ec-3"),d.createEncryptedSampleEntryCtor(d.SAMPLE_ENTRY_TYPE_VISUAL,"encv"),d.createEncryptedSampleEntryCtor(d.SAMPLE_ENTRY_TYPE_AUDIO,"enca"),d.createEncryptedSampleEntryCtor(d.SAMPLE_ENTRY_TYPE_SUBTITLE,"encu"),d.createEncryptedSampleEntryCtor(d.SAMPLE_ENTRY_TYPE_SYSTEM,"encs"),d.createEncryptedSampleEntryCtor(d.SAMPLE_ENTRY_TYPE_TEXT,"enct"),d.createEncryptedSampleEntryCtor(d.SAMPLE_ENTRY_TYPE_METADATA,"encm"),d.createBoxCtor("a1lx",(function(t){var e=16*(1+(1&(1&t.readUint8())));this.layer_size=[];for(var i=0;i<3;i++)this.layer_size[i]=16==e?t.readUint16():t.readUint32()})),d.createBoxCtor("a1op",(function(t){this.op_index=t.readUint8()})),d.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)})),d.createBoxCtor("av1C",(function(t){var e=t.readUint8();if(e>>7&!1)n.error("av1C marker problem");else if(this.version=127&e,1===this.version)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){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 n.error("av1C reserved_2 parsing problem");var i=this.size-this.hdr_size-4;this.configOBUs=t.readUint8Array(i)}else n.error("av1C reserved_1 parsing problem");else n.error("av1C version "+this.version+" not supported")})),d.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;e0&&(this.ext=t.readUint8Array(i))})),d.createBoxCtor("btrt",(function(t){this.bufferSizeDB=t.readUint32(),this.maxBitrate=t.readUint32(),this.avgBitrate=t.readUint32()})),d.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()})),d.createBoxCtor("clli",(function(t){this.max_content_light_level=t.readUint16(),this.max_pic_average_light_level=t.readUint16()})),d.createFullBoxCtor("co64",(function(t){var e,i;if(e=t.readUint32(),this.chunk_offsets=[],0===this.version)for(i=0;i>7}else("rICC"===this.colour_type||"prof"===this.colour_type)&&(this.ICC_profile=t.readUint8Array(this.size-4))})),d.createFullBoxCtor("cprt",(function(t){this.parseLanguage(t),this.notice=t.readCString()})),d.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())})),d.createFullBoxCtor("ctts",(function(t){var e,i;if(e=t.readUint32(),this.sample_counts=[],this.sample_offsets=[],0===this.version)for(i=0;i>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|r>>5&7})),d.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>6,r.bsid=n>>1&31,r.bsmod=(1&n)<<4|s>>4&15,r.acmod=s>>1&7,r.lfeon=1&s,r.num_dep_sub=a>>1&15,r.num_dep_sub>0&&(r.chan_loc=(1&a)<<8|t.readUint8())}})),d.createFullBoxCtor("dfLa",(function(t){var e=[],i=["STREAMINFO","PADDING","APPLICATION","SEEKTABLE","VORBIS_COMMENT","CUESHEET","PICTURE","RESERVED"];for(this.parseFullHeader(t);;){var r=t.readUint8(),n=Math.min(127&r,i.length-1);if(n?t.readUint8Array(t.readUint24()):(t.readUint8Array(13),this.samplerate=t.readUint32()>>12,t.readUint8Array(20)),e.push(i[n]),128&r)break}this.numMetadataBlocks=e.length+" ("+e.join(", ")+")"})),d.createBoxCtor("dimm",(function(t){this.bytessent=t.readUint64()})),d.createBoxCtor("dmax",(function(t){this.time=t.readUint32()})),d.createBoxCtor("dmed",(function(t){this.bytessent=t.readUint64()})),d.createFullBoxCtor("dref",(function(t){var e,i;this.entries=[];for(var r=t.readUint32(),n=0;n=4;)this.compatible_brands[i]=t.readString(4),e-=4,i++})),d.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)))})),d.createBoxCtor("hvcC",(function(t){var e,i,r,n;this.configurationVersion=t.readUint8(),n=t.readUint8(),this.general_profile_space=n>>6,this.general_tier_flag=(32&n)>>5,this.general_profile_idc=31&n,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(),n=t.readUint8(),this.constantFrameRate=n>>6,this.numTemporalLayers=(13&n)>>3,this.temporalIdNested=(4&n)>>2,this.lengthSizeMinusOne=3&n,this.nalu_arrays=[];var s=t.readUint8();for(e=0;e>7,a.nalu_type=63&n;var o=t.readUint16();for(i=0;i>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 i=0;if(this.version<2)i=t.readUint16();else{if(2!==this.version)throw"version of iloc box not supported";i=t.readUint32()}for(var r=0;r>7,this.axis=1&e})),d.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)return this.extension_type=t.readString(4),n.warn("BoxParser","Cannot parse extension type"),void t.seek(this.start+this.size);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()))})),d.createFullBoxCtor("ipma",(function(t){var e,i;for(entry_count=t.readUint32(),this.associations=[],e=0;e>7==1,1&this.flags?a.property_index=(127&s)<<8|t.readUint8():a.property_index=127&s}}})),d.createFullBoxCtor("iref",(function(t){var e,i;for(this.references=[];t.getPosition()>7,r.assignment_type=127&s,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:n.warn("BoxParser","Unknown leva assignement type")}}})),d.createBoxCtor("lsel",(function(t){this.layer_id=t.readUint16()})),d.createBoxCtor("maxr",(function(t){this.period=t.readUint32(),this.bytes=t.readUint32()})),d.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()})),d.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()})),d.createFullBoxCtor("mehd",(function(t){1&this.flags&&(n.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()})),d.createFullBoxCtor("meta",(function(t){this.boxes=[],d.ContainerBox.prototype.parse.call(this,t)})),d.createFullBoxCtor("mfhd",(function(t){this.sequence_number=t.readUint32()})),d.createFullBoxCtor("mfro",(function(t){this._size=t.readUint32()})),d.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()})),d.createBoxCtor("npck",(function(t){this.packetssent=t.readUint32()})),d.createBoxCtor("nump",(function(t){this.packetssent=t.readUint64()})),d.createFullBoxCtor("padb",(function(t){var e=t.readUint32();this.padbits=[];for(var i=0;i0){var e=t.readUint32();this.kid=[];for(var i=0;i0&&(this.data=t.readUint8Array(r))})),d.createFullBoxCtor("clef",(function(t){this.width=t.readUint32(),this.height=t.readUint32()})),d.createFullBoxCtor("enof",(function(t){this.width=t.readUint32(),this.height=t.readUint32()})),d.createFullBoxCtor("prof",(function(t){this.width=t.readUint32(),this.height=t.readUint32()})),d.createContainerBoxCtor("tapt",null,["clef","prof","enof"]),d.createBoxCtor("rtp ",(function(t){this.descriptionformat=t.readString(4),this.sdptext=t.readString(this.size-this.hdr_size-4)})),d.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>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(),r=0;r>7,this.num_leading_samples=127&e})),d.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)n.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>4,this.skip_byte_block=15&e,this.isProtected=t.readUint8(),this.Per_Sample_IV_Size=t.readUint8(),this.KID=d.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))})),d.createSampleGroupCtor("stsa",(function(t){n.warn("BoxParser","Sample Group type: "+this.grouping_type+" not fully parsed")})),d.createSampleGroupCtor("sync",(function(t){var e=t.readUint8();this.NAL_unit_type=63&e})),d.createSampleGroupCtor("tele",(function(t){var e=t.readUint8();this.level_independently_decodable=e>>7})),d.createSampleGroupCtor("tsas",(function(t){n.warn("BoxParser","Sample Group type: "+this.grouping_type+" not fully parsed")})),d.createSampleGroupCtor("tscl",(function(t){n.warn("BoxParser","Sample Group type: "+this.grouping_type+" not fully parsed")})),d.createSampleGroupCtor("vipr",(function(t){n.warn("BoxParser","Sample Group type: "+this.grouping_type+" not fully parsed")})),d.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>6,this.sample_depends_on[r]=e>>4&3,this.sample_is_depended_on[r]=e>>2&3,this.sample_has_redundancy[r]=3&e})),d.createFullBoxCtor("senc"),d.createFullBoxCtor("sgpd",(function(t){this.grouping_type=t.readString(4),n.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=t.readUint32(),i=0;i>31&1,r.referenced_size=2147483647&n,r.subsegment_duration=t.readUint32(),n=t.readUint32(),r.starts_with_SAP=n>>31&1,r.SAP_type=n>>28&7,r.SAP_delta_time=268435455&n}})),d.SingleItemTypeReferenceBox=function(t,e,i,r){d.Box.call(this,t,e),this.hdr_size=i,this.start=r},d.SingleItemTypeReferenceBox.prototype=new d.Box,d.SingleItemTypeReferenceBox.prototype.parse=function(t){this.from_item_ID=t.readUint16();var e=t.readUint16();this.references=[];for(var i=0;i>4&15,this.sample_sizes[e+1]=15&r}else if(8===this.field_size)for(e=0;e0)for(i=0;i>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=d.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))})),d.createFullBoxCtor("tfdt",(function(t){1==this.version?this.baseMediaDecodeTime=t.readUint64():this.baseMediaDecodeTime=t.readUint32()})),d.createFullBoxCtor("tfhd",(function(t){var e=0;this.track_id=t.readUint32(),this.size-this.hdr_size>e&&this.flags&d.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&d.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&d.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&d.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&d.TFHD_FLAG_SAMPLE_FLAGS?(this.default_sample_flags=t.readUint32(),e+=4):this.default_sample_flags=0})),d.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(),r=0;r>8,t.readUint16(),this.matrix=t.readInt32Array(9),this.width=t.readUint32(),this.height=t.readUint32()})),d.createBoxCtor("tmax",(function(t){this.time=t.readUint32()})),d.createBoxCtor("tmin",(function(t){this.time=t.readUint32()})),d.createBoxCtor("totl",(function(t){this.bytessent=t.readUint32()})),d.createBoxCtor("tpay",(function(t){this.bytessent=t.readUint32()})),d.createBoxCtor("tpyl",(function(t){this.bytessent=t.readUint64()})),d.TrackGroupTypeBox.prototype.parse=function(t){this.parseFullHeader(t),this.track_group_id=t.readUint32()},d.createTrackGroupCtor("msrc"),d.TrackReferenceTypeBox=function(t,e,i,r){d.Box.call(this,t,e),this.hdr_size=i,this.start=r},d.TrackReferenceTypeBox.prototype=new d.Box,d.TrackReferenceTypeBox.prototype.parse=function(t){this.track_ids=t.readUint32Array((this.size-this.hdr_size)/4)},d.trefBox.prototype.parse=function(t){for(var e,i;t.getPosition()e&&this.flags&d.TRUN_FLAGS_DATA_OFFSET?(this.data_offset=t.readInt32(),e+=4):this.data_offset=0,this.size-this.hdr_size>e&&this.flags&d.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;i0&&(this.location=t.readCString())})),d.createUUIDBox("a5d40b30e81411ddba2f0800200c9a66",!0,!1,(function(t){this.LiveServerManifest=t.readString(this.size-this.hdr_size).replace(/&/g,"&").replace(//g,">").replace(/"/g,""").replace(/'/g,"'")})),d.createUUIDBox("d08a4f1810f34a82b6c832d8aba183d3",!0,!1,(function(t){this.system_id=d.parseHex16(t);var e=t.readUint32();e>0&&(this.data=t.readUint8Array(e))})),d.createUUIDBox("a2394f525a9b4f14a2446c427c648df4",!0,!1),d.createUUIDBox("8974dbce7be74c5184f97148f9882554",!0,!1,(function(t){this.default_AlgorithmID=t.readUint24(),this.default_IV_size=t.readUint8(),this.default_KID=d.parseHex16(t)})),d.createUUIDBox("d4807ef2ca3946958e5426cb9e46a79f",!0,!1,(function(t){this.fragment_count=t.readUint8(),this.entries=[];for(var e=0;e>4,this.chromaSubsampling=e>>1&7,this.videoFullRangeFlag=1&e,this.colourPrimaries=t.readUint8(),this.transferCharacteristics=t.readUint8(),this.matrixCoefficients=t.readUint8(),this.codecIntializationDataSize=t.readUint16(),this.codecIntializationData=t.readUint8Array(this.codecIntializationDataSize)):(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))})),d.createBoxCtor("vttC",(function(t){this.text=t.readString(this.size-this.hdr_size)})),d.SampleEntry.prototype.isVideo=function(){return!1},d.SampleEntry.prototype.isAudio=function(){return!1},d.SampleEntry.prototype.isSubtitle=function(){return!1},d.SampleEntry.prototype.isMetadata=function(){return!1},d.SampleEntry.prototype.isHint=function(){return!1},d.SampleEntry.prototype.getCodec=function(){return this.type.replace(".","")},d.SampleEntry.prototype.getWidth=function(){return""},d.SampleEntry.prototype.getHeight=function(){return""},d.SampleEntry.prototype.getChannelCount=function(){return""},d.SampleEntry.prototype.getSampleRate=function(){return""},d.SampleEntry.prototype.getSampleSize=function(){return""},d.VisualSampleEntry.prototype.isVideo=function(){return!0},d.VisualSampleEntry.prototype.getWidth=function(){return this.width},d.VisualSampleEntry.prototype.getHeight=function(){return this.height},d.AudioSampleEntry.prototype.isAudio=function(){return!0},d.AudioSampleEntry.prototype.getChannelCount=function(){return this.channel_count},d.AudioSampleEntry.prototype.getSampleRate=function(){return this.samplerate},d.AudioSampleEntry.prototype.getSampleSize=function(){return this.samplesize},d.SubtitleSampleEntry.prototype.isSubtitle=function(){return!0},d.MetadataSampleEntry.prototype.isMetadata=function(){return!0},d.decimalToHex=function(t,e){var i=Number(t).toString(16);for(e=null==e?e=2:e;i.length>=1;e+=d.decimalToHex(r,0),e+=".",0===this.hvcC.general_tier_flag?e+="L":e+="H",e+=this.hvcC.general_level_idc;var n=!1,s="";for(t=5;t>=0;t--)(this.hvcC.general_constraint_indicator[t]||n)&&(s="."+d.decimalToHex(this.hvcC.general_constraint_indicator[t],0)+s,n=!0);e+=s}return e},d.mp4aSampleEntry.prototype.getCodec=function(){var t=d.SampleEntry.prototype.getCodec.call(this);if(this.esds&&this.esds.esd){var e=this.esds.esd.getOTI(),i=this.esds.esd.getAudioConfig();return t+"."+d.decimalToHex(e)+(i?"."+i:"")}return t},d.stxtSampleEntry.prototype.getCodec=function(){var t=d.SampleEntry.prototype.getCodec.call(this);return this.mime_format?t+"."+this.mime_format:t},d.av01SampleEntry.prototype.getCodec=function(){var t,e=d.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},d.Box.prototype.writeHeader=function(t,e){this.size+=8,this.size>o&&(this.size+=8),"uuid"===this.type&&(this.size+=16),n.debug("BoxWriter","Writing box "+this.type+" of size: "+this.size+" at position "+t.getPosition()+(e||"")),this.size>o?t.writeUint32(1):(this.sizePosition=t.getPosition(),t.writeUint32(this.size)),t.writeString(this.type,null,4),"uuid"===this.type&&t.writeUint8Array(this.uuid),this.size>o&&t.writeUint64(this.size)},d.FullBox.prototype.writeHeader=function(t){this.size+=4,d.Box.prototype.writeHeader.call(this,t," v="+this.version+" f="+this.flags),t.writeUint8(this.version),t.writeUint24(this.flags)},d.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))},d.ContainerBox.prototype.write=function(t){this.size=0,this.writeHeader(t);for(var e=0;e=2&&t.writeUint32(this.default_sample_description_index),t.writeUint32(this.entries.length),e=0;e0)for(e=0;e+1e?1:0,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)},d.tfhdBox.prototype.write=function(t){this.version=0,this.size=4,this.flags&d.TFHD_FLAG_BASE_DATA_OFFSET&&(this.size+=8),this.flags&d.TFHD_FLAG_SAMPLE_DESC&&(this.size+=4),this.flags&d.TFHD_FLAG_SAMPLE_DUR&&(this.size+=4),this.flags&d.TFHD_FLAG_SAMPLE_SIZE&&(this.size+=4),this.flags&d.TFHD_FLAG_SAMPLE_FLAGS&&(this.size+=4),this.writeHeader(t),t.writeUint32(this.track_id),this.flags&d.TFHD_FLAG_BASE_DATA_OFFSET&&t.writeUint64(this.base_data_offset),this.flags&d.TFHD_FLAG_SAMPLE_DESC&&t.writeUint32(this.default_sample_description_index),this.flags&d.TFHD_FLAG_SAMPLE_DUR&&t.writeUint32(this.default_sample_duration),this.flags&d.TFHD_FLAG_SAMPLE_SIZE&&t.writeUint32(this.default_sample_size),this.flags&d.TFHD_FLAG_SAMPLE_FLAGS&&t.writeUint32(this.default_sample_flags)},d.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)},d.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)},d.trunBox.prototype.write=function(t){this.version=0,this.size=4,this.flags&d.TRUN_FLAGS_DATA_OFFSET&&(this.size+=4),this.flags&d.TRUN_FLAGS_FIRST_FLAG&&(this.size+=4),this.flags&d.TRUN_FLAGS_DURATION&&(this.size+=4*this.sample_duration.length),this.flags&d.TRUN_FLAGS_SIZE&&(this.size+=4*this.sample_size.length),this.flags&d.TRUN_FLAGS_FLAGS&&(this.size+=4*this.sample_flags.length),this.flags&d.TRUN_FLAGS_CTS_OFFSET&&(this.size+=4*this.sample_composition_time_offset.length),this.writeHeader(t),t.writeUint32(this.sample_count),this.flags&d.TRUN_FLAGS_DATA_OFFSET&&(this.data_offset_position=t.getPosition(),t.writeInt32(this.data_offset)),this.flags&d.TRUN_FLAGS_FIRST_FLAG&&t.writeUint32(this.first_sample_flags);for(var e=0;e-1||t[i]instanceof d.Box||e[i]instanceof d.Box||void 0===t[i]||void 0===e[i]||"function"==typeof t[i]||"function"==typeof e[i]||t.subBoxNames&&t.subBoxNames.indexOf(i.slice(0,4))>-1||e.subBoxNames&&e.subBoxNames.indexOf(i.slice(0,4))>-1||"data"===i||"start"===i||"size"===i||"creation_time"===i||"modification_time"===i||d.DIFF_PRIMITIVE_ARRAY_PROP_NAMES.indexOf(i)>-1||t[i]===e[i]))return!1;return!0},d.boxEqual=function(t,e){if(!d.boxEqualFields(t,e))return!1;for(var i=0;i1)for(e=1;e-1&&this.fragmentedTracks.splice(e,1)},u.prototype.setExtractionOptions=function(t,e,i){var r=this.getTrackById(t);if(r){var n={};this.extractedTracks.push(n),n.id=t,n.user=e,n.trak=r,r.nextSample=0,n.nb_samples=1e3,n.samples=[],i&&i.nbSamples&&(n.nb_samples=i.nbSamples)}},u.prototype.unsetExtractionOptions=function(t){for(var e=-1,i=0;i-1&&this.extractedTracks.splice(e,1)},u.prototype.parse=function(){var t,e;if(!this.restoreParsePosition||this.restoreParsePosition())for(;;){if(this.hasIncompleteMdat&&this.hasIncompleteMdat()){if(this.processIncompleteMdat())continue;return}if(this.saveParsePosition&&this.saveParsePosition(),(t=d.parseOneBox(this.stream,false)).code===d.ERR_NOT_ENOUGH_DATA){if(this.processIncompleteBox){if(this.processIncompleteBox(t))continue;return}return}var i;switch(i="uuid"!==(e=t.box).type?e.type:e.uuid,this.boxes.push(e),i){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[i]&&n.warn("ISOFile","Duplicate Box of type: "+i+", overriding previous occurrence"),this[i]=e}this.updateUsedBytes&&this.updateUsedBytes(e,t)}},u.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?(n.warn("ISOFile","Ignoring empty buffer (fileStart: "+t.fileStart+")"),this.stream.logBufferLevel(),!1):(n.info("ISOFile","Processing buffer (fileStart: "+t.fileStart+")"),t.usedBytes=0,this.stream.insertBuffer(t),this.stream.logBufferLevel(),!!this.stream.initialized()||(n.warn("ISOFile","Not ready to start parsing"),!1))},u.prototype.appendBuffer=function(t,e){var i;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.readySent&&(this.readySent=!0,this.onReady(this.getInfo())),this.processSamples(e),this.nextSeekPosition?(i=this.nextSeekPosition,this.nextSeekPosition=void 0):i=this.nextParsePosition,this.stream.getEndFilePositionAfter&&(i=this.stream.getEndFilePositionAfter(i))):i=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&&(n.info("ISOFile","Done processing buffer (fileStart: "+t.fileStart+") - next buffer to fetch should have a fileStart position of "+i),this.stream.logBufferLevel(),this.stream.cleanBuffers(),this.stream.logBufferLevel(!0),n.info("ISOFile","Sample data size in memory: "+this.getAllocatedSampleDataSize())),i},u.prototype.getInfo=function(){var t,e,i,r,n,s={},a=new Date("1904-01-01T00:00:00Z").getTime();if(this.moov)for(s.hasMoov=!0,s.duration=this.moov.mvhd.duration,s.timescale=this.moov.mvhd.timescale,s.isFragmented=null!=this.moov.mvex,s.isFragmented&&this.moov.mvex.mehd&&(s.fragment_duration=this.moov.mvex.mehd.fragment_duration),s.isProgressive=this.isProgressive,s.hasIOD=null!=this.moov.iods,s.brands=[],s.brands.push(this.ftyp.major_brand),s.brands=s.brands.concat(this.ftyp.compatible_brands),s.created=new Date(a+1e3*this.moov.mvhd.creation_time),s.modified=new Date(a+1e3*this.moov.mvhd.modification_time),s.tracks=[],s.audioTracks=[],s.videoTracks=[],s.subtitleTracks=[],s.metadataTracks=[],s.hintTracks=[],s.otherTracks=[],t=0;t0?s.mime+='video/mp4; codecs="':s.audioTracks&&s.audioTracks.length>0?s.mime+='audio/mp4; codecs="':s.mime+='application/mp4; codecs="',t=0;t=i.samples.length)&&(n.info("ISOFile","Sending fragmented data on track #"+r.id+" for samples ["+Math.max(0,i.nextSample-r.nb_samples)+","+(i.nextSample-1)+"]"),n.info("ISOFile","Sample data size in memory: "+this.getAllocatedSampleDataSize()),this.onSegment&&this.onSegment(r.id,r.user,r.segmentStream.buffer,i.nextSample,t||i.nextSample>=i.samples.length),r.segmentStream=null,r!==this.fragmentedTracks[e]))break}}if(null!==this.onSamples)for(e=0;e=i.samples.length)&&(n.debug("ISOFile","Sending samples on track #"+a.id+" for sample "+i.nextSample),this.onSamples&&this.onSamples(a.id,a.user,a.samples),a.samples=[],a!==this.extractedTracks[e]))break}}}},u.prototype.getBox=function(t){var e=this.getBoxes(t,!0);return e.length?e[0]:null},u.prototype.getBoxes=function(t,e){var i=[];return u._sweep.call(this,t,i,e),i},u._sweep=function(t,e,i){for(var r in this.type&&this.type==t&&e.push(this),this.boxes){if(e.length&&i)return;u._sweep.call(this.boxes[r],t,e,i)}},u.prototype.getTrackSamplesInfo=function(t){var e=this.getTrackById(t);return e?e.samples:void 0},u.prototype.getTrackSample=function(t,e){var i=this.getTrackById(t);return this.getSample(i,e)},u.prototype.releaseUsedSamples=function(t,e){var i=0,r=this.getTrackById(t);r.lastValidSample||(r.lastValidSample=0);for(var s=r.lastValidSample;st*s.timescale){h=r-1;break}e&&s.is_sync&&(l=r)}for(e&&(h=l),t=i.samples[h].cts,i.nextSample=h;i.samples[h].alreadyRead===i.samples[h].size&&i.samples[h+1];)h++;return a=i.samples[h].offset+i.samples[h].alreadyRead,n.info("ISOFile","Seeking to "+(e?"RAP":"")+" sample #"+i.nextSample+" on track "+i.tkhd.track_id+", time "+n.getDurationString(t,o)+" and offset: "+a),{offset:a,time:t/o}},u.prototype.seek=function(t,e){var i,r,s,a=this.moov,o={offset:1/0,time:1/0};if(this.moov){for(s=0;s-1){o=l;break}switch(o){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",72<<16).set("vertresolution",72<<16).set("frame_count",1).set("compressorname",e.type+" Compressor").set("depth",24),e.avcDecoderConfigRecord){var p=new d.avcCBox,u=new s(e.avcDecoderConfigRecord);p.parse(u),a.addBox(p)}break;case"Audio":n.add("smhd").set("balance",e.balance||0),a.set("channel_count",e.channel_count||2).set("samplesize",e.samplesize||16).set("samplerate",e.samplerate||65536);break;case"Hint":n.add("hmhd");break;case"Subtitle":if(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 d["url Box"]).set("flags",1));var f=n.add("stbl");return f.add("stsd").addEntry(a),f.add("stts").set("sample_counts",[]).set("sample_deltas",[]),f.add("stsc").set("first_chunk",[]).set("samples_per_chunk",[]).set("sample_description_index",[]),f.add("stco").set("chunk_offsets",[]),f.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}},d.Box.prototype.computeSize=function(t){var e=t||new a;e.endianness=a.BIG_ENDIAN,this.write(e)},u.prototype.addSample=function(t,e,i){var r=i||{},n={},s=this.getTrackById(t);if(null!==s){n.number=s.samples.length,n.track_id=s.tkhd.track_id,n.timescale=s.mdia.mdhd.timescale,n.description_index=r.sample_description_index?r.sample_description_index-1:0,n.description=s.mdia.minf.stbl.stsd.entries[n.description_index],n.data=e,n.size=e.byteLength,n.alreadyRead=n.size,n.duration=r.duration||1,n.cts=r.cts||0,n.dts=r.dts||0,n.is_sync=r.is_sync||!1,n.is_leading=r.is_leading||0,n.depends_on=r.depends_on||0,n.is_depended_on=r.is_depended_on||0,n.has_redundancy=r.has_redundancy||0,n.degradation_priority=r.degradation_priority||0,n.offset=0,n.subsamples=r.subsamples,s.samples.push(n),s.samples_size+=n.size,s.samples_duration+=n.duration,s.first_dts||(s.first_dts=r.dts),this.processSamples();var a=this.createSingleSampleMoof(n);return this.addBox(a),a.computeSize(),a.trafs[0].truns[0].data_offset=a.size+8,this.add("mdat").data=new Uint8Array(e),n}},u.prototype.createSingleSampleMoof=function(t){var e=0;e=t.is_sync?1<<25:65536;var i=new d.moofBox;i.add("mfhd").set("sequence_number",this.nextMoofNumber),this.nextMoofNumber++;var r=i.add("traf"),n=this.getTrackById(t.track_id);return r.add("tfhd").set("track_id",t.track_id).set("flags",d.TFHD_FLAG_DEFAULT_BASE_IS_MOOF),r.add("tfdt").set("baseMediaDecodeTime",t.dts-n.first_dts),r.add("trun").set("flags",d.TRUN_FLAGS_DATA_OFFSET|d.TRUN_FLAGS_DURATION|d.TRUN_FLAGS_SIZE|d.TRUN_FLAGS_FLAGS|d.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},u.prototype.lastMoofIndex=0,u.prototype.samplesDataSize=0,u.prototype.resetTables=function(){var t,e,i,r,n,s;for(this.initial_duration=this.moov.mvhd.duration,this.moov.mvhd.duration=0,t=0;t=2&&(l=n[a].grouping_type+"/0",(o=new h(n[a].grouping_type,0)).is_fragment=!0,e.sample_groups_info[l]||(e.sample_groups_info[l]=o))}else for(a=0;a=2&&(l=r[a].grouping_type+"/0",o=new h(r[a].grouping_type,0),t.sample_groups_info[l]||(t.sample_groups_info[l]=o))},u.setSampleGroupProperties=function(t,e,i,r){var n,s;for(n in e.sample_groups=[],r){var a;if(e.sample_groups[n]={},e.sample_groups[n].grouping_type=r[n].grouping_type,e.sample_groups[n].grouping_type_parameter=r[n].grouping_type_parameter,i>=r[n].last_sample_in_run&&(r[n].last_sample_in_run<0&&(r[n].last_sample_in_run=0),r[n].entry_index++,r[n].entry_index<=r[n].sbgp.entries.length-1&&(r[n].last_sample_in_run+=r[n].sbgp.entries[r[n].entry_index].sample_count)),r[n].entry_index<=r[n].sbgp.entries.length-1?e.sample_groups[n].group_description_index=r[n].sbgp.entries[r[n].entry_index].group_description_index:e.sample_groups[n].group_description_index=-1,0!==e.sample_groups[n].group_description_index)a=r[n].fragment_description?r[n].fragment_description:r[n].description,e.sample_groups[n].group_description_index>0?(s=e.sample_groups[n].group_description_index>65535?(e.sample_groups[n].group_description_index>>16)-1:e.sample_groups[n].group_description_index-1,a&&s>=0&&(e.sample_groups[n].description=a.entries[s])):a&&a.version>=2&&a.default_group_description_index>0&&(e.sample_groups[n].description=a.entries[a.default_group_description_index-1])}},u.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))},u.prototype.buildSampleLists=function(){var t,e;for(t=0;tb&&(x++,b<0&&(b=0),b+=s.sample_counts[x]),e>0?(t.samples[e-1].duration=s.sample_deltas[x],t.samples_duration+=t.samples[e-1].duration,$.dts=t.samples[e-1].dts+t.samples[e-1].duration):$.dts=0,a?(e>=w&&(v++,w<0&&(w=0),w+=a.sample_counts[v]),$.cts=t.samples[e].dts+a.sample_offsets[v]):$.cts=$.dts,o?(e==o.sample_numbers[S]-1?($.is_sync=!0,S++):($.is_sync=!1,$.degradation_priority=0),h&&h.entries[U].sample_delta+k==e+1&&($.subsamples=h.entries[U].subsamples,k+=h.entries[U].sample_delta,U++)):$.is_sync=!0,u.process_sdtp(t.mdia.minf.stbl.sdtp,$,$.number),$.degradation_priority=p?p.priority[e]:0,h&&h.entries[U].sample_delta+k==e&&($.subsamples=h.entries[U].subsamples,k+=h.entries[U].sample_delta),(d.length>0||c.length>0)&&u.setSampleGroupProperties(t,$,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)}},u.prototype.updateSampleLists=function(){var t,e,i,r,n,s,a,o,l,h,c,p,f,m,g;if(void 0!==this.moov)for(;this.lastMoofIndex0&&u.initSampleGroups(p,c,c.sbgps,p.mdia.minf.stbl.sgpds,c.sgpds),e=0;e0?m.dts=p.samples[p.samples.length-2].dts+p.samples[p.samples.length-2].duration:(c.tfdt?m.dts=c.tfdt.baseMediaDecodeTime:m.dts=0,p.first_traf_merged=!0),m.cts=m.dts,_.flags&d.TRUN_FLAGS_CTS_OFFSET&&(m.cts=m.dts+_.sample_composition_time_offset[i]),g=a,_.flags&d.TRUN_FLAGS_FLAGS?g=_.sample_flags[i]:0===i&&_.flags&d.TRUN_FLAGS_FIRST_FLAG&&(g=_.first_sample_flags),m.is_sync=!(g>>16&1),m.is_leading=g>>26&3,m.depends_on=g>>24&3,m.is_depended_on=g>>22&3,m.has_redundancy=g>>20&3,m.degradation_priority=65535&g;var y=!!(c.tfhd.flags&d.TFHD_FLAG_BASE_DATA_OFFSET),b=!!(c.tfhd.flags&d.TFHD_FLAG_DEFAULT_BASE_IS_MOOF),x=!!(_.flags&d.TRUN_FLAGS_DATA_OFFSET),w=0;w=y?c.tfhd.base_data_offset:b||0===e?h.start:o,m.offset=0===e&&0===i?x?w+_.data_offset:w:o,o=m.offset+m.size,(c.sbgps.length>0||c.sgpds.length>0||p.mdia.minf.stbl.sbgps.length>0||p.mdia.minf.stbl.sgpds.length>0)&&u.setSampleGroupProperties(p,m,m.number_in_traf,c.sample_groups_info)}}if(c.subs){p.has_fragment_subsamples=!0;var v=c.first_sample_index;for(e=0;e-1))return null;var o=(i=this.stream.buffers[s]).byteLength-(r.offset+r.alreadyRead-i.fileStart);if(r.size-r.alreadyRead<=o)return n.debug("ISOFile","Getting sample #"+e+" data (alreadyRead: "+r.alreadyRead+" offset: "+(r.offset+r.alreadyRead-i.fileStart)+" read size: "+(r.size-r.alreadyRead)+" full size: "+r.size+")"),a.memcpy(r.data.buffer,r.alreadyRead,i,r.offset+r.alreadyRead-i.fileStart,r.size-r.alreadyRead),i.usedBytes+=r.size-r.alreadyRead,this.stream.logBufferLevel(),r.alreadyRead=r.size,r;if(0===o)return null;n.debug("ISOFile","Getting sample #"+e+" partial data (alreadyRead: "+r.alreadyRead+" offset: "+(r.offset+r.alreadyRead-i.fileStart)+" read size: "+o+" full size: "+r.size+")"),a.memcpy(r.data.buffer,r.alreadyRead,i,r.offset+r.alreadyRead-i.fileStart,o),r.alreadyRead+=o,i.usedBytes+=o,this.stream.logBufferLevel()}},u.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},u.prototype.getAllocatedSampleDataSize=function(){return this.samplesDataSize},u.prototype.getCodecs=function(){var t,e="";for(t=0;t0&&(e+=","),e+=this.moov.traks[t].mdia.minf.stbl.stsd.entries[0].getCodec()}return e},u.prototype.getTrexById=function(t){var e;if(!this.moov||!this.moov.mvex)return null;for(e=0;e0&&(i.protection=s.ipro.protections[s.iinf.item_infos[t].protection_index-1]),s.iinf.item_infos[t].item_type?i.type=s.iinf.item_infos[t].item_type:i.type="mime",i.content_type=s.iinf.item_infos[t].content_type,i.content_encoding=s.iinf.item_infos[t].content_encoding;if(s.iloc)for(t=0;t0&&c.property_index-1-1))return null;var l=(e=this.stream.buffers[o]).byteLength-(s.offset+s.alreadyRead-e.fileStart);if(!(s.length-s.alreadyRead<=l))return n.debug("ISOFile","Getting item #"+t+" extent #"+r+" partial data (alreadyRead: "+s.alreadyRead+" offset: "+(s.offset+s.alreadyRead-e.fileStart)+" read size: "+l+" full extent size: "+s.length+" full item size: "+i.size+")"),a.memcpy(i.data.buffer,i.alreadyRead,e,s.offset+s.alreadyRead-e.fileStart,l),s.alreadyRead+=l,i.alreadyRead+=l,e.usedBytes+=l,this.stream.logBufferLevel(),null;n.debug("ISOFile","Getting item #"+t+" extent #"+r+" data (alreadyRead: "+s.alreadyRead+" offset: "+(s.offset+s.alreadyRead-e.fileStart)+" read size: 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e},d.Box.prototype.printHeader=function(t){this.size+=8,this.size>o&&(this.size+=8),"uuid"===this.type&&(this.size+=16),t.log(t.indent+"size:"+this.size),t.log(t.indent+"type:"+this.type)},d.FullBox.prototype.printHeader=function(t){this.size+=4,d.Box.prototype.printHeader.call(this,t),t.log(t.indent+"version:"+this.version),t.log(t.indent+"flags:"+this.flags)},d.Box.prototype.print=function(t){this.printHeader(t)},d.ContainerBox.prototype.print=function(t){this.printHeader(t);for(var e=0;e>8)),t.log(t.indent+"matrix: "+this.matrix.join(", ")),t.log(t.indent+"next_track_id: "+this.next_track_id)},d.tkhdBox.prototype.print=function(t){d.FullBox.prototype.printHeader.call(this,t),t.log(t.indent+"creation_time: "+this.creation_time),t.log(t.indent+"modification_time: "+this.modification_time),t.log(t.indent+"track_id: "+this.track_id),t.log(t.indent+"duration: "+this.duration),t.log(t.indent+"volume: "+(this.volume>>8)),t.log(t.indent+"matrix: "+this.matrix.join(", 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