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node-matroska
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Matroska library written for nodejs
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# node-matroska Matroska library written for nodejs # Fork of node-ebml It is a fork of https://github.com/themasch/node-ebml # VERY Fast parsing Fast and incomplete parsing of a mkv file: (we keep only metadatas) ```js var matroska = require('matroska'); var url="http://download.wavetlan.com/SVV/Media/HTTP/mkv/H264_PCM(mkvmerge).mkv"; matroska.Decoder.parseInfoTagsAndAttachments(url, function(error, document) { if (error) { console.error(error); return; } console.log(document.print()); }); ``` Returns a tree: (format: offset#tagId * node) ```` 0#0 * Document [HttpSource url=http://download.wavetlan.com/SVV/Media/HTTP/mkv/H264_PCM(mkvmerge).mkv] 0#1 * EBML children[size=40] 5#2 * EBMLVersion u[1]=1 9#3 * EBMLReadVersion u[1]=1 13#4 * EBMLMaxIDLength u[1]=4 17#5 * EBMLMaxSizeLength u[1]=8 21#6 * DocType s[8]='matroska' 32#7 * DocTypeVersion u[1]=2 36#8 * DocTypeReadVersion u[1]=2 40#9 * Segment children[size=40316440] 52#10 * SeekHead children[size=52] 57#11 * Seek children[size=15] 60#12 * SeekID b[4]=1549a966 => Info 67#13 * SeekPosition u[2]=4099 [=>#20] 72#14 * Seek children[size=15] 75#15 * SeekID b[4]=1654ae6b => Tracks 82#16 * SeekPosition u[2]=4248 87#17 * Seek children[size=17] 90#18 * SeekID b[4]=1c53bb6b => Cues 97#19 * SeekPosition u[4]=40315034 4151#20 * Info children[size=149] 4157#21 * TimecodeScale u[3]=1000000 4164#22 * MuxingApp 8[35]='libebml v1.2.1 + libmatroska v1.1.1' 4202#23 * WritingApp 8[58]='mkvmerge v4.9.1 ('Ich will') built on Jul 11 2011 23:53:15' 4263#24 * Duration f[4]=388000 4270#25 * DateUTC d[8]=Fri Sep 23 2011 00:33:39 GMT+0200 (Paris, Madrid (heure d’été)) 4281#26 * SegmentUID b[16]=8e9c49d7b307eb148bd386041b43d6ca ``` # COMPLETE parsing Complete parsing of a mkv: ```js var matroska = require('matroska'); var url="http://download.wavetlan.com/SVV/Media/HTTP/mkv/H264_mp3(mkvmerge).mkv"; var decoder = new matroska.Decoder(); decoder.parse(url, function(error, document) { if (error) { console.error(error); return; } console.log(document.print()); }); ``` Returns: ``` 0#0 * Document [FileSource file=G:\Downloads\H264_mp3(mkvmerge).mkv] 0#1 * EBML children[size=40] 5#2 * EBMLVersion u[1]=1 9#3 * EBMLReadVersion u[1]=1 13#4 * EBMLMaxIDLength u[1]=4 17#5 * EBMLMaxSizeLength u[1]=8 21#6 * DocType s[8]='matroska' 32#7 * DocTypeVersion u[1]=2 36#8 * DocTypeReadVersion u[1]=2 40#9 * Segment children[size=3661175] 52#10 * SeekHead children[size=51] 57#11 * Seek children[size=15] 60#12 * SeekID b[4]=1549a966 => Info 67#13 * SeekPosition u[2]=4099 [=>#21] 72#14 * Seek children[size=15] 75#15 * SeekID b[4]=1654ae6b => Tracks 82#16 * SeekPosition u[2]=4248 [=>#28] 87#17 * Seek children[size=16] 90#18 * SeekID b[4]=1c53bb6b => Cues 97#19 * SeekPosition u[3]=3660935 [=>#2109] 103#20 * Void b[4045] 4151#21 * Info children[size=149] 4157#22 * TimecodeScale u[3]=1000000 4164#23 * MuxingApp 8[35]='libebml v1.2.1 + libmatroska v1.1.1' 4202#24 * WritingApp 8[58]='mkvmerge v4.9.1 ('Ich will') built on Jul 11 2011 23:53:15' 4263#25 * Duration f[4]=69956 4270#26 * DateUTC d[8]=Fri Sep 23 2011 00:17:39 GMT+0200 (Paris, Madrid (heure d’été)) 4281#27 * SegmentUID b[16]=bcb1c3b73d5109e98863c2955602b063 4300#28 * Tracks children[size=217] 4306#29 * TrackEntry children[size=142] 4309#30 * TrackNumber u[1]=1 4312#31 * TrackUID u[4]=644805295 4319#32 * TrackType u[1]=1 4322#33 * FlagLacing u[1]=0 4325#34 * MinCache u[1]=1 4329#35 * CodecID s[15]='V_MPEG4/ISO/AVC' 4346#36 * CodecPrivate b[43]=0142c00cffe1001c6742c00c9a740501edff807800c988000003000800000301 4392#37 * DefaultDuration u[4]=41666666 4400#38 * Language s[3]='und' 4407#39 * Video children[size=24] 4409#40 * PixelWidth u[2]=640 4413#41 * PixelHeight u[2]=480 4417#42 * DisplayWidth u[4]=640 4424#43 * DisplayHeight u[4]=806 4431#44 * ContentEncodings children[size=17] 4434#45 * ContentEncoding children[size=14] 4437#46 * ContentCompression children[size=11] 4440#47 * ContentCompAlgo u[1]=3 4444#48 * ContentCompSettings b[1]=00 4448#49 * TrackEntry children[size=69] 4450#50 * TrackNumber u[1]=2 4453#51 * TrackUID u[4]=1713889946 4460#52 * TrackType u[1]=2 4463#53 * CodecID s[9]='A_MPEG/L3' 4474#54 * DefaultDuration u[4]=26122448 4482#55 * Language s[3]='und' 4489#56 * Audio children[size=11] 4491#57 * SamplingFrequency f[4]=22050 4497#58 * Channels u[1]=2 4500#59 * ContentEncodings children[size=17] 4503#60 * ContentEncoding children[size=14] 4506#61 * ContentCompression children[size=11] 4509#62 * ContentCompAlgo u[1]=3 4513#63 * ContentCompSettings b[1]=ff 4517#64 * Void b[1108] 5628#65 * Cluster children[size=290112] 5635#66 * Timecode u[1]=0 5638#67 * SimpleBlock b[1439] 7080#68 * SimpleBlock b[4184] 11267#69 * SimpleBlock b[134] 11404#70 * SimpleBlock b[19] 11425#71 * SimpleBlock b[308] ... 288918#206 * SimpleBlock b[1573] 290494#207 * SimpleBlock b[5243] 295740#208 * Cluster children[size=246364] 295747#209 * Timecode u[2]=4875 295751#210 * SimpleBlock b[2613] ... 3397072#1958 * SimpleBlock b[2136] 3399211#1959 * Cluster children[size=259667] 3399218#1960 * Timecode u[2]=64833 3399222#1961 * SimpleBlock b[3913] ... 3657216#2101 * SimpleBlock b[148] 3657367#2102 * SimpleBlock b[1268] 3658638#2103 * BlockGroup children[size=240] 3658641#2104 * Block b[231] 3658875#2105 * ReferenceBlock i[1]=-42 3658878#2106 * Cluster children[size=2109] 3658884#2107 * Timecode u[3]=69851 3658889#2108 * SimpleBlock b[2095] 3660987#2109 * Cues children[size=228] 3660993#2110 * CuePoint children[size=14] 3660995#2111 * CueTime u[1]=0 3660998#2112 * CueTrackPositions children[size=9] 3661000#2113 * CueTrack u[1]=1 3661003#2114 * CueClusterPosition u[2]=5576 [=>#65] 3661007#2115 * CuePoint children[size=16] 3661009#2116 * CueTime u[2]=4875 3661013#2117 * CueTrackPositions children[size=10] 3661015#2118 * CueTrack u[1]=1 3661018#2119 * CueClusterPosition u[3]=295688 [=>#208] ... 3661199#2175 * CuePoint children[size=16] 3661201#2176 * CueTime u[2]=64833 3661205#2177 * CueTrackPositions children[size=10] 3661207#2178 * CueTrack u[1]=1 3661210#2179 * CueClusterPosition u[3]=3399159 [=>#1959] ``` # Edition of MKV ... it works, samples soon :-)
