| [24626] | 1 | #------------------------------------------------------------------------------
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| 2 | # File: Matroska.pm
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| 3 | #
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| 4 | # Description: Read meta information from Matroska multimedia files
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| 5 | #
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| 6 | # Revisions: 05/26/2010 - P. Harvey Created
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| 7 | #
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| 8 | # References: 1) http://www.matroska.org/technical/specs/index.html
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| 9 | #------------------------------------------------------------------------------
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| 10 |
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| 11 | package Image::ExifTool::Matroska;
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| 12 |
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| 13 | use strict;
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| 14 | use vars qw($VERSION);
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| 15 | use Image::ExifTool qw(:DataAccess :Utils);
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| 16 |
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| 17 | $VERSION = '1.04';
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| 18 |
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| 19 | my %noYes = ( 0 => 'No', 1 => 'Yes' );
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| 20 |
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| 21 | # Matroska tags
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| 22 | # Note: The tag ID's in the Matroska documentation include the length designation
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| 23 | # (the upper bits), which is not included in the tag ID's below
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| 24 | %Image::ExifTool::Matroska::Main = (
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| 25 | GROUPS => { 2 => 'Video' },
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| 26 | NOTES => q{
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| 27 | The following tags are extracted from Matroska multimedia container files.
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| 28 | This container format is used by file types such as MKA, MKV, MKS and WEBM.
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| 29 | For speed, ExifTool extracts tags only up to the first Cluster unless the
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| 30 | Verbose (-v) or Unknown = 2 (-U) option is used. See
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| 31 | L<http://www.matroska.org/technical/specs/index.html> for the official
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| 32 | Matroska specification.
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| 33 | },
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| 34 | # supported Format's: signed, unsigned, float, date, string, utf8
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| 35 | # (or undef by default)
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| 36 | #
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| 37 | # EBML Header
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| 38 | #
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| 39 | 0xa45dfa3 => {
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| 40 | Name => 'EBMLHeader',
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| 41 | SubDirectory => { TagTable => 'Image::ExifTool::Matroska::Main' },
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| 42 | },
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| 43 | 0x286 => { Name => 'EBMLVersion', Format => 'unsigned' },
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| 44 | 0x2f7 => { Name => 'EBMLReadVersion', Format => 'unsigned' },
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| 45 | 0x2f2 => { Name => 'EBMLMaxIDLength', Format => 'unsigned', Unknown => 1 },
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| 46 | 0x2f3 => { Name => 'EBMLMaxSizeLength', Format => 'unsigned', Unknown => 1 },
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| 47 | 0x282 => {
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| 48 | Name => 'DocType',
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| 49 | Format => 'string',
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| 50 | # override FileType for "webm" files
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| 51 | RawConv => '$self->OverrideFileType("WEBM") if $val eq "webm"; $val',
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| 52 | },
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| 53 | 0x287 => { Name => 'DocTypeVersion', Format => 'unsigned' },
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| 54 | 0x285 => { Name => 'DocTypeReadVersion',Format => 'unsigned' },
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| 55 | #
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| 56 | # General
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| 57 | #
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| 58 | 0x3f => { Name => 'CRC-32', Binary => 1, Unknown => 1 },
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| 59 | 0x6c => { Name => 'Void', NoSave => 1, Unknown => 1 },
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| 60 | #
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| 61 | # Signature
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| 62 | #
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| 63 | 0xb538667 => {
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| 64 | Name => 'SignatureSlot',
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| 65 | SubDirectory => { TagTable => 'Image::ExifTool::Matroska::Main' },
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| 66 | },
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| 67 | 0x3e8a => { Name => 'SignatureAlgo', Format => 'unsigned' },
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| 68 | 0x3e9a => { Name => 'SignatureHash', Format => 'unsigned' },
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| 69 | 0x3ea5 => { Name =>'SignaturePublicKey',Binary => 1, Unknown => 1 },
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| 70 | 0x3eb5 => { Name => 'Signature', Binary => 1, Unknown => 1 },
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| 71 | 0x3e5b => {
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| 72 | Name => 'SignatureElements',
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| 73 | SubDirectory => { TagTable => 'Image::ExifTool::Matroska::Main' },
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| 74 | },
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| 75 | 0x3e7b => {
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| 76 | Name => 'SignatureElementList',
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| 77 | SubDirectory => { TagTable => 'Image::ExifTool::Matroska::Main' },
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| 78 | },
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| 79 | 0x2532 => { Name => 'SignedElement', Binary => 1, Unknown => 1 },
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| 80 | #
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| 81 | # Segment
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| 82 | #
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| 83 | 0x8538067 => {
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| 84 | Name => 'SegmentHeader',
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| 85 | SubDirectory => { TagTable => 'Image::ExifTool::Matroska::Main' },
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| 86 | },
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| 87 | 0x14d9b74 => {
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| 88 | Name => 'SeekHead',
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| 89 | SubDirectory => { TagTable => 'Image::ExifTool::Matroska::Main' },
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| 90 | },
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| 91 | 0xdbb => {
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| 92 | Name => 'Seek',
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| 93 | SubDirectory => { TagTable => 'Image::ExifTool::Matroska::Main' },
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| 94 | },
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| 95 | 0x13ab => { Name => 'SeekID', Binary => 1, Unknown => 1 },
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| 96 | 0x13ac => { Name => 'SeekPosition', Format => 'unsigned', Unknown => 1 },
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| 97 | #
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| 98 | # Segment Info
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| 99 | #
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| 100 | 0x549a966 => {
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| 101 | Name => 'Info',
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| 102 | SubDirectory => { TagTable => 'Image::ExifTool::Matroska::Main' },
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| 103 | },
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| 104 | 0x33a4 => { Name => 'SegmentUID', Binary => 1, Unknown => 1 },
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| 105 | 0x3384 => { Name => 'SegmentFileName', Format => 'utf8' },
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| 106 | 0x1cb923 => { Name => 'PrevUID', Binary => 1, Unknown => 1 },
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| 107 | 0x1c83ab => { Name => 'PrevFileName', Format => 'utf8' },
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| 108 | 0x1eb923 => { Name => 'NextUID', Binary => 1, Unknown => 1 },
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| 109 | 0x1e83bb => { Name => 'NextFileName', Format => 'utf8' },
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| 110 | 0x0444 => { Name => 'SegmentFamily', Binary => 1, Unknown => 1 },
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| 111 | 0x2924 => {
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| 112 | Name => 'ChapterTranslate',
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| 113 | SubDirectory => { TagTable => 'Image::ExifTool::Matroska::Main' },
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| 114 | },
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| 115 | 0x29fc => { Name => 'ChapterTranslateEditionUID',Format => 'unsigned', Unknown => 1 },
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| 116 | 0x29bf => {
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| 117 | Name => 'ChapterTranslateCodec',
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| 118 | Format => 'unsigned',
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| 119 | PrintConv => { 0 => 'Matroska Script', 1 => 'DVD Menu' },
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| 120 | },
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| 121 | 0x29a5 => { Name => 'ChapterTranslateID',Binary => 1, Unknown => 1 },
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| 122 | 0xad7b1 => {
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| 123 | Name => 'TimecodeScale',
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| 124 | Format => 'unsigned',
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| 125 | RawConv => '$$self{TimecodeScale} = $val',
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| 126 | ValueConv => '$val / 1e9',
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| 127 | PrintConv => '($val * 1000) . " ms"',
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| 128 | },
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| 129 | 0x489 => {
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| 130 | Name => 'Duration',
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| 131 | Format => 'float',
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| 132 | ValueConv => '$$self{TimecodeScale} ? $val * $$self{TimecodeScale} / 1e9 : $val',
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| 133 | PrintConv => '$$self{TimecodeScale} ? ConvertDuration($val) : $val',
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| 134 | },
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| 135 | 0x461 => {
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| 136 | Name => 'DateTimeOriginal', # called "DateUTC" by the spec
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| 137 | Description => 'Date/Time Original',
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| 138 | Groups => { 2 => 'Time' },
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| 139 | Format => 'date',
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| 140 | PrintConv => '$self->ConvertDateTime($val)',
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| 141 | },
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| 142 | 0x3ba9 => { Name => 'Title', Format => 'utf8' },
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| 143 | 0xd80 => { Name => 'MuxingApp', Format => 'utf8' },
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| 144 | 0x1741 => { Name => 'WritingApp', Format => 'utf8' },
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| 145 | #
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| 146 | # Cluster
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| 147 | #
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| 148 | 0xf43b675 => {
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| 149 | Name => 'Cluster',
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| 150 | SubDirectory => { TagTable => 'Image::ExifTool::Matroska::Main' },
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| 151 | },
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| 152 | 0x67 => {
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| 153 | Name => 'Timecode',
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| 154 | Format => 'unsigned',
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| 155 | Unknown => 1,
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| 156 | ValueConv => '$$self{TimecodeScale} ? $val * $$self{TimecodeScale} / 1e9 : $val',
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| 157 | PrintConv => '$$self{TimecodeScale} ? ConvertDuration($val) : $val',
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| 158 | },
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| 159 | 0x1854 => {
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| 160 | Name => 'SilentTracks',
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| 161 | SubDirectory => { TagTable => 'Image::ExifTool::Matroska::Main' },
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| 162 | },
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| 163 | 0x18d7 => { Name => 'SilentTrackNumber',Format => 'unsigned' },
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| 164 | 0x27 => { Name => 'Position', Format => 'unsigned' },
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| 165 | 0x2b => { Name => 'PrevSize', Format => 'unsigned' },
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| 166 | 0x23 => { Name => 'SimpleBlock', NoSave => 1, Unknown => 1 },
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| 167 | 0x20 => {
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| 168 | Name => 'BlockGroup',
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| 169 | SubDirectory => { TagTable => 'Image::ExifTool::Matroska::Main' },
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| 170 | },
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| 171 | 0x21 => { Name => 'Block', NoSave => 1, Unknown => 1 },
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| 172 | 0x22 => { Name => 'BlockVirtual', NoSave => 1, Unknown => 1 },
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| 173 | 0x35a1 => {
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| 174 | Name => 'BlockAdditions',
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| 175 | SubDirectory => { TagTable => 'Image::ExifTool::Matroska::Main' },
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| 176 | },
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| 177 | 0x26 => {
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| 178 | Name => 'BlockMore',
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| 179 | SubDirectory => { TagTable => 'Image::ExifTool::Matroska::Main' },
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| 180 | },
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| 181 | 0x6e => { Name => 'BlockAddID', Format => 'unsigned', Unknown => 1 },
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| 182 | 0x25 => { Name => 'BlockAdditional', NoSave => 1, Unknown => 1 },
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| 183 | 0x1b => {
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| 184 | Name => 'BlockDuration',
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| 185 | Format => 'unsigned',
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| 186 | Unknown => 1,
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| 187 | ValueConv => '$$self{TimecodeScale} ? $val * $$self{TimecodeScale} / 1e9 : $val',
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| 188 | PrintConv => '$$self{TimecodeScale} ? "$val s" : $val',
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| 189 | },
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| 190 | 0x7a => { Name => 'ReferencePriority',Format => 'unsigned', Unknown => 1 },
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| 191 | 0x7b => {
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| 192 | Name => 'ReferenceBlock',
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| 193 | Format => 'signed',
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| 194 | Unknown => 1,
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| 195 | ValueConv => '$$self{TimecodeScale} ? $val * $$self{TimecodeScale} / 1e9 : $val',
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| 196 | PrintConv => '$$self{TimecodeScale} ? "$val s" : $val',
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| 197 | },
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| 198 | 0x7d => { Name => 'ReferenceVirtual', Format => 'signed', Unknown => 1 },
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| 199 | 0x24 => { Name => 'CodecState', Binary => 1, Unknown => 1 },
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| 200 | 0x0e => {
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| 201 | Name => 'Slices',
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| 202 | SubDirectory => { TagTable => 'Image::ExifTool::Matroska::Main' },
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| 203 | },
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| 204 | 0x68 => {
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| 205 | Name => 'TimeSlice',
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| 206 | SubDirectory => { TagTable => 'Image::ExifTool::Matroska::Main' },
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| 207 | },
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| 208 | 0x4c => { Name => 'LaceNumber', Format => 'unsigned', Unknown => 1 },
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| 209 | 0x4d => { Name => 'FrameNumber', Format => 'unsigned', Unknown => 1 },
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| 210 | 0x4b => { Name => 'BlockAdditionalID',Format => 'unsigned', Unknown => 1 },
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| 211 | 0x4e => { Name => 'Delay', Format => 'unsigned', Unknown => 1 },
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| 212 | 0x4f => { Name => 'ClusterDuration', Format => 'unsigned', Unknown => 1 },
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| 213 | 0x2f => { Name => 'EncryptedBlock', NoSave => 1, Unknown => 1 },
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| 214 | #
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| 215 | # Tracks
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| 216 | #
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| 217 | 0x654ae6b => {
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| 218 | Name => 'Tracks',
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| 219 | SubDirectory => { TagTable => 'Image::ExifTool::Matroska::Main' },
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| 220 | },
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| 221 | 0x2e => {
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| 222 | Name => 'TrackEntry',
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| 223 | SubDirectory => { TagTable => 'Image::ExifTool::Matroska::Main' },
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| 224 | },
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| 225 | 0x57 => { Name => 'TrackNumber', Format => 'unsigned' },
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| 226 | 0x33c5 => { Name => 'TrackUID', Format => 'unsigned', Unknown => 1 },
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| 227 | 0x03 => {
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| 228 | Name => 'TrackType',
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| 229 | Format => 'unsigned',
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| 230 | PrintHex => 1,
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| 231 | # remember types of all tracks encountered, as well as the current track type
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| 232 | RawConv => '$$self{TrackTypes}{$val} = 1; $$self{TrackType} = $val',
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| 233 | PrintConv => {
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| 234 | 0x01 => 'Video',
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| 235 | 0x02 => 'Audio',
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| 236 | 0x03 => 'Complex', # (audio+video)
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| 237 | 0x10 => 'Logo',
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| 238 | 0x11 => 'Subtitle',
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| 239 | 0x12 => 'Buttons',
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| 240 | 0x20 => 'Control',
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| 241 | },
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| 242 | },
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| 243 | 0x39 => { Name => 'TrackUsed', Format => 'unsigned', PrintConv => \%noYes },
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| 244 | 0x08 => { Name => 'TrackDefault', Format => 'unsigned', PrintConv => \%noYes },
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| 245 | 0x15aa => { Name => 'TrackForced', Format => 'unsigned', PrintConv => \%noYes },
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| 246 | 0x1c => {
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| 247 | Name => 'TrackLacing',
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| 248 | Format => 'unsigned',
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| 249 | Unknown => 1,
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| 250 | PrintConv => \%noYes,
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| 251 | },
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| 252 | 0x2de7 => { Name => 'MinCache', Format => 'unsigned', Unknown => 1 },
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| 253 | 0x2df8 => { Name => 'MaxCache', Format => 'unsigned', Unknown => 1 },
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| 254 | 0x3e383 => [
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| 255 | {
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| 256 | Name => 'VideoFrameRate',
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| 257 | Condition => '$$self{TrackType} and $$self{TrackType} == 0x01',
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| 258 | Format => 'unsigned',
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| 259 | ValueConv => '$val ? 1e9 / $val : 0',
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| 260 | PrintConv => 'int($val * 1000 + 0.5) / 1000',
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| 261 | },{
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| 262 | Name => 'DefaultDuration',
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| 263 | Format => 'unsigned',
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| 264 | ValueConv => '$val / 1e9',
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| 265 | PrintConv => '($val * 1000) . " ms"',
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| 266 | }
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| 267 | ],
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| 268 | 0x3314f => { Name => 'TrackTimecodeScale',Format => 'float' },
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| 269 | 0x137f => { Name => 'TrackOffset', Format => 'signed', Unknown => 1 },
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| 270 | 0x15ee => { Name => 'MaxBlockAdditionID',Format => 'unsigned', Unknown => 1 },
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| 271 | 0x136e => { Name => 'TrackName', Format => 'utf8' },
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| 272 | 0x2b59c => { Name => 'TrackLanguage', Format => 'string' },
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| 273 | 0x06 => [
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| 274 | {
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| 275 | Name => 'VideoCodecID',
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| 276 | Condition => '$$self{TrackType} and $$self{TrackType} == 0x01',
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| 277 | Format => 'string',
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| 278 | },{
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| 279 | Name => 'AudioCodecID',
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| 280 | Condition => '$$self{TrackType} and $$self{TrackType} == 0x02',
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| 281 | Format => 'string',
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| 282 | },{
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| 283 | Name => 'CodecID',
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| 284 | Format => 'string',
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| 285 | }
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| 286 | ],
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| 287 | 0x23a2 => { Name => 'CodecPrivate', Binary => 1, Unknown => 1 },
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| 288 | 0x58688 => [
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| 289 | {
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| 290 | Name => 'VideoCodecName',
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| 291 | Condition => '$$self{TrackType} and $$self{TrackType} == 0x01',
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| 292 | Format => 'utf8',
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| 293 | },{
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| 294 | Name => 'AudioCodecName',
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| 295 | Condition => '$$self{TrackType} and $$self{TrackType} == 0x02',
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| 296 | Format => 'utf8',
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| 297 | },{
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| 298 | Name => 'CodecName',
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| 299 | Format => 'utf8',
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| 300 | }
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| 301 | ],
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| 302 | 0x3446 => { Name => 'TrackAttachmentUID',Format => 'unsigned' },
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| 303 | 0x1a9697=>{ Name => 'CodecSettings', Format => 'utf8' },
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| 304 | 0x1b4040=>{ Name => 'CodecInfoURL', Format => 'string' },
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| 305 | 0x6b240 =>{ Name => 'CodecDownloadURL', Format => 'string' },
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| 306 | 0x2a => { Name => 'CodecDecodeAll', Format => 'unsigned', PrintConv => \%noYes },
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| 307 | 0x2fab => { Name => 'TrackOverlay', Format => 'unsigned', Unknown => 1 },
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| 308 | 0x2624 => {
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| 309 | Name => 'TrackTranslate',
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| 310 | SubDirectory => { TagTable => 'Image::ExifTool::Matroska::Main' },
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| 311 | },
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| 312 | 0x26fc => { Name => 'TrackTranslateEditionUID',Format => 'unsigned', Unknown => 1 },
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| 313 | 0x26bf => {
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| 314 | Name => 'TrackTranslateCodec',
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| 315 | Format => 'unsigned',
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| 316 | PrintConv => { 0 => 'Matroska Script', 1 => 'DVD Menu' },
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| 317 | },
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| 318 | 0x26a5 => { Name => 'TrackTranslateTrackID', Binary => 1, Unknown => 1 },
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| 319 | #
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| 320 | # Video
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| 321 | #
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| 322 | 0x60 => {
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| 323 | Name => 'Video',
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| 324 | SubDirectory => { TagTable => 'Image::ExifTool::Matroska::Main' },
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| 325 | },
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| 326 | 0x1a => {
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| 327 | Name => 'VideoScanType',
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| 328 | Format => 'unsigned',
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| 329 | PrintConv => {
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| 330 | 0 => 'Progressive',
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| 331 | 1 => 'Interlaced',
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| 332 | },
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| 333 | },
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| 334 | 0x13b8 => {
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| 335 | Name => 'Stereo3DMode',
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| 336 | Format => 'unsigned',
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| 337 | Printconv => {
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| 338 | 0 => 'Mono',
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| 339 | 1 => 'Right Eye',
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| 340 | 2 => 'Left Eye',
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| 341 | 3 => 'Both Eyes',
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| 342 | },
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| 343 | },
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| 344 | 0x30 => { Name => 'ImageWidth', Format => 'unsigned' },
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| 345 | 0x3a => { Name => 'ImageHeight', Format => 'unsigned' },
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| 346 | 0x14aa => { Name => 'CropBottom', Format => 'unsigned' },
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| 347 | 0x14bb => { Name => 'CropTop', Format => 'unsigned' },
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| 348 | 0x14cc => { Name => 'CropLeft', Format => 'unsigned' },
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| 349 | 0x14dd => { Name => 'CropRight', Format => 'unsigned' },
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| 350 | 0x14b0 => { Name => 'DisplayWidth', Format => 'unsigned' },
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| 351 | 0x14ba => { Name => 'DisplayHeight', Format => 'unsigned' },
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| 352 | 0x14b2 => {
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| 353 | Name => 'DisplayUnit',
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| 354 | Format => 'unsigned',
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| 355 | PrintConv => {
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| 356 | 0 => 'Pixels',
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| 357 | 1 => 'cm',
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| 358 | 2 => 'inches',
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| 359 | },
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| 360 | },
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| 361 | 0x14b3 => {
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| 362 | Name => 'AspectRatioType',
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| 363 | Format => 'unsigned',
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| 364 | PrintConv => {
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| 365 | 0 => 'Free Resizing',
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| 366 | 1 => 'Keep Aspect Ratio',
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| 367 | 2 => 'Fixed',
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| 368 | },
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| 369 | },
|
|---|
| 370 | 0xeb524 => { Name => 'ColorSpace', Binary => 1, Unknown => 1 },
|
|---|
| 371 | 0xfb523 => { Name => 'Gamma', Format => 'float' },
|
|---|
| 372 | 0x383e3 => { Name => 'FrameRate', Format => 'float' },
|
|---|
| 373 | #
|
|---|
| 374 | # Audio
|
|---|
| 375 | #
|
|---|
| 376 | 0x61 => {
|
|---|
| 377 | Name => 'Audio',
|
|---|
| 378 | SubDirectory => { TagTable => 'Image::ExifTool::Matroska::Main' },
|
|---|
| 379 | },
|
|---|
| 380 | 0x35 => { Name => 'AudioSampleRate', Format => 'float', Groups => { 2 => 'Audio' } },
|
|---|
| 381 | 0x38b5 => { Name => 'OutputAudioSampleRate',Format => 'float', Groups => { 2 => 'Audio' } },
|
|---|
| 382 | 0x1f => { Name => 'AudioChannels', Format => 'unsigned', Groups => { 2 => 'Audio' } },
|
|---|
| 383 | 0x3d7b => {
|
|---|
| 384 | Name => 'ChannelPositions',
|
|---|
| 385 | Binary => 1,
|
|---|
| 386 | Unknown => 1,
|
|---|
| 387 | Groups => { 2 => 'Audio' },
|
|---|
| 388 | },
|
|---|
| 389 | 0x2264 => { Name => 'AudioBitsPerSample', Format => 'unsigned', Groups => { 2 => 'Audio' } },
|
|---|
| 390 | #
|
|---|
| 391 | # Content Encoding
|
|---|
| 392 | #
|
|---|
| 393 | 0x2d80 => {
|
|---|
| 394 | Name => 'ContentEncodings',
|
|---|
| 395 | SubDirectory => { TagTable => 'Image::ExifTool::Matroska::Main' },
|
|---|
| 396 | },
|
|---|
| 397 | 0x2240 => {
|
|---|
| 398 | Name => 'ContentEncoding',
|
|---|
| 399 | SubDirectory => { TagTable => 'Image::ExifTool::Matroska::Main' },
|
|---|
| 400 | },
|
|---|
| 401 | 0x1031 => { Name => 'ContentEncodingOrder', Format => 'unsigned', Unknown => 1 },
|
|---|
| 402 | 0x1032 => { Name => 'ContentEncodingScope', Format => 'unsigned', Unknown => 1 },
|
|---|
| 403 | 0x1033 => {
|
|---|
| 404 | Name => 'ContentEncodingType',
|
|---|
| 405 | Format => 'unsigned',
|
|---|
| 406 | PrintConv => { 0 => 'Compression', 1 => 'Encryption' },
|
|---|
| 407 | },
|
|---|
| 408 | 0x1034 => {
|
|---|
| 409 | Name => 'ContentCompression',
|
|---|
| 410 | SubDirectory => { TagTable => 'Image::ExifTool::Matroska::Main' },
|
|---|
| 411 | },
|
|---|
| 412 | 0x254 => {
|
|---|
| 413 | Name => 'ContentCompressionAlgorithm',
|
|---|
| 414 | Format => 'unsigned',
|
|---|
| 415 | PrintConv => {
|
|---|
| 416 | 0 => 'zlib',
|
|---|
| 417 | 1 => 'bzlib',
|
|---|
| 418 | 2 => 'lzo1x',
|
|---|
| 419 | 3 => 'Header Stripping',
|
|---|
| 420 | },
|
|---|
| 421 | },
|
|---|
| 422 | 0x255 => { Name => 'ContentCompressionSettings',Binary => 1, Unknown => 1 },
|
|---|
| 423 | 0x1035 => {
|
|---|
| 424 | Name => 'ContentEncryption',
|
|---|
| 425 | SubDirectory => { TagTable => 'Image::ExifTool::Matroska::Main' },
|
|---|
| 426 | },
|
|---|
| 427 | 0x7e1 => {
|
|---|
| 428 | Name => 'ContentEncryptionAlgorithm',
|
|---|
| 429 | Format => 'unsigned',
|
|---|
| 430 | PrintConv => {
|
|---|
| 431 | 0 => 'Not Encrypted',
|
|---|
| 432 | 1 => 'DES',
|
|---|
| 433 | 2 => '3DES',
|
|---|
| 434 | 3 => 'Twofish',
|
|---|
| 435 | 4 => 'Blowfish',
|
|---|
| 436 | 5 => 'AES',
|
|---|
| 437 | },
|
|---|
| 438 | },
|
|---|
| 439 | 0x7e2 => { Name => 'ContentEncryptionKeyID',Binary => 1, Unknown => 1 },
|
|---|
| 440 | 0x7e3 => { Name => 'ContentSignature', Binary => 1, Unknown => 1 },
|
|---|
| 441 | 0x7e4 => { Name => 'ContentSignatureKeyID', Binary => 1, Unknown => 1 },
|
|---|
| 442 | 0x7e5 => {
|
|---|
| 443 | Name => 'ContentSignatureAlgorithm',
|
|---|
| 444 | Format => 'unsigned',
|
|---|
| 445 | PrintConv => {
|
|---|
| 446 | 0 => 'Not Signed',
|
|---|
| 447 | 1 => 'RSA',
|
|---|
| 448 | },
|
|---|
| 449 | },
|
|---|
| 450 | 0x7e6 => {
|
|---|
| 451 | Name => 'ContentSignatureHashAlgorithm',
|
|---|
| 452 | Format => 'unsigned',
|
|---|
| 453 | PrintConv => {
|
|---|
| 454 | 0 => 'Not Signed',
|
|---|
| 455 | 1 => 'SHA1-160',
|
|---|
| 456 | 2 => 'MD5',
|
|---|
| 457 | },
|
|---|
| 458 | },
|
|---|
| 459 | #
|
|---|
| 460 | # Cues
|
|---|
| 461 | #
|
|---|
| 462 | 0xc53bb6b => {
|
|---|
| 463 | Name => 'Cues',
|
|---|
| 464 | SubDirectory => { TagTable => 'Image::ExifTool::Matroska::Main' },
|
|---|
| 465 | },
|
|---|
| 466 | 0x3b => {
|
|---|
| 467 | Name => 'CuePoint',
|
|---|
| 468 | SubDirectory => { TagTable => 'Image::ExifTool::Matroska::Main' },
|
|---|
| 469 | },
|
|---|
| 470 | 0x33 => {
|
|---|
| 471 | Name => 'CueTime',
|
|---|
| 472 | Format => 'unsigned',
|
|---|
| 473 | Unknown => 1,
|
|---|
| 474 | ValueConv => '$$self{TimecodeScale} ? $val * $$self{TimecodeScale} / 1e9 : $val',
|
|---|
| 475 | PrintConv => '$$self{TimecodeScale} ? ConvertDuration($val) : $val',
|
|---|
| 476 | },
|
|---|
| 477 | 0x37 => {
|
|---|
| 478 | Name => 'CueTrackPositions',
|
|---|
| 479 | SubDirectory => { TagTable => 'Image::ExifTool::Matroska::Main' },
|
|---|
| 480 | },
|
|---|
| 481 | 0x77 => { Name => 'CueTrack', Format => 'unsigned', Unknown => 1 },
|
|---|
| 482 | 0x71 => { Name => 'CueClusterPosition',Format => 'unsigned', Unknown => 1 },
|
|---|
| 483 | 0x1378 => { Name => 'CueBlockNumber', Format => 'unsigned', Unknown => 1 },
|
|---|
| 484 | 0x6a => { Name => 'CueCodecState', Format => 'unsigned', Unknown => 1 },
|
|---|
| 485 | 0x5b => {
|
|---|
| 486 | Name => 'CueReference',
|
|---|
| 487 | SubDirectory => { TagTable => 'Image::ExifTool::Matroska::Main' },
|
|---|
| 488 | },
|
|---|
| 489 | 0x16 => {
|
|---|
| 490 | Name => 'CueRefTime',
|
|---|
| 491 | Format => 'unsigned',
|
|---|
| 492 | Unknown => 1,
|
|---|
| 493 | ValueConv => '$$self{TimecodeScale} ? $val * $$self{TimecodeScale} / 1e9 : $val',
|
|---|
| 494 | PrintConv => '$$self{TimecodeScale} ? ConvertDuration($val) : $val',
|
|---|
| 495 | },
|
|---|
| 496 | 0x17 => { Name => 'CueRefCluster', Format => 'unsigned', Unknown => 1 },
|
|---|
| 497 | 0x135f=> { Name => 'CueRefNumber', Format => 'unsigned', Unknown => 1 },
|
|---|
| 498 | 0x6b => { Name => 'CueRefCodecState', Format => 'unsigned', Unknown => 1 },
|
|---|
| 499 | #
|
|---|
| 500 | # Attachments
|
|---|
| 501 | #
|
|---|
| 502 | 0x941a469 => {
|
|---|
| 503 | Name => 'Attachments',
|
|---|
| 504 | SubDirectory => { TagTable => 'Image::ExifTool::Matroska::Main' },
|
|---|
| 505 | },
|
|---|
| 506 | 0x21a7 => {
|
|---|
| 507 | Name => 'AttachedFile',
|
|---|
| 508 | SubDirectory => { TagTable => 'Image::ExifTool::Matroska::Main' },
|
|---|
| 509 | },
|
|---|
| 510 | 0x67e => { Name => 'AttachedFileDescription',Format => 'utf8' },
|
|---|
| 511 | 0x66e => { Name => 'AttachedFileName', Format => 'utf8' },
|
|---|
| 512 | 0x660 => { Name => 'AttachedFileMIMEType', Format => 'string' },
|
|---|
| 513 | 0x65c => { Name => 'AttachedFileData', Binary => 1 },
|
|---|
| 514 | 0x6ae => { Name => 'AttachedFileUID', Format => 'unsigned' },
|
|---|
| 515 | 0x675 => { Name => 'AttachedFileReferral', Binary => 1, Unknown => 1 },
|
|---|
| 516 | #
|
|---|
| 517 | # Chapters
|
|---|
| 518 | #
|
|---|
| 519 | 0x43a770 => {
|
|---|
| 520 | Name => 'Chapters',
|
|---|
| 521 | SubDirectory => { TagTable => 'Image::ExifTool::Matroska::Main' },
|
|---|
| 522 | },
|
|---|
| 523 | 0x5b9 => {
|
|---|
| 524 | Name => 'EditionEntry',
|
|---|
| 525 | SubDirectory => { TagTable => 'Image::ExifTool::Matroska::Main' },
|
|---|
| 526 | },
|
|---|
| 527 | 0x5bc => { Name => 'EditionUID', Format => 'unsigned', Unknown => 1 },
|
|---|
| 528 | 0x5bd => { Name => 'EditionFlagHidden', Format => 'unsigned', Unknown => 1 },
|
|---|
| 529 | 0x5db => { Name => 'EditionFlagDefault',Format => 'unsigned', Unknown => 1 },
|
|---|
| 530 | 0x5dd => { Name => 'EditionFlagOrdered',Format => 'unsigned', Unknown => 1 },
|
|---|
| 531 | 0x36 => {
|
|---|
| 532 | Name => 'ChapterAtom',
|
|---|
| 533 | SubDirectory => { TagTable => 'Image::ExifTool::Matroska::Main' },
|
|---|
| 534 | },
|
|---|
| 535 | 0x33c4 => { Name => 'ChapterUID', Format => 'unsigned', Unknown => 1 },
|
|---|
| 536 | 0x11 => {
|
|---|
| 537 | Name => 'ChapterTimeStart',
|
|---|
| 538 | Groups => { 1 => 'Chapter#' },
|
|---|
| 539 | Format => 'unsigned',
|
|---|
| 540 | ValueConv => '$val / 1e9',
|
|---|
| 541 | PrintConv => 'ConvertDuration($val)',
|
|---|
| 542 | },
|
|---|
| 543 | 0x12 => {
|
|---|
| 544 | Name => 'ChapterTimeEnd',
|
|---|
| 545 | Format => 'unsigned',
|
|---|
| 546 | ValueConv => '$val / 1e9',
|
|---|
| 547 | PrintConv => 'ConvertDuration($val)',
|
|---|
| 548 | },
|
|---|
| 549 | 0x18 => { Name => 'ChapterFlagHidden', Format => 'unsigned', Unknown => 1 },
|
|---|
| 550 | 0x598 => { Name => 'ChapterFlagEnabled',Format => 'unsigned', Unknown => 1 },
|
|---|
| 551 | 0x2e67=> { Name => 'ChapterSegmentUID', Binary => 1, Unknown => 1 },
|
|---|
| 552 | 0x2ebc=> { Name => 'ChapterSegmentEditionUID', Binary => 1, Unknown => 1 },
|
|---|
| 553 | 0x23c3 => {
|
|---|
| 554 | Name => 'ChapterPhysicalEquivalent',
|
|---|
| 555 | Format => 'unsigned',
|
|---|
| 556 | PrintConv => {
|
|---|
| 557 | 10 => 'Index',
|
|---|
| 558 | 20 => 'Track',
|
|---|
| 559 | 30 => 'Session',
|
|---|
| 560 | 40 => 'Layer',
|
|---|
| 561 | 50 => 'Side',
|
|---|
| 562 | 60 => 'CD / DVD',
|
|---|
| 563 | 70 => 'Set / Package',
|
|---|
| 564 | },
|
|---|
| 565 | },
|
|---|
| 566 | 0x0f => {
|
|---|
| 567 | Name => 'ChapterTrack',
|
|---|
| 568 | SubDirectory => { TagTable => 'Image::ExifTool::Matroska::Main' },
|
|---|
| 569 | },
|
|---|
| 570 | 0x09 => { Name => 'ChapterTrackNumber', Format => 'unsigned', Unknown => 1 },
|
|---|
| 571 | 0x00 => {
|
|---|
| 572 | Name => 'ChapterDisplay',
|
|---|
| 573 | SubDirectory => { TagTable => 'Image::ExifTool::Matroska::Main' },
|
|---|
| 574 | },
|
|---|
| 575 | 0x05 => { Name => 'ChapterString', Format => 'utf8' },
|
|---|
| 576 | 0x37c => { Name => 'ChapterLanguage', Format => 'string' },
|
|---|
| 577 | 0x37e => { Name => 'ChapterCountry', Format => 'string' },
|
|---|
| 578 | 0x2944 => {
|
|---|
| 579 | Name => 'ChapterProcess',
|
|---|
| 580 | SubDirectory => { TagTable => 'Image::ExifTool::Matroska::Main' },
|
|---|
| 581 | },
|
|---|
| 582 | 0x2955 => {
|
|---|
| 583 | Name => 'ChapterProcessCodecID',
|
|---|
| 584 | Format => 'unsigned',
|
|---|
| 585 | Unknown => 1,
|
|---|
| 586 | PrintConv => { 0 => 'Matroska', 1 => 'DVD' },
|
|---|
| 587 | },
|
|---|
| 588 | 0x50d => { Name => 'ChapterProcessPrivate', Binary => 1, Unknown => 1 },
|
|---|
| 589 | 0x2911 => {
|
|---|
| 590 | Name => 'ChapterProcessCommand',
|
|---|
| 591 | SubDirectory => { TagTable => 'Image::ExifTool::Matroska::Main' },
|
|---|
| 592 | },
|
|---|
| 593 | 0x2922 => {
|
|---|
| 594 | Name => 'ChapterProcessTime',
|
|---|
| 595 | Format => 'unsigned',
|
|---|
| 596 | Unknown => 1,
|
|---|
| 597 | PrintConv => {
|
|---|
| 598 | 0 => 'For Duration of Chapter',
|
|---|
| 599 | 1 => 'Before Chapter',
|
|---|
| 600 | 2 => 'After Chapter',
|
|---|
| 601 | },
|
|---|
| 602 | },
|
|---|
| 603 | 0x2933 => { Name => 'ChapterProcessData', Binary => 1, Unknown => 1 },
|
|---|
| 604 | #
|
|---|
| 605 | # Tags
|
|---|
| 606 | #
|
|---|
| 607 | 0x254c367 => {
|
|---|
| 608 | Name => 'Tags',
|
|---|
| 609 | SubDirectory => { TagTable => 'Image::ExifTool::Matroska::Main' },
|
|---|
| 610 | },
|
|---|
| 611 | 0x3373 => {
|
|---|
| 612 | Name => 'Tag',
|
|---|
| 613 | SubDirectory => { TagTable => 'Image::ExifTool::Matroska::Main' },
|
|---|
| 614 | },
|
|---|
| 615 | 0x23c0 => {
|
|---|
| 616 | Name => 'Targets',
|
|---|
| 617 | SubDirectory => { TagTable => 'Image::ExifTool::Matroska::Main' },
|
|---|
| 618 | },
|
|---|
| 619 | 0x28ca => { Name => 'TargetTypeValue', Format => 'unsigned' },
|
|---|
| 620 | 0x23ca => { Name => 'TargetType', Format => 'string' },
|
|---|
| 621 | 0x23c5 => { Name => 'TagTrackUID', Format => 'unsigned', Unknown => 1 },
|
|---|
| 622 | 0x23c9 => { Name => 'TagEditionUID', Format => 'unsigned', Unknown => 1 },
|
|---|
| 623 | 0x23c4 => { Name => 'TagChapterUID', Format => 'unsigned', Unknown => 1 },
|
|---|
| 624 | 0x23c6 => { Name => 'TagAttachmentUID', Format => 'unsigned', Unknown => 1 },
|
|---|
| 625 | 0x27c8 => {
|
|---|
| 626 | Name => 'SimpleTag',
|
|---|
| 627 | SubDirectory => { TagTable => 'Image::ExifTool::Matroska::Main' },
|
|---|
| 628 | },
|
|---|
| 629 | 0x5a3 => { Name => 'TagName', Format => 'utf8' },
|
|---|
| 630 | 0x47a => { Name => 'TagLanguage', Format => 'string' },
|
|---|
| 631 | 0x484 => { Name => 'TagDefault', Format => 'unsigned', PrintConv => \%noYes },
|
|---|
| 632 | 0x487 => { Name => 'TagString', Format => 'utf8' },
|
|---|
| 633 | 0x485 => { Name => 'TagBinary', Binary => 1 },
|
|---|
| 634 | );
|
|---|
| 635 |
|
|---|
| 636 | #------------------------------------------------------------------------------
|
|---|
| 637 | # Get variable-length Matroska integer
|
|---|
| 638 | # Inputs: 0) data buffer, 1) position in data
|
|---|
| 639 | # Returns: integer value and updates position, -1 for unknown/reserved value,
|
|---|
| 640 | # or undef if no data left
|
|---|
| 641 | sub GetVInt($$)
|
|---|
| 642 | {
|
|---|
| 643 | return undef if $_[1] >= length $_[0];
|
|---|
| 644 | my $val = ord(substr($_[0], $_[1]++));
|
|---|
| 645 | my $num = 0;
|
|---|
| 646 | unless ($val) {
|
|---|
| 647 | return undef if $_[1] >= length $_[0];
|
|---|
| 648 | $val = ord(substr($_[0], $_[1]++));
|
|---|
| 649 | return undef unless $val; # can't be this large!
|
|---|
| 650 | $num += 7; # 7 more bytes to read (we just read one)
|
|---|
| 651 | }
|
|---|
| 652 | my $mask = 0x7f;
|
|---|
| 653 | while ($val == ($val & $mask)) {
|
|---|
| 654 | $mask >>= 1;
|
|---|
| 655 | ++$num;
|
|---|
| 656 | }
|
|---|
| 657 | $val = ($val & $mask);
|
|---|
| 658 | my $unknown = ($val == $mask);
|
|---|
| 659 | return undef if $_[1] + $num > length $_[0];
|
|---|
| 660 | while ($num) {
|
|---|
| 661 | my $b = ord(substr($_[0], $_[1]++));
|
|---|
| 662 | $unknown = 0 if $b != 0xff;
|
|---|
| 663 | $val = $val * 256 + $b;
|
|---|
| 664 | --$num;
|
|---|
| 665 | }
|
|---|
| 666 | return $unknown ? -1 : $val;
|
|---|
| 667 | }
|
|---|
| 668 |
|
|---|
| 669 | #------------------------------------------------------------------------------
|
|---|
| 670 | # Read information from a Matroska multimedia file (MKV, MKA, MKS)
|
|---|
| 671 | # Inputs: 0) ExifTool object reference, 1) Directory information reference
|
|---|
| 672 | # Returns: 1 on success, 0 if this wasn't a valid Matroska file
|
|---|
| 673 | sub ProcessMKV($$)
|
|---|
| 674 | {
|
|---|
| 675 | my ($exifTool, $dirInfo) = @_;
|
|---|
| 676 | my $raf = $$dirInfo{RAF};
|
|---|
| 677 | my ($buff, $buf2, @dirEnd, $trackIndent, %trackTypes);
|
|---|
| 678 |
|
|---|
| 679 | $raf->Read($buff, 4) == 4 or return 0;
|
|---|
| 680 | return 0 unless $buff =~ /^\x1a\x45\xdf\xa3/;
|
|---|
| 681 |
|
|---|
| 682 | # read in 64kB blocks (already read 4 bytes)
|
|---|
| 683 | $raf->Read($buff, 65532) or return 0;
|
|---|
| 684 | my $dataLen = length $buff;
|
|---|
| 685 | my ($pos, $dataPos) = (0, 4);
|
|---|
| 686 |
|
|---|
| 687 | # verify header length
|
|---|
| 688 | my $hlen = GetVInt($buff, $pos);
|
|---|
| 689 | return 0 unless $hlen and $hlen > 0;
|
|---|
| 690 | $pos + $hlen > $dataLen and $exifTool->Warn('Truncated Matroska header'), return 1;
|
|---|
| 691 | $exifTool->SetFileType();
|
|---|
| 692 | SetByteOrder('MM');
|
|---|
| 693 | my $tagTablePtr = GetTagTable('Image::ExifTool::Matroska::Main');
|
|---|
| 694 |
|
|---|
| 695 | # set flag to process entire file (otherwise we stop at the first Cluster)
|
|---|
| 696 | my $verbose = $exifTool->Options('Verbose');
|
|---|
| 697 | my $processAll = ($verbose or $exifTool->Options('Unknown') > 1);
|
|---|
| 698 | $$exifTool{TrackTypes} = \%trackTypes; # store Track types reference
|
|---|
| 699 | my $oldIndent = $$exifTool{INDENT};
|
|---|
| 700 | my $chapterNum = 0;
|
|---|
| 701 |
|
|---|
| 702 | # loop over all Matroska elements
|
|---|
| 703 | for (;;) {
|
|---|
| 704 | while (@dirEnd and $pos + $dataPos >= $dirEnd[-1][0]) {
|
|---|
| 705 | pop @dirEnd;
|
|---|
| 706 | # use INDENT to decide whether or not we are done this Track element
|
|---|
| 707 | delete $$exifTool{SET_GROUP1} if $trackIndent and $trackIndent eq $$exifTool{INDENT};
|
|---|
| 708 | $$exifTool{INDENT} = substr($$exifTool{INDENT}, 0, -2);
|
|---|
| 709 | }
|
|---|
| 710 | # read more if we are getting close to the end of our buffer
|
|---|
| 711 | # (24 more bytes should be enough to read this element header)
|
|---|
| 712 | if ($pos + 24 > $dataLen and $raf->Read($buf2, 65536)) {
|
|---|
| 713 | $buff = substr($buff, $pos) . $buf2;
|
|---|
| 714 | undef $buf2;
|
|---|
| 715 | $dataPos += $pos;
|
|---|
| 716 | $dataLen = length $buff;
|
|---|
| 717 | $pos = 0;
|
|---|
| 718 | }
|
|---|
| 719 | my $tag = GetVInt($buff, $pos);
|
|---|
| 720 | last unless defined $tag and $tag >= 0;
|
|---|
| 721 | my $size = GetVInt($buff, $pos);
|
|---|
| 722 | last unless defined $size;
|
|---|
| 723 | my $unknownSize;
|
|---|
| 724 | $size < 0 and $unknownSize = 1, $size = 1e20;
|
|---|
| 725 | if (@dirEnd and $pos + $dataPos + $size > $dirEnd[-1][0]) {
|
|---|
| 726 | $exifTool->Warn("Invalid or corrupted $dirEnd[-1][1] master element");
|
|---|
| 727 | $pos = $dirEnd[-1][0] - $dataPos;
|
|---|
| 728 | if ($pos < 0 or $pos > $dataLen) {
|
|---|
| 729 | $buff = '';
|
|---|
| 730 | $dataPos += $pos;
|
|---|
| 731 | $dataLen = 0;
|
|---|
| 732 | $pos = 0;
|
|---|
| 733 | $raf->Seek($dataPos, 0) or last;
|
|---|
| 734 | }
|
|---|
| 735 | next;
|
|---|
| 736 | }
|
|---|
| 737 | my $tagInfo = $exifTool->GetTagInfo($tagTablePtr, $tag);
|
|---|
| 738 | # just fall through into the contained EBML elements
|
|---|
| 739 | if ($tagInfo and $$tagInfo{SubDirectory}) {
|
|---|
| 740 | # stop processing at first cluster unless we are in verbose mode
|
|---|
| 741 | last if $$tagInfo{Name} eq 'Cluster' and not $processAll;
|
|---|
| 742 | $$exifTool{INDENT} .= '| ';
|
|---|
| 743 | $exifTool->VerboseDir($$tagTablePtr{$tag}{Name}, undef, $size);
|
|---|
| 744 | push @dirEnd, [ $pos + $dataPos + $size, $$tagInfo{Name} ];
|
|---|
| 745 | if ($$tagInfo{Name} eq 'ChapterAtom') {
|
|---|
| 746 | $$exifTool{SET_GROUP1} = 'Chapter' . (++$chapterNum);
|
|---|
| 747 | $trackIndent = $$exifTool{INDENT};
|
|---|
| 748 | }
|
|---|
| 749 | next;
|
|---|
| 750 | }
|
|---|
| 751 | last if $unknownSize;
|
|---|
| 752 | if ($pos + $size > $dataLen) {
|
|---|
| 753 | # how much more do we need to read?
|
|---|
| 754 | my $more = $pos + $size - $dataLen;
|
|---|
| 755 | # just skip unknown and large data blocks
|
|---|
| 756 | if (not $tagInfo or $more > 10000000) {
|
|---|
| 757 | # don't try to skip very large blocks unless LargeFileSupport is enabled
|
|---|
| 758 | last if $more > 0x80000000 and not $exifTool->Options('LargeFileSupport');
|
|---|
| 759 | $raf->Seek($more, 1) or last;
|
|---|
| 760 | $buff = '';
|
|---|
| 761 | $dataPos += $dataLen + $more;
|
|---|
| 762 | $dataLen = 0;
|
|---|
| 763 | $pos = 0;
|
|---|
| 764 | next;
|
|---|
| 765 | } else {
|
|---|
| 766 | # read data in multiples of 64kB
|
|---|
| 767 | $more = (int($more / 65536) + 1) * 65536;
|
|---|
| 768 | if ($raf->Read($buf2, $more)) {
|
|---|
| 769 | $buff = substr($buff, $pos) . $buf2;
|
|---|
| 770 | undef $buf2;
|
|---|
| 771 | $dataPos += $pos;
|
|---|
| 772 | $dataLen = length $buff;
|
|---|
| 773 | $pos = 0;
|
|---|
| 774 | }
|
|---|
| 775 | last if $pos + $size > $dataLen;
|
|---|
| 776 | }
|
|---|
| 777 | }
|
|---|
| 778 | unless ($tagInfo) {
|
|---|
| 779 | # ignore the element
|
|---|
| 780 | $pos += $size;
|
|---|
| 781 | next;
|
|---|
| 782 | }
|
|---|
| 783 | my $val;
|
|---|
| 784 | if ($$tagInfo{Format}) {
|
|---|
| 785 | my $fmt = $$tagInfo{Format};
|
|---|
| 786 | if ($fmt eq 'string' or $fmt eq 'utf8') {
|
|---|
| 787 | ($val = substr($buff, $pos, $size)) =~ s/\0.*//s;
|
|---|
| 788 | $val = $exifTool->Decode($val, 'UTF8') if $fmt eq 'utf8';
|
|---|
| 789 | } elsif ($fmt eq 'float') {
|
|---|
| 790 | if ($size == 4) {
|
|---|
| 791 | $val = GetFloat(\$buff, $pos);
|
|---|
| 792 | } elsif ($size == 8) {
|
|---|
| 793 | $val = GetDouble(\$buff, $pos);
|
|---|
| 794 | } else {
|
|---|
| 795 | $exifTool->Warn("Illegal float size ($size)");
|
|---|
| 796 | }
|
|---|
| 797 | } else {
|
|---|
| 798 | my @vals = unpack("x${pos}C$size", $buff);
|
|---|
| 799 | $val = 0;
|
|---|
| 800 | if ($fmt eq 'signed' or $fmt eq 'date') {
|
|---|
| 801 | my $over = 1;
|
|---|
| 802 | foreach (@vals) {
|
|---|
| 803 | $val = $val * 256 + $_;
|
|---|
| 804 | $over *= 256;
|
|---|
| 805 | }
|
|---|
| 806 | # interpret negative numbers
|
|---|
| 807 | $val -= $over if $vals[0] & 0x80;
|
|---|
| 808 | # convert dates (nanoseconds since 2001:01:01)
|
|---|
| 809 | if ($fmt eq 'date') {
|
|---|
| 810 | my $t = $val / 1e9;
|
|---|
| 811 | my $f = $t - int($t); # fractional seconds
|
|---|
| 812 | $f =~ s/^\d+//; # remove leading zero
|
|---|
| 813 | # (8 leap days between 1970 and 2001)
|
|---|
| 814 | $t += (((2001-1970)*365+8)*24*3600);
|
|---|
| 815 | $val = Image::ExifTool::ConvertUnixTime($t) . $f . 'Z';
|
|---|
| 816 | }
|
|---|
| 817 | } else { # must be unsigned
|
|---|
| 818 | $val = $val * 256 + $_ foreach @vals;
|
|---|
| 819 | }
|
|---|
| 820 | }
|
|---|
| 821 | # set group1 to Track/Chapter number
|
|---|
| 822 | if ($$tagInfo{Name} eq 'TrackNumber') {
|
|---|
| 823 | $$exifTool{SET_GROUP1} = 'Track' . $val;
|
|---|
| 824 | $trackIndent = $$exifTool{INDENT};
|
|---|
| 825 | }
|
|---|
| 826 | }
|
|---|
| 827 | my %parms = (
|
|---|
| 828 | DataPt => \$buff,
|
|---|
| 829 | DataPos => $dataPos,
|
|---|
| 830 | Start => $pos,
|
|---|
| 831 | Size => $size,
|
|---|
| 832 | );
|
|---|
| 833 | if ($$tagInfo{NoSave}) {
|
|---|
| 834 | $exifTool->VerboseInfo($tag, $tagInfo, Value => $val, %parms) if $verbose;
|
|---|
| 835 | } else {
|
|---|
| 836 | $exifTool->HandleTag($tagTablePtr, $tag, $val, %parms);
|
|---|
| 837 | }
|
|---|
| 838 | $pos += $size; # step to next element
|
|---|
| 839 | }
|
|---|
| 840 | $$exifTool{INDENT} = $oldIndent;
|
|---|
| 841 | delete $$exifTool{SET_GROUP1};
|
|---|
| 842 | # override file type if necessary based on existing track types
|
|---|
| 843 | unless ($trackTypes{0x01} or $trackTypes{0x03}) { # video or complex?
|
|---|
| 844 | if ($trackTypes{0x02}) { # audio?
|
|---|
| 845 | $exifTool->OverrideFileType('MKA');
|
|---|
| 846 | } elsif ($trackTypes{0x11}) { # subtitle?
|
|---|
| 847 | $exifTool->OverrideFileType('MKS');
|
|---|
| 848 | }
|
|---|
| 849 | }
|
|---|
| 850 | return 1;
|
|---|
| 851 | }
|
|---|
| 852 |
|
|---|
| 853 | 1; # end
|
|---|
| 854 |
|
|---|
| 855 | __END__
|
|---|
| 856 |
|
|---|
| 857 | =head1 NAME
|
|---|
| 858 |
|
|---|
| 859 | Image::ExifTool::Matroska - Read meta information from Matroska files
|
|---|
| 860 |
|
|---|
| 861 | =head1 SYNOPSIS
|
|---|
| 862 |
|
|---|
| 863 | This module is used by Image::ExifTool
|
|---|
| 864 |
|
|---|
| 865 | =head1 DESCRIPTION
|
|---|
| 866 |
|
|---|
| 867 | This module contains definitions required by Image::ExifTool to read meta
|
|---|
| 868 | information from Matroska multimedia files (MKA, MKV, MKS and WEBM).
|
|---|
| 869 |
|
|---|
| 870 | =head1 AUTHOR
|
|---|
| 871 |
|
|---|
| 872 | Copyright 2003-2011, Phil Harvey (phil at owl.phy.queensu.ca)
|
|---|
| 873 |
|
|---|
| 874 | This library is free software; you can redistribute it and/or modify it
|
|---|
| 875 | under the same terms as Perl itself.
|
|---|
| 876 |
|
|---|
| 877 | =head1 REFERENCES
|
|---|
| 878 |
|
|---|
| 879 | =over 4
|
|---|
| 880 |
|
|---|
| 881 | =item L<http://www.matroska.org/technical/specs/index.html>
|
|---|
| 882 |
|
|---|
| 883 | =back
|
|---|
| 884 |
|
|---|
| 885 | =head1 SEE ALSO
|
|---|
| 886 |
|
|---|
| 887 | L<Image::ExifTool::TagNames/Matroska Tags>,
|
|---|
| 888 | L<Image::ExifTool(3pm)|Image::ExifTool>
|
|---|
| 889 |
|
|---|
| 890 | =cut
|
|---|
| 891 |
|
|---|
