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 | },
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370 | 0xeb524 => { Name => 'ColorSpace', Binary => 1, Unknown => 1 },
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371 | 0xfb523 => { Name => 'Gamma', Format => 'float' },
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372 | 0x383e3 => { Name => 'FrameRate', Format => 'float' },
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373 | #
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374 | # Audio
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375 | #
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376 | 0x61 => {
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377 | Name => 'Audio',
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378 | SubDirectory => { TagTable => 'Image::ExifTool::Matroska::Main' },
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379 | },
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380 | 0x35 => { Name => 'AudioSampleRate', Format => 'float', Groups => { 2 => 'Audio' } },
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381 | 0x38b5 => { Name => 'OutputAudioSampleRate',Format => 'float', Groups => { 2 => 'Audio' } },
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382 | 0x1f => { Name => 'AudioChannels', Format => 'unsigned', Groups => { 2 => 'Audio' } },
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383 | 0x3d7b => {
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384 | Name => 'ChannelPositions',
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385 | Binary => 1,
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386 | Unknown => 1,
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387 | Groups => { 2 => 'Audio' },
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388 | },
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389 | 0x2264 => { Name => 'AudioBitsPerSample', Format => 'unsigned', Groups => { 2 => 'Audio' } },
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390 | #
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391 | # Content Encoding
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392 | #
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393 | 0x2d80 => {
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394 | Name => 'ContentEncodings',
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395 | SubDirectory => { TagTable => 'Image::ExifTool::Matroska::Main' },
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396 | },
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397 | 0x2240 => {
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398 | Name => 'ContentEncoding',
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399 | SubDirectory => { TagTable => 'Image::ExifTool::Matroska::Main' },
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400 | },
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401 | 0x1031 => { Name => 'ContentEncodingOrder', Format => 'unsigned', Unknown => 1 },
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402 | 0x1032 => { Name => 'ContentEncodingScope', Format => 'unsigned', Unknown => 1 },
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403 | 0x1033 => {
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404 | Name => 'ContentEncodingType',
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405 | Format => 'unsigned',
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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 |
|
---|