mambax7 /
xoopseditors
| Total Complexity | 223 |
| Total Lines | 1527 |
| Duplicated Lines | 0 % |
| Changes | 1 | ||
| Bugs | 0 | Features | 0 |
Complex classes like getid3_quicktime often do a lot of different things. To break such a class down, we need to identify a cohesive component within that class. A common approach to find such a component is to look for fields/methods that share the same prefixes, or suffixes.
Once you have determined the fields that belong together, you can apply the Extract Class refactoring. If the component makes sense as a sub-class, Extract Subclass is also a candidate, and is often faster.
While breaking up the class, it is a good idea to analyze how other classes use getid3_quicktime, and based on these observations, apply Extract Interface, too.
| 1 | <?php |
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| 25 | class getid3_quicktime extends getid3_handler |
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| 26 | { |
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| 27 | |||
| 28 | public function Analyze() |
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| 29 | { |
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| 30 | $getid3 = $this->getid3; |
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| 31 | |||
| 32 | $info = &$getid3->info; |
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| 33 | |||
| 34 | $getid3->include_module('audio.mp3'); |
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| 35 | |||
| 36 | $info['quicktime'] = []; |
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| 37 | $info_quicktime = &$info['quicktime']; |
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| 38 | |||
| 39 | $info['fileformat'] = 'quicktime'; |
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| 40 | $info_quicktime['hinting'] = false; |
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| 41 | |||
| 42 | fseek($getid3->fp, $info['avdataoffset'], SEEK_SET); |
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| 43 | |||
| 44 | $offset = $atom_counter = 0; |
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| 45 | |||
| 46 | while ($offset < $info['avdataend']) { |
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| 47 | fseek($getid3->fp, $offset, SEEK_SET); |
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| 48 | $atom_header = fread($getid3->fp, 8); |
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| 49 | |||
| 50 | $atom_size = getid3_lib::BigEndian2Int(substr($atom_header, 0, 4)); |
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| 51 | $atom_name = substr($atom_header, 4, 4); |
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| 52 | |||
| 53 | $info_quicktime[$atom_name]['name'] = $atom_name; |
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| 54 | $info_quicktime[$atom_name]['size'] = $atom_size; |
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| 55 | $info_quicktime[$atom_name]['offset'] = $offset; |
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| 56 | |||
| 57 | if (($offset + $atom_size) > $info['avdataend']) { |
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| 58 | throw new getid3_exception('Atom at offset ' . $offset . ' claims to go beyond end-of-file (length: ' . $atom_size . ' bytes)'); |
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| 59 | } |
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| 60 | |||
| 61 | if (0 == $atom_size) { |
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| 62 | // Furthermore, for historical reasons the list of atoms is optionally |
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| 63 | // terminated by a 32-bit integer set to 0. If you are writing a program |
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| 64 | // to read user data atoms, you should allow for the terminating 0. |
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| 65 | break; |
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| 66 | } |
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| 67 | |||
| 68 | switch ($atom_name) { |
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| 69 | case 'mdat': // Media DATa atom |
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| 70 | // 'mdat' contains the actual data for the audio/video |
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| 71 | if (($atom_size > 8) && (!isset($info['avdataend_tmp']) || ($info_quicktime[$atom_name]['size'] > ($info['avdataend_tmp'] - $info['avdataoffset'])))) { |
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| 72 | $info['avdataoffset'] = $info_quicktime[$atom_name]['offset'] + 8; |
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| 73 | $old_av_data_end = $info['avdataend']; |
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| 74 | $info['avdataend'] = $info_quicktime[$atom_name]['offset'] + $info_quicktime[$atom_name]['size']; |
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| 75 | |||
| 76 | //// MP3 |
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| 77 | |||
| 78 | if (!$getid3->include_module_optional('audio.mp3')) { |
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| 79 | $getid3->warning('MP3 skipped because mpeg module is missing.'); |
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| 80 | } else { |
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| 81 | // Clone getid3 - messing with offsets - better safe than sorry |
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| 82 | $clone = clone $getid3; |
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| 83 | |||
| 84 | if (getid3_mp3::MPEGaudioHeaderValid(getid3_mp3::MPEGaudioHeaderDecode(fread($clone->fp, 4)))) { |
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| 85 | $mp3 = new getid3_mp3($clone); |
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| 86 | $mp3->AnalyzeMPEGaudioInfo(); |
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| 87 | |||
| 88 | // Import from clone and destroy |
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| 89 | if (isset($clone->info['mpeg']['audio'])) { |
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| 90 | $info['mpeg']['audio'] = $clone->info['mpeg']['audio']; |
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| 91 | |||
| 92 | $info['audio']['dataformat'] = 'mp3'; |
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| 93 | $info['audio']['codec'] = (!empty($info['mpeg']['audio']['encoder']) ? $info['mpeg']['audio']['encoder'] : (!empty($info['mpeg']['audio']['codec']) ? $info['mpeg']['audio']['codec'] : (!empty($info['mpeg']['audio']['LAME']) ? 'LAME' : 'mp3'))); |
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| 94 | $info['audio']['sample_rate'] = $info['mpeg']['audio']['sample_rate']; |
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| 95 | $info['audio']['channels'] = $info['mpeg']['audio']['channels']; |
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| 96 | $info['audio']['bitrate'] = $info['mpeg']['audio']['bitrate']; |
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| 97 | $info['audio']['bitrate_mode'] = strtolower($info['mpeg']['audio']['bitrate_mode']); |
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| 98 | $info['bitrate'] = $info['audio']['bitrate']; |
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| 99 | |||
| 100 | $getid3->warning($clone->warnings()); |
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| 101 | unset($clone); |
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| 102 | } |
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| 103 | } |
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| 104 | } |
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| 105 | |||
| 106 | $info['avdataend'] = $old_av_data_end; |
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| 107 | unset($old_av_data_end); |
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| 108 | } |
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| 109 | break; |
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| 110 | |||
| 111 | case 'free': // FREE space atom |
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| 112 | case 'skip': // SKIP atom |
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| 113 | case 'wide': // 64-bit expansion placeholder atom |
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| 114 | // 'free', 'skip' and 'wide' are just padding, contains no useful data at all |
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| 115 | break; |
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| 116 | |||
| 117 | default: |
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| 118 | $atom_hierarchy = []; |
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| 119 | $info_quicktime[$atom_name] = $this->QuicktimeParseAtom($atom_name, $atom_size, fread($getid3->fp, $atom_size), $offset, $atom_hierarchy); |
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| 120 | break; |
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| 121 | } |
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| 122 | |||
| 123 | $offset += $atom_size; |
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| 124 | $atom_counter++; |
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| 125 | } |
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| 126 | |||
| 127 | if (!empty($info['avdataend_tmp'])) { |
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| 128 | // this value is assigned to a temp value and then erased because |
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| 129 | // otherwise any atoms beyond the 'mdat' atom would not get parsed |
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| 130 | $info['avdataend'] = $info['avdataend_tmp']; |
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| 131 | unset($info['avdataend_tmp']); |
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| 132 | } |
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| 133 | |||
| 134 | if (!isset($info['bitrate']) && isset($info['playtime_seconds'])) { |
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| 135 | $info['bitrate'] = (($info['avdataend'] - $info['avdataoffset']) * 8) / $info['playtime_seconds']; |
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| 136 | } |
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| 137 | |||
| 138 | if (isset($info['bitrate']) && !isset($info['audio']['bitrate']) && !isset($info_quicktime['video'])) { |
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| 139 | $info['audio']['bitrate'] = $info['bitrate']; |
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| 140 | } |
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| 141 | |||
| 142 | if (('mp4' == @$info['audio']['dataformat']) && empty($info['video']['resolution_x'])) { |
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| 143 | $info['fileformat'] = 'mp4'; |
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| 144 | $info['mime_type'] = 'audio/mp4'; |
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| 145 | unset($info['video']['dataformat']); |
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| 146 | } |
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| 147 | |||
| 148 | if (!$getid3->option_extra_info) { |
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| 149 | unset($info_quicktime['moov']); |
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| 150 | } |
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| 151 | |||
| 152 | if (empty($info['audio']['dataformat']) && !empty($info_quicktime['audio'])) { |
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| 153 | $info['audio']['dataformat'] = 'quicktime'; |
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| 154 | } |
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| 155 | |||
| 156 | if (empty($info['video']['dataformat']) && !empty($info_quicktime['video'])) { |
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| 157 | $info['video']['dataformat'] = 'quicktime'; |
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| 158 | } |
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| 159 | |||
| 160 | return true; |
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| 161 | } |
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| 162 | |||
| 163 | private function QuicktimeParseAtom($atom_name, $atom_size, $atom_data, $base_offset, &$atom_hierarchy) |
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| 164 | { |
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| 165 | // http://developer.apple.com/techpubs/quicktime/qtdevdocs/APIREF/INDEX/atomalphaindex.htm |
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| 166 | |||
| 167 | $getid3 = $this->getid3; |
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| 168 | |||
| 169 | $info = &$getid3->info; |
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| 170 | $info_quicktime = &$info['quicktime']; |
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| 171 | |||
| 172 | array_push($atom_hierarchy, $atom_name); |
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| 173 | $atom_structure['hierarchy'] = implode(' ', $atom_hierarchy); |
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| 174 | $atom_structure['name'] = $atom_name; |
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| 175 | $atom_structure['size'] = $atom_size; |
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| 176 | $atom_structure['offset'] = $base_offset; |
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| 177 | |||
| 178 | switch ($atom_name) { |
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| 179 | case 'moov': // MOVie container atom |
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| 180 | case 'trak': // TRAcK container atom |
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| 181 | case 'clip': // CLIPping container atom |
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| 182 | case 'matt': // track MATTe container atom |
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| 183 | case 'edts': // EDiTS container atom |
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| 184 | case 'tref': // Track REFerence container atom |
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| 185 | case 'mdia': // MeDIA container atom |
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| 186 | case 'minf': // Media INFormation container atom |
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| 187 | case 'dinf': // Data INFormation container atom |
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| 188 | case 'udta': // User DaTA container atom |
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| 189 | case 'stbl': // Sample TaBLe container atom |
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| 190 | case 'cmov': // Compressed MOVie container atom |
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| 191 | case 'rmra': // Reference Movie Record Atom |
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| 192 | case 'rmda': // Reference Movie Descriptor Atom |
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| 193 | case 'gmhd': // Generic Media info HeaDer atom (seen on QTVR) |
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| 194 | $atom_structure['subatoms'] = $this->QuicktimeParseContainerAtom($atom_data, $base_offset + 8, $atom_hierarchy); |
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| 195 | break; |
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| 196 | |||
| 197 | case '�cpy': |
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| 198 | case '�day': |
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| 199 | case '�dir': |
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| 200 | case '�ed1': |
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| 201 | case '�ed2': |
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| 202 | case '�ed3': |
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| 203 | case '�ed4': |
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| 204 | case '�ed5': |
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| 205 | case '�ed6': |
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| 206 | case '�ed7': |
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| 207 | case '�ed8': |
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| 208 | case '�ed9': |
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| 209 | case '�fmt': |
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| 210 | case '�inf': |
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| 211 | case '�prd': |
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| 212 | case '�prf': |
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| 213 | case '�req': |
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| 214 | case '�src': |
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| 215 | case '�wrt': |
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| 216 | case '�nam': |
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| 217 | case '�cmt': |
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| 218 | case '�wrn': |
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| 219 | case '�hst': |
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| 220 | case '�mak': |
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| 221 | case '�mod': |
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| 222 | case '�PRD': |
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| 223 | case '�swr': |
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| 224 | case '�aut': |
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| 225 | case '�ART': |
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| 226 | case '�trk': |
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| 227 | case '�alb': |
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| 228 | case '�com': |
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| 229 | case '�gen': |
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| 230 | case '�ope': |
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| 231 | case '�url': |
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| 232 | case '�enc': |
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| 233 | $atom_structure['data_length'] = getid3_lib::BigEndian2Int(substr($atom_data, 0, 2)); |
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| 234 | $atom_structure['language_id'] = getid3_lib::BigEndian2Int(substr($atom_data, 2, 2)); |
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| 235 | $atom_structure['data'] = substr($atom_data, 4); |
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| 236 | |||
| 237 | $atom_structure['language'] = $this->QuicktimeLanguageLookup($atom_structure['language_id']); |
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| 238 | if (empty($info['comments']['language']) || (!in_array($atom_structure['language'], $info['comments']['language']))) { |
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| 239 | $info['comments']['language'][] = $atom_structure['language']; |
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| 240 | } |
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| 241 | $this->CopyToAppropriateCommentsSection($atom_name, $atom_structure['data']); |
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| 242 | break; |
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| 243 | |||
| 244 | case 'play': // auto-PLAY atom |
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| 245 | $atom_structure['autoplay'] = (bool)getid3_lib::BigEndian2Int(substr($atom_data, 0, 1)); |
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| 246 | |||
| 247 | $info_quicktime['autoplay'] = $atom_structure['autoplay']; |
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| 248 | break; |
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| 249 | |||
| 250 | case 'WLOC': // Window LOCation atom |
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| 251 | $atom_structure['location_x'] = getid3_lib::BigEndian2Int(substr($atom_data, 0, 2)); |
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| 252 | $atom_structure['location_y'] = getid3_lib::BigEndian2Int(substr($atom_data, 2, 2)); |
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| 253 | break; |
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| 254 | |||
| 255 | case 'LOOP': // LOOPing atom |
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| 256 | case 'SelO': // play SELection Only atom |
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| 257 | case 'AllF': // play ALL Frames atom |
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| 258 | $atom_structure['data'] = getid3_lib::BigEndian2Int($atom_data); |
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| 259 | break; |
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| 260 | |||
| 261 | case 'name': // |
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| 262 | case 'MCPS': // Media Cleaner PRo |
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| 263 | case '@PRM': // adobe PReMiere version |
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| 264 | case '@PRQ': // adobe PRemiere Quicktime version |
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| 265 | $atom_structure['data'] = $atom_data; |
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| 266 | break; |
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| 267 | |||
| 268 | case 'cmvd': // Compressed MooV Data atom |
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| 269 | // Code by ubergeek�ubergeek*tv based on information from |
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| 270 | // http://developer.apple.com/quicktime/icefloe/dispatch012.html |
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| 271 | $atom_structure['unCompressedSize'] = getid3_lib::BigEndian2Int(substr($atom_data, 0, 4)); |
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| 272 | |||
| 273 | $compressed_file_data = substr($atom_data, 4); |
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| 274 | if (!function_exists('gzuncompress')) { |
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| 275 | $getid3->warning('PHP does not have zlib support - cannot decompress MOV atom at offset ' . $atom_structure['offset']); |
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| 276 | } elseif ($uncompressed_header = @gzuncompress($compressed_file_data)) { |
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| 277 | $atom_structure['subatoms'] = $this->QuicktimeParseContainerAtom($uncompressed_header, 0, $atom_hierarchy); |
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| 278 | } else { |
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| 279 | $getid3->warning('Error decompressing compressed MOV atom at offset ' . $atom_structure['offset']); |
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| 280 | } |
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| 281 | break; |
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| 282 | |||
| 283 | case 'dcom': // Data COMpression atom |
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| 284 | $atom_structure['compression_id'] = $atom_data; |
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| 285 | $atom_structure['compression_text'] = getid3_quicktime::QuicktimeDCOMLookup($atom_data); |
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| 286 | break; |
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| 287 | |||
| 288 | case 'rdrf': // Reference movie Data ReFerence atom |
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| 289 | getid3_lib::ReadSequence( |
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| 290 | 'BigEndian2Int', |
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| 291 | $atom_structure, |
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| 292 | $atom_data, |
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| 293 | 0, |
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| 294 | [ |
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| 295 | 'version' => 1, |
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| 296 | 'flags_raw' => 3, |
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| 297 | 'reference_type_name' => -4, |
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| 298 | 'reference_length' => 4, |
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| 299 | ] |
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| 300 | ); |
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| 301 | |||
| 302 | $atom_structure['flags']['internal_data'] = (bool)($atom_structure['flags_raw'] & 0x000001); |
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| 303 | |||
| 304 | switch ($atom_structure['reference_type_name']) { |
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| 305 | case 'url ': |
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| 306 | $atom_structure['url'] = $this->NoNullString(substr($atom_data, 12)); |
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| 307 | break; |
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| 308 | |||
| 309 | case 'alis': |
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| 310 | $atom_structure['file_alias'] = substr($atom_data, 12); |
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| 311 | break; |
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| 312 | |||
| 313 | case 'rsrc': |
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| 314 | $atom_structure['resource_alias'] = substr($atom_data, 12); |
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| 315 | break; |
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| 316 | |||
| 317 | default: |
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| 318 | $atom_structure['data'] = substr($atom_data, 12); |
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| 319 | break; |
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| 320 | } |
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| 321 | break; |
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| 322 | |||
| 323 | case 'rmqu': // Reference Movie QUality atom |
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| 324 | $atom_structure['movie_quality'] = getid3_lib::BigEndian2Int($atom_data); |
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| 325 | break; |
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| 326 | |||
| 327 | case 'rmcs': // Reference Movie Cpu Speed atom |
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| 328 | getid3_lib::ReadSequence( |
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| 329 | 'BigEndian2Int', |
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| 330 | $atom_structure, |
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| 331 | $atom_data, |
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| 332 | 0, |
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| 333 | [ |
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| 334 | 'version' => 1, |
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| 335 | 'flags_raw' => 3, // hardcoded: 0x0000 |
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| 336 | 'cpu_speed_rating' => 2 |
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| 337 | ] |
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| 338 | ); |
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| 339 | break; |
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| 340 | |||
| 341 | case 'rmvc': // Reference Movie Version Check atom |
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| 342 | getid3_lib::ReadSequence( |
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| 343 | 'BigEndian2Int', |
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| 344 | $atom_structure, |
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| 345 | $atom_data, |
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| 346 | 0, |
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| 347 | [ |
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| 348 | 'version' => 1, |
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| 349 | 'flags_raw' => 3, // hardcoded: 0x0000 |
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| 350 | 'gestalt_selector' => -4, |
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| 351 | 'gestalt_value_mask' => 4, |
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| 352 | 'gestalt_value' => 4, |
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| 353 | 'gestalt_check_type' => 2 |
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| 354 | ] |
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| 355 | ); |
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| 356 | break; |
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| 357 | |||
| 358 | case 'rmcd': // Reference Movie Component check atom |
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| 359 | getid3_lib::ReadSequence( |
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| 360 | 'BigEndian2Int', |
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| 361 | $atom_structure, |
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| 362 | $atom_data, |
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| 363 | 0, |
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| 364 | [ |
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| 365 | 'version' => 1, |
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| 366 | 'flags_raw' => 3, // hardcoded: 0x0000 |
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| 367 | 'component_type' => -4, |
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| 368 | 'component_subtype' => -4, |
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| 369 | 'component_manufacturer' => -4, |
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| 370 | 'component_flags_raw' => 4, |
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| 371 | 'component_flags_mask' => 4, |
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| 372 | 'component_min_version' => 4 |
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| 373 | ] |
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| 374 | ); |
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| 375 | break; |
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| 376 | |||
| 377 | case 'rmdr': // Reference Movie Data Rate atom |
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| 378 | getid3_lib::ReadSequence( |
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| 379 | 'BigEndian2Int', |
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| 380 | $atom_structure, |
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| 381 | $atom_data, |
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| 382 | 0, |
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| 383 | [ |
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| 384 | 'version' => 1, |
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| 385 | 'flags_raw' => 3, // hardcoded: 0x0000 |
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| 386 | 'data_rate' => 4 |
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| 387 | ] |
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| 388 | ); |
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| 389 | |||
| 390 | $atom_structure['data_rate_bps'] = $atom_structure['data_rate'] * 10; |
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| 391 | break; |
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| 392 | |||
| 393 | case 'rmla': // Reference Movie Language Atom |
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| 394 | getid3_lib::ReadSequence( |
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| 395 | 'BigEndian2Int', |
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| 396 | $atom_structure, |
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| 397 | $atom_data, |
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| 398 | 0, |
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| 399 | [ |
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| 400 | 'version' => 1, |
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| 401 | 'flags_raw' => 3, // hardcoded: 0x0000 |
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| 402 | 'language_id' => 2 |
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| 403 | ] |
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| 404 | ); |
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| 405 | |||
| 406 | $atom_structure['language'] = $this->QuicktimeLanguageLookup($atom_structure['language_id']); |
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| 407 | if (empty($info['comments']['language']) || (!in_array($atom_structure['language'], $info['comments']['language']))) { |
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| 408 | $info['comments']['language'][] = $atom_structure['language']; |
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| 409 | } |
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| 410 | break; |
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| 411 | |||
| 412 | case 'rmla': // Reference Movie Language Atom |
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| 413 | getid3_lib::ReadSequence( |
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| 414 | 'BigEndian2Int', |
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| 415 | $atom_structure, |
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| 416 | $atom_data, |
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| 417 | 0, |
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| 418 | [ |
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| 419 | 'version' => 1, |
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| 420 | 'flags_raw' => 3, // hardcoded: 0x0000 |
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| 421 | 'track_id' => 2 |
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| 422 | ] |
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| 423 | ); |
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| 424 | break; |
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| 425 | |||
| 426 | case 'ptv ': // Print To Video - defines a movie's full screen mode |
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| 427 | // http://developer.apple.com/documentation/QuickTime/APIREF/SOURCESIV/at_ptv-_pg.htm |
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| 428 | getid3_lib::ReadSequence( |
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| 429 | 'BigEndian2Int', |
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| 430 | $atom_structure, |
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| 431 | $atom_data, |
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| 432 | 0, |
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| 433 | [ |
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| 434 | 'display_size_raw' => 2, |
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| 435 | 'reserved_1' => 2, // hardcoded: 0x0000 |
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| 436 | 'reserved_2' => 2, // hardcoded: 0x0000 |
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| 437 | 'slide_show_flag' => 1, |
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| 438 | 'play_on_open_flag' => 1 |
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| 439 | ] |
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| 440 | ); |
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| 441 | |||
| 442 | $atom_structure['flags']['play_on_open'] = (bool)$atom_structure['play_on_open_flag']; |
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| 443 | $atom_structure['flags']['slide_show'] = (bool)$atom_structure['slide_show_flag']; |
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| 444 | |||
| 445 | $ptv_lookup[0] = 'normal'; |
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| 446 | $ptv_lookup[1] = 'double'; |
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| 447 | $ptv_lookup[2] = 'half'; |
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| 448 | $ptv_lookup[3] = 'full'; |
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| 449 | $ptv_lookup[4] = 'current'; |
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| 450 | if (isset($ptv_lookup[$atom_structure['display_size_raw']])) { |
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| 451 | $atom_structure['display_size'] = $ptv_lookup[$atom_structure['display_size_raw']]; |
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| 452 | } else { |
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| 453 | $getid3->warning('unknown "ptv " display constant (' . $atom_structure['display_size_raw'] . ')'); |
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| 454 | } |
||
| 455 | break; |
||
| 456 | |||
| 457 | case 'stsd': // Sample Table Sample Description atom |
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| 458 | getid3_lib::ReadSequence( |
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| 459 | 'BigEndian2Int', |
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| 460 | $atom_structure, |
||
| 461 | $atom_data, |
||
| 462 | 0, |
||
| 463 | [ |
||
| 464 | 'version' => 1, |
||
| 465 | 'flags_raw' => 3, // hardcoded: 0x0000 |
||
| 466 | 'number_entries' => 4 |
||
| 467 | ] |
||
| 468 | ); |
||
| 469 | $stsd_entries_data_offset = 8; |
||
| 470 | for ($i = 0; $i < $atom_structure['number_entries']; $i++) { |
||
| 471 | getid3_lib::ReadSequence( |
||
| 472 | 'BigEndian2Int', |
||
| 473 | $atom_structure['sample_description_table'][$i], |
||
| 474 | $atom_data, |
||
| 475 | $stsd_entries_data_offset, |
||
| 476 | [ |
||
| 477 | 'size' => 4, |
||
| 478 | 'data_format' => -4, |
||
| 479 | 'reserved' => 6, |
||
| 480 | 'reference_index' => 2 |
||
| 481 | ] |
||
| 482 | ); |
||
| 483 | |||
| 484 | $atom_structure['sample_description_table'][$i]['data'] = substr($atom_data, 16 + $stsd_entries_data_offset, ($atom_structure['sample_description_table'][$i]['size'] - 4 - 4 - 6 - 2)); |
||
| 485 | $stsd_entries_data_offset += 16 + ($atom_structure['sample_description_table'][$i]['size'] - 4 - 4 - 6 - 2); |
||
| 486 | |||
| 487 | getid3_lib::ReadSequence( |
||
| 488 | 'BigEndian2Int', |
||
| 489 | $atom_structure['sample_description_table'][$i], |
||
| 490 | $atom_structure['sample_description_table'][$i]['data'], |
||
| 491 | 0, |
||
| 492 | [ |
||
| 493 | 'encoder_version' => 2, |
||
| 494 | 'encoder_revision' => 2, |
||
| 495 | 'encoder_vendor' => -4 |
||
| 496 | ] |
||
| 497 | ); |
||
| 498 | |||
| 499 | switch ($atom_structure['sample_description_table'][$i]['encoder_vendor']) { |
||
| 500 | case "\x00\x00\x00\x00": |
||
| 501 | // audio atom |
||
| 502 | getid3_lib::ReadSequence( |
||
| 503 | 'BigEndian2Int', |
||
| 504 | $atom_structure['sample_description_table'][$i], |
||
| 505 | $atom_structure['sample_description_table'][$i]['data'], |
||
| 506 | 8, |
||
| 507 | [ |
||
| 508 | 'audio_channels' => 2, |
||
| 509 | 'audio_bit_depth' => 2, |
||
| 510 | 'audio_compression_id' => 2, |
||
| 511 | 'audio_packet_size' => 2 |
||
| 512 | ] |
||
| 513 | ); |
||
| 514 | |||
| 515 | $atom_structure['sample_description_table'][$i]['audio_sample_rate'] = getid3_quicktime::FixedPoint16_16(substr($atom_structure['sample_description_table'][$i]['data'], 16, 4)); |
||
| 516 | |||
| 517 | switch ($atom_structure['sample_description_table'][$i]['data_format']) { |
||
| 518 | case 'mp4v': |
||
| 519 | $info['fileformat'] = 'mp4'; |
||
| 520 | throw new getid3_exception('This version of getID3() does not fully support MPEG-4 audio/video streams'); |
||
| 521 | |||
| 522 | case 'qtvr': |
||
| 523 | $info['video']['dataformat'] = 'quicktimevr'; |
||
| 524 | break; |
||
| 525 | |||
| 526 | case 'mp4a': |
||
| 527 | default: |
||
| 528 | $info_quicktime['audio']['codec'] = $this->QuicktimeAudioCodecLookup($atom_structure['sample_description_table'][$i]['data_format']); |
||
| 529 | $info_quicktime['audio']['sample_rate'] = $atom_structure['sample_description_table'][$i]['audio_sample_rate']; |
||
| 530 | $info_quicktime['audio']['channels'] = $atom_structure['sample_description_table'][$i]['audio_channels']; |
||
| 531 | $info_quicktime['audio']['bit_depth'] = $atom_structure['sample_description_table'][$i]['audio_bit_depth']; |
||
| 532 | $info['audio']['codec'] = $info_quicktime['audio']['codec']; |
||
| 533 | $info['audio']['sample_rate'] = $info_quicktime['audio']['sample_rate']; |
||
| 534 | $info['audio']['channels'] = $info_quicktime['audio']['channels']; |
||
| 535 | $info['audio']['bits_per_sample'] = $info_quicktime['audio']['bit_depth']; |
||
| 536 | switch ($atom_structure['sample_description_table'][$i]['data_format']) { |
||
| 537 | case 'raw ': // PCM |
||
| 538 | case 'alac': // Apple Lossless Audio Codec |
||
| 539 | $info['audio']['lossless'] = true; |
||
| 540 | break; |
||
| 541 | default: |
||
| 542 | $info['audio']['lossless'] = false; |
||
| 543 | break; |
||
| 544 | } |
||
| 545 | break; |
||
| 546 | } |
||
| 547 | break; |
||
| 548 | |||
| 549 | default: |
||
| 550 | switch ($atom_structure['sample_description_table'][$i]['data_format']) { |
||
| 551 | case 'mp4s': |
||
| 552 | $info['fileformat'] = 'mp4'; |
||
| 553 | break; |
||
| 554 | |||
| 555 | default: |
||
| 556 | // video atom |
||
| 557 | getid3_lib::ReadSequence( |
||
| 558 | 'BigEndian2Int', |
||
| 559 | $atom_structure['sample_description_table'][$i], |
||
| 560 | $atom_structure['sample_description_table'][$i]['data'], |
||
| 561 | 8, |
||
| 562 | [ |
||
| 563 | 'video_temporal_quality' => 4, |
||
| 564 | 'video_spatial_quality' => 4, |
||
| 565 | 'video_frame_width' => 2, |
||
| 566 | 'video_frame_height' => 2 |
||
| 567 | ] |
||
| 568 | ); |
||
| 569 | $atom_structure['sample_description_table'][$i]['video_resolution_x'] = getid3_quicktime::FixedPoint16_16(substr($atom_structure['sample_description_table'][$i]['data'], 20, 4)); |
||
| 570 | $atom_structure['sample_description_table'][$i]['video_resolution_y'] = getid3_quicktime::FixedPoint16_16(substr($atom_structure['sample_description_table'][$i]['data'], 24, 4)); |
||
| 571 | getid3_lib::ReadSequence( |
||
| 572 | 'BigEndian2Int', |
||
| 573 | $atom_structure['sample_description_table'][$i], |
||
| 574 | $atom_structure['sample_description_table'][$i]['data'], |
||
| 575 | 28, |
||
| 576 | [ |
||
| 577 | 'video_data_size' => 4, |
||
| 578 | 'video_frame_count' => 2, |
||
| 579 | 'video_encoder_name_len' => 1 |
||
| 580 | ] |
||
| 581 | ); |
||
| 582 | $atom_structure['sample_description_table'][$i]['video_encoder_name'] = substr($atom_structure['sample_description_table'][$i]['data'], 35, $atom_structure['sample_description_table'][$i]['video_encoder_name_len']); |
||
| 583 | $atom_structure['sample_description_table'][$i]['video_pixel_color_depth'] = getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'], 66, 2)); |
||
| 584 | $atom_structure['sample_description_table'][$i]['video_color_table_id'] = getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'], 68, 2)); |
||
| 585 | |||
| 586 | $atom_structure['sample_description_table'][$i]['video_pixel_color_type'] = (($atom_structure['sample_description_table'][$i]['video_pixel_color_depth'] > 32) ? 'grayscale' : 'color'); |
||
| 587 | $atom_structure['sample_description_table'][$i]['video_pixel_color_name'] = $this->QuicktimeColorNameLookup($atom_structure['sample_description_table'][$i]['video_pixel_color_depth']); |
||
| 588 | |||
| 589 | if ('invalid' != $atom_structure['sample_description_table'][$i]['video_pixel_color_name']) { |
||
| 590 | $info_quicktime['video']['codec_fourcc'] = $atom_structure['sample_description_table'][$i]['data_format']; |
||
| 591 | $info_quicktime['video']['codec_fourcc_lookup'] = $this->QuicktimeVideoCodecLookup($atom_structure['sample_description_table'][$i]['data_format']); |
||
| 592 | $info_quicktime['video']['codec'] = $atom_structure['sample_description_table'][$i]['video_encoder_name']; |
||
| 593 | $info_quicktime['video']['color_depth'] = $atom_structure['sample_description_table'][$i]['video_pixel_color_depth']; |
||
| 594 | $info_quicktime['video']['color_depth_name'] = $atom_structure['sample_description_table'][$i]['video_pixel_color_name']; |
||
| 595 | |||
| 596 | $info['video']['codec'] = $info_quicktime['video']['codec']; |
||
| 597 | $info['video']['bits_per_sample'] = $info_quicktime['video']['color_depth']; |
||
| 598 | } |
||
| 599 | $info['video']['lossless'] = false; |
||
| 600 | $info['video']['pixel_aspect_ratio'] = (float)1; |
||
| 601 | break; |
||
| 602 | } |
||
| 603 | break; |
||
| 604 | } |
||
| 605 | switch (strtolower($atom_structure['sample_description_table'][$i]['data_format'])) { |
||
| 606 | case 'mp4a': |
||
| 607 | $info['audio']['dataformat'] = $info_quicktime['audio']['codec'] = 'mp4'; |
||
| 608 | break; |
||
| 609 | |||
| 610 | case '3ivx': |
||
| 611 | case '3iv1': |
||
| 612 | case '3iv2': |
||
| 613 | $info['video']['dataformat'] = '3ivx'; |
||
| 614 | break; |
||
| 615 | |||
| 616 | case 'xvid': |
||
| 617 | $info['video']['dataformat'] = 'xvid'; |
||
| 618 | break; |
||
| 619 | |||
| 620 | case 'mp4v': |
||
| 621 | $info['video']['dataformat'] = 'mpeg4'; |
||
| 622 | break; |
||
| 623 | |||
| 624 | case 'divx': |
||
| 625 | case 'div1': |
||
| 626 | case 'div2': |
||
| 627 | case 'div3': |
||
| 628 | case 'div4': |
||
| 629 | case 'div5': |
||
| 630 | case 'div6': |
||
| 631 | //$TDIVXileInfo['video']['dataformat'] = 'divx'; |
||
| 632 | break; |
||
| 633 | |||
| 634 | default: |
||
| 635 | // do nothing |
||
| 636 | break; |
||
| 637 | } |
||
| 638 | unset($atom_structure['sample_description_table'][$i]['data']); |
||
| 639 | } |
||
| 640 | break; |
||
| 641 | |||
| 642 | case 'stts': // Sample Table Time-to-Sample atom |
||
| 643 | getid3_lib::ReadSequence( |
||
| 644 | 'BigEndian2Int', |
||
| 645 | $atom_structure, |
||
| 646 | $atom_data, |
||
| 647 | 0, |
||
| 648 | [ |
||
| 649 | 'version' => 1, |
||
| 650 | 'flags_raw' => 3, // hardcoded: 0x0000 |
||
| 651 | 'number_entries' => 4 |
||
| 652 | ] |
||
| 653 | ); |
||
| 654 | |||
| 655 | $stts_entries_data_offset = 8; |
||
| 656 | $frame_rate_calculator_array = []; |
||
| 657 | for ($i = 0; $i < $atom_structure['number_entries']; $i++) { |
||
| 658 | $atom_structure['time_to_sample_table'][$i]['sample_count'] = getid3_lib::BigEndian2Int(substr($atom_data, $stts_entries_data_offset, 4)); |
||
| 659 | $stts_entries_data_offset += 4; |
||
| 660 | |||
| 661 | $atom_structure['time_to_sample_table'][$i]['sample_duration'] = getid3_lib::BigEndian2Int(substr($atom_data, $stts_entries_data_offset, 4)); |
||
| 662 | $stts_entries_data_offset += 4; |
||
| 663 | |||
| 664 | if (!empty($info_quicktime['time_scale']) && (@$atoms_structure['time_to_sample_table'][$i]['sample_duration'] > 0)) { |
||
| 665 | $stts_new_framerate = $info_quicktime['time_scale'] / $atom_structure['time_to_sample_table'][$i]['sample_duration']; |
||
| 666 | if ($stts_new_framerate <= 60) { |
||
| 667 | // some atoms have durations of "1" giving a very large framerate, which probably is not right |
||
| 668 | $info['video']['frame_rate'] = max(@$info['video']['frame_rate'], $stts_new_framerate); |
||
| 669 | } |
||
| 670 | } |
||
| 671 | //@$frame_rate_calculator_array[($info_quicktime['time_scale'] / $atom_structure['time_to_sample_table'][$i]['sample_duration'])] += $atom_structure['time_to_sample_table'][$i]['sample_count']; |
||
| 672 | } |
||
| 673 | /* |
||
| 674 | $stts_frames_total = 0; |
||
| 675 | $stts_seconds_total = 0; |
||
| 676 | foreach ($frame_rate_calculator_array as $frames_per_second => $frame_count) { |
||
| 677 | if (($frames_per_second > 60) || ($frames_per_second < 1)) { |
||
| 678 | // not video FPS information, probably audio information |
||
| 679 | $stts_frames_total = 0; |
||
| 680 | $stts_seconds_total = 0; |
||
| 681 | break; |
||
| 682 | } |
||
| 683 | $stts_frames_total += $frame_count; |
||
| 684 | $stts_seconds_total += $frame_count / $frames_per_second; |
||
| 685 | } |
||
| 686 | if (($stts_frames_total > 0) && ($stts_seconds_total > 0)) { |
||
| 687 | if (($stts_frames_total / $stts_seconds_total) > @$info['video']['frame_rate']) { |
||
| 688 | $info['video']['frame_rate'] = $stts_frames_total / $stts_seconds_total; |
||
| 689 | } |
||
| 690 | } |
||
| 691 | */ |
||
| 692 | break; |
||
| 693 | |||
| 694 | case 'stss': // Sample Table Sync Sample (key frames) atom |
||
| 695 | /* |
||
| 696 | $atom_structure['version'] = getid3_lib::BigEndian2Int(substr($atom_data, 0, 1)); |
||
| 697 | $atom_structure['flags_raw'] = getid3_lib::BigEndian2Int(substr($atom_data, 1, 3)); // hardcoded: 0x0000 |
||
| 698 | $atom_structure['number_entries'] = getid3_lib::BigEndian2Int(substr($atom_data, 4, 4)); |
||
| 699 | $stss_entries_data_offset = 8; |
||
| 700 | for ($i = 0; $i < $atom_structure['number_entries']; $i++) { |
||
| 701 | $atom_structure['time_to_sample_table'][$i] = getid3_lib::BigEndian2Int(substr($atom_data, $stss_entries_data_offset, 4)); |
||
| 702 | $stss_entries_data_offset += 4; |
||
| 703 | } |
||
| 704 | */ break; |
||
| 705 | |||
| 706 | case 'stsc': // Sample Table Sample-to-Chunk atom |
||
| 707 | /* |
||
| 708 | $atom_structure['version'] = getid3_lib::BigEndian2Int(substr($atom_data, 0, 1)); |
||
| 709 | $atom_structure['flags_raw'] = getid3_lib::BigEndian2Int(substr($atom_data, 1, 3)); // hardcoded: 0x0000 |
||
| 710 | $atom_structure['number_entries'] = getid3_lib::BigEndian2Int(substr($atom_data, 4, 4)); |
||
| 711 | $stsc_entries_data_offset = 8; |
||
| 712 | for ($i = 0; $i < $atom_structure['number_entries']; $i++) { |
||
| 713 | $atom_structure['sample_to_chunk_table'][$i]['first_chunk'] = getid3_lib::BigEndian2Int(substr($atom_data, $stsc_entries_data_offset, 4)); |
||
| 714 | $stsc_entries_data_offset += 4; |
||
| 715 | $atom_structure['sample_to_chunk_table'][$i]['samples_per_chunk'] = getid3_lib::BigEndian2Int(substr($atom_data, $stsc_entries_data_offset, 4)); |
||
| 716 | $stsc_entries_data_offset += 4; |
||
| 717 | $atom_structure['sample_to_chunk_table'][$i]['sample_description'] = getid3_lib::BigEndian2Int(substr($atom_data, $stsc_entries_data_offset, 4)); |
||
| 718 | $stsc_entries_data_offset += 4; |
||
| 719 | } |
||
| 720 | */ break; |
||
| 721 | |||
| 722 | case 'stsz': // Sample Table SiZe atom |
||
| 723 | /* |
||
| 724 | $atom_structure['version'] = getid3_lib::BigEndian2Int(substr($atom_data, 0, 1)); |
||
| 725 | $atom_structure['flags_raw'] = getid3_lib::BigEndian2Int(substr($atom_data, 1, 3)); // hardcoded: 0x0000 |
||
| 726 | $atom_structure['sample_size'] = getid3_lib::BigEndian2Int(substr($atom_data, 4, 4)); |
||
| 727 | $atom_structure['number_entries'] = getid3_lib::BigEndian2Int(substr($atom_data, 8, 4)); |
||
| 728 | $stsz_entries_data_offset = 12; |
||
| 729 | if ($atom_structure['sample_size'] == 0) { |
||
| 730 | for ($i = 0; $i < $atom_structure['number_entries']; $i++) { |
||
| 731 | $atom_structure['sample_size_table'][$i] = getid3_lib::BigEndian2Int(substr($atom_data, $stsz_entries_data_offset, 4)); |
||
| 732 | $stsz_entries_data_offset += 4; |
||
| 733 | } |
||
| 734 | } |
||
| 735 | */ break; |
||
| 736 | |||
| 737 | case 'stco': // Sample Table Chunk Offset atom |
||
| 738 | /* |
||
| 739 | $atom_structure['version'] = getid3_lib::BigEndian2Int(substr($atom_data, 0, 1)); |
||
| 740 | $atom_structure['flags_raw'] = getid3_lib::BigEndian2Int(substr($atom_data, 1, 3)); // hardcoded: 0x0000 |
||
| 741 | $atom_structure['number_entries'] = getid3_lib::BigEndian2Int(substr($atom_data, 4, 4)); |
||
| 742 | $stco_entries_data_offset = 8; |
||
| 743 | for ($i = 0; $i < $atom_structure['number_entries']; $i++) { |
||
| 744 | $atom_structure['chunk_offset_table'][$i] = getid3_lib::BigEndian2Int(substr($atom_data, $stco_entries_data_offset, 4)); |
||
| 745 | $stco_entries_data_offset += 4; |
||
| 746 | } |
||
| 747 | */ break; |
||
| 748 | |||
| 749 | case 'dref': // Data REFerence atom |
||
| 750 | getid3_lib::ReadSequence( |
||
| 751 | 'BigEndian2Int', |
||
| 752 | $atom_structure, |
||
| 753 | $atom_data, |
||
| 754 | 0, |
||
| 755 | [ |
||
| 756 | 'version' => 1, |
||
| 757 | 'flags_raw' => 3, // hardcoded: 0x0000 |
||
| 758 | 'number_entries' => 4 |
||
| 759 | ] |
||
| 760 | ); |
||
| 761 | |||
| 762 | $dref_data_offset = 8; |
||
| 763 | for ($i = 0; $i < $atom_structure['number_entries']; $i++) { |
||
| 764 | getid3_lib::ReadSequence( |
||
| 765 | 'BigEndian2Int', |
||
| 766 | $atom_structure['data_references'][$i], |
||
| 767 | $atom_data, |
||
| 768 | $dref_data_offset, |
||
| 769 | [ |
||
| 770 | 'size' => 4, |
||
| 771 | 'type' => -4, |
||
| 772 | 'version' => 1, |
||
| 773 | 'flags_raw' => 3 // hardcoded: 0x0000 |
||
| 774 | ] |
||
| 775 | ); |
||
| 776 | $dref_data_offset += 12; |
||
| 777 | |||
| 778 | $atom_structure['data_references'][$i]['data'] = substr($atom_data, $dref_data_offset, ($atom_structure['data_references'][$i]['size'] - 4 - 4 - 1 - 3)); |
||
| 779 | $dref_data_offset += ($atom_structure['data_references'][$i]['size'] - 4 - 4 - 1 - 3); |
||
| 780 | |||
| 781 | $atom_structure['data_references'][$i]['flags']['self_reference'] = (bool)($atom_structure['data_references'][$i]['flags_raw'] & 0x001); |
||
| 782 | } |
||
| 783 | break; |
||
| 784 | |||
| 785 | case 'gmin': // base Media INformation atom |
||
| 786 | getid3_lib::ReadSequence( |
||
| 787 | 'BigEndian2Int', |
||
| 788 | $atom_structure, |
||
| 789 | $atom_data, |
||
| 790 | 0, |
||
| 791 | [ |
||
| 792 | 'version' => 1, |
||
| 793 | 'flags_raw' => 3, // hardcoded: 0x0000 |
||
| 794 | 'graphics_mode' => 2, |
||
| 795 | 'opcolor_red' => 2, |
||
| 796 | 'opcolor_green' => 2, |
||
| 797 | 'opcolor_blue' => 2, |
||
| 798 | 'balance' => 2, |
||
| 799 | 'reserved' => 2 |
||
| 800 | ] |
||
| 801 | ); |
||
| 802 | break; |
||
| 803 | |||
| 804 | case 'smhd': // Sound Media information HeaDer atom |
||
| 805 | getid3_lib::ReadSequence( |
||
| 806 | 'BigEndian2Int', |
||
| 807 | $atom_structure, |
||
| 808 | $atom_data, |
||
| 809 | 0, |
||
| 810 | [ |
||
| 811 | 'version' => 1, |
||
| 812 | 'flags_raw' => 3, // hardcoded: 0x0000 |
||
| 813 | 'balance' => 2, |
||
| 814 | 'reserved' => 2 |
||
| 815 | ] |
||
| 816 | ); |
||
| 817 | break; |
||
| 818 | |||
| 819 | case 'vmhd': // Video Media information HeaDer atom |
||
| 820 | getid3_lib::ReadSequence( |
||
| 821 | 'BigEndian2Int', |
||
| 822 | $atom_structure, |
||
| 823 | $atom_data, |
||
| 824 | 0, |
||
| 825 | [ |
||
| 826 | 'version' => 1, |
||
| 827 | 'flags_raw' => 3, |
||
| 828 | 'graphics_mode' => 2, |
||
| 829 | 'opcolor_red' => 2, |
||
| 830 | 'opcolor_green' => 2, |
||
| 831 | 'opcolor_blue' => 2 |
||
| 832 | ] |
||
| 833 | ); |
||
| 834 | $atom_structure['flags']['no_lean_ahead'] = (bool)($atom_structure['flags_raw'] & 0x001); |
||
| 835 | break; |
||
| 836 | |||
| 837 | case 'hdlr': // HanDLeR reference atom |
||
| 838 | getid3_lib::ReadSequence( |
||
| 839 | 'BigEndian2Int', |
||
| 840 | $atom_structure, |
||
| 841 | $atom_data, |
||
| 842 | 0, |
||
| 843 | [ |
||
| 844 | 'version' => 1, |
||
| 845 | 'flags_raw' => 3, // hardcoded: 0x0000 |
||
| 846 | 'component_type' => -4, |
||
| 847 | 'component_subtype' => -4, |
||
| 848 | 'component_manufacturer' => -4, |
||
| 849 | 'component_flags_raw' => 4, |
||
| 850 | 'component_flags_mask' => 4 |
||
| 851 | ] |
||
| 852 | ); |
||
| 853 | |||
| 854 | $atom_structure['component_name'] = substr(substr($atom_data, 24), 1); /// Pascal2String |
||
| 855 | |||
| 856 | if (('STpn' == $atom_structure['component_subtype']) && ('zzzz' == $atom_structure['component_manufacturer'])) { |
||
| 857 | $info['video']['dataformat'] = 'quicktimevr'; |
||
| 858 | } |
||
| 859 | break; |
||
| 860 | |||
| 861 | case 'mdhd': // MeDia HeaDer atom |
||
| 862 | getid3_lib::ReadSequence( |
||
| 863 | 'BigEndian2Int', |
||
| 864 | $atom_structure, |
||
| 865 | $atom_data, |
||
| 866 | 0, |
||
| 867 | [ |
||
| 868 | 'version' => 1, |
||
| 869 | 'flags_raw' => 3, // hardcoded: 0x0000 |
||
| 870 | 'creation_time' => 4, |
||
| 871 | 'modify_time' => 4, |
||
| 872 | 'time_scale' => 4, |
||
| 873 | 'duration' => 4, |
||
| 874 | 'language_id' => 2, |
||
| 875 | 'quality' => 2 |
||
| 876 | ] |
||
| 877 | ); |
||
| 878 | |||
| 879 | if (0 == $atom_structure['time_scale']) { |
||
| 880 | throw new getid3_exception('Corrupt Quicktime file: mdhd.time_scale == zero'); |
||
| 881 | } |
||
| 882 | $info_quicktime['time_scale'] = max(@$info['quicktime']['time_scale'], $atom_structure['time_scale']); |
||
| 883 | |||
| 884 | $atom_structure['creation_time_unix'] = (int)($atom_structure['creation_time'] - 2082844800); // DateMac2Unix() |
||
| 885 | $atom_structure['modify_time_unix'] = (int)($atom_structure['modify_time'] - 2082844800); // DateMac2Unix() |
||
| 886 | $atom_structure['playtime_seconds'] = $atom_structure['duration'] / $atom_structure['time_scale']; |
||
| 887 | $atom_structure['language'] = $this->QuicktimeLanguageLookup($atom_structure['language_id']); |
||
| 888 | if (empty($info['comments']['language']) || (!in_array($atom_structure['language'], $info['comments']['language']))) { |
||
| 889 | $info['comments']['language'][] = $atom_structure['language']; |
||
| 890 | } |
||
| 891 | break; |
||
| 892 | |||
| 893 | case 'pnot': // Preview atom |
||
| 894 | getid3_lib::ReadSequence( |
||
| 895 | 'BigEndian2Int', |
||
| 896 | $atom_structure, |
||
| 897 | $atom_data, |
||
| 898 | 0, |
||
| 899 | [ |
||
| 900 | 'modification_date' => 4, // "standard Macintosh format" |
||
| 901 | 'version_number' => 2, // hardcoded: 0x00 |
||
| 902 | 'atom_type' => -4, // usually: 'PICT' |
||
| 903 | 'atom_index' => 2 // usually: 0x01 |
||
| 904 | ] |
||
| 905 | ); |
||
| 906 | $atom_structure['modification_date_unix'] = (int)($atom_structure['modification_date'] - 2082844800); // DateMac2Unix() |
||
| 907 | break; |
||
| 908 | |||
| 909 | case 'crgn': // Clipping ReGioN atom |
||
| 910 | $atom_structure['region_size'] = getid3_lib::BigEndian2Int(substr($atom_data, 0, 2)); // The Region size, Region boundary box, |
||
| 911 | $atom_structure['boundary_box'] = getid3_lib::BigEndian2Int(substr($atom_data, 2, 8)); // and Clipping region data fields |
||
| 912 | $atom_structure['clipping_data'] = substr($atom_data, 10); // constitute a QuickDraw region. |
||
| 913 | break; |
||
| 914 | |||
| 915 | case 'load': // track LOAD settings atom |
||
| 916 | getid3_lib::ReadSequence( |
||
| 917 | 'BigEndian2Int', |
||
| 918 | $atom_structure, |
||
| 919 | $atom_data, |
||
| 920 | 0, |
||
| 921 | [ |
||
| 922 | 'preload_start_time' => 4, |
||
| 923 | 'preload_duration' => 4, |
||
| 924 | 'preload_flags_raw' => 4, |
||
| 925 | 'default_hints_raw' => 4 |
||
| 926 | ] |
||
| 927 | ); |
||
| 928 | |||
| 929 | $atom_structure['default_hints']['double_buffer'] = (bool)($atom_structure['default_hints_raw'] & 0x0020); |
||
| 930 | $atom_structure['default_hints']['high_quality'] = (bool)($atom_structure['default_hints_raw'] & 0x0100); |
||
| 931 | break; |
||
| 932 | |||
| 933 | case 'tmcd': // TiMe CoDe atom |
||
| 934 | case 'chap': // CHAPter list atom |
||
| 935 | case 'sync': // SYNChronization atom |
||
| 936 | case 'scpt': // tranSCriPT atom |
||
| 937 | case 'ssrc': // non-primary SouRCe atom |
||
| 938 | for ($i = 0; $i < (strlen($atom_data) % 4); $i++) { |
||
| 939 | $atom_structure['track_id'][$i] = getid3_lib::BigEndian2Int(substr($atom_data, $i * 4, 4)); |
||
| 940 | } |
||
| 941 | break; |
||
| 942 | |||
| 943 | case 'elst': // Edit LiST atom |
||
| 944 | getid3_lib::ReadSequence( |
||
| 945 | 'BigEndian2Int', |
||
| 946 | $atom_structure, |
||
| 947 | $atom_data, |
||
| 948 | 0, |
||
| 949 | [ |
||
| 950 | 'version' => 1, |
||
| 951 | 'flags_raw' => 3, // hardcoded: 0x0000 |
||
| 952 | 'number_entries' => 4 |
||
| 953 | ] |
||
| 954 | ); |
||
| 955 | |||
| 956 | for ($i = 0; $i < $atom_structure['number_entries']; $i++) { |
||
| 957 | $atom_structure['edit_list'][$i]['track_duration'] = getid3_lib::BigEndian2Int(substr($atom_data, 8 + ($i * 12) + 0, 4)); |
||
| 958 | $atom_structure['edit_list'][$i]['media_time'] = getid3_lib::BigEndian2Int(substr($atom_data, 8 + ($i * 12) + 4, 4)); |
||
| 959 | $atom_structure['edit_list'][$i]['media_rate'] = getid3_quicktime::FixedPoint16_16(substr($atom_data, 8 + ($i * 12) + 8, 4)); |
||
| 960 | } |
||
| 961 | break; |
||
| 962 | |||
| 963 | case 'kmat': // compressed MATte atom |
||
| 964 | $atom_structure['version'] = getid3_lib::BigEndian2Int(substr($atom_data, 0, 1)); |
||
| 965 | $atom_structure['flags_raw'] = getid3_lib::BigEndian2Int(substr($atom_data, 1, 3)); // hardcoded: 0x0000 |
||
| 966 | $atom_structure['matte_data_raw'] = substr($atom_data, 4); |
||
| 967 | break; |
||
| 968 | |||
| 969 | case 'ctab': // Color TABle atom |
||
| 970 | $atom_structure['color_table_seed'] = getid3_lib::BigEndian2Int(substr($atom_data, 0, 4)); // hardcoded: 0x00000000 |
||
| 971 | $atom_structure['color_table_flags'] = getid3_lib::BigEndian2Int(substr($atom_data, 4, 2)); // hardcoded: 0x8000 |
||
| 972 | $atom_structure['color_table_size'] = getid3_lib::BigEndian2Int(substr($atom_data, 6, 2)) + 1; |
||
| 973 | for ($colortableentry = 0; $colortableentry < $atom_structure['color_table_size']; $colortableentry++) { |
||
| 974 | $atom_structure['color_table'][$colortableentry]['alpha'] = getid3_lib::BigEndian2Int(substr($atom_data, 8 + ($colortableentry * 8) + 0, 2)); |
||
| 975 | $atom_structure['color_table'][$colortableentry]['red'] = getid3_lib::BigEndian2Int(substr($atom_data, 8 + ($colortableentry * 8) + 2, 2)); |
||
| 976 | $atom_structure['color_table'][$colortableentry]['green'] = getid3_lib::BigEndian2Int(substr($atom_data, 8 + ($colortableentry * 8) + 4, 2)); |
||
| 977 | $atom_structure['color_table'][$colortableentry]['blue'] = getid3_lib::BigEndian2Int(substr($atom_data, 8 + ($colortableentry * 8) + 6, 2)); |
||
| 978 | } |
||
| 979 | break; |
||
| 980 | |||
| 981 | case 'mvhd': // MoVie HeaDer atom |
||
| 982 | getid3_lib::ReadSequence( |
||
| 983 | 'BigEndian2Int', |
||
| 984 | $atom_structure, |
||
| 985 | $atom_data, |
||
| 986 | 0, |
||
| 987 | [ |
||
| 988 | 'version' => 1, |
||
| 989 | 'flags_raw' => 3, |
||
| 990 | 'creation_time' => 4, |
||
| 991 | 'modify_time' => 4, |
||
| 992 | 'time_scale' => 4, |
||
| 993 | 'duration' => 4 |
||
| 994 | ] |
||
| 995 | ); |
||
| 996 | |||
| 997 | $atom_structure['preferred_rate'] = getid3_quicktime::FixedPoint16_16(substr($atom_data, 20, 4)); |
||
| 998 | $atom_structure['preferred_volume'] = getid3_quicktime::FixedPoint8_8(substr($atom_data, 24, 2)); |
||
| 999 | $atom_structure['reserved'] = substr($atom_data, 26, 10); |
||
| 1000 | $atom_structure['matrix_a'] = getid3_quicktime::FixedPoint16_16(substr($atom_data, 36, 4)); |
||
| 1001 | $atom_structure['matrix_b'] = getid3_quicktime::FixedPoint16_16(substr($atom_data, 40, 4)); |
||
| 1002 | $atom_structure['matrix_u'] = getid3_quicktime::FixedPoint2_30(substr($atom_data, 44, 4)); |
||
| 1003 | $atom_structure['matrix_c'] = getid3_quicktime::FixedPoint16_16(substr($atom_data, 48, 4)); |
||
| 1004 | $atom_structure['matrix_d'] = getid3_quicktime::FixedPoint16_16(substr($atom_data, 52, 4)); |
||
| 1005 | $atom_structure['matrix_v'] = getid3_quicktime::FixedPoint2_30(substr($atom_data, 56, 4)); |
||
| 1006 | $atom_structure['matrix_x'] = getid3_quicktime::FixedPoint16_16(substr($atom_data, 60, 4)); |
||
| 1007 | $atom_structure['matrix_y'] = getid3_quicktime::FixedPoint16_16(substr($atom_data, 64, 4)); |
||
| 1008 | $atom_structure['matrix_w'] = getid3_quicktime::FixedPoint2_30(substr($atom_data, 68, 4)); |
||
| 1009 | |||
| 1010 | getid3_lib::ReadSequence( |
||
| 1011 | 'BigEndian2Int', |
||
| 1012 | $atom_structure, |
||
| 1013 | $atom_data, |
||
| 1014 | 72, |
||
| 1015 | [ |
||
| 1016 | 'preview_time' => 4, |
||
| 1017 | 'preview_duration' => 4, |
||
| 1018 | 'poster_time' => 4, |
||
| 1019 | 'selection_time' => 4, |
||
| 1020 | 'selection_duration' => 4, |
||
| 1021 | 'current_time' => 4, |
||
| 1022 | 'next_track_id' => 4 |
||
| 1023 | ] |
||
| 1024 | ); |
||
| 1025 | |||
| 1026 | if (0 == $atom_structure['time_scale']) { |
||
| 1027 | throw new getid3_exception('Corrupt Quicktime file: mvhd.time_scale == zero'); |
||
| 1028 | } |
||
| 1029 | |||
| 1030 | $atom_structure['creation_time_unix'] = (int)($atom_structure['creation_time'] - 2082844800); // DateMac2Unix() |
||
| 1031 | $atom_structure['modify_time_unix'] = (int)($atom_structure['modify_time'] - 2082844800); // DateMac2Unix() |
||
| 1032 | $info_quicktime['time_scale'] = max(@$info['quicktime']['time_scale'], $atom_structure['time_scale']); |
||
| 1033 | $info_quicktime['display_scale'] = $atom_structure['matrix_a']; |
||
| 1034 | $info['playtime_seconds'] = $atom_structure['duration'] / $atom_structure['time_scale']; |
||
| 1035 | break; |
||
| 1036 | |||
| 1037 | case 'tkhd': // TracK HeaDer atom |
||
| 1038 | getid3_lib::ReadSequence( |
||
| 1039 | 'BigEndian2Int', |
||
| 1040 | $atom_structure, |
||
| 1041 | $atom_data, |
||
| 1042 | 0, |
||
| 1043 | [ |
||
| 1044 | 'version' => 1, |
||
| 1045 | 'flags_raw' => 3, |
||
| 1046 | 'creation_time' => 4, |
||
| 1047 | 'modify_time' => 4, |
||
| 1048 | 'trackid' => 4, |
||
| 1049 | 'reserved1' => 4, |
||
| 1050 | 'duration' => 4, |
||
| 1051 | 'reserved2' => 8, |
||
| 1052 | 'layer' => 2, |
||
| 1053 | 'alternate_group' => 2 |
||
| 1054 | ] |
||
| 1055 | ); |
||
| 1056 | |||
| 1057 | $atom_structure['volume'] = getid3_quicktime::FixedPoint8_8(substr($atom_data, 36, 2)); |
||
| 1058 | $atom_structure['reserved3'] = getid3_lib::BigEndian2Int(substr($atom_data, 38, 2)); |
||
| 1059 | $atom_structure['matrix_a'] = getid3_quicktime::FixedPoint16_16(substr($atom_data, 40, 4)); |
||
| 1060 | $atom_structure['matrix_b'] = getid3_quicktime::FixedPoint16_16(substr($atom_data, 44, 4)); |
||
| 1061 | $atom_structure['matrix_u'] = getid3_quicktime::FixedPoint16_16(substr($atom_data, 48, 4)); |
||
| 1062 | $atom_structure['matrix_c'] = getid3_quicktime::FixedPoint16_16(substr($atom_data, 52, 4)); |
||
| 1063 | $atom_structure['matrix_v'] = getid3_quicktime::FixedPoint16_16(substr($atom_data, 56, 4)); |
||
| 1064 | $atom_structure['matrix_d'] = getid3_quicktime::FixedPoint16_16(substr($atom_data, 60, 4)); |
||
| 1065 | $atom_structure['matrix_x'] = getid3_quicktime::FixedPoint2_30(substr($atom_data, 64, 4)); |
||
| 1066 | $atom_structure['matrix_y'] = getid3_quicktime::FixedPoint2_30(substr($atom_data, 68, 4)); |
||
| 1067 | $atom_structure['matrix_w'] = getid3_quicktime::FixedPoint2_30(substr($atom_data, 72, 4)); |
||
| 1068 | $atom_structure['width'] = getid3_quicktime::FixedPoint16_16(substr($atom_data, 76, 4)); |
||
| 1069 | $atom_structure['height'] = getid3_quicktime::FixedPoint16_16(substr($atom_data, 80, 4)); |
||
| 1070 | |||
| 1071 | $atom_structure['flags']['enabled'] = (bool)($atom_structure['flags_raw'] & 0x0001); |
||
| 1072 | $atom_structure['flags']['in_movie'] = (bool)($atom_structure['flags_raw'] & 0x0002); |
||
| 1073 | $atom_structure['flags']['in_preview'] = (bool)($atom_structure['flags_raw'] & 0x0004); |
||
| 1074 | $atom_structure['flags']['in_poster'] = (bool)($atom_structure['flags_raw'] & 0x0008); |
||
| 1075 | $atom_structure['creation_time_unix'] = (int)($atom_structure['creation_time'] - 2082844800); // DateMac2Unix() |
||
| 1076 | $atom_structure['modify_time_unix'] = (int)($atom_structure['modify_time'] - 2082844800); // DateMac2Unix() |
||
| 1077 | |||
| 1078 | if (!isset($info['video']['resolution_x']) || !isset($info['video']['resolution_y'])) { |
||
| 1079 | $info['video']['resolution_x'] = $atom_structure['width']; |
||
| 1080 | $info['video']['resolution_y'] = $atom_structure['height']; |
||
| 1081 | } |
||
| 1082 | |||
| 1083 | if (1 == $atom_structure['flags']['enabled']) { |
||
| 1084 | $info['video']['resolution_x'] = max($info['video']['resolution_x'], $atom_structure['width']); |
||
| 1085 | $info['video']['resolution_y'] = max($info['video']['resolution_y'], $atom_structure['height']); |
||
| 1086 | } |
||
| 1087 | |||
| 1088 | if (!empty($info['video']['resolution_x']) && !empty($info['video']['resolution_y'])) { |
||
| 1089 | $info_quicktime['video']['resolution_x'] = $info['video']['resolution_x']; |
||
| 1090 | $info_quicktime['video']['resolution_y'] = $info['video']['resolution_y']; |
||
| 1091 | } else { |
||
| 1092 | unset($info['video']['resolution_x']); |
||
| 1093 | unset($info['video']['resolution_y']); |
||
| 1094 | unset($info_quicktime['video']); |
||
| 1095 | } |
||
| 1096 | break; |
||
| 1097 | |||
| 1098 | case 'meta': // METAdata atom |
||
| 1099 | // http://www.geocities.com/xhelmboyx/quicktime/formats/qti-layout.txt |
||
| 1100 | $next_tag_position = strpos($atom_data, '�'); |
||
| 1101 | while ($next_tag_position < strlen($atom_data)) { |
||
| 1102 | $meta_item_size = getid3_lib::BigEndian2Int(substr($atom_data, $next_tag_position - 4, 4)) - 4; |
||
| 1103 | if (-4 == $meta_item_size) { |
||
| 1104 | break; |
||
| 1105 | } |
||
| 1106 | $meta_item_raw = substr($atom_data, $next_tag_position, $meta_item_size); |
||
| 1107 | $meta_item_key = substr($meta_item_raw, 0, 4); |
||
| 1108 | $meta_item_data = substr($meta_item_raw, 20); |
||
| 1109 | $next_tag_position += $meta_item_size + 4; |
||
| 1110 | |||
| 1111 | $this->CopyToAppropriateCommentsSection($meta_item_key, $meta_item_data); |
||
| 1112 | } |
||
| 1113 | break; |
||
| 1114 | |||
| 1115 | case 'ftyp': // FileTYPe (?) atom (for MP4 it seems) |
||
| 1116 | getid3_lib::ReadSequence( |
||
| 1117 | 'BigEndian2Int', |
||
| 1118 | $atom_structure, |
||
| 1119 | $atom_data, |
||
| 1120 | 0, |
||
| 1121 | [ |
||
| 1122 | 'signature' => -4, |
||
| 1123 | 'unknown_1' => 4, |
||
| 1124 | 'fourcc' => -4, |
||
| 1125 | ] |
||
| 1126 | ); |
||
| 1127 | break; |
||
| 1128 | |||
| 1129 | case 'mdat': // Media DATa atom |
||
| 1130 | case 'free': // FREE space atom |
||
| 1131 | case 'skip': // SKIP atom |
||
| 1132 | case 'wide': // 64-bit expansion placeholder atom |
||
| 1133 | // 'mdat' data is too big to deal with, contains no useful metadata |
||
| 1134 | // 'free', 'skip' and 'wide' are just padding, contains no useful data at all |
||
| 1135 | |||
| 1136 | // When writing QuickTime files, it is sometimes necessary to update an atom's size. |
||
| 1137 | // It is impossible to update a 32-bit atom to a 64-bit atom since the 32-bit atom |
||
| 1138 | // is only 8 bytes in size, and the 64-bit atom requires 16 bytes. Therefore, QuickTime |
||
| 1139 | // puts an 8-byte placeholder atom before any atoms it may have to update the size of. |
||
| 1140 | // In this way, if the atom needs to be converted from a 32-bit to a 64-bit atom, the |
||
| 1141 | // placeholder atom can be overwritten to obtain the necessary 8 extra bytes. |
||
| 1142 | // The placeholder atom has a type of kWideAtomPlaceholderType ( 'wide' ). |
||
| 1143 | break; |
||
| 1144 | |||
| 1145 | case 'nsav': // NoSAVe atom |
||
| 1146 | // http://developer.apple.com/technotes/tn/tn2038.html |
||
| 1147 | $atom_structure['data'] = getid3_lib::BigEndian2Int(substr($atom_data, 0, 4)); |
||
| 1148 | break; |
||
| 1149 | |||
| 1150 | case 'ctyp': // Controller TYPe atom (seen on QTVR) |
||
| 1151 | // http://homepages.slingshot.co.nz/~helmboy/quicktime/formats/qtm-layout.txt |
||
| 1152 | // some controller names are: |
||
| 1153 | // 0x00 + 'std' for linear movie |
||
| 1154 | // 'none' for no controls |
||
| 1155 | $atom_structure['ctyp'] = substr($atom_data, 0, 4); |
||
| 1156 | switch ($atom_structure['ctyp']) { |
||
| 1157 | case 'qtvr': |
||
| 1158 | $info['video']['dataformat'] = 'quicktimevr'; |
||
| 1159 | break; |
||
| 1160 | } |
||
| 1161 | break; |
||
| 1162 | |||
| 1163 | case 'pano': // PANOrama track (seen on QTVR) |
||
| 1164 | $atom_structure['pano'] = getid3_lib::BigEndian2Int(substr($atom_data, 0, 4)); |
||
| 1165 | break; |
||
| 1166 | |||
| 1167 | case 'hint': // HINT track |
||
| 1168 | case 'hinf': // |
||
| 1169 | case 'hinv': // |
||
| 1170 | case 'hnti': // |
||
| 1171 | $info['quicktime']['hinting'] = true; |
||
| 1172 | break; |
||
| 1173 | |||
| 1174 | case 'imgt': // IMaGe Track reference (kQTVRImageTrackRefType) (seen on QTVR) |
||
| 1175 | for ($i = 0; $i < ($atom_structure['size'] - 8); $i += 4) { |
||
| 1176 | $atom_structure['imgt'][] = getid3_lib::BigEndian2Int(substr($atom_data, $i, 4)); |
||
| 1177 | } |
||
| 1178 | break; |
||
| 1179 | |||
| 1180 | case 'FXTC': // Something to do with Adobe After Effects (?) |
||
| 1181 | case 'PrmA': |
||
| 1182 | case 'code': |
||
| 1183 | case 'FIEL': // this is NOT "fiel" (Field Ordering) as describe here: http://developer.apple.com/documentation/QuickTime/QTFF/QTFFChap3/chapter_4_section_2.html |
||
| 1184 | // Observed-but-not-handled atom types are just listed here |
||
| 1185 | // to prevent warnings being generated |
||
| 1186 | $atom_structure['data'] = $atom_data; |
||
| 1187 | break; |
||
| 1188 | |||
| 1189 | default: |
||
| 1190 | $getid3->warning('Unknown QuickTime atom type: "' . $atom_name . '" at offset ' . $base_offset); |
||
| 1191 | $atom_structure['data'] = $atom_data; |
||
| 1192 | break; |
||
| 1193 | } |
||
| 1194 | array_pop($atom_hierarchy); |
||
| 1195 | return $atom_structure; |
||
| 1196 | } |
||
| 1197 | |||
| 1198 | private function QuicktimeParseContainerAtom($atom_data, $base_offset, &$atom_hierarchy) |
||
| 1199 | { |
||
| 1200 | if ((4 == strlen($atom_data)) && (0x00000000 == getid3_lib::BigEndian2Int($atom_data))) { |
||
| 1201 | return false; |
||
| 1202 | } |
||
| 1203 | |||
| 1204 | $atom_structure = false; |
||
| 1205 | $subatom_offset = 0; |
||
| 1206 | |||
| 1207 | while ($subatom_offset < strlen($atom_data)) { |
||
| 1208 | $subatom_size = getid3_lib::BigEndian2Int(substr($atom_data, $subatom_offset + 0, 4)); |
||
| 1209 | $subatom_name = substr($atom_data, $subatom_offset + 4, 4); |
||
| 1210 | $subatom_data = substr($atom_data, $subatom_offset + 8, $subatom_size - 8); |
||
| 1211 | |||
| 1212 | if (0 == $subatom_size) { |
||
| 1213 | // Furthermore, for historical reasons the list of atoms is optionally |
||
| 1214 | // terminated by a 32-bit integer set to 0. If you are writing a program |
||
| 1215 | // to read user data atoms, you should allow for the terminating 0. |
||
| 1216 | return $atom_structure; |
||
| 1217 | } |
||
| 1218 | |||
| 1219 | $atom_structure[] = $this->QuicktimeParseAtom($subatom_name, $subatom_size, $subatom_data, $base_offset + $subatom_offset, $atom_hierarchy); |
||
| 1220 | |||
| 1221 | $subatom_offset += $subatom_size; |
||
| 1222 | } |
||
| 1223 | return $atom_structure; |
||
| 1224 | } |
||
| 1225 | |||
| 1226 | private function CopyToAppropriateCommentsSection($key_name, $data) |
||
| 1227 | { |
||
| 1228 | // http://www.geocities.com/xhelmboyx/quicktime/formats/qtm-layout.txt |
||
| 1229 | |||
| 1230 | static $translator = [ |
||
| 1231 | '�cpy' => 'copyright', |
||
| 1232 | '�day' => 'creation_date', |
||
| 1233 | '�dir' => 'director', |
||
| 1234 | '�ed1' => 'edit1', |
||
| 1235 | '�ed2' => 'edit2', |
||
| 1236 | '�ed3' => 'edit3', |
||
| 1237 | '�ed4' => 'edit4', |
||
| 1238 | '�ed5' => 'edit5', |
||
| 1239 | '�ed6' => 'edit6', |
||
| 1240 | '�ed7' => 'edit7', |
||
| 1241 | '�ed8' => 'edit8', |
||
| 1242 | '�ed9' => 'edit9', |
||
| 1243 | '�fmt' => 'format', |
||
| 1244 | '�inf' => 'information', |
||
| 1245 | '�prd' => 'producer', |
||
| 1246 | '�prf' => 'performers', |
||
| 1247 | '�req' => 'system_requirements', |
||
| 1248 | '�src' => 'source_credit', |
||
| 1249 | '�wrt' => 'writer', |
||
| 1250 | '�nam' => 'title', |
||
| 1251 | '�cmt' => 'comment', |
||
| 1252 | '�wrn' => 'warning', |
||
| 1253 | '�hst' => 'host_computer', |
||
| 1254 | '�mak' => 'make', |
||
| 1255 | '�mod' => 'model', |
||
| 1256 | '�PRD' => 'product', |
||
| 1257 | '�swr' => 'software', |
||
| 1258 | '�aut' => 'author', |
||
| 1259 | '�ART' => 'artist', |
||
| 1260 | '�trk' => 'track', |
||
| 1261 | '�alb' => 'album', |
||
| 1262 | '�com' => 'comment', |
||
| 1263 | '�gen' => 'genre', |
||
| 1264 | '�ope' => 'composer', |
||
| 1265 | '�url' => 'url', |
||
| 1266 | '�enc' => 'encoder' |
||
| 1267 | ]; |
||
| 1268 | |||
| 1269 | if (isset($translator[$key_name])) { |
||
| 1270 | $this->getid3->info['quicktime']['comments'][$translator[$key_name]][] = $data; |
||
| 1271 | } |
||
| 1272 | |||
| 1273 | return true; |
||
| 1274 | } |
||
| 1275 | |||
| 1276 | public static function QuicktimeLanguageLookup($language_id) |
||
| 1392 | } |
||
| 1393 | |||
| 1394 | public static function QuicktimeVideoCodecLookup($codec_id) |
||
| 1395 | { |
||
| 1396 | static $lookup = [ |
||
| 1397 | '3IVX' => '3ivx MPEG-4', |
||
| 1398 | '3IV1' => '3ivx MPEG-4 v1', |
||
| 1399 | '3IV2' => '3ivx MPEG-4 v2', |
||
| 1400 | 'avr ' => 'AVR-JPEG', |
||
| 1401 | 'base' => 'Base', |
||
| 1402 | 'WRLE' => 'BMP', |
||
| 1403 | 'cvid' => 'Cinepak', |
||
| 1404 | 'clou' => 'Cloud', |
||
| 1405 | 'cmyk' => 'CMYK', |
||
| 1406 | 'yuv2' => 'ComponentVideo', |
||
| 1407 | 'yuvu' => 'ComponentVideoSigned', |
||
| 1408 | 'yuvs' => 'ComponentVideoUnsigned', |
||
| 1409 | 'dvc ' => 'DVC-NTSC', |
||
| 1410 | 'dvcp' => 'DVC-PAL', |
||
| 1411 | 'dvpn' => 'DVCPro-NTSC', |
||
| 1412 | 'dvpp' => 'DVCPro-PAL', |
||
| 1413 | 'fire' => 'Fire', |
||
| 1414 | 'flic' => 'FLC', |
||
| 1415 | 'b48r' => '48RGB', |
||
| 1416 | 'gif ' => 'GIF', |
||
| 1417 | 'smc ' => 'Graphics', |
||
| 1418 | 'h261' => 'H261', |
||
| 1419 | 'h263' => 'H263', |
||
| 1420 | 'IV41' => 'Indeo4', |
||
| 1421 | 'jpeg' => 'JPEG', |
||
| 1422 | 'PNTG' => 'MacPaint', |
||
| 1423 | 'msvc' => 'Microsoft Video1', |
||
| 1424 | 'mjpa' => 'Motion JPEG-A', |
||
| 1425 | 'mjpb' => 'Motion JPEG-B', |
||
| 1426 | 'myuv' => 'MPEG YUV420', |
||
| 1427 | 'dmb1' => 'OpenDML JPEG', |
||
| 1428 | 'kpcd' => 'PhotoCD', |
||
| 1429 | '8BPS' => 'Planar RGB', |
||
| 1430 | 'png ' => 'PNG', |
||
| 1431 | 'qdrw' => 'QuickDraw', |
||
| 1432 | 'qdgx' => 'QuickDrawGX', |
||
| 1433 | 'raw ' => 'RAW', |
||
| 1434 | '.SGI' => 'SGI', |
||
| 1435 | 'b16g' => '16Gray', |
||
| 1436 | 'b64a' => '64ARGB', |
||
| 1437 | 'SVQ1' => 'Sorenson Video 1', |
||
| 1438 | 'SVQ1' => 'Sorenson Video 3', |
||
| 1439 | 'syv9' => 'Sorenson YUV9', |
||
| 1440 | 'tga ' => 'Targa', |
||
| 1441 | 'b32a' => '32AlphaGray', |
||
| 1442 | 'tiff' => 'TIFF', |
||
| 1443 | 'path' => 'Vector', |
||
| 1444 | 'rpza' => 'Video', |
||
| 1445 | 'ripl' => 'WaterRipple', |
||
| 1446 | 'WRAW' => 'Windows RAW', |
||
| 1447 | 'y420' => 'YUV420' |
||
| 1448 | ]; |
||
| 1449 | |||
| 1450 | return (isset($lookup[$codec_id]) ? $lookup[$codec_id] : ''); |
||
| 1451 | } |
||
| 1452 | |||
| 1453 | public static function QuicktimeAudioCodecLookup($codec_id) |
||
| 1454 | { |
||
| 1455 | static $lookup = [ |
||
| 1456 | '.mp3' => 'Fraunhofer MPEG Layer-III alias', |
||
| 1457 | 'aac ' => 'ISO/IEC 14496-3 AAC', |
||
| 1458 | 'agsm' => 'Apple GSM 10:1', |
||
| 1459 | 'alac' => 'Apple Lossless Audio Codec', |
||
| 1460 | 'alaw' => 'A-law 2:1', |
||
| 1461 | 'conv' => 'Sample Format', |
||
| 1462 | 'dvca' => 'DV', |
||
| 1463 | 'dvi ' => 'DV 4:1', |
||
| 1464 | 'eqal' => 'Frequency Equalizer', |
||
| 1465 | 'fl32' => '32-bit Floating Point', |
||
| 1466 | 'fl64' => '64-bit Floating Point', |
||
| 1467 | 'ima4' => 'Interactive Multimedia Association 4:1', |
||
| 1468 | 'in24' => '24-bit Integer', |
||
| 1469 | 'in32' => '32-bit Integer', |
||
| 1470 | 'lpc ' => 'LPC 23:1', |
||
| 1471 | 'MAC3' => 'Macintosh Audio Compression/Expansion (MACE) 3:1', |
||
| 1472 | 'MAC6' => 'Macintosh Audio Compression/Expansion (MACE) 6:1', |
||
| 1473 | 'mixb' => '8-bit Mixer', |
||
| 1474 | 'mixw' => '16-bit Mixer', |
||
| 1475 | 'mp4a' => 'ISO/IEC 14496-3 AAC', |
||
| 1476 | "MS'\x00\x02" => 'Microsoft ADPCM', |
||
| 1477 | "MS'\x00\x11" => 'DV IMA', |
||
| 1478 | "MS\x00\x55" => 'Fraunhofer MPEG Layer III', |
||
| 1479 | 'NONE' => 'No Encoding', |
||
| 1480 | 'Qclp' => 'Qualcomm PureVoice', |
||
| 1481 | 'QDM2' => 'QDesign Music 2', |
||
| 1482 | 'QDMC' => 'QDesign Music 1', |
||
| 1483 | 'ratb' => '8-bit Rate', |
||
| 1484 | 'ratw' => '16-bit Rate', |
||
| 1485 | 'raw ' => 'raw PCM', |
||
| 1486 | 'sour' => 'Sound Source', |
||
| 1487 | 'sowt' => 'signed/two\'s complement (Little Endian)', |
||
| 1488 | 'str1' => 'Iomega MPEG layer II', |
||
| 1489 | 'str2' => 'Iomega MPEG *layer II', |
||
| 1490 | 'str3' => 'Iomega MPEG **layer II', |
||
| 1491 | 'str4' => 'Iomega MPEG ***layer II', |
||
| 1492 | 'twos' => 'signed/two\'s complement (Big Endian)', |
||
| 1493 | 'ulaw' => 'mu-law 2:1', |
||
| 1494 | ]; |
||
| 1495 | |||
| 1496 | return (isset($lookup[$codec_id]) ? $lookup[$codec_id] : ''); |
||
| 1497 | } |
||
| 1498 | |||
| 1499 | public static function QuicktimeDCOMLookup($compression_id) |
||
| 1500 | { |
||
| 1501 | static $lookup = [ |
||
| 1502 | 'zlib' => 'ZLib Deflate', |
||
| 1503 | 'adec' => 'Apple Compression' |
||
| 1504 | ]; |
||
| 1505 | |||
| 1506 | return (isset($lookup[$compression_id]) ? $lookup[$compression_id] : ''); |
||
| 1507 | } |
||
| 1508 | |||
| 1509 | public static function QuicktimeColorNameLookup($color_depth_id) |
||
| 1510 | { |
||
| 1511 | static $lookup = [ |
||
| 1512 | 1 => '2-color (monochrome)', |
||
| 1513 | 2 => '4-color', |
||
| 1514 | 4 => '16-color', |
||
| 1515 | 8 => '256-color', |
||
| 1516 | 16 => 'thousands (16-bit color)', |
||
| 1517 | 24 => 'millions (24-bit color)', |
||
| 1518 | 32 => 'millions+ (32-bit color)', |
||
| 1519 | 33 => 'black & white', |
||
| 1520 | 34 => '4-gray', |
||
| 1521 | 36 => '16-gray', |
||
| 1522 | 40 => '256-gray', |
||
| 1523 | ]; |
||
| 1524 | |||
| 1525 | return (isset($lookup[$color_depth_id]) ? $lookup[$color_depth_id] : 'invalid'); |
||
| 1526 | } |
||
| 1527 | |||
| 1528 | public static function NoNullString($null_terminated_string) |
||
| 1536 | } |
||
| 1537 | |||
| 1538 | public static function FixedPoint8_8($raw_data) |
||
| 1541 | } |
||
| 1542 | |||
| 1543 | public static function FixedPoint16_16($raw_data) |
||
| 1544 | { |
||
| 1546 | } |
||
| 1547 | |||
| 1548 | public static function FixedPoint2_30($raw_data) |
||
| 1549 | { |
||
| 1557 |
Loading history...
If an expression can have both
false, andnullas possible values. It is generally a good practice to always use strict comparison to clearly distinguish between those two values.