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view e2gallerypro/e2upload/Backend/Assets/getid3/module.audio-video.quicktime.php @ 20:1038db2374ec judyates
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| author | Robert McIntyre <rlm@mit.edu> |
|---|---|
| date | Sun, 08 Sep 2013 00:47:09 -0400 |
| parents | 3f6b44aa6b35 |
| children |
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1 <?php2 // +----------------------------------------------------------------------+3 // | PHP version 5 |4 // +----------------------------------------------------------------------+5 // | Copyright (c) 2002-2006 James Heinrich, Allan Hansen |6 // +----------------------------------------------------------------------+7 // | This source file is subject to version 2 of the GPL license, |8 // | that is bundled with this package in the file license.txt and is |9 // | available through the world-wide-web at the following url: |10 // | http://www.gnu.org/copyleft/gpl.html |11 // +----------------------------------------------------------------------+12 // | getID3() - http://getid3.sourceforge.net or http://www.getid3.org |13 // +----------------------------------------------------------------------+14 // | Authors: James Heinrich <infoØgetid3*org> |15 // | Allan Hansen <ahØartemis*dk> |16 // +----------------------------------------------------------------------+17 // | module.audio-video.quicktime.php |18 // | Module for analyzing Quicktime, MP3-in-MP4 and Apple Lossless files. |19 // | dependencies: module.audio.mp3.php |20 // | zlib support in PHP (optional) |21 // +----------------------------------------------------------------------+22 //23 // $Id: module.audio-video.quicktime.php,v 1.7 2006/11/02 16:03:28 ah Exp $27 class getid3_quicktime extends getid3_handler28 {30 public function Analyze() {32 $getid3 = $this->getid3;34 $info = &$getid3->info;36 $getid3->include_module('audio.mp3');38 $info['quicktime'] = array ();39 $info_quicktime = &$info['quicktime'];41 $info['fileformat'] = 'quicktime';42 $info_quicktime['hinting'] = false;44 fseek($getid3->fp, $info['avdataoffset'], SEEK_SET);46 $offset = $atom_counter = 0;48 while ($offset < $info['avdataend']) {50 fseek($getid3->fp, $offset, SEEK_SET);51 $atom_header = fread($getid3->fp, 8);53 $atom_size = getid3_lib::BigEndian2Int(substr($atom_header, 0, 4));54 $atom_name = substr($atom_header, 4, 4);56 $info_quicktime[$atom_name]['name'] = $atom_name;57 $info_quicktime[$atom_name]['size'] = $atom_size;58 $info_quicktime[$atom_name]['offset'] = $offset;60 if (($offset + $atom_size) > $info['avdataend']) {61 throw new getid3_exception('Atom at offset '.$offset.' claims to go beyond end-of-file (length: '.$atom_size.' bytes)');62 }64 if ($atom_size == 0) {65 // Furthermore, for historical reasons the list of atoms is optionally66 // terminated by a 32-bit integer set to 0. If you are writing a program67 // to read user data atoms, you should allow for the terminating 0.68 break;69 }71 switch ($atom_name) {73 case 'mdat': // Media DATa atom74 // 'mdat' contains the actual data for the audio/video75 if (($atom_size > 8) && (!isset($info['avdataend_tmp']) || ($info_quicktime[$atom_name]['size'] > ($info['avdataend_tmp'] - $info['avdataoffset'])))) {77 $info['avdataoffset'] = $info_quicktime[$atom_name]['offset'] + 8;78 $old_av_data_end = $info['avdataend'];79 $info['avdataend'] = $info_quicktime[$atom_name]['offset'] + $info_quicktime[$atom_name]['size'];82 //// MP384 if (!$getid3->include_module_optional('audio.mp3')) {85 $getid3->warning('MP3 skipped because mpeg module is missing.');86 }88 else {90 // Clone getid3 - messing with offsets - better safe than sorry91 $clone = clone $getid3;93 if (getid3_mp3::MPEGaudioHeaderValid(getid3_mp3::MPEGaudioHeaderDecode(fread($clone->fp, 4)))) {95 $mp3 = new getid3_mp3($clone);96 $mp3->AnalyzeMPEGaudioInfo();98 // Import from clone and destroy99 if (isset($clone->info['mpeg']['audio'])) {101 $info['mpeg']['audio'] = $clone->info['mpeg']['audio'];103 $info['audio']['dataformat'] = 'mp3';104 $info['audio']['codec'] = (!empty($info['mpeg']['audio']['encoder']) ? $info['mpeg']['audio']['encoder'] : (!empty($info['mpeg']['audio']['codec']) ? $info['mpeg']['audio']['codec'] : (!empty($info['mpeg']['audio']['LAME']) ? 'LAME' :'mp3')));105 $info['audio']['sample_rate'] = $info['mpeg']['audio']['sample_rate'];106 $info['audio']['channels'] = $info['mpeg']['audio']['channels'];107 $info['audio']['bitrate'] = $info['mpeg']['audio']['bitrate'];108 $info['audio']['bitrate_mode'] = strtolower($info['mpeg']['audio']['bitrate_mode']);109 $info['bitrate'] = $info['audio']['bitrate'];111 $getid3->warning($clone->warnings());112 unset($clone);113 }114 }115 }117 $info['avdataend'] = $old_av_data_end;118 unset($old_av_data_end);120 }121 break;124 case 'free': // FREE space atom125 case 'skip': // SKIP atom126 case 'wide': // 64-bit expansion placeholder atom127 // 'free', 'skip' and 'wide' are just padding, contains no useful data at all128 break;131 default:132 $atom_hierarchy = array ();133 $info_quicktime[$atom_name] = $this->QuicktimeParseAtom($atom_name, $atom_size, fread($getid3->fp, $atom_size), $offset, $atom_hierarchy);134 break;135 }137 $offset += $atom_size;138 $atom_counter++;139 }141 if (!empty($info['avdataend_tmp'])) {142 // this value is assigned to a temp value and then erased because143 // otherwise any atoms beyond the 'mdat' atom would not get parsed144 $info['avdataend'] = $info['avdataend_tmp'];145 unset($info['avdataend_tmp']);146 }148 if (!isset($info['bitrate']) && isset($info['playtime_seconds'])) {149 $info['bitrate'] = (($info['avdataend'] - $info['avdataoffset']) * 8) / $info['playtime_seconds'];150 }152 if (isset($info['bitrate']) && !isset($info['audio']['bitrate']) && !isset($info_quicktime['video'])) {153 $info['audio']['bitrate'] = $info['bitrate'];154 }156 if ((@$info['audio']['dataformat'] == 'mp4') && empty($info['video']['resolution_x'])) {157 $info['fileformat'] = 'mp4';158 $info['mime_type'] = 'audio/mp4';159 unset($info['video']['dataformat']);160 }162 if (!$getid3->option_extra_info) {163 unset($info_quicktime['moov']);164 }166 if (empty($info['audio']['dataformat']) && !empty($info_quicktime['audio'])) {167 $info['audio']['dataformat'] = 'quicktime';168 }170 if (empty($info['video']['dataformat']) && !empty($info_quicktime['video'])) {171 $info['video']['dataformat'] = 'quicktime';172 }174 return true;175 }179 private function QuicktimeParseAtom($atom_name, $atom_size, $atom_data, $base_offset, &$atom_hierarchy) {181 // http://developer.apple.com/techpubs/quicktime/qtdevdocs/APIREF/INDEX/atomalphaindex.htm183 $getid3 = $this->getid3;185 $info = &$getid3->info;186 $info_quicktime = &$info['quicktime'];188 array_push($atom_hierarchy, $atom_name);189 $atom_structure['hierarchy'] = implode(' ', $atom_hierarchy);190 $atom_structure['name'] = $atom_name;191 $atom_structure['size'] = $atom_size;192 $atom_structure['offset'] = $base_offset;194 switch ($atom_name) {195 case 'moov': // MOVie container atom196 case 'trak': // TRAcK container atom197 case 'clip': // CLIPping container atom198 case 'matt': // track MATTe container atom199 case 'edts': // EDiTS container atom200 case 'tref': // Track REFerence container atom201 case 'mdia': // MeDIA container atom202 case 'minf': // Media INFormation container atom203 case 'dinf': // Data INFormation container atom204 case 'udta': // User DaTA container atom205 case 'stbl': // Sample TaBLe container atom206 case 'cmov': // Compressed MOVie container atom207 case 'rmra': // Reference Movie Record Atom208 case 'rmda': // Reference Movie Descriptor Atom209 case 'gmhd': // Generic Media info HeaDer atom (seen on QTVR)210 $atom_structure['subatoms'] = $this->QuicktimeParseContainerAtom($atom_data, $base_offset + 8, $atom_hierarchy);211 break;214 case '©cpy':215 case '©day':216 case '©dir':217 case '©ed1':218 case '©ed2':219 case '©ed3':220 case '©ed4':221 case '©ed5':222 case '©ed6':223 case '©ed7':224 case '©ed8':225 case '©ed9':226 case '©fmt':227 case '©inf':228 case '©prd':229 case '©prf':230 case '©req':231 case '©src':232 case '©wrt':233 case '©nam':234 case '©cmt':235 case '©wrn':236 case '©hst':237 case '©mak':238 case '©mod':239 case '©PRD':240 case '©swr':241 case '©aut':242 case '©ART':243 case '©trk':244 case '©alb':245 case '©com':246 case '©gen':247 case '©ope':248 case '©url':249 case '©enc':250 $atom_structure['data_length'] = getid3_lib::BigEndian2Int(substr($atom_data, 0, 2));251 $atom_structure['language_id'] = getid3_lib::BigEndian2Int(substr($atom_data, 2, 2));252 $atom_structure['data'] = substr($atom_data, 4);254 $atom_structure['language'] = $this->QuicktimeLanguageLookup($atom_structure['language_id']);255 if (empty($info['comments']['language']) || (!in_array($atom_structure['language'], $info['comments']['language']))) {256 $info['comments']['language'][] = $atom_structure['language'];257 }258 $this->CopyToAppropriateCommentsSection($atom_name, $atom_structure['data']);259 break;262 case 'play': // auto-PLAY atom263 $atom_structure['autoplay'] = (bool)getid3_lib::BigEndian2Int(substr($atom_data, 0, 1));265 $info_quicktime['autoplay'] = $atom_structure['autoplay'];266 break;269 case 'WLOC': // Window LOCation atom270 $atom_structure['location_x'] = getid3_lib::BigEndian2Int(substr($atom_data, 0, 2));271 $atom_structure['location_y'] = getid3_lib::BigEndian2Int(substr($atom_data, 2, 2));272 break;275 case 'LOOP': // LOOPing atom276 case 'SelO': // play SELection Only atom277 case 'AllF': // play ALL Frames atom278 $atom_structure['data'] = getid3_lib::BigEndian2Int($atom_data);279 break;282 case 'name': //283 case 'MCPS': // Media Cleaner PRo284 case '@PRM': // adobe PReMiere version285 case '@PRQ': // adobe PRemiere Quicktime version286 $atom_structure['data'] = $atom_data;287 break;290 case 'cmvd': // Compressed MooV Data atom291 // Code by ubergeekØubergeek*tv based on information from292 // http://developer.apple.com/quicktime/icefloe/dispatch012.html293 $atom_structure['unCompressedSize'] = getid3_lib::BigEndian2Int(substr($atom_data, 0, 4));295 $compressed_file_data = substr($atom_data, 4);296 if (!function_exists('gzuncompress')) {297 $getid3->warning('PHP does not have zlib support - cannot decompress MOV atom at offset '.$atom_structure['offset']);298 }299 elseif ($uncompressed_header = @gzuncompress($compressed_file_data)) {300 $atom_structure['subatoms'] = $this->QuicktimeParseContainerAtom($uncompressed_header, 0, $atom_hierarchy);301 } else {302 $getid3->warning('Error decompressing compressed MOV atom at offset '.$atom_structure['offset']);303 }304 break;307 case 'dcom': // Data COMpression atom308 $atom_structure['compression_id'] = $atom_data;309 $atom_structure['compression_text'] = getid3_quicktime::QuicktimeDCOMLookup($atom_data);310 break;313 case 'rdrf': // Reference movie Data ReFerence atom314 getid3_lib::ReadSequence('BigEndian2Int', $atom_structure, $atom_data, 0,315 array (316 'version' => 1,317 'flags_raw' => 3,318 'reference_type_name' => -4,319 'reference_length' => 4,320 )321 );323 $atom_structure['flags']['internal_data'] = (bool)($atom_structure['flags_raw'] & 0x000001);325 switch ($atom_structure['reference_type_name']) {326 case 'url ':327 $atom_structure['url'] = $this->NoNullString(substr($atom_data, 12));328 break;330 case 'alis':331 $atom_structure['file_alias'] = substr($atom_data, 12);332 break;334 case 'rsrc':335 $atom_structure['resource_alias'] = substr($atom_data, 12);336 break;338 default:339 $atom_structure['data'] = substr($atom_data, 12);340 break;341 }342 break;345 case 'rmqu': // Reference Movie QUality atom346 $atom_structure['movie_quality'] = getid3_lib::BigEndian2Int($atom_data);347 break;350 case 'rmcs': // Reference Movie Cpu Speed atom351 getid3_lib::ReadSequence('BigEndian2Int', $atom_structure, $atom_data, 0,352 array (353 'version' => 1,354 'flags_raw' => 3, // hardcoded: 0x0000355 'cpu_speed_rating' => 2356 )357 );358 break;361 case 'rmvc': // Reference Movie Version Check atom362 getid3_lib::ReadSequence('BigEndian2Int', $atom_structure, $atom_data, 0,363 array (364 'version' => 1,365 'flags_raw' => 3, // hardcoded: 0x0000366 'gestalt_selector' => -4,367 'gestalt_value_mask' => 4,368 'gestalt_value' => 4,369 'gestalt_check_type' => 2370 )371 );372 break;375 case 'rmcd': // Reference Movie Component check atom376 getid3_lib::ReadSequence('BigEndian2Int', $atom_structure, $atom_data, 0,377 array (378 'version' => 1,379 'flags_raw' => 3, // hardcoded: 0x0000380 'component_type' => -4,381 'component_subtype' => -4,382 'component_manufacturer' => -4,383 'component_flags_raw' => 4,384 'component_flags_mask' => 4,385 'component_min_version' => 4386 )387 );388 break;391 case 'rmdr': // Reference Movie Data Rate atom392 getid3_lib::ReadSequence('BigEndian2Int', $atom_structure, $atom_data, 0,393 array (394 'version' => 1,395 'flags_raw' => 3, // hardcoded: 0x0000396 'data_rate' => 4397 )398 );400 $atom_structure['data_rate_bps'] = $atom_structure['data_rate'] * 10;401 break;404 case 'rmla': // Reference Movie Language Atom405 getid3_lib::ReadSequence('BigEndian2Int', $atom_structure, $atom_data, 0,406 array (407 'version' => 1,408 'flags_raw' => 3, // hardcoded: 0x0000409 'language_id' => 2410 )411 );413 $atom_structure['language'] = $this->QuicktimeLanguageLookup($atom_structure['language_id']);414 if (empty($info['comments']['language']) || (!in_array($atom_structure['language'], $info['comments']['language']))) {415 $info['comments']['language'][] = $atom_structure['language'];416 }417 break;420 case 'rmla': // Reference Movie Language Atom421 getid3_lib::ReadSequence('BigEndian2Int', $atom_structure, $atom_data, 0,422 array (423 'version' => 1,424 'flags_raw' => 3, // hardcoded: 0x0000425 'track_id' => 2426 )427 );428 break;431 case 'ptv ': // Print To Video - defines a movie's full screen mode432 // http://developer.apple.com/documentation/QuickTime/APIREF/SOURCESIV/at_ptv-_pg.htm433 getid3_lib::ReadSequence('BigEndian2Int', $atom_structure, $atom_data, 0,434 array (435 'display_size_raw' => 2,436 'reserved_1' => 2, // hardcoded: 0x0000437 'reserved_2' => 2, // hardcoded: 0x0000438 'slide_show_flag' => 1,439 'play_on_open_flag' => 1440 )441 );443 $atom_structure['flags']['play_on_open'] = (bool)$atom_structure['play_on_open_flag'];444 $atom_structure['flags']['slide_show'] = (bool)$atom_structure['slide_show_flag'];446 $ptv_lookup[0] = 'normal';447 $ptv_lookup[1] = 'double';448 $ptv_lookup[2] = 'half';449 $ptv_lookup[3] = 'full';450 $ptv_lookup[4] = 'current';451 if (isset($ptv_lookup[$atom_structure['display_size_raw']])) {452 $atom_structure['display_size'] = $ptv_lookup[$atom_structure['display_size_raw']];453 } else {454 $getid3->warning('unknown "ptv " display constant ('.$atom_structure['display_size_raw'].')');455 }456 break;459 case 'stsd': // Sample Table Sample Description atom460 getid3_lib::ReadSequence('BigEndian2Int', $atom_structure, $atom_data, 0,461 array (462 'version' => 1,463 'flags_raw' => 3, // hardcoded: 0x0000464 'number_entries' => 4465 )466 );467 $stsd_entries_data_offset = 8;468 for ($i = 0; $i < $atom_structure['number_entries']; $i++) {470 getid3_lib::ReadSequence('BigEndian2Int', $atom_structure['sample_description_table'][$i], $atom_data, $stsd_entries_data_offset,471 array (472 'size' => 4,473 'data_format' => -4,474 'reserved' => 6,475 'reference_index' => 2476 )477 );479 $atom_structure['sample_description_table'][$i]['data'] = substr($atom_data, 16+$stsd_entries_data_offset, ($atom_structure['sample_description_table'][$i]['size'] - 4 - 4 - 6 - 2));480 $stsd_entries_data_offset += 16 + ($atom_structure['sample_description_table'][$i]['size'] - 4 - 4 - 6 - 2);482 getid3_lib::ReadSequence('BigEndian2Int', $atom_structure['sample_description_table'][$i], $atom_structure['sample_description_table'][$i]['data'], 0,483 array (484 'encoder_version' => 2,485 'encoder_revision' => 2,486 'encoder_vendor' => -4487 )488 );490 switch ($atom_structure['sample_description_table'][$i]['encoder_vendor']) {492 case "\x00\x00\x00\x00":493 // audio atom494 getid3_lib::ReadSequence('BigEndian2Int', $atom_structure['sample_description_table'][$i], $atom_structure['sample_description_table'][$i]['data'], 8,495 array (496 'audio_channels' => 2,497 'audio_bit_depth' => 2,498 'audio_compression_id' => 2,499 'audio_packet_size' => 2500 )501 );503 $atom_structure['sample_description_table'][$i]['audio_sample_rate'] = getid3_quicktime::FixedPoint16_16(substr($atom_structure['sample_description_table'][$i]['data'], 16, 4));505 switch ($atom_structure['sample_description_table'][$i]['data_format']) {507 case 'mp4v':508 $info['fileformat'] = 'mp4';509 throw new getid3_exception('This version of getID3() does not fully support MPEG-4 audio/video streams');511 case 'qtvr':512 $info['video']['dataformat'] = 'quicktimevr';513 break;515 case 'mp4a':516 default:517 $info_quicktime['audio']['codec'] = $this->QuicktimeAudioCodecLookup($atom_structure['sample_description_table'][$i]['data_format']);518 $info_quicktime['audio']['sample_rate'] = $atom_structure['sample_description_table'][$i]['audio_sample_rate'];519 $info_quicktime['audio']['channels'] = $atom_structure['sample_description_table'][$i]['audio_channels'];520 $info_quicktime['audio']['bit_depth'] = $atom_structure['sample_description_table'][$i]['audio_bit_depth'];521 $info['audio']['codec'] = $info_quicktime['audio']['codec'];522 $info['audio']['sample_rate'] = $info_quicktime['audio']['sample_rate'];523 $info['audio']['channels'] = $info_quicktime['audio']['channels'];524 $info['audio']['bits_per_sample'] = $info_quicktime['audio']['bit_depth'];525 switch ($atom_structure['sample_description_table'][$i]['data_format']) {526 case 'raw ': // PCM527 case 'alac': // Apple Lossless Audio Codec528 $info['audio']['lossless'] = true;529 break;530 default:531 $info['audio']['lossless'] = false;532 break;533 }534 break;535 }536 break;538 default:539 switch ($atom_structure['sample_description_table'][$i]['data_format']) {540 case 'mp4s':541 $info['fileformat'] = 'mp4';542 break;544 default:545 // video atom546 getid3_lib::ReadSequence('BigEndian2Int', $atom_structure['sample_description_table'][$i], $atom_structure['sample_description_table'][$i]['data'], 8,547 array (548 'video_temporal_quality' => 4,549 'video_spatial_quality' => 4,550 'video_frame_width' => 2,551 'video_frame_height' => 2552 )553 );554 $atom_structure['sample_description_table'][$i]['video_resolution_x'] = getid3_quicktime::FixedPoint16_16(substr($atom_structure['sample_description_table'][$i]['data'], 20, 4));555 $atom_structure['sample_description_table'][$i]['video_resolution_y'] = getid3_quicktime::FixedPoint16_16(substr($atom_structure['sample_description_table'][$i]['data'], 24, 4));556 getid3_lib::ReadSequence('BigEndian2Int', $atom_structure['sample_description_table'][$i], $atom_structure['sample_description_table'][$i]['data'], 28,557 array (558 'video_data_size' => 4,559 'video_frame_count' => 2,560 'video_encoder_name_len' => 1561 )562 );563 $atom_structure['sample_description_table'][$i]['video_encoder_name'] = substr($atom_structure['sample_description_table'][$i]['data'], 35, $atom_structure['sample_description_table'][$i]['video_encoder_name_len']);564 $atom_structure['sample_description_table'][$i]['video_pixel_color_depth'] = getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'], 66, 2));565 $atom_structure['sample_description_table'][$i]['video_color_table_id'] = getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'], 68, 2));567 $atom_structure['sample_description_table'][$i]['video_pixel_color_type'] = (($atom_structure['sample_description_table'][$i]['video_pixel_color_depth'] > 32) ? 'grayscale' : 'color');568 $atom_structure['sample_description_table'][$i]['video_pixel_color_name'] = $this->QuicktimeColorNameLookup($atom_structure['sample_description_table'][$i]['video_pixel_color_depth']);570 if ($atom_structure['sample_description_table'][$i]['video_pixel_color_name'] != 'invalid') {571 $info_quicktime['video']['codec_fourcc'] = $atom_structure['sample_description_table'][$i]['data_format'];572 $info_quicktime['video']['codec_fourcc_lookup'] = $this->QuicktimeVideoCodecLookup($atom_structure['sample_description_table'][$i]['data_format']);573 $info_quicktime['video']['codec'] = $atom_structure['sample_description_table'][$i]['video_encoder_name'];574 $info_quicktime['video']['color_depth'] = $atom_structure['sample_description_table'][$i]['video_pixel_color_depth'];575 $info_quicktime['video']['color_depth_name'] = $atom_structure['sample_description_table'][$i]['video_pixel_color_name'];577 $info['video']['codec'] = $info_quicktime['video']['codec'];578 $info['video']['bits_per_sample'] = $info_quicktime['video']['color_depth'];579 }580 $info['video']['lossless'] = false;581 $info['video']['pixel_aspect_ratio'] = (float)1;582 break;583 }584 break;585 }586 switch (strtolower($atom_structure['sample_description_table'][$i]['data_format'])) {587 case 'mp4a':588 $info['audio']['dataformat'] = $info_quicktime['audio']['codec'] = 'mp4';589 break;591 case '3ivx':592 case '3iv1':593 case '3iv2':594 $info['video']['dataformat'] = '3ivx';595 break;597 case 'xvid':598 $info['video']['dataformat'] = 'xvid';599 break;601 case 'mp4v':602 $info['video']['dataformat'] = 'mpeg4';603 break;605 case 'divx':606 case 'div1':607 case 'div2':608 case 'div3':609 case 'div4':610 case 'div5':611 case 'div6':612 //$TDIVXileInfo['video']['dataformat'] = 'divx';613 break;615 default:616 // do nothing617 break;618 }619 unset($atom_structure['sample_description_table'][$i]['data']);620 }621 break;624 case 'stts': // Sample Table Time-to-Sample atom625 getid3_lib::ReadSequence('BigEndian2Int', $atom_structure, $atom_data, 0,626 array (627 'version' => 1,628 'flags_raw' => 3, // hardcoded: 0x0000629 'number_entries' => 4630 )631 );633 $stts_entries_data_offset = 8;634 $frame_rate_calculator_array = array ();635 for ($i = 0; $i < $atom_structure['number_entries']; $i++) {637 $atom_structure['time_to_sample_table'][$i]['sample_count'] = getid3_lib::BigEndian2Int(substr($atom_data, $stts_entries_data_offset, 4));638 $stts_entries_data_offset += 4;640 $atom_structure['time_to_sample_table'][$i]['sample_duration'] = getid3_lib::BigEndian2Int(substr($atom_data, $stts_entries_data_offset, 4));641 $stts_entries_data_offset += 4;643 if (!empty($info_quicktime['time_scale']) && (@$atoms_structure['time_to_sample_table'][$i]['sample_duration'] > 0)) {645 $stts_new_framerate = $info_quicktime['time_scale'] / $atom_structure['time_to_sample_table'][$i]['sample_duration'];646 if ($stts_new_framerate <= 60) {647 // some atoms have durations of "1" giving a very large framerate, which probably is not right648 $info['video']['frame_rate'] = max(@$info['video']['frame_rate'], $stts_new_framerate);649 }650 }651 //@$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'];652 }653 /*654 $stts_frames_total = 0;655 $stts_seconds_total = 0;656 foreach ($frame_rate_calculator_array as $frames_per_second => $frame_count) {657 if (($frames_per_second > 60) || ($frames_per_second < 1)) {658 // not video FPS information, probably audio information659 $stts_frames_total = 0;660 $stts_seconds_total = 0;661 break;662 }663 $stts_frames_total += $frame_count;664 $stts_seconds_total += $frame_count / $frames_per_second;665 }666 if (($stts_frames_total > 0) && ($stts_seconds_total > 0)) {667 if (($stts_frames_total / $stts_seconds_total) > @$info['video']['frame_rate']) {668 $info['video']['frame_rate'] = $stts_frames_total / $stts_seconds_total;669 }670 }671 */672 break;675 case 'stss': // Sample Table Sync Sample (key frames) atom676 /*677 $atom_structure['version'] = getid3_lib::BigEndian2Int(substr($atom_data, 0, 1));678 $atom_structure['flags_raw'] = getid3_lib::BigEndian2Int(substr($atom_data, 1, 3)); // hardcoded: 0x0000679 $atom_structure['number_entries'] = getid3_lib::BigEndian2Int(substr($atom_data, 4, 4));680 $stss_entries_data_offset = 8;681 for ($i = 0; $i < $atom_structure['number_entries']; $i++) {682 $atom_structure['time_to_sample_table'][$i] = getid3_lib::BigEndian2Int(substr($atom_data, $stss_entries_data_offset, 4));683 $stss_entries_data_offset += 4;684 }685 */686 break;689 case 'stsc': // Sample Table Sample-to-Chunk atom690 /*691 $atom_structure['version'] = getid3_lib::BigEndian2Int(substr($atom_data, 0, 1));692 $atom_structure['flags_raw'] = getid3_lib::BigEndian2Int(substr($atom_data, 1, 3)); // hardcoded: 0x0000693 $atom_structure['number_entries'] = getid3_lib::BigEndian2Int(substr($atom_data, 4, 4));694 $stsc_entries_data_offset = 8;695 for ($i = 0; $i < $atom_structure['number_entries']; $i++) {696 $atom_structure['sample_to_chunk_table'][$i]['first_chunk'] = getid3_lib::BigEndian2Int(substr($atom_data, $stsc_entries_data_offset, 4));697 $stsc_entries_data_offset += 4;698 $atom_structure['sample_to_chunk_table'][$i]['samples_per_chunk'] = getid3_lib::BigEndian2Int(substr($atom_data, $stsc_entries_data_offset, 4));699 $stsc_entries_data_offset += 4;700 $atom_structure['sample_to_chunk_table'][$i]['sample_description'] = getid3_lib::BigEndian2Int(substr($atom_data, $stsc_entries_data_offset, 4));701 $stsc_entries_data_offset += 4;702 }703 */704 break;707 case 'stsz': // Sample Table SiZe atom708 /*709 $atom_structure['version'] = getid3_lib::BigEndian2Int(substr($atom_data, 0, 1));710 $atom_structure['flags_raw'] = getid3_lib::BigEndian2Int(substr($atom_data, 1, 3)); // hardcoded: 0x0000711 $atom_structure['sample_size'] = getid3_lib::BigEndian2Int(substr($atom_data, 4, 4));712 $atom_structure['number_entries'] = getid3_lib::BigEndian2Int(substr($atom_data, 8, 4));713 $stsz_entries_data_offset = 12;714 if ($atom_structure['sample_size'] == 0) {715 for ($i = 0; $i < $atom_structure['number_entries']; $i++) {716 $atom_structure['sample_size_table'][$i] = getid3_lib::BigEndian2Int(substr($atom_data, $stsz_entries_data_offset, 4));717 $stsz_entries_data_offset += 4;718 }719 }720 */721 break;724 case 'stco': // Sample Table Chunk Offset atom725 /*726 $atom_structure['version'] = getid3_lib::BigEndian2Int(substr($atom_data, 0, 1));727 $atom_structure['flags_raw'] = getid3_lib::BigEndian2Int(substr($atom_data, 1, 3)); // hardcoded: 0x0000728 $atom_structure['number_entries'] = getid3_lib::BigEndian2Int(substr($atom_data, 4, 4));729 $stco_entries_data_offset = 8;730 for ($i = 0; $i < $atom_structure['number_entries']; $i++) {731 $atom_structure['chunk_offset_table'][$i] = getid3_lib::BigEndian2Int(substr($atom_data, $stco_entries_data_offset, 4));732 $stco_entries_data_offset += 4;733 }734 */735 break;738 case 'dref': // Data REFerence atom739 getid3_lib::ReadSequence('BigEndian2Int', $atom_structure, $atom_data, 0,740 array (741 'version' => 1,742 'flags_raw' => 3, // hardcoded: 0x0000743 'number_entries' => 4744 )745 );747 $dref_data_offset = 8;748 for ($i = 0; $i < $atom_structure['number_entries']; $i++) {750 getid3_lib::ReadSequence('BigEndian2Int', $atom_structure['data_references'][$i], $atom_data, $dref_data_offset,751 array (752 'size' => 4,753 'type' => -4,754 'version' => 1,755 'flags_raw' => 3 // hardcoded: 0x0000756 )757 );758 $dref_data_offset += 12;760 $atom_structure['data_references'][$i]['data'] = substr($atom_data, $dref_data_offset, ($atom_structure['data_references'][$i]['size'] - 4 - 4 - 1 - 3));761 $dref_data_offset += ($atom_structure['data_references'][$i]['size'] - 4 - 4 - 1 - 3);763 $atom_structure['data_references'][$i]['flags']['self_reference'] = (bool)($atom_structure['data_references'][$i]['flags_raw'] & 0x001);764 }765 break;768 case 'gmin': // base Media INformation atom769 getid3_lib::ReadSequence('BigEndian2Int', $atom_structure, $atom_data, 0,770 array (771 'version' => 1,772 'flags_raw' => 3, // hardcoded: 0x0000773 'graphics_mode' => 2,774 'opcolor_red' => 2,775 'opcolor_green' => 2,776 'opcolor_blue' => 2,777 'balance' => 2,778 'reserved' => 2779 )780 );781 break;784 case 'smhd': // Sound Media information HeaDer atom785 getid3_lib::ReadSequence('BigEndian2Int', $atom_structure, $atom_data, 0,786 array (787 'version' => 1,788 'flags_raw' => 3, // hardcoded: 0x0000789 'balance' => 2,790 'reserved' => 2791 )792 );793 break;796 case 'vmhd': // Video Media information HeaDer atom797 getid3_lib::ReadSequence('BigEndian2Int', $atom_structure, $atom_data, 0,798 array (799 'version' => 1,800 'flags_raw' => 3,801 'graphics_mode' => 2,802 'opcolor_red' => 2,803 'opcolor_green' => 2,804 'opcolor_blue' => 2805 )806 );807 $atom_structure['flags']['no_lean_ahead'] = (bool)($atom_structure['flags_raw'] & 0x001);808 break;811 case 'hdlr': // HanDLeR reference atom812 getid3_lib::ReadSequence('BigEndian2Int', $atom_structure, $atom_data, 0,813 array (814 'version' => 1,815 'flags_raw' => 3, // hardcoded: 0x0000816 'component_type' => -4,817 'component_subtype' => -4,818 'component_manufacturer' => -4,819 'component_flags_raw' => 4,820 'component_flags_mask' => 4821 )822 );824 $atom_structure['component_name'] = substr(substr($atom_data, 24), 1); /// Pascal2String826 if (($atom_structure['component_subtype'] == 'STpn') && ($atom_structure['component_manufacturer'] == 'zzzz')) {827 $info['video']['dataformat'] = 'quicktimevr';828 }829 break;832 case 'mdhd': // MeDia HeaDer atom833 getid3_lib::ReadSequence('BigEndian2Int', $atom_structure, $atom_data, 0,834 array (835 'version' => 1,836 'flags_raw' => 3, // hardcoded: 0x0000837 'creation_time' => 4,838 'modify_time' => 4,839 'time_scale' => 4,840 'duration' => 4,841 'language_id' => 2,842 'quality' => 2843 )844 );846 if ($atom_structure['time_scale'] == 0) {847 throw new getid3_exception('Corrupt Quicktime file: mdhd.time_scale == zero');848 }849 $info_quicktime['time_scale'] = max(@$info['quicktime']['time_scale'], $atom_structure['time_scale']);851 $atom_structure['creation_time_unix'] = (int)($atom_structure['creation_time'] - 2082844800); // DateMac2Unix()852 $atom_structure['modify_time_unix'] = (int)($atom_structure['modify_time'] - 2082844800); // DateMac2Unix()853 $atom_structure['playtime_seconds'] = $atom_structure['duration'] / $atom_structure['time_scale'];854 $atom_structure['language'] = $this->QuicktimeLanguageLookup($atom_structure['language_id']);855 if (empty($info['comments']['language']) || (!in_array($atom_structure['language'], $info['comments']['language']))) {856 $info['comments']['language'][] = $atom_structure['language'];857 }858 break;861 case 'pnot': // Preview atom862 getid3_lib::ReadSequence('BigEndian2Int', $atom_structure, $atom_data, 0,863 array (864 'modification_date' => 4, // "standard Macintosh format"865 'version_number' => 2, // hardcoded: 0x00866 'atom_type' => -4, // usually: 'PICT'867 'atom_index' => 2 // usually: 0x01868 )869 );870 $atom_structure['modification_date_unix'] = (int)($atom_structure['modification_date'] - 2082844800); // DateMac2Unix()871 break;874 case 'crgn': // Clipping ReGioN atom875 $atom_structure['region_size'] = getid3_lib::BigEndian2Int(substr($atom_data, 0, 2)); // The Region size, Region boundary box,876 $atom_structure['boundary_box'] = getid3_lib::BigEndian2Int(substr($atom_data, 2, 8)); // and Clipping region data fields877 $atom_structure['clipping_data'] = substr($atom_data, 10); // constitute a QuickDraw region.878 break;881 case 'load': // track LOAD settings atom882 getid3_lib::ReadSequence('BigEndian2Int', $atom_structure, $atom_data, 0,883 array (884 'preload_start_time' => 4,885 'preload_duration' => 4,886 'preload_flags_raw' => 4,887 'default_hints_raw' => 4888 )889 );891 $atom_structure['default_hints']['double_buffer'] = (bool)($atom_structure['default_hints_raw'] & 0x0020);892 $atom_structure['default_hints']['high_quality'] = (bool)($atom_structure['default_hints_raw'] & 0x0100);893 break;896 case 'tmcd': // TiMe CoDe atom897 case 'chap': // CHAPter list atom898 case 'sync': // SYNChronization atom899 case 'scpt': // tranSCriPT atom900 case 'ssrc': // non-primary SouRCe atom901 for ($i = 0; $i < (strlen($atom_data) % 4); $i++) {902 $atom_structure['track_id'][$i] = getid3_lib::BigEndian2Int(substr($atom_data, $i * 4, 4));903 }904 break;907 case 'elst': // Edit LiST atom908 getid3_lib::ReadSequence('BigEndian2Int', $atom_structure, $atom_data, 0,909 array (910 'version' => 1,911 'flags_raw' => 3, // hardcoded: 0x0000912 'number_entries' => 4913 )914 );916 for ($i = 0; $i < $atom_structure['number_entries']; $i++ ) {917 $atom_structure['edit_list'][$i]['track_duration'] = getid3_lib::BigEndian2Int(substr($atom_data, 8 + ($i * 12) + 0, 4));918 $atom_structure['edit_list'][$i]['media_time'] = getid3_lib::BigEndian2Int(substr($atom_data, 8 + ($i * 12) + 4, 4));919 $atom_structure['edit_list'][$i]['media_rate'] = getid3_quicktime::FixedPoint16_16(substr($atom_data, 8 + ($i * 12) + 8, 4));920 }921 break;924 case 'kmat': // compressed MATte atom925 $atom_structure['version'] = getid3_lib::BigEndian2Int(substr($atom_data, 0, 1));926 $atom_structure['flags_raw'] = getid3_lib::BigEndian2Int(substr($atom_data, 1, 3)); // hardcoded: 0x0000927 $atom_structure['matte_data_raw'] = substr($atom_data, 4);928 break;931 case 'ctab': // Color TABle atom932 $atom_structure['color_table_seed'] = getid3_lib::BigEndian2Int(substr($atom_data, 0, 4)); // hardcoded: 0x00000000933 $atom_structure['color_table_flags'] = getid3_lib::BigEndian2Int(substr($atom_data, 4, 2)); // hardcoded: 0x8000934 $atom_structure['color_table_size'] = getid3_lib::BigEndian2Int(substr($atom_data, 6, 2)) + 1;935 for ($colortableentry = 0; $colortableentry < $atom_structure['color_table_size']; $colortableentry++) {936 $atom_structure['color_table'][$colortableentry]['alpha'] = getid3_lib::BigEndian2Int(substr($atom_data, 8 + ($colortableentry * 8) + 0, 2));937 $atom_structure['color_table'][$colortableentry]['red'] = getid3_lib::BigEndian2Int(substr($atom_data, 8 + ($colortableentry * 8) + 2, 2));938 $atom_structure['color_table'][$colortableentry]['green'] = getid3_lib::BigEndian2Int(substr($atom_data, 8 + ($colortableentry * 8) + 4, 2));939 $atom_structure['color_table'][$colortableentry]['blue'] = getid3_lib::BigEndian2Int(substr($atom_data, 8 + ($colortableentry * 8) + 6, 2));940 }941 break;944 case 'mvhd': // MoVie HeaDer atom945 getid3_lib::ReadSequence('BigEndian2Int', $atom_structure, $atom_data, 0,946 array (947 'version' => 1,948 'flags_raw' => 3,949 'creation_time' => 4,950 'modify_time' => 4,951 'time_scale' => 4,952 'duration' => 4953 )954 );956 $atom_structure['preferred_rate'] = getid3_quicktime::FixedPoint16_16(substr($atom_data, 20, 4));957 $atom_structure['preferred_volume'] = getid3_quicktime::FixedPoint8_8(substr($atom_data, 24, 2));958 $atom_structure['reserved'] = substr($atom_data, 26, 10);959 $atom_structure['matrix_a'] = getid3_quicktime::FixedPoint16_16(substr($atom_data, 36, 4));960 $atom_structure['matrix_b'] = getid3_quicktime::FixedPoint16_16(substr($atom_data, 40, 4));961 $atom_structure['matrix_u'] = getid3_quicktime::FixedPoint2_30(substr($atom_data, 44, 4));962 $atom_structure['matrix_c'] = getid3_quicktime::FixedPoint16_16(substr($atom_data, 48, 4));963 $atom_structure['matrix_d'] = getid3_quicktime::FixedPoint16_16(substr($atom_data, 52, 4));964 $atom_structure['matrix_v'] = getid3_quicktime::FixedPoint2_30(substr($atom_data, 56, 4));965 $atom_structure['matrix_x'] = getid3_quicktime::FixedPoint16_16(substr($atom_data, 60, 4));966 $atom_structure['matrix_y'] = getid3_quicktime::FixedPoint16_16(substr($atom_data, 64, 4));967 $atom_structure['matrix_w'] = getid3_quicktime::FixedPoint2_30(substr($atom_data, 68, 4));969 getid3_lib::ReadSequence('BigEndian2Int', $atom_structure, $atom_data, 72,970 array (971 'preview_time' => 4,972 'preview_duration' => 4,973 'poster_time' => 4,974 'selection_time' => 4,975 'selection_duration' => 4,976 'current_time' => 4,977 'next_track_id' => 4978 )979 );981 if ($atom_structure['time_scale'] == 0) {982 throw new getid3_exception('Corrupt Quicktime file: mvhd.time_scale == zero');983 }985 $atom_structure['creation_time_unix'] = (int)($atom_structure['creation_time'] - 2082844800); // DateMac2Unix()986 $atom_structure['modify_time_unix'] = (int)($atom_structure['modify_time'] - 2082844800); // DateMac2Unix()987 $info_quicktime['time_scale'] = max(@$info['quicktime']['time_scale'], $atom_structure['time_scale']);988 $info_quicktime['display_scale'] = $atom_structure['matrix_a'];989 $info['playtime_seconds'] = $atom_structure['duration'] / $atom_structure['time_scale'];990 break;993 case 'tkhd': // TracK HeaDer atom994 getid3_lib::ReadSequence('BigEndian2Int', $atom_structure, $atom_data, 0,995 array (996 'version' => 1,997 'flags_raw' => 3,998 'creation_time' => 4,999 'modify_time' => 4,1000 'trackid' => 4,1001 'reserved1' => 4,1002 'duration' => 4,1003 'reserved2' => 8,1004 'layer' => 2,1005 'alternate_group' => 21006 )1007 );1009 $atom_structure['volume'] = getid3_quicktime::FixedPoint8_8(substr($atom_data, 36, 2));1010 $atom_structure['reserved3'] = getid3_lib::BigEndian2Int(substr($atom_data, 38, 2));1011 $atom_structure['matrix_a'] = getid3_quicktime::FixedPoint16_16(substr($atom_data, 40, 4));1012 $atom_structure['matrix_b'] = getid3_quicktime::FixedPoint16_16(substr($atom_data, 44, 4));1013 $atom_structure['matrix_u'] = getid3_quicktime::FixedPoint16_16(substr($atom_data, 48, 4));1014 $atom_structure['matrix_c'] = getid3_quicktime::FixedPoint16_16(substr($atom_data, 52, 4));1015 $atom_structure['matrix_v'] = getid3_quicktime::FixedPoint16_16(substr($atom_data, 56, 4));1016 $atom_structure['matrix_d'] = getid3_quicktime::FixedPoint16_16(substr($atom_data, 60, 4));1017 $atom_structure['matrix_x'] = getid3_quicktime::FixedPoint2_30(substr($atom_data, 64, 4));1018 $atom_structure['matrix_y'] = getid3_quicktime::FixedPoint2_30(substr($atom_data, 68, 4));1019 $atom_structure['matrix_w'] = getid3_quicktime::FixedPoint2_30(substr($atom_data, 72, 4));1020 $atom_structure['width'] = getid3_quicktime::FixedPoint16_16(substr($atom_data, 76, 4));1021 $atom_structure['height'] = getid3_quicktime::FixedPoint16_16(substr($atom_data, 80, 4));1023 $atom_structure['flags']['enabled'] = (bool)($atom_structure['flags_raw'] & 0x0001);1024 $atom_structure['flags']['in_movie'] = (bool)($atom_structure['flags_raw'] & 0x0002);1025 $atom_structure['flags']['in_preview'] = (bool)($atom_structure['flags_raw'] & 0x0004);1026 $atom_structure['flags']['in_poster'] = (bool)($atom_structure['flags_raw'] & 0x0008);1027 $atom_structure['creation_time_unix'] = (int)($atom_structure['creation_time'] - 2082844800); // DateMac2Unix()1028 $atom_structure['modify_time_unix'] = (int)($atom_structure['modify_time'] - 2082844800); // DateMac2Unix()1030 if (!isset($info['video']['resolution_x']) || !isset($info['video']['resolution_y'])) {1031 $info['video']['resolution_x'] = $atom_structure['width'];1032 $info['video']['resolution_y'] = $atom_structure['height'];1033 }1035 if ($atom_structure['flags']['enabled'] == 1) {1036 $info['video']['resolution_x'] = max($info['video']['resolution_x'], $atom_structure['width']);1037 $info['video']['resolution_y'] = max($info['video']['resolution_y'], $atom_structure['height']);1038 }1040 if (!empty($info['video']['resolution_x']) && !empty($info['video']['resolution_y'])) {1041 $info_quicktime['video']['resolution_x'] = $info['video']['resolution_x'];1042 $info_quicktime['video']['resolution_y'] = $info['video']['resolution_y'];1043 } else {1044 unset($info['video']['resolution_x']);1045 unset($info['video']['resolution_y']);1046 unset($info_quicktime['video']);1047 }1048 break;1051 case 'meta': // METAdata atom1052 // http://www.geocities.com/xhelmboyx/quicktime/formats/qti-layout.txt1053 $next_tag_position = strpos($atom_data, '©');1054 while ($next_tag_position < strlen($atom_data)) {1055 $meta_item_size = getid3_lib::BigEndian2Int(substr($atom_data, $next_tag_position - 4, 4)) - 4;1056 if ($meta_item_size == -4) {1057 break;1058 }1059 $meta_item_raw = substr($atom_data, $next_tag_position, $meta_item_size);1060 $meta_item_key = substr($meta_item_raw, 0, 4);1061 $meta_item_data = substr($meta_item_raw, 20);1062 $next_tag_position += $meta_item_size + 4;1064 $this->CopyToAppropriateCommentsSection($meta_item_key, $meta_item_data);1065 }1066 break;1068 case 'ftyp': // FileTYPe (?) atom (for MP4 it seems)1069 getid3_lib::ReadSequence('BigEndian2Int', $atom_structure, $atom_data, 0,1070 array (1071 'signature' => -4,1072 'unknown_1' => 4,1073 'fourcc' => -4,1074 )1075 );1076 break;1078 case 'mdat': // Media DATa atom1079 case 'free': // FREE space atom1080 case 'skip': // SKIP atom1081 case 'wide': // 64-bit expansion placeholder atom1082 // 'mdat' data is too big to deal with, contains no useful metadata1083 // 'free', 'skip' and 'wide' are just padding, contains no useful data at all1085 // When writing QuickTime files, it is sometimes necessary to update an atom's size.1086 // It is impossible to update a 32-bit atom to a 64-bit atom since the 32-bit atom1087 // is only 8 bytes in size, and the 64-bit atom requires 16 bytes. Therefore, QuickTime1088 // puts an 8-byte placeholder atom before any atoms it may have to update the size of.1089 // In this way, if the atom needs to be converted from a 32-bit to a 64-bit atom, the1090 // placeholder atom can be overwritten to obtain the necessary 8 extra bytes.1091 // The placeholder atom has a type of kWideAtomPlaceholderType ( 'wide' ).1092 break;1095 case 'nsav': // NoSAVe atom1096 // http://developer.apple.com/technotes/tn/tn2038.html1097 $atom_structure['data'] = getid3_lib::BigEndian2Int(substr($atom_data, 0, 4));1098 break;1100 case 'ctyp': // Controller TYPe atom (seen on QTVR)1101 // http://homepages.slingshot.co.nz/~helmboy/quicktime/formats/qtm-layout.txt1102 // some controller names are:1103 // 0x00 + 'std' for linear movie1104 // 'none' for no controls1105 $atom_structure['ctyp'] = substr($atom_data, 0, 4);1106 switch ($atom_structure['ctyp']) {1107 case 'qtvr':1108 $info['video']['dataformat'] = 'quicktimevr';1109 break;1110 }1111 break;1113 case 'pano': // PANOrama track (seen on QTVR)1114 $atom_structure['pano'] = getid3_lib::BigEndian2Int(substr($atom_data, 0, 4));1115 break;1117 case 'hint': // HINT track1118 case 'hinf': //1119 case 'hinv': //1120 case 'hnti': //1121 $info['quicktime']['hinting'] = true;1122 break;1124 case 'imgt': // IMaGe Track reference (kQTVRImageTrackRefType) (seen on QTVR)1125 for ($i = 0; $i < ($atom_structure['size'] - 8); $i += 4) {1126 $atom_structure['imgt'][] = getid3_lib::BigEndian2Int(substr($atom_data, $i, 4));1127 }1128 break;1130 case 'FXTC': // Something to do with Adobe After Effects (?)1131 case 'PrmA':1132 case 'code':1133 case 'FIEL': // this is NOT "fiel" (Field Ordering) as describe here: http://developer.apple.com/documentation/QuickTime/QTFF/QTFFChap3/chapter_4_section_2.html1134 // Observed-but-not-handled atom types are just listed here1135 // to prevent warnings being generated1136 $atom_structure['data'] = $atom_data;1137 break;1139 default:1140 $getid3->warning('Unknown QuickTime atom type: "'.$atom_name.'" at offset '.$base_offset);1141 $atom_structure['data'] = $atom_data;1142 break;1143 }1144 array_pop($atom_hierarchy);1145 return $atom_structure;1146 }1150 private function QuicktimeParseContainerAtom($atom_data, $base_offset, &$atom_hierarchy) {1152 if ((strlen($atom_data) == 4) && (getid3_lib::BigEndian2Int($atom_data) == 0x00000000)) {1153 return false;1154 }1156 $atom_structure = false;1157 $subatom_offset = 0;1159 while ($subatom_offset < strlen($atom_data)) {1161 $subatom_size = getid3_lib::BigEndian2Int(substr($atom_data, $subatom_offset + 0, 4));1162 $subatom_name = substr($atom_data, $subatom_offset + 4, 4);1163 $subatom_data = substr($atom_data, $subatom_offset + 8, $subatom_size - 8);1165 if ($subatom_size == 0) {1166 // Furthermore, for historical reasons the list of atoms is optionally1167 // terminated by a 32-bit integer set to 0. If you are writing a program1168 // to read user data atoms, you should allow for the terminating 0.1169 return $atom_structure;1170 }1172 $atom_structure[] = $this->QuicktimeParseAtom($subatom_name, $subatom_size, $subatom_data, $base_offset + $subatom_offset, $atom_hierarchy);1174 $subatom_offset += $subatom_size;1175 }1176 return $atom_structure;1177 }1181 private function CopyToAppropriateCommentsSection($key_name, $data) {1183 // http://www.geocities.com/xhelmboyx/quicktime/formats/qtm-layout.txt1185 static $translator = array (1186 '©cpy' => 'copyright',1187 '©day' => 'creation_date',1188 '©dir' => 'director',1189 '©ed1' => 'edit1',1190 '©ed2' => 'edit2',1191 '©ed3' => 'edit3',1192 '©ed4' => 'edit4',1193 '©ed5' => 'edit5',1194 '©ed6' => 'edit6',1195 '©ed7' => 'edit7',1196 '©ed8' => 'edit8',1197 '©ed9' => 'edit9',1198 '©fmt' => 'format',1199 '©inf' => 'information',1200 '©prd' => 'producer',1201 '©prf' => 'performers',1202 '©req' => 'system_requirements',1203 '©src' => 'source_credit',1204 '©wrt' => 'writer',1205 '©nam' => 'title',1206 '©cmt' => 'comment',1207 '©wrn' => 'warning',1208 '©hst' => 'host_computer',1209 '©mak' => 'make',1210 '©mod' => 'model',1211 '©PRD' => 'product',1212 '©swr' => 'software',1213 '©aut' => 'author',1214 '©ART' => 'artist',1215 '©trk' => 'track',1216 '©alb' => 'album',1217 '©com' => 'comment',1218 '©gen' => 'genre',1219 '©ope' => 'composer',1220 '©url' => 'url',1221 '©enc' => 'encoder'1222 );1224 if (isset($translator[$key_name])) {1225 $this->getid3->info['quicktime']['comments'][$translator[$key_name]][] = $data;1226 }1228 return true;1229 }1233 public static function QuicktimeLanguageLookup($language_id) {1235 static $lookup = array (1236 0 => 'English',1237 1 => 'French',1238 2 => 'German',1239 3 => 'Italian',1240 4 => 'Dutch',1241 5 => 'Swedish',1242 6 => 'Spanish',1243 7 => 'Danish',1244 8 => 'Portuguese',1245 9 => 'Norwegian',1246 10 => 'Hebrew',1247 11 => 'Japanese',1248 12 => 'Arabic',1249 13 => 'Finnish',1250 14 => 'Greek',1251 15 => 'Icelandic',1252 16 => 'Maltese',1253 17 => 'Turkish',1254 18 => 'Croatian',1255 19 => 'Chinese (Traditional)',1256 20 => 'Urdu',1257 21 => 'Hindi',1258 22 => 'Thai',1259 23 => 'Korean',1260 24 => 'Lithuanian',1261 25 => 'Polish',1262 26 => 'Hungarian',1263 27 => 'Estonian',1264 28 => 'Lettish',1265 28 => 'Latvian',1266 29 => 'Saamisk',1267 29 => 'Lappish',1268 30 => 'Faeroese',1269 31 => 'Farsi',1270 31 => 'Persian',1271 32 => 'Russian',1272 33 => 'Chinese (Simplified)',1273 34 => 'Flemish',1274 35 => 'Irish',1275 36 => 'Albanian',1276 37 => 'Romanian',1277 38 => 'Czech',1278 39 => 'Slovak',1279 40 => 'Slovenian',1280 41 => 'Yiddish',1281 42 => 'Serbian',1282 43 => 'Macedonian',1283 44 => 'Bulgarian',1284 45 => 'Ukrainian',1285 46 => 'Byelorussian',1286 47 => 'Uzbek',1287 48 => 'Kazakh',1288 49 => 'Azerbaijani',1289 50 => 'AzerbaijanAr',1290 51 => 'Armenian',1291 52 => 'Georgian',1292 53 => 'Moldavian',1293 54 => 'Kirghiz',1294 55 => 'Tajiki',1295 56 => 'Turkmen',1296 57 => 'Mongolian',1297 58 => 'MongolianCyr',1298 59 => 'Pashto',1299 60 => 'Kurdish',1300 61 => 'Kashmiri',1301 62 => 'Sindhi',1302 63 => 'Tibetan',1303 64 => 'Nepali',1304 65 => 'Sanskrit',1305 66 => 'Marathi',1306 67 => 'Bengali',1307 68 => 'Assamese',1308 69 => 'Gujarati',1309 70 => 'Punjabi',1310 71 => 'Oriya',1311 72 => 'Malayalam',1312 73 => 'Kannada',1313 74 => 'Tamil',1314 75 => 'Telugu',1315 76 => 'Sinhalese',1316 77 => 'Burmese',1317 78 => 'Khmer',1318 79 => 'Lao',1319 80 => 'Vietnamese',1320 81 => 'Indonesian',1321 82 => 'Tagalog',1322 83 => 'MalayRoman',1323 84 => 'MalayArabic',1324 85 => 'Amharic',1325 86 => 'Tigrinya',1326 87 => 'Galla',1327 87 => 'Oromo',1328 88 => 'Somali',1329 89 => 'Swahili',1330 90 => 'Ruanda',1331 91 => 'Rundi',1332 92 => 'Chewa',1333 93 => 'Malagasy',1334 94 => 'Esperanto',1335 128 => 'Welsh',1336 129 => 'Basque',1337 130 => 'Catalan',1338 131 => 'Latin',1339 132 => 'Quechua',1340 133 => 'Guarani',1341 134 => 'Aymara',1342 135 => 'Tatar',1343 136 => 'Uighur',1344 137 => 'Dzongkha',1345 138 => 'JavaneseRom'1346 );1348 return (isset($lookup[$language_id]) ? $lookup[$language_id] : 'invalid');1349 }1353 public static function QuicktimeVideoCodecLookup($codec_id) {1355 static $lookup = array (1356 '3IVX' => '3ivx MPEG-4',1357 '3IV1' => '3ivx MPEG-4 v1',1358 '3IV2' => '3ivx MPEG-4 v2',1359 'avr ' => 'AVR-JPEG',1360 'base' => 'Base',1361 'WRLE' => 'BMP',1362 'cvid' => 'Cinepak',1363 'clou' => 'Cloud',1364 'cmyk' => 'CMYK',1365 'yuv2' => 'ComponentVideo',1366 'yuvu' => 'ComponentVideoSigned',1367 'yuvs' => 'ComponentVideoUnsigned',1368 'dvc ' => 'DVC-NTSC',1369 'dvcp' => 'DVC-PAL',1370 'dvpn' => 'DVCPro-NTSC',1371 'dvpp' => 'DVCPro-PAL',1372 'fire' => 'Fire',1373 'flic' => 'FLC',1374 'b48r' => '48RGB',1375 'gif ' => 'GIF',1376 'smc ' => 'Graphics',1377 'h261' => 'H261',1378 'h263' => 'H263',1379 'IV41' => 'Indeo4',1380 'jpeg' => 'JPEG',1381 'PNTG' => 'MacPaint',1382 'msvc' => 'Microsoft Video1',1383 'mjpa' => 'Motion JPEG-A',1384 'mjpb' => 'Motion JPEG-B',1385 'myuv' => 'MPEG YUV420',1386 'dmb1' => 'OpenDML JPEG',1387 'kpcd' => 'PhotoCD',1388 '8BPS' => 'Planar RGB',1389 'png ' => 'PNG',1390 'qdrw' => 'QuickDraw',1391 'qdgx' => 'QuickDrawGX',1392 'raw ' => 'RAW',1393 '.SGI' => 'SGI',1394 'b16g' => '16Gray',1395 'b64a' => '64ARGB',1396 'SVQ1' => 'Sorenson Video 1',1397 'SVQ1' => 'Sorenson Video 3',1398 'syv9' => 'Sorenson YUV9',1399 'tga ' => 'Targa',1400 'b32a' => '32AlphaGray',1401 'tiff' => 'TIFF',1402 'path' => 'Vector',1403 'rpza' => 'Video',1404 'ripl' => 'WaterRipple',1405 'WRAW' => 'Windows RAW',1406 'y420' => 'YUV420'1407 );1409 return (isset($lookup[$codec_id]) ? $lookup[$codec_id] : '');1410 }1414 public static function QuicktimeAudioCodecLookup($codec_id) {1416 static $lookup = array (1417 '.mp3' => 'Fraunhofer MPEG Layer-III alias',1418 'aac ' => 'ISO/IEC 14496-3 AAC',1419 'agsm' => 'Apple GSM 10:1',1420 'alac' => 'Apple Lossless Audio Codec',1421 'alaw' => 'A-law 2:1',1422 'conv' => 'Sample Format',1423 'dvca' => 'DV',1424 'dvi ' => 'DV 4:1',1425 'eqal' => 'Frequency Equalizer',1426 'fl32' => '32-bit Floating Point',1427 'fl64' => '64-bit Floating Point',1428 'ima4' => 'Interactive Multimedia Association 4:1',1429 'in24' => '24-bit Integer',1430 'in32' => '32-bit Integer',1431 'lpc ' => 'LPC 23:1',1432 'MAC3' => 'Macintosh Audio Compression/Expansion (MACE) 3:1',1433 'MAC6' => 'Macintosh Audio Compression/Expansion (MACE) 6:1',1434 'mixb' => '8-bit Mixer',1435 'mixw' => '16-bit Mixer',1436 'mp4a' => 'ISO/IEC 14496-3 AAC',1437 "MS'\x00\x02" => 'Microsoft ADPCM',1438 "MS'\x00\x11" => 'DV IMA',1439 "MS\x00\x55" => 'Fraunhofer MPEG Layer III',1440 'NONE' => 'No Encoding',1441 'Qclp' => 'Qualcomm PureVoice',1442 'QDM2' => 'QDesign Music 2',1443 'QDMC' => 'QDesign Music 1',1444 'ratb' => '8-bit Rate',1445 'ratw' => '16-bit Rate',1446 'raw ' => 'raw PCM',1447 'sour' => 'Sound Source',1448 'sowt' => 'signed/two\'s complement (Little Endian)',1449 'str1' => 'Iomega MPEG layer II',1450 'str2' => 'Iomega MPEG *layer II',1451 'str3' => 'Iomega MPEG **layer II',1452 'str4' => 'Iomega MPEG ***layer II',1453 'twos' => 'signed/two\'s complement (Big Endian)',1454 'ulaw' => 'mu-law 2:1',1455 );1457 return (isset($lookup[$codec_id]) ? $lookup[$codec_id] : '');1458 }1462 public static function QuicktimeDCOMLookup($compression_id) {1464 static $lookup = array (1465 'zlib' => 'ZLib Deflate',1466 'adec' => 'Apple Compression'1467 );1469 return (isset($lookup[$compression_id]) ? $lookup[$compression_id] : '');1470 }1474 public static function QuicktimeColorNameLookup($color_depth_id) {1476 static $lookup = array (1477 1 => '2-color (monochrome)',1478 2 => '4-color',1479 4 => '16-color',1480 8 => '256-color',1481 16 => 'thousands (16-bit color)',1482 24 => 'millions (24-bit color)',1483 32 => 'millions+ (32-bit color)',1484 33 => 'black & white',1485 34 => '4-gray',1486 36 => '16-gray',1487 40 => '256-gray',1488 );1490 return (isset($lookup[$color_depth_id]) ? $lookup[$color_depth_id] : 'invalid');1491 }1495 public static function NoNullString($null_terminated_string) {1497 // remove the single null terminator on null terminated strings1498 if (substr($null_terminated_string, strlen($null_terminated_string) - 1, 1) === "\x00") {1499 return substr($null_terminated_string, 0, strlen($null_terminated_string) - 1);1500 }1502 return $null_terminated_string;1503 }1507 public static function FixedPoint8_8($raw_data) {1509 return getid3_lib::BigEndian2Int($raw_data{0}) + (float)(getid3_lib::BigEndian2Int($raw_data{1}) / 256);1510 }1514 public static function FixedPoint16_16($raw_data) {1516 return getid3_lib::BigEndian2Int(substr($raw_data, 0, 2)) + (float)(getid3_lib::BigEndian2Int(substr($raw_data, 2, 2)) / 65536);1517 }1521 public static function FixedPoint2_30($raw_data) {1523 $binary_string = getid3_lib::BigEndian2Bin($raw_data);1524 return bindec(substr($binary_string, 0, 2)) + (float)(bindec(substr($binary_string, 2, 30)) / 1073741824);1525 }1527 }1529 ?>