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comparison e2gallerypro/e2upload/Backend/Assets/getid3/module.audio-video.quicktime.php @ 3:3f6b44aa6b35 judyates

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[svn r4] added ability to buy stuff, from a Prints page, but it doesn't work well with the css, and it also has not been fitted into the perl make system.
author rlm
date Mon, 22 Feb 2010 08:02:39 -0500
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2:670229c4eb4b 3:3f6b44aa6b35
1 <?php
2 // +----------------------------------------------------------------------+
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 $
24
25
26
27 class getid3_quicktime extends getid3_handler
28 {
29
30 public function Analyze() {
31
32 $getid3 = $this->getid3;
33
34 $info = &$getid3->info;
35
36 $getid3->include_module('audio.mp3');
37
38 $info['quicktime'] = array ();
39 $info_quicktime = &$info['quicktime'];
40
41 $info['fileformat'] = 'quicktime';
42 $info_quicktime['hinting'] = false;
43
44 fseek($getid3->fp, $info['avdataoffset'], SEEK_SET);
45
46 $offset = $atom_counter = 0;
47
48 while ($offset < $info['avdataend']) {
49
50 fseek($getid3->fp, $offset, SEEK_SET);
51 $atom_header = fread($getid3->fp, 8);
52
53 $atom_size = getid3_lib::BigEndian2Int(substr($atom_header, 0, 4));
54 $atom_name = substr($atom_header, 4, 4);
55
56 $info_quicktime[$atom_name]['name'] = $atom_name;
57 $info_quicktime[$atom_name]['size'] = $atom_size;
58 $info_quicktime[$atom_name]['offset'] = $offset;
59
60 if (($offset + $atom_size) > $info['avdataend']) {
61 throw new getid3_exception('Atom at offset '.$offset.' claims to go beyond end-of-file (length: '.$atom_size.' bytes)');
62 }
63
64 if ($atom_size == 0) {
65 // Furthermore, for historical reasons the list of atoms is optionally
66 // terminated by a 32-bit integer set to 0. If you are writing a program
67 // to read user data atoms, you should allow for the terminating 0.
68 break;
69 }
70
71 switch ($atom_name) {
72
73 case 'mdat': // Media DATa atom
74 // 'mdat' contains the actual data for the audio/video
75 if (($atom_size > 8) && (!isset($info['avdataend_tmp']) || ($info_quicktime[$atom_name]['size'] > ($info['avdataend_tmp'] - $info['avdataoffset'])))) {
76
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'];
80
81
82 //// MP3
83
84 if (!$getid3->include_module_optional('audio.mp3')) {
85 $getid3->warning('MP3 skipped because mpeg module is missing.');
86 }
87
88 else {
89
90 // Clone getid3 - messing with offsets - better safe than sorry
91 $clone = clone $getid3;
92
93 if (getid3_mp3::MPEGaudioHeaderValid(getid3_mp3::MPEGaudioHeaderDecode(fread($clone->fp, 4)))) {
94
95 $mp3 = new getid3_mp3($clone);
96 $mp3->AnalyzeMPEGaudioInfo();
97
98 // Import from clone and destroy
99 if (isset($clone->info['mpeg']['audio'])) {
100
101 $info['mpeg']['audio'] = $clone->info['mpeg']['audio'];
102
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'];
110
111 $getid3->warning($clone->warnings());
112 unset($clone);
113 }
114 }
115 }
116
117 $info['avdataend'] = $old_av_data_end;
118 unset($old_av_data_end);
119
120 }
121 break;
122
123
124 case 'free': // FREE space atom
125 case 'skip': // SKIP atom
126 case 'wide': // 64-bit expansion placeholder atom
127 // 'free', 'skip' and 'wide' are just padding, contains no useful data at all
128 break;
129
130
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 }
136
137 $offset += $atom_size;
138 $atom_counter++;
139 }
140
141 if (!empty($info['avdataend_tmp'])) {
142 // this value is assigned to a temp value and then erased because
143 // otherwise any atoms beyond the 'mdat' atom would not get parsed
144 $info['avdataend'] = $info['avdataend_tmp'];
145 unset($info['avdataend_tmp']);
146 }
147
148 if (!isset($info['bitrate']) && isset($info['playtime_seconds'])) {
149 $info['bitrate'] = (($info['avdataend'] - $info['avdataoffset']) * 8) / $info['playtime_seconds'];
150 }
151
152 if (isset($info['bitrate']) && !isset($info['audio']['bitrate']) && !isset($info_quicktime['video'])) {
153 $info['audio']['bitrate'] = $info['bitrate'];
154 }
155
156 if ((@$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 }
161
162 if (!$getid3->option_extra_info) {
163 unset($info_quicktime['moov']);
164 }
165
166 if (empty($info['audio']['dataformat']) && !empty($info_quicktime['audio'])) {
167 $info['audio']['dataformat'] = 'quicktime';
168 }
169
170 if (empty($info['video']['dataformat']) && !empty($info_quicktime['video'])) {
171 $info['video']['dataformat'] = 'quicktime';
172 }
173
174 return true;
175 }
176
177
178
179 private function QuicktimeParseAtom($atom_name, $atom_size, $atom_data, $base_offset, &$atom_hierarchy) {
180
181 // http://developer.apple.com/techpubs/quicktime/qtdevdocs/APIREF/INDEX/atomalphaindex.htm
182
183 $getid3 = $this->getid3;
184
185 $info = &$getid3->info;
186 $info_quicktime = &$info['quicktime'];
187
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'] = $base_offset;
193
194 switch ($atom_name) {
195 case 'moov': // MOVie container atom
196 case 'trak': // TRAcK container atom
197 case 'clip': // CLIPping container atom
198 case 'matt': // track MATTe container atom
199 case 'edts': // EDiTS container atom
200 case 'tref': // Track REFerence container atom
201 case 'mdia': // MeDIA container atom
202 case 'minf': // Media INFormation container atom
203 case 'dinf': // Data INFormation container atom
204 case 'udta': // User DaTA container atom
205 case 'stbl': // Sample TaBLe container atom
206 case 'cmov': // Compressed MOVie container atom
207 case 'rmra': // Reference Movie Record Atom
208 case 'rmda': // Reference Movie Descriptor Atom
209 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;
212
213
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);
253
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;
260
261
262 case 'play': // auto-PLAY atom
263 $atom_structure['autoplay'] = (bool)getid3_lib::BigEndian2Int(substr($atom_data, 0, 1));
264
265 $info_quicktime['autoplay'] = $atom_structure['autoplay'];
266 break;
267
268
269 case 'WLOC': // Window LOCation atom
270 $atom_structure['location_x'] = getid3_lib::BigEndian2Int(substr($atom_data, 0, 2));
271 $atom_structure['location_y'] = getid3_lib::BigEndian2Int(substr($atom_data, 2, 2));
272 break;
273
274
275 case 'LOOP': // LOOPing atom
276 case 'SelO': // play SELection Only atom
277 case 'AllF': // play ALL Frames atom
278 $atom_structure['data'] = getid3_lib::BigEndian2Int($atom_data);
279 break;
280
281
282 case 'name': //
283 case 'MCPS': // Media Cleaner PRo
284 case '@PRM': // adobe PReMiere version
285 case '@PRQ': // adobe PRemiere Quicktime version
286 $atom_structure['data'] = $atom_data;
287 break;
288
289
290 case 'cmvd': // Compressed MooV Data atom
291 // Code by ubergeekØubergeek*tv based on information from
292 // http://developer.apple.com/quicktime/icefloe/dispatch012.html
293 $atom_structure['unCompressedSize'] = getid3_lib::BigEndian2Int(substr($atom_data, 0, 4));
294
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;
305
306
307 case 'dcom': // Data COMpression atom
308 $atom_structure['compression_id'] = $atom_data;
309 $atom_structure['compression_text'] = getid3_quicktime::QuicktimeDCOMLookup($atom_data);
310 break;
311
312
313 case 'rdrf': // Reference movie Data ReFerence atom
314 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 );
322
323 $atom_structure['flags']['internal_data'] = (bool)($atom_structure['flags_raw'] & 0x000001);
324
325 switch ($atom_structure['reference_type_name']) {
326 case 'url ':
327 $atom_structure['url'] = $this->NoNullString(substr($atom_data, 12));
328 break;
329
330 case 'alis':
331 $atom_structure['file_alias'] = substr($atom_data, 12);
332 break;
333
334 case 'rsrc':
335 $atom_structure['resource_alias'] = substr($atom_data, 12);
336 break;
337
338 default:
339 $atom_structure['data'] = substr($atom_data, 12);
340 break;
341 }
342 break;
343
344
345 case 'rmqu': // Reference Movie QUality atom
346 $atom_structure['movie_quality'] = getid3_lib::BigEndian2Int($atom_data);
347 break;
348
349
350 case 'rmcs': // Reference Movie Cpu Speed atom
351 getid3_lib::ReadSequence('BigEndian2Int', $atom_structure, $atom_data, 0,
352 array (
353 'version' => 1,
354 'flags_raw' => 3, // hardcoded: 0x0000
355 'cpu_speed_rating' => 2
356 )
357 );
358 break;
359
360
361 case 'rmvc': // Reference Movie Version Check atom
362 getid3_lib::ReadSequence('BigEndian2Int', $atom_structure, $atom_data, 0,
363 array (
364 'version' => 1,
365 'flags_raw' => 3, // hardcoded: 0x0000
366 'gestalt_selector' => -4,
367 'gestalt_value_mask' => 4,
368 'gestalt_value' => 4,
369 'gestalt_check_type' => 2
370 )
371 );
372 break;
373
374
375 case 'rmcd': // Reference Movie Component check atom
376 getid3_lib::ReadSequence('BigEndian2Int', $atom_structure, $atom_data, 0,
377 array (
378 'version' => 1,
379 'flags_raw' => 3, // hardcoded: 0x0000
380 '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' => 4
386 )
387 );
388 break;
389
390
391 case 'rmdr': // Reference Movie Data Rate atom
392 getid3_lib::ReadSequence('BigEndian2Int', $atom_structure, $atom_data, 0,
393 array (
394 'version' => 1,
395 'flags_raw' => 3, // hardcoded: 0x0000
396 'data_rate' => 4
397 )
398 );
399
400 $atom_structure['data_rate_bps'] = $atom_structure['data_rate'] * 10;
401 break;
402
403
404 case 'rmla': // Reference Movie Language Atom
405 getid3_lib::ReadSequence('BigEndian2Int', $atom_structure, $atom_data, 0,
406 array (
407 'version' => 1,
408 'flags_raw' => 3, // hardcoded: 0x0000
409 'language_id' => 2
410 )
411 );
412
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;
418
419
420 case 'rmla': // Reference Movie Language Atom
421 getid3_lib::ReadSequence('BigEndian2Int', $atom_structure, $atom_data, 0,
422 array (
423 'version' => 1,
424 'flags_raw' => 3, // hardcoded: 0x0000
425 'track_id' => 2
426 )
427 );
428 break;
429
430
431 case 'ptv ': // Print To Video - defines a movie's full screen mode
432 // http://developer.apple.com/documentation/QuickTime/APIREF/SOURCESIV/at_ptv-_pg.htm
433 getid3_lib::ReadSequence('BigEndian2Int', $atom_structure, $atom_data, 0,
434 array (
435 'display_size_raw' => 2,
436 'reserved_1' => 2, // hardcoded: 0x0000
437 'reserved_2' => 2, // hardcoded: 0x0000
438 'slide_show_flag' => 1,
439 'play_on_open_flag' => 1
440 )
441 );
442
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'];
445
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;
457
458
459 case 'stsd': // Sample Table Sample Description atom
460 getid3_lib::ReadSequence('BigEndian2Int', $atom_structure, $atom_data, 0,
461 array (
462 'version' => 1,
463 'flags_raw' => 3, // hardcoded: 0x0000
464 'number_entries' => 4
465 )
466 );
467 $stsd_entries_data_offset = 8;
468 for ($i = 0; $i < $atom_structure['number_entries']; $i++) {
469
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' => 2
476 )
477 );
478
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);
481
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' => -4
487 )
488 );
489
490 switch ($atom_structure['sample_description_table'][$i]['encoder_vendor']) {
491
492 case "\x00\x00\x00\x00":
493 // audio atom
494 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' => 2
500 )
501 );
502
503 $atom_structure['sample_description_table'][$i]['audio_sample_rate'] = getid3_quicktime::FixedPoint16_16(substr($atom_structure['sample_description_table'][$i]['data'], 16, 4));
504
505 switch ($atom_structure['sample_description_table'][$i]['data_format']) {
506
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');
510
511 case 'qtvr':
512 $info['video']['dataformat'] = 'quicktimevr';
513 break;
514
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 ': // PCM
527 case 'alac': // Apple Lossless Audio Codec
528 $info['audio']['lossless'] = true;
529 break;
530 default:
531 $info['audio']['lossless'] = false;
532 break;
533 }
534 break;
535 }
536 break;
537
538 default:
539 switch ($atom_structure['sample_description_table'][$i]['data_format']) {
540 case 'mp4s':
541 $info['fileformat'] = 'mp4';
542 break;
543
544 default:
545 // video atom
546 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' => 2
552 )
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' => 1
561 )
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));
566
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'][$i]['video_pixel_color_depth']);
569
570 if ($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'];
576
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;
590
591 case '3ivx':
592 case '3iv1':
593 case '3iv2':
594 $info['video']['dataformat'] = '3ivx';
595 break;
596
597 case 'xvid':
598 $info['video']['dataformat'] = 'xvid';
599 break;
600
601 case 'mp4v':
602 $info['video']['dataformat'] = 'mpeg4';
603 break;
604
605 case 'divx':
606 case 'div1':
607 case 'div2':
608 case 'div3':
609 case 'div4':
610 case 'div5':
611 case 'div6':
612 //$TDIVXileInfo['video']['dataformat'] = 'divx';
613 break;
614
615 default:
616 // do nothing
617 break;
618 }
619 unset($atom_structure['sample_description_table'][$i]['data']);
620 }
621 break;
622
623
624 case 'stts': // Sample Table Time-to-Sample atom
625 getid3_lib::ReadSequence('BigEndian2Int', $atom_structure, $atom_data, 0,
626 array (
627 'version' => 1,
628 'flags_raw' => 3, // hardcoded: 0x0000
629 'number_entries' => 4
630 )
631 );
632
633 $stts_entries_data_offset = 8;
634 $frame_rate_calculator_array = array ();
635 for ($i = 0; $i < $atom_structure['number_entries']; $i++) {
636
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;
639
640 $atom_structure['time_to_sample_table'][$i]['sample_duration'] = getid3_lib::BigEndian2Int(substr($atom_data, $stts_entries_data_offset, 4));
641 $stts_entries_data_offset += 4;
642
643 if (!empty($info_quicktime['time_scale']) && (@$atoms_structure['time_to_sample_table'][$i]['sample_duration'] > 0)) {
644
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 right
648 $info['video']['frame_rate'] = max(@$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 information
659 $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;
673
674
675 case 'stss': // Sample Table Sync Sample (key frames) atom
676 /*
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: 0x0000
679 $atom_structure['number_entries'] = getid3_lib::BigEndian2Int(substr($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;
687
688
689 case 'stsc': // Sample Table Sample-to-Chunk atom
690 /*
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: 0x0000
693 $atom_structure['number_entries'] = getid3_lib::BigEndian2Int(substr($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;
705
706
707 case 'stsz': // Sample Table SiZe atom
708 /*
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: 0x0000
711 $atom_structure['sample_size'] = getid3_lib::BigEndian2Int(substr($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;
722
723
724 case 'stco': // Sample Table Chunk Offset atom
725 /*
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: 0x0000
728 $atom_structure['number_entries'] = getid3_lib::BigEndian2Int(substr($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;
736
737
738 case 'dref': // Data REFerence atom
739 getid3_lib::ReadSequence('BigEndian2Int', $atom_structure, $atom_data, 0,
740 array (
741 'version' => 1,
742 'flags_raw' => 3, // hardcoded: 0x0000
743 'number_entries' => 4
744 )
745 );
746
747 $dref_data_offset = 8;
748 for ($i = 0; $i < $atom_structure['number_entries']; $i++) {
749
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: 0x0000
756 )
757 );
758 $dref_data_offset += 12;
759
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);
762
763 $atom_structure['data_references'][$i]['flags']['self_reference'] = (bool)($atom_structure['data_references'][$i]['flags_raw'] & 0x001);
764 }
765 break;
766
767
768 case 'gmin': // base Media INformation atom
769 getid3_lib::ReadSequence('BigEndian2Int', $atom_structure, $atom_data, 0,
770 array (
771 'version' => 1,
772 'flags_raw' => 3, // hardcoded: 0x0000
773 'graphics_mode' => 2,
774 'opcolor_red' => 2,
775 'opcolor_green' => 2,
776 'opcolor_blue' => 2,
777 'balance' => 2,
778 'reserved' => 2
779 )
780 );
781 break;
782
783
784 case 'smhd': // Sound Media information HeaDer atom
785 getid3_lib::ReadSequence('BigEndian2Int', $atom_structure, $atom_data, 0,
786 array (
787 'version' => 1,
788 'flags_raw' => 3, // hardcoded: 0x0000
789 'balance' => 2,
790 'reserved' => 2
791 )
792 );
793 break;
794
795
796 case 'vmhd': // Video Media information HeaDer atom
797 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' => 2
805 )
806 );
807 $atom_structure['flags']['no_lean_ahead'] = (bool)($atom_structure['flags_raw'] & 0x001);
808 break;
809
810
811 case 'hdlr': // HanDLeR reference atom
812 getid3_lib::ReadSequence('BigEndian2Int', $atom_structure, $atom_data, 0,
813 array (
814 'version' => 1,
815 'flags_raw' => 3, // hardcoded: 0x0000
816 'component_type' => -4,
817 'component_subtype' => -4,
818 'component_manufacturer' => -4,
819 'component_flags_raw' => 4,
820 'component_flags_mask' => 4
821 )
822 );
823
824 $atom_structure['component_name'] = substr(substr($atom_data, 24), 1); /// Pascal2String
825
826 if (($atom_structure['component_subtype'] == 'STpn') && ($atom_structure['component_manufacturer'] == 'zzzz')) {
827 $info['video']['dataformat'] = 'quicktimevr';
828 }
829 break;
830
831
832 case 'mdhd': // MeDia HeaDer atom
833 getid3_lib::ReadSequence('BigEndian2Int', $atom_structure, $atom_data, 0,
834 array (
835 'version' => 1,
836 'flags_raw' => 3, // hardcoded: 0x0000
837 'creation_time' => 4,
838 'modify_time' => 4,
839 'time_scale' => 4,
840 'duration' => 4,
841 'language_id' => 2,
842 'quality' => 2
843 )
844 );
845
846 if ($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']);
850
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;
859
860
861 case 'pnot': // Preview atom
862 getid3_lib::ReadSequence('BigEndian2Int', $atom_structure, $atom_data, 0,
863 array (
864 'modification_date' => 4, // "standard Macintosh format"
865 'version_number' => 2, // hardcoded: 0x00
866 'atom_type' => -4, // usually: 'PICT'
867 'atom_index' => 2 // usually: 0x01
868 )
869 );
870 $atom_structure['modification_date_unix'] = (int)($atom_structure['modification_date'] - 2082844800); // DateMac2Unix()
871 break;
872
873
874 case 'crgn': // Clipping ReGioN atom
875 $atom_structure['region_size'] = getid3_lib::BigEndian2Int(substr($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 fields
877 $atom_structure['clipping_data'] = substr($atom_data, 10); // constitute a QuickDraw region.
878 break;
879
880
881 case 'load': // track LOAD settings atom
882 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' => 4
888 )
889 );
890
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;
894
895
896 case 'tmcd': // TiMe CoDe atom
897 case 'chap': // CHAPter list atom
898 case 'sync': // SYNChronization atom
899 case 'scpt': // tranSCriPT atom
900 case 'ssrc': // non-primary SouRCe atom
901 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;
905
906
907 case 'elst': // Edit LiST atom
908 getid3_lib::ReadSequence('BigEndian2Int', $atom_structure, $atom_data, 0,
909 array (
910 'version' => 1,
911 'flags_raw' => 3, // hardcoded: 0x0000
912 'number_entries' => 4
913 )
914 );
915
916 for ($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;
922
923
924 case 'kmat': // compressed MATte atom
925 $atom_structure['version'] = getid3_lib::BigEndian2Int(substr($atom_data, 0, 1));
926 $atom_structure['flags_raw'] = getid3_lib::BigEndian2Int(substr($atom_data, 1, 3)); // hardcoded: 0x0000
927 $atom_structure['matte_data_raw'] = substr($atom_data, 4);
928 break;
929
930
931 case 'ctab': // Color TABle atom
932 $atom_structure['color_table_seed'] = getid3_lib::BigEndian2Int(substr($atom_data, 0, 4)); // hardcoded: 0x00000000
933 $atom_structure['color_table_flags'] = getid3_lib::BigEndian2Int(substr($atom_data, 4, 2)); // hardcoded: 0x8000
934 $atom_structure['color_table_size'] = getid3_lib::BigEndian2Int(substr($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;
942
943
944 case 'mvhd': // MoVie HeaDer atom
945 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' => 4
953 )
954 );
955
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));
968
969 getid3_lib::ReadSequence('BigEndian2Int', $atom_structure, $atom_data, 72,
970 array (
971 'preview_time' => 4,
972 'preview_duration' => 4,
973 'poster_time' => 4,
974 'selection_time' => 4,
975 'selection_duration' => 4,
976 'current_time' => 4,
977 'next_track_id' => 4
978 )
979 );
980
981 if ($atom_structure['time_scale'] == 0) {
982 throw new getid3_exception('Corrupt Quicktime file: mvhd.time_scale == zero');
983 }
984
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;
991
992
993 case 'tkhd': // TracK HeaDer atom
994 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' => 2
1006 )
1007 );
1008
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));
1022
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()
1029
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'] = $atom_structure['height'];
1033 }
1034
1035 if ($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'], $atom_structure['height']);
1038 }
1039
1040 if (!empty($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;
1049
1050
1051 case 'meta': // METAdata atom
1052 // http://www.geocities.com/xhelmboyx/quicktime/formats/qti-layout.txt
1053 $next_tag_position = strpos($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;
1063
1064 $this->CopyToAppropriateCommentsSection($meta_item_key, $meta_item_data);
1065 }
1066 break;
1067
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;
1077
1078 case 'mdat': // Media DATa atom
1079 case 'free': // FREE space atom
1080 case 'skip': // SKIP atom
1081 case 'wide': // 64-bit expansion placeholder atom
1082 // 'mdat' data is too big to deal with, contains no useful metadata
1083 // 'free', 'skip' and 'wide' are just padding, contains no useful data at all
1084
1085 // 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 atom
1087 // is only 8 bytes in size, and the 64-bit atom requires 16 bytes. Therefore, QuickTime
1088 // 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, the
1090 // placeholder atom can be overwritten to obtain the necessary 8 extra bytes.
1091 // The placeholder atom has a type of kWideAtomPlaceholderType ( 'wide' ).
1092 break;
1093
1094
1095 case 'nsav': // NoSAVe atom
1096 // http://developer.apple.com/technotes/tn/tn2038.html
1097 $atom_structure['data'] = getid3_lib::BigEndian2Int(substr($atom_data, 0, 4));
1098 break;
1099
1100 case 'ctyp': // Controller TYPe atom (seen on QTVR)
1101 // http://homepages.slingshot.co.nz/~helmboy/quicktime/formats/qtm-layout.txt
1102 // some controller names are:
1103 // 0x00 + 'std' for linear movie
1104 // 'none' for no controls
1105 $atom_structure['ctyp'] = substr($atom_data, 0, 4);
1106 switch ($atom_structure['ctyp']) {
1107 case 'qtvr':
1108 $info['video']['dataformat'] = 'quicktimevr';
1109 break;
1110 }
1111 break;
1112
1113 case 'pano': // PANOrama track (seen on QTVR)
1114 $atom_structure['pano'] = getid3_lib::BigEndian2Int(substr($atom_data, 0, 4));
1115 break;
1116
1117 case 'hint': // HINT track
1118 case 'hinf': //
1119 case 'hinv': //
1120 case 'hnti': //
1121 $info['quicktime']['hinting'] = true;
1122 break;
1123
1124 case 'imgt': // IMaGe Track reference (kQTVRImageTrackRefType) (seen on QTVR)
1125 for ($i = 0; $i < ($atom_structure['size'] - 8); $i += 4) {
1126 $atom_structure['imgt'][] = getid3_lib::BigEndian2Int(substr($atom_data, $i, 4));
1127 }
1128 break;
1129
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.html
1134 // Observed-but-not-handled atom types are just listed here
1135 // to prevent warnings being generated
1136 $atom_structure['data'] = $atom_data;
1137 break;
1138
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 $atom_structure;
1146 }
1147
1148
1149
1150 private function QuicktimeParseContainerAtom($atom_data, $base_offset, &$atom_hierarchy) {
1151
1152 if ((strlen($atom_data) == 4) && (getid3_lib::BigEndian2Int($atom_data) == 0x00000000)) {
1153 return false;
1154 }
1155
1156 $atom_structure = false;
1157 $subatom_offset = 0;
1158
1159 while ($subatom_offset < strlen($atom_data)) {
1160
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, $subatom_size - 8);
1164
1165 if ($subatom_size == 0) {
1166 // Furthermore, for historical reasons the list of atoms is optionally
1167 // terminated by a 32-bit integer set to 0. If you are writing a program
1168 // to read user data atoms, you should allow for the terminating 0.
1169 return $atom_structure;
1170 }
1171
1172 $atom_structure[] = $this->QuicktimeParseAtom($subatom_name, $subatom_size, $subatom_data, $base_offset + $subatom_offset, $atom_hierarchy);
1173
1174 $subatom_offset += $subatom_size;
1175 }
1176 return $atom_structure;
1177 }
1178
1179
1180
1181 private function CopyToAppropriateCommentsSection($key_name, $data) {
1182
1183 // http://www.geocities.com/xhelmboyx/quicktime/formats/qtm-layout.txt
1184
1185 static $translator = array (
1186 '©cpy' => 'copyright',
1187 '©day' => 'creation_date',
1188 '©dir' => 'director',
1189 '©ed1' => 'edit1',
1190 '©ed2' => 'edit2',
1191 '©ed3' => 'edit3',
1192 '©ed4' => 'edit4',
1193 '©ed5' => 'edit5',
1194 '©ed6' => 'edit6',
1195 '©ed7' => 'edit7',
1196 '©ed8' => 'edit8',
1197 '©ed9' => 'edit9',
1198 '©fmt' => 'format',
1199 '©inf' => 'information',
1200 '©prd' => 'producer',
1201 '©prf' => 'performers',
1202 '©req' => 'system_requirements',
1203 '©src' => 'source_credit',
1204 '©wrt' => 'writer',
1205 '©nam' => 'title',
1206 '©cmt' => 'comment',
1207 '©wrn' => 'warning',
1208 '©hst' => 'host_computer',
1209 '©mak' => 'make',
1210 '©mod' => 'model',
1211 '©PRD' => 'product',
1212 '©swr' => 'software',
1213 '©aut' => 'author',
1214 '©ART' => 'artist',
1215 '©trk' => 'track',
1216 '©alb' => 'album',
1217 '©com' => 'comment',
1218 '©gen' => 'genre',
1219 '©ope' => 'composer',
1220 '©url' => 'url',
1221 '©enc' => 'encoder'
1222 );
1223
1224 if (isset($translator[$key_name])) {
1225 $this->getid3->info['quicktime']['comments'][$translator[$key_name]][] = $data;
1226 }
1227
1228 return true;
1229 }
1230
1231
1232
1233 public static function QuicktimeLanguageLookup($language_id) {
1234
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 );
1347
1348 return (isset($lookup[$language_id]) ? $lookup[$language_id] : 'invalid');
1349 }
1350
1351
1352
1353 public static function QuicktimeVideoCodecLookup($codec_id) {
1354
1355 static $lookup = array (
1356 '3IVX' => '3ivx MPEG-4',
1357 '3IV1' => '3ivx MPEG-4 v1',
1358 '3IV2' => '3ivx MPEG-4 v2',
1359 'avr ' => 'AVR-JPEG',
1360 'base' => 'Base',
1361 'WRLE' => 'BMP',
1362 'cvid' => 'Cinepak',
1363 'clou' => 'Cloud',
1364 'cmyk' => 'CMYK',
1365 'yuv2' => 'ComponentVideo',
1366 'yuvu' => 'ComponentVideoSigned',
1367 'yuvs' => 'ComponentVideoUnsigned',
1368 'dvc ' => 'DVC-NTSC',
1369 'dvcp' => 'DVC-PAL',
1370 'dvpn' => 'DVCPro-NTSC',
1371 'dvpp' => 'DVCPro-PAL',
1372 'fire' => 'Fire',
1373 'flic' => 'FLC',
1374 'b48r' => '48RGB',
1375 'gif ' => 'GIF',
1376 'smc ' => 'Graphics',
1377 'h261' => 'H261',
1378 'h263' => 'H263',
1379 'IV41' => 'Indeo4',
1380 'jpeg' => 'JPEG',
1381 'PNTG' => 'MacPaint',
1382 'msvc' => 'Microsoft Video1',
1383 'mjpa' => 'Motion JPEG-A',
1384 'mjpb' => 'Motion JPEG-B',
1385 'myuv' => 'MPEG YUV420',
1386 'dmb1' => 'OpenDML JPEG',
1387 'kpcd' => 'PhotoCD',
1388 '8BPS' => 'Planar RGB',
1389 'png ' => 'PNG',
1390 'qdrw' => 'QuickDraw',
1391 'qdgx' => 'QuickDrawGX',
1392 'raw ' => 'RAW',
1393 '.SGI' => 'SGI',
1394 'b16g' => '16Gray',
1395 'b64a' => '64ARGB',
1396 'SVQ1' => 'Sorenson Video 1',
1397 'SVQ1' => 'Sorenson Video 3',
1398 'syv9' => 'Sorenson YUV9',
1399 'tga ' => 'Targa',
1400 'b32a' => '32AlphaGray',
1401 'tiff' => 'TIFF',
1402 'path' => 'Vector',
1403 'rpza' => 'Video',
1404 'ripl' => 'WaterRipple',
1405 'WRAW' => 'Windows RAW',
1406 'y420' => 'YUV420'
1407 );
1408
1409 return (isset($lookup[$codec_id]) ? $lookup[$codec_id] : '');
1410 }
1411
1412
1413
1414 public static function QuicktimeAudioCodecLookup($codec_id) {
1415
1416 static $lookup = array (
1417 '.mp3' => 'Fraunhofer MPEG Layer-III alias',
1418 'aac ' => 'ISO/IEC 14496-3 AAC',
1419 'agsm' => 'Apple GSM 10:1',
1420 'alac' => 'Apple Lossless Audio Codec',
1421 'alaw' => 'A-law 2:1',
1422 'conv' => 'Sample Format',
1423 'dvca' => 'DV',
1424 'dvi ' => 'DV 4:1',
1425 'eqal' => 'Frequency Equalizer',
1426 'fl32' => '32-bit Floating Point',
1427 'fl64' => '64-bit Floating Point',
1428 'ima4' => 'Interactive Multimedia Association 4:1',
1429 'in24' => '24-bit Integer',
1430 'in32' => '32-bit Integer',
1431 'lpc ' => 'LPC 23:1',
1432 'MAC3' => 'Macintosh Audio Compression/Expansion (MACE) 3:1',
1433 'MAC6' => 'Macintosh Audio Compression/Expansion (MACE) 6:1',
1434 'mixb' => '8-bit Mixer',
1435 'mixw' => '16-bit Mixer',
1436 'mp4a' => 'ISO/IEC 14496-3 AAC',
1437 "MS'\x00\x02" => 'Microsoft ADPCM',
1438 "MS'\x00\x11" => 'DV IMA',
1439 "MS\x00\x55" => 'Fraunhofer MPEG Layer III',
1440 'NONE' => 'No Encoding',
1441 'Qclp' => 'Qualcomm PureVoice',
1442 'QDM2' => 'QDesign Music 2',
1443 'QDMC' => 'QDesign Music 1',
1444 'ratb' => '8-bit Rate',
1445 'ratw' => '16-bit Rate',
1446 'raw ' => 'raw PCM',
1447 'sour' => 'Sound Source',
1448 'sowt' => 'signed/two\'s complement (Little Endian)',
1449 'str1' => 'Iomega MPEG layer II',
1450 'str2' => 'Iomega MPEG *layer II',
1451 'str3' => 'Iomega MPEG **layer II',
1452 'str4' => 'Iomega MPEG ***layer II',
1453 'twos' => 'signed/two\'s complement (Big Endian)',
1454 'ulaw' => 'mu-law 2:1',
1455 );
1456
1457 return (isset($lookup[$codec_id]) ? $lookup[$codec_id] : '');
1458 }
1459
1460
1461
1462 public static function QuicktimeDCOMLookup($compression_id) {
1463
1464 static $lookup = array (
1465 'zlib' => 'ZLib Deflate',
1466 'adec' => 'Apple Compression'
1467 );
1468
1469 return (isset($lookup[$compression_id]) ? $lookup[$compression_id] : '');
1470 }
1471
1472
1473
1474 public static function QuicktimeColorNameLookup($color_depth_id) {
1475
1476 static $lookup = array (
1477 1 => '2-color (monochrome)',
1478 2 => '4-color',
1479 4 => '16-color',
1480 8 => '256-color',
1481 16 => 'thousands (16-bit color)',
1482 24 => 'millions (24-bit color)',
1483 32 => 'millions+ (32-bit color)',
1484 33 => 'black & white',
1485 34 => '4-gray',
1486 36 => '16-gray',
1487 40 => '256-gray',
1488 );
1489
1490 return (isset($lookup[$color_depth_id]) ? $lookup[$color_depth_id] : 'invalid');
1491 }
1492
1493
1494
1495 public static function NoNullString($null_terminated_string) {
1496
1497 // remove the single null terminator on null terminated strings
1498 if (substr($null_terminated_string, strlen($null_terminated_string) - 1, 1) === "\x00") {
1499 return substr($null_terminated_string, 0, strlen($null_terminated_string) - 1);
1500 }
1501
1502 return $null_terminated_string;
1503 }
1504
1505
1506
1507 public static function FixedPoint8_8($raw_data) {
1508
1509 return getid3_lib::BigEndian2Int($raw_data{0}) + (float)(getid3_lib::BigEndian2Int($raw_data{1}) / 256);
1510 }
1511
1512
1513
1514 public static function FixedPoint16_16($raw_data) {
1515
1516 return getid3_lib::BigEndian2Int(substr($raw_data, 0, 2)) + (float)(getid3_lib::BigEndian2Int(substr($raw_data, 2, 2)) / 65536);
1517 }
1518
1519
1520
1521 public static function FixedPoint2_30($raw_data) {
1522
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 }
1526
1527 }
1528
1529 ?>