WordPress 4.3
[autoinstalls/wordpress.git] / wp-includes / ID3 / module.audio-video.quicktime.php
1 <?php
2 /////////////////////////////////////////////////////////////////
3 /// getID3() by James Heinrich <info@getid3.org>               //
4 //  available at http://getid3.sourceforge.net                 //
5 //            or http://www.getid3.org                         //
6 //          also https://github.com/JamesHeinrich/getID3       //
7 /////////////////////////////////////////////////////////////////
8 // See readme.txt for more details                             //
9 /////////////////////////////////////////////////////////////////
10 //                                                             //
11 // module.audio-video.quicktime.php                            //
12 // module for analyzing Quicktime and MP3-in-MP4 files         //
13 // dependencies: module.audio.mp3.php                          //
14 // dependencies: module.tag.id3v2.php                          //
15 //                                                            ///
16 /////////////////////////////////////////////////////////////////
17
18 getid3_lib::IncludeDependency(GETID3_INCLUDEPATH.'module.audio.mp3.php', __FILE__, true);
19 getid3_lib::IncludeDependency(GETID3_INCLUDEPATH.'module.tag.id3v2.php', __FILE__, true); // needed for ISO 639-2 language code lookup
20
21 class getid3_quicktime extends getid3_handler
22 {
23
24         public $ReturnAtomData        = true;
25         public $ParseAllPossibleAtoms = false;
26
27         public function Analyze() {
28                 $info = &$this->getid3->info;
29
30                 $info['fileformat'] = 'quicktime';
31                 $info['quicktime']['hinting']    = false;
32                 $info['quicktime']['controller'] = 'standard'; // may be overridden if 'ctyp' atom is present
33
34                 $this->fseek($info['avdataoffset']);
35
36                 $offset      = 0;
37                 $atomcounter = 0;
38                 $atom_data_read_buffer_size = ($info['php_memory_limit'] ? round($info['php_memory_limit'] / 2) : $this->getid3->option_fread_buffer_size * 1024); // allow [default: 32MB] if PHP configured with no memory_limit
39                 while ($offset < $info['avdataend']) {
40                         if (!getid3_lib::intValueSupported($offset)) {
41                                 $info['error'][] = 'Unable to parse atom at offset '.$offset.' because beyond '.round(PHP_INT_MAX / 1073741824).'GB limit of PHP filesystem functions';
42                                 break;
43                         }
44                         $this->fseek($offset);
45                         $AtomHeader = $this->fread(8);
46
47                         $atomsize = getid3_lib::BigEndian2Int(substr($AtomHeader, 0, 4));
48                         $atomname = substr($AtomHeader, 4, 4);
49
50                         // 64-bit MOV patch by jlegateØktnc*com
51                         if ($atomsize == 1) {
52                                 $atomsize = getid3_lib::BigEndian2Int($this->fread(8));
53                         }
54
55                         $info['quicktime'][$atomname]['name']   = $atomname;
56                         $info['quicktime'][$atomname]['size']   = $atomsize;
57                         $info['quicktime'][$atomname]['offset'] = $offset;
58
59                         if (($offset + $atomsize) > $info['avdataend']) {
60                                 $info['error'][] = 'Atom at offset '.$offset.' claims to go beyond end-of-file (length: '.$atomsize.' bytes)';
61                                 return false;
62                         }
63
64                         if ($atomsize == 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                         $atomHierarchy = array();
71                         $info['quicktime'][$atomname] = $this->QuicktimeParseAtom($atomname, $atomsize, $this->fread(min($atomsize, $atom_data_read_buffer_size)), $offset, $atomHierarchy, $this->ParseAllPossibleAtoms);
72
73                         $offset += $atomsize;
74                         $atomcounter++;
75                 }
76
77                 if (!empty($info['avdataend_tmp'])) {
78                         // this value is assigned to a temp value and then erased because
79                         // otherwise any atoms beyond the 'mdat' atom would not get parsed
80                         $info['avdataend'] = $info['avdataend_tmp'];
81                         unset($info['avdataend_tmp']);
82                 }
83
84                 if (!isset($info['bitrate']) && isset($info['playtime_seconds'])) {
85                         $info['bitrate'] = (($info['avdataend'] - $info['avdataoffset']) * 8) / $info['playtime_seconds'];
86                 }
87                 if (isset($info['bitrate']) && !isset($info['audio']['bitrate']) && !isset($info['quicktime']['video'])) {
88                         $info['audio']['bitrate'] = $info['bitrate'];
89                 }
90                 if (!empty($info['playtime_seconds']) && !isset($info['video']['frame_rate']) && !empty($info['quicktime']['stts_framecount'])) {
91                         foreach ($info['quicktime']['stts_framecount'] as $key => $samples_count) {
92                                 $samples_per_second = $samples_count / $info['playtime_seconds'];
93                                 if ($samples_per_second > 240) {
94                                         // has to be audio samples
95                                 } else {
96                                         $info['video']['frame_rate'] = $samples_per_second;
97                                         break;
98                                 }
99                         }
100                 }
101                 if (($info['audio']['dataformat'] == 'mp4') && empty($info['video']['resolution_x'])) {
102                         $info['fileformat'] = 'mp4';
103                         $info['mime_type']  = 'audio/mp4';
104                         unset($info['video']['dataformat']);
105                 }
106
107                 if (!$this->ReturnAtomData) {
108                         unset($info['quicktime']['moov']);
109                 }
110
111                 if (empty($info['audio']['dataformat']) && !empty($info['quicktime']['audio'])) {
112                         $info['audio']['dataformat'] = 'quicktime';
113                 }
114                 if (empty($info['video']['dataformat']) && !empty($info['quicktime']['video'])) {
115                         $info['video']['dataformat'] = 'quicktime';
116                 }
117
118                 return true;
119         }
120
121         public function QuicktimeParseAtom($atomname, $atomsize, $atom_data, $baseoffset, &$atomHierarchy, $ParseAllPossibleAtoms) {
122                 // http://developer.apple.com/techpubs/quicktime/qtdevdocs/APIREF/INDEX/atomalphaindex.htm
123
124                 $info = &$this->getid3->info;
125
126                 $atom_parent = end($atomHierarchy); // not array_pop($atomHierarchy); see http://www.getid3.org/phpBB3/viewtopic.php?t=1717
127                 array_push($atomHierarchy, $atomname);
128                 $atom_structure['hierarchy'] = implode(' ', $atomHierarchy);
129                 $atom_structure['name']      = $atomname;
130                 $atom_structure['size']      = $atomsize;
131                 $atom_structure['offset']    = $baseoffset;
132                 switch ($atomname) {
133                         case 'moov': // MOVie container atom
134                         case 'trak': // TRAcK container atom
135                         case 'clip': // CLIPping container atom
136                         case 'matt': // track MATTe container atom
137                         case 'edts': // EDiTS container atom
138                         case 'tref': // Track REFerence container atom
139                         case 'mdia': // MeDIA container atom
140                         case 'minf': // Media INFormation container atom
141                         case 'dinf': // Data INFormation container atom
142                         case 'udta': // User DaTA container atom
143                         case 'cmov': // Compressed MOVie container atom
144                         case 'rmra': // Reference Movie Record Atom
145                         case 'rmda': // Reference Movie Descriptor Atom
146                         case 'gmhd': // Generic Media info HeaDer atom (seen on QTVR)
147                                 $atom_structure['subatoms'] = $this->QuicktimeParseContainerAtom($atom_data, $baseoffset + 8, $atomHierarchy, $ParseAllPossibleAtoms);
148                                 break;
149
150                         case 'ilst': // Item LiST container atom
151                                 if ($atom_structure['subatoms'] = $this->QuicktimeParseContainerAtom($atom_data, $baseoffset + 8, $atomHierarchy, $ParseAllPossibleAtoms)) {
152                                         // some "ilst" atoms contain data atoms that have a numeric name, and the data is far more accessible if the returned array is compacted
153                                         $allnumericnames = true;
154                                         foreach ($atom_structure['subatoms'] as $subatomarray) {
155                                                 if (!is_integer($subatomarray['name']) || (count($subatomarray['subatoms']) != 1)) {
156                                                         $allnumericnames = false;
157                                                         break;
158                                                 }
159                                         }
160                                         if ($allnumericnames) {
161                                                 $newData = array();
162                                                 foreach ($atom_structure['subatoms'] as $subatomarray) {
163                                                         foreach ($subatomarray['subatoms'] as $newData_subatomarray) {
164                                                                 unset($newData_subatomarray['hierarchy'], $newData_subatomarray['name']);
165                                                                 $newData[$subatomarray['name']] = $newData_subatomarray;
166                                                                 break;
167                                                         }
168                                                 }
169                                                 $atom_structure['data'] = $newData;
170                                                 unset($atom_structure['subatoms']);
171                                         }
172                                 }
173                                 break;
174
175                         case "\x00\x00\x00\x01":
176                         case "\x00\x00\x00\x02":
177                         case "\x00\x00\x00\x03":
178                         case "\x00\x00\x00\x04":
179                         case "\x00\x00\x00\x05":
180                                 $atomname = getid3_lib::BigEndian2Int($atomname);
181                                 $atom_structure['name'] = $atomname;
182                                 $atom_structure['subatoms'] = $this->QuicktimeParseContainerAtom($atom_data, $baseoffset + 8, $atomHierarchy, $ParseAllPossibleAtoms);
183                                 break;
184
185                         case 'stbl': // Sample TaBLe container atom
186                                 $atom_structure['subatoms'] = $this->QuicktimeParseContainerAtom($atom_data, $baseoffset + 8, $atomHierarchy, $ParseAllPossibleAtoms);
187                                 $isVideo = false;
188                                 $framerate  = 0;
189                                 $framecount = 0;
190                                 foreach ($atom_structure['subatoms'] as $key => $value_array) {
191                                         if (isset($value_array['sample_description_table'])) {
192                                                 foreach ($value_array['sample_description_table'] as $key2 => $value_array2) {
193                                                         if (isset($value_array2['data_format'])) {
194                                                                 switch ($value_array2['data_format']) {
195                                                                         case 'avc1':
196                                                                         case 'mp4v':
197                                                                                 // video data
198                                                                                 $isVideo = true;
199                                                                                 break;
200                                                                         case 'mp4a':
201                                                                                 // audio data
202                                                                                 break;
203                                                                 }
204                                                         }
205                                                 }
206                                         } elseif (isset($value_array['time_to_sample_table'])) {
207                                                 foreach ($value_array['time_to_sample_table'] as $key2 => $value_array2) {
208                                                         if (isset($value_array2['sample_count']) && isset($value_array2['sample_duration']) && ($value_array2['sample_duration'] > 0)) {
209                                                                 $framerate  = round($info['quicktime']['time_scale'] / $value_array2['sample_duration'], 3);
210                                                                 $framecount = $value_array2['sample_count'];
211                                                         }
212                                                 }
213                                         }
214                                 }
215                                 if ($isVideo && $framerate) {
216                                         $info['quicktime']['video']['frame_rate'] = $framerate;
217                                         $info['video']['frame_rate'] = $info['quicktime']['video']['frame_rate'];
218                                 }
219                                 if ($isVideo && $framecount) {
220                                         $info['quicktime']['video']['frame_count'] = $framecount;
221                                 }
222                                 break;
223
224
225                         case 'aART': // Album ARTist
226                         case 'catg': // CaTeGory
227                         case 'covr': // COVeR artwork
228                         case 'cpil': // ComPILation
229                         case 'cprt': // CoPyRighT
230                         case 'desc': // DESCription
231                         case 'disk': // DISK number
232                         case 'egid': // Episode Global ID
233                         case 'gnre': // GeNRE
234                         case 'keyw': // KEYWord
235                         case 'ldes':
236                         case 'pcst': // PodCaST
237                         case 'pgap': // GAPless Playback
238                         case 'purd': // PURchase Date
239                         case 'purl': // Podcast URL
240                         case 'rati':
241                         case 'rndu':
242                         case 'rpdu':
243                         case 'rtng': // RaTiNG
244                         case 'stik':
245                         case 'tmpo': // TeMPO (BPM)
246                         case 'trkn': // TRacK Number
247                         case 'tves': // TV EpiSode
248                         case 'tvnn': // TV Network Name
249                         case 'tvsh': // TV SHow Name
250                         case 'tvsn': // TV SeasoN
251                         case 'akID': // iTunes store account type
252                         case 'apID':
253                         case 'atID':
254                         case 'cmID':
255                         case 'cnID':
256                         case 'geID':
257                         case 'plID':
258                         case 'sfID': // iTunes store country
259                         case "\xA9".'alb': // ALBum
260                         case "\xA9".'art': // ARTist
261                         case "\xA9".'ART':
262                         case "\xA9".'aut':
263                         case "\xA9".'cmt': // CoMmenT
264                         case "\xA9".'com': // COMposer
265                         case "\xA9".'cpy':
266                         case "\xA9".'day': // content created year
267                         case "\xA9".'dir':
268                         case "\xA9".'ed1':
269                         case "\xA9".'ed2':
270                         case "\xA9".'ed3':
271                         case "\xA9".'ed4':
272                         case "\xA9".'ed5':
273                         case "\xA9".'ed6':
274                         case "\xA9".'ed7':
275                         case "\xA9".'ed8':
276                         case "\xA9".'ed9':
277                         case "\xA9".'enc':
278                         case "\xA9".'fmt':
279                         case "\xA9".'gen': // GENre
280                         case "\xA9".'grp': // GRouPing
281                         case "\xA9".'hst':
282                         case "\xA9".'inf':
283                         case "\xA9".'lyr': // LYRics
284                         case "\xA9".'mak':
285                         case "\xA9".'mod':
286                         case "\xA9".'nam': // full NAMe
287                         case "\xA9".'ope':
288                         case "\xA9".'PRD':
289                         case "\xA9".'prd':
290                         case "\xA9".'prf':
291                         case "\xA9".'req':
292                         case "\xA9".'src':
293                         case "\xA9".'swr':
294                         case "\xA9".'too': // encoder
295                         case "\xA9".'trk': // TRacK
296                         case "\xA9".'url':
297                         case "\xA9".'wrn':
298                         case "\xA9".'wrt': // WRiTer
299                         case '----': // itunes specific
300                                 if ($atom_parent == 'udta') {
301                                         // User data atom handler
302                                         $atom_structure['data_length'] = getid3_lib::BigEndian2Int(substr($atom_data, 0, 2));
303                                         $atom_structure['language_id'] = getid3_lib::BigEndian2Int(substr($atom_data, 2, 2));
304                                         $atom_structure['data']        =                           substr($atom_data, 4);
305
306                                         $atom_structure['language']    = $this->QuicktimeLanguageLookup($atom_structure['language_id']);
307                                         if (empty($info['comments']['language']) || (!in_array($atom_structure['language'], $info['comments']['language']))) {
308                                                 $info['comments']['language'][] = $atom_structure['language'];
309                                         }
310                                 } else {
311                                         // Apple item list box atom handler
312                                         $atomoffset = 0;
313                                         if (substr($atom_data, 2, 2) == "\x10\xB5") {
314                                                 // not sure what it means, but observed on iPhone4 data.
315                                                 // Each $atom_data has 2 bytes of datasize, plus 0x10B5, then data
316                                                 while ($atomoffset < strlen($atom_data)) {
317                                                         $boxsmallsize = getid3_lib::BigEndian2Int(substr($atom_data, $atomoffset,     2));
318                                                         $boxsmalltype =                           substr($atom_data, $atomoffset + 2, 2);
319                                                         $boxsmalldata =                           substr($atom_data, $atomoffset + 4, $boxsmallsize);
320                                                         if ($boxsmallsize <= 1) {
321                                                                 $info['warning'][] = 'Invalid QuickTime atom smallbox size "'.$boxsmallsize.'" in atom "'.preg_replace('#[^a-zA-Z0-9 _\\-]#', '?', $atomname).'" at offset: '.($atom_structure['offset'] + $atomoffset);
322                                                                 $atom_structure['data'] = null;
323                                                                 $atomoffset = strlen($atom_data);
324                                                                 break;
325                                                         }
326                                                         switch ($boxsmalltype) {
327                                                                 case "\x10\xB5":
328                                                                         $atom_structure['data'] = $boxsmalldata;
329                                                                         break;
330                                                                 default:
331                                                                         $info['warning'][] = 'Unknown QuickTime smallbox type: "'.preg_replace('#[^a-zA-Z0-9 _\\-]#', '?', $boxsmalltype).'" ('.trim(getid3_lib::PrintHexBytes($boxsmalltype)).') at offset '.$baseoffset;
332                                                                         $atom_structure['data'] = $atom_data;
333                                                                         break;
334                                                         }
335                                                         $atomoffset += (4 + $boxsmallsize);
336                                                 }
337                                         } else {
338                                                 while ($atomoffset < strlen($atom_data)) {
339                                                         $boxsize = getid3_lib::BigEndian2Int(substr($atom_data, $atomoffset, 4));
340                                                         $boxtype =                           substr($atom_data, $atomoffset + 4, 4);
341                                                         $boxdata =                           substr($atom_data, $atomoffset + 8, $boxsize - 8);
342                                                         if ($boxsize <= 1) {
343                                                                 $info['warning'][] = 'Invalid QuickTime atom box size "'.$boxsize.'" in atom "'.preg_replace('#[^a-zA-Z0-9 _\\-]#', '?', $atomname).'" at offset: '.($atom_structure['offset'] + $atomoffset);
344                                                                 $atom_structure['data'] = null;
345                                                                 $atomoffset = strlen($atom_data);
346                                                                 break;
347                                                         }
348                                                         $atomoffset += $boxsize;
349
350                                                         switch ($boxtype) {
351                                                                 case 'mean':
352                                                                 case 'name':
353                                                                         $atom_structure[$boxtype] = substr($boxdata, 4);
354                                                                         break;
355
356                                                                 case 'data':
357                                                                         $atom_structure['version']   = getid3_lib::BigEndian2Int(substr($boxdata,  0, 1));
358                                                                         $atom_structure['flags_raw'] = getid3_lib::BigEndian2Int(substr($boxdata,  1, 3));
359                                                                         switch ($atom_structure['flags_raw']) {
360                                                                                 case  0: // data flag
361                                                                                 case 21: // tmpo/cpil flag
362                                                                                         switch ($atomname) {
363                                                                                                 case 'cpil':
364                                                                                                 case 'pcst':
365                                                                                                 case 'pgap':
366                                                                                                         $atom_structure['data'] = getid3_lib::BigEndian2Int(substr($boxdata, 8, 1));
367                                                                                                         break;
368
369                                                                                                 case 'tmpo':
370                                                                                                         $atom_structure['data'] = getid3_lib::BigEndian2Int(substr($boxdata, 8, 2));
371                                                                                                         break;
372
373                                                                                                 case 'disk':
374                                                                                                 case 'trkn':
375                                                                                                         $num       = getid3_lib::BigEndian2Int(substr($boxdata, 10, 2));
376                                                                                                         $num_total = getid3_lib::BigEndian2Int(substr($boxdata, 12, 2));
377                                                                                                         $atom_structure['data']  = empty($num) ? '' : $num;
378                                                                                                         $atom_structure['data'] .= empty($num_total) ? '' : '/'.$num_total;
379                                                                                                         break;
380
381                                                                                                 case 'gnre':
382                                                                                                         $GenreID = getid3_lib::BigEndian2Int(substr($boxdata, 8, 4));
383                                                                                                         $atom_structure['data']    = getid3_id3v1::LookupGenreName($GenreID - 1);
384                                                                                                         break;
385
386                                                                                                 case 'rtng':
387                                                                                                         $atom_structure[$atomname] = getid3_lib::BigEndian2Int(substr($boxdata, 8, 1));
388                                                                                                         $atom_structure['data']    = $this->QuicktimeContentRatingLookup($atom_structure[$atomname]);
389                                                                                                         break;
390
391                                                                                                 case 'stik':
392                                                                                                         $atom_structure[$atomname] = getid3_lib::BigEndian2Int(substr($boxdata, 8, 1));
393                                                                                                         $atom_structure['data']    = $this->QuicktimeSTIKLookup($atom_structure[$atomname]);
394                                                                                                         break;
395
396                                                                                                 case 'sfID':
397                                                                                                         $atom_structure[$atomname] = getid3_lib::BigEndian2Int(substr($boxdata, 8, 4));
398                                                                                                         $atom_structure['data']    = $this->QuicktimeStoreFrontCodeLookup($atom_structure[$atomname]);
399                                                                                                         break;
400
401                                                                                                 case 'egid':
402                                                                                                 case 'purl':
403                                                                                                         $atom_structure['data'] = substr($boxdata, 8);
404                                                                                                         break;
405
406                                                                                                 default:
407                                                                                                         $atom_structure['data'] = getid3_lib::BigEndian2Int(substr($boxdata, 8, 4));
408                                                                                         }
409                                                                                         break;
410
411                                                                                 case  1: // text flag
412                                                                                 case 13: // image flag
413                                                                                 default:
414                                                                                         $atom_structure['data'] = substr($boxdata, 8);
415                                                                                         if ($atomname == 'covr') {
416                                                                                                 // not a foolproof check, but better than nothing
417                                                                                                 if (preg_match('#^\xFF\xD8\xFF#', $atom_structure['data'])) {
418                                                                                                         $atom_structure['image_mime'] = 'image/jpeg';
419                                                                                                 } elseif (preg_match('#^\x89\x50\x4E\x47\x0D\x0A\x1A\x0A#', $atom_structure['data'])) {
420                                                                                                         $atom_structure['image_mime'] = 'image/png';
421                                                                                                 } elseif (preg_match('#^GIF#', $atom_structure['data'])) {
422                                                                                                         $atom_structure['image_mime'] = 'image/gif';
423                                                                                                 }
424                                                                                         }
425                                                                                         break;
426
427                                                                         }
428                                                                         break;
429
430                                                                 default:
431                                                                         $info['warning'][] = 'Unknown QuickTime box type: "'.preg_replace('#[^a-zA-Z0-9 _\\-]#', '?', $boxtype).'" ('.trim(getid3_lib::PrintHexBytes($boxtype)).') at offset '.$baseoffset;
432                                                                         $atom_structure['data'] = $atom_data;
433
434                                                         }
435                                                 }
436                                         }
437                                 }
438                                 $this->CopyToAppropriateCommentsSection($atomname, $atom_structure['data'], $atom_structure['name']);
439                                 break;
440
441
442                         case 'play': // auto-PLAY atom
443                                 $atom_structure['autoplay'] = (bool) getid3_lib::BigEndian2Int(substr($atom_data,  0, 1));
444
445                                 $info['quicktime']['autoplay'] = $atom_structure['autoplay'];
446                                 break;
447
448
449                         case 'WLOC': // Window LOCation atom
450                                 $atom_structure['location_x']  = getid3_lib::BigEndian2Int(substr($atom_data,  0, 2));
451                                 $atom_structure['location_y']  = getid3_lib::BigEndian2Int(substr($atom_data,  2, 2));
452                                 break;
453
454
455                         case 'LOOP': // LOOPing atom
456                         case 'SelO': // play SELection Only atom
457                         case 'AllF': // play ALL Frames atom
458                                 $atom_structure['data'] = getid3_lib::BigEndian2Int($atom_data);
459                                 break;
460
461
462                         case 'name': //
463                         case 'MCPS': // Media Cleaner PRo
464                         case '@PRM': // adobe PReMiere version
465                         case '@PRQ': // adobe PRemiere Quicktime version
466                                 $atom_structure['data'] = $atom_data;
467                                 break;
468
469
470                         case 'cmvd': // Compressed MooV Data atom
471                                 // Code by ubergeekØubergeek*tv based on information from
472                                 // http://developer.apple.com/quicktime/icefloe/dispatch012.html
473                                 $atom_structure['unCompressedSize'] = getid3_lib::BigEndian2Int(substr($atom_data, 0, 4));
474
475                                 $CompressedFileData = substr($atom_data, 4);
476                                 if ($UncompressedHeader = @gzuncompress($CompressedFileData)) {
477                                         $atom_structure['subatoms'] = $this->QuicktimeParseContainerAtom($UncompressedHeader, 0, $atomHierarchy, $ParseAllPossibleAtoms);
478                                 } else {
479                                         $info['warning'][] = 'Error decompressing compressed MOV atom at offset '.$atom_structure['offset'];
480                                 }
481                                 break;
482
483
484                         case 'dcom': // Data COMpression atom
485                                 $atom_structure['compression_id']   = $atom_data;
486                                 $atom_structure['compression_text'] = $this->QuicktimeDCOMLookup($atom_data);
487                                 break;
488
489
490                         case 'rdrf': // Reference movie Data ReFerence atom
491                                 $atom_structure['version']                = getid3_lib::BigEndian2Int(substr($atom_data,  0, 1));
492                                 $atom_structure['flags_raw']              = getid3_lib::BigEndian2Int(substr($atom_data,  1, 3));
493                                 $atom_structure['flags']['internal_data'] = (bool) ($atom_structure['flags_raw'] & 0x000001);
494
495                                 $atom_structure['reference_type_name']    =                           substr($atom_data,  4, 4);
496                                 $atom_structure['reference_length']       = getid3_lib::BigEndian2Int(substr($atom_data,  8, 4));
497                                 switch ($atom_structure['reference_type_name']) {
498                                         case 'url ':
499                                                 $atom_structure['url']            =       $this->NoNullString(substr($atom_data, 12));
500                                                 break;
501
502                                         case 'alis':
503                                                 $atom_structure['file_alias']     =                           substr($atom_data, 12);
504                                                 break;
505
506                                         case 'rsrc':
507                                                 $atom_structure['resource_alias'] =                           substr($atom_data, 12);
508                                                 break;
509
510                                         default:
511                                                 $atom_structure['data']           =                           substr($atom_data, 12);
512                                                 break;
513                                 }
514                                 break;
515
516
517                         case 'rmqu': // Reference Movie QUality atom
518                                 $atom_structure['movie_quality'] = getid3_lib::BigEndian2Int($atom_data);
519                                 break;
520
521
522                         case 'rmcs': // Reference Movie Cpu Speed atom
523                                 $atom_structure['version']          = getid3_lib::BigEndian2Int(substr($atom_data,  0, 1));
524                                 $atom_structure['flags_raw']        = getid3_lib::BigEndian2Int(substr($atom_data,  1, 3)); // hardcoded: 0x0000
525                                 $atom_structure['cpu_speed_rating'] = getid3_lib::BigEndian2Int(substr($atom_data,  4, 2));
526                                 break;
527
528
529                         case 'rmvc': // Reference Movie Version Check atom
530                                 $atom_structure['version']            = getid3_lib::BigEndian2Int(substr($atom_data,  0, 1));
531                                 $atom_structure['flags_raw']          = getid3_lib::BigEndian2Int(substr($atom_data,  1, 3)); // hardcoded: 0x0000
532                                 $atom_structure['gestalt_selector']   =                           substr($atom_data,  4, 4);
533                                 $atom_structure['gestalt_value_mask'] = getid3_lib::BigEndian2Int(substr($atom_data,  8, 4));
534                                 $atom_structure['gestalt_value']      = getid3_lib::BigEndian2Int(substr($atom_data, 12, 4));
535                                 $atom_structure['gestalt_check_type'] = getid3_lib::BigEndian2Int(substr($atom_data, 14, 2));
536                                 break;
537
538
539                         case 'rmcd': // Reference Movie Component check atom
540                                 $atom_structure['version']                = getid3_lib::BigEndian2Int(substr($atom_data,  0, 1));
541                                 $atom_structure['flags_raw']              = getid3_lib::BigEndian2Int(substr($atom_data,  1, 3)); // hardcoded: 0x0000
542                                 $atom_structure['component_type']         =                           substr($atom_data,  4, 4);
543                                 $atom_structure['component_subtype']      =                           substr($atom_data,  8, 4);
544                                 $atom_structure['component_manufacturer'] =                           substr($atom_data, 12, 4);
545                                 $atom_structure['component_flags_raw']    = getid3_lib::BigEndian2Int(substr($atom_data, 16, 4));
546                                 $atom_structure['component_flags_mask']   = getid3_lib::BigEndian2Int(substr($atom_data, 20, 4));
547                                 $atom_structure['component_min_version']  = getid3_lib::BigEndian2Int(substr($atom_data, 24, 4));
548                                 break;
549
550
551                         case 'rmdr': // Reference Movie Data Rate atom
552                                 $atom_structure['version']       = getid3_lib::BigEndian2Int(substr($atom_data,  0, 1));
553                                 $atom_structure['flags_raw']     = getid3_lib::BigEndian2Int(substr($atom_data,  1, 3)); // hardcoded: 0x0000
554                                 $atom_structure['data_rate']     = getid3_lib::BigEndian2Int(substr($atom_data,  4, 4));
555
556                                 $atom_structure['data_rate_bps'] = $atom_structure['data_rate'] * 10;
557                                 break;
558
559
560                         case 'rmla': // Reference Movie Language Atom
561                                 $atom_structure['version']     = getid3_lib::BigEndian2Int(substr($atom_data,  0, 1));
562                                 $atom_structure['flags_raw']   = getid3_lib::BigEndian2Int(substr($atom_data,  1, 3)); // hardcoded: 0x0000
563                                 $atom_structure['language_id'] = getid3_lib::BigEndian2Int(substr($atom_data,  4, 2));
564
565                                 $atom_structure['language']    = $this->QuicktimeLanguageLookup($atom_structure['language_id']);
566                                 if (empty($info['comments']['language']) || (!in_array($atom_structure['language'], $info['comments']['language']))) {
567                                         $info['comments']['language'][] = $atom_structure['language'];
568                                 }
569                                 break;
570
571
572                         case 'rmla': // Reference Movie Language Atom
573                                 $atom_structure['version']   = getid3_lib::BigEndian2Int(substr($atom_data,  0, 1));
574                                 $atom_structure['flags_raw'] = getid3_lib::BigEndian2Int(substr($atom_data,  1, 3)); // hardcoded: 0x0000
575                                 $atom_structure['track_id']  = getid3_lib::BigEndian2Int(substr($atom_data,  4, 2));
576                                 break;
577
578
579                         case 'ptv ': // Print To Video - defines a movie's full screen mode
580                                 // http://developer.apple.com/documentation/QuickTime/APIREF/SOURCESIV/at_ptv-_pg.htm
581                                 $atom_structure['display_size_raw']  = getid3_lib::BigEndian2Int(substr($atom_data, 0, 2));
582                                 $atom_structure['reserved_1']        = getid3_lib::BigEndian2Int(substr($atom_data, 2, 2)); // hardcoded: 0x0000
583                                 $atom_structure['reserved_2']        = getid3_lib::BigEndian2Int(substr($atom_data, 4, 2)); // hardcoded: 0x0000
584                                 $atom_structure['slide_show_flag']   = getid3_lib::BigEndian2Int(substr($atom_data, 6, 1));
585                                 $atom_structure['play_on_open_flag'] = getid3_lib::BigEndian2Int(substr($atom_data, 7, 1));
586
587                                 $atom_structure['flags']['play_on_open'] = (bool) $atom_structure['play_on_open_flag'];
588                                 $atom_structure['flags']['slide_show']   = (bool) $atom_structure['slide_show_flag'];
589
590                                 $ptv_lookup[0] = 'normal';
591                                 $ptv_lookup[1] = 'double';
592                                 $ptv_lookup[2] = 'half';
593                                 $ptv_lookup[3] = 'full';
594                                 $ptv_lookup[4] = 'current';
595                                 if (isset($ptv_lookup[$atom_structure['display_size_raw']])) {
596                                         $atom_structure['display_size'] = $ptv_lookup[$atom_structure['display_size_raw']];
597                                 } else {
598                                         $info['warning'][] = 'unknown "ptv " display constant ('.$atom_structure['display_size_raw'].')';
599                                 }
600                                 break;
601
602
603                         case 'stsd': // Sample Table Sample Description atom
604                                 $atom_structure['version']        = getid3_lib::BigEndian2Int(substr($atom_data,  0, 1));
605                                 $atom_structure['flags_raw']      = getid3_lib::BigEndian2Int(substr($atom_data,  1, 3)); // hardcoded: 0x0000
606                                 $atom_structure['number_entries'] = getid3_lib::BigEndian2Int(substr($atom_data,  4, 4));
607                                 $stsdEntriesDataOffset = 8;
608                                 for ($i = 0; $i < $atom_structure['number_entries']; $i++) {
609                                         $atom_structure['sample_description_table'][$i]['size']             = getid3_lib::BigEndian2Int(substr($atom_data, $stsdEntriesDataOffset, 4));
610                                         $stsdEntriesDataOffset += 4;
611                                         $atom_structure['sample_description_table'][$i]['data_format']      =                           substr($atom_data, $stsdEntriesDataOffset, 4);
612                                         $stsdEntriesDataOffset += 4;
613                                         $atom_structure['sample_description_table'][$i]['reserved']         = getid3_lib::BigEndian2Int(substr($atom_data, $stsdEntriesDataOffset, 6));
614                                         $stsdEntriesDataOffset += 6;
615                                         $atom_structure['sample_description_table'][$i]['reference_index']  = getid3_lib::BigEndian2Int(substr($atom_data, $stsdEntriesDataOffset, 2));
616                                         $stsdEntriesDataOffset += 2;
617                                         $atom_structure['sample_description_table'][$i]['data']             =                           substr($atom_data, $stsdEntriesDataOffset, ($atom_structure['sample_description_table'][$i]['size'] - 4 - 4 - 6 - 2));
618                                         $stsdEntriesDataOffset += ($atom_structure['sample_description_table'][$i]['size'] - 4 - 4 - 6 - 2);
619
620                                         $atom_structure['sample_description_table'][$i]['encoder_version']  = getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'],  0, 2));
621                                         $atom_structure['sample_description_table'][$i]['encoder_revision'] = getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'],  2, 2));
622                                         $atom_structure['sample_description_table'][$i]['encoder_vendor']   =                           substr($atom_structure['sample_description_table'][$i]['data'],  4, 4);
623
624                                         switch ($atom_structure['sample_description_table'][$i]['encoder_vendor']) {
625
626                                                 case "\x00\x00\x00\x00":
627                                                         // audio tracks
628                                                         $atom_structure['sample_description_table'][$i]['audio_channels']       =   getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'],  8,  2));
629                                                         $atom_structure['sample_description_table'][$i]['audio_bit_depth']      =   getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'], 10,  2));
630                                                         $atom_structure['sample_description_table'][$i]['audio_compression_id'] =   getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'], 12,  2));
631                                                         $atom_structure['sample_description_table'][$i]['audio_packet_size']    =   getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'], 14,  2));
632                                                         $atom_structure['sample_description_table'][$i]['audio_sample_rate']    = getid3_lib::FixedPoint16_16(substr($atom_structure['sample_description_table'][$i]['data'], 16,  4));
633
634                                                         // video tracks
635                                                         // http://developer.apple.com/library/mac/#documentation/QuickTime/QTFF/QTFFChap3/qtff3.html
636                                                         $atom_structure['sample_description_table'][$i]['temporal_quality'] =   getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'],  8,  4));
637                                                         $atom_structure['sample_description_table'][$i]['spatial_quality']  =   getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'], 12,  4));
638                                                         $atom_structure['sample_description_table'][$i]['width']            =   getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'], 16,  2));
639                                                         $atom_structure['sample_description_table'][$i]['height']           =   getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'], 18,  2));
640                                                         $atom_structure['sample_description_table'][$i]['resolution_x']     = getid3_lib::FixedPoint16_16(substr($atom_structure['sample_description_table'][$i]['data'], 24,  4));
641                                                         $atom_structure['sample_description_table'][$i]['resolution_y']     = getid3_lib::FixedPoint16_16(substr($atom_structure['sample_description_table'][$i]['data'], 28,  4));
642                                                         $atom_structure['sample_description_table'][$i]['data_size']        =   getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'], 32,  4));
643                                                         $atom_structure['sample_description_table'][$i]['frame_count']      =   getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'], 36,  2));
644                                                         $atom_structure['sample_description_table'][$i]['compressor_name']  =                             substr($atom_structure['sample_description_table'][$i]['data'], 38,  4);
645                                                         $atom_structure['sample_description_table'][$i]['pixel_depth']      =   getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'], 42,  2));
646                                                         $atom_structure['sample_description_table'][$i]['color_table_id']   =   getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'], 44,  2));
647
648                                                         switch ($atom_structure['sample_description_table'][$i]['data_format']) {
649                                                                 case '2vuY':
650                                                                 case 'avc1':
651                                                                 case 'cvid':
652                                                                 case 'dvc ':
653                                                                 case 'dvcp':
654                                                                 case 'gif ':
655                                                                 case 'h263':
656                                                                 case 'jpeg':
657                                                                 case 'kpcd':
658                                                                 case 'mjpa':
659                                                                 case 'mjpb':
660                                                                 case 'mp4v':
661                                                                 case 'png ':
662                                                                 case 'raw ':
663                                                                 case 'rle ':
664                                                                 case 'rpza':
665                                                                 case 'smc ':
666                                                                 case 'SVQ1':
667                                                                 case 'SVQ3':
668                                                                 case 'tiff':
669                                                                 case 'v210':
670                                                                 case 'v216':
671                                                                 case 'v308':
672                                                                 case 'v408':
673                                                                 case 'v410':
674                                                                 case 'yuv2':
675                                                                         $info['fileformat'] = 'mp4';
676                                                                         $info['video']['fourcc'] = $atom_structure['sample_description_table'][$i]['data_format'];
677 // http://www.getid3.org/phpBB3/viewtopic.php?t=1550
678 //if ((!empty($atom_structure['sample_description_table'][$i]['width']) && !empty($atom_structure['sample_description_table'][$i]['width'])) && (empty($info['video']['resolution_x']) || empty($info['video']['resolution_y']) || (number_format($info['video']['resolution_x'], 6) != number_format(round($info['video']['resolution_x']), 6)) || (number_format($info['video']['resolution_y'], 6) != number_format(round($info['video']['resolution_y']), 6)))) { // ugly check for floating point numbers
679 if (!empty($atom_structure['sample_description_table'][$i]['width']) && !empty($atom_structure['sample_description_table'][$i]['height'])) {
680         // assume that values stored here are more important than values stored in [tkhd] atom
681         $info['video']['resolution_x'] = $atom_structure['sample_description_table'][$i]['width'];
682         $info['video']['resolution_y'] = $atom_structure['sample_description_table'][$i]['height'];
683         $info['quicktime']['video']['resolution_x'] = $info['video']['resolution_x'];
684         $info['quicktime']['video']['resolution_y'] = $info['video']['resolution_y'];
685 }
686                                                                         break;
687
688                                                                 case 'qtvr':
689                                                                         $info['video']['dataformat'] = 'quicktimevr';
690                                                                         break;
691
692                                                                 case 'mp4a':
693                                                                 default:
694                                                                         $info['quicktime']['audio']['codec']       = $this->QuicktimeAudioCodecLookup($atom_structure['sample_description_table'][$i]['data_format']);
695                                                                         $info['quicktime']['audio']['sample_rate'] = $atom_structure['sample_description_table'][$i]['audio_sample_rate'];
696                                                                         $info['quicktime']['audio']['channels']    = $atom_structure['sample_description_table'][$i]['audio_channels'];
697                                                                         $info['quicktime']['audio']['bit_depth']   = $atom_structure['sample_description_table'][$i]['audio_bit_depth'];
698                                                                         $info['audio']['codec']                    = $info['quicktime']['audio']['codec'];
699                                                                         $info['audio']['sample_rate']              = $info['quicktime']['audio']['sample_rate'];
700                                                                         $info['audio']['channels']                 = $info['quicktime']['audio']['channels'];
701                                                                         $info['audio']['bits_per_sample']          = $info['quicktime']['audio']['bit_depth'];
702                                                                         switch ($atom_structure['sample_description_table'][$i]['data_format']) {
703                                                                                 case 'raw ': // PCM
704                                                                                 case 'alac': // Apple Lossless Audio Codec
705                                                                                         $info['audio']['lossless'] = true;
706                                                                                         break;
707                                                                                 default:
708                                                                                         $info['audio']['lossless'] = false;
709                                                                                         break;
710                                                                         }
711                                                                         break;
712                                                         }
713                                                         break;
714
715                                                 default:
716                                                         switch ($atom_structure['sample_description_table'][$i]['data_format']) {
717                                                                 case 'mp4s':
718                                                                         $info['fileformat'] = 'mp4';
719                                                                         break;
720
721                                                                 default:
722                                                                         // video atom
723                                                                         $atom_structure['sample_description_table'][$i]['video_temporal_quality']  =   getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'],  8,  4));
724                                                                         $atom_structure['sample_description_table'][$i]['video_spatial_quality']   =   getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'], 12,  4));
725                                                                         $atom_structure['sample_description_table'][$i]['video_frame_width']       =   getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'], 16,  2));
726                                                                         $atom_structure['sample_description_table'][$i]['video_frame_height']      =   getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'], 18,  2));
727                                                                         $atom_structure['sample_description_table'][$i]['video_resolution_x']      = getid3_lib::FixedPoint16_16(substr($atom_structure['sample_description_table'][$i]['data'], 20,  4));
728                                                                         $atom_structure['sample_description_table'][$i]['video_resolution_y']      = getid3_lib::FixedPoint16_16(substr($atom_structure['sample_description_table'][$i]['data'], 24,  4));
729                                                                         $atom_structure['sample_description_table'][$i]['video_data_size']         =   getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'], 28,  4));
730                                                                         $atom_structure['sample_description_table'][$i]['video_frame_count']       =   getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'], 32,  2));
731                                                                         $atom_structure['sample_description_table'][$i]['video_encoder_name_len']  =   getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'], 34,  1));
732                                                                         $atom_structure['sample_description_table'][$i]['video_encoder_name']      =                             substr($atom_structure['sample_description_table'][$i]['data'], 35, $atom_structure['sample_description_table'][$i]['video_encoder_name_len']);
733                                                                         $atom_structure['sample_description_table'][$i]['video_pixel_color_depth'] =   getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'], 66,  2));
734                                                                         $atom_structure['sample_description_table'][$i]['video_color_table_id']    =   getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'], 68,  2));
735
736                                                                         $atom_structure['sample_description_table'][$i]['video_pixel_color_type']  = (($atom_structure['sample_description_table'][$i]['video_pixel_color_depth'] > 32) ? 'grayscale' : 'color');
737                                                                         $atom_structure['sample_description_table'][$i]['video_pixel_color_name']  = $this->QuicktimeColorNameLookup($atom_structure['sample_description_table'][$i]['video_pixel_color_depth']);
738
739                                                                         if ($atom_structure['sample_description_table'][$i]['video_pixel_color_name'] != 'invalid') {
740                                                                                 $info['quicktime']['video']['codec_fourcc']        = $atom_structure['sample_description_table'][$i]['data_format'];
741                                                                                 $info['quicktime']['video']['codec_fourcc_lookup'] = $this->QuicktimeVideoCodecLookup($atom_structure['sample_description_table'][$i]['data_format']);
742                                                                                 $info['quicktime']['video']['codec']               = (($atom_structure['sample_description_table'][$i]['video_encoder_name_len'] > 0) ? $atom_structure['sample_description_table'][$i]['video_encoder_name'] : $atom_structure['sample_description_table'][$i]['data_format']);
743                                                                                 $info['quicktime']['video']['color_depth']         = $atom_structure['sample_description_table'][$i]['video_pixel_color_depth'];
744                                                                                 $info['quicktime']['video']['color_depth_name']    = $atom_structure['sample_description_table'][$i]['video_pixel_color_name'];
745
746                                                                                 $info['video']['codec']           = $info['quicktime']['video']['codec'];
747                                                                                 $info['video']['bits_per_sample'] = $info['quicktime']['video']['color_depth'];
748                                                                         }
749                                                                         $info['video']['lossless']           = false;
750                                                                         $info['video']['pixel_aspect_ratio'] = (float) 1;
751                                                                         break;
752                                                         }
753                                                         break;
754                                         }
755                                         switch (strtolower($atom_structure['sample_description_table'][$i]['data_format'])) {
756                                                 case 'mp4a':
757                                                         $info['audio']['dataformat']         = 'mp4';
758                                                         $info['quicktime']['audio']['codec'] = 'mp4';
759                                                         break;
760
761                                                 case '3ivx':
762                                                 case '3iv1':
763                                                 case '3iv2':
764                                                         $info['video']['dataformat'] = '3ivx';
765                                                         break;
766
767                                                 case 'xvid':
768                                                         $info['video']['dataformat'] = 'xvid';
769                                                         break;
770
771                                                 case 'mp4v':
772                                                         $info['video']['dataformat'] = 'mpeg4';
773                                                         break;
774
775                                                 case 'divx':
776                                                 case 'div1':
777                                                 case 'div2':
778                                                 case 'div3':
779                                                 case 'div4':
780                                                 case 'div5':
781                                                 case 'div6':
782                                                         $info['video']['dataformat'] = 'divx';
783                                                         break;
784
785                                                 default:
786                                                         // do nothing
787                                                         break;
788                                         }
789                                         unset($atom_structure['sample_description_table'][$i]['data']);
790                                 }
791                                 break;
792
793
794                         case 'stts': // Sample Table Time-to-Sample atom
795                                 $atom_structure['version']        = getid3_lib::BigEndian2Int(substr($atom_data,  0, 1));
796                                 $atom_structure['flags_raw']      = getid3_lib::BigEndian2Int(substr($atom_data,  1, 3)); // hardcoded: 0x0000
797                                 $atom_structure['number_entries'] = getid3_lib::BigEndian2Int(substr($atom_data,  4, 4));
798                                 $sttsEntriesDataOffset = 8;
799                                 //$FrameRateCalculatorArray = array();
800                                 $frames_count = 0;
801
802                                 $max_stts_entries_to_scan = ($info['php_memory_limit'] ? min(floor($this->getid3->memory_limit / 10000), $atom_structure['number_entries']) : $atom_structure['number_entries']);
803                                 if ($max_stts_entries_to_scan < $atom_structure['number_entries']) {
804                                         $info['warning'][] = 'QuickTime atom "stts" has '.$atom_structure['number_entries'].' but only scanning the first '.$max_stts_entries_to_scan.' entries due to limited PHP memory available ('.floor($atom_structure['number_entries'] / 1048576).'MB).';
805                                 }
806                                 for ($i = 0; $i < $max_stts_entries_to_scan; $i++) {
807                                         $atom_structure['time_to_sample_table'][$i]['sample_count']    = getid3_lib::BigEndian2Int(substr($atom_data, $sttsEntriesDataOffset, 4));
808                                         $sttsEntriesDataOffset += 4;
809                                         $atom_structure['time_to_sample_table'][$i]['sample_duration'] = getid3_lib::BigEndian2Int(substr($atom_data, $sttsEntriesDataOffset, 4));
810                                         $sttsEntriesDataOffset += 4;
811
812                                         $frames_count += $atom_structure['time_to_sample_table'][$i]['sample_count'];
813
814                                         // THIS SECTION REPLACED WITH CODE IN "stbl" ATOM
815                                         //if (!empty($info['quicktime']['time_scale']) && ($atom_structure['time_to_sample_table'][$i]['sample_duration'] > 0)) {
816                                         //      $stts_new_framerate = $info['quicktime']['time_scale'] / $atom_structure['time_to_sample_table'][$i]['sample_duration'];
817                                         //      if ($stts_new_framerate <= 60) {
818                                         //              // some atoms have durations of "1" giving a very large framerate, which probably is not right
819                                         //              $info['video']['frame_rate'] = max($info['video']['frame_rate'], $stts_new_framerate);
820                                         //      }
821                                         //}
822                                         //
823                                         //$FrameRateCalculatorArray[($info['quicktime']['time_scale'] / $atom_structure['time_to_sample_table'][$i]['sample_duration'])] += $atom_structure['time_to_sample_table'][$i]['sample_count'];
824                                 }
825                                 $info['quicktime']['stts_framecount'][] = $frames_count;
826                                 //$sttsFramesTotal  = 0;
827                                 //$sttsSecondsTotal = 0;
828                                 //foreach ($FrameRateCalculatorArray as $frames_per_second => $frame_count) {
829                                 //      if (($frames_per_second > 60) || ($frames_per_second < 1)) {
830                                 //              // not video FPS information, probably audio information
831                                 //              $sttsFramesTotal  = 0;
832                                 //              $sttsSecondsTotal = 0;
833                                 //              break;
834                                 //      }
835                                 //      $sttsFramesTotal  += $frame_count;
836                                 //      $sttsSecondsTotal += $frame_count / $frames_per_second;
837                                 //}
838                                 //if (($sttsFramesTotal > 0) && ($sttsSecondsTotal > 0)) {
839                                 //      if (($sttsFramesTotal / $sttsSecondsTotal) > $info['video']['frame_rate']) {
840                                 //              $info['video']['frame_rate'] = $sttsFramesTotal / $sttsSecondsTotal;
841                                 //      }
842                                 //}
843                                 break;
844
845
846                         case 'stss': // Sample Table Sync Sample (key frames) atom
847                                 if ($ParseAllPossibleAtoms) {
848                                         $atom_structure['version']        = getid3_lib::BigEndian2Int(substr($atom_data,  0, 1));
849                                         $atom_structure['flags_raw']      = getid3_lib::BigEndian2Int(substr($atom_data,  1, 3)); // hardcoded: 0x0000
850                                         $atom_structure['number_entries'] = getid3_lib::BigEndian2Int(substr($atom_data,  4, 4));
851                                         $stssEntriesDataOffset = 8;
852                                         for ($i = 0; $i < $atom_structure['number_entries']; $i++) {
853                                                 $atom_structure['time_to_sample_table'][$i] = getid3_lib::BigEndian2Int(substr($atom_data, $stssEntriesDataOffset, 4));
854                                                 $stssEntriesDataOffset += 4;
855                                         }
856                                 }
857                                 break;
858
859
860                         case 'stsc': // Sample Table Sample-to-Chunk atom
861                                 if ($ParseAllPossibleAtoms) {
862                                         $atom_structure['version']        = getid3_lib::BigEndian2Int(substr($atom_data,  0, 1));
863                                         $atom_structure['flags_raw']      = getid3_lib::BigEndian2Int(substr($atom_data,  1, 3)); // hardcoded: 0x0000
864                                         $atom_structure['number_entries'] = getid3_lib::BigEndian2Int(substr($atom_data,  4, 4));
865                                         $stscEntriesDataOffset = 8;
866                                         for ($i = 0; $i < $atom_structure['number_entries']; $i++) {
867                                                 $atom_structure['sample_to_chunk_table'][$i]['first_chunk']        = getid3_lib::BigEndian2Int(substr($atom_data, $stscEntriesDataOffset, 4));
868                                                 $stscEntriesDataOffset += 4;
869                                                 $atom_structure['sample_to_chunk_table'][$i]['samples_per_chunk']  = getid3_lib::BigEndian2Int(substr($atom_data, $stscEntriesDataOffset, 4));
870                                                 $stscEntriesDataOffset += 4;
871                                                 $atom_structure['sample_to_chunk_table'][$i]['sample_description'] = getid3_lib::BigEndian2Int(substr($atom_data, $stscEntriesDataOffset, 4));
872                                                 $stscEntriesDataOffset += 4;
873                                         }
874                                 }
875                                 break;
876
877
878                         case 'stsz': // Sample Table SiZe atom
879                                 if ($ParseAllPossibleAtoms) {
880                                         $atom_structure['version']        = getid3_lib::BigEndian2Int(substr($atom_data,  0, 1));
881                                         $atom_structure['flags_raw']      = getid3_lib::BigEndian2Int(substr($atom_data,  1, 3)); // hardcoded: 0x0000
882                                         $atom_structure['sample_size']    = getid3_lib::BigEndian2Int(substr($atom_data,  4, 4));
883                                         $atom_structure['number_entries'] = getid3_lib::BigEndian2Int(substr($atom_data,  8, 4));
884                                         $stszEntriesDataOffset = 12;
885                                         if ($atom_structure['sample_size'] == 0) {
886                                                 for ($i = 0; $i < $atom_structure['number_entries']; $i++) {
887                                                         $atom_structure['sample_size_table'][$i] = getid3_lib::BigEndian2Int(substr($atom_data, $stszEntriesDataOffset, 4));
888                                                         $stszEntriesDataOffset += 4;
889                                                 }
890                                         }
891                                 }
892                                 break;
893
894
895                         case 'stco': // Sample Table Chunk Offset atom
896                                 if ($ParseAllPossibleAtoms) {
897                                         $atom_structure['version']        = getid3_lib::BigEndian2Int(substr($atom_data,  0, 1));
898                                         $atom_structure['flags_raw']      = getid3_lib::BigEndian2Int(substr($atom_data,  1, 3)); // hardcoded: 0x0000
899                                         $atom_structure['number_entries'] = getid3_lib::BigEndian2Int(substr($atom_data,  4, 4));
900                                         $stcoEntriesDataOffset = 8;
901                                         for ($i = 0; $i < $atom_structure['number_entries']; $i++) {
902                                                 $atom_structure['chunk_offset_table'][$i] = getid3_lib::BigEndian2Int(substr($atom_data, $stcoEntriesDataOffset, 4));
903                                                 $stcoEntriesDataOffset += 4;
904                                         }
905                                 }
906                                 break;
907
908
909                         case 'co64': // Chunk Offset 64-bit (version of "stco" that supports > 2GB files)
910                                 if ($ParseAllPossibleAtoms) {
911                                         $atom_structure['version']        = getid3_lib::BigEndian2Int(substr($atom_data,  0, 1));
912                                         $atom_structure['flags_raw']      = getid3_lib::BigEndian2Int(substr($atom_data,  1, 3)); // hardcoded: 0x0000
913                                         $atom_structure['number_entries'] = getid3_lib::BigEndian2Int(substr($atom_data,  4, 4));
914                                         $stcoEntriesDataOffset = 8;
915                                         for ($i = 0; $i < $atom_structure['number_entries']; $i++) {
916                                                 $atom_structure['chunk_offset_table'][$i] = getid3_lib::BigEndian2Int(substr($atom_data, $stcoEntriesDataOffset, 8));
917                                                 $stcoEntriesDataOffset += 8;
918                                         }
919                                 }
920                                 break;
921
922
923                         case 'dref': // Data REFerence atom
924                                 $atom_structure['version']        = getid3_lib::BigEndian2Int(substr($atom_data,  0, 1));
925                                 $atom_structure['flags_raw']      = getid3_lib::BigEndian2Int(substr($atom_data,  1, 3)); // hardcoded: 0x0000
926                                 $atom_structure['number_entries'] = getid3_lib::BigEndian2Int(substr($atom_data,  4, 4));
927                                 $drefDataOffset = 8;
928                                 for ($i = 0; $i < $atom_structure['number_entries']; $i++) {
929                                         $atom_structure['data_references'][$i]['size']                    = getid3_lib::BigEndian2Int(substr($atom_data, $drefDataOffset, 4));
930                                         $drefDataOffset += 4;
931                                         $atom_structure['data_references'][$i]['type']                    =               substr($atom_data, $drefDataOffset, 4);
932                                         $drefDataOffset += 4;
933                                         $atom_structure['data_references'][$i]['version']                 = getid3_lib::BigEndian2Int(substr($atom_data,  $drefDataOffset, 1));
934                                         $drefDataOffset += 1;
935                                         $atom_structure['data_references'][$i]['flags_raw']               = getid3_lib::BigEndian2Int(substr($atom_data,  $drefDataOffset, 3)); // hardcoded: 0x0000
936                                         $drefDataOffset += 3;
937                                         $atom_structure['data_references'][$i]['data']                    =               substr($atom_data, $drefDataOffset, ($atom_structure['data_references'][$i]['size'] - 4 - 4 - 1 - 3));
938                                         $drefDataOffset += ($atom_structure['data_references'][$i]['size'] - 4 - 4 - 1 - 3);
939
940                                         $atom_structure['data_references'][$i]['flags']['self_reference'] = (bool) ($atom_structure['data_references'][$i]['flags_raw'] & 0x001);
941                                 }
942                                 break;
943
944
945                         case 'gmin': // base Media INformation atom
946                                 $atom_structure['version']                = getid3_lib::BigEndian2Int(substr($atom_data,  0, 1));
947                                 $atom_structure['flags_raw']              = getid3_lib::BigEndian2Int(substr($atom_data,  1, 3)); // hardcoded: 0x0000
948                                 $atom_structure['graphics_mode']          = getid3_lib::BigEndian2Int(substr($atom_data,  4, 2));
949                                 $atom_structure['opcolor_red']            = getid3_lib::BigEndian2Int(substr($atom_data,  6, 2));
950                                 $atom_structure['opcolor_green']          = getid3_lib::BigEndian2Int(substr($atom_data,  8, 2));
951                                 $atom_structure['opcolor_blue']           = getid3_lib::BigEndian2Int(substr($atom_data, 10, 2));
952                                 $atom_structure['balance']                = getid3_lib::BigEndian2Int(substr($atom_data, 12, 2));
953                                 $atom_structure['reserved']               = getid3_lib::BigEndian2Int(substr($atom_data, 14, 2));
954                                 break;
955
956
957                         case 'smhd': // Sound Media information HeaDer atom
958                                 $atom_structure['version']                = getid3_lib::BigEndian2Int(substr($atom_data,  0, 1));
959                                 $atom_structure['flags_raw']              = getid3_lib::BigEndian2Int(substr($atom_data,  1, 3)); // hardcoded: 0x0000
960                                 $atom_structure['balance']                = getid3_lib::BigEndian2Int(substr($atom_data,  4, 2));
961                                 $atom_structure['reserved']               = getid3_lib::BigEndian2Int(substr($atom_data,  6, 2));
962                                 break;
963
964
965                         case 'vmhd': // Video Media information HeaDer atom
966                                 $atom_structure['version']                = getid3_lib::BigEndian2Int(substr($atom_data,  0, 1));
967                                 $atom_structure['flags_raw']              = getid3_lib::BigEndian2Int(substr($atom_data,  1, 3));
968                                 $atom_structure['graphics_mode']          = getid3_lib::BigEndian2Int(substr($atom_data,  4, 2));
969                                 $atom_structure['opcolor_red']            = getid3_lib::BigEndian2Int(substr($atom_data,  6, 2));
970                                 $atom_structure['opcolor_green']          = getid3_lib::BigEndian2Int(substr($atom_data,  8, 2));
971                                 $atom_structure['opcolor_blue']           = getid3_lib::BigEndian2Int(substr($atom_data, 10, 2));
972
973                                 $atom_structure['flags']['no_lean_ahead'] = (bool) ($atom_structure['flags_raw'] & 0x001);
974                                 break;
975
976
977                         case 'hdlr': // HanDLeR reference atom
978                                 $atom_structure['version']                = getid3_lib::BigEndian2Int(substr($atom_data,  0, 1));
979                                 $atom_structure['flags_raw']              = getid3_lib::BigEndian2Int(substr($atom_data,  1, 3)); // hardcoded: 0x0000
980                                 $atom_structure['component_type']         =                           substr($atom_data,  4, 4);
981                                 $atom_structure['component_subtype']      =                           substr($atom_data,  8, 4);
982                                 $atom_structure['component_manufacturer'] =                           substr($atom_data, 12, 4);
983                                 $atom_structure['component_flags_raw']    = getid3_lib::BigEndian2Int(substr($atom_data, 16, 4));
984                                 $atom_structure['component_flags_mask']   = getid3_lib::BigEndian2Int(substr($atom_data, 20, 4));
985                                 $atom_structure['component_name']         =      $this->Pascal2String(substr($atom_data, 24));
986
987                                 if (($atom_structure['component_subtype'] == 'STpn') && ($atom_structure['component_manufacturer'] == 'zzzz')) {
988                                         $info['video']['dataformat'] = 'quicktimevr';
989                                 }
990                                 break;
991
992
993                         case 'mdhd': // MeDia HeaDer atom
994                                 $atom_structure['version']               = getid3_lib::BigEndian2Int(substr($atom_data,  0, 1));
995                                 $atom_structure['flags_raw']             = getid3_lib::BigEndian2Int(substr($atom_data,  1, 3)); // hardcoded: 0x0000
996                                 $atom_structure['creation_time']         = getid3_lib::BigEndian2Int(substr($atom_data,  4, 4));
997                                 $atom_structure['modify_time']           = getid3_lib::BigEndian2Int(substr($atom_data,  8, 4));
998                                 $atom_structure['time_scale']            = getid3_lib::BigEndian2Int(substr($atom_data, 12, 4));
999                                 $atom_structure['duration']              = getid3_lib::BigEndian2Int(substr($atom_data, 16, 4));
1000                                 $atom_structure['language_id']           = getid3_lib::BigEndian2Int(substr($atom_data, 20, 2));
1001                                 $atom_structure['quality']               = getid3_lib::BigEndian2Int(substr($atom_data, 22, 2));
1002
1003                                 if ($atom_structure['time_scale'] == 0) {
1004                                         $info['error'][] = 'Corrupt Quicktime file: mdhd.time_scale == zero';
1005                                         return false;
1006                                 }
1007                                 $info['quicktime']['time_scale'] = (isset($info['quicktime']['time_scale']) ? max($info['quicktime']['time_scale'], $atom_structure['time_scale']) : $atom_structure['time_scale']);
1008
1009                                 $atom_structure['creation_time_unix']    = getid3_lib::DateMac2Unix($atom_structure['creation_time']);
1010                                 $atom_structure['modify_time_unix']      = getid3_lib::DateMac2Unix($atom_structure['modify_time']);
1011                                 $atom_structure['playtime_seconds']      = $atom_structure['duration'] / $atom_structure['time_scale'];
1012                                 $atom_structure['language']              = $this->QuicktimeLanguageLookup($atom_structure['language_id']);
1013                                 if (empty($info['comments']['language']) || (!in_array($atom_structure['language'], $info['comments']['language']))) {
1014                                         $info['comments']['language'][] = $atom_structure['language'];
1015                                 }
1016                                 break;
1017
1018
1019                         case 'pnot': // Preview atom
1020                                 $atom_structure['modification_date']      = getid3_lib::BigEndian2Int(substr($atom_data,  0, 4)); // "standard Macintosh format"
1021                                 $atom_structure['version_number']         = getid3_lib::BigEndian2Int(substr($atom_data,  4, 2)); // hardcoded: 0x00
1022                                 $atom_structure['atom_type']              =               substr($atom_data,  6, 4);        // usually: 'PICT'
1023                                 $atom_structure['atom_index']             = getid3_lib::BigEndian2Int(substr($atom_data, 10, 2)); // usually: 0x01
1024
1025                                 $atom_structure['modification_date_unix'] = getid3_lib::DateMac2Unix($atom_structure['modification_date']);
1026                                 break;
1027
1028
1029                         case 'crgn': // Clipping ReGioN atom
1030                                 $atom_structure['region_size']   = getid3_lib::BigEndian2Int(substr($atom_data,  0, 2)); // The Region size, Region boundary box,
1031                                 $atom_structure['boundary_box']  = getid3_lib::BigEndian2Int(substr($atom_data,  2, 8)); // and Clipping region data fields
1032                                 $atom_structure['clipping_data'] =               substr($atom_data, 10);           // constitute a QuickDraw region.
1033                                 break;
1034
1035
1036                         case 'load': // track LOAD settings atom
1037                                 $atom_structure['preload_start_time'] = getid3_lib::BigEndian2Int(substr($atom_data,  0, 4));
1038                                 $atom_structure['preload_duration']   = getid3_lib::BigEndian2Int(substr($atom_data,  4, 4));
1039                                 $atom_structure['preload_flags_raw']  = getid3_lib::BigEndian2Int(substr($atom_data,  8, 4));
1040                                 $atom_structure['default_hints_raw']  = getid3_lib::BigEndian2Int(substr($atom_data, 12, 4));
1041
1042                                 $atom_structure['default_hints']['double_buffer'] = (bool) ($atom_structure['default_hints_raw'] & 0x0020);
1043                                 $atom_structure['default_hints']['high_quality']  = (bool) ($atom_structure['default_hints_raw'] & 0x0100);
1044                                 break;
1045
1046
1047                         case 'tmcd': // TiMe CoDe atom
1048                         case 'chap': // CHAPter list atom
1049                         case 'sync': // SYNChronization atom
1050                         case 'scpt': // tranSCriPT atom
1051                         case 'ssrc': // non-primary SouRCe atom
1052                                 for ($i = 0; $i < strlen($atom_data); $i += 4) {
1053                                         @$atom_structure['track_id'][] = getid3_lib::BigEndian2Int(substr($atom_data, $i, 4));
1054                                 }
1055                                 break;
1056
1057
1058                         case 'elst': // Edit LiST atom
1059                                 $atom_structure['version']        = getid3_lib::BigEndian2Int(substr($atom_data,  0, 1));
1060                                 $atom_structure['flags_raw']      = getid3_lib::BigEndian2Int(substr($atom_data,  1, 3)); // hardcoded: 0x0000
1061                                 $atom_structure['number_entries'] = getid3_lib::BigEndian2Int(substr($atom_data,  4, 4));
1062                                 for ($i = 0; $i < $atom_structure['number_entries']; $i++ ) {
1063                                         $atom_structure['edit_list'][$i]['track_duration'] =   getid3_lib::BigEndian2Int(substr($atom_data, 8 + ($i * 12) + 0, 4));
1064                                         $atom_structure['edit_list'][$i]['media_time']     =   getid3_lib::BigEndian2Int(substr($atom_data, 8 + ($i * 12) + 4, 4));
1065                                         $atom_structure['edit_list'][$i]['media_rate']     = getid3_lib::FixedPoint16_16(substr($atom_data, 8 + ($i * 12) + 8, 4));
1066                                 }
1067                                 break;
1068
1069
1070                         case 'kmat': // compressed MATte atom
1071                                 $atom_structure['version']        = getid3_lib::BigEndian2Int(substr($atom_data,  0, 1));
1072                                 $atom_structure['flags_raw']      = getid3_lib::BigEndian2Int(substr($atom_data,  1, 3)); // hardcoded: 0x0000
1073                                 $atom_structure['matte_data_raw'] =               substr($atom_data,  4);
1074                                 break;
1075
1076
1077                         case 'ctab': // Color TABle atom
1078                                 $atom_structure['color_table_seed']   = getid3_lib::BigEndian2Int(substr($atom_data,  0, 4)); // hardcoded: 0x00000000
1079                                 $atom_structure['color_table_flags']  = getid3_lib::BigEndian2Int(substr($atom_data,  4, 2)); // hardcoded: 0x8000
1080                                 $atom_structure['color_table_size']   = getid3_lib::BigEndian2Int(substr($atom_data,  6, 2)) + 1;
1081                                 for ($colortableentry = 0; $colortableentry < $atom_structure['color_table_size']; $colortableentry++) {
1082                                         $atom_structure['color_table'][$colortableentry]['alpha'] = getid3_lib::BigEndian2Int(substr($atom_data, 8 + ($colortableentry * 8) + 0, 2));
1083                                         $atom_structure['color_table'][$colortableentry]['red']   = getid3_lib::BigEndian2Int(substr($atom_data, 8 + ($colortableentry * 8) + 2, 2));
1084                                         $atom_structure['color_table'][$colortableentry]['green'] = getid3_lib::BigEndian2Int(substr($atom_data, 8 + ($colortableentry * 8) + 4, 2));
1085                                         $atom_structure['color_table'][$colortableentry]['blue']  = getid3_lib::BigEndian2Int(substr($atom_data, 8 + ($colortableentry * 8) + 6, 2));
1086                                 }
1087                                 break;
1088
1089
1090                         case 'mvhd': // MoVie HeaDer atom
1091                                 $atom_structure['version']            =   getid3_lib::BigEndian2Int(substr($atom_data,  0, 1));
1092                                 $atom_structure['flags_raw']          =   getid3_lib::BigEndian2Int(substr($atom_data,  1, 3));
1093                                 $atom_structure['creation_time']      =   getid3_lib::BigEndian2Int(substr($atom_data,  4, 4));
1094                                 $atom_structure['modify_time']        =   getid3_lib::BigEndian2Int(substr($atom_data,  8, 4));
1095                                 $atom_structure['time_scale']         =   getid3_lib::BigEndian2Int(substr($atom_data, 12, 4));
1096                                 $atom_structure['duration']           =   getid3_lib::BigEndian2Int(substr($atom_data, 16, 4));
1097                                 $atom_structure['preferred_rate']     = getid3_lib::FixedPoint16_16(substr($atom_data, 20, 4));
1098                                 $atom_structure['preferred_volume']   =   getid3_lib::FixedPoint8_8(substr($atom_data, 24, 2));
1099                                 $atom_structure['reserved']           =                             substr($atom_data, 26, 10);
1100                                 $atom_structure['matrix_a']           = getid3_lib::FixedPoint16_16(substr($atom_data, 36, 4));
1101                                 $atom_structure['matrix_b']           = getid3_lib::FixedPoint16_16(substr($atom_data, 40, 4));
1102                                 $atom_structure['matrix_u']           =  getid3_lib::FixedPoint2_30(substr($atom_data, 44, 4));
1103                                 $atom_structure['matrix_c']           = getid3_lib::FixedPoint16_16(substr($atom_data, 48, 4));
1104                                 $atom_structure['matrix_d']           = getid3_lib::FixedPoint16_16(substr($atom_data, 52, 4));
1105                                 $atom_structure['matrix_v']           =  getid3_lib::FixedPoint2_30(substr($atom_data, 56, 4));
1106                                 $atom_structure['matrix_x']           = getid3_lib::FixedPoint16_16(substr($atom_data, 60, 4));
1107                                 $atom_structure['matrix_y']           = getid3_lib::FixedPoint16_16(substr($atom_data, 64, 4));
1108                                 $atom_structure['matrix_w']           =  getid3_lib::FixedPoint2_30(substr($atom_data, 68, 4));
1109                                 $atom_structure['preview_time']       =   getid3_lib::BigEndian2Int(substr($atom_data, 72, 4));
1110                                 $atom_structure['preview_duration']   =   getid3_lib::BigEndian2Int(substr($atom_data, 76, 4));
1111                                 $atom_structure['poster_time']        =   getid3_lib::BigEndian2Int(substr($atom_data, 80, 4));
1112                                 $atom_structure['selection_time']     =   getid3_lib::BigEndian2Int(substr($atom_data, 84, 4));
1113                                 $atom_structure['selection_duration'] =   getid3_lib::BigEndian2Int(substr($atom_data, 88, 4));
1114                                 $atom_structure['current_time']       =   getid3_lib::BigEndian2Int(substr($atom_data, 92, 4));
1115                                 $atom_structure['next_track_id']      =   getid3_lib::BigEndian2Int(substr($atom_data, 96, 4));
1116
1117                                 if ($atom_structure['time_scale'] == 0) {
1118                                         $info['error'][] = 'Corrupt Quicktime file: mvhd.time_scale == zero';
1119                                         return false;
1120                                 }
1121                                 $atom_structure['creation_time_unix']        = getid3_lib::DateMac2Unix($atom_structure['creation_time']);
1122                                 $atom_structure['modify_time_unix']          = getid3_lib::DateMac2Unix($atom_structure['modify_time']);
1123                                 $info['quicktime']['time_scale']    = (isset($info['quicktime']['time_scale']) ? max($info['quicktime']['time_scale'], $atom_structure['time_scale']) : $atom_structure['time_scale']);
1124                                 $info['quicktime']['display_scale'] = $atom_structure['matrix_a'];
1125                                 $info['playtime_seconds']           = $atom_structure['duration'] / $atom_structure['time_scale'];
1126                                 break;
1127
1128
1129                         case 'tkhd': // TracK HeaDer atom
1130                                 $atom_structure['version']             =   getid3_lib::BigEndian2Int(substr($atom_data,  0, 1));
1131                                 $atom_structure['flags_raw']           =   getid3_lib::BigEndian2Int(substr($atom_data,  1, 3));
1132                                 $atom_structure['creation_time']       =   getid3_lib::BigEndian2Int(substr($atom_data,  4, 4));
1133                                 $atom_structure['modify_time']         =   getid3_lib::BigEndian2Int(substr($atom_data,  8, 4));
1134                                 $atom_structure['trackid']             =   getid3_lib::BigEndian2Int(substr($atom_data, 12, 4));
1135                                 $atom_structure['reserved1']           =   getid3_lib::BigEndian2Int(substr($atom_data, 16, 4));
1136                                 $atom_structure['duration']            =   getid3_lib::BigEndian2Int(substr($atom_data, 20, 4));
1137                                 $atom_structure['reserved2']           =   getid3_lib::BigEndian2Int(substr($atom_data, 24, 8));
1138                                 $atom_structure['layer']               =   getid3_lib::BigEndian2Int(substr($atom_data, 32, 2));
1139                                 $atom_structure['alternate_group']     =   getid3_lib::BigEndian2Int(substr($atom_data, 34, 2));
1140                                 $atom_structure['volume']              =   getid3_lib::FixedPoint8_8(substr($atom_data, 36, 2));
1141                                 $atom_structure['reserved3']           =   getid3_lib::BigEndian2Int(substr($atom_data, 38, 2));
1142 // http://developer.apple.com/library/mac/#documentation/QuickTime/RM/MovieBasics/MTEditing/K-Chapter/11MatrixFunctions.html
1143 // http://developer.apple.com/library/mac/#documentation/QuickTime/qtff/QTFFChap4/qtff4.html#//apple_ref/doc/uid/TP40000939-CH206-18737
1144                                 $atom_structure['matrix_a']            = getid3_lib::FixedPoint16_16(substr($atom_data, 40, 4));
1145                                 $atom_structure['matrix_b']            = getid3_lib::FixedPoint16_16(substr($atom_data, 44, 4));
1146                                 $atom_structure['matrix_u']            =  getid3_lib::FixedPoint2_30(substr($atom_data, 48, 4));
1147                                 $atom_structure['matrix_c']            = getid3_lib::FixedPoint16_16(substr($atom_data, 52, 4));
1148                                 $atom_structure['matrix_d']            = getid3_lib::FixedPoint16_16(substr($atom_data, 56, 4));
1149                                 $atom_structure['matrix_v']            =  getid3_lib::FixedPoint2_30(substr($atom_data, 60, 4));
1150                                 $atom_structure['matrix_x']            = getid3_lib::FixedPoint16_16(substr($atom_data, 64, 4));
1151                                 $atom_structure['matrix_y']            = getid3_lib::FixedPoint16_16(substr($atom_data, 68, 4));
1152                                 $atom_structure['matrix_w']            =  getid3_lib::FixedPoint2_30(substr($atom_data, 72, 4));
1153                                 $atom_structure['width']               = getid3_lib::FixedPoint16_16(substr($atom_data, 76, 4));
1154                                 $atom_structure['height']              = getid3_lib::FixedPoint16_16(substr($atom_data, 80, 4));
1155                                 $atom_structure['flags']['enabled']    = (bool) ($atom_structure['flags_raw'] & 0x0001);
1156                                 $atom_structure['flags']['in_movie']   = (bool) ($atom_structure['flags_raw'] & 0x0002);
1157                                 $atom_structure['flags']['in_preview'] = (bool) ($atom_structure['flags_raw'] & 0x0004);
1158                                 $atom_structure['flags']['in_poster']  = (bool) ($atom_structure['flags_raw'] & 0x0008);
1159                                 $atom_structure['creation_time_unix']  = getid3_lib::DateMac2Unix($atom_structure['creation_time']);
1160                                 $atom_structure['modify_time_unix']    = getid3_lib::DateMac2Unix($atom_structure['modify_time']);
1161
1162                                 if ($atom_structure['flags']['enabled'] == 1) {
1163                                         if (!isset($info['video']['resolution_x']) || !isset($info['video']['resolution_y'])) {
1164                                                 $info['video']['resolution_x'] = $atom_structure['width'];
1165                                                 $info['video']['resolution_y'] = $atom_structure['height'];
1166                                         }
1167                                         $info['video']['resolution_x'] = max($info['video']['resolution_x'], $atom_structure['width']);
1168                                         $info['video']['resolution_y'] = max($info['video']['resolution_y'], $atom_structure['height']);
1169                                         $info['quicktime']['video']['resolution_x'] = $info['video']['resolution_x'];
1170                                         $info['quicktime']['video']['resolution_y'] = $info['video']['resolution_y'];
1171                                 } else {
1172                                         // see: http://www.getid3.org/phpBB3/viewtopic.php?t=1295
1173                                         //if (isset($info['video']['resolution_x'])) { unset($info['video']['resolution_x']); }
1174                                         //if (isset($info['video']['resolution_y'])) { unset($info['video']['resolution_y']); }
1175                                         //if (isset($info['quicktime']['video']))    { unset($info['quicktime']['video']);    }
1176                                 }
1177                                 break;
1178
1179
1180                         case 'iods': // Initial Object DeScriptor atom
1181                                 // http://www.koders.com/c/fid1FAB3E762903DC482D8A246D4A4BF9F28E049594.aspx?s=windows.h
1182                                 // http://libquicktime.sourcearchive.com/documentation/1.0.2plus-pdebian/iods_8c-source.html
1183                                 $offset = 0;
1184                                 $atom_structure['version']                =       getid3_lib::BigEndian2Int(substr($atom_data, $offset, 1));
1185                                 $offset += 1;
1186                                 $atom_structure['flags_raw']              =       getid3_lib::BigEndian2Int(substr($atom_data, $offset, 3));
1187                                 $offset += 3;
1188                                 $atom_structure['mp4_iod_tag']            =       getid3_lib::BigEndian2Int(substr($atom_data, $offset, 1));
1189                                 $offset += 1;
1190                                 $atom_structure['length']                 = $this->quicktime_read_mp4_descr_length($atom_data, $offset);
1191                                 //$offset already adjusted by quicktime_read_mp4_descr_length()
1192                                 $atom_structure['object_descriptor_id']   =       getid3_lib::BigEndian2Int(substr($atom_data, $offset, 2));
1193                                 $offset += 2;
1194                                 $atom_structure['od_profile_level']       =       getid3_lib::BigEndian2Int(substr($atom_data, $offset, 1));
1195                                 $offset += 1;
1196                                 $atom_structure['scene_profile_level']    =       getid3_lib::BigEndian2Int(substr($atom_data, $offset, 1));
1197                                 $offset += 1;
1198                                 $atom_structure['audio_profile_id']       =       getid3_lib::BigEndian2Int(substr($atom_data, $offset, 1));
1199                                 $offset += 1;
1200                                 $atom_structure['video_profile_id']       =       getid3_lib::BigEndian2Int(substr($atom_data, $offset, 1));
1201                                 $offset += 1;
1202                                 $atom_structure['graphics_profile_level'] =       getid3_lib::BigEndian2Int(substr($atom_data, $offset, 1));
1203                                 $offset += 1;
1204
1205                                 $atom_structure['num_iods_tracks'] = ($atom_structure['length'] - 7) / 6; // 6 bytes would only be right if all tracks use 1-byte length fields
1206                                 for ($i = 0; $i < $atom_structure['num_iods_tracks']; $i++) {
1207                                         $atom_structure['track'][$i]['ES_ID_IncTag'] =       getid3_lib::BigEndian2Int(substr($atom_data, $offset, 1));
1208                                         $offset += 1;
1209                                         $atom_structure['track'][$i]['length']       = $this->quicktime_read_mp4_descr_length($atom_data, $offset);
1210                                         //$offset already adjusted by quicktime_read_mp4_descr_length()
1211                                         $atom_structure['track'][$i]['track_id']     =       getid3_lib::BigEndian2Int(substr($atom_data, $offset, 4));
1212                                         $offset += 4;
1213                                 }
1214
1215                                 $atom_structure['audio_profile_name'] = $this->QuicktimeIODSaudioProfileName($atom_structure['audio_profile_id']);
1216                                 $atom_structure['video_profile_name'] = $this->QuicktimeIODSvideoProfileName($atom_structure['video_profile_id']);
1217                                 break;
1218
1219                         case 'ftyp': // FileTYPe (?) atom (for MP4 it seems)
1220                                 $atom_structure['signature'] =                           substr($atom_data,  0, 4);
1221                                 $atom_structure['unknown_1'] = getid3_lib::BigEndian2Int(substr($atom_data,  4, 4));
1222                                 $atom_structure['fourcc']    =                           substr($atom_data,  8, 4);
1223                                 break;
1224
1225                         case 'mdat': // Media DATa atom
1226                                 // 'mdat' contains the actual data for the audio/video, possibly also subtitles
1227
1228 /* due to lack of known documentation, this is a kludge implementation. If you know of documentation on how mdat is properly structed, please send it to info@getid3.org */
1229
1230                                 // first, skip any 'wide' padding, and second 'mdat' header (with specified size of zero?)
1231                                 $mdat_offset = 0;
1232                                 while (true) {
1233                                         if (substr($atom_data, $mdat_offset, 8) == "\x00\x00\x00\x08".'wide') {
1234                                                 $mdat_offset += 8;
1235                                         } elseif (substr($atom_data, $mdat_offset, 8) == "\x00\x00\x00\x00".'mdat') {
1236                                                 $mdat_offset += 8;
1237                                         } else {
1238                                                 break;
1239                                         }
1240                                 }
1241
1242                                 // check to see if it looks like chapter titles, in the form of unterminated strings with a leading 16-bit size field
1243                                 while  (($chapter_string_length = getid3_lib::BigEndian2Int(substr($atom_data, $mdat_offset, 2)))
1244                                         && ($chapter_string_length < 1000)
1245                                         && ($chapter_string_length <= (strlen($atom_data) - $mdat_offset - 2))
1246                                         && preg_match('#^[\x20-\xFF]+$#', substr($atom_data, $mdat_offset + 2, $chapter_string_length), $chapter_matches)) {
1247                                                 $mdat_offset += (2 + $chapter_string_length);
1248                                                 @$info['quicktime']['comments']['chapters'][] = $chapter_matches[0];
1249                                 }
1250
1251
1252
1253                                 if (($atomsize > 8) && (!isset($info['avdataend_tmp']) || ($info['quicktime'][$atomname]['size'] > ($info['avdataend_tmp'] - $info['avdataoffset'])))) {
1254
1255                                         $info['avdataoffset'] = $atom_structure['offset'] + 8;                       // $info['quicktime'][$atomname]['offset'] + 8;
1256                                         $OldAVDataEnd         = $info['avdataend'];
1257                                         $info['avdataend']    = $atom_structure['offset'] + $atom_structure['size']; // $info['quicktime'][$atomname]['offset'] + $info['quicktime'][$atomname]['size'];
1258
1259                                         $getid3_temp = new getID3();
1260                                         $getid3_temp->openfile($this->getid3->filename);
1261                                         $getid3_temp->info['avdataoffset'] = $info['avdataoffset'];
1262                                         $getid3_temp->info['avdataend']    = $info['avdataend'];
1263                                         $getid3_mp3 = new getid3_mp3($getid3_temp);
1264                                         if ($getid3_mp3->MPEGaudioHeaderValid($getid3_mp3->MPEGaudioHeaderDecode($this->fread(4)))) {
1265                                                 $getid3_mp3->getOnlyMPEGaudioInfo($getid3_temp->info['avdataoffset'], false);
1266                                                 if (!empty($getid3_temp->info['warning'])) {
1267                                                         foreach ($getid3_temp->info['warning'] as $value) {
1268                                                                 $info['warning'][] = $value;
1269                                                         }
1270                                                 }
1271                                                 if (!empty($getid3_temp->info['mpeg'])) {
1272                                                         $info['mpeg'] = $getid3_temp->info['mpeg'];
1273                                                         if (isset($info['mpeg']['audio'])) {
1274                                                                 $info['audio']['dataformat']   = 'mp3';
1275                                                                 $info['audio']['codec']        = (!empty($info['mpeg']['audio']['encoder']) ? $info['mpeg']['audio']['encoder'] : (!empty($info['mpeg']['audio']['codec']) ? $info['mpeg']['audio']['codec'] : (!empty($info['mpeg']['audio']['LAME']) ? 'LAME' :'mp3')));
1276                                                                 $info['audio']['sample_rate']  = $info['mpeg']['audio']['sample_rate'];
1277                                                                 $info['audio']['channels']     = $info['mpeg']['audio']['channels'];
1278                                                                 $info['audio']['bitrate']      = $info['mpeg']['audio']['bitrate'];
1279                                                                 $info['audio']['bitrate_mode'] = strtolower($info['mpeg']['audio']['bitrate_mode']);
1280                                                                 $info['bitrate']               = $info['audio']['bitrate'];
1281                                                         }
1282                                                 }
1283                                         }
1284                                         unset($getid3_mp3, $getid3_temp);
1285                                         $info['avdataend'] = $OldAVDataEnd;
1286                                         unset($OldAVDataEnd);
1287
1288                                 }
1289
1290                                 unset($mdat_offset, $chapter_string_length, $chapter_matches);
1291                                 break;
1292
1293                         case 'free': // FREE space atom
1294                         case 'skip': // SKIP atom
1295                         case 'wide': // 64-bit expansion placeholder atom
1296                                 // 'free', 'skip' and 'wide' are just padding, contains no useful data at all
1297
1298                                 // When writing QuickTime files, it is sometimes necessary to update an atom's size.
1299                                 // It is impossible to update a 32-bit atom to a 64-bit atom since the 32-bit atom
1300                                 // is only 8 bytes in size, and the 64-bit atom requires 16 bytes. Therefore, QuickTime
1301                                 // puts an 8-byte placeholder atom before any atoms it may have to update the size of.
1302                                 // In this way, if the atom needs to be converted from a 32-bit to a 64-bit atom, the
1303                                 // placeholder atom can be overwritten to obtain the necessary 8 extra bytes.
1304                                 // The placeholder atom has a type of kWideAtomPlaceholderType ( 'wide' ).
1305                                 break;
1306
1307
1308                         case 'nsav': // NoSAVe atom
1309                                 // http://developer.apple.com/technotes/tn/tn2038.html
1310                                 $atom_structure['data'] = getid3_lib::BigEndian2Int(substr($atom_data,  0, 4));
1311                                 break;
1312
1313                         case 'ctyp': // Controller TYPe atom (seen on QTVR)
1314                                 // http://homepages.slingshot.co.nz/~helmboy/quicktime/formats/qtm-layout.txt
1315                                 // some controller names are:
1316                                 //   0x00 + 'std' for linear movie
1317                                 //   'none' for no controls
1318                                 $atom_structure['ctyp'] = substr($atom_data, 0, 4);
1319                                 $info['quicktime']['controller'] = $atom_structure['ctyp'];
1320                                 switch ($atom_structure['ctyp']) {
1321                                         case 'qtvr':
1322                                                 $info['video']['dataformat'] = 'quicktimevr';
1323                                                 break;
1324                                 }
1325                                 break;
1326
1327                         case 'pano': // PANOrama track (seen on QTVR)
1328                                 $atom_structure['pano'] = getid3_lib::BigEndian2Int(substr($atom_data,  0, 4));
1329                                 break;
1330
1331                         case 'hint': // HINT track
1332                         case 'hinf': //
1333                         case 'hinv': //
1334                         case 'hnti': //
1335                                 $info['quicktime']['hinting'] = true;
1336                                 break;
1337
1338                         case 'imgt': // IMaGe Track reference (kQTVRImageTrackRefType) (seen on QTVR)
1339                                 for ($i = 0; $i < ($atom_structure['size'] - 8); $i += 4) {
1340                                         $atom_structure['imgt'][] = getid3_lib::BigEndian2Int(substr($atom_data, $i, 4));
1341                                 }
1342                                 break;
1343
1344
1345                         // Observed-but-not-handled atom types are just listed here to prevent warnings being generated
1346                         case 'FXTC': // Something to do with Adobe After Effects (?)
1347                         case 'PrmA':
1348                         case 'code':
1349                         case 'FIEL': // this is NOT "fiel" (Field Ordering) as describe here: http://developer.apple.com/documentation/QuickTime/QTFF/QTFFChap3/chapter_4_section_2.html
1350                         case 'tapt': // TrackApertureModeDimensionsAID - http://developer.apple.com/documentation/QuickTime/Reference/QT7-1_Update_Reference/Constants/Constants.html
1351                                                 // tapt seems to be used to compute the video size [http://www.getid3.org/phpBB3/viewtopic.php?t=838]
1352                                                 // * http://lists.apple.com/archives/quicktime-api/2006/Aug/msg00014.html
1353                                                 // * http://handbrake.fr/irclogs/handbrake-dev/handbrake-dev20080128_pg2.html
1354                         case 'ctts'://  STCompositionOffsetAID             - http://developer.apple.com/documentation/QuickTime/Reference/QTRef_Constants/Reference/reference.html
1355                         case 'cslg'://  STCompositionShiftLeastGreatestAID - http://developer.apple.com/documentation/QuickTime/Reference/QTRef_Constants/Reference/reference.html
1356                         case 'sdtp'://  STSampleDependencyAID              - http://developer.apple.com/documentation/QuickTime/Reference/QTRef_Constants/Reference/reference.html
1357                         case 'stps'://  STPartialSyncSampleAID             - http://developer.apple.com/documentation/QuickTime/Reference/QTRef_Constants/Reference/reference.html
1358                                 //$atom_structure['data'] = $atom_data;
1359                                 break;
1360
1361                         case "\xA9".'xyz':  // GPS latitude+longitude+altitude
1362                                 $atom_structure['data'] = $atom_data;
1363                                 if (preg_match('#([\\+\\-][0-9\\.]+)([\\+\\-][0-9\\.]+)([\\+\\-][0-9\\.]+)?/$#i', $atom_data, $matches)) {
1364                                         @list($all, $latitude, $longitude, $altitude) = $matches;
1365                                         $info['quicktime']['comments']['gps_latitude'][]  = floatval($latitude);
1366                                         $info['quicktime']['comments']['gps_longitude'][] = floatval($longitude);
1367                                         if (!empty($altitude)) {
1368                                                 $info['quicktime']['comments']['gps_altitude'][] = floatval($altitude);
1369                                         }
1370                                 } else {
1371                                         $info['warning'][] = 'QuickTime atom "©xyz" data does not match expected data pattern at offset '.$baseoffset.'. Please report as getID3() bug.';
1372                                 }
1373                                 break;
1374
1375                         case 'NCDT':
1376                                 // http://www.sno.phy.queensu.ca/~phil/exiftool/TagNames/Nikon.html
1377                                 // Nikon-specific QuickTime tags found in the NCDT atom of MOV videos from some Nikon cameras such as the Coolpix S8000 and D5100
1378                                 $atom_structure['subatoms'] = $this->QuicktimeParseContainerAtom($atom_data, $baseoffset + 4, $atomHierarchy, $ParseAllPossibleAtoms);
1379                                 break;
1380                         case 'NCTH': // Nikon Camera THumbnail image
1381                         case 'NCVW': // Nikon Camera preVieW image
1382                                 // http://www.sno.phy.queensu.ca/~phil/exiftool/TagNames/Nikon.html
1383                                 if (preg_match('/^\xFF\xD8\xFF/', $atom_data)) {
1384                                         $atom_structure['data'] = $atom_data;
1385                                         $atom_structure['image_mime'] = 'image/jpeg';
1386                                         $atom_structure['description'] = (($atomname == 'NCTH') ? 'Nikon Camera Thumbnail Image' : (($atomname == 'NCVW') ? 'Nikon Camera Preview Image' : 'Nikon preview image'));
1387                                         $info['quicktime']['comments']['picture'][] = array('image_mime'=>$atom_structure['image_mime'], 'data'=>$atom_data, 'description'=>$atom_structure['description']);
1388                                 }
1389                                 break;
1390                         case 'NCTG': // Nikon - http://www.sno.phy.queensu.ca/~phil/exiftool/TagNames/Nikon.html#NCTG
1391                                 $atom_structure['data'] = $this->QuicktimeParseNikonNCTG($atom_data);
1392                                 break;
1393                         case 'NCHD': // Nikon:MakerNoteVersion  - http://www.sno.phy.queensu.ca/~phil/exiftool/TagNames/Nikon.html
1394                         case 'NCDB': // Nikon                   - http://www.sno.phy.queensu.ca/~phil/exiftool/TagNames/Nikon.html
1395                         case 'CNCV': // Canon:CompressorVersion - http://www.sno.phy.queensu.ca/~phil/exiftool/TagNames/Canon.html
1396                                 $atom_structure['data'] = $atom_data;
1397                                 break;
1398
1399                         case "\x00\x00\x00\x00":
1400                         case 'meta': // METAdata atom
1401                                 // some kind of metacontainer, may contain a big data dump such as:
1402                                 // mdta keys \005 mdtacom.apple.quicktime.make (mdtacom.apple.quicktime.creationdate ,mdtacom.apple.quicktime.location.ISO6709 $mdtacom.apple.quicktime.software !mdtacom.apple.quicktime.model ilst \01D \001 \015data \001DE\010Apple 0 \002 (data \001DE\0102011-05-11T17:54:04+0200 2 \003 *data \001DE\010+52.4936+013.3897+040.247/ \01D \004 \015data \001DE\0104.3.1 \005 \018data \001DE\010iPhone 4
1403                                 // http://www.geocities.com/xhelmboyx/quicktime/formats/qti-layout.txt
1404
1405                     $atom_structure['version']   =          getid3_lib::BigEndian2Int(substr($atom_data, 0, 1));
1406                     $atom_structure['flags_raw'] =          getid3_lib::BigEndian2Int(substr($atom_data, 1, 3));
1407                     $atom_structure['subatoms']  = $this->QuicktimeParseContainerAtom(substr($atom_data, 4), $baseoffset + 8, $atomHierarchy, $ParseAllPossibleAtoms);
1408                                 //$atom_structure['subatoms']  = $this->QuicktimeParseContainerAtom($atom_data, $baseoffset + 8, $atomHierarchy, $ParseAllPossibleAtoms);
1409                                 break;
1410
1411                         case 'data': // metaDATA atom
1412                                 // seems to be 2 bytes language code (ASCII), 2 bytes unknown (set to 0x10B5 in sample I have), remainder is useful data
1413                                 $atom_structure['language'] =                           substr($atom_data, 4 + 0, 2);
1414                                 $atom_structure['unknown']  = getid3_lib::BigEndian2Int(substr($atom_data, 4 + 2, 2));
1415                                 $atom_structure['data']     =                           substr($atom_data, 4 + 4);
1416                                 break;
1417
1418                         default:
1419                                 $info['warning'][] = 'Unknown QuickTime atom type: "'.preg_replace('#[^a-zA-Z0-9 _\\-]#', '?', $atomname).'" ('.trim(getid3_lib::PrintHexBytes($atomname)).') at offset '.$baseoffset;
1420                                 $atom_structure['data'] = $atom_data;
1421                                 break;
1422                 }
1423                 array_pop($atomHierarchy);
1424                 return $atom_structure;
1425         }
1426
1427         public function QuicktimeParseContainerAtom($atom_data, $baseoffset, &$atomHierarchy, $ParseAllPossibleAtoms) {
1428 //echo 'QuicktimeParseContainerAtom('.substr($atom_data, 4, 4).') @ '.$baseoffset.'<br><br>';
1429                 $atom_structure  = false;
1430                 $subatomoffset  = 0;
1431                 $subatomcounter = 0;
1432                 if ((strlen($atom_data) == 4) && (getid3_lib::BigEndian2Int($atom_data) == 0x00000000)) {
1433                         return false;
1434                 }
1435                 while ($subatomoffset < strlen($atom_data)) {
1436                         $subatomsize = getid3_lib::BigEndian2Int(substr($atom_data, $subatomoffset + 0, 4));
1437                         $subatomname =                           substr($atom_data, $subatomoffset + 4, 4);
1438                         $subatomdata =                           substr($atom_data, $subatomoffset + 8, $subatomsize - 8);
1439                         if ($subatomsize == 0) {
1440                                 // Furthermore, for historical reasons the list of atoms is optionally
1441                                 // terminated by a 32-bit integer set to 0. If you are writing a program
1442                                 // to read user data atoms, you should allow for the terminating 0.
1443                                 return $atom_structure;
1444                         }
1445
1446                         $atom_structure[$subatomcounter] = $this->QuicktimeParseAtom($subatomname, $subatomsize, $subatomdata, $baseoffset + $subatomoffset, $atomHierarchy, $ParseAllPossibleAtoms);
1447
1448                         $subatomoffset += $subatomsize;
1449                         $subatomcounter++;
1450                 }
1451                 return $atom_structure;
1452         }
1453
1454
1455         public function quicktime_read_mp4_descr_length($data, &$offset) {
1456                 // http://libquicktime.sourcearchive.com/documentation/2:1.0.2plus-pdebian-2build1/esds_8c-source.html
1457                 $num_bytes = 0;
1458                 $length    = 0;
1459                 do {
1460                         $b = ord(substr($data, $offset++, 1));
1461                         $length = ($length << 7) | ($b & 0x7F);
1462                 } while (($b & 0x80) && ($num_bytes++ < 4));
1463                 return $length;
1464         }
1465
1466
1467         public function QuicktimeLanguageLookup($languageid) {
1468                 // http://developer.apple.com/library/mac/#documentation/QuickTime/QTFF/QTFFChap4/qtff4.html#//apple_ref/doc/uid/TP40000939-CH206-34353
1469                 static $QuicktimeLanguageLookup = array();
1470                 if (empty($QuicktimeLanguageLookup)) {
1471                         $QuicktimeLanguageLookup[0]     = 'English';
1472                         $QuicktimeLanguageLookup[1]     = 'French';
1473                         $QuicktimeLanguageLookup[2]     = 'German';
1474                         $QuicktimeLanguageLookup[3]     = 'Italian';
1475                         $QuicktimeLanguageLookup[4]     = 'Dutch';
1476                         $QuicktimeLanguageLookup[5]     = 'Swedish';
1477                         $QuicktimeLanguageLookup[6]     = 'Spanish';
1478                         $QuicktimeLanguageLookup[7]     = 'Danish';
1479                         $QuicktimeLanguageLookup[8]     = 'Portuguese';
1480                         $QuicktimeLanguageLookup[9]     = 'Norwegian';
1481                         $QuicktimeLanguageLookup[10]    = 'Hebrew';
1482                         $QuicktimeLanguageLookup[11]    = 'Japanese';
1483                         $QuicktimeLanguageLookup[12]    = 'Arabic';
1484                         $QuicktimeLanguageLookup[13]    = 'Finnish';
1485                         $QuicktimeLanguageLookup[14]    = 'Greek';
1486                         $QuicktimeLanguageLookup[15]    = 'Icelandic';
1487                         $QuicktimeLanguageLookup[16]    = 'Maltese';
1488                         $QuicktimeLanguageLookup[17]    = 'Turkish';
1489                         $QuicktimeLanguageLookup[18]    = 'Croatian';
1490                         $QuicktimeLanguageLookup[19]    = 'Chinese (Traditional)';
1491                         $QuicktimeLanguageLookup[20]    = 'Urdu';
1492                         $QuicktimeLanguageLookup[21]    = 'Hindi';
1493                         $QuicktimeLanguageLookup[22]    = 'Thai';
1494                         $QuicktimeLanguageLookup[23]    = 'Korean';
1495                         $QuicktimeLanguageLookup[24]    = 'Lithuanian';
1496                         $QuicktimeLanguageLookup[25]    = 'Polish';
1497                         $QuicktimeLanguageLookup[26]    = 'Hungarian';
1498                         $QuicktimeLanguageLookup[27]    = 'Estonian';
1499                         $QuicktimeLanguageLookup[28]    = 'Lettish';
1500                         $QuicktimeLanguageLookup[28]    = 'Latvian';
1501                         $QuicktimeLanguageLookup[29]    = 'Saamisk';
1502                         $QuicktimeLanguageLookup[29]    = 'Lappish';
1503                         $QuicktimeLanguageLookup[30]    = 'Faeroese';
1504                         $QuicktimeLanguageLookup[31]    = 'Farsi';
1505                         $QuicktimeLanguageLookup[31]    = 'Persian';
1506                         $QuicktimeLanguageLookup[32]    = 'Russian';
1507                         $QuicktimeLanguageLookup[33]    = 'Chinese (Simplified)';
1508                         $QuicktimeLanguageLookup[34]    = 'Flemish';
1509                         $QuicktimeLanguageLookup[35]    = 'Irish';
1510                         $QuicktimeLanguageLookup[36]    = 'Albanian';
1511                         $QuicktimeLanguageLookup[37]    = 'Romanian';
1512                         $QuicktimeLanguageLookup[38]    = 'Czech';
1513                         $QuicktimeLanguageLookup[39]    = 'Slovak';
1514                         $QuicktimeLanguageLookup[40]    = 'Slovenian';
1515                         $QuicktimeLanguageLookup[41]    = 'Yiddish';
1516                         $QuicktimeLanguageLookup[42]    = 'Serbian';
1517                         $QuicktimeLanguageLookup[43]    = 'Macedonian';
1518                         $QuicktimeLanguageLookup[44]    = 'Bulgarian';
1519                         $QuicktimeLanguageLookup[45]    = 'Ukrainian';
1520                         $QuicktimeLanguageLookup[46]    = 'Byelorussian';
1521                         $QuicktimeLanguageLookup[47]    = 'Uzbek';
1522                         $QuicktimeLanguageLookup[48]    = 'Kazakh';
1523                         $QuicktimeLanguageLookup[49]    = 'Azerbaijani';
1524                         $QuicktimeLanguageLookup[50]    = 'AzerbaijanAr';
1525                         $QuicktimeLanguageLookup[51]    = 'Armenian';
1526                         $QuicktimeLanguageLookup[52]    = 'Georgian';
1527                         $QuicktimeLanguageLookup[53]    = 'Moldavian';
1528                         $QuicktimeLanguageLookup[54]    = 'Kirghiz';
1529                         $QuicktimeLanguageLookup[55]    = 'Tajiki';
1530                         $QuicktimeLanguageLookup[56]    = 'Turkmen';
1531                         $QuicktimeLanguageLookup[57]    = 'Mongolian';
1532                         $QuicktimeLanguageLookup[58]    = 'MongolianCyr';
1533                         $QuicktimeLanguageLookup[59]    = 'Pashto';
1534                         $QuicktimeLanguageLookup[60]    = 'Kurdish';
1535                         $QuicktimeLanguageLookup[61]    = 'Kashmiri';
1536                         $QuicktimeLanguageLookup[62]    = 'Sindhi';
1537                         $QuicktimeLanguageLookup[63]    = 'Tibetan';
1538                         $QuicktimeLanguageLookup[64]    = 'Nepali';
1539                         $QuicktimeLanguageLookup[65]    = 'Sanskrit';
1540                         $QuicktimeLanguageLookup[66]    = 'Marathi';
1541                         $QuicktimeLanguageLookup[67]    = 'Bengali';
1542                         $QuicktimeLanguageLookup[68]    = 'Assamese';
1543                         $QuicktimeLanguageLookup[69]    = 'Gujarati';
1544                         $QuicktimeLanguageLookup[70]    = 'Punjabi';
1545                         $QuicktimeLanguageLookup[71]    = 'Oriya';
1546                         $QuicktimeLanguageLookup[72]    = 'Malayalam';
1547                         $QuicktimeLanguageLookup[73]    = 'Kannada';
1548                         $QuicktimeLanguageLookup[74]    = 'Tamil';
1549                         $QuicktimeLanguageLookup[75]    = 'Telugu';
1550                         $QuicktimeLanguageLookup[76]    = 'Sinhalese';
1551                         $QuicktimeLanguageLookup[77]    = 'Burmese';
1552                         $QuicktimeLanguageLookup[78]    = 'Khmer';
1553                         $QuicktimeLanguageLookup[79]    = 'Lao';
1554                         $QuicktimeLanguageLookup[80]    = 'Vietnamese';
1555                         $QuicktimeLanguageLookup[81]    = 'Indonesian';
1556                         $QuicktimeLanguageLookup[82]    = 'Tagalog';
1557                         $QuicktimeLanguageLookup[83]    = 'MalayRoman';
1558                         $QuicktimeLanguageLookup[84]    = 'MalayArabic';
1559                         $QuicktimeLanguageLookup[85]    = 'Amharic';
1560                         $QuicktimeLanguageLookup[86]    = 'Tigrinya';
1561                         $QuicktimeLanguageLookup[87]    = 'Galla';
1562                         $QuicktimeLanguageLookup[87]    = 'Oromo';
1563                         $QuicktimeLanguageLookup[88]    = 'Somali';
1564                         $QuicktimeLanguageLookup[89]    = 'Swahili';
1565                         $QuicktimeLanguageLookup[90]    = 'Ruanda';
1566                         $QuicktimeLanguageLookup[91]    = 'Rundi';
1567                         $QuicktimeLanguageLookup[92]    = 'Chewa';
1568                         $QuicktimeLanguageLookup[93]    = 'Malagasy';
1569                         $QuicktimeLanguageLookup[94]    = 'Esperanto';
1570                         $QuicktimeLanguageLookup[128]   = 'Welsh';
1571                         $QuicktimeLanguageLookup[129]   = 'Basque';
1572                         $QuicktimeLanguageLookup[130]   = 'Catalan';
1573                         $QuicktimeLanguageLookup[131]   = 'Latin';
1574                         $QuicktimeLanguageLookup[132]   = 'Quechua';
1575                         $QuicktimeLanguageLookup[133]   = 'Guarani';
1576                         $QuicktimeLanguageLookup[134]   = 'Aymara';
1577                         $QuicktimeLanguageLookup[135]   = 'Tatar';
1578                         $QuicktimeLanguageLookup[136]   = 'Uighur';
1579                         $QuicktimeLanguageLookup[137]   = 'Dzongkha';
1580                         $QuicktimeLanguageLookup[138]   = 'JavaneseRom';
1581                         $QuicktimeLanguageLookup[32767] = 'Unspecified';
1582                 }
1583                 if (($languageid > 138) && ($languageid < 32767)) {
1584                         /*
1585                         ISO Language Codes - http://www.loc.gov/standards/iso639-2/php/code_list.php
1586                         Because the language codes specified by ISO 639-2/T are three characters long, they must be packed to fit into a 16-bit field.
1587                         The packing algorithm must map each of the three characters, which are always lowercase, into a 5-bit integer and then concatenate
1588                         these integers into the least significant 15 bits of a 16-bit integer, leaving the 16-bit integer's most significant bit set to zero.
1589
1590                         One algorithm for performing this packing is to treat each ISO character as a 16-bit integer. Subtract 0x60 from the first character
1591                         and multiply by 2^10 (0x400), subtract 0x60 from the second character and multiply by 2^5 (0x20), subtract 0x60 from the third character,
1592                         and add the three 16-bit values. This will result in a single 16-bit value with the three codes correctly packed into the 15 least
1593                         significant bits and the most significant bit set to zero.
1594                         */
1595                         $iso_language_id  = '';
1596                         $iso_language_id .= chr((($languageid & 0x7C00) >> 10) + 0x60);
1597                         $iso_language_id .= chr((($languageid & 0x03E0) >>  5) + 0x60);
1598                         $iso_language_id .= chr((($languageid & 0x001F) >>  0) + 0x60);
1599                         $QuicktimeLanguageLookup[$languageid] = getid3_id3v2::LanguageLookup($iso_language_id);
1600                 }
1601                 return (isset($QuicktimeLanguageLookup[$languageid]) ? $QuicktimeLanguageLookup[$languageid] : 'invalid');
1602         }
1603
1604         public function QuicktimeVideoCodecLookup($codecid) {
1605                 static $QuicktimeVideoCodecLookup = array();
1606                 if (empty($QuicktimeVideoCodecLookup)) {
1607                         $QuicktimeVideoCodecLookup['.SGI'] = 'SGI';
1608                         $QuicktimeVideoCodecLookup['3IV1'] = '3ivx MPEG-4 v1';
1609                         $QuicktimeVideoCodecLookup['3IV2'] = '3ivx MPEG-4 v2';
1610                         $QuicktimeVideoCodecLookup['3IVX'] = '3ivx MPEG-4';
1611                         $QuicktimeVideoCodecLookup['8BPS'] = 'Planar RGB';
1612                         $QuicktimeVideoCodecLookup['avc1'] = 'H.264/MPEG-4 AVC';
1613                         $QuicktimeVideoCodecLookup['avr '] = 'AVR-JPEG';
1614                         $QuicktimeVideoCodecLookup['b16g'] = '16Gray';
1615                         $QuicktimeVideoCodecLookup['b32a'] = '32AlphaGray';
1616                         $QuicktimeVideoCodecLookup['b48r'] = '48RGB';
1617                         $QuicktimeVideoCodecLookup['b64a'] = '64ARGB';
1618                         $QuicktimeVideoCodecLookup['base'] = 'Base';
1619                         $QuicktimeVideoCodecLookup['clou'] = 'Cloud';
1620                         $QuicktimeVideoCodecLookup['cmyk'] = 'CMYK';
1621                         $QuicktimeVideoCodecLookup['cvid'] = 'Cinepak';
1622                         $QuicktimeVideoCodecLookup['dmb1'] = 'OpenDML JPEG';
1623                         $QuicktimeVideoCodecLookup['dvc '] = 'DVC-NTSC';
1624                         $QuicktimeVideoCodecLookup['dvcp'] = 'DVC-PAL';
1625                         $QuicktimeVideoCodecLookup['dvpn'] = 'DVCPro-NTSC';
1626                         $QuicktimeVideoCodecLookup['dvpp'] = 'DVCPro-PAL';
1627                         $QuicktimeVideoCodecLookup['fire'] = 'Fire';
1628                         $QuicktimeVideoCodecLookup['flic'] = 'FLC';
1629                         $QuicktimeVideoCodecLookup['gif '] = 'GIF';
1630                         $QuicktimeVideoCodecLookup['h261'] = 'H261';
1631                         $QuicktimeVideoCodecLookup['h263'] = 'H263';
1632                         $QuicktimeVideoCodecLookup['IV41'] = 'Indeo4';
1633                         $QuicktimeVideoCodecLookup['jpeg'] = 'JPEG';
1634                         $QuicktimeVideoCodecLookup['kpcd'] = 'PhotoCD';
1635                         $QuicktimeVideoCodecLookup['mjpa'] = 'Motion JPEG-A';
1636                         $QuicktimeVideoCodecLookup['mjpb'] = 'Motion JPEG-B';
1637                         $QuicktimeVideoCodecLookup['msvc'] = 'Microsoft Video1';
1638                         $QuicktimeVideoCodecLookup['myuv'] = 'MPEG YUV420';
1639                         $QuicktimeVideoCodecLookup['path'] = 'Vector';
1640                         $QuicktimeVideoCodecLookup['png '] = 'PNG';
1641                         $QuicktimeVideoCodecLookup['PNTG'] = 'MacPaint';
1642                         $QuicktimeVideoCodecLookup['qdgx'] = 'QuickDrawGX';
1643                         $QuicktimeVideoCodecLookup['qdrw'] = 'QuickDraw';
1644                         $QuicktimeVideoCodecLookup['raw '] = 'RAW';
1645                         $QuicktimeVideoCodecLookup['ripl'] = 'WaterRipple';
1646                         $QuicktimeVideoCodecLookup['rpza'] = 'Video';
1647                         $QuicktimeVideoCodecLookup['smc '] = 'Graphics';
1648                         $QuicktimeVideoCodecLookup['SVQ1'] = 'Sorenson Video 1';
1649                         $QuicktimeVideoCodecLookup['SVQ1'] = 'Sorenson Video 3';
1650                         $QuicktimeVideoCodecLookup['syv9'] = 'Sorenson YUV9';
1651                         $QuicktimeVideoCodecLookup['tga '] = 'Targa';
1652                         $QuicktimeVideoCodecLookup['tiff'] = 'TIFF';
1653                         $QuicktimeVideoCodecLookup['WRAW'] = 'Windows RAW';
1654                         $QuicktimeVideoCodecLookup['WRLE'] = 'BMP';
1655                         $QuicktimeVideoCodecLookup['y420'] = 'YUV420';
1656                         $QuicktimeVideoCodecLookup['yuv2'] = 'ComponentVideo';
1657                         $QuicktimeVideoCodecLookup['yuvs'] = 'ComponentVideoUnsigned';
1658                         $QuicktimeVideoCodecLookup['yuvu'] = 'ComponentVideoSigned';
1659                 }
1660                 return (isset($QuicktimeVideoCodecLookup[$codecid]) ? $QuicktimeVideoCodecLookup[$codecid] : '');
1661         }
1662
1663         public function QuicktimeAudioCodecLookup($codecid) {
1664                 static $QuicktimeAudioCodecLookup = array();
1665                 if (empty($QuicktimeAudioCodecLookup)) {
1666                         $QuicktimeAudioCodecLookup['.mp3']          = 'Fraunhofer MPEG Layer-III alias';
1667                         $QuicktimeAudioCodecLookup['aac ']          = 'ISO/IEC 14496-3 AAC';
1668                         $QuicktimeAudioCodecLookup['agsm']          = 'Apple GSM 10:1';
1669                         $QuicktimeAudioCodecLookup['alac']          = 'Apple Lossless Audio Codec';
1670                         $QuicktimeAudioCodecLookup['alaw']          = 'A-law 2:1';
1671                         $QuicktimeAudioCodecLookup['conv']          = 'Sample Format';
1672                         $QuicktimeAudioCodecLookup['dvca']          = 'DV';
1673                         $QuicktimeAudioCodecLookup['dvi ']          = 'DV 4:1';
1674                         $QuicktimeAudioCodecLookup['eqal']          = 'Frequency Equalizer';
1675                         $QuicktimeAudioCodecLookup['fl32']          = '32-bit Floating Point';
1676                         $QuicktimeAudioCodecLookup['fl64']          = '64-bit Floating Point';
1677                         $QuicktimeAudioCodecLookup['ima4']          = 'Interactive Multimedia Association 4:1';
1678                         $QuicktimeAudioCodecLookup['in24']          = '24-bit Integer';
1679                         $QuicktimeAudioCodecLookup['in32']          = '32-bit Integer';
1680                         $QuicktimeAudioCodecLookup['lpc ']          = 'LPC 23:1';
1681                         $QuicktimeAudioCodecLookup['MAC3']          = 'Macintosh Audio Compression/Expansion (MACE) 3:1';
1682                         $QuicktimeAudioCodecLookup['MAC6']          = 'Macintosh Audio Compression/Expansion (MACE) 6:1';
1683                         $QuicktimeAudioCodecLookup['mixb']          = '8-bit Mixer';
1684                         $QuicktimeAudioCodecLookup['mixw']          = '16-bit Mixer';
1685                         $QuicktimeAudioCodecLookup['mp4a']          = 'ISO/IEC 14496-3 AAC';
1686                         $QuicktimeAudioCodecLookup['MS'."\x00\x02"] = 'Microsoft ADPCM';
1687                         $QuicktimeAudioCodecLookup['MS'."\x00\x11"] = 'DV IMA';
1688                         $QuicktimeAudioCodecLookup['MS'."\x00\x55"] = 'Fraunhofer MPEG Layer III';
1689                         $QuicktimeAudioCodecLookup['NONE']          = 'No Encoding';
1690                         $QuicktimeAudioCodecLookup['Qclp']          = 'Qualcomm PureVoice';
1691                         $QuicktimeAudioCodecLookup['QDM2']          = 'QDesign Music 2';
1692                         $QuicktimeAudioCodecLookup['QDMC']          = 'QDesign Music 1';
1693                         $QuicktimeAudioCodecLookup['ratb']          = '8-bit Rate';
1694                         $QuicktimeAudioCodecLookup['ratw']          = '16-bit Rate';
1695                         $QuicktimeAudioCodecLookup['raw ']          = 'raw PCM';
1696                         $QuicktimeAudioCodecLookup['sour']          = 'Sound Source';
1697                         $QuicktimeAudioCodecLookup['sowt']          = 'signed/two\'s complement (Little Endian)';
1698                         $QuicktimeAudioCodecLookup['str1']          = 'Iomega MPEG layer II';
1699                         $QuicktimeAudioCodecLookup['str2']          = 'Iomega MPEG *layer II';
1700                         $QuicktimeAudioCodecLookup['str3']          = 'Iomega MPEG **layer II';
1701                         $QuicktimeAudioCodecLookup['str4']          = 'Iomega MPEG ***layer II';
1702                         $QuicktimeAudioCodecLookup['twos']          = 'signed/two\'s complement (Big Endian)';
1703                         $QuicktimeAudioCodecLookup['ulaw']          = 'mu-law 2:1';
1704                 }
1705                 return (isset($QuicktimeAudioCodecLookup[$codecid]) ? $QuicktimeAudioCodecLookup[$codecid] : '');
1706         }
1707
1708         public function QuicktimeDCOMLookup($compressionid) {
1709                 static $QuicktimeDCOMLookup = array();
1710                 if (empty($QuicktimeDCOMLookup)) {
1711                         $QuicktimeDCOMLookup['zlib'] = 'ZLib Deflate';
1712                         $QuicktimeDCOMLookup['adec'] = 'Apple Compression';
1713                 }
1714                 return (isset($QuicktimeDCOMLookup[$compressionid]) ? $QuicktimeDCOMLookup[$compressionid] : '');
1715         }
1716
1717         public function QuicktimeColorNameLookup($colordepthid) {
1718                 static $QuicktimeColorNameLookup = array();
1719                 if (empty($QuicktimeColorNameLookup)) {
1720                         $QuicktimeColorNameLookup[1]  = '2-color (monochrome)';
1721                         $QuicktimeColorNameLookup[2]  = '4-color';
1722                         $QuicktimeColorNameLookup[4]  = '16-color';
1723                         $QuicktimeColorNameLookup[8]  = '256-color';
1724                         $QuicktimeColorNameLookup[16] = 'thousands (16-bit color)';
1725                         $QuicktimeColorNameLookup[24] = 'millions (24-bit color)';
1726                         $QuicktimeColorNameLookup[32] = 'millions+ (32-bit color)';
1727                         $QuicktimeColorNameLookup[33] = 'black & white';
1728                         $QuicktimeColorNameLookup[34] = '4-gray';
1729                         $QuicktimeColorNameLookup[36] = '16-gray';
1730                         $QuicktimeColorNameLookup[40] = '256-gray';
1731                 }
1732                 return (isset($QuicktimeColorNameLookup[$colordepthid]) ? $QuicktimeColorNameLookup[$colordepthid] : 'invalid');
1733         }
1734
1735         public function QuicktimeSTIKLookup($stik) {
1736                 static $QuicktimeSTIKLookup = array();
1737                 if (empty($QuicktimeSTIKLookup)) {
1738                         $QuicktimeSTIKLookup[0]  = 'Movie';
1739                         $QuicktimeSTIKLookup[1]  = 'Normal';
1740                         $QuicktimeSTIKLookup[2]  = 'Audiobook';
1741                         $QuicktimeSTIKLookup[5]  = 'Whacked Bookmark';
1742                         $QuicktimeSTIKLookup[6]  = 'Music Video';
1743                         $QuicktimeSTIKLookup[9]  = 'Short Film';
1744                         $QuicktimeSTIKLookup[10] = 'TV Show';
1745                         $QuicktimeSTIKLookup[11] = 'Booklet';
1746                         $QuicktimeSTIKLookup[14] = 'Ringtone';
1747                         $QuicktimeSTIKLookup[21] = 'Podcast';
1748                 }
1749                 return (isset($QuicktimeSTIKLookup[$stik]) ? $QuicktimeSTIKLookup[$stik] : 'invalid');
1750         }
1751
1752         public function QuicktimeIODSaudioProfileName($audio_profile_id) {
1753                 static $QuicktimeIODSaudioProfileNameLookup = array();
1754                 if (empty($QuicktimeIODSaudioProfileNameLookup)) {
1755                         $QuicktimeIODSaudioProfileNameLookup = array(
1756                             0x00 => 'ISO Reserved (0x00)',
1757                             0x01 => 'Main Audio Profile @ Level 1',
1758                             0x02 => 'Main Audio Profile @ Level 2',
1759                             0x03 => 'Main Audio Profile @ Level 3',
1760                             0x04 => 'Main Audio Profile @ Level 4',
1761                             0x05 => 'Scalable Audio Profile @ Level 1',
1762                             0x06 => 'Scalable Audio Profile @ Level 2',
1763                             0x07 => 'Scalable Audio Profile @ Level 3',
1764                             0x08 => 'Scalable Audio Profile @ Level 4',
1765                             0x09 => 'Speech Audio Profile @ Level 1',
1766                             0x0A => 'Speech Audio Profile @ Level 2',
1767                             0x0B => 'Synthetic Audio Profile @ Level 1',
1768                             0x0C => 'Synthetic Audio Profile @ Level 2',
1769                             0x0D => 'Synthetic Audio Profile @ Level 3',
1770                             0x0E => 'High Quality Audio Profile @ Level 1',
1771                             0x0F => 'High Quality Audio Profile @ Level 2',
1772                             0x10 => 'High Quality Audio Profile @ Level 3',
1773                             0x11 => 'High Quality Audio Profile @ Level 4',
1774                             0x12 => 'High Quality Audio Profile @ Level 5',
1775                             0x13 => 'High Quality Audio Profile @ Level 6',
1776                             0x14 => 'High Quality Audio Profile @ Level 7',
1777                             0x15 => 'High Quality Audio Profile @ Level 8',
1778                             0x16 => 'Low Delay Audio Profile @ Level 1',
1779                             0x17 => 'Low Delay Audio Profile @ Level 2',
1780                             0x18 => 'Low Delay Audio Profile @ Level 3',
1781                             0x19 => 'Low Delay Audio Profile @ Level 4',
1782                             0x1A => 'Low Delay Audio Profile @ Level 5',
1783                             0x1B => 'Low Delay Audio Profile @ Level 6',
1784                             0x1C => 'Low Delay Audio Profile @ Level 7',
1785                             0x1D => 'Low Delay Audio Profile @ Level 8',
1786                             0x1E => 'Natural Audio Profile @ Level 1',
1787                             0x1F => 'Natural Audio Profile @ Level 2',
1788                             0x20 => 'Natural Audio Profile @ Level 3',
1789                             0x21 => 'Natural Audio Profile @ Level 4',
1790                             0x22 => 'Mobile Audio Internetworking Profile @ Level 1',
1791                             0x23 => 'Mobile Audio Internetworking Profile @ Level 2',
1792                             0x24 => 'Mobile Audio Internetworking Profile @ Level 3',
1793                             0x25 => 'Mobile Audio Internetworking Profile @ Level 4',
1794                             0x26 => 'Mobile Audio Internetworking Profile @ Level 5',
1795                             0x27 => 'Mobile Audio Internetworking Profile @ Level 6',
1796                             0x28 => 'AAC Profile @ Level 1',
1797                             0x29 => 'AAC Profile @ Level 2',
1798                             0x2A => 'AAC Profile @ Level 4',
1799                             0x2B => 'AAC Profile @ Level 5',
1800                             0x2C => 'High Efficiency AAC Profile @ Level 2',
1801                             0x2D => 'High Efficiency AAC Profile @ Level 3',
1802                             0x2E => 'High Efficiency AAC Profile @ Level 4',
1803                             0x2F => 'High Efficiency AAC Profile @ Level 5',
1804                             0xFE => 'Not part of MPEG-4 audio profiles',
1805                             0xFF => 'No audio capability required',
1806                         );
1807                 }
1808                 return (isset($QuicktimeIODSaudioProfileNameLookup[$audio_profile_id]) ? $QuicktimeIODSaudioProfileNameLookup[$audio_profile_id] : 'ISO Reserved / User Private');
1809         }
1810
1811
1812         public function QuicktimeIODSvideoProfileName($video_profile_id) {
1813                 static $QuicktimeIODSvideoProfileNameLookup = array();
1814                 if (empty($QuicktimeIODSvideoProfileNameLookup)) {
1815                         $QuicktimeIODSvideoProfileNameLookup = array(
1816                                 0x00 => 'Reserved (0x00) Profile',
1817                                 0x01 => 'Simple Profile @ Level 1',
1818                                 0x02 => 'Simple Profile @ Level 2',
1819                                 0x03 => 'Simple Profile @ Level 3',
1820                                 0x08 => 'Simple Profile @ Level 0',
1821                                 0x10 => 'Simple Scalable Profile @ Level 0',
1822                                 0x11 => 'Simple Scalable Profile @ Level 1',
1823                                 0x12 => 'Simple Scalable Profile @ Level 2',
1824                                 0x15 => 'AVC/H264 Profile',
1825                                 0x21 => 'Core Profile @ Level 1',
1826                                 0x22 => 'Core Profile @ Level 2',
1827                                 0x32 => 'Main Profile @ Level 2',
1828                                 0x33 => 'Main Profile @ Level 3',
1829                                 0x34 => 'Main Profile @ Level 4',
1830                                 0x42 => 'N-bit Profile @ Level 2',
1831                                 0x51 => 'Scalable Texture Profile @ Level 1',
1832                                 0x61 => 'Simple Face Animation Profile @ Level 1',
1833                                 0x62 => 'Simple Face Animation Profile @ Level 2',
1834                                 0x63 => 'Simple FBA Profile @ Level 1',
1835                                 0x64 => 'Simple FBA Profile @ Level 2',
1836                                 0x71 => 'Basic Animated Texture Profile @ Level 1',
1837                                 0x72 => 'Basic Animated Texture Profile @ Level 2',
1838                                 0x81 => 'Hybrid Profile @ Level 1',
1839                                 0x82 => 'Hybrid Profile @ Level 2',
1840                                 0x91 => 'Advanced Real Time Simple Profile @ Level 1',
1841                                 0x92 => 'Advanced Real Time Simple Profile @ Level 2',
1842                                 0x93 => 'Advanced Real Time Simple Profile @ Level 3',
1843                                 0x94 => 'Advanced Real Time Simple Profile @ Level 4',
1844                                 0xA1 => 'Core Scalable Profile @ Level1',
1845                                 0xA2 => 'Core Scalable Profile @ Level2',
1846                                 0xA3 => 'Core Scalable Profile @ Level3',
1847                                 0xB1 => 'Advanced Coding Efficiency Profile @ Level 1',
1848                                 0xB2 => 'Advanced Coding Efficiency Profile @ Level 2',
1849                                 0xB3 => 'Advanced Coding Efficiency Profile @ Level 3',
1850                                 0xB4 => 'Advanced Coding Efficiency Profile @ Level 4',
1851                                 0xC1 => 'Advanced Core Profile @ Level 1',
1852                                 0xC2 => 'Advanced Core Profile @ Level 2',
1853                                 0xD1 => 'Advanced Scalable Texture @ Level1',
1854                                 0xD2 => 'Advanced Scalable Texture @ Level2',
1855                                 0xE1 => 'Simple Studio Profile @ Level 1',
1856                                 0xE2 => 'Simple Studio Profile @ Level 2',
1857                                 0xE3 => 'Simple Studio Profile @ Level 3',
1858                                 0xE4 => 'Simple Studio Profile @ Level 4',
1859                                 0xE5 => 'Core Studio Profile @ Level 1',
1860                                 0xE6 => 'Core Studio Profile @ Level 2',
1861                                 0xE7 => 'Core Studio Profile @ Level 3',
1862                                 0xE8 => 'Core Studio Profile @ Level 4',
1863                                 0xF0 => 'Advanced Simple Profile @ Level 0',
1864                                 0xF1 => 'Advanced Simple Profile @ Level 1',
1865                                 0xF2 => 'Advanced Simple Profile @ Level 2',
1866                                 0xF3 => 'Advanced Simple Profile @ Level 3',
1867                                 0xF4 => 'Advanced Simple Profile @ Level 4',
1868                                 0xF5 => 'Advanced Simple Profile @ Level 5',
1869                                 0xF7 => 'Advanced Simple Profile @ Level 3b',
1870                                 0xF8 => 'Fine Granularity Scalable Profile @ Level 0',
1871                                 0xF9 => 'Fine Granularity Scalable Profile @ Level 1',
1872                                 0xFA => 'Fine Granularity Scalable Profile @ Level 2',
1873                                 0xFB => 'Fine Granularity Scalable Profile @ Level 3',
1874                                 0xFC => 'Fine Granularity Scalable Profile @ Level 4',
1875                                 0xFD => 'Fine Granularity Scalable Profile @ Level 5',
1876                                 0xFE => 'Not part of MPEG-4 Visual profiles',
1877                                 0xFF => 'No visual capability required',
1878                         );
1879                 }
1880                 return (isset($QuicktimeIODSvideoProfileNameLookup[$video_profile_id]) ? $QuicktimeIODSvideoProfileNameLookup[$video_profile_id] : 'ISO Reserved Profile');
1881         }
1882
1883
1884         public function QuicktimeContentRatingLookup($rtng) {
1885                 static $QuicktimeContentRatingLookup = array();
1886                 if (empty($QuicktimeContentRatingLookup)) {
1887                         $QuicktimeContentRatingLookup[0]  = 'None';
1888                         $QuicktimeContentRatingLookup[2]  = 'Clean';
1889                         $QuicktimeContentRatingLookup[4]  = 'Explicit';
1890                 }
1891                 return (isset($QuicktimeContentRatingLookup[$rtng]) ? $QuicktimeContentRatingLookup[$rtng] : 'invalid');
1892         }
1893
1894         public function QuicktimeStoreAccountTypeLookup($akid) {
1895                 static $QuicktimeStoreAccountTypeLookup = array();
1896                 if (empty($QuicktimeStoreAccountTypeLookup)) {
1897                         $QuicktimeStoreAccountTypeLookup[0] = 'iTunes';
1898                         $QuicktimeStoreAccountTypeLookup[1] = 'AOL';
1899                 }
1900                 return (isset($QuicktimeStoreAccountTypeLookup[$akid]) ? $QuicktimeStoreAccountTypeLookup[$akid] : 'invalid');
1901         }
1902
1903         public function QuicktimeStoreFrontCodeLookup($sfid) {
1904                 static $QuicktimeStoreFrontCodeLookup = array();
1905                 if (empty($QuicktimeStoreFrontCodeLookup)) {
1906                         $QuicktimeStoreFrontCodeLookup[143460] = 'Australia';
1907                         $QuicktimeStoreFrontCodeLookup[143445] = 'Austria';
1908                         $QuicktimeStoreFrontCodeLookup[143446] = 'Belgium';
1909                         $QuicktimeStoreFrontCodeLookup[143455] = 'Canada';
1910                         $QuicktimeStoreFrontCodeLookup[143458] = 'Denmark';
1911                         $QuicktimeStoreFrontCodeLookup[143447] = 'Finland';
1912                         $QuicktimeStoreFrontCodeLookup[143442] = 'France';
1913                         $QuicktimeStoreFrontCodeLookup[143443] = 'Germany';
1914                         $QuicktimeStoreFrontCodeLookup[143448] = 'Greece';
1915                         $QuicktimeStoreFrontCodeLookup[143449] = 'Ireland';
1916                         $QuicktimeStoreFrontCodeLookup[143450] = 'Italy';
1917                         $QuicktimeStoreFrontCodeLookup[143462] = 'Japan';
1918                         $QuicktimeStoreFrontCodeLookup[143451] = 'Luxembourg';
1919                         $QuicktimeStoreFrontCodeLookup[143452] = 'Netherlands';
1920                         $QuicktimeStoreFrontCodeLookup[143461] = 'New Zealand';
1921                         $QuicktimeStoreFrontCodeLookup[143457] = 'Norway';
1922                         $QuicktimeStoreFrontCodeLookup[143453] = 'Portugal';
1923                         $QuicktimeStoreFrontCodeLookup[143454] = 'Spain';
1924                         $QuicktimeStoreFrontCodeLookup[143456] = 'Sweden';
1925                         $QuicktimeStoreFrontCodeLookup[143459] = 'Switzerland';
1926                         $QuicktimeStoreFrontCodeLookup[143444] = 'United Kingdom';
1927                         $QuicktimeStoreFrontCodeLookup[143441] = 'United States';
1928                 }
1929                 return (isset($QuicktimeStoreFrontCodeLookup[$sfid]) ? $QuicktimeStoreFrontCodeLookup[$sfid] : 'invalid');
1930         }
1931
1932         public function QuicktimeParseNikonNCTG($atom_data) {
1933                 // http://www.sno.phy.queensu.ca/~phil/exiftool/TagNames/Nikon.html#NCTG
1934                 // Nikon-specific QuickTime tags found in the NCDT atom of MOV videos from some Nikon cameras such as the Coolpix S8000 and D5100
1935                 // Data is stored as records of:
1936                 // * 4 bytes record type
1937                 // * 2 bytes size of data field type:
1938                 //     0x0001 = flag   (size field *= 1-byte)
1939                 //     0x0002 = char   (size field *= 1-byte)
1940                 //     0x0003 = DWORD+ (size field *= 2-byte), values are stored CDAB
1941                 //     0x0004 = QWORD+ (size field *= 4-byte), values are stored EFGHABCD
1942                 //     0x0005 = float  (size field *= 8-byte), values are stored aaaabbbb where value is aaaa/bbbb; possibly multiple sets of values appended together
1943                 //     0x0007 = bytes  (size field *= 1-byte), values are stored as ??????
1944                 //     0x0008 = ?????  (size field *= 2-byte), values are stored as ??????
1945                 // * 2 bytes data size field
1946                 // * ? bytes data (string data may be null-padded; datestamp fields are in the format "2011:05:25 20:24:15")
1947                 // all integers are stored BigEndian
1948
1949                 $NCTGtagName = array(
1950                         0x00000001 => 'Make',
1951                         0x00000002 => 'Model',
1952                         0x00000003 => 'Software',
1953                         0x00000011 => 'CreateDate',
1954                         0x00000012 => 'DateTimeOriginal',
1955                         0x00000013 => 'FrameCount',
1956                         0x00000016 => 'FrameRate',
1957                         0x00000022 => 'FrameWidth',
1958                         0x00000023 => 'FrameHeight',
1959                         0x00000032 => 'AudioChannels',
1960                         0x00000033 => 'AudioBitsPerSample',
1961                         0x00000034 => 'AudioSampleRate',
1962                         0x02000001 => 'MakerNoteVersion',
1963                         0x02000005 => 'WhiteBalance',
1964                         0x0200000b => 'WhiteBalanceFineTune',
1965                         0x0200001e => 'ColorSpace',
1966                         0x02000023 => 'PictureControlData',
1967                         0x02000024 => 'WorldTime',
1968                         0x02000032 => 'UnknownInfo',
1969                         0x02000083 => 'LensType',
1970                         0x02000084 => 'Lens',
1971                 );
1972
1973                 $offset = 0;
1974                 $datalength = strlen($atom_data);
1975                 $parsed = array();
1976                 while ($offset < $datalength) {
1977 //echo getid3_lib::PrintHexBytes(substr($atom_data, $offset, 4)).'<br>';
1978                         $record_type       = getid3_lib::BigEndian2Int(substr($atom_data, $offset, 4));  $offset += 4;
1979                         $data_size_type    = getid3_lib::BigEndian2Int(substr($atom_data, $offset, 2));  $offset += 2;
1980                         $data_size         = getid3_lib::BigEndian2Int(substr($atom_data, $offset, 2));  $offset += 2;
1981                         switch ($data_size_type) {
1982                                 case 0x0001: // 0x0001 = flag   (size field *= 1-byte)
1983                                         $data = getid3_lib::BigEndian2Int(substr($atom_data, $offset, $data_size * 1));
1984                                         $offset += ($data_size * 1);
1985                                         break;
1986                                 case 0x0002: // 0x0002 = char   (size field *= 1-byte)
1987                                         $data = substr($atom_data, $offset, $data_size * 1);
1988                                         $offset += ($data_size * 1);
1989                                         $data = rtrim($data, "\x00");
1990                                         break;
1991                                 case 0x0003: // 0x0003 = DWORD+ (size field *= 2-byte), values are stored CDAB
1992                                         $data = '';
1993                                         for ($i = $data_size - 1; $i >= 0; $i--) {
1994                                                 $data .= substr($atom_data, $offset + ($i * 2), 2);
1995                                         }
1996                                         $data = getid3_lib::BigEndian2Int($data);
1997                                         $offset += ($data_size * 2);
1998                                         break;
1999                                 case 0x0004: // 0x0004 = QWORD+ (size field *= 4-byte), values are stored EFGHABCD
2000                                         $data = '';
2001                                         for ($i = $data_size - 1; $i >= 0; $i--) {
2002                                                 $data .= substr($atom_data, $offset + ($i * 4), 4);
2003                                         }
2004                                         $data = getid3_lib::BigEndian2Int($data);
2005                                         $offset += ($data_size * 4);
2006                                         break;
2007                                 case 0x0005: // 0x0005 = float  (size field *= 8-byte), values are stored aaaabbbb where value is aaaa/bbbb; possibly multiple sets of values appended together
2008                                         $data = array();
2009                                         for ($i = 0; $i < $data_size; $i++) {
2010                                                 $numerator    = getid3_lib::BigEndian2Int(substr($atom_data, $offset + ($i * 8) + 0, 4));
2011                                                 $denomninator = getid3_lib::BigEndian2Int(substr($atom_data, $offset + ($i * 8) + 4, 4));
2012                                                 if ($denomninator == 0) {
2013                                                         $data[$i] = false;
2014                                                 } else {
2015                                                         $data[$i] = (double) $numerator / $denomninator;
2016                                                 }
2017                                         }
2018                                         $offset += (8 * $data_size);
2019                                         if (count($data) == 1) {
2020                                                 $data = $data[0];
2021                                         }
2022                                         break;
2023                                 case 0x0007: // 0x0007 = bytes  (size field *= 1-byte), values are stored as ??????
2024                                         $data = substr($atom_data, $offset, $data_size * 1);
2025                                         $offset += ($data_size * 1);
2026                                         break;
2027                                 case 0x0008: // 0x0008 = ?????  (size field *= 2-byte), values are stored as ??????
2028                                         $data = substr($atom_data, $offset, $data_size * 2);
2029                                         $offset += ($data_size * 2);
2030                                         break;
2031                                 default:
2032 echo 'QuicktimeParseNikonNCTG()::unknown $data_size_type: '.$data_size_type.'<br>';
2033                                         break 2;
2034                         }
2035
2036                         switch ($record_type) {
2037                                 case 0x00000011: // CreateDate
2038                                 case 0x00000012: // DateTimeOriginal
2039                                         $data = strtotime($data);
2040                                         break;
2041                                 case 0x0200001e: // ColorSpace
2042                                         switch ($data) {
2043                                                 case 1:
2044                                                         $data = 'sRGB';
2045                                                         break;
2046                                                 case 2:
2047                                                         $data = 'Adobe RGB';
2048                                                         break;
2049                                         }
2050                                         break;
2051                                 case 0x02000023: // PictureControlData
2052                                         $PictureControlAdjust = array(0=>'default', 1=>'quick', 2=>'full');
2053                                         $FilterEffect = array(0x80=>'off', 0x81=>'yellow', 0x82=>'orange',    0x83=>'red', 0x84=>'green',  0xff=>'n/a');
2054                                         $ToningEffect = array(0x80=>'b&w', 0x81=>'sepia',  0x82=>'cyanotype', 0x83=>'red', 0x84=>'yellow', 0x85=>'green', 0x86=>'blue-green', 0x87=>'blue', 0x88=>'purple-blue', 0x89=>'red-purple', 0xff=>'n/a');
2055                                         $data = array(
2056                                                 'PictureControlVersion'     =>                           substr($data,  0,  4),
2057                                                 'PictureControlName'        =>                     rtrim(substr($data,  4, 20), "\x00"),
2058                                                 'PictureControlBase'        =>                     rtrim(substr($data, 24, 20), "\x00"),
2059                                                 //'?'                       =>                           substr($data, 44,  4),
2060                                                 'PictureControlAdjust'      => $PictureControlAdjust[ord(substr($data, 48,  1))],
2061                                                 'PictureControlQuickAdjust' =>                       ord(substr($data, 49,  1)),
2062                                                 'Sharpness'                 =>                       ord(substr($data, 50,  1)),
2063                                                 'Contrast'                  =>                       ord(substr($data, 51,  1)),
2064                                                 'Brightness'                =>                       ord(substr($data, 52,  1)),
2065                                                 'Saturation'                =>                       ord(substr($data, 53,  1)),
2066                                                 'HueAdjustment'             =>                       ord(substr($data, 54,  1)),
2067                                                 'FilterEffect'              =>         $FilterEffect[ord(substr($data, 55,  1))],
2068                                                 'ToningEffect'              =>         $ToningEffect[ord(substr($data, 56,  1))],
2069                                                 'ToningSaturation'          =>                       ord(substr($data, 57,  1)),
2070                                         );
2071                                         break;
2072                                 case 0x02000024: // WorldTime
2073                                         // http://www.sno.phy.queensu.ca/~phil/exiftool/TagNames/Nikon.html#WorldTime
2074                                         // timezone is stored as offset from GMT in minutes
2075                                         $timezone = getid3_lib::BigEndian2Int(substr($data, 0, 2));
2076                                         if ($timezone & 0x8000) {
2077                                                 $timezone = 0 - (0x10000 - $timezone);
2078                                         }
2079                                         $timezone /= 60;
2080
2081                                         $dst = (bool) getid3_lib::BigEndian2Int(substr($data, 2, 1));
2082                                         switch (getid3_lib::BigEndian2Int(substr($data, 3, 1))) {
2083                                                 case 2:
2084                                                         $datedisplayformat = 'D/M/Y'; break;
2085                                                 case 1:
2086                                                         $datedisplayformat = 'M/D/Y'; break;
2087                                                 case 0:
2088                                                 default:
2089                                                         $datedisplayformat = 'Y/M/D'; break;
2090                                         }
2091
2092                                         $data = array('timezone'=>floatval($timezone), 'dst'=>$dst, 'display'=>$datedisplayformat);
2093                                         break;
2094                                 case 0x02000083: // LensType
2095                                         $data = array(
2096                                                 //'_'  => $data,
2097                                                 'mf' => (bool) ($data & 0x01),
2098                                                 'd'  => (bool) ($data & 0x02),
2099                                                 'g'  => (bool) ($data & 0x04),
2100                                                 'vr' => (bool) ($data & 0x08),
2101                                         );
2102                                         break;
2103                         }
2104                         $tag_name = (isset($NCTGtagName[$record_type]) ? $NCTGtagName[$record_type] : '0x'.str_pad(dechex($record_type), 8, '0', STR_PAD_LEFT));
2105                         $parsed[$tag_name] = $data;
2106                 }
2107                 return $parsed;
2108         }
2109
2110
2111         public function CopyToAppropriateCommentsSection($keyname, $data, $boxname='') {
2112                 static $handyatomtranslatorarray = array();
2113                 if (empty($handyatomtranslatorarray)) {
2114                         $handyatomtranslatorarray["\xA9".'cpy'] = 'copyright';
2115                         $handyatomtranslatorarray["\xA9".'day'] = 'creation_date';    // iTunes 4.0
2116                         $handyatomtranslatorarray["\xA9".'dir'] = 'director';
2117                         $handyatomtranslatorarray["\xA9".'ed1'] = 'edit1';
2118                         $handyatomtranslatorarray["\xA9".'ed2'] = 'edit2';
2119                         $handyatomtranslatorarray["\xA9".'ed3'] = 'edit3';
2120                         $handyatomtranslatorarray["\xA9".'ed4'] = 'edit4';
2121                         $handyatomtranslatorarray["\xA9".'ed5'] = 'edit5';
2122                         $handyatomtranslatorarray["\xA9".'ed6'] = 'edit6';
2123                         $handyatomtranslatorarray["\xA9".'ed7'] = 'edit7';
2124                         $handyatomtranslatorarray["\xA9".'ed8'] = 'edit8';
2125                         $handyatomtranslatorarray["\xA9".'ed9'] = 'edit9';
2126                         $handyatomtranslatorarray["\xA9".'fmt'] = 'format';
2127                         $handyatomtranslatorarray["\xA9".'inf'] = 'information';
2128                         $handyatomtranslatorarray["\xA9".'prd'] = 'producer';
2129                         $handyatomtranslatorarray["\xA9".'prf'] = 'performers';
2130                         $handyatomtranslatorarray["\xA9".'req'] = 'system_requirements';
2131                         $handyatomtranslatorarray["\xA9".'src'] = 'source_credit';
2132                         $handyatomtranslatorarray["\xA9".'wrt'] = 'writer';
2133
2134                         // http://www.geocities.com/xhelmboyx/quicktime/formats/qtm-layout.txt
2135                         $handyatomtranslatorarray["\xA9".'nam'] = 'title';           // iTunes 4.0
2136                         $handyatomtranslatorarray["\xA9".'cmt'] = 'comment';         // iTunes 4.0
2137                         $handyatomtranslatorarray["\xA9".'wrn'] = 'warning';
2138                         $handyatomtranslatorarray["\xA9".'hst'] = 'host_computer';
2139                         $handyatomtranslatorarray["\xA9".'mak'] = 'make';
2140                         $handyatomtranslatorarray["\xA9".'mod'] = 'model';
2141                         $handyatomtranslatorarray["\xA9".'PRD'] = 'product';
2142                         $handyatomtranslatorarray["\xA9".'swr'] = 'software';
2143                         $handyatomtranslatorarray["\xA9".'aut'] = 'author';
2144                         $handyatomtranslatorarray["\xA9".'ART'] = 'artist';
2145                         $handyatomtranslatorarray["\xA9".'trk'] = 'track';
2146                         $handyatomtranslatorarray["\xA9".'alb'] = 'album';           // iTunes 4.0
2147                         $handyatomtranslatorarray["\xA9".'com'] = 'comment';
2148                         $handyatomtranslatorarray["\xA9".'gen'] = 'genre';           // iTunes 4.0
2149                         $handyatomtranslatorarray["\xA9".'ope'] = 'composer';
2150                         $handyatomtranslatorarray["\xA9".'url'] = 'url';
2151                         $handyatomtranslatorarray["\xA9".'enc'] = 'encoder';
2152
2153                         // http://atomicparsley.sourceforge.net/mpeg-4files.html
2154                         $handyatomtranslatorarray["\xA9".'art'] = 'artist';           // iTunes 4.0
2155                         $handyatomtranslatorarray['aART'] = 'album_artist';
2156                         $handyatomtranslatorarray['trkn'] = 'track_number';     // iTunes 4.0
2157                         $handyatomtranslatorarray['disk'] = 'disc_number';      // iTunes 4.0
2158                         $handyatomtranslatorarray['gnre'] = 'genre';            // iTunes 4.0
2159                         $handyatomtranslatorarray["\xA9".'too'] = 'encoder';          // iTunes 4.0
2160                         $handyatomtranslatorarray['tmpo'] = 'bpm';              // iTunes 4.0
2161                         $handyatomtranslatorarray['cprt'] = 'copyright';        // iTunes 4.0?
2162                         $handyatomtranslatorarray['cpil'] = 'compilation';      // iTunes 4.0
2163                         $handyatomtranslatorarray['covr'] = 'picture';          // iTunes 4.0
2164                         $handyatomtranslatorarray['rtng'] = 'rating';           // iTunes 4.0
2165                         $handyatomtranslatorarray["\xA9".'grp'] = 'grouping';         // iTunes 4.2
2166                         $handyatomtranslatorarray['stik'] = 'stik';             // iTunes 4.9
2167                         $handyatomtranslatorarray['pcst'] = 'podcast';          // iTunes 4.9
2168                         $handyatomtranslatorarray['catg'] = 'category';         // iTunes 4.9
2169                         $handyatomtranslatorarray['keyw'] = 'keyword';          // iTunes 4.9
2170                         $handyatomtranslatorarray['purl'] = 'podcast_url';      // iTunes 4.9
2171                         $handyatomtranslatorarray['egid'] = 'episode_guid';     // iTunes 4.9
2172                         $handyatomtranslatorarray['desc'] = 'description';      // iTunes 5.0
2173                         $handyatomtranslatorarray["\xA9".'lyr'] = 'lyrics';           // iTunes 5.0
2174                         $handyatomtranslatorarray['tvnn'] = 'tv_network_name';  // iTunes 6.0
2175                         $handyatomtranslatorarray['tvsh'] = 'tv_show_name';     // iTunes 6.0
2176                         $handyatomtranslatorarray['tvsn'] = 'tv_season';        // iTunes 6.0
2177                         $handyatomtranslatorarray['tves'] = 'tv_episode';       // iTunes 6.0
2178                         $handyatomtranslatorarray['purd'] = 'purchase_date';    // iTunes 6.0.2
2179                         $handyatomtranslatorarray['pgap'] = 'gapless_playback'; // iTunes 7.0
2180
2181                         // http://www.geocities.com/xhelmboyx/quicktime/formats/mp4-layout.txt
2182
2183
2184
2185                         // boxnames:
2186                         /*
2187                         $handyatomtranslatorarray['iTunSMPB']                    = 'iTunSMPB';
2188                         $handyatomtranslatorarray['iTunNORM']                    = 'iTunNORM';
2189                         $handyatomtranslatorarray['Encoding Params']             = 'Encoding Params';
2190                         $handyatomtranslatorarray['replaygain_track_gain']       = 'replaygain_track_gain';
2191                         $handyatomtranslatorarray['replaygain_track_peak']       = 'replaygain_track_peak';
2192                         $handyatomtranslatorarray['replaygain_track_minmax']     = 'replaygain_track_minmax';
2193                         $handyatomtranslatorarray['MusicIP PUID']                = 'MusicIP PUID';
2194                         $handyatomtranslatorarray['MusicBrainz Artist Id']       = 'MusicBrainz Artist Id';
2195                         $handyatomtranslatorarray['MusicBrainz Album Id']        = 'MusicBrainz Album Id';
2196                         $handyatomtranslatorarray['MusicBrainz Album Artist Id'] = 'MusicBrainz Album Artist Id';
2197                         $handyatomtranslatorarray['MusicBrainz Track Id']        = 'MusicBrainz Track Id';
2198                         $handyatomtranslatorarray['MusicBrainz Disc Id']         = 'MusicBrainz Disc Id';
2199
2200                         // http://age.hobba.nl/audio/tag_frame_reference.html
2201                         $handyatomtranslatorarray['PLAY_COUNTER']                = 'play_counter'; // Foobar2000 - http://www.getid3.org/phpBB3/viewtopic.php?t=1355
2202                         $handyatomtranslatorarray['MEDIATYPE']                   = 'mediatype';    // Foobar2000 - http://www.getid3.org/phpBB3/viewtopic.php?t=1355
2203                         */
2204                 }
2205                 $info = &$this->getid3->info;
2206                 $comment_key = '';
2207                 if ($boxname && ($boxname != $keyname)) {
2208                         $comment_key = (isset($handyatomtranslatorarray[$boxname]) ? $handyatomtranslatorarray[$boxname] : $boxname);
2209                 } elseif (isset($handyatomtranslatorarray[$keyname])) {
2210                         $comment_key = $handyatomtranslatorarray[$keyname];
2211                 }
2212                 if ($comment_key) {
2213                         if ($comment_key == 'picture') {
2214                                 if (!is_array($data)) {
2215                                         $image_mime = '';
2216                                         if (preg_match('#^\x89\x50\x4E\x47\x0D\x0A\x1A\x0A#', $data)) {
2217                                                 $image_mime = 'image/png';
2218                                         } elseif (preg_match('#^\xFF\xD8\xFF#', $data)) {
2219                                                 $image_mime = 'image/jpeg';
2220                                         } elseif (preg_match('#^GIF#', $data)) {
2221                                                 $image_mime = 'image/gif';
2222                                         } elseif (preg_match('#^BM#', $data)) {
2223                                                 $image_mime = 'image/bmp';
2224                                         }
2225                                         $data = array('data'=>$data, 'image_mime'=>$image_mime);
2226                                 }
2227         &nbs