1<?php
2
3/////////////////////////////////////////////////////////////////
4/// getID3() by James Heinrich <info@getid3.org>               //
5//  available at https://github.com/JamesHeinrich/getID3       //
6//            or https://www.getid3.org                        //
7//            or http://getid3.sourceforge.net                 //
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
18if (!defined('GETID3_INCLUDEPATH')) { // prevent path-exposing attacks that access modules directly on public webservers
19	exit;
20}
21getid3_lib::IncludeDependency(GETID3_INCLUDEPATH.'module.audio.mp3.php', __FILE__, true);
22getid3_lib::IncludeDependency(GETID3_INCLUDEPATH.'module.tag.id3v2.php', __FILE__, true); // needed for ISO 639-2 language code lookup
23
24class getid3_quicktime extends getid3_handler
25{
26
27	public $ReturnAtomData        = true;
28	public $ParseAllPossibleAtoms = false;
29
30	/**
31	 * @return bool
32	 */
33	public function Analyze() {
34		$info = &$this->getid3->info;
35
36		$info['fileformat'] = 'quicktime';
37		$info['quicktime']['hinting']    = false;
38		$info['quicktime']['controller'] = 'standard'; // may be overridden if 'ctyp' atom is present
39
40		$this->fseek($info['avdataoffset']);
41
42		$offset      = 0;
43		$atomcounter = 0;
44		$atom_data_read_buffer_size = $info['php_memory_limit'] ? round($info['php_memory_limit'] / 4) : $this->getid3->option_fread_buffer_size * 1024; // set read buffer to 25% of PHP memory limit (if one is specified), otherwise use option_fread_buffer_size [default: 32MB]
45		while ($offset < $info['avdataend']) {
46			if (!getid3_lib::intValueSupported($offset)) {
47				$this->error('Unable to parse atom at offset '.$offset.' because beyond '.round(PHP_INT_MAX / 1073741824).'GB limit of PHP filesystem functions');
48				break;
49			}
50			$this->fseek($offset);
51			$AtomHeader = $this->fread(8);
52
53			$atomsize = getid3_lib::BigEndian2Int(substr($AtomHeader, 0, 4));
54			$atomname = substr($AtomHeader, 4, 4);
55
56			// 64-bit MOV patch by jlegateØktnc*com
57			if ($atomsize == 1) {
58				$atomsize = getid3_lib::BigEndian2Int($this->fread(8));
59			}
60
61			if (($offset + $atomsize) > $info['avdataend']) {
62				$info['quicktime'][$atomname]['name']   = $atomname;
63				$info['quicktime'][$atomname]['size']   = $atomsize;
64				$info['quicktime'][$atomname]['offset'] = $offset;
65				$this->error('Atom at offset '.$offset.' claims to go beyond end-of-file (length: '.$atomsize.' bytes)');
66				return false;
67			}
68			if ($atomsize == 0) {
69				// Furthermore, for historical reasons the list of atoms is optionally
70				// terminated by a 32-bit integer set to 0. If you are writing a program
71				// to read user data atoms, you should allow for the terminating 0.
72				$info['quicktime'][$atomname]['name']   = $atomname;
73				$info['quicktime'][$atomname]['size']   = $atomsize;
74				$info['quicktime'][$atomname]['offset'] = $offset;
75				break;
76			}
77
78			$atomHierarchy = array();
79			$parsedAtomData = $this->QuicktimeParseAtom($atomname, $atomsize, $this->fread(min($atomsize, $atom_data_read_buffer_size)), $offset, $atomHierarchy, $this->ParseAllPossibleAtoms);
80			$parsedAtomData['name']   = $atomname;
81			$parsedAtomData['size']   = $atomsize;
82			$parsedAtomData['offset'] = $offset;
83			if (in_array($atomname, array('uuid'))) {
84				@$info['quicktime'][$atomname][] = $parsedAtomData;
85			} else {
86				$info['quicktime'][$atomname] = $parsedAtomData;
87			}
88
89			$offset += $atomsize;
90			$atomcounter++;
91		}
92
93		if (!empty($info['avdataend_tmp'])) {
94			// this value is assigned to a temp value and then erased because
95			// otherwise any atoms beyond the 'mdat' atom would not get parsed
96			$info['avdataend'] = $info['avdataend_tmp'];
97			unset($info['avdataend_tmp']);
98		}
99
100		if (!empty($info['quicktime']['comments']['chapters']) && is_array($info['quicktime']['comments']['chapters']) && (count($info['quicktime']['comments']['chapters']) > 0)) {
101			$durations = $this->quicktime_time_to_sample_table($info);
102			for ($i = 0; $i < count($info['quicktime']['comments']['chapters']); $i++) {
103				$bookmark = array();
104				$bookmark['title'] = $info['quicktime']['comments']['chapters'][$i];
105				if (isset($durations[$i])) {
106					$bookmark['duration_sample'] = $durations[$i]['sample_duration'];
107					if ($i > 0) {
108						$bookmark['start_sample'] = $info['quicktime']['bookmarks'][($i - 1)]['start_sample'] + $info['quicktime']['bookmarks'][($i - 1)]['duration_sample'];
109					} else {
110						$bookmark['start_sample'] = 0;
111					}
112					if ($time_scale = $this->quicktime_bookmark_time_scale($info)) {
113						$bookmark['duration_seconds'] = $bookmark['duration_sample'] / $time_scale;
114						$bookmark['start_seconds']    = $bookmark['start_sample']    / $time_scale;
115					}
116				}
117				$info['quicktime']['bookmarks'][] = $bookmark;
118			}
119		}
120
121		if (isset($info['quicktime']['temp_meta_key_names'])) {
122			unset($info['quicktime']['temp_meta_key_names']);
123		}
124
125		if (!empty($info['quicktime']['comments']['location.ISO6709'])) {
126			// https://en.wikipedia.org/wiki/ISO_6709
127			foreach ($info['quicktime']['comments']['location.ISO6709'] as $ISO6709string) {
128				$ISO6709parsed = array('latitude'=>false, 'longitude'=>false, 'altitude'=>false);
129				if (preg_match('#^([\\+\\-])([0-9]{2}|[0-9]{4}|[0-9]{6})(\\.[0-9]+)?([\\+\\-])([0-9]{3}|[0-9]{5}|[0-9]{7})(\\.[0-9]+)?(([\\+\\-])([0-9]{3}|[0-9]{5}|[0-9]{7})(\\.[0-9]+)?)?/$#', $ISO6709string, $matches)) {
130					@list($dummy, $lat_sign, $lat_deg, $lat_deg_dec, $lon_sign, $lon_deg, $lon_deg_dec, $dummy, $alt_sign, $alt_deg, $alt_deg_dec) = $matches;
131
132					if (strlen($lat_deg) == 2) {        // [+-]DD.D
133						$ISO6709parsed['latitude'] = (($lat_sign == '-') ? -1 : 1) * floatval(ltrim($lat_deg, '0').$lat_deg_dec);
134					} elseif (strlen($lat_deg) == 4) {  // [+-]DDMM.M
135						$ISO6709parsed['latitude'] = (($lat_sign == '-') ? -1 : 1) * floatval(ltrim(substr($lat_deg, 0, 2), '0')) + floatval(ltrim(substr($lat_deg, 2, 2), '0').$lat_deg_dec / 60);
136					} elseif (strlen($lat_deg) == 6) {  // [+-]DDMMSS.S
137						$ISO6709parsed['latitude'] = (($lat_sign == '-') ? -1 : 1) * floatval(ltrim(substr($lat_deg, 0, 2), '0')) + floatval(ltrim(substr($lat_deg, 2, 2), '0') / 60) + floatval(ltrim(substr($lat_deg, 4, 2), '0').$lat_deg_dec / 3600);
138					}
139
140					if (strlen($lon_deg) == 3) {        // [+-]DDD.D
141						$ISO6709parsed['longitude'] = (($lon_sign == '-') ? -1 : 1) * floatval(ltrim($lon_deg, '0').$lon_deg_dec);
142					} elseif (strlen($lon_deg) == 5) {  // [+-]DDDMM.M
143						$ISO6709parsed['longitude'] = (($lon_sign == '-') ? -1 : 1) * floatval(ltrim(substr($lon_deg, 0, 2), '0')) + floatval(ltrim(substr($lon_deg, 2, 2), '0').$lon_deg_dec / 60);
144					} elseif (strlen($lon_deg) == 7) {  // [+-]DDDMMSS.S
145						$ISO6709parsed['longitude'] = (($lon_sign == '-') ? -1 : 1) * floatval(ltrim(substr($lon_deg, 0, 2), '0')) + floatval(ltrim(substr($lon_deg, 2, 2), '0') / 60) + floatval(ltrim(substr($lon_deg, 4, 2), '0').$lon_deg_dec / 3600);
146					}
147
148					if (strlen($alt_deg) == 3) {        // [+-]DDD.D
149						$ISO6709parsed['altitude'] = (($alt_sign == '-') ? -1 : 1) * floatval(ltrim($alt_deg, '0').$alt_deg_dec);
150					} elseif (strlen($alt_deg) == 5) {  // [+-]DDDMM.M
151						$ISO6709parsed['altitude'] = (($alt_sign == '-') ? -1 : 1) * floatval(ltrim(substr($alt_deg, 0, 2), '0')) + floatval(ltrim(substr($alt_deg, 2, 2), '0').$alt_deg_dec / 60);
152					} elseif (strlen($alt_deg) == 7) {  // [+-]DDDMMSS.S
153						$ISO6709parsed['altitude'] = (($alt_sign == '-') ? -1 : 1) * floatval(ltrim(substr($alt_deg, 0, 2), '0')) + floatval(ltrim(substr($alt_deg, 2, 2), '0') / 60) + floatval(ltrim(substr($alt_deg, 4, 2), '0').$alt_deg_dec / 3600);
154					}
155
156					foreach (array('latitude', 'longitude', 'altitude') as $key) {
157						if ($ISO6709parsed[$key] !== false) {
158							$value = (($lat_sign == '-') ? -1 : 1) * floatval($ISO6709parsed[$key]);
159							if (!isset($info['quicktime']['comments']['gps_'.$key]) || !in_array($value, $info['quicktime']['comments']['gps_'.$key])) {
160								@$info['quicktime']['comments']['gps_'.$key][] = (($lat_sign == '-') ? -1 : 1) * floatval($ISO6709parsed[$key]);
161							}
162						}
163					}
164				}
165				if ($ISO6709parsed['latitude'] === false) {
166					$this->warning('location.ISO6709 string not parsed correctly: "'.$ISO6709string.'", please submit as a bug');
167				}
168				break;
169			}
170		}
171
172		if (!isset($info['bitrate']) && isset($info['playtime_seconds'])) {
173			$info['bitrate'] = (($info['avdataend'] - $info['avdataoffset']) * 8) / $info['playtime_seconds'];
174		}
175		if (isset($info['bitrate']) && !isset($info['audio']['bitrate']) && !isset($info['quicktime']['video'])) {
176			$info['audio']['bitrate'] = $info['bitrate'];
177		}
178		if (!empty($info['bitrate']) && !empty($info['audio']['bitrate']) && empty($info['video']['bitrate']) && !empty($info['video']['frame_rate']) && !empty($info['video']['resolution_x']) && ($info['bitrate'] > $info['audio']['bitrate'])) {
179			$info['video']['bitrate'] = $info['bitrate'] - $info['audio']['bitrate'];
180		}
181		if (!empty($info['playtime_seconds']) && !isset($info['video']['frame_rate']) && !empty($info['quicktime']['stts_framecount'])) {
182			foreach ($info['quicktime']['stts_framecount'] as $key => $samples_count) {
183				$samples_per_second = $samples_count / $info['playtime_seconds'];
184				if ($samples_per_second > 240) {
185					// has to be audio samples
186				} else {
187					$info['video']['frame_rate'] = $samples_per_second;
188					break;
189				}
190			}
191		}
192		if ($info['audio']['dataformat'] == 'mp4') {
193			$info['fileformat'] = 'mp4';
194			if (empty($info['video']['resolution_x'])) {
195				$info['mime_type']  = 'audio/mp4';
196				unset($info['video']['dataformat']);
197			} else {
198				$info['mime_type']  = 'video/mp4';
199			}
200		}
201
202		if (!$this->ReturnAtomData) {
203			unset($info['quicktime']['moov']);
204		}
205
206		if (empty($info['audio']['dataformat']) && !empty($info['quicktime']['audio'])) {
207			$info['audio']['dataformat'] = 'quicktime';
208		}
209		if (empty($info['video']['dataformat']) && !empty($info['quicktime']['video'])) {
210			$info['video']['dataformat'] = 'quicktime';
211		}
212		if (isset($info['video']) && ($info['mime_type'] == 'audio/mp4') && empty($info['video']['resolution_x']) && empty($info['video']['resolution_y']))  {
213			unset($info['video']);
214		}
215
216		return true;
217	}
218
219	/**
220	 * @param string $atomname
221	 * @param int    $atomsize
222	 * @param string $atom_data
223	 * @param int    $baseoffset
224	 * @param array  $atomHierarchy
225	 * @param bool   $ParseAllPossibleAtoms
226	 *
227	 * @return array|false
228	 */
229	public function QuicktimeParseAtom($atomname, $atomsize, $atom_data, $baseoffset, &$atomHierarchy, $ParseAllPossibleAtoms) {
230		// http://developer.apple.com/techpubs/quicktime/qtdevdocs/APIREF/INDEX/atomalphaindex.htm
231		// https://code.google.com/p/mp4v2/wiki/iTunesMetadata
232
233		$info = &$this->getid3->info;
234
235		$atom_parent = end($atomHierarchy); // not array_pop($atomHierarchy); see https://www.getid3.org/phpBB3/viewtopic.php?t=1717
236		array_push($atomHierarchy, $atomname);
237		$atom_structure              = array();
238		$atom_structure['hierarchy'] = implode(' ', $atomHierarchy);
239		$atom_structure['name']      = $atomname;
240		$atom_structure['size']      = $atomsize;
241		$atom_structure['offset']    = $baseoffset;
242		if (substr($atomname, 0, 3) == "\x00\x00\x00") {
243			// https://github.com/JamesHeinrich/getID3/issues/139
244			$atomname = getid3_lib::BigEndian2Int($atomname);
245			$atom_structure['name'] = $atomname;
246			$atom_structure['subatoms'] = $this->QuicktimeParseContainerAtom($atom_data, $baseoffset + 8, $atomHierarchy, $ParseAllPossibleAtoms);
247		} else {
248			switch ($atomname) {
249				case 'moov': // MOVie container atom
250				case 'trak': // TRAcK container atom
251				case 'clip': // CLIPping container atom
252				case 'matt': // track MATTe container atom
253				case 'edts': // EDiTS container atom
254				case 'tref': // Track REFerence container atom
255				case 'mdia': // MeDIA container atom
256				case 'minf': // Media INFormation container atom
257				case 'dinf': // Data INFormation container atom
258				case 'nmhd': // Null Media HeaDer container atom
259				case 'udta': // User DaTA container atom
260				case 'cmov': // Compressed MOVie container atom
261				case 'rmra': // Reference Movie Record Atom
262				case 'rmda': // Reference Movie Descriptor Atom
263				case 'gmhd': // Generic Media info HeaDer atom (seen on QTVR)
264					$atom_structure['subatoms'] = $this->QuicktimeParseContainerAtom($atom_data, $baseoffset + 8, $atomHierarchy, $ParseAllPossibleAtoms);
265					break;
266
267				case 'ilst': // Item LiST container atom
268					if ($atom_structure['subatoms'] = $this->QuicktimeParseContainerAtom($atom_data, $baseoffset + 8, $atomHierarchy, $ParseAllPossibleAtoms)) {
269						// some "ilst" atoms contain data atoms that have a numeric name, and the data is far more accessible if the returned array is compacted
270						$allnumericnames = true;
271						foreach ($atom_structure['subatoms'] as $subatomarray) {
272							if (!is_integer($subatomarray['name']) || (count($subatomarray['subatoms']) != 1)) {
273								$allnumericnames = false;
274								break;
275							}
276						}
277						if ($allnumericnames) {
278							$newData = array();
279							foreach ($atom_structure['subatoms'] as $subatomarray) {
280								foreach ($subatomarray['subatoms'] as $newData_subatomarray) {
281									unset($newData_subatomarray['hierarchy'], $newData_subatomarray['name']);
282									$newData[$subatomarray['name']] = $newData_subatomarray;
283									break;
284								}
285							}
286							$atom_structure['data'] = $newData;
287							unset($atom_structure['subatoms']);
288						}
289					}
290					break;
291
292				case 'stbl': // Sample TaBLe container atom
293					$atom_structure['subatoms'] = $this->QuicktimeParseContainerAtom($atom_data, $baseoffset + 8, $atomHierarchy, $ParseAllPossibleAtoms);
294					$isVideo = false;
295					$framerate  = 0;
296					$framecount = 0;
297					foreach ($atom_structure['subatoms'] as $key => $value_array) {
298						if (isset($value_array['sample_description_table'])) {
299							foreach ($value_array['sample_description_table'] as $key2 => $value_array2) {
300								if (isset($value_array2['data_format'])) {
301									switch ($value_array2['data_format']) {
302										case 'avc1':
303										case 'mp4v':
304											// video data
305											$isVideo = true;
306											break;
307										case 'mp4a':
308											// audio data
309											break;
310									}
311								}
312							}
313						} elseif (isset($value_array['time_to_sample_table'])) {
314							foreach ($value_array['time_to_sample_table'] as $key2 => $value_array2) {
315								if (isset($value_array2['sample_count']) && isset($value_array2['sample_duration']) && ($value_array2['sample_duration'] > 0)) {
316									$framerate  = round($info['quicktime']['time_scale'] / $value_array2['sample_duration'], 3);
317									$framecount = $value_array2['sample_count'];
318								}
319							}
320						}
321					}
322					if ($isVideo && $framerate) {
323						$info['quicktime']['video']['frame_rate'] = $framerate;
324						$info['video']['frame_rate'] = $info['quicktime']['video']['frame_rate'];
325					}
326					if ($isVideo && $framecount) {
327						$info['quicktime']['video']['frame_count'] = $framecount;
328					}
329					break;
330
331
332				case "\xA9".'alb': // ALBum
333				case "\xA9".'ART': //
334				case "\xA9".'art': // ARTist
335				case "\xA9".'aut': //
336				case "\xA9".'cmt': // CoMmenT
337				case "\xA9".'com': // COMposer
338				case "\xA9".'cpy': //
339				case "\xA9".'day': // content created year
340				case "\xA9".'dir': //
341				case "\xA9".'ed1': //
342				case "\xA9".'ed2': //
343				case "\xA9".'ed3': //
344				case "\xA9".'ed4': //
345				case "\xA9".'ed5': //
346				case "\xA9".'ed6': //
347				case "\xA9".'ed7': //
348				case "\xA9".'ed8': //
349				case "\xA9".'ed9': //
350				case "\xA9".'enc': //
351				case "\xA9".'fmt': //
352				case "\xA9".'gen': // GENre
353				case "\xA9".'grp': // GRouPing
354				case "\xA9".'hst': //
355				case "\xA9".'inf': //
356				case "\xA9".'lyr': // LYRics
357				case "\xA9".'mak': //
358				case "\xA9".'mod': //
359				case "\xA9".'nam': // full NAMe
360				case "\xA9".'ope': //
361				case "\xA9".'PRD': //
362				case "\xA9".'prf': //
363				case "\xA9".'req': //
364				case "\xA9".'src': //
365				case "\xA9".'swr': //
366				case "\xA9".'too': // encoder
367				case "\xA9".'trk': // TRacK
368				case "\xA9".'url': //
369				case "\xA9".'wrn': //
370				case "\xA9".'wrt': // WRiTer
371				case '----': // itunes specific
372				case 'aART': // Album ARTist
373				case 'akID': // iTunes store account type
374				case 'apID': // Purchase Account
375				case 'atID': //
376				case 'catg': // CaTeGory
377				case 'cmID': //
378				case 'cnID': //
379				case 'covr': // COVeR artwork
380				case 'cpil': // ComPILation
381				case 'cprt': // CoPyRighT
382				case 'desc': // DESCription
383				case 'disk': // DISK number
384				case 'egid': // Episode Global ID
385				case 'geID': //
386				case 'gnre': // GeNRE
387				case 'hdvd': // HD ViDeo
388				case 'keyw': // KEYWord
389				case 'ldes': // Long DEScription
390				case 'pcst': // PodCaST
391				case 'pgap': // GAPless Playback
392				case 'plID': //
393				case 'purd': // PURchase Date
394				case 'purl': // Podcast URL
395				case 'rati': //
396				case 'rndu': //
397				case 'rpdu': //
398				case 'rtng': // RaTiNG
399				case 'sfID': // iTunes store country
400				case 'soaa': // SOrt Album Artist
401				case 'soal': // SOrt ALbum
402				case 'soar': // SOrt ARtist
403				case 'soco': // SOrt COmposer
404				case 'sonm': // SOrt NaMe
405				case 'sosn': // SOrt Show Name
406				case 'stik': //
407				case 'tmpo': // TeMPO (BPM)
408				case 'trkn': // TRacK Number
409				case 'tven': // tvEpisodeID
410				case 'tves': // TV EpiSode
411				case 'tvnn': // TV Network Name
412				case 'tvsh': // TV SHow Name
413				case 'tvsn': // TV SeasoN
414					if ($atom_parent == 'udta') {
415						// User data atom handler
416						$atom_structure['data_length'] = getid3_lib::BigEndian2Int(substr($atom_data, 0, 2));
417						$atom_structure['language_id'] = getid3_lib::BigEndian2Int(substr($atom_data, 2, 2));
418						$atom_structure['data']        =                           substr($atom_data, 4);
419
420						$atom_structure['language']    = $this->QuicktimeLanguageLookup($atom_structure['language_id']);
421						if (empty($info['comments']['language']) || (!in_array($atom_structure['language'], $info['comments']['language']))) {
422							$info['comments']['language'][] = $atom_structure['language'];
423						}
424					} else {
425						// Apple item list box atom handler
426						$atomoffset = 0;
427						if (substr($atom_data, 2, 2) == "\x10\xB5") {
428							// not sure what it means, but observed on iPhone4 data.
429							// Each $atom_data has 2 bytes of datasize, plus 0x10B5, then data
430							while ($atomoffset < strlen($atom_data)) {
431								$boxsmallsize = getid3_lib::BigEndian2Int(substr($atom_data, $atomoffset,     2));
432								$boxsmalltype =                           substr($atom_data, $atomoffset + 2, 2);
433								$boxsmalldata =                           substr($atom_data, $atomoffset + 4, $boxsmallsize);
434								if ($boxsmallsize <= 1) {
435									$this->warning('Invalid QuickTime atom smallbox size "'.$boxsmallsize.'" in atom "'.preg_replace('#[^a-zA-Z0-9 _\\-]#', '?', $atomname).'" at offset: '.($atom_structure['offset'] + $atomoffset));
436									$atom_structure['data'] = null;
437									$atomoffset = strlen($atom_data);
438									break;
439								}
440								switch ($boxsmalltype) {
441									case "\x10\xB5":
442										$atom_structure['data'] = $boxsmalldata;
443										break;
444									default:
445										$this->warning('Unknown QuickTime smallbox type: "'.preg_replace('#[^a-zA-Z0-9 _\\-]#', '?', $boxsmalltype).'" ('.trim(getid3_lib::PrintHexBytes($boxsmalltype)).') at offset '.$baseoffset);
446										$atom_structure['data'] = $atom_data;
447										break;
448								}
449								$atomoffset += (4 + $boxsmallsize);
450							}
451						} else {
452							while ($atomoffset < strlen($atom_data)) {
453								$boxsize = getid3_lib::BigEndian2Int(substr($atom_data, $atomoffset, 4));
454								$boxtype =                           substr($atom_data, $atomoffset + 4, 4);
455								$boxdata =                           substr($atom_data, $atomoffset + 8, $boxsize - 8);
456								if ($boxsize <= 1) {
457									$this->warning('Invalid QuickTime atom box size "'.$boxsize.'" in atom "'.preg_replace('#[^a-zA-Z0-9 _\\-]#', '?', $atomname).'" at offset: '.($atom_structure['offset'] + $atomoffset));
458									$atom_structure['data'] = null;
459									$atomoffset = strlen($atom_data);
460									break;
461								}
462								$atomoffset += $boxsize;
463
464								switch ($boxtype) {
465									case 'mean':
466									case 'name':
467										$atom_structure[$boxtype] = substr($boxdata, 4);
468										break;
469
470									case 'data':
471										$atom_structure['version']   = getid3_lib::BigEndian2Int(substr($boxdata,  0, 1));
472										$atom_structure['flags_raw'] = getid3_lib::BigEndian2Int(substr($boxdata,  1, 3));
473										switch ($atom_structure['flags_raw']) {
474											case  0: // data flag
475											case 21: // tmpo/cpil flag
476												switch ($atomname) {
477													case 'cpil':
478													case 'hdvd':
479													case 'pcst':
480													case 'pgap':
481														// 8-bit integer (boolean)
482														$atom_structure['data'] = getid3_lib::BigEndian2Int(substr($boxdata, 8, 1));
483														break;
484
485													case 'tmpo':
486														// 16-bit integer
487														$atom_structure['data'] = getid3_lib::BigEndian2Int(substr($boxdata, 8, 2));
488														break;
489
490													case 'disk':
491													case 'trkn':
492														// binary
493														$num       = getid3_lib::BigEndian2Int(substr($boxdata, 10, 2));
494														$num_total = getid3_lib::BigEndian2Int(substr($boxdata, 12, 2));
495														$atom_structure['data']  = empty($num) ? '' : $num;
496														$atom_structure['data'] .= empty($num_total) ? '' : '/'.$num_total;
497														break;
498
499													case 'gnre':
500														// enum
501														$GenreID = getid3_lib::BigEndian2Int(substr($boxdata, 8, 4));
502														$atom_structure['data']    = getid3_id3v1::LookupGenreName($GenreID - 1);
503														break;
504
505													case 'rtng':
506														// 8-bit integer
507														$atom_structure[$atomname] = getid3_lib::BigEndian2Int(substr($boxdata, 8, 1));
508														$atom_structure['data']    = $this->QuicktimeContentRatingLookup($atom_structure[$atomname]);
509														break;
510
511													case 'stik':
512														// 8-bit integer (enum)
513														$atom_structure[$atomname] = getid3_lib::BigEndian2Int(substr($boxdata, 8, 1));
514														$atom_structure['data']    = $this->QuicktimeSTIKLookup($atom_structure[$atomname]);
515														break;
516
517													case 'sfID':
518														// 32-bit integer
519														$atom_structure[$atomname] = getid3_lib::BigEndian2Int(substr($boxdata, 8, 4));
520														$atom_structure['data']    = $this->QuicktimeStoreFrontCodeLookup($atom_structure[$atomname]);
521														break;
522
523													case 'egid':
524													case 'purl':
525														$atom_structure['data'] = substr($boxdata, 8);
526														break;
527
528													case 'plID':
529														// 64-bit integer
530														$atom_structure['data'] = getid3_lib::BigEndian2Int(substr($boxdata, 8, 8));
531														break;
532
533													case 'covr':
534														$atom_structure['data'] = substr($boxdata, 8);
535														// not a foolproof check, but better than nothing
536														if (preg_match('#^\\xFF\\xD8\\xFF#', $atom_structure['data'])) {
537															$atom_structure['image_mime'] = 'image/jpeg';
538														} elseif (preg_match('#^\\x89\\x50\\x4E\\x47\\x0D\\x0A\\x1A\\x0A#', $atom_structure['data'])) {
539															$atom_structure['image_mime'] = 'image/png';
540														} elseif (preg_match('#^GIF#', $atom_structure['data'])) {
541															$atom_structure['image_mime'] = 'image/gif';
542														}
543														$info['quicktime']['comments']['picture'][] = array('image_mime'=>$atom_structure['image_mime'], 'data'=>$atom_structure['data'], 'description'=>'cover');
544														break;
545
546													case 'atID':
547													case 'cnID':
548													case 'geID':
549													case 'tves':
550													case 'tvsn':
551													default:
552														// 32-bit integer
553														$atom_structure['data'] = getid3_lib::BigEndian2Int(substr($boxdata, 8, 4));
554												}
555												break;
556
557											case  1: // text flag
558											case 13: // image flag
559											default:
560												$atom_structure['data'] = substr($boxdata, 8);
561												if ($atomname == 'covr') {
562													// not a foolproof check, but better than nothing
563													if (preg_match('#^\\xFF\\xD8\\xFF#', $atom_structure['data'])) {
564														$atom_structure['image_mime'] = 'image/jpeg';
565													} elseif (preg_match('#^\\x89\\x50\\x4E\\x47\\x0D\\x0A\\x1A\\x0A#', $atom_structure['data'])) {
566														$atom_structure['image_mime'] = 'image/png';
567													} elseif (preg_match('#^GIF#', $atom_structure['data'])) {
568														$atom_structure['image_mime'] = 'image/gif';
569													}
570													$info['quicktime']['comments']['picture'][] = array('image_mime'=>$atom_structure['image_mime'], 'data'=>$atom_structure['data'], 'description'=>'cover');
571												}
572												break;
573
574										}
575										break;
576
577									default:
578										$this->warning('Unknown QuickTime box type: "'.preg_replace('#[^a-zA-Z0-9 _\\-]#', '?', $boxtype).'" ('.trim(getid3_lib::PrintHexBytes($boxtype)).') at offset '.$baseoffset);
579										$atom_structure['data'] = $atom_data;
580
581								}
582							}
583						}
584					}
585					$this->CopyToAppropriateCommentsSection($atomname, $atom_structure['data'], $atom_structure['name']);
586					break;
587
588
589				case 'play': // auto-PLAY atom
590					$atom_structure['autoplay'] = (bool) getid3_lib::BigEndian2Int(substr($atom_data,  0, 1));
591
592					$info['quicktime']['autoplay'] = $atom_structure['autoplay'];
593					break;
594
595
596				case 'WLOC': // Window LOCation atom
597					$atom_structure['location_x']  = getid3_lib::BigEndian2Int(substr($atom_data,  0, 2));
598					$atom_structure['location_y']  = getid3_lib::BigEndian2Int(substr($atom_data,  2, 2));
599					break;
600
601
602				case 'LOOP': // LOOPing atom
603				case 'SelO': // play SELection Only atom
604				case 'AllF': // play ALL Frames atom
605					$atom_structure['data'] = getid3_lib::BigEndian2Int($atom_data);
606					break;
607
608
609				case 'name': //
610				case 'MCPS': // Media Cleaner PRo
611				case '@PRM': // adobe PReMiere version
612				case '@PRQ': // adobe PRemiere Quicktime version
613					$atom_structure['data'] = $atom_data;
614					break;
615
616
617				case 'cmvd': // Compressed MooV Data atom
618					// Code by ubergeekØubergeek*tv based on information from
619					// http://developer.apple.com/quicktime/icefloe/dispatch012.html
620					$atom_structure['unCompressedSize'] = getid3_lib::BigEndian2Int(substr($atom_data, 0, 4));
621
622					$CompressedFileData = substr($atom_data, 4);
623					if ($UncompressedHeader = @gzuncompress($CompressedFileData)) {
624						$atom_structure['subatoms'] = $this->QuicktimeParseContainerAtom($UncompressedHeader, 0, $atomHierarchy, $ParseAllPossibleAtoms);
625					} else {
626						$this->warning('Error decompressing compressed MOV atom at offset '.$atom_structure['offset']);
627					}
628					break;
629
630
631				case 'dcom': // Data COMpression atom
632					$atom_structure['compression_id']   = $atom_data;
633					$atom_structure['compression_text'] = $this->QuicktimeDCOMLookup($atom_data);
634					break;
635
636
637				case 'rdrf': // Reference movie Data ReFerence atom
638					$atom_structure['version']                = getid3_lib::BigEndian2Int(substr($atom_data,  0, 1));
639					$atom_structure['flags_raw']              = getid3_lib::BigEndian2Int(substr($atom_data,  1, 3));
640					$atom_structure['flags']['internal_data'] = (bool) ($atom_structure['flags_raw'] & 0x000001);
641
642					$atom_structure['reference_type_name']    =                           substr($atom_data,  4, 4);
643					$atom_structure['reference_length']       = getid3_lib::BigEndian2Int(substr($atom_data,  8, 4));
644					switch ($atom_structure['reference_type_name']) {
645						case 'url ':
646							$atom_structure['url']            =       $this->NoNullString(substr($atom_data, 12));
647							break;
648
649						case 'alis':
650							$atom_structure['file_alias']     =                           substr($atom_data, 12);
651							break;
652
653						case 'rsrc':
654							$atom_structure['resource_alias'] =                           substr($atom_data, 12);
655							break;
656
657						default:
658							$atom_structure['data']           =                           substr($atom_data, 12);
659							break;
660					}
661					break;
662
663
664				case 'rmqu': // Reference Movie QUality atom
665					$atom_structure['movie_quality'] = getid3_lib::BigEndian2Int($atom_data);
666					break;
667
668
669				case 'rmcs': // Reference Movie Cpu Speed atom
670					$atom_structure['version']          = getid3_lib::BigEndian2Int(substr($atom_data,  0, 1));
671					$atom_structure['flags_raw']        = getid3_lib::BigEndian2Int(substr($atom_data,  1, 3)); // hardcoded: 0x0000
672					$atom_structure['cpu_speed_rating'] = getid3_lib::BigEndian2Int(substr($atom_data,  4, 2));
673					break;
674
675
676				case 'rmvc': // Reference Movie Version Check atom
677					$atom_structure['version']            = getid3_lib::BigEndian2Int(substr($atom_data,  0, 1));
678					$atom_structure['flags_raw']          = getid3_lib::BigEndian2Int(substr($atom_data,  1, 3)); // hardcoded: 0x0000
679					$atom_structure['gestalt_selector']   =                           substr($atom_data,  4, 4);
680					$atom_structure['gestalt_value_mask'] = getid3_lib::BigEndian2Int(substr($atom_data,  8, 4));
681					$atom_structure['gestalt_value']      = getid3_lib::BigEndian2Int(substr($atom_data, 12, 4));
682					$atom_structure['gestalt_check_type'] = getid3_lib::BigEndian2Int(substr($atom_data, 14, 2));
683					break;
684
685
686				case 'rmcd': // Reference Movie Component check atom
687					$atom_structure['version']                = getid3_lib::BigEndian2Int(substr($atom_data,  0, 1));
688					$atom_structure['flags_raw']              = getid3_lib::BigEndian2Int(substr($atom_data,  1, 3)); // hardcoded: 0x0000
689					$atom_structure['component_type']         =                           substr($atom_data,  4, 4);
690					$atom_structure['component_subtype']      =                           substr($atom_data,  8, 4);
691					$atom_structure['component_manufacturer'] =                           substr($atom_data, 12, 4);
692					$atom_structure['component_flags_raw']    = getid3_lib::BigEndian2Int(substr($atom_data, 16, 4));
693					$atom_structure['component_flags_mask']   = getid3_lib::BigEndian2Int(substr($atom_data, 20, 4));
694					$atom_structure['component_min_version']  = getid3_lib::BigEndian2Int(substr($atom_data, 24, 4));
695					break;
696
697
698				case 'rmdr': // Reference Movie Data Rate atom
699					$atom_structure['version']       = getid3_lib::BigEndian2Int(substr($atom_data,  0, 1));
700					$atom_structure['flags_raw']     = getid3_lib::BigEndian2Int(substr($atom_data,  1, 3)); // hardcoded: 0x0000
701					$atom_structure['data_rate']     = getid3_lib::BigEndian2Int(substr($atom_data,  4, 4));
702
703					$atom_structure['data_rate_bps'] = $atom_structure['data_rate'] * 10;
704					break;
705
706
707				case 'rmla': // Reference Movie Language Atom
708					$atom_structure['version']     = getid3_lib::BigEndian2Int(substr($atom_data,  0, 1));
709					$atom_structure['flags_raw']   = getid3_lib::BigEndian2Int(substr($atom_data,  1, 3)); // hardcoded: 0x0000
710					$atom_structure['language_id'] = getid3_lib::BigEndian2Int(substr($atom_data,  4, 2));
711
712					$atom_structure['language']    = $this->QuicktimeLanguageLookup($atom_structure['language_id']);
713					if (empty($info['comments']['language']) || (!in_array($atom_structure['language'], $info['comments']['language']))) {
714						$info['comments']['language'][] = $atom_structure['language'];
715					}
716					break;
717
718
719				case 'ptv ': // Print To Video - defines a movie's full screen mode
720					// http://developer.apple.com/documentation/QuickTime/APIREF/SOURCESIV/at_ptv-_pg.htm
721					$atom_structure['display_size_raw']  = getid3_lib::BigEndian2Int(substr($atom_data, 0, 2));
722					$atom_structure['reserved_1']        = getid3_lib::BigEndian2Int(substr($atom_data, 2, 2)); // hardcoded: 0x0000
723					$atom_structure['reserved_2']        = getid3_lib::BigEndian2Int(substr($atom_data, 4, 2)); // hardcoded: 0x0000
724					$atom_structure['slide_show_flag']   = getid3_lib::BigEndian2Int(substr($atom_data, 6, 1));
725					$atom_structure['play_on_open_flag'] = getid3_lib::BigEndian2Int(substr($atom_data, 7, 1));
726
727					$atom_structure['flags']['play_on_open'] = (bool) $atom_structure['play_on_open_flag'];
728					$atom_structure['flags']['slide_show']   = (bool) $atom_structure['slide_show_flag'];
729
730					$ptv_lookup[0] = 'normal';
731					$ptv_lookup[1] = 'double';
732					$ptv_lookup[2] = 'half';
733					$ptv_lookup[3] = 'full';
734					$ptv_lookup[4] = 'current';
735					if (isset($ptv_lookup[$atom_structure['display_size_raw']])) {
736						$atom_structure['display_size'] = $ptv_lookup[$atom_structure['display_size_raw']];
737					} else {
738						$this->warning('unknown "ptv " display constant ('.$atom_structure['display_size_raw'].')');
739					}
740					break;
741
742
743				case 'stsd': // Sample Table Sample Description atom
744					$atom_structure['version']        = getid3_lib::BigEndian2Int(substr($atom_data,  0, 1));
745					$atom_structure['flags_raw']      = getid3_lib::BigEndian2Int(substr($atom_data,  1, 3)); // hardcoded: 0x0000
746					$atom_structure['number_entries'] = getid3_lib::BigEndian2Int(substr($atom_data,  4, 4));
747
748					// see: https://github.com/JamesHeinrich/getID3/issues/111
749					// Some corrupt files have been known to have high bits set in the number_entries field
750					// This field shouldn't really need to be 32-bits, values stores are likely in the range 1-100000
751					// Workaround: mask off the upper byte and throw a warning if it's nonzero
752					if ($atom_structure['number_entries'] > 0x000FFFFF) {
753						if ($atom_structure['number_entries'] > 0x00FFFFFF) {
754							$this->warning('"stsd" atom contains improbably large number_entries (0x'.getid3_lib::PrintHexBytes(substr($atom_data, 4, 4), true, false).' = '.$atom_structure['number_entries'].'), probably in error. Ignoring upper byte and interpreting this as 0x'.getid3_lib::PrintHexBytes(substr($atom_data, 5, 3), true, false).' = '.($atom_structure['number_entries'] & 0x00FFFFFF));
755							$atom_structure['number_entries'] = ($atom_structure['number_entries'] & 0x00FFFFFF);
756						} else {
757							$this->warning('"stsd" atom contains improbably large number_entries (0x'.getid3_lib::PrintHexBytes(substr($atom_data, 4, 4), true, false).' = '.$atom_structure['number_entries'].'), probably in error. Please report this to info@getid3.org referencing bug report #111');
758						}
759					}
760
761					$stsdEntriesDataOffset = 8;
762					for ($i = 0; $i < $atom_structure['number_entries']; $i++) {
763						$atom_structure['sample_description_table'][$i]['size']             = getid3_lib::BigEndian2Int(substr($atom_data, $stsdEntriesDataOffset, 4));
764						$stsdEntriesDataOffset += 4;
765						$atom_structure['sample_description_table'][$i]['data_format']      =                           substr($atom_data, $stsdEntriesDataOffset, 4);
766						$stsdEntriesDataOffset += 4;
767						$atom_structure['sample_description_table'][$i]['reserved']         = getid3_lib::BigEndian2Int(substr($atom_data, $stsdEntriesDataOffset, 6));
768						$stsdEntriesDataOffset += 6;
769						$atom_structure['sample_description_table'][$i]['reference_index']  = getid3_lib::BigEndian2Int(substr($atom_data, $stsdEntriesDataOffset, 2));
770						$stsdEntriesDataOffset += 2;
771						$atom_structure['sample_description_table'][$i]['data']             =                           substr($atom_data, $stsdEntriesDataOffset, ($atom_structure['sample_description_table'][$i]['size'] - 4 - 4 - 6 - 2));
772						$stsdEntriesDataOffset += ($atom_structure['sample_description_table'][$i]['size'] - 4 - 4 - 6 - 2);
773
774						if (substr($atom_structure['sample_description_table'][$i]['data'],  1, 54) == 'application/octet-stream;type=com.parrot.videometadata') {
775							// special handling for apparently-malformed (TextMetaDataSampleEntry?) data for some version of Parrot drones
776							$atom_structure['sample_description_table'][$i]['parrot_frame_metadata']['mime_type']        =       substr($atom_structure['sample_description_table'][$i]['data'],  1, 55);
777							$atom_structure['sample_description_table'][$i]['parrot_frame_metadata']['metadata_version'] = (int) substr($atom_structure['sample_description_table'][$i]['data'], 55,  1);
778							unset($atom_structure['sample_description_table'][$i]['data']);
779$this->warning('incomplete/incorrect handling of "stsd" with Parrot metadata in this version of getID3() ['.$this->getid3->version().']');
780							continue;
781						}
782
783						$atom_structure['sample_description_table'][$i]['encoder_version']  = getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'],  0, 2));
784						$atom_structure['sample_description_table'][$i]['encoder_revision'] = getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'],  2, 2));
785						$atom_structure['sample_description_table'][$i]['encoder_vendor']   =                           substr($atom_structure['sample_description_table'][$i]['data'],  4, 4);
786
787						switch ($atom_structure['sample_description_table'][$i]['encoder_vendor']) {
788
789							case "\x00\x00\x00\x00":
790								// audio tracks
791								$atom_structure['sample_description_table'][$i]['audio_channels']       =   getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'],  8,  2));
792								$atom_structure['sample_description_table'][$i]['audio_bit_depth']      =   getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'], 10,  2));
793								$atom_structure['sample_description_table'][$i]['audio_compression_id'] =   getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'], 12,  2));
794								$atom_structure['sample_description_table'][$i]['audio_packet_size']    =   getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'], 14,  2));
795								$atom_structure['sample_description_table'][$i]['audio_sample_rate']    = getid3_lib::FixedPoint16_16(substr($atom_structure['sample_description_table'][$i]['data'], 16,  4));
796
797								// video tracks
798								// http://developer.apple.com/library/mac/#documentation/QuickTime/QTFF/QTFFChap3/qtff3.html
799								$atom_structure['sample_description_table'][$i]['temporal_quality'] =   getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'],  8,  4));
800								$atom_structure['sample_description_table'][$i]['spatial_quality']  =   getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'], 12,  4));
801								$atom_structure['sample_description_table'][$i]['width']            =   getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'], 16,  2));
802								$atom_structure['sample_description_table'][$i]['height']           =   getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'], 18,  2));
803								$atom_structure['sample_description_table'][$i]['resolution_x']     = getid3_lib::FixedPoint16_16(substr($atom_structure['sample_description_table'][$i]['data'], 24,  4));
804								$atom_structure['sample_description_table'][$i]['resolution_y']     = getid3_lib::FixedPoint16_16(substr($atom_structure['sample_description_table'][$i]['data'], 28,  4));
805								$atom_structure['sample_description_table'][$i]['data_size']        =   getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'], 32,  4));
806								$atom_structure['sample_description_table'][$i]['frame_count']      =   getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'], 36,  2));
807								$atom_structure['sample_description_table'][$i]['compressor_name']  =                             substr($atom_structure['sample_description_table'][$i]['data'], 38,  4);
808								$atom_structure['sample_description_table'][$i]['pixel_depth']      =   getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'], 42,  2));
809								$atom_structure['sample_description_table'][$i]['color_table_id']   =   getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'], 44,  2));
810
811								switch ($atom_structure['sample_description_table'][$i]['data_format']) {
812									case '2vuY':
813									case 'avc1':
814									case 'cvid':
815									case 'dvc ':
816									case 'dvcp':
817									case 'gif ':
818									case 'h263':
819									case 'jpeg':
820									case 'kpcd':
821									case 'mjpa':
822									case 'mjpb':
823									case 'mp4v':
824									case 'png ':
825									case 'raw ':
826									case 'rle ':
827									case 'rpza':
828									case 'smc ':
829									case 'SVQ1':
830									case 'SVQ3':
831									case 'tiff':
832									case 'v210':
833									case 'v216':
834									case 'v308':
835									case 'v408':
836									case 'v410':
837									case 'yuv2':
838										$info['fileformat'] = 'mp4';
839										$info['video']['fourcc'] = $atom_structure['sample_description_table'][$i]['data_format'];
840										if ($this->QuicktimeVideoCodecLookup($info['video']['fourcc'])) {
841											$info['video']['fourcc_lookup'] = $this->QuicktimeVideoCodecLookup($info['video']['fourcc']);
842										}
843
844										// https://www.getid3.org/phpBB3/viewtopic.php?t=1550
845										//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
846										if (!empty($atom_structure['sample_description_table'][$i]['width']) && !empty($atom_structure['sample_description_table'][$i]['height'])) {
847											// assume that values stored here are more important than values stored in [tkhd] atom
848											$info['video']['resolution_x'] = $atom_structure['sample_description_table'][$i]['width'];
849											$info['video']['resolution_y'] = $atom_structure['sample_description_table'][$i]['height'];
850											$info['quicktime']['video']['resolution_x'] = $info['video']['resolution_x'];
851											$info['quicktime']['video']['resolution_y'] = $info['video']['resolution_y'];
852										}
853										break;
854
855									case 'qtvr':
856										$info['video']['dataformat'] = 'quicktimevr';
857										break;
858
859									case 'mp4a':
860									default:
861										$info['quicktime']['audio']['codec']       = $this->QuicktimeAudioCodecLookup($atom_structure['sample_description_table'][$i]['data_format']);
862										$info['quicktime']['audio']['sample_rate'] = $atom_structure['sample_description_table'][$i]['audio_sample_rate'];
863										$info['quicktime']['audio']['channels']    = $atom_structure['sample_description_table'][$i]['audio_channels'];
864										$info['quicktime']['audio']['bit_depth']   = $atom_structure['sample_description_table'][$i]['audio_bit_depth'];
865										$info['audio']['codec']                    = $info['quicktime']['audio']['codec'];
866										$info['audio']['sample_rate']              = $info['quicktime']['audio']['sample_rate'];
867										$info['audio']['channels']                 = $info['quicktime']['audio']['channels'];
868										$info['audio']['bits_per_sample']          = $info['quicktime']['audio']['bit_depth'];
869										switch ($atom_structure['sample_description_table'][$i]['data_format']) {
870											case 'raw ': // PCM
871											case 'alac': // Apple Lossless Audio Codec
872											case 'sowt': // signed/two's complement (Little Endian)
873											case 'twos': // signed/two's complement (Big Endian)
874											case 'in24': // 24-bit Integer
875											case 'in32': // 32-bit Integer
876											case 'fl32': // 32-bit Floating Point
877											case 'fl64': // 64-bit Floating Point
878												$info['audio']['lossless'] = $info['quicktime']['audio']['lossless'] = true;
879												$info['audio']['bitrate']  = $info['quicktime']['audio']['bitrate']  = $info['audio']['channels'] * $info['audio']['bits_per_sample'] * $info['audio']['sample_rate'];
880												break;
881											default:
882												$info['audio']['lossless'] = false;
883												break;
884										}
885										break;
886								}
887								break;
888
889							default:
890								switch ($atom_structure['sample_description_table'][$i]['data_format']) {
891									case 'mp4s':
892										$info['fileformat'] = 'mp4';
893										break;
894
895									default:
896										// video atom
897										$atom_structure['sample_description_table'][$i]['video_temporal_quality']  =   getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'],  8,  4));
898										$atom_structure['sample_description_table'][$i]['video_spatial_quality']   =   getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'], 12,  4));
899										$atom_structure['sample_description_table'][$i]['video_frame_width']       =   getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'], 16,  2));
900										$atom_structure['sample_description_table'][$i]['video_frame_height']      =   getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'], 18,  2));
901										$atom_structure['sample_description_table'][$i]['video_resolution_x']      = getid3_lib::FixedPoint16_16(substr($atom_structure['sample_description_table'][$i]['data'], 20,  4));
902										$atom_structure['sample_description_table'][$i]['video_resolution_y']      = getid3_lib::FixedPoint16_16(substr($atom_structure['sample_description_table'][$i]['data'], 24,  4));
903										$atom_structure['sample_description_table'][$i]['video_data_size']         =   getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'], 28,  4));
904										$atom_structure['sample_description_table'][$i]['video_frame_count']       =   getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'], 32,  2));
905										$atom_structure['sample_description_table'][$i]['video_encoder_name_len']  =   getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'], 34,  1));
906										$atom_structure['sample_description_table'][$i]['video_encoder_name']      =                             substr($atom_structure['sample_description_table'][$i]['data'], 35, $atom_structure['sample_description_table'][$i]['video_encoder_name_len']);
907										$atom_structure['sample_description_table'][$i]['video_pixel_color_depth'] =   getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'], 66,  2));
908										$atom_structure['sample_description_table'][$i]['video_color_table_id']    =   getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'], 68,  2));
909
910										$atom_structure['sample_description_table'][$i]['video_pixel_color_type']  = (($atom_structure['sample_description_table'][$i]['video_pixel_color_depth'] > 32) ? 'grayscale' : 'color');
911										$atom_structure['sample_description_table'][$i]['video_pixel_color_name']  = $this->QuicktimeColorNameLookup($atom_structure['sample_description_table'][$i]['video_pixel_color_depth']);
912
913										if ($atom_structure['sample_description_table'][$i]['video_pixel_color_name'] != 'invalid') {
914											$info['quicktime']['video']['codec_fourcc']        = $atom_structure['sample_description_table'][$i]['data_format'];
915											$info['quicktime']['video']['codec_fourcc_lookup'] = $this->QuicktimeVideoCodecLookup($atom_structure['sample_description_table'][$i]['data_format']);
916											$info['quicktime']['video']['codec']               = (($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']);
917											$info['quicktime']['video']['color_depth']         = $atom_structure['sample_description_table'][$i]['video_pixel_color_depth'];
918											$info['quicktime']['video']['color_depth_name']    = $atom_structure['sample_description_table'][$i]['video_pixel_color_name'];
919
920											$info['video']['codec']           = $info['quicktime']['video']['codec'];
921											$info['video']['bits_per_sample'] = $info['quicktime']['video']['color_depth'];
922										}
923										$info['video']['lossless']           = false;
924										$info['video']['pixel_aspect_ratio'] = (float) 1;
925										break;
926								}
927								break;
928						}
929						switch (strtolower($atom_structure['sample_description_table'][$i]['data_format'])) {
930							case 'mp4a':
931								$info['audio']['dataformat']         = 'mp4';
932								$info['quicktime']['audio']['codec'] = 'mp4';
933								break;
934
935							case '3ivx':
936							case '3iv1':
937							case '3iv2':
938								$info['video']['dataformat'] = '3ivx';
939								break;
940
941							case 'xvid':
942								$info['video']['dataformat'] = 'xvid';
943								break;
944
945							case 'mp4v':
946								$info['video']['dataformat'] = 'mpeg4';
947								break;
948
949							case 'divx':
950							case 'div1':
951							case 'div2':
952							case 'div3':
953							case 'div4':
954							case 'div5':
955							case 'div6':
956								$info['video']['dataformat'] = 'divx';
957								break;
958
959							default:
960								// do nothing
961								break;
962						}
963						unset($atom_structure['sample_description_table'][$i]['data']);
964					}
965					break;
966
967
968				case 'stts': // Sample Table Time-to-Sample atom
969					$atom_structure['version']        = getid3_lib::BigEndian2Int(substr($atom_data,  0, 1));
970					$atom_structure['flags_raw']      = getid3_lib::BigEndian2Int(substr($atom_data,  1, 3)); // hardcoded: 0x0000
971					$atom_structure['number_entries'] = getid3_lib::BigEndian2Int(substr($atom_data,  4, 4));
972					$sttsEntriesDataOffset = 8;
973					//$FrameRateCalculatorArray = array();
974					$frames_count = 0;
975
976					$max_stts_entries_to_scan = ($info['php_memory_limit'] ? min(floor($this->getid3->memory_limit / 10000), $atom_structure['number_entries']) : $atom_structure['number_entries']);
977					if ($max_stts_entries_to_scan < $atom_structure['number_entries']) {
978						$this->warning('QuickTime atom "stts" has '.$atom_structure['number_entries'].' but only scanning the first '.$max_stts_entries_to_scan.' entries due to limited PHP memory available ('.floor($this->getid3->memory_limit / 1048576).'MB).');
979					}
980					for ($i = 0; $i < $max_stts_entries_to_scan; $i++) {
981						$atom_structure['time_to_sample_table'][$i]['sample_count']    = getid3_lib::BigEndian2Int(substr($atom_data, $sttsEntriesDataOffset, 4));
982						$sttsEntriesDataOffset += 4;
983						$atom_structure['time_to_sample_table'][$i]['sample_duration'] = getid3_lib::BigEndian2Int(substr($atom_data, $sttsEntriesDataOffset, 4));
984						$sttsEntriesDataOffset += 4;
985
986						$frames_count += $atom_structure['time_to_sample_table'][$i]['sample_count'];
987
988						// THIS SECTION REPLACED WITH CODE IN "stbl" ATOM
989						//if (!empty($info['quicktime']['time_scale']) && ($atom_structure['time_to_sample_table'][$i]['sample_duration'] > 0)) {
990						//	$stts_new_framerate = $info['quicktime']['time_scale'] / $atom_structure['time_to_sample_table'][$i]['sample_duration'];
991						//	if ($stts_new_framerate <= 60) {
992						//		// some atoms have durations of "1" giving a very large framerate, which probably is not right
993						//		$info['video']['frame_rate'] = max($info['video']['frame_rate'], $stts_new_framerate);
994						//	}
995						//}
996						//
997						//$FrameRateCalculatorArray[($info['quicktime']['time_scale'] / $atom_structure['time_to_sample_table'][$i]['sample_duration'])] += $atom_structure['time_to_sample_table'][$i]['sample_count'];
998					}
999					$info['quicktime']['stts_framecount'][] = $frames_count;
1000					//$sttsFramesTotal  = 0;
1001					//$sttsSecondsTotal = 0;
1002					//foreach ($FrameRateCalculatorArray as $frames_per_second => $frame_count) {
1003					//	if (($frames_per_second > 60) || ($frames_per_second < 1)) {
1004					//		// not video FPS information, probably audio information
1005					//		$sttsFramesTotal  = 0;
1006					//		$sttsSecondsTotal = 0;
1007					//		break;
1008					//	}
1009					//	$sttsFramesTotal  += $frame_count;
1010					//	$sttsSecondsTotal += $frame_count / $frames_per_second;
1011					//}
1012					//if (($sttsFramesTotal > 0) && ($sttsSecondsTotal > 0)) {
1013					//	if (($sttsFramesTotal / $sttsSecondsTotal) > $info['video']['frame_rate']) {
1014					//		$info['video']['frame_rate'] = $sttsFramesTotal / $sttsSecondsTotal;
1015					//	}
1016					//}
1017					break;
1018
1019
1020				case 'stss': // Sample Table Sync Sample (key frames) atom
1021					if ($ParseAllPossibleAtoms) {
1022						$atom_structure['version']        = getid3_lib::BigEndian2Int(substr($atom_data,  0, 1));
1023						$atom_structure['flags_raw']      = getid3_lib::BigEndian2Int(substr($atom_data,  1, 3)); // hardcoded: 0x0000
1024						$atom_structure['number_entries'] = getid3_lib::BigEndian2Int(substr($atom_data,  4, 4));
1025						$stssEntriesDataOffset = 8;
1026						for ($i = 0; $i < $atom_structure['number_entries']; $i++) {
1027							$atom_structure['time_to_sample_table'][$i] = getid3_lib::BigEndian2Int(substr($atom_data, $stssEntriesDataOffset, 4));
1028							$stssEntriesDataOffset += 4;
1029						}
1030					}
1031					break;
1032
1033
1034				case 'stsc': // Sample Table Sample-to-Chunk atom
1035					if ($ParseAllPossibleAtoms) {
1036						$atom_structure['version']        = getid3_lib::BigEndian2Int(substr($atom_data,  0, 1));
1037						$atom_structure['flags_raw']      = getid3_lib::BigEndian2Int(substr($atom_data,  1, 3)); // hardcoded: 0x0000
1038						$atom_structure['number_entries'] = getid3_lib::BigEndian2Int(substr($atom_data,  4, 4));
1039						$stscEntriesDataOffset = 8;
1040						for ($i = 0; $i < $atom_structure['number_entries']; $i++) {
1041							$atom_structure['sample_to_chunk_table'][$i]['first_chunk']        = getid3_lib::BigEndian2Int(substr($atom_data, $stscEntriesDataOffset, 4));
1042							$stscEntriesDataOffset += 4;
1043							$atom_structure['sample_to_chunk_table'][$i]['samples_per_chunk']  = getid3_lib::BigEndian2Int(substr($atom_data, $stscEntriesDataOffset, 4));
1044							$stscEntriesDataOffset += 4;
1045							$atom_structure['sample_to_chunk_table'][$i]['sample_description'] = getid3_lib::BigEndian2Int(substr($atom_data, $stscEntriesDataOffset, 4));
1046							$stscEntriesDataOffset += 4;
1047						}
1048					}
1049					break;
1050
1051
1052				case 'stsz': // Sample Table SiZe atom
1053					if ($ParseAllPossibleAtoms) {
1054						$atom_structure['version']        = getid3_lib::BigEndian2Int(substr($atom_data,  0, 1));
1055						$atom_structure['flags_raw']      = getid3_lib::BigEndian2Int(substr($atom_data,  1, 3)); // hardcoded: 0x0000
1056						$atom_structure['sample_size']    = getid3_lib::BigEndian2Int(substr($atom_data,  4, 4));
1057						$atom_structure['number_entries'] = getid3_lib::BigEndian2Int(substr($atom_data,  8, 4));
1058						$stszEntriesDataOffset = 12;
1059						if ($atom_structure['sample_size'] == 0) {
1060							for ($i = 0; $i < $atom_structure['number_entries']; $i++) {
1061								$atom_structure['sample_size_table'][$i] = getid3_lib::BigEndian2Int(substr($atom_data, $stszEntriesDataOffset, 4));
1062								$stszEntriesDataOffset += 4;
1063							}
1064						}
1065					}
1066					break;
1067
1068
1069				case 'stco': // Sample Table Chunk Offset atom
1070//					if (true) {
1071					if ($ParseAllPossibleAtoms) {
1072						$atom_structure['version']        = getid3_lib::BigEndian2Int(substr($atom_data,  0, 1));
1073						$atom_structure['flags_raw']      = getid3_lib::BigEndian2Int(substr($atom_data,  1, 3)); // hardcoded: 0x0000
1074						$atom_structure['number_entries'] = getid3_lib::BigEndian2Int(substr($atom_data,  4, 4));
1075						$stcoEntriesDataOffset = 8;
1076						for ($i = 0; $i < $atom_structure['number_entries']; $i++) {
1077							$atom_structure['chunk_offset_table'][$i] = getid3_lib::BigEndian2Int(substr($atom_data, $stcoEntriesDataOffset, 4));
1078							$stcoEntriesDataOffset += 4;
1079						}
1080					}
1081					break;
1082
1083
1084				case 'co64': // Chunk Offset 64-bit (version of "stco" that supports > 2GB files)
1085					if ($ParseAllPossibleAtoms) {
1086						$atom_structure['version']        = getid3_lib::BigEndian2Int(substr($atom_data,  0, 1));
1087						$atom_structure['flags_raw']      = getid3_lib::BigEndian2Int(substr($atom_data,  1, 3)); // hardcoded: 0x0000
1088						$atom_structure['number_entries'] = getid3_lib::BigEndian2Int(substr($atom_data,  4, 4));
1089						$stcoEntriesDataOffset = 8;
1090						for ($i = 0; $i < $atom_structure['number_entries']; $i++) {
1091							$atom_structure['chunk_offset_table'][$i] = getid3_lib::BigEndian2Int(substr($atom_data, $stcoEntriesDataOffset, 8));
1092							$stcoEntriesDataOffset += 8;
1093						}
1094					}
1095					break;
1096
1097
1098				case 'dref': // Data REFerence atom
1099					$atom_structure['version']        = getid3_lib::BigEndian2Int(substr($atom_data,  0, 1));
1100					$atom_structure['flags_raw']      = getid3_lib::BigEndian2Int(substr($atom_data,  1, 3)); // hardcoded: 0x0000
1101					$atom_structure['number_entries'] = getid3_lib::BigEndian2Int(substr($atom_data,  4, 4));
1102					$drefDataOffset = 8;
1103					for ($i = 0; $i < $atom_structure['number_entries']; $i++) {
1104						$atom_structure['data_references'][$i]['size']                    = getid3_lib::BigEndian2Int(substr($atom_data, $drefDataOffset, 4));
1105						$drefDataOffset += 4;
1106						$atom_structure['data_references'][$i]['type']                    =                           substr($atom_data, $drefDataOffset, 4);
1107						$drefDataOffset += 4;
1108						$atom_structure['data_references'][$i]['version']                 = getid3_lib::BigEndian2Int(substr($atom_data,  $drefDataOffset, 1));
1109						$drefDataOffset += 1;
1110						$atom_structure['data_references'][$i]['flags_raw']               = getid3_lib::BigEndian2Int(substr($atom_data,  $drefDataOffset, 3)); // hardcoded: 0x0000
1111						$drefDataOffset += 3;
1112						$atom_structure['data_references'][$i]['data']                    =                           substr($atom_data, $drefDataOffset, ($atom_structure['data_references'][$i]['size'] - 4 - 4 - 1 - 3));
1113						$drefDataOffset += ($atom_structure['data_references'][$i]['size'] - 4 - 4 - 1 - 3);
1114
1115						$atom_structure['data_references'][$i]['flags']['self_reference'] = (bool) ($atom_structure['data_references'][$i]['flags_raw'] & 0x001);
1116					}
1117					break;
1118
1119
1120				case 'gmin': // base Media INformation atom
1121					$atom_structure['version']                = getid3_lib::BigEndian2Int(substr($atom_data,  0, 1));
1122					$atom_structure['flags_raw']              = getid3_lib::BigEndian2Int(substr($atom_data,  1, 3)); // hardcoded: 0x0000
1123					$atom_structure['graphics_mode']          = getid3_lib::BigEndian2Int(substr($atom_data,  4, 2));
1124					$atom_structure['opcolor_red']            = getid3_lib::BigEndian2Int(substr($atom_data,  6, 2));
1125					$atom_structure['opcolor_green']          = getid3_lib::BigEndian2Int(substr($atom_data,  8, 2));
1126					$atom_structure['opcolor_blue']           = getid3_lib::BigEndian2Int(substr($atom_data, 10, 2));
1127					$atom_structure['balance']                = getid3_lib::BigEndian2Int(substr($atom_data, 12, 2));
1128					$atom_structure['reserved']               = getid3_lib::BigEndian2Int(substr($atom_data, 14, 2));
1129					break;
1130
1131
1132				case 'smhd': // Sound Media information HeaDer atom
1133					$atom_structure['version']                = getid3_lib::BigEndian2Int(substr($atom_data,  0, 1));
1134					$atom_structure['flags_raw']              = getid3_lib::BigEndian2Int(substr($atom_data,  1, 3)); // hardcoded: 0x0000
1135					$atom_structure['balance']                = getid3_lib::BigEndian2Int(substr($atom_data,  4, 2));
1136					$atom_structure['reserved']               = getid3_lib::BigEndian2Int(substr($atom_data,  6, 2));
1137					break;
1138
1139
1140				case 'vmhd': // Video Media information HeaDer atom
1141					$atom_structure['version']                = getid3_lib::BigEndian2Int(substr($atom_data,  0, 1));
1142					$atom_structure['flags_raw']              = getid3_lib::BigEndian2Int(substr($atom_data,  1, 3));
1143					$atom_structure['graphics_mode']          = getid3_lib::BigEndian2Int(substr($atom_data,  4, 2));
1144					$atom_structure['opcolor_red']            = getid3_lib::BigEndian2Int(substr($atom_data,  6, 2));
1145					$atom_structure['opcolor_green']          = getid3_lib::BigEndian2Int(substr($atom_data,  8, 2));
1146					$atom_structure['opcolor_blue']           = getid3_lib::BigEndian2Int(substr($atom_data, 10, 2));
1147
1148					$atom_structure['flags']['no_lean_ahead'] = (bool) ($atom_structure['flags_raw'] & 0x001);
1149					break;
1150
1151
1152				case 'hdlr': // HanDLeR reference atom
1153					$atom_structure['version']                = getid3_lib::BigEndian2Int(substr($atom_data,  0, 1));
1154					$atom_structure['flags_raw']              = getid3_lib::BigEndian2Int(substr($atom_data,  1, 3)); // hardcoded: 0x0000
1155					$atom_structure['component_type']         =                           substr($atom_data,  4, 4);
1156					$atom_structure['component_subtype']      =                           substr($atom_data,  8, 4);
1157					$atom_structure['component_manufacturer'] =                           substr($atom_data, 12, 4);
1158					$atom_structure['component_flags_raw']    = getid3_lib::BigEndian2Int(substr($atom_data, 16, 4));
1159					$atom_structure['component_flags_mask']   = getid3_lib::BigEndian2Int(substr($atom_data, 20, 4));
1160					$atom_structure['component_name']         = $this->MaybePascal2String(substr($atom_data, 24));
1161
1162					if (($atom_structure['component_subtype'] == 'STpn') && ($atom_structure['component_manufacturer'] == 'zzzz')) {
1163						$info['video']['dataformat'] = 'quicktimevr';
1164					}
1165					break;
1166
1167
1168				case 'mdhd': // MeDia HeaDer atom
1169					$atom_structure['version']               = getid3_lib::BigEndian2Int(substr($atom_data,  0, 1));
1170					$atom_structure['flags_raw']             = getid3_lib::BigEndian2Int(substr($atom_data,  1, 3)); // hardcoded: 0x0000
1171					$atom_structure['creation_time']         = getid3_lib::BigEndian2Int(substr($atom_data,  4, 4));
1172					$atom_structure['modify_time']           = getid3_lib::BigEndian2Int(substr($atom_data,  8, 4));
1173					$atom_structure['time_scale']            = getid3_lib::BigEndian2Int(substr($atom_data, 12, 4));
1174					$atom_structure['duration']              = getid3_lib::BigEndian2Int(substr($atom_data, 16, 4));
1175					$atom_structure['language_id']           = getid3_lib::BigEndian2Int(substr($atom_data, 20, 2));
1176					$atom_structure['quality']               = getid3_lib::BigEndian2Int(substr($atom_data, 22, 2));
1177
1178					if ($atom_structure['time_scale'] == 0) {
1179						$this->error('Corrupt Quicktime file: mdhd.time_scale == zero');
1180						return false;
1181					}
1182					$info['quicktime']['time_scale'] = ((isset($info['quicktime']['time_scale']) && ($info['quicktime']['time_scale'] < 1000)) ? max($info['quicktime']['time_scale'], $atom_structure['time_scale']) : $atom_structure['time_scale']);
1183
1184					$atom_structure['creation_time_unix']    = getid3_lib::DateMac2Unix($atom_structure['creation_time']);
1185					$atom_structure['modify_time_unix']      = getid3_lib::DateMac2Unix($atom_structure['modify_time']);
1186					$atom_structure['playtime_seconds']      = $atom_structure['duration'] / $atom_structure['time_scale'];
1187					$atom_structure['language']              = $this->QuicktimeLanguageLookup($atom_structure['language_id']);
1188					if (empty($info['comments']['language']) || (!in_array($atom_structure['language'], $info['comments']['language']))) {
1189						$info['comments']['language'][] = $atom_structure['language'];
1190					}
1191					$info['quicktime']['timestamps_unix']['create'][$atom_structure['hierarchy']] = $atom_structure['creation_time_unix'];
1192					$info['quicktime']['timestamps_unix']['modify'][$atom_structure['hierarchy']] = $atom_structure['modify_time_unix'];
1193					break;
1194
1195
1196				case 'pnot': // Preview atom
1197					$atom_structure['modification_date']      = getid3_lib::BigEndian2Int(substr($atom_data,  0, 4)); // "standard Macintosh format"
1198					$atom_structure['version_number']         = getid3_lib::BigEndian2Int(substr($atom_data,  4, 2)); // hardcoded: 0x00
1199					$atom_structure['atom_type']              =                           substr($atom_data,  6, 4);        // usually: 'PICT'
1200					$atom_structure['atom_index']             = getid3_lib::BigEndian2Int(substr($atom_data, 10, 2)); // usually: 0x01
1201
1202					$atom_structure['modification_date_unix'] = getid3_lib::DateMac2Unix($atom_structure['modification_date']);
1203					$info['quicktime']['timestamps_unix']['modify'][$atom_structure['hierarchy']] = $atom_structure['modification_date_unix'];
1204					break;
1205
1206
1207				case 'crgn': // Clipping ReGioN atom
1208					$atom_structure['region_size']   = getid3_lib::BigEndian2Int(substr($atom_data,  0, 2)); // The Region size, Region boundary box,
1209					$atom_structure['boundary_box']  = getid3_lib::BigEndian2Int(substr($atom_data,  2, 8)); // and Clipping region data fields
1210					$atom_structure['clipping_data'] =                           substr($atom_data, 10);           // constitute a QuickDraw region.
1211					break;
1212
1213
1214				case 'load': // track LOAD settings atom
1215					$atom_structure['preload_start_time'] = getid3_lib::BigEndian2Int(substr($atom_data,  0, 4));
1216					$atom_structure['preload_duration']   = getid3_lib::BigEndian2Int(substr($atom_data,  4, 4));
1217					$atom_structure['preload_flags_raw']  = getid3_lib::BigEndian2Int(substr($atom_data,  8, 4));
1218					$atom_structure['default_hints_raw']  = getid3_lib::BigEndian2Int(substr($atom_data, 12, 4));
1219
1220					$atom_structure['default_hints']['double_buffer'] = (bool) ($atom_structure['default_hints_raw'] & 0x0020);
1221					$atom_structure['default_hints']['high_quality']  = (bool) ($atom_structure['default_hints_raw'] & 0x0100);
1222					break;
1223
1224
1225				case 'tmcd': // TiMe CoDe atom
1226				case 'chap': // CHAPter list atom
1227				case 'sync': // SYNChronization atom
1228				case 'scpt': // tranSCriPT atom
1229				case 'ssrc': // non-primary SouRCe atom
1230					for ($i = 0; $i < strlen($atom_data); $i += 4) {
1231						@$atom_structure['track_id'][] = getid3_lib::BigEndian2Int(substr($atom_data, $i, 4));
1232					}
1233					break;
1234
1235
1236				case 'elst': // Edit LiST atom
1237					$atom_structure['version']        = getid3_lib::BigEndian2Int(substr($atom_data,  0, 1));
1238					$atom_structure['flags_raw']      = getid3_lib::BigEndian2Int(substr($atom_data,  1, 3)); // hardcoded: 0x0000
1239					$atom_structure['number_entries'] = getid3_lib::BigEndian2Int(substr($atom_data,  4, 4));
1240					for ($i = 0; $i < $atom_structure['number_entries']; $i++ ) {
1241						$atom_structure['edit_list'][$i]['track_duration'] =   getid3_lib::BigEndian2Int(substr($atom_data, 8 + ($i * 12) + 0, 4));
1242						$atom_structure['edit_list'][$i]['media_time']     =   getid3_lib::BigEndian2Int(substr($atom_data, 8 + ($i * 12) + 4, 4));
1243						$atom_structure['edit_list'][$i]['media_rate']     = getid3_lib::FixedPoint16_16(substr($atom_data, 8 + ($i * 12) + 8, 4));
1244					}
1245					break;
1246
1247
1248				case 'kmat': // compressed MATte atom
1249					$atom_structure['version']        = getid3_lib::BigEndian2Int(substr($atom_data,  0, 1));
1250					$atom_structure['flags_raw']      = getid3_lib::BigEndian2Int(substr($atom_data,  1, 3)); // hardcoded: 0x0000
1251					$atom_structure['matte_data_raw'] =               substr($atom_data,  4);
1252					break;
1253
1254
1255				case 'ctab': // Color TABle atom
1256					$atom_structure['color_table_seed']   = getid3_lib::BigEndian2Int(substr($atom_data,  0, 4)); // hardcoded: 0x00000000
1257					$atom_structure['color_table_flags']  = getid3_lib::BigEndian2Int(substr($atom_data,  4, 2)); // hardcoded: 0x8000
1258					$atom_structure['color_table_size']   = getid3_lib::BigEndian2Int(substr($atom_data,  6, 2)) + 1;
1259					for ($colortableentry = 0; $colortableentry < $atom_structure['color_table_size']; $colortableentry++) {
1260						$atom_structure['color_table'][$colortableentry]['alpha'] = getid3_lib::BigEndian2Int(substr($atom_data, 8 + ($colortableentry * 8) + 0, 2));
1261						$atom_structure['color_table'][$colortableentry]['red']   = getid3_lib::BigEndian2Int(substr($atom_data, 8 + ($colortableentry * 8) + 2, 2));
1262						$atom_structure['color_table'][$colortableentry]['green'] = getid3_lib::BigEndian2Int(substr($atom_data, 8 + ($colortableentry * 8) + 4, 2));
1263						$atom_structure['color_table'][$colortableentry]['blue']  = getid3_lib::BigEndian2Int(substr($atom_data, 8 + ($colortableentry * 8) + 6, 2));
1264					}
1265					break;
1266
1267
1268				case 'mvhd': // MoVie HeaDer atom
1269					$atom_structure['version']            =   getid3_lib::BigEndian2Int(substr($atom_data,  0, 1));
1270					$atom_structure['flags_raw']          =   getid3_lib::BigEndian2Int(substr($atom_data,  1, 3));
1271					$atom_structure['creation_time']      =   getid3_lib::BigEndian2Int(substr($atom_data,  4, 4));
1272					$atom_structure['modify_time']        =   getid3_lib::BigEndian2Int(substr($atom_data,  8, 4));
1273					$atom_structure['time_scale']         =   getid3_lib::BigEndian2Int(substr($atom_data, 12, 4));
1274					$atom_structure['duration']           =   getid3_lib::BigEndian2Int(substr($atom_data, 16, 4));
1275					$atom_structure['preferred_rate']     = getid3_lib::FixedPoint16_16(substr($atom_data, 20, 4));
1276					$atom_structure['preferred_volume']   =   getid3_lib::FixedPoint8_8(substr($atom_data, 24, 2));
1277					$atom_structure['reserved']           =                             substr($atom_data, 26, 10);
1278					$atom_structure['matrix_a']           = getid3_lib::FixedPoint16_16(substr($atom_data, 36, 4));
1279					$atom_structure['matrix_b']           = getid3_lib::FixedPoint16_16(substr($atom_data, 40, 4));
1280					$atom_structure['matrix_u']           =  getid3_lib::FixedPoint2_30(substr($atom_data, 44, 4));
1281					$atom_structure['matrix_c']           = getid3_lib::FixedPoint16_16(substr($atom_data, 48, 4));
1282					$atom_structure['matrix_d']           = getid3_lib::FixedPoint16_16(substr($atom_data, 52, 4));
1283					$atom_structure['matrix_v']           =  getid3_lib::FixedPoint2_30(substr($atom_data, 56, 4));
1284					$atom_structure['matrix_x']           = getid3_lib::FixedPoint16_16(substr($atom_data, 60, 4));
1285					$atom_structure['matrix_y']           = getid3_lib::FixedPoint16_16(substr($atom_data, 64, 4));
1286					$atom_structure['matrix_w']           =  getid3_lib::FixedPoint2_30(substr($atom_data, 68, 4));
1287					$atom_structure['preview_time']       =   getid3_lib::BigEndian2Int(substr($atom_data, 72, 4));
1288					$atom_structure['preview_duration']   =   getid3_lib::BigEndian2Int(substr($atom_data, 76, 4));
1289					$atom_structure['poster_time']        =   getid3_lib::BigEndian2Int(substr($atom_data, 80, 4));
1290					$atom_structure['selection_time']     =   getid3_lib::BigEndian2Int(substr($atom_data, 84, 4));
1291					$atom_structure['selection_duration'] =   getid3_lib::BigEndian2Int(substr($atom_data, 88, 4));
1292					$atom_structure['current_time']       =   getid3_lib::BigEndian2Int(substr($atom_data, 92, 4));
1293					$atom_structure['next_track_id']      =   getid3_lib::BigEndian2Int(substr($atom_data, 96, 4));
1294
1295					if ($atom_structure['time_scale'] == 0) {
1296						$this->error('Corrupt Quicktime file: mvhd.time_scale == zero');
1297						return false;
1298					}
1299					$atom_structure['creation_time_unix']        = getid3_lib::DateMac2Unix($atom_structure['creation_time']);
1300					$atom_structure['modify_time_unix']          = getid3_lib::DateMac2Unix($atom_structure['modify_time']);
1301					$info['quicktime']['timestamps_unix']['create'][$atom_structure['hierarchy']] = $atom_structure['creation_time_unix'];
1302					$info['quicktime']['timestamps_unix']['modify'][$atom_structure['hierarchy']] = $atom_structure['modify_time_unix'];
1303					$info['quicktime']['time_scale']    = ((isset($info['quicktime']['time_scale']) && ($info['quicktime']['time_scale'] < 1000)) ? max($info['quicktime']['time_scale'], $atom_structure['time_scale']) : $atom_structure['time_scale']);
1304					$info['quicktime']['display_scale'] = $atom_structure['matrix_a'];
1305					$info['playtime_seconds']           = $atom_structure['duration'] / $atom_structure['time_scale'];
1306					break;
1307
1308
1309				case 'tkhd': // TracK HeaDer atom
1310					$atom_structure['version']             =   getid3_lib::BigEndian2Int(substr($atom_data,  0, 1));
1311					$atom_structure['flags_raw']           =   getid3_lib::BigEndian2Int(substr($atom_data,  1, 3));
1312					$atom_structure['creation_time']       =   getid3_lib::BigEndian2Int(substr($atom_data,  4, 4));
1313					$atom_structure['modify_time']         =   getid3_lib::BigEndian2Int(substr($atom_data,  8, 4));
1314					$atom_structure['trackid']             =   getid3_lib::BigEndian2Int(substr($atom_data, 12, 4));
1315					$atom_structure['reserved1']           =   getid3_lib::BigEndian2Int(substr($atom_data, 16, 4));
1316					$atom_structure['duration']            =   getid3_lib::BigEndian2Int(substr($atom_data, 20, 4));
1317					$atom_structure['reserved2']           =   getid3_lib::BigEndian2Int(substr($atom_data, 24, 8));
1318					$atom_structure['layer']               =   getid3_lib::BigEndian2Int(substr($atom_data, 32, 2));
1319					$atom_structure['alternate_group']     =   getid3_lib::BigEndian2Int(substr($atom_data, 34, 2));
1320					$atom_structure['volume']              =   getid3_lib::FixedPoint8_8(substr($atom_data, 36, 2));
1321					$atom_structure['reserved3']           =   getid3_lib::BigEndian2Int(substr($atom_data, 38, 2));
1322					// http://developer.apple.com/library/mac/#documentation/QuickTime/RM/MovieBasics/MTEditing/K-Chapter/11MatrixFunctions.html
1323					// http://developer.apple.com/library/mac/#documentation/QuickTime/qtff/QTFFChap4/qtff4.html#//apple_ref/doc/uid/TP40000939-CH206-18737
1324					$atom_structure['matrix_a']            = getid3_lib::FixedPoint16_16(substr($atom_data, 40, 4));
1325					$atom_structure['matrix_b']            = getid3_lib::FixedPoint16_16(substr($atom_data, 44, 4));
1326					$atom_structure['matrix_u']            =  getid3_lib::FixedPoint2_30(substr($atom_data, 48, 4));
1327					$atom_structure['matrix_c']            = getid3_lib::FixedPoint16_16(substr($atom_data, 52, 4));
1328					$atom_structure['matrix_d']            = getid3_lib::FixedPoint16_16(substr($atom_data, 56, 4));
1329					$atom_structure['matrix_v']            =  getid3_lib::FixedPoint2_30(substr($atom_data, 60, 4));
1330					$atom_structure['matrix_x']            = getid3_lib::FixedPoint16_16(substr($atom_data, 64, 4));
1331					$atom_structure['matrix_y']            = getid3_lib::FixedPoint16_16(substr($atom_data, 68, 4));
1332					$atom_structure['matrix_w']            =  getid3_lib::FixedPoint2_30(substr($atom_data, 72, 4));
1333					$atom_structure['width']               = getid3_lib::FixedPoint16_16(substr($atom_data, 76, 4));
1334					$atom_structure['height']              = getid3_lib::FixedPoint16_16(substr($atom_data, 80, 4));
1335					$atom_structure['flags']['enabled']    = (bool) ($atom_structure['flags_raw'] & 0x0001);
1336					$atom_structure['flags']['in_movie']   = (bool) ($atom_structure['flags_raw'] & 0x0002);
1337					$atom_structure['flags']['in_preview'] = (bool) ($atom_structure['flags_raw'] & 0x0004);
1338					$atom_structure['flags']['in_poster']  = (bool) ($atom_structure['flags_raw'] & 0x0008);
1339					$atom_structure['creation_time_unix']  = getid3_lib::DateMac2Unix($atom_structure['creation_time']);
1340					$atom_structure['modify_time_unix']    = getid3_lib::DateMac2Unix($atom_structure['modify_time']);
1341					$info['quicktime']['timestamps_unix']['create'][$atom_structure['hierarchy']] = $atom_structure['creation_time_unix'];
1342					$info['quicktime']['timestamps_unix']['modify'][$atom_structure['hierarchy']] = $atom_structure['modify_time_unix'];
1343
1344					// https://www.getid3.org/phpBB3/viewtopic.php?t=1908
1345					// attempt to compute rotation from matrix values
1346					// 2017-Dec-28: uncertain if 90/270 are correctly oriented; values returned by FixedPoint16_16 should perhaps be -1 instead of 65535(?)
1347					$matrixRotation = 0;
1348					switch ($atom_structure['matrix_a'].':'.$atom_structure['matrix_b'].':'.$atom_structure['matrix_c'].':'.$atom_structure['matrix_d']) {
1349						case '1:0:0:1':         $matrixRotation =   0; break;
1350						case '0:1:65535:0':     $matrixRotation =  90; break;
1351						case '65535:0:0:65535': $matrixRotation = 180; break;
1352						case '0:65535:1:0':     $matrixRotation = 270; break;
1353						default: break;
1354					}
1355
1356					// https://www.getid3.org/phpBB3/viewtopic.php?t=2468
1357					// The rotation matrix can appear in the Quicktime file multiple times, at least once for each track,
1358					// and it's possible that only the video track (or, in theory, one of the video tracks) is flagged as
1359					// rotated while the other tracks (e.g. audio) is tagged as rotation=0 (behavior noted on iPhone 8 Plus)
1360					// The correct solution would be to check if the TrackID associated with the rotation matrix is indeed
1361					// a video track (or the main video track) and only set the rotation then, but since information about
1362					// what track is what is not trivially there to be examined, the lazy solution is to set the rotation
1363					// if it is found to be nonzero, on the assumption that tracks that don't need it will have rotation set
1364					// to zero (and be effectively ignored) and the video track will have rotation set correctly, which will
1365					// either be zero and automatically correct, or nonzero and be set correctly.
1366					if (!isset($info['video']['rotate']) || (($info['video']['rotate'] == 0) && ($matrixRotation > 0))) {
1367						$info['quicktime']['video']['rotate'] = $info['video']['rotate'] = $matrixRotation;
1368					}
1369
1370					if ($atom_structure['flags']['enabled'] == 1) {
1371						if (!isset($info['video']['resolution_x']) || !isset($info['video']['resolution_y'])) {
1372							$info['video']['resolution_x'] = $atom_structure['width'];
1373							$info['video']['resolution_y'] = $atom_structure['height'];
1374						}
1375						$info['video']['resolution_x'] = max($info['video']['resolution_x'], $atom_structure['width']);
1376						$info['video']['resolution_y'] = max($info['video']['resolution_y'], $atom_structure['height']);
1377						$info['quicktime']['video']['resolution_x'] = $info['video']['resolution_x'];
1378						$info['quicktime']['video']['resolution_y'] = $info['video']['resolution_y'];
1379					} else {
1380						// see: https://www.getid3.org/phpBB3/viewtopic.php?t=1295
1381						//if (isset($info['video']['resolution_x'])) { unset($info['video']['resolution_x']); }
1382						//if (isset($info['video']['resolution_y'])) { unset($info['video']['resolution_y']); }
1383						//if (isset($info['quicktime']['video']))    { unset($info['quicktime']['video']);    }
1384					}
1385					break;
1386
1387
1388				case 'iods': // Initial Object DeScriptor atom
1389					// http://www.koders.com/c/fid1FAB3E762903DC482D8A246D4A4BF9F28E049594.aspx?s=windows.h
1390					// http://libquicktime.sourcearchive.com/documentation/1.0.2plus-pdebian/iods_8c-source.html
1391					$offset = 0;
1392					$atom_structure['version']                =       getid3_lib::BigEndian2Int(substr($atom_data, $offset, 1));
1393					$offset += 1;
1394					$atom_structure['flags_raw']              =       getid3_lib::BigEndian2Int(substr($atom_data, $offset, 3));
1395					$offset += 3;
1396					$atom_structure['mp4_iod_tag']            =       getid3_lib::BigEndian2Int(substr($atom_data, $offset, 1));
1397					$offset += 1;
1398					$atom_structure['length']                 = $this->quicktime_read_mp4_descr_length($atom_data, $offset);
1399					//$offset already adjusted by quicktime_read_mp4_descr_length()
1400					$atom_structure['object_descriptor_id']   =       getid3_lib::BigEndian2Int(substr($atom_data, $offset, 2));
1401					$offset += 2;
1402					$atom_structure['od_profile_level']       =       getid3_lib::BigEndian2Int(substr($atom_data, $offset, 1));
1403					$offset += 1;
1404					$atom_structure['scene_profile_level']    =       getid3_lib::BigEndian2Int(substr($atom_data, $offset, 1));
1405					$offset += 1;
1406					$atom_structure['audio_profile_id']       =       getid3_lib::BigEndian2Int(substr($atom_data, $offset, 1));
1407					$offset += 1;
1408					$atom_structure['video_profile_id']       =       getid3_lib::BigEndian2Int(substr($atom_data, $offset, 1));
1409					$offset += 1;
1410					$atom_structure['graphics_profile_level'] =       getid3_lib::BigEndian2Int(substr($atom_data, $offset, 1));
1411					$offset += 1;
1412
1413					$atom_structure['num_iods_tracks'] = ($atom_structure['length'] - 7) / 6; // 6 bytes would only be right if all tracks use 1-byte length fields
1414					for ($i = 0; $i < $atom_structure['num_iods_tracks']; $i++) {
1415						$atom_structure['track'][$i]['ES_ID_IncTag'] =       getid3_lib::BigEndian2Int(substr($atom_data, $offset, 1));
1416						$offset += 1;
1417						$atom_structure['track'][$i]['length']       = $this->quicktime_read_mp4_descr_length($atom_data, $offset);
1418						//$offset already adjusted by quicktime_read_mp4_descr_length()
1419						$atom_structure['track'][$i]['track_id']     =       getid3_lib::BigEndian2Int(substr($atom_data, $offset, 4));
1420						$offset += 4;
1421					}
1422
1423					$atom_structure['audio_profile_name'] = $this->QuicktimeIODSaudioProfileName($atom_structure['audio_profile_id']);
1424					$atom_structure['video_profile_name'] = $this->QuicktimeIODSvideoProfileName($atom_structure['video_profile_id']);
1425					break;
1426
1427				case 'ftyp': // FileTYPe (?) atom (for MP4 it seems)
1428					$atom_structure['signature'] =                           substr($atom_data,  0, 4);
1429					$atom_structure['unknown_1'] = getid3_lib::BigEndian2Int(substr($atom_data,  4, 4));
1430					$atom_structure['fourcc']    =                           substr($atom_data,  8, 4);
1431					break;
1432
1433				case 'mdat': // Media DATa atom
1434					// 'mdat' contains the actual data for the audio/video, possibly also subtitles
1435
1436	/* 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 */
1437
1438					// first, skip any 'wide' padding, and second 'mdat' header (with specified size of zero?)
1439					$mdat_offset = 0;
1440					while (true) {
1441						if (substr($atom_data, $mdat_offset, 8) == "\x00\x00\x00\x08".'wide') {
1442							$mdat_offset += 8;
1443						} elseif (substr($atom_data, $mdat_offset, 8) == "\x00\x00\x00\x00".'mdat') {
1444							$mdat_offset += 8;
1445						} else {
1446							break;
1447						}
1448					}
1449					if (substr($atom_data, $mdat_offset, 4) == 'GPRO') {
1450						$GOPRO_chunk_length = getid3_lib::LittleEndian2Int(substr($atom_data, $mdat_offset + 4, 4));
1451						$GOPRO_offset = 8;
1452						$atom_structure['GPRO']['raw'] = substr($atom_data, $mdat_offset + 8, $GOPRO_chunk_length - 8);
1453						$atom_structure['GPRO']['firmware'] = substr($atom_structure['GPRO']['raw'],  0, 15);
1454						$atom_structure['GPRO']['unknown1'] = substr($atom_structure['GPRO']['raw'], 15, 16);
1455						$atom_structure['GPRO']['unknown2'] = substr($atom_structure['GPRO']['raw'], 31, 32);
1456						$atom_structure['GPRO']['unknown3'] = substr($atom_structure['GPRO']['raw'], 63, 16);
1457						$atom_structure['GPRO']['camera']   = substr($atom_structure['GPRO']['raw'], 79, 32);
1458						$info['quicktime']['camera']['model'] = rtrim($atom_structure['GPRO']['camera'], "\x00");
1459					}
1460
1461					// check to see if it looks like chapter titles, in the form of unterminated strings with a leading 16-bit size field
1462					while (($mdat_offset < (strlen($atom_data) - 8))
1463						&& ($chapter_string_length = getid3_lib::BigEndian2Int(substr($atom_data, $mdat_offset, 2)))
1464						&& ($chapter_string_length < 1000)
1465						&& ($chapter_string_length <= (strlen($atom_data) - $mdat_offset - 2))
1466						&& preg_match('#^([\x00-\xFF]{2})([\x20-\xFF]+)$#', substr($atom_data, $mdat_offset, $chapter_string_length + 2), $chapter_matches)) {
1467							list($dummy, $chapter_string_length_hex, $chapter_string) = $chapter_matches;
1468							$mdat_offset += (2 + $chapter_string_length);
1469							@$info['quicktime']['comments']['chapters'][] = $chapter_string;
1470
1471							// "encd" atom specifies encoding. In theory could be anything, almost always UTF-8, but may be UTF-16 with BOM (not currently handled)
1472							if (substr($atom_data, $mdat_offset, 12) == "\x00\x00\x00\x0C\x65\x6E\x63\x64\x00\x00\x01\x00") { // UTF-8
1473								$mdat_offset += 12;
1474							}
1475					}
1476
1477					if (($atomsize > 8) && (!isset($info['avdataend_tmp']) || ($info['quicktime'][$atomname]['size'] > ($info['avdataend_tmp'] - $info['avdataoffset'])))) {
1478
1479						$info['avdataoffset'] = $atom_structure['offset'] + 8;                       // $info['quicktime'][$atomname]['offset'] + 8;
1480						$OldAVDataEnd         = $info['avdataend'];
1481						$info['avdataend']    = $atom_structure['offset'] + $atom_structure['size']; // $info['quicktime'][$atomname]['offset'] + $info['quicktime'][$atomname]['size'];
1482
1483						$getid3_temp = new getID3();
1484						$getid3_temp->openfile($this->getid3->filename, $this->getid3->info['filesize'], $this->getid3->fp);
1485						$getid3_temp->info['avdataoffset'] = $info['avdataoffset'];
1486						$getid3_temp->info['avdataend']    = $info['avdataend'];
1487						$getid3_mp3 = new getid3_mp3($getid3_temp);
1488						if ($getid3_mp3->MPEGaudioHeaderValid($getid3_mp3->MPEGaudioHeaderDecode($this->fread(4)))) {
1489							$getid3_mp3->getOnlyMPEGaudioInfo($getid3_temp->info['avdataoffset'], false);
1490							if (!empty($getid3_temp->info['warning'])) {
1491								foreach ($getid3_temp->info['warning'] as $value) {
1492									$this->warning($value);
1493								}
1494							}
1495							if (!empty($getid3_temp->info['mpeg'])) {
1496								$info['mpeg'] = $getid3_temp->info['mpeg'];
1497								if (isset($info['mpeg']['audio'])) {
1498									$info['audio']['dataformat']   = 'mp3';
1499									$info['audio']['codec']        = (!empty($info['mpeg']['audio']['encoder']) ? $info['mpeg']['audio']['encoder'] : (!empty($info['mpeg']['audio']['codec']) ? $info['mpeg']['audio']['codec'] : (!empty($info['mpeg']['audio']['LAME']) ? 'LAME' :'mp3')));
1500									$info['audio']['sample_rate']  = $info['mpeg']['audio']['sample_rate'];
1501									$info['audio']['channels']     = $info['mpeg']['audio']['channels'];
1502									$info['audio']['bitrate']      = $info['mpeg']['audio']['bitrate'];
1503									$info['audio']['bitrate_mode'] = strtolower($info['mpeg']['audio']['bitrate_mode']);
1504									$info['bitrate']               = $info['audio']['bitrate'];
1505								}
1506							}
1507						}
1508						unset($getid3_mp3, $getid3_temp);
1509						$info['avdataend'] = $OldAVDataEnd;
1510						unset($OldAVDataEnd);
1511
1512					}
1513
1514					unset($mdat_offset, $chapter_string_length, $chapter_matches);
1515					break;
1516
1517				case 'free': // FREE space atom
1518				case 'skip': // SKIP atom
1519				case 'wide': // 64-bit expansion placeholder atom
1520					// 'free', 'skip' and 'wide' are just padding, contains no useful data at all
1521
1522					// When writing QuickTime files, it is sometimes necessary to update an atom's size.
1523					// It is impossible to update a 32-bit atom to a 64-bit atom since the 32-bit atom
1524					// is only 8 bytes in size, and the 64-bit atom requires 16 bytes. Therefore, QuickTime
1525					// puts an 8-byte placeholder atom before any atoms it may have to update the size of.
1526					// In this way, if the atom needs to be converted from a 32-bit to a 64-bit atom, the
1527					// placeholder atom can be overwritten to obtain the necessary 8 extra bytes.
1528					// The placeholder atom has a type of kWideAtomPlaceholderType ( 'wide' ).
1529					break;
1530
1531
1532				case 'nsav': // NoSAVe atom
1533					// http://developer.apple.com/technotes/tn/tn2038.html
1534					$atom_structure['data'] = getid3_lib::BigEndian2Int(substr($atom_data,  0, 4));
1535					break;
1536
1537				case 'ctyp': // Controller TYPe atom (seen on QTVR)
1538					// http://homepages.slingshot.co.nz/~helmboy/quicktime/formats/qtm-layout.txt
1539					// some controller names are:
1540					//   0x00 + 'std' for linear movie
1541					//   'none' for no controls
1542					$atom_structure['ctyp'] = substr($atom_data, 0, 4);
1543					$info['quicktime']['controller'] = $atom_structure['ctyp'];
1544					switch ($atom_structure['ctyp']) {
1545						case 'qtvr':
1546							$info['video']['dataformat'] = 'quicktimevr';
1547							break;
1548					}
1549					break;
1550
1551				case 'pano': // PANOrama track (seen on QTVR)
1552					$atom_structure['pano'] = getid3_lib::BigEndian2Int(substr($atom_data,  0, 4));
1553					break;
1554
1555				case 'hint': // HINT track
1556				case 'hinf': //
1557				case 'hinv': //
1558				case 'hnti': //
1559					$info['quicktime']['hinting'] = true;
1560					break;
1561
1562				case 'imgt': // IMaGe Track reference (kQTVRImageTrackRefType) (seen on QTVR)
1563					for ($i = 0; $i < ($atom_structure['size'] - 8); $i += 4) {
1564						$atom_structure['imgt'][] = getid3_lib::BigEndian2Int(substr($atom_data, $i, 4));
1565					}
1566					break;
1567
1568
1569				// Observed-but-not-handled atom types are just listed here to prevent warnings being generated
1570				case 'FXTC': // Something to do with Adobe After Effects (?)
1571				case 'PrmA':
1572				case 'code':
1573				case 'FIEL': // this is NOT "fiel" (Field Ordering) as describe here: http://developer.apple.com/documentation/QuickTime/QTFF/QTFFChap3/chapter_4_section_2.html
1574				case 'tapt': // TrackApertureModeDimensionsAID - http://developer.apple.com/documentation/QuickTime/Reference/QT7-1_Update_Reference/Constants/Constants.html
1575							// tapt seems to be used to compute the video size [https://www.getid3.org/phpBB3/viewtopic.php?t=838]
1576							// * http://lists.apple.com/archives/quicktime-api/2006/Aug/msg00014.html
1577							// * http://handbrake.fr/irclogs/handbrake-dev/handbrake-dev20080128_pg2.html
1578				case 'ctts'://  STCompositionOffsetAID             - http://developer.apple.com/documentation/QuickTime/Reference/QTRef_Constants/Reference/reference.html
1579				case 'cslg'://  STCompositionShiftLeastGreatestAID - http://developer.apple.com/documentation/QuickTime/Reference/QTRef_Constants/Reference/reference.html
1580				case 'sdtp'://  STSampleDependencyAID              - http://developer.apple.com/documentation/QuickTime/Reference/QTRef_Constants/Reference/reference.html
1581				case 'stps'://  STPartialSyncSampleAID             - http://developer.apple.com/documentation/QuickTime/Reference/QTRef_Constants/Reference/reference.html
1582					//$atom_structure['data'] = $atom_data;
1583					break;
1584
1585				case "\xA9".'xyz':  // GPS latitude+longitude+altitude
1586					$atom_structure['data'] = $atom_data;
1587					if (preg_match('#([\\+\\-][0-9\\.]+)([\\+\\-][0-9\\.]+)([\\+\\-][0-9\\.]+)?/$#i', $atom_data, $matches)) {
1588						@list($all, $latitude, $longitude, $altitude) = $matches;
1589						$info['quicktime']['comments']['gps_latitude'][]  = floatval($latitude);
1590						$info['quicktime']['comments']['gps_longitude'][] = floatval($longitude);
1591						if (!empty($altitude)) {
1592							$info['quicktime']['comments']['gps_altitude'][] = floatval($altitude);
1593						}
1594					} else {
1595						$this->warning('QuickTime atom "©xyz" data does not match expected data pattern at offset '.$baseoffset.'. Please report as getID3() bug.');
1596					}
1597					break;
1598
1599				case 'NCDT':
1600					// http://www.sno.phy.queensu.ca/~phil/exiftool/TagNames/Nikon.html
1601					// Nikon-specific QuickTime tags found in the NCDT atom of MOV videos from some Nikon cameras such as the Coolpix S8000 and D5100
1602					$atom_structure['subatoms'] = $this->QuicktimeParseContainerAtom($atom_data, $baseoffset + 4, $atomHierarchy, $ParseAllPossibleAtoms);
1603					break;
1604				case 'NCTH': // Nikon Camera THumbnail image
1605				case 'NCVW': // Nikon Camera preVieW image
1606					// http://www.sno.phy.queensu.ca/~phil/exiftool/TagNames/Nikon.html
1607					if (preg_match('/^\xFF\xD8\xFF/', $atom_data)) {
1608						$atom_structure['data'] = $atom_data;
1609						$atom_structure['image_mime'] = 'image/jpeg';
1610						$atom_structure['description'] = (($atomname == 'NCTH') ? 'Nikon Camera Thumbnail Image' : (($atomname == 'NCVW') ? 'Nikon Camera Preview Image' : 'Nikon preview image'));
1611						$info['quicktime']['comments']['picture'][] = array('image_mime'=>$atom_structure['image_mime'], 'data'=>$atom_data, 'description'=>$atom_structure['description']);
1612					}
1613					break;
1614				case 'NCTG': // Nikon - http://www.sno.phy.queensu.ca/~phil/exiftool/TagNames/Nikon.html#NCTG
1615					$atom_structure['data'] = $this->QuicktimeParseNikonNCTG($atom_data);
1616					break;
1617				case 'NCHD': // Nikon:MakerNoteVersion  - http://www.sno.phy.queensu.ca/~phil/exiftool/TagNames/Nikon.html
1618				case 'NCDB': // Nikon                   - http://www.sno.phy.queensu.ca/~phil/exiftool/TagNames/Nikon.html
1619				case 'CNCV': // Canon:CompressorVersion - http://www.sno.phy.queensu.ca/~phil/exiftool/TagNames/Canon.html
1620					$atom_structure['data'] = $atom_data;
1621					break;
1622
1623				case "\x00\x00\x00\x00":
1624					// some kind of metacontainer, may contain a big data dump such as:
1625					// 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
1626					// http://www.geocities.com/xhelmboyx/quicktime/formats/qti-layout.txt
1627
1628					$atom_structure['version']   =          getid3_lib::BigEndian2Int(substr($atom_data, 0, 1));
1629					$atom_structure['flags_raw'] =          getid3_lib::BigEndian2Int(substr($atom_data, 1, 3));
1630					$atom_structure['subatoms']  = $this->QuicktimeParseContainerAtom(substr($atom_data, 4), $baseoffset + 8, $atomHierarchy, $ParseAllPossibleAtoms);
1631					//$atom_structure['subatoms']  = $this->QuicktimeParseContainerAtom($atom_data, $baseoffset + 8, $atomHierarchy, $ParseAllPossibleAtoms);
1632					break;
1633
1634				case 'meta': // METAdata atom
1635					// https://developer.apple.com/library/mac/documentation/QuickTime/QTFF/Metadata/Metadata.html
1636
1637					$atom_structure['version']   =          getid3_lib::BigEndian2Int(substr($atom_data, 0, 1));
1638					$atom_structure['flags_raw'] =          getid3_lib::BigEndian2Int(substr($atom_data, 1, 3));
1639					$atom_structure['subatoms']  = $this->QuicktimeParseContainerAtom($atom_data, $baseoffset + 8, $atomHierarchy, $ParseAllPossibleAtoms);
1640					break;
1641
1642				case 'data': // metaDATA atom
1643					static $metaDATAkey = 1; // real ugly, but so is the QuickTime structure that stores keys and values in different multinested locations that are hard to relate to each other
1644					// seems to be 2 bytes language code (ASCII), 2 bytes unknown (set to 0x10B5 in sample I have), remainder is useful data
1645					$atom_structure['language'] =                           substr($atom_data, 4 + 0, 2);
1646					$atom_structure['unknown']  = getid3_lib::BigEndian2Int(substr($atom_data, 4 + 2, 2));
1647					$atom_structure['data']     =                           substr($atom_data, 4 + 4);
1648					$atom_structure['key_name'] = @$info['quicktime']['temp_meta_key_names'][$metaDATAkey++];
1649
1650					if ($atom_structure['key_name'] && $atom_structure['data']) {
1651						@$info['quicktime']['comments'][str_replace('com.apple.quicktime.', '', $atom_structure['key_name'])][] = $atom_structure['data'];
1652					}
1653					break;
1654
1655				case 'keys': // KEYS that may be present in the metadata atom.
1656					// https://developer.apple.com/library/mac/documentation/QuickTime/QTFF/Metadata/Metadata.html#//apple_ref/doc/uid/TP40000939-CH1-SW21
1657					// The metadata item keys atom holds a list of the metadata keys that may be present in the metadata atom.
1658					// This list is indexed starting with 1; 0 is a reserved index value. The metadata item keys atom is a full atom with an atom type of "keys".
1659					$atom_structure['version']       = getid3_lib::BigEndian2Int(substr($atom_data,  0, 1));
1660					$atom_structure['flags_raw']     = getid3_lib::BigEndian2Int(substr($atom_data,  1, 3));
1661					$atom_structure['entry_count']   = getid3_lib::BigEndian2Int(substr($atom_data,  4, 4));
1662					$keys_atom_offset = 8;
1663					for ($i = 1; $i <= $atom_structure['entry_count']; $i++) {
1664						$atom_structure['keys'][$i]['key_size']      = getid3_lib::BigEndian2Int(substr($atom_data, $keys_atom_offset + 0, 4));
1665						$atom_structure['keys'][$i]['key_namespace'] =                           substr($atom_data, $keys_atom_offset + 4, 4);
1666						$atom_structure['keys'][$i]['key_value']     =                           substr($atom_data, $keys_atom_offset + 8, $atom_structure['keys'][$i]['key_size'] - 8);
1667						$keys_atom_offset += $atom_structure['keys'][$i]['key_size']; // key_size includes the 4+4 bytes for key_size and key_namespace
1668
1669						$info['quicktime']['temp_meta_key_names'][$i] = $atom_structure['keys'][$i]['key_value'];
1670					}
1671					break;
1672
1673				case 'uuid': // user-defined atom often seen containing XML data, also used for potentially many other purposes, only a few specifically handled by getID3 (e.g. 360fly spatial data)
1674					//Get the UUID ID in first 16 bytes
1675					$uuid_bytes_read = unpack('H8time_low/H4time_mid/H4time_hi/H4clock_seq_hi/H12clock_seq_low', substr($atom_data, 0, 16));
1676					$atom_structure['uuid_field_id'] = implode('-', $uuid_bytes_read);
1677
1678					switch ($atom_structure['uuid_field_id']) {   // http://fileformats.archiveteam.org/wiki/Boxes/atoms_format#UUID_boxes
1679
1680						case '0537cdab-9d0c-4431-a72a-fa561f2a113e': // Exif                                       - http://fileformats.archiveteam.org/wiki/Exif
1681						case '2c4c0100-8504-40b9-a03e-562148d6dfeb': // Photoshop Image Resources                  - http://fileformats.archiveteam.org/wiki/Photoshop_Image_Resources
1682						case '33c7a4d2-b81d-4723-a0ba-f1a3e097ad38': // IPTC-IIM                                   - http://fileformats.archiveteam.org/wiki/IPTC-IIM
1683						case '8974dbce-7be7-4c51-84f9-7148f9882554': // PIFF Track Encryption Box                  - http://fileformats.archiveteam.org/wiki/Protected_Interoperable_File_Format
1684						case '96a9f1f1-dc98-402d-a7ae-d68e34451809': // GeoJP2 World File Box                      - http://fileformats.archiveteam.org/wiki/GeoJP2
1685						case 'a2394f52-5a9b-4f14-a244-6c427c648df4': // PIFF Sample Encryption Box                 - http://fileformats.archiveteam.org/wiki/Protected_Interoperable_File_Format
1686						case 'b14bf8bd-083d-4b43-a5ae-8cd7d5a6ce03': // GeoJP2 GeoTIFF Box                         - http://fileformats.archiveteam.org/wiki/GeoJP2
1687						case 'd08a4f18-10f3-4a82-b6c8-32d8aba183d3': // PIFF Protection System Specific Header Box - http://fileformats.archiveteam.org/wiki/Protected_Interoperable_File_Format
1688							$this->warning('Unhandled (but recognized) "uuid" atom identified by "'.$atom_structure['uuid_field_id'].'" at offset '.$atom_structure['offset'].' ('.strlen($atom_data).' bytes)');
1689							break;
1690
1691						case 'be7acfcb-97a9-42e8-9c71-999491e3afac': // XMP data (in XML format)
1692							$atom_structure['xml'] = substr($atom_data, 16, strlen($atom_data) - 16 - 8); // 16 bytes for UUID, 8 bytes header(?)
1693							break;
1694
1695						case 'efe1589a-bb77-49ef-8095-27759eb1dc6f': // 360fly data
1696							/* 360fly code in this block by Paul Lewis 2019-Oct-31 */
1697							/*	Sensor Timestamps need to be calculated using the recordings base time at ['quicktime']['moov']['subatoms'][0]['creation_time_unix']. */
1698							$atom_structure['title'] = '360Fly Sensor Data';
1699
1700							//Get the UUID HEADER data
1701							$uuid_bytes_read = unpack('vheader_size/vheader_version/vtimescale/vhardware_version/x/x/x/x/x/x/x/x/x/x/x/x/x/x/x/x/', substr($atom_data, 16, 32));
1702							$atom_structure['uuid_header'] = $uuid_bytes_read;
1703
1704							$start_byte = 48;
1705							$atom_SENSOR_data = substr($atom_data, $start_byte);
1706							$atom_structure['sensor_data']['data_type'] = array(
1707									'fusion_count'   => 0,       // ID 250
1708									'fusion_data'    => array(),
1709									'accel_count'    => 0,       // ID 1
1710									'accel_data'     => array(),
1711									'gyro_count'     => 0,       // ID 2
1712									'gyro_data'      => array(),
1713									'magno_count'    => 0,       // ID 3
1714									'magno_data'     => array(),
1715									'gps_count'      => 0,       // ID 5
1716									'gps_data'       => array(),
1717									'rotation_count' => 0,       // ID 6
1718									'rotation_data'  => array(),
1719									'unknown_count'  => 0,       // ID ??
1720									'unknown_data'   => array(),
1721									'debug_list'     => '',      // Used to debug variables stored as comma delimited strings
1722							);
1723							$debug_structure['debug_items'] = array();
1724							// Can start loop here to decode all sensor data in 32 Byte chunks:
1725							foreach (str_split($atom_SENSOR_data, 32) as $sensor_key => $sensor_data) {
1726								// This gets me a data_type code to work out what data is in the next 31 bytes.
1727								$sensor_data_type = substr($sensor_data, 0, 1);
1728								$sensor_data_content = substr($sensor_data, 1);
1729								$uuid_bytes_read = unpack('C*', $sensor_data_type);
1730								$sensor_data_array = array();
1731								switch ($uuid_bytes_read[1]) {
1732									case 250:
1733										$atom_structure['sensor_data']['data_type']['fusion_count']++;
1734										$uuid_bytes_read = unpack('cmode/Jtimestamp/Gyaw/Gpitch/Groll/x*', $sensor_data_content);
1735										$sensor_data_array['mode']      = $uuid_bytes_read['mode'];
1736										$sensor_data_array['timestamp'] = $uuid_bytes_read['timestamp'];
1737										$sensor_data_array['yaw']       = $uuid_bytes_read['yaw'];
1738										$sensor_data_array['pitch']     = $uuid_bytes_read['pitch'];
1739										$sensor_data_array['roll']      = $uuid_bytes_read['roll'];
1740										array_push($atom_structure['sensor_data']['data_type']['fusion_data'], $sensor_data_array);
1741										break;
1742									case 1:
1743										$atom_structure['sensor_data']['data_type']['accel_count']++;
1744										$uuid_bytes_read = unpack('cmode/Jtimestamp/Gyaw/Gpitch/Groll/x*', $sensor_data_content);
1745										$sensor_data_array['mode']      = $uuid_bytes_read['mode'];
1746										$sensor_data_array['timestamp'] = $uuid_bytes_read['timestamp'];
1747										$sensor_data_array['yaw']       = $uuid_bytes_read['yaw'];
1748										$sensor_data_array['pitch']     = $uuid_bytes_read['pitch'];
1749										$sensor_data_array['roll']      = $uuid_bytes_read['roll'];
1750										array_push($atom_structure['sensor_data']['data_type']['accel_data'], $sensor_data_array);
1751										break;
1752									case 2:
1753										$atom_structure['sensor_data']['data_type']['gyro_count']++;
1754										$uuid_bytes_read = unpack('cmode/Jtimestamp/Gyaw/Gpitch/Groll/x*', $sensor_data_content);
1755										$sensor_data_array['mode']      = $uuid_bytes_read['mode'];
1756										$sensor_data_array['timestamp'] = $uuid_bytes_read['timestamp'];
1757										$sensor_data_array['yaw']       = $uuid_bytes_read['yaw'];
1758										$sensor_data_array['pitch']     = $uuid_bytes_read['pitch'];
1759										$sensor_data_array['roll']      = $uuid_bytes_read['roll'];
1760										array_push($atom_structure['sensor_data']['data_type']['gyro_data'], $sensor_data_array);
1761										break;
1762									case 3:
1763										$atom_structure['sensor_data']['data_type']['magno_count']++;
1764										$uuid_bytes_read = unpack('cmode/Jtimestamp/Gmagx/Gmagy/Gmagz/x*', $sensor_data_content);
1765										$sensor_data_array['mode']      = $uuid_bytes_read['mode'];
1766										$sensor_data_array['timestamp'] = $uuid_bytes_read['timestamp'];
1767										$sensor_data_array['magx']      = $uuid_bytes_read['magx'];
1768										$sensor_data_array['magy']      = $uuid_bytes_read['magy'];
1769										$sensor_data_array['magz']      = $uuid_bytes_read['magz'];
1770										array_push($atom_structure['sensor_data']['data_type']['magno_data'], $sensor_data_array);
1771										break;
1772									case 5:
1773										$atom_structure['sensor_data']['data_type']['gps_count']++;
1774										$uuid_bytes_read = unpack('cmode/Jtimestamp/Glat/Glon/Galt/Gspeed/nbearing/nacc/x*', $sensor_data_content);
1775										$sensor_data_array['mode']      = $uuid_bytes_read['mode'];
1776										$sensor_data_array['timestamp'] = $uuid_bytes_read['timestamp'];
1777										$sensor_data_array['lat']       = $uuid_bytes_read['lat'];
1778										$sensor_data_array['lon']       = $uuid_bytes_read['lon'];
1779										$sensor_data_array['alt']       = $uuid_bytes_read['alt'];
1780										$sensor_data_array['speed']     = $uuid_bytes_read['speed'];
1781										$sensor_data_array['bearing']   = $uuid_bytes_read['bearing'];
1782										$sensor_data_array['acc']       = $uuid_bytes_read['acc'];
1783										array_push($atom_structure['sensor_data']['data_type']['gps_data'], $sensor_data_array);
1784										//array_push($debug_structure['debug_items'], $uuid_bytes_read['timestamp']);
1785										break;
1786									case 6:
1787										$atom_structure['sensor_data']['data_type']['rotation_count']++;
1788										$uuid_bytes_read = unpack('cmode/Jtimestamp/Grotx/Groty/Grotz/x*', $sensor_data_content);
1789										$sensor_data_array['mode']      = $uuid_bytes_read['mode'];
1790										$sensor_data_array['timestamp'] = $uuid_bytes_read['timestamp'];
1791										$sensor_data_array['rotx']      = $uuid_bytes_read['rotx'];
1792										$sensor_data_array['roty']      = $uuid_bytes_read['roty'];
1793										$sensor_data_array['rotz']      = $uuid_bytes_read['rotz'];
1794										array_push($atom_structure['sensor_data']['data_type']['rotation_data'], $sensor_data_array);
1795										break;
1796									default:
1797										$atom_structure['sensor_data']['data_type']['unknown_count']++;
1798										break;
1799								}
1800							}
1801							//if (isset($debug_structure['debug_items']) && count($debug_structure['debug_items']) > 0) {
1802							//	$atom_structure['sensor_data']['data_type']['debug_list'] = implode(',', $debug_structure['debug_items']);
1803							//} else {
1804								$atom_structure['sensor_data']['data_type']['debug_list'] = 'No debug items in list!';
1805							//}
1806							break;
1807
1808						default:
1809							$this->warning('Unhandled "uuid" atom identified by "'.$atom_structure['uuid_field_id'].'" at offset '.$atom_structure['offset'].' ('.strlen($atom_data).' bytes)');
1810					}
1811					break;
1812
1813				case 'gps ':
1814					// https://dashcamtalk.com/forum/threads/script-to-extract-gps-data-from-novatek-mp4.20808/page-2#post-291730
1815					// The 'gps ' contains simple look up table made up of 8byte rows, that point to the 'free' atoms that contains the actual GPS data.
1816					// The first row is version/metadata/notsure, I skip that.
1817					// The following rows consist of 4byte address (absolute) and 4byte size (0x1000), these point to the GPS data in the file.
1818
1819					$GPS_rowsize = 8; // 4 bytes for offset, 4 bytes for size
1820					if (strlen($atom_data) > 0) {
1821						if ((strlen($atom_data) % $GPS_rowsize) == 0) {
1822							$atom_structure['gps_toc'] = array();
1823							foreach (str_split($atom_data, $GPS_rowsize) as $counter => $datapair) {
1824								$atom_structure['gps_toc'][] = unpack('Noffset/Nsize', substr($atom_data, $counter * $GPS_rowsize, $GPS_rowsize));
1825							}
1826
1827							$atom_structure['gps_entries'] = array();
1828							$previous_offset = $this->ftell();
1829							foreach ($atom_structure['gps_toc'] as $key => $gps_pointer) {
1830								if ($key == 0) {
1831									// "The first row is version/metadata/notsure, I skip that."
1832									continue;
1833								}
1834								$this->fseek($gps_pointer['offset']);
1835								$GPS_free_data = $this->fread($gps_pointer['size']);
1836
1837								/*
1838								// 2017-05-10: I see some of the data, notably the Hour-Minute-Second, but cannot reconcile the rest of the data. However, the NMEA "GPRMC" line is there and relatively easy to parse, so I'm using that instead
1839
1840								// https://dashcamtalk.com/forum/threads/script-to-extract-gps-data-from-novatek-mp4.20808/page-2#post-291730
1841								// The structure of the GPS data atom (the 'free' atoms mentioned above) is following:
1842								// hour,minute,second,year,month,day,active,latitude_b,longitude_b,unknown2,latitude,longitude,speed = struct.unpack_from('<IIIIIIssssfff',data, 48)
1843								// For those unfamiliar with python struct:
1844								// I = int
1845								// s = is string (size 1, in this case)
1846								// f = float
1847
1848								//$atom_structure['gps_entries'][$key] = unpack('Vhour/Vminute/Vsecond/Vyear/Vmonth/Vday/Vactive/Vlatitude_b/Vlongitude_b/Vunknown2/flatitude/flongitude/fspeed', substr($GPS_free_data, 48));
1849								*/
1850
1851								// $GPRMC,081836,A,3751.65,S,14507.36,E,000.0,360.0,130998,011.3,E*62
1852								// $GPRMC,183731,A,3907.482,N,12102.436,W,000.0,360.0,080301,015.5,E*67
1853								// $GPRMC,002454,A,3553.5295,N,13938.6570,E,0.0,43.1,180700,7.1,W,A*3F
1854								// $GPRMC,094347.000,A,5342.0061,N,00737.9908,W,0.01,156.75,140217,,,A*7D
1855								if (preg_match('#\\$GPRMC,([0-9\\.]*),([AV]),([0-9\\.]*),([NS]),([0-9\\.]*),([EW]),([0-9\\.]*),([0-9\\.]*),([0-9]*),([0-9\\.]*),([EW]?)(,[A])?(\\*[0-9A-F]{2})#', $GPS_free_data, $matches)) {
1856									$GPS_this_GPRMC = array();
1857									$GPS_this_GPRMC_raw = array();
1858									list(
1859										$GPS_this_GPRMC_raw['gprmc'],
1860										$GPS_this_GPRMC_raw['timestamp'],
1861										$GPS_this_GPRMC_raw['status'],
1862										$GPS_this_GPRMC_raw['latitude'],
1863										$GPS_this_GPRMC_raw['latitude_direction'],
1864										$GPS_this_GPRMC_raw['longitude'],
1865										$GPS_this_GPRMC_raw['longitude_direction'],
1866										$GPS_this_GPRMC_raw['knots'],
1867										$GPS_this_GPRMC_raw['angle'],
1868										$GPS_this_GPRMC_raw['datestamp'],
1869										$GPS_this_GPRMC_raw['variation'],
1870										$GPS_this_GPRMC_raw['variation_direction'],
1871										$dummy,
1872										$GPS_this_GPRMC_raw['checksum'],
1873									) = $matches;
1874									$GPS_this_GPRMC['raw'] = $GPS_this_GPRMC_raw;
1875
1876									$hour   = substr($GPS_this_GPRMC['raw']['timestamp'], 0, 2);
1877									$minute = substr($GPS_this_GPRMC['raw']['timestamp'], 2, 2);
1878									$second = substr($GPS_this_GPRMC['raw']['timestamp'], 4, 2);
1879									$ms     = substr($GPS_this_GPRMC['raw']['timestamp'], 6);    // may contain decimal seconds
1880									$day    = substr($GPS_this_GPRMC['raw']['datestamp'], 0, 2);
1881									$month  = substr($GPS_this_GPRMC['raw']['datestamp'], 2, 2);
1882									$year   = (int) substr($GPS_this_GPRMC['raw']['datestamp'], 4, 2);
1883									$year += (($year > 90) ? 1900 : 2000); // complete lack of foresight: datestamps are stored with 2-digit years, take best guess
1884									$GPS_this_GPRMC['timestamp'] = $year.'-'.$month.'-'.$day.' '.$hour.':'.$minute.':'.$second.$ms;
1885
1886									$GPS_this_GPRMC['active'] = ($GPS_this_GPRMC['raw']['status'] == 'A'); // A=Active,V=Void
1887
1888									foreach (array('latitude','longitude') as $latlon) {
1889										preg_match('#^([0-9]{1,3})([0-9]{2}\\.[0-9]+)$#', $GPS_this_GPRMC['raw'][$latlon], $matches);
1890										list($dummy, $deg, $min) = $matches;
1891										$GPS_this_GPRMC[$latlon] = $deg + ($min / 60);
1892									}
1893									$GPS_this_GPRMC['latitude']  *= (($GPS_this_GPRMC['raw']['latitude_direction']  == 'S') ? -1 : 1);
1894									$GPS_this_GPRMC['longitude'] *= (($GPS_this_GPRMC['raw']['longitude_direction'] == 'W') ? -1 : 1);
1895
1896									$GPS_this_GPRMC['heading']    = $GPS_this_GPRMC['raw']['angle'];
1897									$GPS_this_GPRMC['speed_knot'] = $GPS_this_GPRMC['raw']['knots'];
1898									$GPS_this_GPRMC['speed_kmh']  = $GPS_this_GPRMC['raw']['knots'] * 1.852;
1899									if ($GPS_this_GPRMC['raw']['variation']) {
1900										$GPS_this_GPRMC['variation']  = $GPS_this_GPRMC['raw']['variation'];
1901										$GPS_this_GPRMC['variation'] *= (($GPS_this_GPRMC['raw']['variation_direction'] == 'W') ? -1 : 1);
1902									}
1903
1904									$atom_structure['gps_entries'][$key] = $GPS_this_GPRMC;
1905
1906									@$info['quicktime']['gps_track'][$GPS_this_GPRMC['timestamp']] = array(
1907										'latitude'  => (float) $GPS_this_GPRMC['latitude'],
1908										'longitude' => (float) $GPS_this_GPRMC['longitude'],
1909										'speed_kmh' => (float) $GPS_this_GPRMC['speed_kmh'],
1910										'heading'   => (float) $GPS_this_GPRMC['heading'],
1911									);
1912
1913								} else {
1914									$this->warning('Unhandled GPS format in "free" atom at offset '.$gps_pointer['offset']);
1915								}
1916							}
1917							$this->fseek($previous_offset);
1918
1919						} else {
1920							$this->warning('QuickTime atom "'.$atomname.'" is not mod-8 bytes long ('.$atomsize.' bytes) at offset '.$baseoffset);
1921						}
1922					} else {
1923						$this->warning('QuickTime atom "'.$atomname.'" is zero bytes long at offset '.$baseoffset);
1924					}
1925					break;
1926
1927				case 'loci':// 3GP location (El Loco)
1928					$loffset = 0;
1929					$info['quicktime']['comments']['gps_flags']     = array(  getid3_lib::BigEndian2Int(substr($atom_data, 0, 4)));
1930					$info['quicktime']['comments']['gps_lang']      = array(  getid3_lib::BigEndian2Int(substr($atom_data, 4, 2)));
1931					$info['quicktime']['comments']['gps_location']  = array(          $this->LociString(substr($atom_data, 6), $loffset));
1932					$loci_data = substr($atom_data, 6 + $loffset);
1933					$info['quicktime']['comments']['gps_role']      = array(  getid3_lib::BigEndian2Int(substr($loci_data, 0, 1)));
1934					$info['quicktime']['comments']['gps_longitude'] = array(getid3_lib::FixedPoint16_16(substr($loci_data, 1, 4)));
1935					$info['quicktime']['comments']['gps_latitude']  = array(getid3_lib::FixedPoint16_16(substr($loci_data, 5, 4)));
1936					$info['quicktime']['comments']['gps_altitude']  = array(getid3_lib::FixedPoint16_16(substr($loci_data, 9, 4)));
1937					$info['quicktime']['comments']['gps_body']      = array(          $this->LociString(substr($loci_data, 13           ), $loffset));
1938					$info['quicktime']['comments']['gps_notes']     = array(          $this->LociString(substr($loci_data, 13 + $loffset), $loffset));
1939					break;
1940
1941				case 'chpl': // CHaPter List
1942					// https://www.adobe.com/content/dam/Adobe/en/devnet/flv/pdfs/video_file_format_spec_v10.pdf
1943					$chpl_version = getid3_lib::BigEndian2Int(substr($atom_data, 4, 1)); // Expected to be 0
1944					$chpl_flags   = getid3_lib::BigEndian2Int(substr($atom_data, 5, 3)); // Reserved, set to 0
1945					$chpl_count   = getid3_lib::BigEndian2Int(substr($atom_data, 8, 1));
1946					$chpl_offset = 9;
1947					for ($i = 0; $i < $chpl_count; $i++) {
1948						if (($chpl_offset + 9) >= strlen($atom_data)) {
1949							$this->warning('QuickTime chapter '.$i.' extends beyond end of "chpl" atom');
1950							break;
1951						}
1952						$info['quicktime']['chapters'][$i]['timestamp'] = getid3_lib::BigEndian2Int(substr($atom_data, $chpl_offset, 8)) / 10000000; // timestamps are stored as 100-nanosecond units
1953						$chpl_offset += 8;
1954						$chpl_title_size = getid3_lib::BigEndian2Int(substr($atom_data, $chpl_offset, 1));
1955						$chpl_offset += 1;
1956						$info['quicktime']['chapters'][$i]['title']     =                           substr($atom_data, $chpl_offset, $chpl_title_size);
1957						$chpl_offset += $chpl_title_size;
1958					}
1959					break;
1960
1961				case 'FIRM': // FIRMware version(?), seen on GoPro Hero4
1962					$info['quicktime']['camera']['firmware'] = $atom_data;
1963					break;
1964
1965				case 'CAME': // FIRMware version(?), seen on GoPro Hero4
1966					$info['quicktime']['camera']['serial_hash'] = unpack('H*', $atom_data);
1967					break;
1968
1969				case 'dscp':
1970				case 'rcif':
1971					// https://www.getid3.org/phpBB3/viewtopic.php?t=1908
1972					if (substr($atom_data, 0, 7) == "\x00\x00\x00\x00\x55\xC4".'{') {
1973						if ($json_decoded = @json_decode(rtrim(substr($atom_data, 6), "\x00"), true)) {
1974							$info['quicktime']['camera'][$atomname] = $json_decoded;
1975							if (($atomname == 'rcif') && isset($info['quicktime']['camera']['rcif']['wxcamera']['rotate'])) {
1976								$info['video']['rotate'] = $info['quicktime']['video']['rotate'] = $info['quicktime']['camera']['rcif']['wxcamera']['rotate'];
1977							}
1978						} else {
1979							$this->warning('Failed to JSON decode atom "'.$atomname.'"');
1980							$atom_structure['data'] = $atom_data;
1981						}
1982						unset($json_decoded);
1983					} else {
1984						$this->warning('Expecting 55 C4 7B at start of atom "'.$atomname.'", found '.getid3_lib::PrintHexBytes(substr($atom_data, 4, 3)).' instead');
1985						$atom_structure['data'] = $atom_data;
1986					}
1987					break;
1988
1989				case 'frea':
1990					// https://www.sno.phy.queensu.ca/~phil/exiftool/TagNames/Kodak.html#frea
1991					// may contain "scra" (PreviewImage) and/or "thma" (ThumbnailImage)
1992					$atom_structure['subatoms'] = $this->QuicktimeParseContainerAtom($atom_data, $baseoffset + 4, $atomHierarchy, $ParseAllPossibleAtoms);
1993					break;
1994				case 'tima': // subatom to "frea"
1995					// no idea what this does, the one sample file I've seen has a value of 0x00000027
1996					$atom_structure['data'] = $atom_data;
1997					break;
1998				case 'ver ': // subatom to "frea"
1999					// some kind of version number, the one sample file I've seen has a value of "3.00.073"
2000					$atom_structure['data'] = $atom_data;
2001					break;
2002				case 'thma': // subatom to "frea" -- "ThumbnailImage"
2003					// https://www.sno.phy.queensu.ca/~phil/exiftool/TagNames/Kodak.html#frea
2004					if (strlen($atom_data) > 0) {
2005						$info['quicktime']['comments']['picture'][] = array('data'=>$atom_data, 'image_mime'=>'image/jpeg', 'description'=>'ThumbnailImage');
2006					}
2007					break;
2008				case 'scra': // subatom to "frea" -- "PreviewImage"
2009					// https://www.sno.phy.queensu.ca/~phil/exiftool/TagNames/Kodak.html#frea
2010					// but the only sample file I've seen has no useful data here
2011					if (strlen($atom_data) > 0) {
2012						$info['quicktime']['comments']['picture'][] = array('data'=>$atom_data, 'image_mime'=>'image/jpeg', 'description'=>'PreviewImage');
2013					}
2014					break;
2015
2016				case 'cdsc': // timed metadata reference
2017					// A QuickTime movie can contain none, one, or several timed metadata tracks. Timed metadata tracks can refer to multiple tracks.
2018					// Metadata tracks are linked to the tracks they describe using a track-reference of type 'cdsc'. The metadata track holds the 'cdsc' track reference.
2019					$atom_structure['track_number'] = getid3_lib::BigEndian2Int($atom_data);
2020					break;
2021
2022				default:
2023					$this->warning('Unknown QuickTime atom type: "'.preg_replace('#[^a-zA-Z0-9 _\\-]#', '?', $atomname).'" ('.trim(getid3_lib::PrintHexBytes($atomname)).'), '.$atomsize.' bytes at offset '.$baseoffset);
2024					$atom_structure['data'] = $atom_data;
2025					break;
2026			}
2027		}
2028		array_pop($atomHierarchy);
2029		return $atom_structure;
2030	}
2031
2032	/**
2033	 * @param string $atom_data
2034	 * @param int    $baseoffset
2035	 * @param array  $atomHierarchy
2036	 * @param bool   $ParseAllPossibleAtoms
2037	 *
2038	 * @return array|false
2039	 */
2040	public function QuicktimeParseContainerAtom($atom_data, $baseoffset, &$atomHierarchy, $ParseAllPossibleAtoms) {
2041		$atom_structure  = false;
2042		$subatomoffset  = 0;
2043		$subatomcounter = 0;
2044		if ((strlen($atom_data) == 4) && (getid3_lib::BigEndian2Int($atom_data) == 0x00000000)) {
2045			return false;
2046		}
2047		while ($subatomoffset < strlen($atom_data)) {
2048			$subatomsize = getid3_lib::BigEndian2Int(substr($atom_data, $subatomoffset + 0, 4));
2049			$subatomname =                           substr($atom_data, $subatomoffset + 4, 4);
2050			$subatomdata =                           substr($atom_data, $subatomoffset + 8, $subatomsize - 8);
2051			if ($subatomsize == 0) {
2052				// Furthermore, for historical reasons the list of atoms is optionally
2053				// terminated by a 32-bit integer set to 0. If you are writing a program
2054				// to read user data atoms, you should allow for the terminating 0.
2055				if (strlen($atom_data) > 12) {
2056					$subatomoffset += 4;
2057					continue;
2058				}
2059				return $atom_structure;
2060			}
2061			if (strlen($subatomdata) < ($subatomsize - 8)) {
2062			    // we don't have enough data to decode the subatom.
2063			    // this may be because we are refusing to parse large subatoms, or it may be because this atom had its size set too large
2064			    // so we passed in the start of a following atom incorrectly?
2065			    return $atom_structure;
2066			}
2067			$atom_structure[$subatomcounter++] = $this->QuicktimeParseAtom($subatomname, $subatomsize, $subatomdata, $baseoffset + $subatomoffset, $atomHierarchy, $ParseAllPossibleAtoms);
2068			$subatomoffset += $subatomsize;
2069		}
2070		return $atom_structure;
2071	}
2072
2073	/**
2074	 * @param string $data
2075	 * @param int    $offset
2076	 *
2077	 * @return int
2078	 */
2079	public function quicktime_read_mp4_descr_length($data, &$offset) {
2080		// http://libquicktime.sourcearchive.com/documentation/2:1.0.2plus-pdebian-2build1/esds_8c-source.html
2081		$num_bytes = 0;
2082		$length    = 0;
2083		do {
2084			$b = ord(substr($data, $offset++, 1));
2085			$length = ($length << 7) | ($b & 0x7F);
2086		} while (($b & 0x80) && ($num_bytes++ < 4));
2087		return $length;
2088	}
2089
2090	/**
2091	 * @param int $languageid
2092	 *
2093	 * @return string
2094	 */
2095	public function QuicktimeLanguageLookup($languageid) {
2096		// http://developer.apple.com/library/mac/#documentation/QuickTime/QTFF/QTFFChap4/qtff4.html#//apple_ref/doc/uid/TP40000939-CH206-34353
2097		static $QuicktimeLanguageLookup = array();
2098		if (empty($QuicktimeLanguageLookup)) {
2099			$QuicktimeLanguageLookup[0]     = 'English';
2100			$QuicktimeLanguageLookup[1]     = 'French';
2101			$QuicktimeLanguageLookup[2]     = 'German';
2102			$QuicktimeLanguageLookup[3]     = 'Italian';
2103			$QuicktimeLanguageLookup[4]     = 'Dutch';
2104			$QuicktimeLanguageLookup[5]     = 'Swedish';
2105			$QuicktimeLanguageLookup[6]     = 'Spanish';
2106			$QuicktimeLanguageLookup[7]     = 'Danish';
2107			$QuicktimeLanguageLookup[8]     = 'Portuguese';
2108			$QuicktimeLanguageLookup[9]     = 'Norwegian';
2109			$QuicktimeLanguageLookup[10]    = 'Hebrew';
2110			$QuicktimeLanguageLookup[11]    = 'Japanese';
2111			$QuicktimeLanguageLookup[12]    = 'Arabic';
2112			$QuicktimeLanguageLookup[13]    = 'Finnish';
2113			$QuicktimeLanguageLookup[14]    = 'Greek';
2114			$QuicktimeLanguageLookup[15]    = 'Icelandic';
2115			$QuicktimeLanguageLookup[16]    = 'Maltese';
2116			$QuicktimeLanguageLookup[17]    = 'Turkish';
2117			$QuicktimeLanguageLookup[18]    = 'Croatian';
2118			$QuicktimeLanguageLookup[19]    = 'Chinese (Traditional)';
2119			$QuicktimeLanguageLookup[20]    = 'Urdu';
2120			$QuicktimeLanguageLookup[21]    = 'Hindi';
2121			$QuicktimeLanguageLookup[22]    = 'Thai';
2122			$QuicktimeLanguageLookup[23]    = 'Korean';
2123			$QuicktimeLanguageLookup[24]    = 'Lithuanian';
2124			$QuicktimeLanguageLookup[25]    = 'Polish';
2125			$QuicktimeLanguageLookup[26]    = 'Hungarian';
2126			$QuicktimeLanguageLookup[27]    = 'Estonian';
2127			$QuicktimeLanguageLookup[28]    = 'Lettish';
2128			$QuicktimeLanguageLookup[28]    = 'Latvian';
2129			$QuicktimeLanguageLookup[29]    = 'Saamisk';
2130			$QuicktimeLanguageLookup[29]    = 'Lappish';
2131			$QuicktimeLanguageLookup[30]    = 'Faeroese';
2132			$QuicktimeLanguageLookup[31]    = 'Farsi';
2133			$QuicktimeLanguageLookup[31]    = 'Persian';
2134			$QuicktimeLanguageLookup[32]    = 'Russian';
2135			$QuicktimeLanguageLookup[33]    = 'Chinese (Simplified)';
2136			$QuicktimeLanguageLookup[34]    = 'Flemish';
2137			$QuicktimeLanguageLookup[35]    = 'Irish';
2138			$QuicktimeLanguageLookup[36]    = 'Albanian';
2139			$QuicktimeLanguageLookup[37]    = 'Romanian';
2140			$QuicktimeLanguageLookup[38]    = 'Czech';
2141			$QuicktimeLanguageLookup[39]    = 'Slovak';
2142			$QuicktimeLanguageLookup[40]    = 'Slovenian';
2143			$QuicktimeLanguageLookup[41]    = 'Yiddish';
2144			$QuicktimeLanguageLookup[42]    = 'Serbian';
2145			$QuicktimeLanguageLookup[43]    = 'Macedonian';
2146			$QuicktimeLanguageLookup[44]    = 'Bulgarian';
2147			$QuicktimeLanguageLookup[45]    = 'Ukrainian';
2148			$QuicktimeLanguageLookup[46]    = 'Byelorussian';
2149			$QuicktimeLanguageLookup[47]    = 'Uzbek';
2150			$QuicktimeLanguageLookup[48]    = 'Kazakh';
2151			$QuicktimeLanguageLookup[49]    = 'Azerbaijani';
2152			$QuicktimeLanguageLookup[50]    = 'AzerbaijanAr';
2153			$QuicktimeLanguageLookup[51]    = 'Armenian';
2154			$QuicktimeLanguageLookup[52]    = 'Georgian';
2155			$QuicktimeLanguageLookup[53]    = 'Moldavian';
2156			$QuicktimeLanguageLookup[54]    = 'Kirghiz';
2157			$QuicktimeLanguageLookup[55]    = 'Tajiki';
2158			$QuicktimeLanguageLookup[56]    = 'Turkmen';
2159			$QuicktimeLanguageLookup[57]    = 'Mongolian';
2160			$QuicktimeLanguageLookup[58]    = 'MongolianCyr';
2161			$QuicktimeLanguageLookup[59]    = 'Pashto';
2162			$QuicktimeLanguageLookup[60]    = 'Kurdish';
2163			$QuicktimeLanguageLookup[61]    = 'Kashmiri';
2164			$QuicktimeLanguageLookup[62]    = 'Sindhi';
2165			$QuicktimeLanguageLookup[63]    = 'Tibetan';
2166			$QuicktimeLanguageLookup[64]    = 'Nepali';
2167			$QuicktimeLanguageLookup[65]    = 'Sanskrit';
2168			$QuicktimeLanguageLookup[66]    = 'Marathi';
2169			$QuicktimeLanguageLookup[67]    = 'Bengali';
2170			$QuicktimeLanguageLookup[68]    = 'Assamese';
2171			$QuicktimeLanguageLookup[69]    = 'Gujarati';
2172			$QuicktimeLanguageLookup[70]    = 'Punjabi';
2173			$QuicktimeLanguageLookup[71]    = 'Oriya';
2174			$QuicktimeLanguageLookup[72]    = 'Malayalam';
2175			$QuicktimeLanguageLookup[73]    = 'Kannada';
2176			$QuicktimeLanguageLookup[74]    = 'Tamil';
2177			$QuicktimeLanguageLookup[75]    = 'Telugu';
2178			$QuicktimeLanguageLookup[76]    = 'Sinhalese';
2179			$QuicktimeLanguageLookup[77]    = 'Burmese';
2180			$QuicktimeLanguageLookup[78]    = 'Khmer';
2181			$QuicktimeLanguageLookup[79]    = 'Lao';
2182			$QuicktimeLanguageLookup[80]    = 'Vietnamese';
2183			$QuicktimeLanguageLookup[81]    = 'Indonesian';
2184			$QuicktimeLanguageLookup[82]    = 'Tagalog';
2185			$QuicktimeLanguageLookup[83]    = 'MalayRoman';
2186			$QuicktimeLanguageLookup[84]    = 'MalayArabic';
2187			$QuicktimeLanguageLookup[85]    = 'Amharic';
2188			$QuicktimeLanguageLookup[86]    = 'Tigrinya';
2189			$QuicktimeLanguageLookup[87]    = 'Galla';
2190			$QuicktimeLanguageLookup[87]    = 'Oromo';
2191			$QuicktimeLanguageLookup[88]    = 'Somali';
2192			$QuicktimeLanguageLookup[89]    = 'Swahili';
2193			$QuicktimeLanguageLookup[90]    = 'Ruanda';
2194			$QuicktimeLanguageLookup[91]    = 'Rundi';
2195			$QuicktimeLanguageLookup[92]    = 'Chewa';
2196			$QuicktimeLanguageLookup[93]    = 'Malagasy';
2197			$QuicktimeLanguageLookup[94]    = 'Esperanto';
2198			$QuicktimeLanguageLookup[128]   = 'Welsh';
2199			$QuicktimeLanguageLookup[129]   = 'Basque';
2200			$QuicktimeLanguageLookup[130]   = 'Catalan';
2201			$QuicktimeLanguageLookup[131]   = 'Latin';
2202			$QuicktimeLanguageLookup[132]   = 'Quechua';
2203			$QuicktimeLanguageLookup[133]   = 'Guarani';
2204			$QuicktimeLanguageLookup[134]   = 'Aymara';
2205			$QuicktimeLanguageLookup[135]   = 'Tatar';
2206			$QuicktimeLanguageLookup[136]   = 'Uighur';
2207			$QuicktimeLanguageLookup[137]   = 'Dzongkha';
2208			$QuicktimeLanguageLookup[138]   = 'JavaneseRom';
2209			$QuicktimeLanguageLookup[32767] = 'Unspecified';
2210		}
2211		if (($languageid > 138) && ($languageid < 32767)) {
2212			/*
2213			ISO Language Codes - http://www.loc.gov/standards/iso639-2/php/code_list.php
2214			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.
2215			The packing algorithm must map each of the three characters, which are always lowercase, into a 5-bit integer and then concatenate
2216			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.
2217
2218			One algorithm for performing this packing is to treat each ISO character as a 16-bit integer. Subtract 0x60 from the first character
2219			and multiply by 2^10 (0x400), subtract 0x60 from the second character and multiply by 2^5 (0x20), subtract 0x60 from the third character,
2220			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
2221			significant bits and the most significant bit set to zero.
2222			*/
2223			$iso_language_id  = '';
2224			$iso_language_id .= chr((($languageid & 0x7C00) >> 10) + 0x60);
2225			$iso_language_id .= chr((($languageid & 0x03E0) >>  5) + 0x60);
2226			$iso_language_id .= chr((($languageid & 0x001F) >>  0) + 0x60);
2227			$QuicktimeLanguageLookup[$languageid] = getid3_id3v2::LanguageLookup($iso_language_id);
2228		}
2229		return (isset($QuicktimeLanguageLookup[$languageid]) ? $QuicktimeLanguageLookup[$languageid] : 'invalid');
2230	}
2231
2232	/**
2233	 * @param string $codecid
2234	 *
2235	 * @return string
2236	 */
2237	public function QuicktimeVideoCodecLookup($codecid) {
2238		static $QuicktimeVideoCodecLookup = array();
2239		if (empty($QuicktimeVideoCodecLookup)) {
2240			$QuicktimeVideoCodecLookup['.SGI'] = 'SGI';
2241			$QuicktimeVideoCodecLookup['3IV1'] = '3ivx MPEG-4 v1';
2242			$QuicktimeVideoCodecLookup['3IV2'] = '3ivx MPEG-4 v2';
2243			$QuicktimeVideoCodecLookup['3IVX'] = '3ivx MPEG-4';
2244			$QuicktimeVideoCodecLookup['8BPS'] = 'Planar RGB';
2245			$QuicktimeVideoCodecLookup['avc1'] = 'H.264/MPEG-4 AVC';
2246			$QuicktimeVideoCodecLookup['avr '] = 'AVR-JPEG';
2247			$QuicktimeVideoCodecLookup['b16g'] = '16Gray';
2248			$QuicktimeVideoCodecLookup['b32a'] = '32AlphaGray';
2249			$QuicktimeVideoCodecLookup['b48r'] = '48RGB';
2250			$QuicktimeVideoCodecLookup['b64a'] = '64ARGB';
2251			$QuicktimeVideoCodecLookup['base'] = 'Base';
2252			$QuicktimeVideoCodecLookup['clou'] = 'Cloud';
2253			$QuicktimeVideoCodecLookup['cmyk'] = 'CMYK';
2254			$QuicktimeVideoCodecLookup['cvid'] = 'Cinepak';
2255			$QuicktimeVideoCodecLookup['dmb1'] = 'OpenDML JPEG';
2256			$QuicktimeVideoCodecLookup['dvc '] = 'DVC-NTSC';
2257			$QuicktimeVideoCodecLookup['dvcp'] = 'DVC-PAL';
2258			$QuicktimeVideoCodecLookup['dvpn'] = 'DVCPro-NTSC';
2259			$QuicktimeVideoCodecLookup['dvpp'] = 'DVCPro-PAL';
2260			$QuicktimeVideoCodecLookup['fire'] = 'Fire';
2261			$QuicktimeVideoCodecLookup['flic'] = 'FLC';
2262			$QuicktimeVideoCodecLookup['gif '] = 'GIF';
2263			$QuicktimeVideoCodecLookup['h261'] = 'H261';
2264			$QuicktimeVideoCodecLookup['h263'] = 'H263';
2265			$QuicktimeVideoCodecLookup['IV41'] = 'Indeo4';
2266			$QuicktimeVideoCodecLookup['jpeg'] = 'JPEG';
2267			$QuicktimeVideoCodecLookup['kpcd'] = 'PhotoCD';
2268			$QuicktimeVideoCodecLookup['mjpa'] = 'Motion JPEG-A';
2269			$QuicktimeVideoCodecLookup['mjpb'] = 'Motion JPEG-B';
2270			$QuicktimeVideoCodecLookup['msvc'] = 'Microsoft Video1';
2271			$QuicktimeVideoCodecLookup['myuv'] = 'MPEG YUV420';
2272			$QuicktimeVideoCodecLookup['path'] = 'Vector';
2273			$QuicktimeVideoCodecLookup['png '] = 'PNG';
2274			$QuicktimeVideoCodecLookup['PNTG'] = 'MacPaint';
2275			$QuicktimeVideoCodecLookup['qdgx'] = 'QuickDrawGX';
2276			$QuicktimeVideoCodecLookup['qdrw'] = 'QuickDraw';
2277			$QuicktimeVideoCodecLookup['raw '] = 'RAW';
2278			$QuicktimeVideoCodecLookup['ripl'] = 'WaterRipple';
2279			$QuicktimeVideoCodecLookup['rpza'] = 'Video';
2280			$QuicktimeVideoCodecLookup['smc '] = 'Graphics';
2281			$QuicktimeVideoCodecLookup['SVQ1'] = 'Sorenson Video 1';
2282			$QuicktimeVideoCodecLookup['SVQ1'] = 'Sorenson Video 3';
2283			$QuicktimeVideoCodecLookup['syv9'] = 'Sorenson YUV9';
2284			$QuicktimeVideoCodecLookup['tga '] = 'Targa';
2285			$QuicktimeVideoCodecLookup['tiff'] = 'TIFF';
2286			$QuicktimeVideoCodecLookup['WRAW'] = 'Windows RAW';
2287			$QuicktimeVideoCodecLookup['WRLE'] = 'BMP';
2288			$QuicktimeVideoCodecLookup['y420'] = 'YUV420';
2289			$QuicktimeVideoCodecLookup['yuv2'] = 'ComponentVideo';
2290			$QuicktimeVideoCodecLookup['yuvs'] = 'ComponentVideoUnsigned';
2291			$QuicktimeVideoCodecLookup['yuvu'] = 'ComponentVideoSigned';
2292		}
2293		return (isset($QuicktimeVideoCodecLookup[$codecid]) ? $QuicktimeVideoCodecLookup[$codecid] : '');
2294	}
2295
2296	/**
2297	 * @param string $codecid
2298	 *
2299	 * @return mixed|string
2300	 */
2301	public function QuicktimeAudioCodecLookup($codecid) {
2302		static $QuicktimeAudioCodecLookup = array();
2303		if (empty($QuicktimeAudioCodecLookup)) {
2304			$QuicktimeAudioCodecLookup['.mp3']          = 'Fraunhofer MPEG Layer-III alias';
2305			$QuicktimeAudioCodecLookup['aac ']          = 'ISO/IEC 14496-3 AAC';
2306			$QuicktimeAudioCodecLookup['agsm']          = 'Apple GSM 10:1';
2307			$QuicktimeAudioCodecLookup['alac']          = 'Apple Lossless Audio Codec';
2308			$QuicktimeAudioCodecLookup['alaw']          = 'A-law 2:1';
2309			$QuicktimeAudioCodecLookup['conv']          = 'Sample Format';
2310			$QuicktimeAudioCodecLookup['dvca']          = 'DV';
2311			$QuicktimeAudioCodecLookup['dvi ']          = 'DV 4:1';
2312			$QuicktimeAudioCodecLookup['eqal']          = 'Frequency Equalizer';
2313			$QuicktimeAudioCodecLookup['fl32']          = '32-bit Floating Point';
2314			$QuicktimeAudioCodecLookup['fl64']          = '64-bit Floating Point';
2315			$QuicktimeAudioCodecLookup['ima4']          = 'Interactive Multimedia Association 4:1';
2316			$QuicktimeAudioCodecLookup['in24']          = '24-bit Integer';
2317			$QuicktimeAudioCodecLookup['in32']          = '32-bit Integer';
2318			$QuicktimeAudioCodecLookup['lpc ']          = 'LPC 23:1';
2319			$QuicktimeAudioCodecLookup['MAC3']          = 'Macintosh Audio Compression/Expansion (MACE) 3:1';
2320			$QuicktimeAudioCodecLookup['MAC6']          = 'Macintosh Audio Compression/Expansion (MACE) 6:1';
2321			$QuicktimeAudioCodecLookup['mixb']          = '8-bit Mixer';
2322			$QuicktimeAudioCodecLookup['mixw']          = '16-bit Mixer';
2323			$QuicktimeAudioCodecLookup['mp4a']          = 'ISO/IEC 14496-3 AAC';
2324			$QuicktimeAudioCodecLookup['MS'."\x00\x02"] = 'Microsoft ADPCM';
2325			$QuicktimeAudioCodecLookup['MS'."\x00\x11"] = 'DV IMA';
2326			$QuicktimeAudioCodecLookup['MS'."\x00\x55"] = 'Fraunhofer MPEG Layer III';
2327			$QuicktimeAudioCodecLookup['NONE']          = 'No Encoding';
2328			$QuicktimeAudioCodecLookup['Qclp']          = 'Qualcomm PureVoice';
2329			$QuicktimeAudioCodecLookup['QDM2']          = 'QDesign Music 2';
2330			$QuicktimeAudioCodecLookup['QDMC']          = 'QDesign Music 1';
2331			$QuicktimeAudioCodecLookup['ratb']          = '8-bit Rate';
2332			$QuicktimeAudioCodecLookup['ratw']          = '16-bit Rate';
2333			$QuicktimeAudioCodecLookup['raw ']          = 'raw PCM';
2334			$QuicktimeAudioCodecLookup['sour']          = 'Sound Source';
2335			$QuicktimeAudioCodecLookup['sowt']          = 'signed/two\'s complement (Little Endian)';
2336			$QuicktimeAudioCodecLookup['str1']          = 'Iomega MPEG layer II';
2337			$QuicktimeAudioCodecLookup['str2']          = 'Iomega MPEG *layer II';
2338			$QuicktimeAudioCodecLookup['str3']          = 'Iomega MPEG **layer II';
2339			$QuicktimeAudioCodecLookup['str4']          = 'Iomega MPEG ***layer II';
2340			$QuicktimeAudioCodecLookup['twos']          = 'signed/two\'s complement (Big Endian)';
2341			$QuicktimeAudioCodecLookup['ulaw']          = 'mu-law 2:1';
2342		}
2343		return (isset($QuicktimeAudioCodecLookup[$codecid]) ? $QuicktimeAudioCodecLookup[$codecid] : '');
2344	}
2345
2346	/**
2347	 * @param string $compressionid
2348	 *
2349	 * @return string
2350	 */
2351	public function QuicktimeDCOMLookup($compressionid) {
2352		static $QuicktimeDCOMLookup = array();
2353		if (empty($QuicktimeDCOMLookup)) {
2354			$QuicktimeDCOMLookup['zlib'] = 'ZLib Deflate';
2355			$QuicktimeDCOMLookup['adec'] = 'Apple Compression';
2356		}
2357		return (isset($QuicktimeDCOMLookup[$compressionid]) ? $QuicktimeDCOMLookup[$compressionid] : '');
2358	}
2359
2360	/**
2361	 * @param int $colordepthid
2362	 *
2363	 * @return string
2364	 */
2365	public function QuicktimeColorNameLookup($colordepthid) {
2366		static $QuicktimeColorNameLookup = array();
2367		if (empty($QuicktimeColorNameLookup)) {
2368			$QuicktimeColorNameLookup[1]  = '2-color (monochrome)';
2369			$QuicktimeColorNameLookup[2]  = '4-color';
2370			$QuicktimeColorNameLookup[4]  = '16-color';
2371			$QuicktimeColorNameLookup[8]  = '256-color';
2372			$QuicktimeColorNameLookup[16] = 'thousands (16-bit color)';
2373			$QuicktimeColorNameLookup[24] = 'millions (24-bit color)';
2374			$QuicktimeColorNameLookup[32] = 'millions+ (32-bit color)';
2375			$QuicktimeColorNameLookup[33] = 'black & white';
2376			$QuicktimeColorNameLookup[34] = '4-gray';
2377			$QuicktimeColorNameLookup[36] = '16-gray';
2378			$QuicktimeColorNameLookup[40] = '256-gray';
2379		}
2380		return (isset($QuicktimeColorNameLookup[$colordepthid]) ? $QuicktimeColorNameLookup[$colordepthid] : 'invalid');
2381	}
2382
2383	/**
2384	 * @param int $stik
2385	 *
2386	 * @return string
2387	 */
2388	public function QuicktimeSTIKLookup($stik) {
2389		static $QuicktimeSTIKLookup = array();
2390		if (empty($QuicktimeSTIKLookup)) {
2391			$QuicktimeSTIKLookup[0]  = 'Movie';
2392			$QuicktimeSTIKLookup[1]  = 'Normal';
2393			$QuicktimeSTIKLookup[2]  = 'Audiobook';
2394			$QuicktimeSTIKLookup[5]  = 'Whacked Bookmark';
2395			$QuicktimeSTIKLookup[6]  = 'Music Video';
2396			$QuicktimeSTIKLookup[9]  = 'Short Film';
2397			$QuicktimeSTIKLookup[10] = 'TV Show';
2398			$QuicktimeSTIKLookup[11] = 'Booklet';
2399			$QuicktimeSTIKLookup[14] = 'Ringtone';
2400			$QuicktimeSTIKLookup[21] = 'Podcast';
2401		}
2402		return (isset($QuicktimeSTIKLookup[$stik]) ? $QuicktimeSTIKLookup[$stik] : 'invalid');
2403	}
2404
2405	/**
2406	 * @param int $audio_profile_id
2407	 *
2408	 * @return string
2409	 */
2410	public function QuicktimeIODSaudioProfileName($audio_profile_id) {
2411		static $QuicktimeIODSaudioProfileNameLookup = array();
2412		if (empty($QuicktimeIODSaudioProfileNameLookup)) {
2413			$QuicktimeIODSaudioProfileNameLookup = array(
2414				0x00 => 'ISO Reserved (0x00)',
2415				0x01 => 'Main Audio Profile @ Level 1',
2416				0x02 => 'Main Audio Profile @ Level 2',
2417				0x03 => 'Main Audio Profile @ Level 3',
2418				0x04 => 'Main Audio Profile @ Level 4',
2419				0x05 => 'Scalable Audio Profile @ Level 1',
2420				0x06 => 'Scalable Audio Profile @ Level 2',
2421				0x07 => 'Scalable Audio Profile @ Level 3',
2422				0x08 => 'Scalable Audio Profile @ Level 4',
2423				0x09 => 'Speech Audio Profile @ Level 1',
2424				0x0A => 'Speech Audio Profile @ Level 2',
2425				0x0B => 'Synthetic Audio Profile @ Level 1',
2426				0x0C => 'Synthetic Audio Profile @ Level 2',
2427				0x0D => 'Synthetic Audio Profile @ Level 3',
2428				0x0E => 'High Quality Audio Profile @ Level 1',
2429				0x0F => 'High Quality Audio Profile @ Level 2',
2430				0x10 => 'High Quality Audio Profile @ Level 3',
2431				0x11 => 'High Quality Audio Profile @ Level 4',
2432				0x12 => 'High Quality Audio Profile @ Level 5',
2433				0x13 => 'High Quality Audio Profile @ Level 6',
2434				0x14 => 'High Quality Audio Profile @ Level 7',
2435				0x15 => 'High Quality Audio Profile @ Level 8',
2436				0x16 => 'Low Delay Audio Profile @ Level 1',
2437				0x17 => 'Low Delay Audio Profile @ Level 2',
2438				0x18 => 'Low Delay Audio Profile @ Level 3',
2439				0x19 => 'Low Delay Audio Profile @ Level 4',
2440				0x1A => 'Low Delay Audio Profile @ Level 5',
2441				0x1B => 'Low Delay Audio Profile @ Level 6',
2442				0x1C => 'Low Delay Audio Profile @ Level 7',
2443				0x1D => 'Low Delay Audio Profile @ Level 8',
2444				0x1E => 'Natural Audio Profile @ Level 1',
2445				0x1F => 'Natural Audio Profile @ Level 2',
2446				0x20 => 'Natural Audio Profile @ Level 3',
2447				0x21 => 'Natural Audio Profile @ Level 4',
2448				0x22 => 'Mobile Audio Internetworking Profile @ Level 1',
2449				0x23 => 'Mobile Audio Internetworking Profile @ Level 2',
2450				0x24 => 'Mobile Audio Internetworking Profile @ Level 3',
2451				0x25 => 'Mobile Audio Internetworking Profile @ Level 4',
2452				0x26 => 'Mobile Audio Internetworking Profile @ Level 5',
2453				0x27 => 'Mobile Audio Internetworking Profile @ Level 6',
2454				0x28 => 'AAC Profile @ Level 1',
2455				0x29 => 'AAC Profile @ Level 2',
2456				0x2A => 'AAC Profile @ Level 4',
2457				0x2B => 'AAC Profile @ Level 5',
2458				0x2C => 'High Efficiency AAC Profile @ Level 2',
2459				0x2D => 'High Efficiency AAC Profile @ Level 3',
2460				0x2E => 'High Efficiency AAC Profile @ Level 4',
2461				0x2F => 'High Efficiency AAC Profile @ Level 5',
2462				0xFE => 'Not part of MPEG-4 audio profiles',
2463				0xFF => 'No audio capability required',
2464			);
2465		}
2466		return (isset($QuicktimeIODSaudioProfileNameLookup[$audio_profile_id]) ? $QuicktimeIODSaudioProfileNameLookup[$audio_profile_id] : 'ISO Reserved / User Private');
2467	}
2468
2469	/**
2470	 * @param int $video_profile_id
2471	 *
2472	 * @return string
2473	 */
2474	public function QuicktimeIODSvideoProfileName($video_profile_id) {
2475		static $QuicktimeIODSvideoProfileNameLookup = array();
2476		if (empty($QuicktimeIODSvideoProfileNameLookup)) {
2477			$QuicktimeIODSvideoProfileNameLookup = array(
2478				0x00 => 'Reserved (0x00) Profile',
2479				0x01 => 'Simple Profile @ Level 1',
2480				0x02 => 'Simple Profile @ Level 2',
2481				0x03 => 'Simple Profile @ Level 3',
2482				0x08 => 'Simple Profile @ Level 0',
2483				0x10 => 'Simple Scalable Profile @ Level 0',
2484				0x11 => 'Simple Scalable Profile @ Level 1',
2485				0x12 => 'Simple Scalable Profile @ Level 2',
2486				0x15 => 'AVC/H264 Profile',
2487				0x21 => 'Core Profile @ Level 1',
2488				0x22 => 'Core Profile @ Level 2',
2489				0x32 => 'Main Profile @ Level 2',
2490				0x33 => 'Main Profile @ Level 3',
2491				0x34 => 'Main Profile @ Level 4',
2492				0x42 => 'N-bit Profile @ Level 2',
2493				0x51 => 'Scalable Texture Profile @ Level 1',
2494				0x61 => 'Simple Face Animation Profile @ Level 1',
2495				0x62 => 'Simple Face Animation Profile @ Level 2',
2496				0x63 => 'Simple FBA Profile @ Level 1',
2497				0x64 => 'Simple FBA Profile @ Level 2',
2498				0x71 => 'Basic Animated Texture Profile @ Level 1',
2499				0x72 => 'Basic Animated Texture Profile @ Level 2',
2500				0x81 => 'Hybrid Profile @ Level 1',
2501				0x82 => 'Hybrid Profile @ Level 2',
2502				0x91 => 'Advanced Real Time Simple Profile @ Level 1',
2503				0x92 => 'Advanced Real Time Simple Profile @ Level 2',
2504				0x93 => 'Advanced Real Time Simple Profile @ Level 3',
2505				0x94 => 'Advanced Real Time Simple Profile @ Level 4',
2506				0xA1 => 'Core Scalable Profile @ Level1',
2507				0xA2 => 'Core Scalable Profile @ Level2',
2508				0xA3 => 'Core Scalable Profile @ Level3',
2509				0xB1 => 'Advanced Coding Efficiency Profile @ Level 1',
2510				0xB2 => 'Advanced Coding Efficiency Profile @ Level 2',
2511				0xB3 => 'Advanced Coding Efficiency Profile @ Level 3',
2512				0xB4 => 'Advanced Coding Efficiency Profile @ Level 4',
2513				0xC1 => 'Advanced Core Profile @ Level 1',
2514				0xC2 => 'Advanced Core Profile @ Level 2',
2515				0xD1 => 'Advanced Scalable Texture @ Level1',
2516				0xD2 => 'Advanced Scalable Texture @ Level2',
2517				0xE1 => 'Simple Studio Profile @ Level 1',
2518				0xE2 => 'Simple Studio Profile @ Level 2',
2519				0xE3 => 'Simple Studio Profile @ Level 3',
2520				0xE4 => 'Simple Studio Profile @ Level 4',
2521				0xE5 => 'Core Studio Profile @ Level 1',
2522				0xE6 => 'Core Studio Profile @ Level 2',
2523				0xE7 => 'Core Studio Profile @ Level 3',
2524				0xE8 => 'Core Studio Profile @ Level 4',
2525				0xF0 => 'Advanced Simple Profile @ Level 0',
2526				0xF1 => 'Advanced Simple Profile @ Level 1',
2527				0xF2 => 'Advanced Simple Profile @ Level 2',
2528				0xF3 => 'Advanced Simple Profile @ Level 3',
2529				0xF4 => 'Advanced Simple Profile @ Level 4',
2530				0xF5 => 'Advanced Simple Profile @ Level 5',
2531				0xF7 => 'Advanced Simple Profile @ Level 3b',
2532				0xF8 => 'Fine Granularity Scalable Profile @ Level 0',
2533				0xF9 => 'Fine Granularity Scalable Profile @ Level 1',
2534				0xFA => 'Fine Granularity Scalable Profile @ Level 2',
2535				0xFB => 'Fine Granularity Scalable Profile @ Level 3',
2536				0xFC => 'Fine Granularity Scalable Profile @ Level 4',
2537				0xFD => 'Fine Granularity Scalable Profile @ Level 5',
2538				0xFE => 'Not part of MPEG-4 Visual profiles',
2539				0xFF => 'No visual capability required',
2540			);
2541		}
2542		return (isset($QuicktimeIODSvideoProfileNameLookup[$video_profile_id]) ? $QuicktimeIODSvideoProfileNameLookup[$video_profile_id] : 'ISO Reserved Profile');
2543	}
2544
2545	/**
2546	 * @param int $rtng
2547	 *
2548	 * @return string
2549	 */
2550	public function QuicktimeContentRatingLookup($rtng) {
2551		static $QuicktimeContentRatingLookup = array();
2552		if (empty($QuicktimeContentRatingLookup)) {
2553			$QuicktimeContentRatingLookup[0]  = 'None';
2554			$QuicktimeContentRatingLookup[2]  = 'Clean';
2555			$QuicktimeContentRatingLookup[4]  = 'Explicit';
2556		}
2557		return (isset($QuicktimeContentRatingLookup[$rtng]) ? $QuicktimeContentRatingLookup[$rtng] : 'invalid');
2558	}
2559
2560	/**
2561	 * @param int $akid
2562	 *
2563	 * @return string
2564	 */
2565	public function QuicktimeStoreAccountTypeLookup($akid) {
2566		static $QuicktimeStoreAccountTypeLookup = array();
2567		if (empty($QuicktimeStoreAccountTypeLookup)) {
2568			$QuicktimeStoreAccountTypeLookup[0] = 'iTunes';
2569			$QuicktimeStoreAccountTypeLookup[1] = 'AOL';
2570		}
2571		return (isset($QuicktimeStoreAccountTypeLookup[$akid]) ? $QuicktimeStoreAccountTypeLookup[$akid] : 'invalid');
2572	}
2573
2574	/**
2575	 * @param int $sfid
2576	 *
2577	 * @return string
2578	 */
2579	public function QuicktimeStoreFrontCodeLookup($sfid) {
2580		static $QuicktimeStoreFrontCodeLookup = array();
2581		if (empty($QuicktimeStoreFrontCodeLookup)) {
2582			$QuicktimeStoreFrontCodeLookup[143460] = 'Australia';
2583			$QuicktimeStoreFrontCodeLookup[143445] = 'Austria';
2584			$QuicktimeStoreFrontCodeLookup[143446] = 'Belgium';
2585			$QuicktimeStoreFrontCodeLookup[143455] = 'Canada';
2586			$QuicktimeStoreFrontCodeLookup[143458] = 'Denmark';
2587			$QuicktimeStoreFrontCodeLookup[143447] = 'Finland';
2588			$QuicktimeStoreFrontCodeLookup[143442] = 'France';
2589			$QuicktimeStoreFrontCodeLookup[143443] = 'Germany';
2590			$QuicktimeStoreFrontCodeLookup[143448] = 'Greece';
2591			$QuicktimeStoreFrontCodeLookup[143449] = 'Ireland';
2592			$QuicktimeStoreFrontCodeLookup[143450] = 'Italy';
2593			$QuicktimeStoreFrontCodeLookup[143462] = 'Japan';
2594			$QuicktimeStoreFrontCodeLookup[143451] = 'Luxembourg';
2595			$QuicktimeStoreFrontCodeLookup[143452] = 'Netherlands';
2596			$QuicktimeStoreFrontCodeLookup[143461] = 'New Zealand';
2597			$QuicktimeStoreFrontCodeLookup[143457] = 'Norway';
2598			$QuicktimeStoreFrontCodeLookup[143453] = 'Portugal';
2599			$QuicktimeStoreFrontCodeLookup[143454] = 'Spain';
2600			$QuicktimeStoreFrontCodeLookup[143456] = 'Sweden';
2601			$QuicktimeStoreFrontCodeLookup[143459] = 'Switzerland';
2602			$QuicktimeStoreFrontCodeLookup[143444] = 'United Kingdom';
2603			$QuicktimeStoreFrontCodeLookup[143441] = 'United States';
2604		}
2605		return (isset($QuicktimeStoreFrontCodeLookup[$sfid]) ? $QuicktimeStoreFrontCodeLookup[$sfid] : 'invalid');
2606	}
2607
2608	/**
2609	 * @param string $atom_data
2610	 *
2611	 * @return array
2612	 */
2613	public function QuicktimeParseNikonNCTG($atom_data) {
2614		// http://www.sno.phy.queensu.ca/~phil/exiftool/TagNames/Nikon.html#NCTG
2615		// Nikon-specific QuickTime tags found in the NCDT atom of MOV videos from some Nikon cameras such as the Coolpix S8000 and D5100
2616		// Data is stored as records of:
2617		// * 4 bytes record type
2618		// * 2 bytes size of data field type:
2619		//     0x0001 = flag   (size field *= 1-byte)
2620		//     0x0002 = char   (size field *= 1-byte)
2621		//     0x0003 = DWORD+ (size field *= 2-byte), values are stored CDAB
2622		//     0x0004 = QWORD+ (size field *= 4-byte), values are stored EFGHABCD
2623		//     0x0005 = float  (size field *= 8-byte), values are stored aaaabbbb where value is aaaa/bbbb; possibly multiple sets of values appended together
2624		//     0x0007 = bytes  (size field *= 1-byte), values are stored as ??????
2625		//     0x0008 = ?????  (size field *= 2-byte), values are stored as ??????
2626		// * 2 bytes data size field
2627		// * ? bytes data (string data may be null-padded; datestamp fields are in the format "2011:05:25 20:24:15")
2628		// all integers are stored BigEndian
2629
2630		$NCTGtagName = array(
2631			0x00000001 => 'Make',
2632			0x00000002 => 'Model',
2633			0x00000003 => 'Software',
2634			0x00000011 => 'CreateDate',
2635			0x00000012 => 'DateTimeOriginal',
2636			0x00000013 => 'FrameCount',
2637			0x00000016 => 'FrameRate',
2638			0x00000022 => 'FrameWidth',
2639			0x00000023 => 'FrameHeight',
2640			0x00000032 => 'AudioChannels',
2641			0x00000033 => 'AudioBitsPerSample',
2642			0x00000034 => 'AudioSampleRate',
2643			0x02000001 => 'MakerNoteVersion',
2644			0x02000005 => 'WhiteBalance',
2645			0x0200000b => 'WhiteBalanceFineTune',
2646			0x0200001e => 'ColorSpace',
2647			0x02000023 => 'PictureControlData',
2648			0x02000024 => 'WorldTime',
2649			0x02000032 => 'UnknownInfo',
2650			0x02000083 => 'LensType',
2651			0x02000084 => 'Lens',
2652		);
2653
2654		$offset = 0;
2655		$data = null;
2656		$datalength = strlen($atom_data);
2657		$parsed = array();
2658		while ($offset < $datalength) {
2659			$record_type       = getid3_lib::BigEndian2Int(substr($atom_data, $offset, 4));  $offset += 4;
2660			$data_size_type    = getid3_lib::BigEndian2Int(substr($atom_data, $offset, 2));  $offset += 2;
2661			$data_size         = getid3_lib::BigEndian2Int(substr($atom_data, $offset, 2));  $offset += 2;
2662			switch ($data_size_type) {
2663				case 0x0001: // 0x0001 = flag   (size field *= 1-byte)
2664					$data = getid3_lib::BigEndian2Int(substr($atom_data, $offset, $data_size * 1));
2665					$offset += ($data_size * 1);
2666					break;
2667				case 0x0002: // 0x0002 = char   (size field *= 1-byte)
2668					$data = substr($atom_data, $offset, $data_size * 1);
2669					$offset += ($data_size * 1);
2670					$data = rtrim($data, "\x00");
2671					break;
2672				case 0x0003: // 0x0003 = DWORD+ (size field *= 2-byte), values are stored CDAB
2673					$data = '';
2674					for ($i = $data_size - 1; $i >= 0; $i--) {
2675						$data .= substr($atom_data, $offset + ($i * 2), 2);
2676					}
2677					$data = getid3_lib::BigEndian2Int($data);
2678					$offset += ($data_size * 2);
2679					break;
2680				case 0x0004: // 0x0004 = QWORD+ (size field *= 4-byte), values are stored EFGHABCD
2681					$data = '';
2682					for ($i = $data_size - 1; $i >= 0; $i--) {
2683						$data .= substr($atom_data, $offset + ($i * 4), 4);
2684					}
2685					$data = getid3_lib::BigEndian2Int($data);
2686					$offset += ($data_size * 4);
2687					break;
2688				case 0x0005: // 0x0005 = float  (size field *= 8-byte), values are stored aaaabbbb where value is aaaa/bbbb; possibly multiple sets of values appended together
2689					$data = array();
2690					for ($i = 0; $i < $data_size; $i++) {
2691						$numerator    = getid3_lib::BigEndian2Int(substr($atom_data, $offset + ($i * 8) + 0, 4));
2692						$denomninator = getid3_lib::BigEndian2Int(substr($atom_data, $offset + ($i * 8) + 4, 4));
2693						if ($denomninator == 0) {
2694							$data[$i] = false;
2695						} else {
2696							$data[$i] = (double) $numerator / $denomninator;
2697						}
2698					}
2699					$offset += (8 * $data_size);
2700					if (count($data) == 1) {
2701						$data = $data[0];
2702					}
2703					break;
2704				case 0x0007: // 0x0007 = bytes  (size field *= 1-byte), values are stored as ??????
2705					$data = substr($atom_data, $offset, $data_size * 1);
2706					$offset += ($data_size * 1);
2707					break;
2708				case 0x0008: // 0x0008 = ?????  (size field *= 2-byte), values are stored as ??????
2709					$data = substr($atom_data, $offset, $data_size * 2);
2710					$offset += ($data_size * 2);
2711					break;
2712				default:
2713					echo 'QuicktimeParseNikonNCTG()::unknown $data_size_type: '.$data_size_type.'<br>';
2714					break 2;
2715			}
2716
2717			switch ($record_type) {
2718				case 0x00000011: // CreateDate
2719				case 0x00000012: // DateTimeOriginal
2720					$data = strtotime($data);
2721					break;
2722				case 0x0200001e: // ColorSpace
2723					switch ($data) {
2724						case 1:
2725							$data = 'sRGB';
2726							break;
2727						case 2:
2728							$data = 'Adobe RGB';
2729							break;
2730					}
2731					break;
2732				case 0x02000023: // PictureControlData
2733					$PictureControlAdjust = array(0=>'default', 1=>'quick', 2=>'full');
2734					$FilterEffect = array(0x80=>'off', 0x81=>'yellow', 0x82=>'orange',    0x83=>'red', 0x84=>'green',  0xff=>'n/a');
2735					$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');
2736					$data = array(
2737						'PictureControlVersion'     =>                           substr($data,  0,  4),
2738						'PictureControlName'        =>                     rtrim(substr($data,  4, 20), "\x00"),
2739						'PictureControlBase'        =>                     rtrim(substr($data, 24, 20), "\x00"),
2740						//'?'                       =>                           substr($data, 44,  4),
2741						'PictureControlAdjust'      => $PictureControlAdjust[ord(substr($data, 48,  1))],
2742						'PictureControlQuickAdjust' =>                       ord(substr($data, 49,  1)),
2743						'Sharpness'                 =>                       ord(substr($data, 50,  1)),
2744						'Contrast'                  =>                       ord(substr($data, 51,  1)),
2745						'Brightness'                =>                       ord(substr($data, 52,  1)),
2746						'Saturation'                =>                       ord(substr($data, 53,  1)),
2747						'HueAdjustment'             =>                       ord(substr($data, 54,  1)),
2748						'FilterEffect'              =>         $FilterEffect[ord(substr($data, 55,  1))],
2749						'ToningEffect'              =>         $ToningEffect[ord(substr($data, 56,  1))],
2750						'ToningSaturation'          =>                       ord(substr($data, 57,  1)),
2751					);
2752					break;
2753				case 0x02000024: // WorldTime
2754					// http://www.sno.phy.queensu.ca/~phil/exiftool/TagNames/Nikon.html#WorldTime
2755					// timezone is stored as offset from GMT in minutes
2756					$timezone = getid3_lib::BigEndian2Int(substr($data, 0, 2));
2757					if ($timezone & 0x8000) {
2758						$timezone = 0 - (0x10000 - $timezone);
2759					}
2760					$timezone /= 60;
2761
2762					$dst = (bool) getid3_lib::BigEndian2Int(substr($data, 2, 1));
2763					switch (getid3_lib::BigEndian2Int(substr($data, 3, 1))) {
2764						case 2:
2765							$datedisplayformat = 'D/M/Y'; break;
2766						case 1:
2767							$datedisplayformat = 'M/D/Y'; break;
2768						case 0:
2769						default:
2770							$datedisplayformat = 'Y/M/D'; break;
2771					}
2772
2773					$data = array('timezone'=>floatval($timezone), 'dst'=>$dst, 'display'=>$datedisplayformat);
2774					break;
2775				case 0x02000083: // LensType
2776					$data = array(
2777						//'_'  => $data,
2778						'mf' => (bool) ($data & 0x01),
2779						'd'  => (bool) ($data & 0x02),
2780						'g'  => (bool) ($data & 0x04),
2781						'vr' => (bool) ($data & 0x08),
2782					);
2783					break;
2784			}
2785			$tag_name = (isset($NCTGtagName[$record_type]) ? $NCTGtagName[$record_type] : '0x'.str_pad(dechex($record_type), 8, '0', STR_PAD_LEFT));
2786			$parsed[$tag_name] = $data;
2787		}
2788		return $parsed;
2789	}
2790
2791	/**
2792	 * @param string $keyname
2793	 * @param string|array $data
2794	 * @param string $boxname
2795	 *
2796	 * @return bool
2797	 */
2798	public function CopyToAppropriateCommentsSection($keyname, $data, $boxname='') {
2799		static $handyatomtranslatorarray = array();
2800		if (empty($handyatomtranslatorarray)) {
2801			// http://www.geocities.com/xhelmboyx/quicktime/formats/qtm-layout.txt
2802			// http://www.geocities.com/xhelmboyx/quicktime/formats/mp4-layout.txt
2803			// http://atomicparsley.sourceforge.net/mpeg-4files.html
2804			// https://code.google.com/p/mp4v2/wiki/iTunesMetadata
2805			$handyatomtranslatorarray["\xA9".'alb'] = 'album';               // iTunes 4.0
2806			$handyatomtranslatorarray["\xA9".'ART'] = 'artist';
2807			$handyatomtranslatorarray["\xA9".'art'] = 'artist';              // iTunes 4.0
2808			$handyatomtranslatorarray["\xA9".'aut'] = 'author';
2809			$handyatomtranslatorarray["\xA9".'cmt'] = 'comment';             // iTunes 4.0
2810			$handyatomtranslatorarray["\xA9".'com'] = 'comment';
2811			$handyatomtranslatorarray["\xA9".'cpy'] = 'copyright';
2812			$handyatomtranslatorarray["\xA9".'day'] = 'creation_date';       // iTunes 4.0
2813			$handyatomtranslatorarray["\xA9".'dir'] = 'director';
2814			$handyatomtranslatorarray["\xA9".'ed1'] = 'edit1';
2815			$handyatomtranslatorarray["\xA9".'ed2'] = 'edit2';
2816			$handyatomtranslatorarray["\xA9".'ed3'] = 'edit3';
2817			$handyatomtranslatorarray["\xA9".'ed4'] = 'edit4';
2818			$handyatomtranslatorarray["\xA9".'ed5'] = 'edit5';
2819			$handyatomtranslatorarray["\xA9".'ed6'] = 'edit6';
2820			$handyatomtranslatorarray["\xA9".'ed7'] = 'edit7';
2821			$handyatomtranslatorarray["\xA9".'ed8'] = 'edit8';
2822			$handyatomtranslatorarray["\xA9".'ed9'] = 'edit9';
2823			$handyatomtranslatorarray["\xA9".'enc'] = 'encoded_by';
2824			$handyatomtranslatorarray["\xA9".'fmt'] = 'format';
2825			$handyatomtranslatorarray["\xA9".'gen'] = 'genre';               // iTunes 4.0
2826			$handyatomtranslatorarray["\xA9".'grp'] = 'grouping';            // iTunes 4.2
2827			$handyatomtranslatorarray["\xA9".'hst'] = 'host_computer';
2828			$handyatomtranslatorarray["\xA9".'inf'] = 'information';
2829			$handyatomtranslatorarray["\xA9".'lyr'] = 'lyrics';              // iTunes 5.0
2830			$handyatomtranslatorarray["\xA9".'mak'] = 'make';
2831			$handyatomtranslatorarray["\xA9".'mod'] = 'model';
2832			$handyatomtranslatorarray["\xA9".'nam'] = 'title';               // iTunes 4.0
2833			$handyatomtranslatorarray["\xA9".'ope'] = 'composer';
2834			$handyatomtranslatorarray["\xA9".'prd'] = 'producer';
2835			$handyatomtranslatorarray["\xA9".'PRD'] = 'product';
2836			$handyatomtranslatorarray["\xA9".'prf'] = 'performers';
2837			$handyatomtranslatorarray["\xA9".'req'] = 'system_requirements';
2838			$handyatomtranslatorarray["\xA9".'src'] = 'source_credit';
2839			$handyatomtranslatorarray["\xA9".'swr'] = 'software';
2840			$handyatomtranslatorarray["\xA9".'too'] = 'encoding_tool';       // iTunes 4.0
2841			$handyatomtranslatorarray["\xA9".'trk'] = 'track_number';
2842			$handyatomtranslatorarray["\xA9".'url'] = 'url';
2843			$handyatomtranslatorarray["\xA9".'wrn'] = 'warning';
2844			$handyatomtranslatorarray["\xA9".'wrt'] = 'composer';
2845			$handyatomtranslatorarray['aART'] = 'album_artist';
2846			$handyatomtranslatorarray['apID'] = 'purchase_account';
2847			$handyatomtranslatorarray['catg'] = 'category';            // iTunes 4.9
2848			$handyatomtranslatorarray['covr'] = 'picture';             // iTunes 4.0
2849			$handyatomtranslatorarray['cpil'] = 'compilation';         // iTunes 4.0
2850			$handyatomtranslatorarray['cprt'] = 'copyright';           // iTunes 4.0?
2851			$handyatomtranslatorarray['desc'] = 'description';         // iTunes 5.0
2852			$handyatomtranslatorarray['disk'] = 'disc_number';         // iTunes 4.0
2853			$handyatomtranslatorarray['egid'] = 'episode_guid';        // iTunes 4.9
2854			$handyatomtranslatorarray['gnre'] = 'genre';               // iTunes 4.0
2855			$handyatomtranslatorarray['hdvd'] = 'hd_video';            // iTunes 4.0
2856			$handyatomtranslatorarray['ldes'] = 'description_long';    //
2857			$handyatomtranslatorarray['keyw'] = 'keyword';             // iTunes 4.9
2858			$handyatomtranslatorarray['pcst'] = 'podcast';             // iTunes 4.9
2859			$handyatomtranslatorarray['pgap'] = 'gapless_playback';    // iTunes 7.0
2860			$handyatomtranslatorarray['purd'] = 'purchase_date';       // iTunes 6.0.2
2861			$handyatomtranslatorarray['purl'] = 'podcast_url';         // iTunes 4.9
2862			$handyatomtranslatorarray['rtng'] = 'rating';              // iTunes 4.0
2863			$handyatomtranslatorarray['soaa'] = 'sort_album_artist';   //
2864			$handyatomtranslatorarray['soal'] = 'sort_album';          //
2865			$handyatomtranslatorarray['soar'] = 'sort_artist';         //
2866			$handyatomtranslatorarray['soco'] = 'sort_composer';       //
2867			$handyatomtranslatorarray['sonm'] = 'sort_title';          //
2868			$handyatomtranslatorarray['sosn'] = 'sort_show';           //
2869			$handyatomtranslatorarray['stik'] = 'stik';                // iTunes 4.9
2870			$handyatomtranslatorarray['tmpo'] = 'bpm';                 // iTunes 4.0
2871			$handyatomtranslatorarray['trkn'] = 'track_number';        // iTunes 4.0
2872			$handyatomtranslatorarray['tven'] = 'tv_episode_id';       //
2873			$handyatomtranslatorarray['tves'] = 'tv_episode';          // iTunes 6.0
2874			$handyatomtranslatorarray['tvnn'] = 'tv_network_name';     // iTunes 6.0
2875			$handyatomtranslatorarray['tvsh'] = 'tv_show_name';        // iTunes 6.0
2876			$handyatomtranslatorarray['tvsn'] = 'tv_season';           // iTunes 6.0
2877
2878			// boxnames:
2879			/*
2880			$handyatomtranslatorarray['iTunSMPB']                    = 'iTunSMPB';
2881			$handyatomtranslatorarray['iTunNORM']                    = 'iTunNORM';
2882			$handyatomtranslatorarray['Encoding Params']             = 'Encoding Params';
2883			$handyatomtranslatorarray['replaygain_track_gain']       = 'replaygain_track_gain';
2884			$handyatomtranslatorarray['replaygain_track_peak']       = 'replaygain_track_peak';
2885			$handyatomtranslatorarray['replaygain_track_minmax']     = 'replaygain_track_minmax';
2886			$handyatomtranslatorarray['MusicIP PUID']                = 'MusicIP PUID';
2887			$handyatomtranslatorarray['MusicBrainz Artist Id']       = 'MusicBrainz Artist Id';
2888			$handyatomtranslatorarray['MusicBrainz Album Id']        = 'MusicBrainz Album Id';
2889			$handyatomtranslatorarray['MusicBrainz Album Artist Id'] = 'MusicBrainz Album Artist Id';
2890			$handyatomtranslatorarray['MusicBrainz Track Id']        = 'MusicBrainz Track Id';
2891			$handyatomtranslatorarray['MusicBrainz Disc Id']         = 'MusicBrainz Disc Id';
2892
2893			// http://age.hobba.nl/audio/tag_frame_reference.html
2894			$handyatomtranslatorarray['PLAY_COUNTER']                = 'play_counter'; // Foobar2000 - https://www.getid3.org/phpBB3/viewtopic.php?t=1355
2895			$handyatomtranslatorarray['MEDIATYPE']                   = 'mediatype';    // Foobar2000 - https://www.getid3.org/phpBB3/viewtopic.php?t=1355
2896			*/
2897		}
2898		$info = &$this->getid3->info;
2899		$comment_key = '';
2900		if ($boxname && ($boxname != $keyname)) {
2901			$comment_key = (isset($handyatomtranslatorarray[$boxname]) ? $handyatomtranslatorarray[$boxname] : $boxname);
2902		} elseif (isset($handyatomtranslatorarray[$keyname])) {
2903			$comment_key = $handyatomtranslatorarray[$keyname];
2904		}
2905		if ($comment_key) {
2906			if ($comment_key == 'picture') {
2907				// already copied directly into [comments][picture] elsewhere, do not re-copy here
2908				return true;
2909			}
2910			$gooddata = array($data);
2911			if ($comment_key == 'genre') {
2912				// some other taggers separate multiple genres with semicolon, e.g. "Heavy Metal;Thrash Metal;Metal"
2913				$gooddata = explode(';', $data);
2914			}
2915			foreach ($gooddata as $data) {
2916				if (!empty($info['quicktime']['comments'][$comment_key]) && in_array($data, $info['quicktime']['comments'][$comment_key], true)) {
2917					// avoid duplicate copies of identical data
2918					continue;
2919				}
2920				$info['quicktime']['comments'][$comment_key][] = $data;
2921			}
2922		}
2923		return true;
2924	}
2925
2926	/**
2927	 * @param string $lstring
2928	 * @param int    $count
2929	 *
2930	 * @return string
2931	 */
2932	public function LociString($lstring, &$count) {
2933		// Loci strings are UTF-8 or UTF-16 and null (x00/x0000) terminated. UTF-16 has a BOM
2934		// Also need to return the number of bytes the string occupied so additional fields can be extracted
2935		$len = strlen($lstring);
2936		if ($len == 0) {
2937			$count = 0;
2938			return '';
2939		}
2940		if ($lstring[0] == "\x00") {
2941			$count = 1;
2942			return '';
2943		}
2944		// check for BOM
2945		if (($len > 2) && ((($lstring[0] == "\xFE") && ($lstring[1] == "\xFF")) || (($lstring[0] == "\xFF") && ($lstring[1] == "\xFE")))) {
2946			// UTF-16
2947			if (preg_match('/(.*)\x00/', $lstring, $lmatches)) {
2948				$count = strlen($lmatches[1]) * 2 + 2; //account for 2 byte characters and trailing \x0000
2949				return getid3_lib::iconv_fallback_utf16_utf8($lmatches[1]);
2950			} else {
2951				return '';
2952			}
2953		}
2954		// UTF-8
2955		if (preg_match('/(.*)\x00/', $lstring, $lmatches)) {
2956			$count = strlen($lmatches[1]) + 1; //account for trailing \x00
2957			return $lmatches[1];
2958		}
2959		return '';
2960	}
2961
2962	/**
2963	 * @param string $nullterminatedstring
2964	 *
2965	 * @return string
2966	 */
2967	public function NoNullString($nullterminatedstring) {
2968		// remove the single null terminator on null terminated strings
2969		if (substr($nullterminatedstring, strlen($nullterminatedstring) - 1, 1) === "\x00") {
2970			return substr($nullterminatedstring, 0, strlen($nullterminatedstring) - 1);
2971		}
2972		return $nullterminatedstring;
2973	}
2974
2975	/**
2976	 * @param string $pascalstring
2977	 *
2978	 * @return string
2979	 */
2980	public function Pascal2String($pascalstring) {
2981		// Pascal strings have 1 unsigned byte at the beginning saying how many chars (1-255) are in the string
2982		return substr($pascalstring, 1);
2983	}
2984
2985	/**
2986	 * @param string $pascalstring
2987	 *
2988	 * @return string
2989	 */
2990	public function MaybePascal2String($pascalstring) {
2991		// Pascal strings have 1 unsigned byte at the beginning saying how many chars (1-255) are in the string
2992		// Check if string actually is in this format or written incorrectly, straight string, or null-terminated string
2993		if (ord(substr($pascalstring, 0, 1)) == (strlen($pascalstring) - 1)) {
2994			return substr($pascalstring, 1);
2995		} elseif (substr($pascalstring, -1, 1) == "\x00") {
2996			// appears to be null-terminated instead of Pascal-style
2997			return substr($pascalstring, 0, -1);
2998		}
2999		return $pascalstring;
3000	}
3001
3002
3003	/**
3004	 * Helper functions for m4b audiobook chapters
3005	 * code by Steffen Hartmann 2015-Nov-08.
3006	 *
3007	 * @param array  $info
3008	 * @param string $tag
3009	 * @param string $history
3010	 * @param array  $result
3011	 */
3012	public function search_tag_by_key($info, $tag, $history, &$result) {
3013		foreach ($info as $key => $value) {
3014			$key_history = $history.'/'.$key;
3015			if ($key === $tag) {
3016				$result[] = array($key_history, $info);
3017			} else {
3018				if (is_array($value)) {
3019					$this->search_tag_by_key($value, $tag, $key_history, $result);
3020				}
3021			}
3022		}
3023	}
3024
3025	/**
3026	 * @param array  $info
3027	 * @param string $k
3028	 * @param string $v
3029	 * @param string $history
3030	 * @param array  $result
3031	 */
3032	public function search_tag_by_pair($info, $k, $v, $history, &$result) {
3033		foreach ($info as $key => $value) {
3034			$key_history = $history.'/'.$key;
3035			if (($key === $k) && ($value === $v)) {
3036				$result[] = array($key_history, $info);
3037			} else {
3038				if (is_array($value)) {
3039					$this->search_tag_by_pair($value, $k, $v, $key_history, $result);
3040				}
3041			}
3042		}
3043	}
3044
3045	/**
3046	 * @param array $info
3047	 *
3048	 * @return array
3049	 */
3050	public function quicktime_time_to_sample_table($info) {
3051		$res = array();
3052		$this->search_tag_by_pair($info['quicktime']['moov'], 'name', 'stbl', 'quicktime/moov', $res);
3053		foreach ($res as $value) {
3054			$stbl_res = array();
3055			$this->search_tag_by_pair($value[1], 'data_format', 'text', $value[0], $stbl_res);
3056			if (count($stbl_res) > 0) {
3057				$stts_res = array();
3058				$this->search_tag_by_key($value[1], 'time_to_sample_table', $value[0], $stts_res);
3059				if (count($stts_res) > 0) {
3060					return $stts_res[0][1]['time_to_sample_table'];
3061				}
3062			}
3063		}
3064		return array();
3065	}
3066
3067	/**
3068	 * @param array $info
3069	 *
3070	 * @return int
3071	 */
3072	public function quicktime_bookmark_time_scale($info) {
3073		$time_scale = '';
3074		$ts_prefix_len = 0;
3075		$res = array();
3076		$this->search_tag_by_pair($info['quicktime']['moov'], 'name', 'stbl', 'quicktime/moov', $res);
3077		foreach ($res as $value) {
3078			$stbl_res = array();
3079			$this->search_tag_by_pair($value[1], 'data_format', 'text', $value[0], $stbl_res);
3080			if (count($stbl_res) > 0) {
3081				$ts_res = array();
3082				$this->search_tag_by_key($info['quicktime']['moov'], 'time_scale', 'quicktime/moov', $ts_res);
3083				foreach ($ts_res as $sub_value) {
3084					$prefix = substr($sub_value[0], 0, -12);
3085					if ((substr($stbl_res[0][0], 0, strlen($prefix)) === $prefix) && ($ts_prefix_len < strlen($prefix))) {
3086						$time_scale = $sub_value[1]['time_scale'];
3087						$ts_prefix_len = strlen($prefix);
3088					}
3089				}
3090			}
3091		}
3092		return $time_scale;
3093	}
3094	/*
3095	// END helper functions for m4b audiobook chapters
3096	*/
3097
3098
3099}
3100