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/Vendor/getid3/module.audio-video.quicktime.php

https://bitbucket.org/nova-atlantis/simple-server-media-player
PHP | 2246 lines | 1853 code | 222 blank | 171 comment | 182 complexity | 272dfd6e4c391f20611a11d921e66eeb MD5 | raw file

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  1. <?php
    2. 

  2. /////////////////////////////////////////////////////////////////
    3. 

  3. /// getID3() by James Heinrich <info@getid3.org>               //
    4. 

  4. //  available at http://getid3.sourceforge.net                 //
    5. 

  5. //            or http://www.getid3.org                         //
    6. 

  6. //          also https://github.com/JamesHeinrich/getID3       //
    7. 

  7. /////////////////////////////////////////////////////////////////
    8. 

  8. // See readme.txt for more details                             //
    9. 

  9. /////////////////////////////////////////////////////////////////
    10. 

  10. //                                                             //
    11. 

  11. // module.audio-video.quicktime.php                            //
    12. 

  12. // module for analyzing Quicktime and MP3-in-MP4 files         //
    13. 

  13. // dependencies: module.audio.mp3.php                          //
    14. 

  14. // dependencies: module.tag.id3v2.php                          //
    15. 

  15. //                                                            ///
    16. 

  16. /////////////////////////////////////////////////////////////////
    17. 

  17. 

  18. getid3_lib::IncludeDependency(GETID3_INCLUDEPATH.'module.audio.mp3.php', __FILE__, true);
    19. 

  19. getid3_lib::IncludeDependency(GETID3_INCLUDEPATH.'module.tag.id3v2.php', __FILE__, true); // needed for ISO 639-2 language code lookup
    20. 

  20. 

  21. class getid3_quicktime extends getid3_handler
    22. 

  22. {
    23. 

  23. 

  24. 	public $ReturnAtomData        = true;
    25. 

  25. 	public $ParseAllPossibleAtoms = false;
    26. 

  26. 

  27. 	public function Analyze() {
    28. 

  28. 		$info = &$this->getid3->info;
    29. 

  29. 

  30. 		$info['fileformat'] = 'quicktime';
    31. 

  31. 		$info['quicktime']['hinting']    = false;
    32. 

  32. 		$info['quicktime']['controller'] = 'standard'; // may be overridden if 'ctyp' atom is present
    33. 

  33. 

  34. 		$this->fseek($info['avdataoffset']);
    35. 

  35. 

  36. 		$offset      = 0;
    37. 

  37. 		$atomcounter = 0;
    38. 

  38. 		$atom_data_read_buffer_size = ($info['php_memory_limit'] ? round($info['php_memory_limit'] / 2) : $this->getid3->option_fread_buffer_size * 1024); // allow [default: 32MB] if PHP configured with no memory_limit
    39. 

  39. 		while ($offset < $info['avdataend']) {
    40. 

  40. 			if (!getid3_lib::intValueSupported($offset)) {
    41. 

  41. 				$info['error'][] = 'Unable to parse atom at offset '.$offset.' because beyond '.round(PHP_INT_MAX / 1073741824).'GB limit of PHP filesystem functions';
    42. 

  42. 				break;
    43. 

  43. 			}
    44. 

  44. 			$this->fseek($offset);
    45. 

  45. 			$AtomHeader = $this->fread(8);
    46. 

  46. 

  47. 			$atomsize = getid3_lib::BigEndian2Int(substr($AtomHeader, 0, 4));
    48. 

  48. 			$atomname = substr($AtomHeader, 4, 4);
    49. 

  49. 

  50. 			// 64-bit MOV patch by jlegateØktnc*com
    51. 

  51. 			if ($atomsize == 1) {
    52. 

  52. 				$atomsize = getid3_lib::BigEndian2Int($this->fread(8));
    53. 

  53. 			}
    54. 

  54. 

  55. 			$info['quicktime'][$atomname]['name']   = $atomname;
    56. 

  56. 			$info['quicktime'][$atomname]['size']   = $atomsize;
    57. 

  57. 			$info['quicktime'][$atomname]['offset'] = $offset;
    58. 

  58. 

  59. 			if (($offset + $atomsize) > $info['avdataend']) {
    60. 

  60. 				$info['error'][] = 'Atom at offset '.$offset.' claims to go beyond end-of-file (length: '.$atomsize.' bytes)';
    61. 

  61. 				return false;
    62. 

  62. 			}
    63. 

  63. 

  64. 			if ($atomsize == 0) {
    65. 

  65. 				// Furthermore, for historical reasons the list of atoms is optionally
    66. 

  66. 				// terminated by a 32-bit integer set to 0. If you are writing a program
    67. 

  67. 				// to read user data atoms, you should allow for the terminating 0.
    68. 

  68. 				break;
    69. 

  69. 			}
    70. 

  70. 			$atomHierarchy = array();
    71. 

  71. 			$info['quicktime'][$atomname] = $this->QuicktimeParseAtom($atomname, $atomsize, $this->fread(min($atomsize, $atom_data_read_buffer_size)), $offset, $atomHierarchy, $this->ParseAllPossibleAtoms);
    72. 

  72. 

  73. 			$offset += $atomsize;
    74. 

  74. 			$atomcounter++;
    75. 

  75. 		}
    76. 

  76. 

  77. 		if (!empty($info['avdataend_tmp'])) {
    78. 

  78. 			// this value is assigned to a temp value and then erased because
    79. 

  79. 			// otherwise any atoms beyond the 'mdat' atom would not get parsed
    80. 

  80. 			$info['avdataend'] = $info['avdataend_tmp'];
    81. 

  81. 			unset($info['avdataend_tmp']);
    82. 

  82. 		}
    83. 

  83. 

  84. 		if (!isset($info['bitrate']) && isset($info['playtime_seconds'])) {
    85. 

  85. 			$info['bitrate'] = (($info['avdataend'] - $info['avdataoffset']) * 8) / $info['playtime_seconds'];
    86. 

  86. 		}
    87. 

  87. 		if (isset($info['bitrate']) && !isset($info['audio']['bitrate']) && !isset($info['quicktime']['video'])) {
    88. 

  88. 			$info['audio']['bitrate'] = $info['bitrate'];
    89. 

  89. 		}
    90. 

  90. 		if (!empty($info['playtime_seconds']) && !isset($info['video']['frame_rate']) && !empty($info['quicktime']['stts_framecount'])) {
    91. 

  91. 			foreach ($info['quicktime']['stts_framecount'] as $key => $samples_count) {
    92. 

  92. 				$samples_per_second = $samples_count / $info['playtime_seconds'];
    93. 

  93. 				if ($samples_per_second > 240) {
    94. 

  94. 					// has to be audio samples
    95. 

  95. 				} else {
    96. 

  96. 					$info['video']['frame_rate'] = $samples_per_second;
    97. 

  97. 					break;
    98. 

  98. 				}
    99. 

  99. 			}
    100. 

  100. 		}
    101. 

  101. 		if (($info['audio']['dataformat'] == 'mp4') && empty($info['video']['resolution_x'])) {
    102. 

  102. 			$info['fileformat'] = 'mp4';
    103. 

  103. 			$info['mime_type']  = 'audio/mp4';
    104. 

  104. 			unset($info['video']['dataformat']);
    105. 

  105. 		}
    106. 

  106. 

  107. 		if (!$this->ReturnAtomData) {
    108. 

  108. 			unset($info['quicktime']['moov']);
    109. 

  109. 		}
    110. 

  110. 

  111. 		if (empty($info['audio']['dataformat']) && !empty($info['quicktime']['audio'])) {
    112. 

  112. 			$info['audio']['dataformat'] = 'quicktime';
    113. 

  113. 		}
    114. 

  114. 		if (empty($info['video']['dataformat']) && !empty($info['quicktime']['video'])) {
    115. 

  115. 			$info['video']['dataformat'] = 'quicktime';
    116. 

  116. 		}
    117. 

  117. 

  118. 		return true;
    119. 

  119. 	}
    120. 

  120. 

  121. 	public function QuicktimeParseAtom($atomname, $atomsize, $atom_data, $baseoffset, &$atomHierarchy, $ParseAllPossibleAtoms) {
    122. 

  122. 		// http://developer.apple.com/techpubs/quicktime/qtdevdocs/APIREF/INDEX/atomalphaindex.htm
    123. 

  123. 

  124. 		$info = &$this->getid3->info;
    125. 

  125. 

  126. 		$atom_parent = end($atomHierarchy); // not array_pop($atomHierarchy); see http://www.getid3.org/phpBB3/viewtopic.php?t=1717
    127. 

  127. 		array_push($atomHierarchy, $atomname);
    128. 

  128. 		$atom_structure['hierarchy'] = implode(' ', $atomHierarchy);
    129. 

  129. 		$atom_structure['name']      = $atomname;
    130. 

  130. 		$atom_structure['size']      = $atomsize;
    131. 

  131. 		$atom_structure['offset']    = $baseoffset;
    132. 

  132. 		switch ($atomname) {
    133. 

  133. 			case 'moov': // MOVie container atom
    134. 

  134. 			case 'trak': // TRAcK container atom
    135. 

  135. 			case 'clip': // CLIPping container atom
    136. 

  136. 			case 'matt': // track MATTe container atom
    137. 

  137. 			case 'edts': // EDiTS container atom
    138. 

  138. 			case 'tref': // Track REFerence container atom
    139. 

  139. 			case 'mdia': // MeDIA container atom
    140. 

  140. 			case 'minf': // Media INFormation container atom
    141. 

  141. 			case 'dinf': // Data INFormation container atom
    142. 

  142. 			case 'udta': // User DaTA container atom
    143. 

  143. 			case 'cmov': // Compressed MOVie container atom
    144. 

  144. 			case 'rmra': // Reference Movie Record Atom
    145. 

  145. 			case 'rmda': // Reference Movie Descriptor Atom
    146. 

  146. 			case 'gmhd': // Generic Media info HeaDer atom (seen on QTVR)
    147. 

  147. 				$atom_structure['subatoms'] = $this->QuicktimeParseContainerAtom($atom_data, $baseoffset + 8, $atomHierarchy, $ParseAllPossibleAtoms);
    148. 

  148. 				break;
    149. 

  149. 

  150. 			case 'ilst': // Item LiST container atom
    151. 

  151. 				if ($atom_structure['subatoms'] = $this->QuicktimeParseContainerAtom($atom_data, $baseoffset + 8, $atomHierarchy, $ParseAllPossibleAtoms)) {
    152. 

  152. 					// some "ilst" atoms contain data atoms that have a numeric name, and the data is far more accessible if the returned array is compacted
    153. 

  153. 					$allnumericnames = true;
    154. 

  154. 					foreach ($atom_structure['subatoms'] as $subatomarray) {
    155. 

  155. 						if (!is_integer($subatomarray['name']) || (count($subatomarray['subatoms']) != 1)) {
    156. 

  156. 							$allnumericnames = false;
    157. 

  157. 							break;
    158. 

  158. 						}
    159. 

  159. 					}
    160. 

  160. 					if ($allnumericnames) {
    161. 

  161. 						$newData = array();
    162. 

  162. 						foreach ($atom_structure['subatoms'] as $subatomarray) {
    163. 

  163. 							foreach ($subatomarray['subatoms'] as $newData_subatomarray) {
    164. 

  164. 								unset($newData_subatomarray['hierarchy'], $newData_subatomarray['name']);
    165. 

  165. 								$newData[$subatomarray['name']] = $newData_subatomarray;
    166. 

  166. 								break;
    167. 

  167. 							}
    168. 

  168. 						}
    169. 

  169. 						$atom_structure['data'] = $newData;
    170. 

  170. 						unset($atom_structure['subatoms']);
    171. 

  171. 					}
    172. 

  172. 				}
    173. 

  173. 				break;
    174. 

  174. 

  175. 			case "\x00\x00\x00\x01":
    176. 

  176. 			case "\x00\x00\x00\x02":
    177. 

  177. 			case "\x00\x00\x00\x03":
    178. 

  178. 			case "\x00\x00\x00\x04":
    179. 

  179. 			case "\x00\x00\x00\x05":
    180. 

  180. 				$atomname = getid3_lib::BigEndian2Int($atomname);
    181. 

  181. 				$atom_structure['name'] = $atomname;
    182. 

  182. 				$atom_structure['subatoms'] = $this->QuicktimeParseContainerAtom($atom_data, $baseoffset + 8, $atomHierarchy, $ParseAllPossibleAtoms);
    183. 

  183. 				break;
    184. 

  184. 

  185. 			case 'stbl': // Sample TaBLe container atom
    186. 

  186. 				$atom_structure['subatoms'] = $this->QuicktimeParseContainerAtom($atom_data, $baseoffset + 8, $atomHierarchy, $ParseAllPossibleAtoms);
    187. 

  187. 				$isVideo = false;
    188. 

  188. 				$framerate  = 0;
    189. 

  189. 				$framecount = 0;
    190. 

  190. 				foreach ($atom_structure['subatoms'] as $key => $value_array) {
    191. 

  191. 					if (isset($value_array['sample_description_table'])) {
    192. 

  192. 						foreach ($value_array['sample_description_table'] as $key2 => $value_array2) {
    193. 

  193. 							if (isset($value_array2['data_format'])) {
    194. 

  194. 								switch ($value_array2['data_format']) {
    195. 

  195. 									case 'avc1':
    196. 

  196. 									case 'mp4v':
    197. 

  197. 										// video data
    198. 

  198. 										$isVideo = true;
    199. 

  199. 										break;
    200. 

  200. 									case 'mp4a':
    201. 

  201. 										// audio data
    202. 

  202. 										break;
    203. 

  203. 								}
    204. 

  204. 							}
    205. 

  205. 						}
    206. 

  206. 					} elseif (isset($value_array['time_to_sample_table'])) {
    207. 

  207. 						foreach ($value_array['time_to_sample_table'] as $key2 => $value_array2) {
    208. 

  208. 							if (isset($value_array2['sample_count']) && isset($value_array2['sample_duration']) && ($value_array2['sample_duration'] > 0)) {
    209. 

  209. 								$framerate  = round($info['quicktime']['time_scale'] / $value_array2['sample_duration'], 3);
    210. 

  210. 								$framecount = $value_array2['sample_count'];
    211. 

  211. 							}
    212. 

  212. 						}
    213. 

  213. 					}
    214. 

  214. 				}
    215. 

  215. 				if ($isVideo && $framerate) {
    216. 

  216. 					$info['quicktime']['video']['frame_rate'] = $framerate;
    217. 

  217. 					$info['video']['frame_rate'] = $info['quicktime']['video']['frame_rate'];
    218. 

  218. 				}
    219. 

  219. 				if ($isVideo && $framecount) {
    220. 

  220. 					$info['quicktime']['video']['frame_count'] = $framecount;
    221. 

  221. 				}
    222. 

  222. 				break;
    223. 

  223. 

  224. 

  225. 			case 'aART': // Album ARTist
    226. 

  226. 			case 'catg': // CaTeGory
    227. 

  227. 			case 'covr': // COVeR artwork
    228. 

  228. 			case 'cpil': // ComPILation
    229. 

  229. 			case 'cprt': // CoPyRighT
    230. 

  230. 			case 'desc': // DESCription
    231. 

  231. 			case 'disk': // DISK number
    232. 

  232. 			case 'egid': // Episode Global ID
    233. 

  233. 			case 'gnre': // GeNRE
    234. 

  234. 			case 'keyw': // KEYWord
    235. 

  235. 			case 'ldes':
    236. 

  236. 			case 'pcst': // PodCaST
    237. 

  237. 			case 'pgap': // GAPless Playback
    238. 

  238. 			case 'purd': // PURchase Date
    239. 

  239. 			case 'purl': // Podcast URL
    240. 

  240. 			case 'rati':
    241. 

  241. 			case 'rndu':
    242. 

  242. 			case 'rpdu':
    243. 

  243. 			case 'rtng': // RaTiNG
    244. 

  244. 			case 'stik':
    245. 

  245. 			case 'tmpo': // TeMPO (BPM)
    246. 

  246. 			case 'trkn': // TRacK Number
    247. 

  247. 			case 'tves': // TV EpiSode
    248. 

  248. 			case 'tvnn': // TV Network Name
    249. 

  249. 			case 'tvsh': // TV SHow Name
    250. 

  250. 			case 'tvsn': // TV SeasoN
    251. 

  251. 			case 'akID': // iTunes store account type
    252. 

  252. 			case 'apID':
    253. 

  253. 			case 'atID':
    254. 

  254. 			case 'cmID':
    255. 

  255. 			case 'cnID':
    256. 

  256. 			case 'geID':
    257. 

  257. 			case 'plID':
    258. 

  258. 			case 'sfID': // iTunes store country
    259. 

  259. 			case "\xA9".'alb': // ALBum
    260. 

  260. 			case "\xA9".'art': // ARTist
    261. 

  261. 			case "\xA9".'ART':
    262. 

  262. 			case "\xA9".'aut':
    263. 

  263. 			case "\xA9".'cmt': // CoMmenT
    264. 

  264. 			case "\xA9".'com': // COMposer
    265. 

  265. 			case "\xA9".'cpy':
    266. 

  266. 			case "\xA9".'day': // content created year
    267. 

  267. 			case "\xA9".'dir':
    268. 

  268. 			case "\xA9".'ed1':
    269. 

  269. 			case "\xA9".'ed2':
    270. 

  270. 			case "\xA9".'ed3':
    271. 

  271. 			case "\xA9".'ed4':
    272. 

  272. 			case "\xA9".'ed5':
    273. 

  273. 			case "\xA9".'ed6':
    274. 

  274. 			case "\xA9".'ed7':
    275. 

  275. 			case "\xA9".'ed8':
    276. 

  276. 			case "\xA9".'ed9':
    277. 

  277. 			case "\xA9".'enc':
    278. 

  278. 			case "\xA9".'fmt':
    279. 

  279. 			case "\xA9".'gen': // GENre
    280. 

  280. 			case "\xA9".'grp': // GRouPing
    281. 

  281. 			case "\xA9".'hst':
    282. 

  282. 			case "\xA9".'inf':
    283. 

  283. 			case "\xA9".'lyr': // LYRics
    284. 

  284. 			case "\xA9".'mak':
    285. 

  285. 			case "\xA9".'mod':
    286. 

  286. 			case "\xA9".'nam': // full NAMe
    287. 

  287. 			case "\xA9".'ope':
    288. 

  288. 			case "\xA9".'PRD':
    289. 

  289. 			case "\xA9".'prd':
    290. 

  290. 			case "\xA9".'prf':
    291. 

  291. 			case "\xA9".'req':
    292. 

  292. 			case "\xA9".'src':
    293. 

  293. 			case "\xA9".'swr':
    294. 

  294. 			case "\xA9".'too': // encoder
    295. 

  295. 			case "\xA9".'trk': // TRacK
    296. 

  296. 			case "\xA9".'url':
    297. 

  297. 			case "\xA9".'wrn':
    298. 

  298. 			case "\xA9".'wrt': // WRiTer
    299. 

  299. 			case '----': // itunes specific
    300. 

  300. 				if ($atom_parent == 'udta') {
    301. 

  301. 					// User data atom handler
    302. 

  302. 					$atom_structure['data_length'] = getid3_lib::BigEndian2Int(substr($atom_data, 0, 2));
    303. 

  303. 					$atom_structure['language_id'] = getid3_lib::BigEndian2Int(substr($atom_data, 2, 2));
    304. 

  304. 					$atom_structure['data']        =                           substr($atom_data, 4);
    305. 

  305. 

  306. 					$atom_structure['language']    = $this->QuicktimeLanguageLookup($atom_structure['language_id']);
    307. 

  307. 					if (empty($info['comments']['language']) || (!in_array($atom_structure['language'], $info['comments']['language']))) {
    308. 

  308. 						$info['comments']['language'][] = $atom_structure['language'];
    309. 

  309. 					}
    310. 

  310. 				} else {
    311. 

  311. 					// Apple item list box atom handler
    312. 

  312. 					$atomoffset = 0;
    313. 

  313. 					if (substr($atom_data, 2, 2) == "\x10\xB5") {
    314. 

  314. 						// not sure what it means, but observed on iPhone4 data.
    315. 

  315. 						// Each $atom_data has 2 bytes of datasize, plus 0x10B5, then data
    316. 

  316. 						while ($atomoffset < strlen($atom_data)) {
    317. 

  317. 							$boxsmallsize = getid3_lib::BigEndian2Int(substr($atom_data, $atomoffset,     2));
    318. 

  318. 							$boxsmalltype =                           substr($atom_data, $atomoffset + 2, 2);
    319. 

  319. 							$boxsmalldata =                           substr($atom_data, $atomoffset + 4, $boxsmallsize);
    320. 

  320. 							if ($boxsmallsize <= 1) {
    321. 

  321. 								$info['warning'][] = 'Invalid QuickTime atom smallbox size "'.$boxsmallsize.'" in atom "'.preg_replace('#[^a-zA-Z0-9 _\\-]#', '?', $atomname).'" at offset: '.($atom_structure['offset'] + $atomoffset);
    322. 

  322. 								$atom_structure['data'] = null;
    323. 

  323. 								$atomoffset = strlen($atom_data);
    324. 

  324. 								break;
    325. 

  325. 							}
    326. 

  326. 							switch ($boxsmalltype) {
    327. 

  327. 								case "\x10\xB5":
    328. 

  328. 									$atom_structure['data'] = $boxsmalldata;
    329. 

  329. 									break;
    330. 

  330. 								default:
    331. 

  331. 									$info['warning'][] = 'Unknown QuickTime smallbox type: "'.preg_replace('#[^a-zA-Z0-9 _\\-]#', '?', $boxsmalltype).'" ('.trim(getid3_lib::PrintHexBytes($boxsmalltype)).') at offset '.$baseoffset;
    332. 

  332. 									$atom_structure['data'] = $atom_data;
    333. 

  333. 									break;
    334. 

  334. 							}
    335. 

  335. 							$atomoffset += (4 + $boxsmallsize);
    336. 

  336. 						}
    337. 

  337. 					} else {
    338. 

  338. 						while ($atomoffset < strlen($atom_data)) {
    339. 

  339. 							$boxsize = getid3_lib::BigEndian2Int(substr($atom_data, $atomoffset, 4));
    340. 

  340. 							$boxtype =                           substr($atom_data, $atomoffset + 4, 4);
    341. 

  341. 							$boxdata =                           substr($atom_data, $atomoffset + 8, $boxsize - 8);
    342. 

  342. 							if ($boxsize <= 1) {
    343. 

  343. 								$info['warning'][] = 'Invalid QuickTime atom box size "'.$boxsize.'" in atom "'.preg_replace('#[^a-zA-Z0-9 _\\-]#', '?', $atomname).'" at offset: '.($atom_structure['offset'] + $atomoffset);
    344. 

  344. 								$atom_structure['data'] = null;
    345. 

  345. 								$atomoffset = strlen($atom_data);
    346. 

  346. 								break;
    347. 

  347. 							}
    348. 

  348. 							$atomoffset += $boxsize;
    349. 

  349. 

  350. 							switch ($boxtype) {
    351. 

  351. 								case 'mean':
    352. 

  352. 								case 'name':
    353. 

  353. 									$atom_structure[$boxtype] = substr($boxdata, 4);
    354. 

  354. 									break;
    355. 

  355. 

  356. 								case 'data':
    357. 

  357. 									$atom_structure['version']   = getid3_lib::BigEndian2Int(substr($boxdata,  0, 1));
    358. 

  358. 									$atom_structure['flags_raw'] = getid3_lib::BigEndian2Int(substr($boxdata,  1, 3));
    359. 

  359. 									switch ($atom_structure['flags_raw']) {
    360. 

  360. 										case  0: // data flag
    361. 

  361. 										case 21: // tmpo/cpil flag
    362. 

  362. 											switch ($atomname) {
    363. 

  363. 												case 'cpil':
    364. 

  364. 												case 'pcst':
    365. 

  365. 												case 'pgap':
    366. 

  366. 													$atom_structure['data'] = getid3_lib::BigEndian2Int(substr($boxdata, 8, 1));
    367. 

  367. 													break;
    368. 

  368. 

  369. 												case 'tmpo':
    370. 

  370. 													$atom_structure['data'] = getid3_lib::BigEndian2Int(substr($boxdata, 8, 2));
    371. 

  371. 													break;
    372. 

  372. 

  373. 												case 'disk':
    374. 

  374. 												case 'trkn':
    375. 

  375. 													$num       = getid3_lib::BigEndian2Int(substr($boxdata, 10, 2));
    376. 

  376. 													$num_total = getid3_lib::BigEndian2Int(substr($boxdata, 12, 2));
    377. 

  377. 													$atom_structure['data']  = empty($num) ? '' : $num;
    378. 

  378. 													$atom_structure['data'] .= empty($num_total) ? '' : '/'.$num_total;
    379. 

  379. 													break;
    380. 

  380. 

  381. 												case 'gnre':
    382. 

  382. 													$GenreID = getid3_lib::BigEndian2Int(substr($boxdata, 8, 4));
    383. 

  383. 													$atom_structure['data']    = getid3_id3v1::LookupGenreName($GenreID - 1);
    384. 

  384. 													break;
    385. 

  385. 

  386. 												case 'rtng':
    387. 

  387. 													$atom_structure[$atomname] = getid3_lib::BigEndian2Int(substr($boxdata, 8, 1));
    388. 

  388. 													$atom_structure['data']    = $this->QuicktimeContentRatingLookup($atom_structure[$atomname]);
    389. 

  389. 													break;
    390. 

  390. 

  391. 												case 'stik':
    392. 

  392. 													$atom_structure[$atomname] = getid3_lib::BigEndian2Int(substr($boxdata, 8, 1));
    393. 

  393. 													$atom_structure['data']    = $this->QuicktimeSTIKLookup($atom_structure[$atomname]);
    394. 

  394. 													break;
    395. 

  395. 

  396. 												case 'sfID':
    397. 

  397. 													$atom_structure[$atomname] = getid3_lib::BigEndian2Int(substr($boxdata, 8, 4));
    398. 

  398. 													$atom_structure['data']    = $this->QuicktimeStoreFrontCodeLookup($atom_structure[$atomname]);
    399. 

  399. 													break;
    400. 

  400. 

  401. 												case 'egid':
    402. 

  402. 												case 'purl':
    403. 

  403. 													$atom_structure['data'] = substr($boxdata, 8);
    404. 

  404. 													break;
    405. 

  405. 

  406. 												default:
    407. 

  407. 													$atom_structure['data'] = getid3_lib::BigEndian2Int(substr($boxdata, 8, 4));
    408. 

  408. 											}
    409. 

  409. 											break;
    410. 

  410. 

  411. 										case  1: // text flag
    412. 

  412. 										case 13: // image flag
    413. 

  413. 										default:
    414. 

  414. 											$atom_structure['data'] = substr($boxdata, 8);
    415. 

  415. 											if ($atomname == 'covr') {
    416. 

  416. 												// not a foolproof check, but better than nothing
    417. 

  417. 												if (preg_match('#^\xFF\xD8\xFF#', $atom_structure['data'])) {
    418. 

  418. 													$atom_structure['image_mime'] = 'image/jpeg';
    419. 

  419. 												} elseif (preg_match('#^\x89\x50\x4E\x47\x0D\x0A\x1A\x0A#', $atom_structure['data'])) {
    420. 

  420. 													$atom_structure['image_mime'] = 'image/png';
    421. 

  421. 												} elseif (preg_match('#^GIF#', $atom_structure['data'])) {
    422. 

  422. 													$atom_structure['image_mime'] = 'image/gif';
    423. 

  423. 												}
    424. 

  424. 											}
    425. 

  425. 											break;
    426. 

  426. 

  427. 									}
    428. 

  428. 									break;
    429. 

  429. 

  430. 								default:
    431. 

  431. 									$info['warning'][] = 'Unknown QuickTime box type: "'.preg_replace('#[^a-zA-Z0-9 _\\-]#', '?', $boxtype).'" ('.trim(getid3_lib::PrintHexBytes($boxtype)).') at offset '.$baseoffset;
    432. 

  432. 									$atom_structure['data'] = $atom_data;
    433. 

  433. 

  434. 							}
    435. 

  435. 						}
    436. 

  436. 					}
    437. 

  437. 				}
    438. 

  438. 				$this->CopyToAppropriateCommentsSection($atomname, $atom_structure['data'], $atom_structure['name']);
    439. 

  439. 				break;
    440. 

  440. 

  441. 

  442. 			case 'play': // auto-PLAY atom
    443. 

  443. 				$atom_structure['autoplay'] = (bool) getid3_lib::BigEndian2Int(substr($atom_data,  0, 1));
    444. 

  444. 

  445. 				$info['quicktime']['autoplay'] = $atom_structure['autoplay'];
    446. 

  446. 				break;
    447. 

  447. 

  448. 

  449. 			case 'WLOC': // Window LOCation atom
    450. 

  450. 				$atom_structure['location_x']  = getid3_lib::BigEndian2Int(substr($atom_data,  0, 2));
    451. 

  451. 				$atom_structure['location_y']  = getid3_lib::BigEndian2Int(substr($atom_data,  2, 2));
    452. 

  452. 				break;
    453. 

  453. 

  454. 

  455. 			case 'LOOP': // LOOPing atom
    456. 

  456. 			case 'SelO': // play SELection Only atom
    457. 

  457. 			case 'AllF': // play ALL Frames atom
    458. 

  458. 				$atom_structure['data'] = getid3_lib::BigEndian2Int($atom_data);
    459. 

  459. 				break;
    460. 

  460. 

  461. 

  462. 			case 'name': //
    463. 

  463. 			case 'MCPS': // Media Cleaner PRo
    464. 

  464. 			case '@PRM': // adobe PReMiere version
    465. 

  465. 			case '@PRQ': // adobe PRemiere Quicktime version
    466. 

  466. 				$atom_structure['data'] = $atom_data;
    467. 

  467. 				break;
    468. 

  468. 

  469. 

  470. 			case 'cmvd': // Compressed MooV Data atom
    471. 

  471. 				// Code by ubergeekØubergeek*tv based on information from
    472. 

  472. 				// http://developer.apple.com/quicktime/icefloe/dispatch012.html
    473. 

  473. 				$atom_structure['unCompressedSize'] = getid3_lib::BigEndian2Int(substr($atom_data, 0, 4));
    474. 

  474. 

  475. 				$CompressedFileData = substr($atom_data, 4);
    476. 

  476. 				if ($UncompressedHeader = @gzuncompress($CompressedFileData)) {
    477. 

  477. 					$atom_structure['subatoms'] = $this->QuicktimeParseContainerAtom($UncompressedHeader, 0, $atomHierarchy, $ParseAllPossibleAtoms);
    478. 

  478. 				} else {
    479. 

  479. 					$info['warning'][] = 'Error decompressing compressed MOV atom at offset '.$atom_structure['offset'];
    480. 

  480. 				}
    481. 

  481. 				break;
    482. 

  482. 

  483. 

  484. 			case 'dcom': // Data COMpression atom
    485. 

  485. 				$atom_structure['compression_id']   = $atom_data;
    486. 

  486. 				$atom_structure['compression_text'] = $this->QuicktimeDCOMLookup($atom_data);
    487. 

  487. 				break;
    488. 

  488. 

  489. 

  490. 			case 'rdrf': // Reference movie Data ReFerence atom
    491. 

  491. 				$atom_structure['version']                = getid3_lib::BigEndian2Int(substr($atom_data,  0, 1));
    492. 

  492. 				$atom_structure['flags_raw']              = getid3_lib::BigEndian2Int(substr($atom_data,  1, 3));
    493. 

  493. 				$atom_structure['flags']['internal_data'] = (bool) ($atom_structure['flags_raw'] & 0x000001);
    494. 

  494. 

  495. 				$atom_structure['reference_type_name']    =                           substr($atom_data,  4, 4);
    496. 

  496. 				$atom_structure['reference_length']       = getid3_lib::BigEndian2Int(substr($atom_data,  8, 4));
    497. 

  497. 				switch ($atom_structure['reference_type_name']) {
    498. 

  498. 					case 'url ':
    499. 

  499. 						$atom_structure['url']            =       $this->NoNullString(substr($atom_data, 12));
    500. 

  500. 						break;
    501. 

  501. 

  502. 					case 'alis':
    503. 

  503. 						$atom_structure['file_alias']     =                           substr($atom_data, 12);
    504. 

  504. 						break;
    505. 

  505. 

  506. 					case 'rsrc':
    507. 

  507. 						$atom_structure['resource_alias'] =                           substr($atom_data, 12);
    508. 

  508. 						break;
    509. 

  509. 

  510. 					default:
    511. 

  511. 						$atom_structure['data']           =                           substr($atom_data, 12);
    512. 

  512. 						break;
    513. 

  513. 				}
    514. 

  514. 				break;
    515. 

  515. 

  516. 

  517. 			case 'rmqu': // Reference Movie QUality atom
    518. 

  518. 				$atom_structure['movie_quality'] = getid3_lib::BigEndian2Int($atom_data);
    519. 

  519. 				break;
    520. 

  520. 

  521. 

  522. 			case 'rmcs': // Reference Movie Cpu Speed atom
    523. 

  523. 				$atom_structure['version']          = getid3_lib::BigEndian2Int(substr($atom_data,  0, 1));
    524. 

  524. 				$atom_structure['flags_raw']        = getid3_lib::BigEndian2Int(substr($atom_data,  1, 3)); // hardcoded: 0x0000
    525. 

  525. 				$atom_structure['cpu_speed_rating'] = getid3_lib::BigEndian2Int(substr($atom_data,  4, 2));
    526. 

  526. 				break;
    527. 

  527. 

  528. 

  529. 			case 'rmvc': // Reference Movie Version Check atom
    530. 

  530. 				$atom_structure['version']            = getid3_lib::BigEndian2Int(substr($atom_data,  0, 1));
    531. 

  531. 				$atom_structure['flags_raw']          = getid3_lib::BigEndian2Int(substr($atom_data,  1, 3)); // hardcoded: 0x0000
    532. 

  532. 				$atom_structure['gestalt_selector']   =                           substr($atom_data,  4, 4);
    533. 

  533. 				$atom_structure['gestalt_value_mask'] = getid3_lib::BigEndian2Int(substr($atom_data,  8, 4));
    534. 

  534. 				$atom_structure['gestalt_value']      = getid3_lib::BigEndian2Int(substr($atom_data, 12, 4));
    535. 

  535. 				$atom_structure['gestalt_check_type'] = getid3_lib::BigEndian2Int(substr($atom_data, 14, 2));
    536. 

  536. 				break;
    537. 

  537. 

  538. 

  539. 			case 'rmcd': // Reference Movie Component check atom
    540. 

  540. 				$atom_structure['version']                = getid3_lib::BigEndian2Int(substr($atom_data,  0, 1));
    541. 

  541. 				$atom_structure['flags_raw']              = getid3_lib::BigEndian2Int(substr($atom_data,  1, 3)); // hardcoded: 0x0000
    542. 

  542. 				$atom_structure['component_type']         =                           substr($atom_data,  4, 4);
    543. 

  543. 				$atom_structure['component_subtype']      =                           substr($atom_data,  8, 4);
    544. 

  544. 				$atom_structure['component_manufacturer'] =                           substr($atom_data, 12, 4);
    545. 

  545. 				$atom_structure['component_flags_raw']    = getid3_lib::BigEndian2Int(substr($atom_data, 16, 4));
    546. 

  546. 				$atom_structure['component_flags_mask']   = getid3_lib::BigEndian2Int(substr($atom_data, 20, 4));
    547. 

  547. 				$atom_structure['component_min_version']  = getid3_lib::BigEndian2Int(substr($atom_data, 24, 4));
    548. 

  548. 				break;
    549. 

  549. 

  550. 

  551. 			case 'rmdr': // Reference Movie Data Rate atom
    552. 

  552. 				$atom_structure['version']       = getid3_lib::BigEndian2Int(substr($atom_data,  0, 1));
    553. 

  553. 				$atom_structure['flags_raw']     = getid3_lib::BigEndian2Int(substr($atom_data,  1, 3)); // hardcoded: 0x0000
    554. 

  554. 				$atom_structure['data_rate']     = getid3_lib::BigEndian2Int(substr($atom_data,  4, 4));
    555. 

  555. 

  556. 				$atom_structure['data_rate_bps'] = $atom_structure['data_rate'] * 10;
    557. 

  557. 				break;
    558. 

  558. 

  559. 

  560. 			case 'rmla': // Reference Movie Language Atom
    561. 

  561. 				$atom_structure['version']     = getid3_lib::BigEndian2Int(substr($atom_data,  0, 1));
    562. 

  562. 				$atom_structure['flags_raw']   = getid3_lib::BigEndian2Int(substr($atom_data,  1, 3)); // hardcoded: 0x0000
    563. 

  563. 				$atom_structure['language_id'] = getid3_lib::BigEndian2Int(substr($atom_data,  4, 2));
    564. 

  564. 

  565. 				$atom_structure['language']    = $this->QuicktimeLanguageLookup($atom_structure['language_id']);
    566. 

  566. 				if (empty($info['comments']['language']) || (!in_array($atom_structure['language'], $info['comments']['language']))) {
    567. 

  567. 					$info['comments']['language'][] = $atom_structure['language'];
    568. 

  568. 				}
    569. 

  569. 				break;
    570. 

  570. 

  571. 

  572. 			case 'rmla': // Reference Movie Language Atom
    573. 

  573. 				$atom_structure['version']   = getid3_lib::BigEndian2Int(substr($atom_data,  0, 1));
    574. 

  574. 				$atom_structure['flags_raw'] = getid3_lib::BigEndian2Int(substr($atom_data,  1, 3)); // hardcoded: 0x0000
    575. 

  575. 				$atom_structure['track_id']  = getid3_lib::BigEndian2Int(substr($atom_data,  4, 2));
    576. 

  576. 				break;
    577. 

  577. 

  578. 

  579. 			case 'ptv ': // Print To Video - defines a movie's full screen mode
    580. 

  580. 				// http://developer.apple.com/documentation/QuickTime/APIREF/SOURCESIV/at_ptv-_pg.htm
    581. 

  581. 				$atom_structure['display_size_raw']  = getid3_lib::BigEndian2Int(substr($atom_data, 0, 2));
    582. 

  582. 				$atom_structure['reserved_1']        = getid3_lib::BigEndian2Int(substr($atom_data, 2, 2)); // hardcoded: 0x0000
    583. 

  583. 				$atom_structure['reserved_2']        = getid3_lib::BigEndian2Int(substr($atom_data, 4, 2)); // hardcoded: 0x0000
    584. 

  584. 				$atom_structure['slide_show_flag']   = getid3_lib::BigEndian2Int(substr($atom_data, 6, 1));
    585. 

  585. 				$atom_structure['play_on_open_flag'] = getid3_lib::BigEndian2Int(substr($atom_data, 7, 1));
    586. 

  586. 

  587. 				$atom_structure['flags']['play_on_open'] = (bool) $atom_structure['play_on_open_flag'];
    588. 

  588. 				$atom_structure['flags']['slide_show']   = (bool) $atom_structure['slide_show_flag'];
    589. 

  589. 

  590. 				$ptv_lookup[0] = 'normal';
    591. 

  591. 				$ptv_lookup[1] = 'double';
    592. 

  592. 				$ptv_lookup[2] = 'half';
    593. 

  593. 				$ptv_lookup[3] = 'full';
    594. 

  594. 				$ptv_lookup[4] = 'current';
    595. 

  595. 				if (isset($ptv_lookup[$atom_structure['display_size_raw']])) {
    596. 

  596. 					$atom_structure['display_size'] = $ptv_lookup[$atom_structure['display_size_raw']];
    597. 

  597. 				} else {
    598. 

  598. 					$info['warning'][] = 'unknown "ptv " display constant ('.$atom_structure['display_size_raw'].')';
    599. 

  599. 				}
    600. 

  600. 				break;
    601. 

  601. 

  602. 

  603. 			case 'stsd': // Sample Table Sample Description atom
    604. 

  604. 				$atom_structure['version']        = getid3_lib::BigEndian2Int(substr($atom_data,  0, 1));
    605. 

  605. 				$atom_structure['flags_raw']      = getid3_lib::BigEndian2Int(substr($atom_data,  1, 3)); // hardcoded: 0x0000
    606. 

  606. 				$atom_structure['number_entries'] = getid3_lib::BigEndian2Int(substr($atom_data,  4, 4));
    607. 

  607. 				$stsdEntriesDataOffset = 8;
    608. 

  608. 				for ($i = 0; $i < $atom_structure['number_entries']; $i++) {
    609. 

  609. 					$atom_structure['sample_description_table'][$i]['size']             = getid3_lib::BigEndian2Int(substr($atom_data, $stsdEntriesDataOffset, 4));
    610. 

  610. 					$stsdEntriesDataOffset += 4;
    611. 

  611. 					$atom_structure['sample_description_table'][$i]['data_format']      =                           substr($atom_data, $stsdEntriesDataOffset, 4);
    612. 

  612. 					$stsdEntriesDataOffset += 4;
    613. 

  613. 					$atom_structure['sample_description_table'][$i]['reserved']         = getid3_lib::BigEndian2Int(substr($atom_data, $stsdEntriesDataOffset, 6));
    614. 

  614. 					$stsdEntriesDataOffset += 6;
    615. 

  615. 					$atom_structure['sample_description_table'][$i]['reference_index']  = getid3_lib::BigEndian2Int(substr($atom_data, $stsdEntriesDataOffset, 2));
    616. 

  616. 					$stsdEntriesDataOffset += 2;
    617. 

  617. 					$atom_structure['sample_description_table'][$i]['data']             =                           substr($atom_data, $stsdEntriesDataOffset, ($atom_structure['sample_description_table'][$i]['size'] - 4 - 4 - 6 - 2));
    618. 

  618. 					$stsdEntriesDataOffset += ($atom_structure['sample_description_table'][$i]['size'] - 4 - 4 - 6 - 2);
    619. 

  619. 

  620. 					$atom_structure['sample_description_table'][$i]['encoder_version']  = getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'],  0, 2));
    621. 

  621. 					$atom_structure['sample_description_table'][$i]['encoder_revision'] = getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'],  2, 2));
    622. 

  622. 					$atom_structure['sample_description_table'][$i]['encoder_vendor']   =                           substr($atom_structure['sample_description_table'][$i]['data'],  4, 4);
    623. 

  623. 

  624. 					switch ($atom_structure['sample_description_table'][$i]['encoder_vendor']) {
    625. 

  625. 

  626. 						case "\x00\x00\x00\x00":
    627. 

  627. 							// audio tracks
    628. 

  628. 							$atom_structure['sample_description_table'][$i]['audio_channels']       =   getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'],  8,  2));
    629. 

  629. 							$atom_structure['sample_description_table'][$i]['audio_bit_depth']      =   getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'], 10,  2));
    630. 

  630. 							$atom_structure['sample_description_table'][$i]['audio_compression_id'] =   getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'], 12,  2));
    631. 

  631. 							$atom_structure['sample_description_table'][$i]['audio_packet_size']    =   getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'], 14,  2));
    632. 

  632. 							$atom_structure['sample_description_table'][$i]['audio_sample_rate']    = getid3_lib::FixedPoint16_16(substr($atom_structure['sample_description_table'][$i]['data'], 16,  4));
    633. 

  633. 

  634. 							// video tracks
    635. 

  635. 							// http://developer.apple.com/library/mac/#documentation/QuickTime/QTFF/QTFFChap3/qtff3.html
    636. 

  636. 							$atom_structure['sample_description_table'][$i]['temporal_quality'] =   getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'],  8,  4));
    637. 

  637. 							$atom_structure['sample_description_table'][$i]['spatial_quality']  =   getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'], 12,  4));
    638. 

  638. 							$atom_structure['sample_description_table'][$i]['width']            =   getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'], 16,  2));
    639. 

  639. 							$atom_structure['sample_description_table'][$i]['height']           =   getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'], 18,  2));
    640. 

  640. 							$atom_structure['sample_description_table'][$i]['resolution_x']     = getid3_lib::FixedPoint16_16(substr($atom_structure['sample_description_table'][$i]['data'], 24,  4));
    641. 

  641. 							$atom_structure['sample_description_table'][$i]['resolution_y']     = getid3_lib::FixedPoint16_16(substr($atom_structure['sample_description_table'][$i]['data'], 28,  4));
    642. 

  642. 							$atom_structure['sample_description_table'][$i]['data_size']        =   getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'], 32,  4));
    643. 

  643. 							$atom_structure['sample_description_table'][$i]['frame_count']      =   getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'], 36,  2));
    644. 

  644. 							$atom_structure['sample_description_table'][$i]['compressor_name']  =                             substr($atom_structure['sample_description_table'][$i]['data'], 38,  4);
    645. 

  645. 							$atom_structure['sample_description_table'][$i]['pixel_depth']      =   getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'], 42,  2));
    646. 

  646. 							$atom_structure['sample_description_table'][$i]['color_table_id']   =   getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'], 44,  2));
    647. 

  647. 

  648. 							switch ($atom_structure['sample_description_table'][$i]['data_format']) {
    649. 

  649. 								case '2vuY':
    650. 

  650. 								case 'avc1':
    651. 

  651. 								case 'cvid':
    652. 

  652. 								case 'dvc ':
    653. 

  653. 								case 'dvcp':
    654. 

  654. 								case 'gif ':
    655. 

  655. 								case 'h263':
    656. 

  656. 								case 'jpeg':
    657. 

  657. 								case 'kpcd':
    658. 

  658. 								case 'mjpa':
    659. 

  659. 								case 'mjpb':
    660. 

  660. 								case 'mp4v':
    661. 

  661. 								case 'png ':
    662. 

  662. 								case 'raw ':
    663. 

  663. 								case 'rle ':
    664. 

  664. 								case 'rpza':
    665. 

  665. 								case 'smc ':
    666. 

  666. 								case 'SVQ1':
    667. 

  667. 								case 'SVQ3':
    668. 

  668. 								case 'tiff':
    669. 

  669. 								case 'v210':
    670. 

  670. 								case 'v216':
    671. 

  671. 								case 'v308':
    672. 

  672. 								case 'v408':
    673. 

  673. 								case 'v410':
    674. 

  674. 								case 'yuv2':
    675. 

  675. 									$info['fileformat'] = 'mp4';
    676. 

  676. 									$info['video']['fourcc'] = $atom_structure['sample_description_table'][$i]['data_format'];
    677. 

  677. // http://www.getid3.org/phpBB3/viewtopic.php?t=1550
    678. 

  678. //if ((!empty($atom_structure['sample_description_table'][$i]['width']) && !empty($atom_structure['sample_description_table'][$i]['width'])) && (empty($info['video']['resolution_x']) || empty($info['video']['resolution_y']) || (number_format($info['video']['resolution_x'], 6) != number_format(round($info['video']['resolution_x']), 6)) || (number_format($info['video']['resolution_y'], 6) != number_format(round($info['video']['resolution_y']), 6)))) { // ugly check for floating point numbers
    679. 

  679. if (!empty($atom_structure['sample_description_table'][$i]['width']) && !empty($atom_structure['sample_description_table'][$i]['height'])) {
    680. 

  680. 	// assume that values stored here are more important than values stored in [tkhd] atom
    681. 

  681. 	$info['video']['resolution_x'] = $atom_structure['sample_description_table'][$i]['width'];
    682. 

  682. 	$info['video']['resolution_y'] = $atom_structure['sample_description_table'][$i]['height'];
    683. 

  683. 	$info['quicktime']['video']['resolution_x'] = $info['video']['resolution_x'];
    684. 

  684. 	$info['quicktime']['video']['resolution_y'] = $info['video']['resolution_y'];
    685. 

  685. }
    686. 

  686. 									break;
    687. 

  687. 

  688. 								case 'qtvr':
    689. 

  689. 									$info['video']['dataformat'] = 'quicktimevr';
    690. 

  690. 									break;
    691. 

  691. 

  692. 								case 'mp4a':
    693. 

  693. 								default:
    694. 

  694. 									$info['quicktime']['audio']['codec']       = $this->QuicktimeAudioCodecLookup($atom_structure['sample_description_table'][$i]['data_format']);
    695. 

  695. 									$info['quicktime']['audio']['sample_rate'] = $atom_structure['sample_description_table'][$i]['audio_sample_rate'];
    696. 

  696. 									$info['quicktime']['audio']['channels']    = $atom_structure['sample_description_table'][$i]['audio_channels'];
    697. 

  697. 									$info['quicktime']['audio']['bit_depth']   = $atom_structure['sample_description_table'][$i]['audio_bit_depth'];
    698. 

  698. 									$info['audio']['codec']                    = $info['quicktime']['audio']['codec'];
    699. 

  699. 									$info['audio']['sample_rate']              = $info['quicktime']['audio']['sample_rate'];
    700. 

  700. 									$info['audio']['channels']                 = $info['quicktime']['audio']['channels'];
    701. 

  701. 									$info['audio']['bits_per_sample']          = $info['quicktime']['audio']['bit_depth'];
    702. 

  702. 									switch ($atom_structure['sample_description_table'][$i]['data_format']) {
    703. 

  703. 										case 'raw ': // PCM
    704. 

  704. 										case 'alac': // Apple Lossless Audio Codec
    705. 

  705. 											$info['audio']['lossless'] = true;
    706. 

  706. 											break;
    707. 

  707. 										default:
    708. 

  708. 											$info['audio']['lossless'] = false;
    709. 

  709. 											break;
    710. 

  710. 									}
    711. 

  711. 									break;
    712. 

  712. 							}
    713. 

  713. 							break;
    714. 

  714. 

  715. 						default:
    716. 

  716. 							switch ($atom_structure['sample_description_table'][$i]['data_format']) {
    717. 

  717. 								case 'mp4s':
    718. 

  718. 									$info['fileformat'] = 'mp4';
    719. 

  719. 									break;
    720. 

  720. 

  721. 								default:
    722. 

  722. 									// video atom
    723. 

  723. 									$atom_structure['sample_description_table'][$i]['video_temporal_quality']  =   getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'],  8,  4));
    724. 

  724. 									$atom_structure['sample_description_table'][$i]['video_spatial_quality']   =   getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'], 12,  4));
    725. 

  725. 									$atom_structure['sample_description_table'][$i]['video_frame_width']       =   getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'], 16,  2));
    726. 

  726. 									$atom_structure['sample_description_table'][$i]['video_frame_height']      =   getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'], 18,  2));
    727. 

  727. 									$atom_structure['sample_description_table'][$i]['video_resolution_x']      = getid3_lib::FixedPoint16_16(substr($atom_structure['sample_description_table'][$i]['data'], 20,  4));
    728. 

  728. 									$atom_structure['sample_description_table'][$i]['video_resolution_y']      = getid3_lib::FixedPoint16_16(substr($atom_structure['sample_description_table'][$i]['data'], 24,  4));
    729. 

  729. 									$atom_structure['sample_description_table'][$i]['video_data_size']         =   getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'], 28,  4));
    730. 

  730. 									$atom_structure['sample_description_table'][$i]['video_frame_count']       =   getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'], 32,  2));
    731. 

  731. 									$atom_structure['sample_description_table'][$i]['video_encoder_name_len']  =   getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'], 34,  1));
    732. 

  732. 									$atom_structure['sample_description_table'][$i]['video_encoder_name']      =                             substr($atom_structure['sample_description_table'][$i]['data'], 35, $atom_structure['sample_description_table'][$i]['video_encoder_name_len']);
    733. 

  733. 									$atom_structure['sample_description_table'][$i]['video_pixel_color_depth'] =   getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'], 66,  2));
    734. 

  734. 									$atom_structure['sample_description_table'][$i]['video_color_table_id']    =   getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'], 68,  2));
    735. 

  735. 

  736. 									$atom_structure['sample_description_table'][$i]['video_pixel_color_type']  = (($atom_structure['sample_description_table'][$i]['video_pixel_color_depth'] > 32) ? 'grayscale' : 'color');
    737. 

  737. 									$atom_structure['sample_description_table'][$i]['video_pixel_color_name']  = $this->QuicktimeColorNameLookup($atom_structure['sample_description_table'][$i]['video_pixel_color_depth']);
    738. 

  738. 

  739. 									if ($atom_structure['sample_description_table'][$i]['video_pixel_color_name'] != 'invalid') {
    740. 

  740. 										$info['quicktime']['video']['codec_fourcc']        = $atom_structure['sample_description_table'][$i]['data_format'];
    741. 

  741. 										$info['quicktime']['video']['codec_fourcc_lookup'] = $this->QuicktimeVideoCodecLookup($atom_structure['sample_description_table'][$i]['data_format']);
    742. 

  742. 										$info['quicktime']['video']['codec']               = (($atom_structure['sample_description_table'][$i]['video_encoder_name_len'] > 0) ? $atom_structure['sample_description_table'][$i]['video_encoder_name'] : $atom_structure['sample_description_table'][$i]['data_format']);
    743. 

  743. 										$info['quicktime']['video']['color_depth']         = $atom_structure['sample_description_table'][$i]['video_pixel_color_depth'];
    744. 

  744. 										$info['quicktime']['video']['color_depth_name']    = $atom_structure['sample_description_table'][$i]['video_pixel_color_name'];
    745. 

  745. 

  746. 										$info['video']['codec']           = $info['quicktime']['video']['codec'];
    747. 

  747. 										$info['video']['bits_per_sample'] = $info['quicktime']['video']['color_depth'];
    748. 

  748. 									}
    749. 

  749. 									$info['video']['lossless']           = false;
    750. 

  750. 									$info['video']['pixel_aspect_ratio'] = (float) 1;
    751. 

  751. 									break;
    752. 

  752. 							}
    753. 

  753. 							break;
    754. 

  754. 					}
    755. 

  755. 					switch (strtolower($atom_structure['sample_description_table'][$i]['data_format'])) {
    756. 

  756. 						case 'mp4a':
    757. 

  757. 							$info['audio']['dataformat']         = 'mp4';
    758. 

  758. 							$info['quicktime']['audio']['codec'] = 'mp4';
    759. 

  759. 							break;
    760. 

  760. 

  761. 						case '3ivx':
    762. 

  762. 						case '3iv1':
    763. 

  763. 						case '3iv2':
    764. 

  764. 							$info['video']['dataformat'] = '3ivx';
    765. 

  765. 							break;
    766. 

  766. 

  767. 						case 'xvid':
    768. 

  768. 							$info['video']['dataformat'] = 'xvid';
    769. 

  769. 							break;
    770. 

  770. 

  771. 						case 'mp4v':
    772. 

  772. 							$info['video']['dataformat'] = 'mpeg4';
    773. 

  773. 							break;
    774. 

  774. 

  775. 						case 'divx':
    776. 

  776. 						case 'div1':
    777. 

  777. 						case 'div2':
    778. 

  778. 						case 'div3':
    779. 

  779. 						case 'div4':
    780. 

  780. 						case 'div5':
    781. 

  781. 						case 'div6':
    782. 

  782. 							$info['video']['dataformat'] = 'divx';
    783. 

  783. 							break;
    784. 

  784. 

  785. 						default:
    786. 

  786. 							// do nothing
    787. 

  787. 							break;
    788. 

  788. 					}
    789. 

  789. 					unset($atom_structure['sample_description_table'][$i]['data']);
    790. 

  790. 				}
    791. 

  791. 				break;
    792. 

  792. 

  793. 

  794. 			case 'stts': // Sample Table Time-to-Sample atom
    795. 

  795. 				$atom_structure['version']        = getid3_lib::BigEndian2Int(substr($atom_data,  0, 1));
    796. 

  796. 				$atom_structure['flags_raw']      = getid3_lib::BigEndian2Int(substr($atom_data,  1, 3)); // hardcoded: 0x0000
    797. 

  797. 				$atom_structure['number_entries'] = getid3_lib::BigEndian2Int(substr($atom_data,  4, 4));
    798. 

  798. 				$sttsEntriesDataOffset = 8;
    799. 

  799. 				//$FrameRateCalculatorArray = array();
    800. 

  800. 				$frames_count = 0;
    801. 

  801. 

  802. 				$max_stts_entries_to_scan = ($info['php_memory_limit'] ? min(floor($this->getid3->memory_limit / 10000), $atom_structure['number_entries']) : $atom_structure['number_entries']);
    803. 

  803. 				if ($max_stts_entries_to_scan < $atom_structure['number_entries']) {
    804. 

  804. 					$info['warning'][] = 'QuickTime atom "stts" has '.$atom_structure['number_entries'].' but only scanning the first '.$max_stts_entries_to_scan.' entries due to limited PHP memory available ('.floor($atom_structure['number_entries'] / 1048576).'MB).';
    805. 

  805. 				}
    806. 

  806. 				for ($i = 0; $i < $max_stts_entries_to_scan; $i++) {
    807. 

  807. 					$atom_structure['time_to_sample_table'][$i]['sample_count']    = getid3_lib::BigEndian2Int(substr($atom_data, $sttsEntriesDataOffset, 4));
    808. 

  808. 					$sttsEntriesDataOffset += 4;
    809. 

  809. 					$atom_structure['time_to_sample_table'][$i]['sample_duration'] = getid3_lib::BigEndian2Int(substr($atom_data, $sttsEntriesDataOffset, 4));
    810. 

  810. 					$sttsEntriesDataOffset += 4;
    811. 

  811. 

  812. 					$frames_count += $atom_structure['time_to_sample_table'][$i]['sample_count'];
    813. 

  813. 

  814. 					// THIS SECTION REPLACED WITH CODE IN "stbl" ATOM
    815. 

  815. 					//if (!empty($info['quicktime']['time_scale']) && ($atom_structure['time_to_sample_table'][$i]['sample_duration'] > 0)) {
    816. 

  816. 					//	$stts_new_framerate = $info['quicktime']['time_scale'] / $atom_structure['time_to_sample_table'][$i]['sample_duration'];
    817. 

  817. 					//	if ($stts_new_framerate <= 60) {
    818. 

  818. 					//		// some atoms have durations of "1" giving a very large framerate, which probably is not right
    819. 

  819. 					//		$info['video']['frame_rate'] = max($info['video']['frame_rate'], $stts_new_framerate);
    820. 

  820. 					//	}
    821. 

  821. 					//}
    822. 

  822. 					//
    823. 

  823. 					//$FrameRateCalculatorArray[($info['quicktime']['time_scale'] / $atom_structure['time_to_sample_table'][$i]['sample_duration'])] += $atom_structure['time_to_sample_table'][$i]['sample_count'];
    824. 

  824. 				}
    825. 

  825. 				$info['quicktime']['stts_framecount'][] = $frames_count;
    826. 

  826. 				//$sttsFramesTotal  = 0;
    827. 

  827. 				//$sttsSecondsTotal = 0;
    828. 

  828. 				//foreach ($FrameRateCalculatorArray as $frames_per_second => $frame_count) {
    829. 

  829. 				//	if (($frames_per_second > 60) || ($frames_per_second < 1)) {
    830. 

  830. 				//		// not video FPS information, probably audio information
    831. 

  831. 				//		$sttsFramesTotal  = 0;
    832. 

  832. 				//		$sttsSecondsTotal = 0;
    833. 

  833. 				//		break;
    834. 

  834. 				//	}
    835. 

  835. 				//	$sttsFramesTotal  += $frame_count;
    836. 

  836. 				//	$sttsSecondsTotal += $frame_count / $frames_per_second;
    837. 

  837. 				//}
    838. 

  838. 				//if (($sttsFramesTotal > 0) && ($sttsSecondsTotal > 0)) {
    839. 

  839. 				//	if (($sttsFramesTotal / $sttsSecondsTotal) > $info['video']['frame_rate']) {
    840. 

  840. 				//		$info['video']['frame_rate'] = $sttsFramesTotal / $sttsSecondsTotal;
    841. 

  841. 				//	}
    842. 

  842. 				//}
    843. 

  843. 				break;
    844. 

  844. 

  845. 

  846. 			case 'stss': // Sample Table Sync Sample (key frames) atom
    847. 

  847. 				if ($ParseAllPossibleAtoms) {
    848. 

  848. 					$atom_structure['version']        = getid3_lib::BigEndian2Int(substr($atom_data,  0, 1));
    849. 

  849. 					$atom_structure['flags_raw']      = getid3_lib::BigEndian2Int(substr($atom_data,  1, 3)); // hardcoded: 0x0000
    850. 

  850. 					$atom_structure['number_entries'] = getid3_lib::BigEndian2Int(substr($atom_data,  4, 4));
    851. 

  851. 					$stssEntriesDataOffset = 8;
    852. 

  852. 					for ($i = 0; $i < $atom_structure['number_entries']; $i++) {
    853. 

  853. 						$atom_structure['time_to_sample_table'][$i] = getid3_lib::BigEndian2Int(substr($atom_data, $stssEntriesDataOffset, 4));
    854. 

  854. 						$stssEntriesDataOffset += 4;
    855. 

  855. 					}
    856. 

  856. 				}
    857. 

  857. 				break;
    858. 

  858. 

  859. 

  860. 			case 'stsc': // Sample Table Sample-to-Chunk atom
    861. 

  861. 				if ($ParseAllPossibleAtoms) {
    862. 

  862. 					$atom_structure['version']        = getid3_lib::BigEndian2Int(substr($atom_data,  0, 1));
    863. 

  863. 					$atom_structure['flags_raw']      = getid3_lib::BigEndian2Int(substr($atom_data,  1, 3)); // hardcoded: 0x0000
    864. 

  864. 					$atom_structure['number_entries'] = getid3_lib::BigEndian2Int(substr($atom_data,  4, 4));
    865. 

  865. 					$stscEntriesDataOffset = 8;
    866. 

  866. 					for ($i = 0; $i < $atom_structure['number_entries']; $i++) {
    867. 

  867. 						$atom_structure['sample_to_chunk_table'][$i]['first_chunk']        = getid3_lib::BigEndian2Int(substr($atom_data, $stscEntriesDataOffset, 4));
    868. 

  868. 						$stscEntriesDataOffset += 4;
    869. 

  869. 						$atom_structure['sample_to_chunk_table'][$i]['samples_per_chunk']  = getid3_lib::BigEndian2Int(substr($atom_data, $stscEntriesDataOffset, 4));
    870. 

  870. 						$stscEntriesDataOffset += 4;
    871. 

  871. 						$atom_structure['sample_to_chunk_table'][$i]['sample_description'] = getid3_lib::BigEndian2Int(substr($atom_data, $stscEntriesDataOffset, 4));
    872. 

  872. 						$stscEntriesDataOffset += 4;
    873. 

  873. 					}
    874. 

  874. 				}
    875. 

  875. 				break;
    876. 

  876. 

  877. 

  878. 			case 'stsz': // Sample Table SiZe atom
    879. 

  879. 				if ($ParseAllPossibleAtoms) {
    880. 

  880. 					$atom_structure['version']        = getid3_lib::BigEndian2Int(substr($atom_data,  0, 1));
    881. 

  881. 					$atom_structure['flags_raw']      = getid3_lib::BigEndian2Int(substr($atom_data,  1, 3)); // hardcoded: 0x0000
    882. 

  882. 					$atom_structure['sample_size']    = getid3_lib::BigEndian2Int(substr($atom_data,  4, 4));
    883. 

  883. 					$atom_structure['number_entries'] = getid3_lib::BigEndian2Int(substr($atom_data,  8, 4));
    884. 

  884. 					$stszEntriesDataOffset = 12;
    885. 

  885. 					if ($atom_structure['sample_size'] == 0) {
    886. 

  886. 						for ($i = 0; $i < $atom_structure['number_entries']; $i++) {
    887. 

  887. 							$atom_structure['sample_size_table'][$i] = getid3_lib::BigEndian2Int(substr($atom_data, $stszEntriesDataOffset, 4));
    888. 

  888. 							$stszEntriesDataOffset += 4;
    889. 

  889. 						}
    890. 

  890. 					}
    891. 

  891. 				}
    892. 

  892. 				break;
    893. 

  893. 

  894. 

  895. 			case 'stco': // Sample Table Chunk Offset atom
    896. 

  896. 				if ($ParseAllPossibleAtoms) {
    897. 

  897. 					$atom_structure['version']        = getid3_lib::BigEndian2Int(substr($atom_data,  0, 1));
    898. 

  898. 					$atom_structure['flags_raw']      = getid3_lib::BigEndian2Int(substr($atom_data,  1, 3)); // hardcoded: 0x0000
    899. 

  899. 					$atom_structure['number_entries'] = getid3_lib::BigEndian2Int(substr($atom_data,  4, 4));
    900. 

  900. 					$stcoEntriesDataOffset = 8;
    901. 

  901. 					for ($i = 0; $i < $atom_structure['number_entries']; $i++) {
    902. 

  902. 						$atom_structure['chunk_offset_table'][$i] = getid3_lib::BigEndian2Int(substr($atom_data, $stcoEntriesDataOffset, 4));
    903. 

  903. 						$stcoEntriesDataOffset += 4;
    904. 

  904. 					}
    905. 

  905. 				}
    906. 

  906. 				break;
    907. 

  907. 

  908. 

  909. 			case 'co64': // Chunk Offset 64-bit (version of "stco" that supports > 2GB files)
    910. 

  910. 				if ($ParseAllPossibleAtoms) {
    911. 

  911. 					$atom_structure['version']        = getid3_lib::BigEndian2Int(substr($atom_data,  0, 1));
    912. 

  912. 					$atom_structure['flags_raw']      = getid3_lib::BigEndian2Int(substr($atom_data,  1, 3)); // hardcoded: 0x0000
    913. 

  913. 					$atom_structure['number_entries'] = getid3_lib::BigEndian2Int(substr($atom_data,  4, 4));
    914. 

  914. 					$stcoEntriesDataOffset = 8;
    915. 

  915. 					for ($i = 0; $i < $atom_structure['number_entries']; $i++) {
    916. 

  916. 						$atom_structure['chunk_offset_table'][$i] = getid3_lib::BigEndian2Int(substr($atom_data, $stcoEntriesDataOffset, 8));
    917. 

  917. 						$stcoEntriesDataOffset += 8;
    918. 

  918. 					}
    919. 

  919. 				}
    920. 

  920. 				break;
    921. 

  921. 

  922. 

  923. 			case 'dref': // Data REFerence atom
    924. 

  924. 				$atom_structure['version']        = getid3_lib::BigEndian2Int(substr($atom_data,  0, 1));
    925. 

  925. 				$atom_structure['flags_raw']      = getid3_lib::BigEndian2Int(substr($atom_data,  1, 3)); // hardcoded: 0x0000
    926. 

  926. 				$atom_structure['number_entries'] = getid3_lib::BigEndian2Int(substr($atom_data,  4, 4));
    927. 

  927. 				$drefDataOffset = 8;
    928. 

  928. 				for ($i = 0; $i < $atom_structure['number_entries']; $i++) {
    929. 

  929. 					$atom_structure['data_references'][$i]['size']                    = getid3_lib::BigEndian2Int(substr($atom_data, $drefDataOffset, 4));
    930. 

  930. 					$drefDataOffset += 4;
    931. 

  931. 					$atom_structure['data_references'][$i]['type']                    =               substr($atom_data, $drefDataOffset, 4);
    932. 

  932. 					$drefDataOffset += 4;
    933. 

  933. 					$atom_structure['data_references'][$i]['version']                 = getid3_lib::BigEndian2Int(substr($atom_data,  $drefDataOffset, 1));
    934. 

  934. 					$drefDataOffset += 1;
    935. 

  935. 					$atom_structure['data_references'][$i]['flags_raw']               = getid3_lib::BigEndian2Int(substr($atom_data,  $drefDataOffset, 3)); // hardcoded: 0x0000
    936. 

  936. 					$drefDataOffset += 3;
    937. 

  937. 					$atom_structure['data_references'][$i]['data']                    =               substr($atom_data, $drefDataOffset, ($atom_structure['data_references'][$i]['size'] - 4 - 4 - 1 - 3));
    938. 

  938. 					$drefDataOffset += ($atom_structure['data_references'][$i]['size'] - 4 - 4 - 1 - 3);
    939. 

  939. 

  940. 					$atom_structure['data_references'][$i]['flags']['self_reference'] = (bool) ($atom_structure['data_references'][$i]['flags_raw'] & 0x001);
    941. 

  941. 				}
    942. 

  942. 				break;
    943. 

  943. 

  944. 

  945. 			case 'gmin': // base Media INformation atom
    946. 

  946. 				$atom_structure['version']                = getid3_lib::BigEndian2Int(substr($atom_data,  0, 1));
    947. 

  947. 				$atom_structure['flags_raw']              = getid3_lib::BigEndian2Int(substr($atom_data,  1, 3)); // hardcoded: 0x0000
    948. 

  948. 				$atom_structure['graphics_mode']          = getid3_lib::BigEndian2Int(substr($atom_data,  4, 2));
    949. 

  949. 				$atom_structure['opcolor_red']            = getid3_lib::BigEndian2Int(substr($atom_data,  6, 2));
    950. 

  950. 				$atom_structure['opcolor_green']          = getid3_lib::BigEndian2Int(substr($atom_data,  8, 2));
    951. 

  951. 				$atom_structure['opcolor_blue']           = getid3_lib::BigEndian2Int(substr($atom_data, 10, 2));
    952. 

  952. 				$atom_structure['balance']                = getid3_lib::BigEndian2Int(substr($atom_data, 12, 2));
    953. 

  953. 				$atom_structure['reserved']               = getid3_lib::BigEndian2Int(substr($atom_data, 14, 2));
    954. 

  954. 				break;
    955. 

  955. 

  956. 

  957. 			case 'smhd': // Sound Media information HeaDer atom
    958. 

  958. 				$atom_structure['version']                = getid3_lib::BigEndian2Int(substr($atom_data,  0, 1));
    959. 

  959. 				$atom_structure['flags_raw']              = getid3_lib::BigEndian2Int(substr($atom_data,  1, 3)); // hardcoded: 0x0000
    960. 

  960. 				$atom_structure['balance']                = getid3_lib::BigEndian2Int(substr($atom_data,  4, 2));
    961. 

  961. 				$atom_structure['reserved']               = getid3_lib::BigEndian2Int(substr($atom_data,  6, 2));
    962. 

  962. 				break;
    963. 

  963. 

  964. 

  965. 			case 'vmhd': // Video Media information HeaDer atom
    966. 

  966. 				$atom_structure['version']                = getid3_lib::BigEndian2Int(substr($atom_data,  0, 1));
    967. 

  967. 				$atom_structure['flags_raw']              = getid3_lib::BigEndian2Int(substr($atom_data,  1, 3));
    968. 

  968. 				$atom_structure['graphics_mode']          = getid3_lib::BigEndian2Int(substr($atom_data,  4, 2));
    969. 

  969. 				$atom_structure['opcolor_red']            = getid3_lib::BigEndian2Int(substr($atom_data,  6, 2));
    970. 

  970. 				$atom_structure['opcolor_green']          = getid3_lib::BigEndian2Int(substr($atom_data,  8, 2));
    971. 

  971. 				$atom_structure['opcolor_blue']           = getid3_lib::BigEndian2Int(substr($atom_data, 10, 2));
    972. 

  972. 

  973. 				$atom_structure['flags']['no_lean_ahead'] = (bool) ($atom_structure['flags_raw'] & 0x001);
    974. 

  974. 				break;
    975. 

  975. 

  976. 

  977. 			case 'hdlr': // HanDLeR reference atom
    978. 

  978. 				$atom_structure['version']                = getid3_lib::BigEndian2Int(substr($atom_data,  0, 1));
    979. 

  979. 				$atom_structure['flags_raw']              = getid3_lib::BigEndian2Int(substr($atom_data,  1, 3)); // hardcoded: 0x0000
    980. 

  980. 				$atom_structure['component_type']         =                           substr($atom_data,  4, 4);
    981. 

  981. 				$atom_structure['component_subtype']      =        …
    982.

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