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

https://bitbucket.org/holyfield/getid3
PHP | 2128 lines | 1817 code | 179 blank | 132 comment | 168 complexity | 39948e0652f76cc9045d7e55f51e9452 MD5 | raw file
Possible License(s): GPL-2.0

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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. /////////////////////////////////////////////////////////////////
    7. 

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

  8. /////////////////////////////////////////////////////////////////
    9. 

  9. //                                                             //
    10. 

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

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

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

  13. //                                                            ///
    14. 

  14. /////////////////////////////////////////////////////////////////
    15. 

  15. 

  16. 

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

  18. 

  19. class getid3_quicktime extends getid3_handler {
    20. 

  20. 	
    21. 

  21. 	var $ReturnAtomData = true;
    22. 

  22. 	var $ParseAllPossibleAtoms = false;
    23. 

  23. 	
    24. 

  24. 	function Analyze() {
    25. 

  25. 		$info = &$this->getid3->info;
    26. 

  26. 		
    27. 

  27. 		$info ['fileformat'] = 'quicktime';
    28. 

  28. 		$info ['quicktime'] ['hinting'] = false;
    29. 

  29. 		$info ['quicktime'] ['controller'] = 'standard'; // may be overridden if 'ctyp' atom is present
    30. 

  30. 		
    31. 

  31. 

  32. 		fseek ( $this->getid3->fp, $info ['avdataoffset'], SEEK_SET );
    33. 

  33. 		
    34. 

  34. 		$offset = 0;
    35. 

  35. 		$atomcounter = 0;
    36. 

  36. 		
    37. 

  37. 		while ( $offset < $info ['avdataend'] ) {
    38. 

  38. 			if (! getid3_lib::intValueSupported ( $offset )) {
    39. 

  39. 				$info ['error'] [] = 'Unable to parse atom at offset ' . $offset . ' because beyond ' . round ( PHP_INT_MAX / 1073741824 ) . 'GB limit of PHP filesystem functions';
    40. 

  40. 				break;
    41. 

  41. 			}
    42. 

  42. 			fseek ( $this->getid3->fp, $offset, SEEK_SET );
    43. 

  43. 			$AtomHeader = fread ( $this->getid3->fp, 8 );
    44. 

  44. 			
    45. 

  45. 			$atomsize = getid3_lib::BigEndian2Int ( substr ( $AtomHeader, 0, 4 ) );
    46. 

  46. 			$atomname = substr ( $AtomHeader, 4, 4 );
    47. 

  47. 			
    48. 

  48. 			// 64-bit MOV patch by jlegateØktnc*com
    49. 

  49. 			if ($atomsize == 1) {
    50. 

  50. 				$atomsize = getid3_lib::BigEndian2Int ( fread ( $this->getid3->fp, 8 ) );
    51. 

  51. 			}
    52. 

  52. 			
    53. 

  53. 			$info ['quicktime'] [$atomname] ['name'] = $atomname;
    54. 

  54. 			$info ['quicktime'] [$atomname] ['size'] = $atomsize;
    55. 

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

  56. 			
    57. 

  57. 			if (($offset + $atomsize) > $info ['avdataend']) {
    58. 

  58. 				$info ['error'] [] = 'Atom at offset ' . $offset . ' claims to go beyond end-of-file (length: ' . $atomsize . ' bytes)';
    59. 

  59. 				return false;
    60. 

  60. 			}
    61. 

  61. 			
    62. 

  62. 			if ($atomsize == 0) {
    63. 

  63. 				// Furthermore, for historical reasons the list of atoms is optionally
    64. 

  64. 				// terminated by a 32-bit integer set to 0. If you are writing a program
    65. 

  65. 				// to read user data atoms, you should allow for the terminating 0.
    66. 

  66. 				break;
    67. 

  67. 			}
    68. 

  68. 			switch ($atomname) {
    69. 

  69. 				case 'mdat' : // Media DATa atom
    70. 

  70. 					// 'mdat' contains the actual data for the audio/video
    71. 

  71. 					if (($atomsize > 8) && (! isset ( $info ['avdataend_tmp'] ) || ($info ['quicktime'] [$atomname] ['size'] > ($info ['avdataend_tmp'] - $info ['avdataoffset'])))) {
    72. 

  72. 						
    73. 

  73. 						$info ['avdataoffset'] = $info ['quicktime'] [$atomname] ['offset'] + 8;
    74. 

  74. 						$OldAVDataEnd = $info ['avdataend'];
    75. 

  75. 						$info ['avdataend'] = $info ['quicktime'] [$atomname] ['offset'] + $info ['quicktime'] [$atomname] ['size'];
    76. 

  76. 						
    77. 

  77. 						$getid3_temp = new getID3 ();
    78. 

  78. 						$getid3_temp->openfile ( $this->getid3->filename );
    79. 

  79. 						$getid3_temp->info ['avdataoffset'] = $info ['avdataoffset'];
    80. 

  80. 						$getid3_temp->info ['avdataend'] = $info ['avdataend'];
    81. 

  81. 						$getid3_mp3 = new getid3_mp3 ( $getid3_temp );
    82. 

  82. 						if ($getid3_mp3->MPEGaudioHeaderValid ( $getid3_mp3->MPEGaudioHeaderDecode ( fread ( $this->getid3->fp, 4 ) ) )) {
    83. 

  83. 							$getid3_mp3->getOnlyMPEGaudioInfo ( $getid3_temp->info ['avdataoffset'], false );
    84. 

  84. 							if (! empty ( $getid3_temp->info ['warning'] )) {
    85. 

  85. 								foreach ( $getid3_temp->info ['warning'] as $value ) {
    86. 

  86. 									$info ['warning'] [] = $value;
    87. 

  87. 								}
    88. 

  88. 							}
    89. 

  89. 							if (! empty ( $getid3_temp->info ['mpeg'] )) {
    90. 

  90. 								$info ['mpeg'] = $getid3_temp->info ['mpeg'];
    91. 

  91. 								if (isset ( $info ['mpeg'] ['audio'] )) {
    92. 

  92. 									$info ['audio'] ['dataformat'] = 'mp3';
    93. 

  93. 									$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')));
    94. 

  94. 									$info ['audio'] ['sample_rate'] = $info ['mpeg'] ['audio'] ['sample_rate'];
    95. 

  95. 									$info ['audio'] ['channels'] = $info ['mpeg'] ['audio'] ['channels'];
    96. 

  96. 									$info ['audio'] ['bitrate'] = $info ['mpeg'] ['audio'] ['bitrate'];
    97. 

  97. 									$info ['audio'] ['bitrate_mode'] = strtolower ( $info ['mpeg'] ['audio'] ['bitrate_mode'] );
    98. 

  98. 									$info ['bitrate'] = $info ['audio'] ['bitrate'];
    99. 

  99. 								}
    100. 

  100. 							}
    101. 

  101. 						}
    102. 

  102. 						unset ( $getid3_mp3, $getid3_temp );
    103. 

  103. 						$info ['avdataend'] = $OldAVDataEnd;
    104. 

  104. 						unset ( $OldAVDataEnd );
    105. 

  105. 					
    106. 

  106. 					}
    107. 

  107. 					break;
    108. 

  108. 				
    109. 

  109. 				case 'free' : // FREE space atom
    110. 

  110. 				case 'skip' : // SKIP atom
    111. 

  111. 				case 'wide' : // 64-bit expansion placeholder atom
    112. 

  112. 					// 'free', 'skip' and 'wide' are just padding, contains no useful data at all
    113. 

  113. 					break;
    114. 

  114. 				
    115. 

  115. 				default :
    116. 

  116. 					$atomHierarchy = array ();
    117. 

  117. 					$info ['quicktime'] [$atomname] = $this->QuicktimeParseAtom ( $atomname, $atomsize, fread ( $this->getid3->fp, $atomsize ), $offset, $atomHierarchy, $this->ParseAllPossibleAtoms );
    118. 

  118. 					break;
    119. 

  119. 			}
    120. 

  120. 			
    121. 

  121. 			$offset += $atomsize;
    122. 

  122. 			$atomcounter ++;
    123. 

  123. 		}
    124. 

  124. 		
    125. 

  125. 		if (! empty ( $info ['avdataend_tmp'] )) {
    126. 

  126. 			// this value is assigned to a temp value and then erased because
    127. 

  127. 			// otherwise any atoms beyond the 'mdat' atom would not get parsed
    128. 

  128. 			$info ['avdataend'] = $info ['avdataend_tmp'];
    129. 

  129. 			unset ( $info ['avdataend_tmp'] );
    130. 

  130. 		}
    131. 

  131. 		
    132. 

  132. 		if (! isset ( $info ['bitrate'] ) && isset ( $info ['playtime_seconds'] )) {
    133. 

  133. 			$info ['bitrate'] = (($info ['avdataend'] - $info ['avdataoffset']) * 8) / $info ['playtime_seconds'];
    134. 

  134. 		}
    135. 

  135. 		if (isset ( $info ['bitrate'] ) && ! isset ( $info ['audio'] ['bitrate'] ) && ! isset ( $info ['quicktime'] ['video'] )) {
    136. 

  136. 			$info ['audio'] ['bitrate'] = $info ['bitrate'];
    137. 

  137. 		}
    138. 

  138. 		if (! empty ( $info ['playtime_seconds'] ) && ! isset ( $info ['video'] ['frame_rate'] ) && ! empty ( $info ['quicktime'] ['stts_framecount'] )) {
    139. 

  139. 			foreach ( $info ['quicktime'] ['stts_framecount'] as $key => $samples_count ) {
    140. 

  140. 				$samples_per_second = $samples_count / $info ['playtime_seconds'];
    141. 

  141. 				if ($samples_per_second > 240) {
    142. 

  142. 					// has to be audio samples
    143. 

  143. 				} else {
    144. 

  144. 					$info ['video'] ['frame_rate'] = $samples_per_second;
    145. 

  145. 					break;
    146. 

  146. 				}
    147. 

  147. 			}
    148. 

  148. 		}
    149. 

  149. 		if (($info ['audio'] ['dataformat'] == 'mp4') && empty ( $info ['video'] ['resolution_x'] )) {
    150. 

  150. 			$info ['fileformat'] = 'mp4';
    151. 

  151. 			$info ['mime_type'] = 'audio/mp4';
    152. 

  152. 			unset ( $info ['video'] ['dataformat'] );
    153. 

  153. 		}
    154. 

  154. 		
    155. 

  155. 		if (! $this->ReturnAtomData) {
    156. 

  156. 			unset ( $info ['quicktime'] ['moov'] );
    157. 

  157. 		}
    158. 

  158. 		
    159. 

  159. 		if (empty ( $info ['audio'] ['dataformat'] ) && ! empty ( $info ['quicktime'] ['audio'] )) {
    160. 

  160. 			$info ['audio'] ['dataformat'] = 'quicktime';
    161. 

  161. 		}
    162. 

  162. 		if (empty ( $info ['video'] ['dataformat'] ) && ! empty ( $info ['quicktime'] ['video'] )) {
    163. 

  163. 			$info ['video'] ['dataformat'] = 'quicktime';
    164. 

  164. 		}
    165. 

  165. 		
    166. 

  166. 		return true;
    167. 

  167. 	}
    168. 

  168. 	
    169. 

  169. 	function QuicktimeParseAtom($atomname, $atomsize, $atom_data, $baseoffset, &$atomHierarchy, $ParseAllPossibleAtoms) {
    170. 

  170. 		// http://developer.apple.com/techpubs/quicktime/qtdevdocs/APIREF/INDEX/atomalphaindex.htm
    171. 

  171. 		
    172. 

  172. 

  173. 		$info = &$this->getid3->info;
    174. 

  174. 		
    175. 

  175. 		$atom_parent = array_pop ( $atomHierarchy );
    176. 

  176. 		array_push ( $atomHierarchy, $atomname );
    177. 

  177. 		$atom_structure ['hierarchy'] = implode ( ' ', $atomHierarchy );
    178. 

  178. 		$atom_structure ['name'] = $atomname;
    179. 

  179. 		$atom_structure ['size'] = $atomsize;
    180. 

  180. 		$atom_structure ['offset'] = $baseoffset;
    181. 

  181. 		//echo getid3_lib::PrintHexBytes(substr($atom_data, 0, 8)).'<br>';
    182. 

  182. 		//echo getid3_lib::PrintHexBytes(substr($atom_data, 0, 8), false).'<br><br>';
    183. 

  183. 		switch ($atomname) {
    184. 

  184. 			case 'moov' : // MOVie container atom
    185. 

  185. 			case 'trak' : // TRAcK container atom
    186. 

  186. 			case 'clip' : // CLIPping container atom
    187. 

  187. 			case 'matt' : // track MATTe container atom
    188. 

  188. 			case 'edts' : // EDiTS container atom
    189. 

  189. 			case 'tref' : // Track REFerence container atom
    190. 

  190. 			case 'mdia' : // MeDIA container atom
    191. 

  191. 			case 'minf' : // Media INFormation container atom
    192. 

  192. 			case 'dinf' : // Data INFormation container atom
    193. 

  193. 			case 'udta' : // User DaTA container atom
    194. 

  194. 			case 'cmov' : // Compressed MOVie container atom
    195. 

  195. 			case 'rmra' : // Reference Movie Record Atom
    196. 

  196. 			case 'rmda' : // Reference Movie Descriptor Atom
    197. 

  197. 			case 'gmhd' : // Generic Media info HeaDer atom (seen on QTVR)
    198. 

  198. 				$atom_structure ['subatoms'] = $this->QuicktimeParseContainerAtom ( $atom_data, $baseoffset + 8, $atomHierarchy, $ParseAllPossibleAtoms );
    199. 

  199. 				break;
    200. 

  200. 			
    201. 

  201. 			case 'ilst' : // Item LiST container atom
    202. 

  202. 				$atom_structure ['subatoms'] = $this->QuicktimeParseContainerAtom ( $atom_data, $baseoffset + 8, $atomHierarchy, $ParseAllPossibleAtoms );
    203. 

  203. 				
    204. 

  204. 				// some "ilst" atoms contain data atoms that have a numeric name, and the data is far more accessible if the returned array is compacted
    205. 

  205. 				$allnumericnames = true;
    206. 

  206. 				foreach ( $atom_structure ['subatoms'] as $subatomarray ) {
    207. 

  207. 					if (! is_integer ( $subatomarray ['name'] ) || (count ( $subatomarray ['subatoms'] ) != 1)) {
    208. 

  208. 						$allnumericnames = false;
    209. 

  209. 						break;
    210. 

  210. 					}
    211. 

  211. 				}
    212. 

  212. 				if ($allnumericnames) {
    213. 

  213. 					$newData = array ();
    214. 

  214. 					foreach ( $atom_structure ['subatoms'] as $subatomarray ) {
    215. 

  215. 						foreach ( $subatomarray ['subatoms'] as $newData_subatomarray ) {
    216. 

  216. 							unset ( $newData_subatomarray ['hierarchy'], $newData_subatomarray ['name'] );
    217. 

  217. 							$newData [$subatomarray ['name']] = $newData_subatomarray;
    218. 

  218. 							break;
    219. 

  219. 						}
    220. 

  220. 					}
    221. 

  221. 					$atom_structure ['data'] = $newData;
    222. 

  222. 					unset ( $atom_structure ['subatoms'] );
    223. 

  223. 				}
    224. 

  224. 				break;
    225. 

  225. 			
    226. 

  226. 			case "\x00\x00\x00\x01" :
    227. 

  227. 			case "\x00\x00\x00\x02" :
    228. 

  228. 			case "\x00\x00\x00\x03" :
    229. 

  229. 			case "\x00\x00\x00\x04" :
    230. 

  230. 			case "\x00\x00\x00\x05" :
    231. 

  231. 				$atomname = getid3_lib::BigEndian2Int ( $atomname );
    232. 

  232. 				$atom_structure ['name'] = $atomname;
    233. 

  233. 				$atom_structure ['subatoms'] = $this->QuicktimeParseContainerAtom ( $atom_data, $baseoffset + 8, $atomHierarchy, $ParseAllPossibleAtoms );
    234. 

  234. 				break;
    235. 

  235. 			
    236. 

  236. 			case 'stbl' : // Sample TaBLe container atom
    237. 

  237. 				$atom_structure ['subatoms'] = $this->QuicktimeParseContainerAtom ( $atom_data, $baseoffset + 8, $atomHierarchy, $ParseAllPossibleAtoms );
    238. 

  238. 				$isVideo = false;
    239. 

  239. 				$framerate = 0;
    240. 

  240. 				$framecount = 0;
    241. 

  241. 				foreach ( $atom_structure ['subatoms'] as $key => $value_array ) {
    242. 

  242. 					if (isset ( $value_array ['sample_description_table'] )) {
    243. 

  243. 						foreach ( $value_array ['sample_description_table'] as $key2 => $value_array2 ) {
    244. 

  244. 							if (isset ( $value_array2 ['data_format'] )) {
    245. 

  245. 								switch ($value_array2 ['data_format']) {
    246. 

  246. 									case 'avc1' :
    247. 

  247. 									case 'mp4v' :
    248. 

  248. 										// video data
    249. 

  249. 										$isVideo = true;
    250. 

  250. 										break;
    251. 

  251. 									case 'mp4a' :
    252. 

  252. 										// audio data
    253. 

  253. 										break;
    254. 

  254. 								}
    255. 

  255. 							}
    256. 

  256. 						}
    257. 

  257. 					} elseif (isset ( $value_array ['time_to_sample_table'] )) {
    258. 

  258. 						foreach ( $value_array ['time_to_sample_table'] as $key2 => $value_array2 ) {
    259. 

  259. 							if (isset ( $value_array2 ['sample_count'] ) && isset ( $value_array2 ['sample_duration'] ) && ($value_array2 ['sample_duration'] > 0)) {
    260. 

  260. 								$framerate = round ( $info ['quicktime'] ['time_scale'] / $value_array2 ['sample_duration'], 3 );
    261. 

  261. 								$framecount = $value_array2 ['sample_count'];
    262. 

  262. 							}
    263. 

  263. 						}
    264. 

  264. 					}
    265. 

  265. 				}
    266. 

  266. 				if ($isVideo && $framerate) {
    267. 

  267. 					$info ['quicktime'] ['video'] ['frame_rate'] = $framerate;
    268. 

  268. 					$info ['video'] ['frame_rate'] = $info ['quicktime'] ['video'] ['frame_rate'];
    269. 

  269. 				}
    270. 

  270. 				if ($isVideo && $framecount) {
    271. 

  271. 					$info ['quicktime'] ['video'] ['frame_count'] = $framecount;
    272. 

  272. 				}
    273. 

  273. 				break;
    274. 

  274. 			
    275. 

  275. 			case 'aART' : // Album ARTist
    276. 

  276. 			case 'catg' : // CaTeGory
    277. 

  277. 			case 'covr' : // COVeR artwork
    278. 

  278. 			case 'cpil' : // ComPILation
    279. 

  279. 			case 'cprt' : // CoPyRighT
    280. 

  280. 			case 'desc' : // DESCription
    281. 

  281. 			case 'disk' : // DISK number
    282. 

  282. 			case 'egid' : // Episode Global ID
    283. 

  283. 			case 'gnre' : // GeNRE
    284. 

  284. 			case 'keyw' : // KEYWord
    285. 

  285. 			case 'ldes' :
    286. 

  286. 			case 'pcst' : // PodCaST
    287. 

  287. 			case 'pgap' : // GAPless Playback
    288. 

  288. 			case 'purd' : // PURchase Date
    289. 

  289. 			case 'purl' : // Podcast URL
    290. 

  290. 			case 'rati' :
    291. 

  291. 			case 'rndu' :
    292. 

  292. 			case 'rpdu' :
    293. 

  293. 			case 'rtng' : // RaTiNG
    294. 

  294. 			case 'stik' :
    295. 

  295. 			case 'tmpo' : // TeMPO (BPM)
    296. 

  296. 			case 'trkn' : // TRacK Number
    297. 

  297. 			case 'tves' : // TV EpiSode
    298. 

  298. 			case 'tvnn' : // TV Network Name
    299. 

  299. 			case 'tvsh' : // TV SHow Name
    300. 

  300. 			case 'tvsn' : // TV SeasoN
    301. 

  301. 			case 'akID' : // iTunes store account type
    302. 

  302. 			case 'apID' :
    303. 

  303. 			case 'atID' :
    304. 

  304. 			case 'cmID' :
    305. 

  305. 			case 'cnID' :
    306. 

  306. 			case 'geID' :
    307. 

  307. 			case 'plID' :
    308. 

  308. 			case 'sfID' : // iTunes store country
    309. 

  309. 			case '©alb' : // ALBum
    310. 

  310. 			case '©art' : // ARTist
    311. 

  311. 			case '©ART' :
    312. 

  312. 			case '©aut' :
    313. 

  313. 			case '©cmt' : // CoMmenT
    314. 

  314. 			case '©com' : // COMposer
    315. 

  315. 			case '©cpy' :
    316. 

  316. 			case '©day' : // content created year
    317. 

  317. 			case '©dir' :
    318. 

  318. 			case '©ed1' :
    319. 

  319. 			case '©ed2' :
    320. 

  320. 			case '©ed3' :
    321. 

  321. 			case '©ed4' :
    322. 

  322. 			case '©ed5' :
    323. 

  323. 			case '©ed6' :
    324. 

  324. 			case '©ed7' :
    325. 

  325. 			case '©ed8' :
    326. 

  326. 			case '©ed9' :
    327. 

  327. 			case '©enc' :
    328. 

  328. 			case '©fmt' :
    329. 

  329. 			case '©gen' : // GENre
    330. 

  330. 			case '©grp' : // GRouPing
    331. 

  331. 			case '©hst' :
    332. 

  332. 			case '©inf' :
    333. 

  333. 			case '©lyr' : // LYRics
    334. 

  334. 			case '©mak' :
    335. 

  335. 			case '©mod' :
    336. 

  336. 			case '©nam' : // full NAMe
    337. 

  337. 			case '©ope' :
    338. 

  338. 			case '©PRD' :
    339. 

  339. 			case '©prd' :
    340. 

  340. 			case '©prf' :
    341. 

  341. 			case '©req' :
    342. 

  342. 			case '©src' :
    343. 

  343. 			case '©swr' :
    344. 

  344. 			case '©too' : // encoder
    345. 

  345. 			case '©trk' : // TRacK
    346. 

  346. 			case '©url' :
    347. 

  347. 			case '©wrn' :
    348. 

  348. 			case '©wrt' : // WRiTer
    349. 

  349. 			case '----' : // itunes specific
    350. 

  350. 				if ($atom_parent == 'udta') {
    351. 

  351. 					// User data atom handler
    352. 

  352. 					$atom_structure ['data_length'] = getid3_lib::BigEndian2Int ( substr ( $atom_data, 0, 2 ) );
    353. 

  353. 					$atom_structure ['language_id'] = getid3_lib::BigEndian2Int ( substr ( $atom_data, 2, 2 ) );
    354. 

  354. 					$atom_structure ['data'] = substr ( $atom_data, 4 );
    355. 

  355. 					
    356. 

  356. 					$atom_structure ['language'] = $this->QuicktimeLanguageLookup ( $atom_structure ['language_id'] );
    357. 

  357. 					if (empty ( $info ['comments'] ['language'] ) || (! in_array ( $atom_structure ['language'], $info ['comments'] ['language'] ))) {
    358. 

  358. 						$info ['comments'] ['language'] [] = $atom_structure ['language'];
    359. 

  359. 					}
    360. 

  360. 				} else {
    361. 

  361. 					// Apple item list box atom handler
    362. 

  362. 					$atomoffset = 0;
    363. 

  363. 					if (substr ( $atom_data, 2, 2 ) == "\x10\xB5") {
    364. 

  364. 						// not sure what it means, but observed on iPhone4 data.
    365. 

  365. 						// Each $atom_data has 2 bytes of datasize, plus 0x10B5, then data
    366. 

  366. 						while ( $atomoffset < strlen ( $atom_data ) ) {
    367. 

  367. 							$boxsmallsize = getid3_lib::BigEndian2Int ( substr ( $atom_data, $atomoffset, 2 ) );
    368. 

  368. 							$boxsmalltype = substr ( $atom_data, $atomoffset + 2, 2 );
    369. 

  369. 							$boxsmalldata = substr ( $atom_data, $atomoffset + 4, $boxsmallsize );
    370. 

  370. 							switch ($boxsmalltype) {
    371. 

  371. 								case "\x10\xB5" :
    372. 

  372. 									$atom_structure ['data'] = $boxsmalldata;
    373. 

  373. 									break;
    374. 

  374. 								default :
    375. 

  375. 									$info ['warning'] [] = 'Unknown QuickTime smallbox type: "' . getid3_lib::PrintHexBytes ( $boxsmalltype ) . '" at offset ' . $baseoffset;
    376. 

  376. 									$atom_structure ['data'] = $atom_data;
    377. 

  377. 									break;
    378. 

  378. 							}
    379. 

  379. 							$atomoffset += (4 + $boxsmallsize);
    380. 

  380. 						}
    381. 

  381. 					} else {
    382. 

  382. 						while ( $atomoffset < strlen ( $atom_data ) ) {
    383. 

  383. 							$boxsize = getid3_lib::BigEndian2Int ( substr ( $atom_data, $atomoffset, 4 ) );
    384. 

  384. 							$boxtype = substr ( $atom_data, $atomoffset + 4, 4 );
    385. 

  385. 							$boxdata = substr ( $atom_data, $atomoffset + 8, $boxsize - 8 );
    386. 

  386. 							
    387. 

  387. 							switch ($boxtype) {
    388. 

  388. 								case 'mean' :
    389. 

  389. 								case 'name' :
    390. 

  390. 									$atom_structure [$boxtype] = substr ( $boxdata, 4 );
    391. 

  391. 									break;
    392. 

  392. 								
    393. 

  393. 								case 'data' :
    394. 

  394. 									$atom_structure ['version'] = getid3_lib::BigEndian2Int ( substr ( $boxdata, 0, 1 ) );
    395. 

  395. 									$atom_structure ['flags_raw'] = getid3_lib::BigEndian2Int ( substr ( $boxdata, 1, 3 ) );
    396. 

  396. 									switch ($atom_structure ['flags_raw']) {
    397. 

  397. 										case 0 : // data flag
    398. 

  398. 										case 21 : // tmpo/cpil flag
    399. 

  399. 											switch ($atomname) {
    400. 

  400. 												case 'cpil' :
    401. 

  401. 												case 'pcst' :
    402. 

  402. 												case 'pgap' :
    403. 

  403. 													$atom_structure ['data'] = getid3_lib::BigEndian2Int ( substr ( $boxdata, 8, 1 ) );
    404. 

  404. 													break;
    405. 

  405. 												
    406. 

  406. 												case 'tmpo' :
    407. 

  407. 													$atom_structure ['data'] = getid3_lib::BigEndian2Int ( substr ( $boxdata, 8, 2 ) );
    408. 

  408. 													break;
    409. 

  409. 												
    410. 

  410. 												case 'disk' :
    411. 

  411. 												case 'trkn' :
    412. 

  412. 													$num = getid3_lib::BigEndian2Int ( substr ( $boxdata, 10, 2 ) );
    413. 

  413. 													$num_total = getid3_lib::BigEndian2Int ( substr ( $boxdata, 12, 2 ) );
    414. 

  414. 													$atom_structure ['data'] = empty ( $num ) ? '' : $num;
    415. 

  415. 													$atom_structure ['data'] .= empty ( $num_total ) ? '' : '/' . $num_total;
    416. 

  416. 													break;
    417. 

  417. 												
    418. 

  418. 												case 'gnre' :
    419. 

  419. 													$GenreID = getid3_lib::BigEndian2Int ( substr ( $boxdata, 8, 4 ) );
    420. 

  420. 													$atom_structure ['data'] = getid3_id3v1::LookupGenreName ( $GenreID - 1 );
    421. 

  421. 													break;
    422. 

  422. 												
    423. 

  423. 												case 'rtng' :
    424. 

  424. 													$atom_structure [$atomname] = getid3_lib::BigEndian2Int ( substr ( $boxdata, 8, 1 ) );
    425. 

  425. 													$atom_structure ['data'] = $this->QuicktimeContentRatingLookup ( $atom_structure [$atomname] );
    426. 

  426. 													break;
    427. 

  427. 												
    428. 

  428. 												case 'stik' :
    429. 

  429. 													$atom_structure [$atomname] = getid3_lib::BigEndian2Int ( substr ( $boxdata, 8, 1 ) );
    430. 

  430. 													$atom_structure ['data'] = $this->QuicktimeSTIKLookup ( $atom_structure [$atomname] );
    431. 

  431. 													break;
    432. 

  432. 												
    433. 

  433. 												case 'sfID' :
    434. 

  434. 													$atom_structure [$atomname] = getid3_lib::BigEndian2Int ( substr ( $boxdata, 8, 4 ) );
    435. 

  435. 													$atom_structure ['data'] = $this->QuicktimeStoreFrontCodeLookup ( $atom_structure [$atomname] );
    436. 

  436. 													break;
    437. 

  437. 												
    438. 

  438. 												case 'egid' :
    439. 

  439. 												case 'purl' :
    440. 

  440. 													$atom_structure ['data'] = substr ( $boxdata, 8 );
    441. 

  441. 													break;
    442. 

  442. 												
    443. 

  443. 												default :
    444. 

  444. 													$atom_structure ['data'] = getid3_lib::BigEndian2Int ( substr ( $boxdata, 8, 4 ) );
    445. 

  445. 											}
    446. 

  446. 											break;
    447. 

  447. 										
    448. 

  448. 										case 1 : // text flag
    449. 

  449. 										case 13 : // image flag
    450. 

  450. 										default :
    451. 

  451. 											$atom_structure ['data'] = substr ( $boxdata, 8 );
    452. 

  452. 											break;
    453. 

  453. 									
    454. 

  454. 									}
    455. 

  455. 									break;
    456. 

  456. 								
    457. 

  457. 								default :
    458. 

  458. 									$info ['warning'] [] = 'Unknown QuickTime box type: "' . getid3_lib::PrintHexBytes ( $boxtype ) . '" at offset ' . $baseoffset;
    459. 

  459. 									$atom_structure ['data'] = $atom_data;
    460. 

  460. 							
    461. 

  461. 							}
    462. 

  462. 							$atomoffset += $boxsize;
    463. 

  463. 						}
    464. 

  464. 					}
    465. 

  465. 				}
    466. 

  466. 				$this->CopyToAppropriateCommentsSection ( $atomname, $atom_structure ['data'], $atom_structure ['name'] );
    467. 

  467. 				break;
    468. 

  468. 			
    469. 

  469. 			case 'play' : // auto-PLAY atom
    470. 

  470. 				$atom_structure ['autoplay'] = ( bool ) getid3_lib::BigEndian2Int ( substr ( $atom_data, 0, 1 ) );
    471. 

  471. 				
    472. 

  472. 				$info ['quicktime'] ['autoplay'] = $atom_structure ['autoplay'];
    473. 

  473. 				break;
    474. 

  474. 			
    475. 

  475. 			case 'WLOC' : // Window LOCation atom
    476. 

  476. 				$atom_structure ['location_x'] = getid3_lib::BigEndian2Int ( substr ( $atom_data, 0, 2 ) );
    477. 

  477. 				$atom_structure ['location_y'] = getid3_lib::BigEndian2Int ( substr ( $atom_data, 2, 2 ) );
    478. 

  478. 				break;
    479. 

  479. 			
    480. 

  480. 			case 'LOOP' : // LOOPing atom
    481. 

  481. 			case 'SelO' : // play SELection Only atom
    482. 

  482. 			case 'AllF' : // play ALL Frames atom
    483. 

  483. 				$atom_structure ['data'] = getid3_lib::BigEndian2Int ( $atom_data );
    484. 

  484. 				break;
    485. 

  485. 			
    486. 

  486. 			case 'name' : //
    487. 

  487. 			case 'MCPS' : // Media Cleaner PRo
    488. 

  488. 			case '@PRM' : // adobe PReMiere version
    489. 

  489. 			case '@PRQ' : // adobe PRemiere Quicktime version
    490. 

  490. 				$atom_structure ['data'] = $atom_data;
    491. 

  491. 				break;
    492. 

  492. 			
    493. 

  493. 			case 'cmvd' : // Compressed MooV Data atom
    494. 

  494. 				// Code by ubergeekØubergeek*tv based on information from
    495. 

  495. 				// http://developer.apple.com/quicktime/icefloe/dispatch012.html
    496. 

  496. 				$atom_structure ['unCompressedSize'] = getid3_lib::BigEndian2Int ( substr ( $atom_data, 0, 4 ) );
    497. 

  497. 				
    498. 

  498. 				$CompressedFileData = substr ( $atom_data, 4 );
    499. 

  499. 				if (($UncompressedHeader = @gzuncompress ( $CompressedFileData )) != false) {
    500. 

  500. 					$atom_structure ['subatoms'] = $this->QuicktimeParseContainerAtom ( $UncompressedHeader, 0, $atomHierarchy, $ParseAllPossibleAtoms );
    501. 

  501. 				} else {
    502. 

  502. 					$info ['warning'] [] = 'Error decompressing compressed MOV atom at offset ' . $atom_structure ['offset'];
    503. 

  503. 				}
    504. 

  504. 				break;
    505. 

  505. 			
    506. 

  506. 			case 'dcom' : // Data COMpression atom
    507. 

  507. 				$atom_structure ['compression_id'] = $atom_data;
    508. 

  508. 				$atom_structure ['compression_text'] = $this->QuicktimeDCOMLookup ( $atom_data );
    509. 

  509. 				break;
    510. 

  510. 			
    511. 

  511. 			case 'rdrf' : // Reference movie Data ReFerence atom
    512. 

  512. 				$atom_structure ['version'] = getid3_lib::BigEndian2Int ( substr ( $atom_data, 0, 1 ) );
    513. 

  513. 				$atom_structure ['flags_raw'] = getid3_lib::BigEndian2Int ( substr ( $atom_data, 1, 3 ) );
    514. 

  514. 				$atom_structure ['flags'] ['internal_data'] = ( bool ) ($atom_structure ['flags_raw'] & 0x000001);
    515. 

  515. 				
    516. 

  516. 				$atom_structure ['reference_type_name'] = substr ( $atom_data, 4, 4 );
    517. 

  517. 				$atom_structure ['reference_length'] = getid3_lib::BigEndian2Int ( substr ( $atom_data, 8, 4 ) );
    518. 

  518. 				switch ($atom_structure ['reference_type_name']) {
    519. 

  519. 					case 'url ' :
    520. 

  520. 						$atom_structure ['url'] = $this->NoNullString ( substr ( $atom_data, 12 ) );
    521. 

  521. 						break;
    522. 

  522. 					
    523. 

  523. 					case 'alis' :
    524. 

  524. 						$atom_structure ['file_alias'] = substr ( $atom_data, 12 );
    525. 

  525. 						break;
    526. 

  526. 					
    527. 

  527. 					case 'rsrc' :
    528. 

  528. 						$atom_structure ['resource_alias'] = substr ( $atom_data, 12 );
    529. 

  529. 						break;
    530. 

  530. 					
    531. 

  531. 					default :
    532. 

  532. 						$atom_structure ['data'] = substr ( $atom_data, 12 );
    533. 

  533. 						break;
    534. 

  534. 				}
    535. 

  535. 				break;
    536. 

  536. 			
    537. 

  537. 			case 'rmqu' : // Reference Movie QUality atom
    538. 

  538. 				$atom_structure ['movie_quality'] = getid3_lib::BigEndian2Int ( $atom_data );
    539. 

  539. 				break;
    540. 

  540. 			
    541. 

  541. 			case 'rmcs' : // Reference Movie Cpu Speed atom
    542. 

  542. 				$atom_structure ['version'] = getid3_lib::BigEndian2Int ( substr ( $atom_data, 0, 1 ) );
    543. 

  543. 				$atom_structure ['flags_raw'] = getid3_lib::BigEndian2Int ( substr ( $atom_data, 1, 3 ) ); // hardcoded: 0x0000
    544. 

  544. 				$atom_structure ['cpu_speed_rating'] = getid3_lib::BigEndian2Int ( substr ( $atom_data, 4, 2 ) );
    545. 

  545. 				break;
    546. 

  546. 			
    547. 

  547. 			case 'rmvc' : // Reference Movie Version Check atom
    548. 

  548. 				$atom_structure ['version'] = getid3_lib::BigEndian2Int ( substr ( $atom_data, 0, 1 ) );
    549. 

  549. 				$atom_structure ['flags_raw'] = getid3_lib::BigEndian2Int ( substr ( $atom_data, 1, 3 ) ); // hardcoded: 0x0000
    550. 

  550. 				$atom_structure ['gestalt_selector'] = substr ( $atom_data, 4, 4 );
    551. 

  551. 				$atom_structure ['gestalt_value_mask'] = getid3_lib::BigEndian2Int ( substr ( $atom_data, 8, 4 ) );
    552. 

  552. 				$atom_structure ['gestalt_value'] = getid3_lib::BigEndian2Int ( substr ( $atom_data, 12, 4 ) );
    553. 

  553. 				$atom_structure ['gestalt_check_type'] = getid3_lib::BigEndian2Int ( substr ( $atom_data, 14, 2 ) );
    554. 

  554. 				break;
    555. 

  555. 			
    556. 

  556. 			case 'rmcd' : // Reference Movie Component check atom
    557. 

  557. 				$atom_structure ['version'] = getid3_lib::BigEndian2Int ( substr ( $atom_data, 0, 1 ) );
    558. 

  558. 				$atom_structure ['flags_raw'] = getid3_lib::BigEndian2Int ( substr ( $atom_data, 1, 3 ) ); // hardcoded: 0x0000
    559. 

  559. 				$atom_structure ['component_type'] = substr ( $atom_data, 4, 4 );
    560. 

  560. 				$atom_structure ['component_subtype'] = substr ( $atom_data, 8, 4 );
    561. 

  561. 				$atom_structure ['component_manufacturer'] = substr ( $atom_data, 12, 4 );
    562. 

  562. 				$atom_structure ['component_flags_raw'] = getid3_lib::BigEndian2Int ( substr ( $atom_data, 16, 4 ) );
    563. 

  563. 				$atom_structure ['component_flags_mask'] = getid3_lib::BigEndian2Int ( substr ( $atom_data, 20, 4 ) );
    564. 

  564. 				$atom_structure ['component_min_version'] = getid3_lib::BigEndian2Int ( substr ( $atom_data, 24, 4 ) );
    565. 

  565. 				break;
    566. 

  566. 			
    567. 

  567. 			case 'rmdr' : // Reference Movie Data Rate atom
    568. 

  568. 				$atom_structure ['version'] = getid3_lib::BigEndian2Int ( substr ( $atom_data, 0, 1 ) );
    569. 

  569. 				$atom_structure ['flags_raw'] = getid3_lib::BigEndian2Int ( substr ( $atom_data, 1, 3 ) ); // hardcoded: 0x0000
    570. 

  570. 				$atom_structure ['data_rate'] = getid3_lib::BigEndian2Int ( substr ( $atom_data, 4, 4 ) );
    571. 

  571. 				
    572. 

  572. 				$atom_structure ['data_rate_bps'] = $atom_structure ['data_rate'] * 10;
    573. 

  573. 				break;
    574. 

  574. 			
    575. 

  575. 			case 'rmla' : // Reference Movie Language Atom
    576. 

  576. 				$atom_structure ['version'] = getid3_lib::BigEndian2Int ( substr ( $atom_data, 0, 1 ) );
    577. 

  577. 				$atom_structure ['flags_raw'] = getid3_lib::BigEndian2Int ( substr ( $atom_data, 1, 3 ) ); // hardcoded: 0x0000
    578. 

  578. 				$atom_structure ['language_id'] = getid3_lib::BigEndian2Int ( substr ( $atom_data, 4, 2 ) );
    579. 

  579. 				
    580. 

  580. 				$atom_structure ['language'] = $this->QuicktimeLanguageLookup ( $atom_structure ['language_id'] );
    581. 

  581. 				if (empty ( $info ['comments'] ['language'] ) || (! in_array ( $atom_structure ['language'], $info ['comments'] ['language'] ))) {
    582. 

  582. 					$info ['comments'] ['language'] [] = $atom_structure ['language'];
    583. 

  583. 				}
    584. 

  584. 				break;
    585. 

  585. 			
    586. 

  586. 			case 'rmla' : // Reference Movie Language Atom
    587. 

  587. 				$atom_structure ['version'] = getid3_lib::BigEndian2Int ( substr ( $atom_data, 0, 1 ) );
    588. 

  588. 				$atom_structure ['flags_raw'] = getid3_lib::BigEndian2Int ( substr ( $atom_data, 1, 3 ) ); // hardcoded: 0x0000
    589. 

  589. 				$atom_structure ['track_id'] = getid3_lib::BigEndian2Int ( substr ( $atom_data, 4, 2 ) );
    590. 

  590. 				break;
    591. 

  591. 			
    592. 

  592. 			case 'ptv ' : // Print To Video - defines a movie's full screen mode
    593. 

  593. 				// http://developer.apple.com/documentation/QuickTime/APIREF/SOURCESIV/at_ptv-_pg.htm
    594. 

  594. 				$atom_structure ['display_size_raw'] = getid3_lib::BigEndian2Int ( substr ( $atom_data, 0, 2 ) );
    595. 

  595. 				$atom_structure ['reserved_1'] = getid3_lib::BigEndian2Int ( substr ( $atom_data, 2, 2 ) ); // hardcoded: 0x0000
    596. 

  596. 				$atom_structure ['reserved_2'] = getid3_lib::BigEndian2Int ( substr ( $atom_data, 4, 2 ) ); // hardcoded: 0x0000
    597. 

  597. 				$atom_structure ['slide_show_flag'] = getid3_lib::BigEndian2Int ( substr ( $atom_data, 6, 1 ) );
    598. 

  598. 				$atom_structure ['play_on_open_flag'] = getid3_lib::BigEndian2Int ( substr ( $atom_data, 7, 1 ) );
    599. 

  599. 				
    600. 

  600. 				$atom_structure ['flags'] ['play_on_open'] = ( bool ) $atom_structure ['play_on_open_flag'];
    601. 

  601. 				$atom_structure ['flags'] ['slide_show'] = ( bool ) $atom_structure ['slide_show_flag'];
    602. 

  602. 				
    603. 

  603. 				$ptv_lookup [0] = 'normal';
    604. 

  604. 				$ptv_lookup [1] = 'double';
    605. 

  605. 				$ptv_lookup [2] = 'half';
    606. 

  606. 				$ptv_lookup [3] = 'full';
    607. 

  607. 				$ptv_lookup [4] = 'current';
    608. 

  608. 				if (isset ( $ptv_lookup [$atom_structure ['display_size_raw']] )) {
    609. 

  609. 					$atom_structure ['display_size'] = $ptv_lookup [$atom_structure ['display_size_raw']];
    610. 

  610. 				} else {
    611. 

  611. 					$info ['warning'] [] = 'unknown "ptv " display constant (' . $atom_structure ['display_size_raw'] . ')';
    612. 

  612. 				}
    613. 

  613. 				break;
    614. 

  614. 			
    615. 

  615. 			case 'stsd' : // Sample Table Sample Description atom
    616. 

  616. 				$atom_structure ['version'] = getid3_lib::BigEndian2Int ( substr ( $atom_data, 0, 1 ) );
    617. 

  617. 				$atom_structure ['flags_raw'] = getid3_lib::BigEndian2Int ( substr ( $atom_data, 1, 3 ) ); // hardcoded: 0x0000
    618. 

  618. 				$atom_structure ['number_entries'] = getid3_lib::BigEndian2Int ( substr ( $atom_data, 4, 4 ) );
    619. 

  619. 				$stsdEntriesDataOffset = 8;
    620. 

  620. 				for($i = 0; $i < $atom_structure ['number_entries']; $i ++) {
    621. 

  621. 					$atom_structure ['sample_description_table'] [$i] ['size'] = getid3_lib::BigEndian2Int ( substr ( $atom_data, $stsdEntriesDataOffset, 4 ) );
    622. 

  622. 					$stsdEntriesDataOffset += 4;
    623. 

  623. 					$atom_structure ['sample_description_table'] [$i] ['data_format'] = substr ( $atom_data, $stsdEntriesDataOffset, 4 );
    624. 

  624. 					$stsdEntriesDataOffset += 4;
    625. 

  625. 					$atom_structure ['sample_description_table'] [$i] ['reserved'] = getid3_lib::BigEndian2Int ( substr ( $atom_data, $stsdEntriesDataOffset, 6 ) );
    626. 

  626. 					$stsdEntriesDataOffset += 6;
    627. 

  627. 					$atom_structure ['sample_description_table'] [$i] ['reference_index'] = getid3_lib::BigEndian2Int ( substr ( $atom_data, $stsdEntriesDataOffset, 2 ) );
    628. 

  628. 					$stsdEntriesDataOffset += 2;
    629. 

  629. 					$atom_structure ['sample_description_table'] [$i] ['data'] = substr ( $atom_data, $stsdEntriesDataOffset, ($atom_structure ['sample_description_table'] [$i] ['size'] - 4 - 4 - 6 - 2) );
    630. 

  630. 					$stsdEntriesDataOffset += ($atom_structure ['sample_description_table'] [$i] ['size'] - 4 - 4 - 6 - 2);
    631. 

  631. 					
    632. 

  632. 					$atom_structure ['sample_description_table'] [$i] ['encoder_version'] = getid3_lib::BigEndian2Int ( substr ( $atom_structure ['sample_description_table'] [$i] ['data'], 0, 2 ) );
    633. 

  633. 					$atom_structure ['sample_description_table'] [$i] ['encoder_revision'] = getid3_lib::BigEndian2Int ( substr ( $atom_structure ['sample_description_table'] [$i] ['data'], 2, 2 ) );
    634. 

  634. 					$atom_structure ['sample_description_table'] [$i] ['encoder_vendor'] = substr ( $atom_structure ['sample_description_table'] [$i] ['data'], 4, 4 );
    635. 

  635. 					
    636. 

  636. 					switch ($atom_structure ['sample_description_table'] [$i] ['encoder_vendor']) {
    637. 

  637. 						
    638. 

  638. 						case "\x00\x00\x00\x00" :
    639. 

  639. 							// audio atom
    640. 

  640. 							$atom_structure ['sample_description_table'] [$i] ['audio_channels'] = getid3_lib::BigEndian2Int ( substr ( $atom_structure ['sample_description_table'] [$i] ['data'], 8, 2 ) );
    641. 

  641. 							$atom_structure ['sample_description_table'] [$i] ['audio_bit_depth'] = getid3_lib::BigEndian2Int ( substr ( $atom_structure ['sample_description_table'] [$i] ['data'], 10, 2 ) );
    642. 

  642. 							$atom_structure ['sample_description_table'] [$i] ['audio_compression_id'] = getid3_lib::BigEndian2Int ( substr ( $atom_structure ['sample_description_table'] [$i] ['data'], 12, 2 ) );
    643. 

  643. 							$atom_structure ['sample_description_table'] [$i] ['audio_packet_size'] = getid3_lib::BigEndian2Int ( substr ( $atom_structure ['sample_description_table'] [$i] ['data'], 14, 2 ) );
    644. 

  644. 							$atom_structure ['sample_description_table'] [$i] ['audio_sample_rate'] = getid3_lib::FixedPoint16_16 ( substr ( $atom_structure ['sample_description_table'] [$i] ['data'], 16, 4 ) );
    645. 

  645. 							
    646. 

  646. 							switch ($atom_structure ['sample_description_table'] [$i] ['data_format']) {
    647. 

  647. 								case 'avc1' :
    648. 

  648. 								case 'mp4v' :
    649. 

  649. 									$info ['fileformat'] = 'mp4';
    650. 

  650. 									$info ['video'] ['fourcc'] = $atom_structure ['sample_description_table'] [$i] ['data_format'];
    651. 

  651. 									//$info['warning'][] = 'This version of getID3() ['.$this->getid3->version().'] does not fully support MPEG-4 audio/video streams'; // 2011-02-18: why am I warning about this again? What's not supported?
    652. 

  652. 									break;
    653. 

  653. 								
    654. 

  654. 								case 'qtvr' :
    655. 

  655. 									$info ['video'] ['dataformat'] = 'quicktimevr';
    656. 

  656. 									break;
    657. 

  657. 								
    658. 

  658. 								case 'mp4a' :
    659. 

  659. 								default :
    660. 

  660. 									$info ['quicktime'] ['audio'] ['codec'] = $this->QuicktimeAudioCodecLookup ( $atom_structure ['sample_description_table'] [$i] ['data_format'] );
    661. 

  661. 									$info ['quicktime'] ['audio'] ['sample_rate'] = $atom_structure ['sample_description_table'] [$i] ['audio_sample_rate'];
    662. 

  662. 									$info ['quicktime'] ['audio'] ['channels'] = $atom_structure ['sample_description_table'] [$i] ['audio_channels'];
    663. 

  663. 									$info ['quicktime'] ['audio'] ['bit_depth'] = $atom_structure ['sample_description_table'] [$i] ['audio_bit_depth'];
    664. 

  664. 									$info ['audio'] ['codec'] = $info ['quicktime'] ['audio'] ['codec'];
    665. 

  665. 									$info ['audio'] ['sample_rate'] = $info ['quicktime'] ['audio'] ['sample_rate'];
    666. 

  666. 									$info ['audio'] ['channels'] = $info ['quicktime'] ['audio'] ['channels'];
    667. 

  667. 									$info ['audio'] ['bits_per_sample'] = $info ['quicktime'] ['audio'] ['bit_depth'];
    668. 

  668. 									switch ($atom_structure ['sample_description_table'] [$i] ['data_format']) {
    669. 

  669. 										case 'raw ' : // PCM
    670. 

  670. 										case 'alac' : // Apple Lossless Audio Codec
    671. 

  671. 											$info ['audio'] ['lossless'] = true;
    672. 

  672. 											break;
    673. 

  673. 										default :
    674. 

  674. 											$info ['audio'] ['lossless'] = false;
    675. 

  675. 											break;
    676. 

  676. 									}
    677. 

  677. 									break;
    678. 

  678. 							}
    679. 

  679. 							break;
    680. 

  680. 						
    681. 

  681. 						default :
    682. 

  682. 							switch ($atom_structure ['sample_description_table'] [$i] ['data_format']) {
    683. 

  683. 								case 'mp4s' :
    684. 

  684. 									$info ['fileformat'] = 'mp4';
    685. 

  685. 									break;
    686. 

  686. 								
    687. 

  687. 								default :
    688. 

  688. 									// video atom
    689. 

  689. 									$atom_structure ['sample_description_table'] [$i] ['video_temporal_quality'] = getid3_lib::BigEndian2Int ( substr ( $atom_structure ['sample_description_table'] [$i] ['data'], 8, 4 ) );
    690. 

  690. 									$atom_structure ['sample_description_table'] [$i] ['video_spatial_quality'] = getid3_lib::BigEndian2Int ( substr ( $atom_structure ['sample_description_table'] [$i] ['data'], 12, 4 ) );
    691. 

  691. 									$atom_structure ['sample_description_table'] [$i] ['video_frame_width'] = getid3_lib::BigEndian2Int ( substr ( $atom_structure ['sample_description_table'] [$i] ['data'], 16, 2 ) );
    692. 

  692. 									$atom_structure ['sample_description_table'] [$i] ['video_frame_height'] = getid3_lib::BigEndian2Int ( substr ( $atom_structure ['sample_description_table'] [$i] ['data'], 18, 2 ) );
    693. 

  693. 									$atom_structure ['sample_description_table'] [$i] ['video_resolution_x'] = getid3_lib::FixedPoint16_16 ( substr ( $atom_structure ['sample_description_table'] [$i] ['data'], 20, 4 ) );
    694. 

  694. 									$atom_structure ['sample_description_table'] [$i] ['video_resolution_y'] = getid3_lib::FixedPoint16_16 ( substr ( $atom_structure ['sample_description_table'] [$i] ['data'], 24, 4 ) );
    695. 

  695. 									$atom_structure ['sample_description_table'] [$i] ['video_data_size'] = getid3_lib::BigEndian2Int ( substr ( $atom_structure ['sample_description_table'] [$i] ['data'], 28, 4 ) );
    696. 

  696. 									$atom_structure ['sample_description_table'] [$i] ['video_frame_count'] = getid3_lib::BigEndian2Int ( substr ( $atom_structure ['sample_description_table'] [$i] ['data'], 32, 2 ) );
    697. 

  697. 									$atom_structure ['sample_description_table'] [$i] ['video_encoder_name_len'] = getid3_lib::BigEndian2Int ( substr ( $atom_structure ['sample_description_table'] [$i] ['data'], 34, 1 ) );
    698. 

  698. 									$atom_structure ['sample_description_table'] [$i] ['video_encoder_name'] = substr ( $atom_structure ['sample_description_table'] [$i] ['data'], 35, $atom_structure ['sample_description_table'] [$i] ['video_encoder_name_len'] );
    699. 

  699. 									$atom_structure ['sample_description_table'] [$i] ['video_pixel_color_depth'] = getid3_lib::BigEndian2Int ( substr ( $atom_structure ['sample_description_table'] [$i] ['data'], 66, 2 ) );
    700. 

  700. 									$atom_structure ['sample_description_table'] [$i] ['video_color_table_id'] = getid3_lib::BigEndian2Int ( substr ( $atom_structure ['sample_description_table'] [$i] ['data'], 68, 2 ) );
    701. 

  701. 									
    702. 

  702. 									$atom_structure ['sample_description_table'] [$i] ['video_pixel_color_type'] = (($atom_structure ['sample_description_table'] [$i] ['video_pixel_color_depth'] > 32) ? 'grayscale' : 'color');
    703. 

  703. 									$atom_structure ['sample_description_table'] [$i] ['video_pixel_color_name'] = $this->QuicktimeColorNameLookup ( $atom_structure ['sample_description_table'] [$i] ['video_pixel_color_depth'] );
    704. 

  704. 									
    705. 

  705. 									if ($atom_structure ['sample_description_table'] [$i] ['video_pixel_color_name'] != 'invalid') {
    706. 

  706. 										$info ['quicktime'] ['video'] ['codec_fourcc'] = $atom_structure ['sample_description_table'] [$i] ['data_format'];
    707. 

  707. 										$info ['quicktime'] ['video'] ['codec_fourcc_lookup'] = $this->QuicktimeVideoCodecLookup ( $atom_structure ['sample_description_table'] [$i] ['data_format'] );
    708. 

  708. 										$info ['quicktime'] ['video'] ['codec'] = (($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']);
    709. 

  709. 										$info ['quicktime'] ['video'] ['color_depth'] = $atom_structure ['sample_description_table'] [$i] ['video_pixel_color_depth'];
    710. 

  710. 										$info ['quicktime'] ['video'] ['color_depth_name'] = $atom_structure ['sample_description_table'] [$i] ['video_pixel_color_name'];
    711. 

  711. 										
    712. 

  712. 										$info ['video'] ['codec'] = $info ['quicktime'] ['video'] ['codec'];
    713. 

  713. 										$info ['video'] ['bits_per_sample'] = $info ['quicktime'] ['video'] ['color_depth'];
    714. 

  714. 									}
    715. 

  715. 									$info ['video'] ['lossless'] = false;
    716. 

  716. 									$info ['video'] ['pixel_aspect_ratio'] = ( float ) 1;
    717. 

  717. 									break;
    718. 

  718. 							}
    719. 

  719. 							break;
    720. 

  720. 					}
    721. 

  721. 					switch (strtolower ( $atom_structure ['sample_description_table'] [$i] ['data_format'] )) {
    722. 

  722. 						case 'mp4a' :
    723. 

  723. 							$info ['audio'] ['dataformat'] = 'mp4';
    724. 

  724. 							$info ['quicktime'] ['audio'] ['codec'] = 'mp4';
    725. 

  725. 							break;
    726. 

  726. 						
    727. 

  727. 						case '3ivx' :
    728. 

  728. 						case '3iv1' :
    729. 

  729. 						case '3iv2' :
    730. 

  730. 							$info ['video'] ['dataformat'] = '3ivx';
    731. 

  731. 							break;
    732. 

  732. 						
    733. 

  733. 						case 'xvid' :
    734. 

  734. 							$info ['video'] ['dataformat'] = 'xvid';
    735. 

  735. 							break;
    736. 

  736. 						
    737. 

  737. 						case 'mp4v' :
    738. 

  738. 							$info ['video'] ['dataformat'] = 'mpeg4';
    739. 

  739. 							break;
    740. 

  740. 						
    741. 

  741. 						case 'divx' :
    742. 

  742. 						case 'div1' :
    743. 

  743. 						case 'div2' :
    744. 

  744. 						case 'div3' :
    745. 

  745. 						case 'div4' :
    746. 

  746. 						case 'div5' :
    747. 

  747. 						case 'div6' :
    748. 

  748. 							$info ['video'] ['dataformat'] = 'divx';
    749. 

  749. 							break;
    750. 

  750. 						
    751. 

  751. 						default :
    752. 

  752. 							// do nothing
    753. 

  753. 							break;
    754. 

  754. 					}
    755. 

  755. 					unset ( $atom_structure ['sample_description_table'] [$i] ['data'] );
    756. 

  756. 				}
    757. 

  757. 				break;
    758. 

  758. 			
    759. 

  759. 			case 'stts' : // Sample Table Time-to-Sample atom
    760. 

  760. 				$atom_structure ['version'] = getid3_lib::BigEndian2Int ( substr ( $atom_data, 0, 1 ) );
    761. 

  761. 				$atom_structure ['flags_raw'] = getid3_lib::BigEndian2Int ( substr ( $atom_data, 1, 3 ) ); // hardcoded: 0x0000
    762. 

  762. 				$atom_structure ['number_entries'] = getid3_lib::BigEndian2Int ( substr ( $atom_data, 4, 4 ) );
    763. 

  763. 				$sttsEntriesDataOffset = 8;
    764. 

  764. 				//$FrameRateCalculatorArray = array();
    765. 

  765. 				$frames_count = 0;
    766. 

  766. 				for($i = 0; $i < $atom_structure ['number_entries']; $i ++) {
    767. 

  767. 					$atom_structure ['time_to_sample_table'] [$i] ['sample_count'] = getid3_lib::BigEndian2Int ( substr ( $atom_data, $sttsEntriesDataOffset, 4 ) );
    768. 

  768. 					$sttsEntriesDataOffset += 4;
    769. 

  769. 					$atom_structure ['time_to_sample_table'] [$i] ['sample_duration'] = getid3_lib::BigEndian2Int ( substr ( $atom_data, $sttsEntriesDataOffset, 4 ) );
    770. 

  770. 					$sttsEntriesDataOffset += 4;
    771. 

  771. 					
    772. 

  772. 					$frames_count += $atom_structure ['time_to_sample_table'] [$i] ['sample_count'];
    773. 

  773. 					
    774. 

  774. 					// THIS SECTION REPLACED WITH CODE IN "stbl" ATOM
    775. 

  775. 					//if (!empty($info['quicktime']['time_scale']) && ($atom_structure['time_to_sample_table'][$i]['sample_duration'] > 0)) {
    776. 

  776. 					//	$stts_new_framerate = $info['quicktime']['time_scale'] / $atom_structure['time_to_sample_table'][$i]['sample_duration'];
    777. 

  777. 					//	if ($stts_new_framerate <= 60) {
    778. 

  778. 					//		// some atoms have durations of "1" giving a very large framerate, which probably is not right
    779. 

  779. 					//		$info['video']['frame_rate'] = max($info['video']['frame_rate'], $stts_new_framerate);
    780. 

  780. 					//	}
    781. 

  781. 					//}
    782. 

  782. 					//
    783. 

  783. 					//$FrameRateCalculatorArray[($info['quicktime']['time_scale'] / $atom_structure['time_to_sample_table'][$i]['sample_duration'])] += $atom_structure['time_to_sample_table'][$i]['sample_count'];
    784. 

  784. 				}
    785. 

  785. 				$info ['quicktime'] ['stts_framecount'] [] = $frames_count;
    786. 

  786. 				//$sttsFramesTotal  = 0;
    787. 

  787. 				//$sttsSecondsTotal = 0;
    788. 

  788. 				//foreach ($FrameRateCalculatorArray as $frames_per_second => $frame_count) {
    789. 

  789. 				//	if (($frames_per_second > 60) || ($frames_per_second < 1)) {
    790. 

  790. 				//		// not video FPS information, probably audio information
    791. 

  791. 				//		$sttsFramesTotal  = 0;
    792. 

  792. 				//		$sttsSecondsTotal = 0;
    793. 

  793. 				//		break;
    794. 

  794. 				//	}
    795. 

  795. 				//	$sttsFramesTotal  += $frame_count;
    796. 

  796. 				//	$sttsSecondsTotal += $frame_count / $frames_per_second;
    797. 

  797. 				//}
    798. 

  798. 				//if (($sttsFramesTotal > 0) && ($sttsSecondsTotal > 0)) {
    799. 

  799. 				//	if (($sttsFramesTotal / $sttsSecondsTotal) > $info['video']['frame_rate']) {
    800. 

  800. 				//		$info['video']['frame_rate'] = $sttsFramesTotal / $sttsSecondsTotal;
    801. 

  801. 				//	}
    802. 

  802. 				//}
    803. 

  803. 				break;
    804. 

  804. 			
    805. 

  805. 			case 'stss' : // Sample Table Sync Sample (key frames) atom
    806. 

  806. 				if ($ParseAllPossibleAtoms) {
    807. 

  807. 					$atom_structure ['version'] = getid3_lib::BigEndian2Int ( substr ( $atom_data, 0, 1 ) );
    808. 

  808. 					$atom_structure ['flags_raw'] = getid3_lib::BigEndian2Int ( substr ( $atom_data, 1, 3 ) ); // hardcoded: 0x0000
    809. 

  809. 					$atom_structure ['number_entries'] = getid3_lib::BigEndian2Int ( substr ( $atom_data, 4, 4 ) );
    810. 

  810. 					$stssEntriesDataOffset = 8;
    811. 

  811. 					for($i = 0; $i < $atom_structure ['number_entries']; $i ++) {
    812. 

  812. 						$atom_structure ['time_to_sample_table'] [$i] = getid3_lib::BigEndian2Int ( substr ( $atom_data, $stssEntriesDataOffset, 4 ) );
    813. 

  813. 						$stssEntriesDataOffset += 4;
    814. 

  814. 					}
    815. 

  815. 				}
    816. 

  816. 				break;
    817. 

  817. 			
    818. 

  818. 			case 'stsc' : // Sample Table Sample-to-Chunk atom
    819. 

  819. 				if ($ParseAllPossibleAtoms) {
    820. 

  820. 					$atom_structure ['version'] = getid3_lib::BigEndian2Int ( substr ( $atom_data, 0, 1 ) );
    821. 

  821. 					$atom_structure ['flags_raw'] = getid3_lib::BigEndian2Int ( substr ( $atom_data, 1, 3 ) ); // hardcoded: 0x0000
    822. 

  822. 					$atom_structure ['number_entries'] = getid3_lib::BigEndian2Int ( substr ( $atom_data, 4, 4 ) );
    823. 

  823. 					$stscEntriesDataOffset = 8;
    824. 

  824. 					for($i = 0; $i < $atom_structure ['number_entries']; $i ++) {
    825. 

  825. 						$atom_structure ['sample_to_chunk_table'] [$i] ['first_chunk'] = getid3_lib::BigEndian2Int ( substr ( $atom_data, $stscEntriesDataOffset, 4 ) );
    826. 

  826. 						$stscEntriesDataOffset += 4;
    827. 

  827. 						$atom_structure ['sample_to_chunk_table'] [$i] ['samples_per_chunk'] = getid3_lib::BigEndian2Int ( substr ( $atom_data, $stscEntriesDataOffset, 4 ) );
    828. 

  828. 						$stscEntriesDataOffset += 4;
    829. 

  829. 						$atom_structure ['sample_to_chunk_table'] [$i] ['sample_description'] = getid3_lib::BigEndian2Int ( substr ( $atom_data, $stscEntriesDataOffset, 4 ) );
    830. 

  830. 						$stscEntriesDataOffset += 4;
    831. 

  831. 					}
    832. 

  832. 				}
    833. 

  833. 				break;
    834. 

  834. 			
    835. 

  835. 			case 'stsz' : // Sample Table SiZe atom
    836. 

  836. 				if ($ParseAllPossibleAtoms) {
    837. 

  837. 					$atom_structure ['version'] = getid3_lib::BigEndian2Int ( substr ( $atom_data, 0, 1 ) );
    838. 

  838. 					$atom_structure ['flags_raw'] = getid3_lib::BigEndian2Int ( substr ( $atom_data, 1, 3 ) ); // hardcoded: 0x0000
    839. 

  839. 					$atom_structure ['sample_size'] = getid3_lib::BigEndian2Int ( substr ( $atom_data, 4, 4 ) );
    840. 

  840. 					$atom_structure ['number_entries'] = getid3_lib::BigEndian2Int ( substr ( $atom_data, 8, 4 ) );
    841. 

  841. 					$stszEntriesDataOffset = 12;
    842. 

  842. 					if ($atom_structure ['sample_size'] == 0) {
    843. 

  843. 						for($i = 0; $i < $atom_structure ['number_entries']; $i ++) {
    844. 

  844. 							$atom_structure ['sample_size_table'] [$i] = getid3_lib::BigEndian2Int ( substr ( $atom_data, $stszEntriesDataOffset, 4 ) );
    845. 

  845. 							$stszEntriesDataOffset += 4;
    846. 

  846. 						}
    847. 

  847. 					}
    848. 

  848. 				}
    849. 

  849. 				break;
    850. 

  850. 			
    851. 

  851. 			case 'stco' : // Sample Table Chunk Offset atom
    852. 

  852. 				if ($ParseAllPossibleAtoms) {
    853. 

  853. 					$atom_structure ['version'] = getid3_lib::BigEndian2Int ( substr ( $atom_data, 0, 1 ) );
    854. 

  854. 					$atom_structure ['flags_raw'] = getid3_lib::BigEndian2Int ( substr ( $atom_data, 1, 3 ) ); // hardcoded: 0x0000
    855. 

  855. 					$atom_structure ['number_entries'] = getid3_lib::BigEndian2Int ( substr ( $atom_data, 4, 4 ) );
    856. 

  856. 					$stcoEntriesDataOffset = 8;
    857. 

  857. 					for($i = 0; $i < $atom_structure ['number_entries']; $i ++) {
    858. 

  858. 						$atom_structure ['chunk_offset_table'] [$i] = getid3_lib::BigEndian2Int ( substr ( $atom_data, $stcoEntriesDataOffset, 4 ) );
    859. 

  859. 						$stcoEntriesDataOffset += 4;
    860. 

  860. 					}
    861. 

  861. 				}
    862. 

  862. 				break;
    863. 

  863. 			
    864. 

  864. 			case 'co64' : // Chunk Offset 64-bit (version of "stco" that supports > 2GB files)
    865. 

  865. 				if ($ParseAllPossibleAtoms) {
    866. 

  866. 					$atom_structure ['version'] = getid3_lib::BigEndian2Int ( substr ( $atom_data, 0, 1 ) );
    867. 

  867. 					$atom_structure ['flags_raw'] = getid3_lib::BigEndian2Int ( substr ( $atom_data, 1, 3 ) ); // hardcoded: 0x0000
    868. 

  868. 					$atom_structure ['number_entries'] = getid3_lib::BigEndian2Int ( substr ( $atom_data, 4, 4 ) );
    869. 

  869. 					$stcoEntriesDataOffset = 8;
    870. 

  870. 					for($i = 0; $i < $atom_structure ['number_entries']; $i ++) {
    871. 

  871. 						$atom_structure ['chunk_offset_table'] [$i] = getid3_lib::BigEndian2Int ( substr ( $atom_data, $stcoEntriesDataOffset, 8 ) );
    872. 

  872. 						$stcoEntriesDataOffset += 8;
    873. 

  873. 					}
    874. 

  874. 				}
    875. 

  875. 				break;
    876. 

  876. 			
    877. 

  877. 			case 'dref' : // Data REFerence atom
    878. 

  878. 				$atom_structure ['version'] = getid3_lib::BigEndian2Int ( substr ( $atom_data, 0, 1 ) );
    879. 

  879. 				$atom_structure ['flags_raw'] = getid3_lib::BigEndian2Int ( substr ( $atom_data, 1, 3 ) ); // hardcoded: 0x0000
    880. 

  880. 				$atom_structure ['number_entries'] = getid3_lib::BigEndian2Int ( substr ( $atom_data, 4, 4 ) );
    881. 

  881. 				$drefDataOffset = 8;
    882. 

  882. 				for($i = 0; $i < $atom_structure ['number_entries']; $i ++) {
    883. 

  883. 					$atom_structure ['data_references'] [$i] ['size'] = getid3_lib::BigEndian2Int ( substr ( $atom_data, $drefDataOffset, 4 ) );
    884. 

  884. 					$drefDataOffset += 4;
    885. 

  885. 					$atom_structure ['data_references'] [$i] ['type'] = substr ( $atom_data, $drefDataOffset, 4 );
    886. 

  886. 					$drefDataOffset += 4;
    887. 

  887. 					$atom_structure ['data_references'] [$i] ['version'] = getid3_lib::BigEndian2Int ( substr ( $atom_data, $drefDataOffset, 1 ) );
    888. 

  888. 					$drefDataOffset += 1;
    889. 

  889. 					$atom_structure ['data_references'] [$i] ['flags_raw'] = getid3_lib::BigEndian2Int ( substr ( $atom_data, $drefDataOffset, 3 ) ); // hardcoded: 0x0000
    890. 

  890. 					$drefDataOffset += 3;
    891. 

  891. 					$atom_structure ['data_references'] [$i] ['data'] = substr ( $atom_data, $drefDataOffset, ($atom_structure ['data_references'] [$i] ['size'] - 4 - 4 - 1 - 3) );
    892. 

  892. 					$drefDataOffset += ($atom_structure ['data_references'] [$i] ['size'] - 4 - 4 - 1 - 3);
    893. 

  893. 					
    894. 

  894. 					$atom_structure ['data_references'] [$i] ['flags'] ['self_reference'] = ( bool ) ($atom_structure ['data_references'] [$i] ['flags_raw'] & 0x001);
    895. 

  895. 				}
    896. 

  896. 				break;
    897. 

  897. 			
    898. 

  898. 			case 'gmin' : // base Media INformation atom
    899. 

  899. 				$atom_structure ['version'] = getid3_lib::BigEndian2Int ( substr ( $atom_data, 0, 1 ) );
    900. 

  900. 				$atom_structure ['flags_raw'] = getid3_lib::BigEndian2Int ( substr ( $atom_data, 1, 3 ) ); // hardcoded: 0x0000
    901. 

  901. 				$atom_structure ['graphics_mode'] = getid3_lib::BigEndian2Int ( substr ( $atom_data, 4, 2 ) );
    902. 

  902. 				$atom_structure ['opcolor_red'] = getid3_lib::BigEndian2Int ( substr ( $atom_data, 6, 2 ) );
    903. 

  903. 				$atom_structure ['opcolor_green'] = getid3_lib::BigEndian2Int ( substr ( $atom_data, 8, 2 ) );
    904. 

  904. 				$atom_structure ['opcolor_blue'] = getid3_lib::BigEndian2Int ( substr ( $atom_data, 10, 2 ) );
    905. 

  905. 				$atom_structure ['balance'] = getid3_lib::BigEndian2Int ( substr ( $atom_data, 12, 2 ) );
    906. 

  906. 				$atom_structure ['reserved'] = getid3_lib::BigEndian2Int ( substr ( $atom_data, 14, 2 ) );
    907. 

  907. 				break;
    908. 

  908. 			
    909. 

  909. 			case 'smhd' : // Sound Media information HeaDer atom
    910. 

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

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

  912. 				$atom_structure ['balance'] = getid3_lib::BigEndian2Int ( substr ( $atom_data, 4, 2 ) );
    913. 

  913. 				$atom_structure ['reserved'] = getid3_lib::BigEndian2Int ( substr ( $atom_data, 6, 2 ) );
    914. 

  914. 				break;
    915. 

  915. 			
    916. 

  916. 			case 'vmhd' : // Video Media information HeaDer atom
    917. 

  917. 				$atom_structure ['version'] = getid3_lib::BigEndian2Int ( substr ( $atom_data, 0, 1 ) );
    918. 

  918. 				$atom_structure ['flags_raw'] = getid3_lib::BigEndian2Int ( substr ( $atom_data, 1, 3 ) );
    919. 

  919. 				$atom_structure ['graphics_mode'] = getid3_lib::BigEndian2Int ( substr ( $atom_data, 4, 2 ) );
    920. 

  920. 				$atom_structure ['opcolor_red'] = getid3_lib::BigEndian2Int ( substr ( $atom_data, 6, 2 ) );
    921. 

  921. 				$atom_structure ['opcolor_green'] = getid3_lib::BigEndian2Int ( substr ( $atom_data, 8, 2 ) );
    922. 

  922. 				$atom_structure ['opcolor_blue'] = getid3_lib::BigEndian2Int ( substr ( $atom_data, 10, 2 ) );
    923. 

  923. 				
    924. 

  924. 				$atom_structure ['flags'] ['no_lean_ahead'] = ( bool ) ($atom_structure ['flags_raw'] & 0x001);
    925. 

  925. 				break;
    926. 

  926. 			
    927. 

  927. 			case 'hdlr' : // HanDLeR reference atom
    928. 

  928. 				$atom_structure ['version'] = getid3_lib::BigEndian2Int ( substr ( $atom_data, 0, 1 ) );
    929. 

  929. 				$atom_structure ['flags_raw'] = getid3_lib::BigEndian2Int ( substr ( $atom_data, 1, 3 ) ); // hardcoded: 0x0000
    930. 

  930. 				$atom_structure ['component_type'] = substr ( $atom_data, 4, 4 );
    931. 

  931. 				$atom_structure ['component_subtype'] = substr ( $atom_data, 8, 4 );
    932. 

  932. 				$atom_structure ['component_manufacturer'] = substr ( $atom_data, 12, 4 );
    933. 

  933. 				$atom_structure ['component_flags_raw'] = getid3_lib::BigEndian2Int ( substr ( $atom_data, 16, 4 ) );
    934. 

  934. 				$atom_structure ['component_flags_mask'] = getid3_lib::BigEndian2Int ( substr ( $atom_data, 20, 4 ) );
    935. 

  935. 				$atom_structure ['component_name'] = $this->Pascal2String ( substr ( $atom_data, 24 ) );
    936. 

  936. 				
    937. 

  937. 				if (($atom_structure ['component_subtype'] == 'STpn') && ($atom_structure ['component_manufacturer'] == 'zzzz')) {
    938. 

  938. 					$info ['video'] ['dataformat'] = 'quicktimevr';
    939. 

  939. 				}
    940. 

  940. 				break;
    941. 

  941. 			
    942. 

  942. 			case 'mdhd' : // MeDia HeaDer atom
    943. 

  943. 				$atom_structure ['version'] = getid3_lib::BigEndian2Int ( substr ( $atom_data, 0, 1 ) );
    944. 

  944. 				$atom_structure ['flags_raw'] = getid3_lib::BigEndian2Int ( substr ( $atom_data, 1, 3 ) ); // hardcoded: 0x0000
    945. 

  945. 				$atom_structure ['creation_time'] = getid3_lib::BigEndian2Int ( substr ( $atom_data, 4, 4 ) );
    946. 

  946. 				$atom_structure ['modify_time'] = getid3_lib::BigEndian2Int ( substr ( $atom_data, 8, 4 ) );
    947. 

  947. 				$atom_structure ['time_scale'] = getid3_lib::BigEndian2Int ( substr ( $atom_data, 12, 4 ) );
    948. 

  948. 				$atom_structure ['duration'] = getid3_lib::BigEndian2Int ( substr ( $atom_data, 16, 4 ) );
    949. 

  949. 				$atom_structure ['language_id'] = getid3_lib::BigEndian2Int ( substr ( $atom_data, 20, 2 ) );
    950. 

  950. 				$atom_structure ['quality'] = getid3_lib::BigEndian2Int ( substr ( $atom_data, 22, 2 ) );
    951. 

  951. 				
    952. 

  952. 				if ($atom_structure ['time_scale'] == 0) {
    953. 

  953. 					$info ['error'] [] = 'Corrupt Quicktime file: mdhd.time_scale == zero';
    954. 

  954. 					return false;
    955. 

  955. 				}
    956. 

  956. 				$info ['quicktime'] ['time_scale'] = (isset ( $info ['quicktime'] ['time_scale'] ) ? max ( $info ['quicktime'] ['time_scale'], $atom_structure ['time_scale'] ) : $atom_structure ['time_scale']);
    957. 

  957. 				
    958. 

  958. 				$atom_structure ['creation_time_unix'] = getid3_lib::DateMac2Unix ( $atom_structure ['creation_time'] );
    959. 

  959. 				$atom_structure ['modify_time_unix'] = getid3_lib::DateMac2Unix ( $atom_structure ['modify_time'] );
    960. 

  960. 				$atom_structure ['playtime_seconds'] = $atom_structure ['duration'] / $atom_structure ['time_scale'];
    961. 

  961. 				$atom_structure ['language'] = $this->QuicktimeLanguageLookup ( $atom_structure ['language_id'] );
    962. 

  962. 				if (empty ( $info ['comments'] ['language'] ) || (! in_array ( $atom_structure ['language'], $info ['comments'] ['language'] ))) {
    963. 

  963. 					$info ['comments'] ['language'] [] = $atom_structure ['language'];
    964. 

  964. 				}
    965. 

  965. 				break;
    966. 

  966. 			
    967. 

  967. 			case 'pnot' : // Preview atom
    968. 

  968. 				$atom_structure ['modification_date'] = getid3_lib::BigEndian2Int ( substr ( $atom_data, 0, 4 ) ); // "standard Mac…
    969.

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