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/application/libraries/getid3/module.audio-video.riff.php

https://github.com/libis/Flandrica
PHP | 2391 lines | 1858 code | 404 blank | 129 comment | 248 complexity | fb6c7610710749b4a70742c09517cf5d MD5 | raw file
Possible License(s): GPL-3.0, LGPL-2.1, Apache-2.0

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  1. <?php
    2. 

  2. // +----------------------------------------------------------------------+
    3. 

  3. // | PHP version 5                                                        |
    4. 

  4. // +----------------------------------------------------------------------+
    5. 

  5. // | Copyright (c) 2002-2009 James Heinrich, Allan Hansen                 |
    6. 

  6. // +----------------------------------------------------------------------+
    7. 

  7. // | This source file is subject to version 2 of the GPL license,         |
    8. 

  8. // | that is bundled with this package in the file license.txt and is     |
    9. 

  9. // | available through the world-wide-web at the following url:           |
    10. 

  10. // | http://www.gnu.org/copyleft/gpl.html                                 |
    11. 

  11. // +----------------------------------------------------------------------+
    12. 

  12. // | getID3() - http://getid3.sourceforge.net or http://www.getid3.org    |
    13. 

  13. // +----------------------------------------------------------------------+
    14. 

  14. // | Authors: James Heinrich <infoŘgetid3*org>                            |
    15. 

  15. // |          Allan Hansen <ahŘartemis*dk>                                |
    16. 

  16. // +----------------------------------------------------------------------+
    17. 

  17. // | module.audio-video.riff.php                                          |
    18. 

  18. // | module for analyzing RIFF files:                                     |
    19. 

  19. // |    Wave, AVI, AIFF/AIFC, (MP3,AC3)/RIFF, Wavpack3, 8SVX              |
    20. 

  20. // | dependencies: module.audio.mp3.php (optional)                        |
    21. 

  21. // |               module.audio.ac3.php (optional)                        |
    22. 

  22. // |               module.audio.dts.php (optional)                        |
    23. 

  23. // |               module.audio-video.mpeg.php (optional)                 |
    24. 

  24. // +----------------------------------------------------------------------+
    25. 

  25. //
    26. 

  26. // $Id: module.audio-video.riff.php,v 1.10 2006/12/03 20:13:17 ah Exp $
    27. 

  27. 

  28. 

  29. 

  30. class getid3_riff extends getid3_handler
    31. 

  31. {
    32. 

  32. 

  33. 	private $endian_function = 'LittleEndian2Int';
    34. 

  34. 

  35. 

  36. 	public function Analyze() {
    37. 

  37. 

  38. 		$getid3 = $this->getid3;
    39. 

  39. 

  40. 		$getid3->info['riff']['raw'] = array ();
    41. 

  41. 		$info_riff             = &$getid3->info['riff'];
    42. 

  42. 		$info_riff_raw         = &$info_riff['raw'];
    43. 

  43. 		$info_audio            = &$getid3->info['audio'];
    44. 

  44. 		$info_video            = &$getid3->info['video'];
    45. 

  45. 		$info_avdataoffset     = &$getid3->info['avdataoffset'];
    46. 

  46. 		$info_avdataend        = &$getid3->info['avdataend'];
    47. 

  47. 		$info_audio_dataformat = &$info_audio['dataformat'];
    48. 

  48. 		$info_riff_audio       = &$info_riff['audio'];
    49. 

  49. 		$info_riff_video       = &$info_riff['video'];
    50. 

  50. 

  51. 		$original['avdataend'] = $info_avdataend;
    52. 

  52. 

  53. 		$this->fseek($info_avdataoffset, SEEK_SET);
    54. 

  54. 		$riff_header   = $this->fread(12);
    55. 

  55. 

  56. 		$riff_sub_type = substr($riff_header, 8, 4);
    57. 

  57. 

  58. 		switch (substr($riff_header, 0, 4)) {
    59. 

  59. 

  60. 			case 'FORM':
    61. 

  61. 				$getid3->info['fileformat'] = 'aiff';
    62. 

  62. 				$this->endian_function      = 'BigEndian2Int';
    63. 

  63. 				$riff_header_size           = getid3_lib::BigEndian2Int(substr($riff_header, 4, 4));
    64. 

  64. 				$info_riff[$riff_sub_type]  = $this->ParseRIFF($info_avdataoffset + 12, $info_avdataoffset + $riff_header_size);
    65. 

  65. 				$info_riff['header_size']   = $riff_header_size;
    66. 

  66. 				break;
    67. 

  67. 

  68. 

  69. 			case 'RIFF':
    70. 

  70. 			case 'SDSS':  // SDSS is identical to RIFF, just renamed. Used by SmartSound QuickTracks (www.smartsound.com)
    71. 

  71. 			case 'RMP3':  // RMP3 is identical to RIFF, just renamed. Used by [unknown program] when creating RIFF-MP3s
    72. 

  72. 

  73. 				if ($riff_sub_type == 'RMP3') {
    74. 

  74. 					$riff_sub_type = 'WAVE';
    75. 

  75. 				}
    76. 

  76. 

  77. 				$getid3->info['fileformat'] = 'riff';
    78. 

  78. 				$this->endian_function      = 'LittleEndian2Int';
    79. 

  79. 				$riff_header_size           = getid3_lib::LittleEndian2Int(substr($riff_header, 4, 4));
    80. 

  80. 				$info_riff[$riff_sub_type]  = $this->ParseRIFF($info_avdataoffset + 12, $info_avdataoffset + $riff_header_size);
    81. 

  81. 				$info_riff['header_size']   = $riff_header_size;
    82. 

  82. 				if ($riff_sub_type == 'WAVE') {
    83. 

  83. 					$info_riff_wave = &$info_riff['WAVE'];
    84. 

  84. 				}
    85. 

  85. 				break;
    86. 

  86. 

  87. 

  88. 			default:
    89. 

  89. 				throw new getid3_exception('Cannot parse RIFF (this is maybe not a RIFF / WAV / AVI file?) - expecting "FORM|RIFF|SDSS|RMP3" found "'.$riff_sub_type.'" instead');
    90. 

  90. 		}
    91. 

  91. 

  92. 		$endian_function = $this->endian_function;
    93. 

  93. 

  94. 		$stream_index = 0;
    95. 

  95. 		switch ($riff_sub_type) {
    96. 

  96. 

  97. 			case 'WAVE':
    98. 

  98. 

  99. 				if (empty($info_audio['bitrate_mode'])) {
    100. 

  100. 					$info_audio['bitrate_mode'] = 'cbr';
    101. 

  101. 				}
    102. 

  102. 

  103. 				if (empty($info_audio_dataformat)) {
    104. 

  104. 					$info_audio_dataformat = 'wav';
    105. 

  105. 				}
    106. 

  106. 

  107. 				if (isset($info_riff_wave['data'][0]['offset'])) {
    108. 

  108. 					$info_avdataoffset = $info_riff_wave['data'][0]['offset'] + 8;
    109. 

  109. 					$info_avdataend    = $info_avdataoffset + $info_riff_wave['data'][0]['size'];
    110. 

  110. 				}
    111. 

  111. 

  112. 				if (isset($info_riff_wave['fmt '][0]['data'])) {
    113. 

  113. 

  114. 					$info_riff_audio[$stream_index] = getid3_riff::RIFFparseWAVEFORMATex($info_riff_wave['fmt '][0]['data']);
    115. 

  115. 					$info_audio['wformattag'] = $info_riff_audio[$stream_index]['raw']['wFormatTag'];
    116. 

  116. 					$info_riff_raw['fmt '] = $info_riff_audio[$stream_index]['raw'];
    117. 

  117. 					unset($info_riff_audio[$stream_index]['raw']);
    118. 

  118. 					$info_audio['streams'][$stream_index] = $info_riff_audio[$stream_index];
    119. 

  119. 

  120. 					$info_audio = getid3_riff::array_merge_noclobber($info_audio, $info_riff_audio[$stream_index]);
    121. 

  121. 					if (substr($info_audio['codec'], 0, strlen('unknown: 0x')) == 'unknown: 0x') {
    122. 

  122. 						$getid3->warning('Audio codec = '.$info_audio['codec']);
    123. 

  123. 					}
    124. 

  124. 					$info_audio['bitrate'] = $info_riff_audio[$stream_index]['bitrate'];
    125. 

  125. 

  126. 					$getid3->info['playtime_seconds'] = (float)((($info_avdataend - $info_avdataoffset) * 8) / $info_audio['bitrate']);
    127. 

  127. 

  128. 					$info_audio['lossless'] = false;
    129. 

  129. 

  130. 					if (isset($info_riff_wave['data'][0]['offset']) && isset($info_riff_raw['fmt ']['wFormatTag'])) {
    131. 

  131. 

  132. 						switch ($info_riff_raw['fmt ']['wFormatTag']) {
    133. 

  133. 

  134. 							case 0x0001:  // PCM
    135. 

  135. 								$info_audio['lossless'] = true;
    136. 

  136. 								break;
    137. 

  137. 

  138. 							case 0x2000:  // AC-3
    139. 

  139. 								$info_audio_dataformat = 'ac3';
    140. 

  140. 								break;
    141. 

  141. 

  142. 							default:
    143. 

  143. 								// do nothing
    144. 

  144. 								break;
    145. 

  145. 

  146. 						}
    147. 

  147. 					}
    148. 

  148. 

  149. 					$info_audio['streams'][$stream_index]['wformattag']   = $info_audio['wformattag'];
    150. 

  150. 					$info_audio['streams'][$stream_index]['bitrate_mode'] = $info_audio['bitrate_mode'];
    151. 

  151. 					$info_audio['streams'][$stream_index]['lossless']     = $info_audio['lossless'];
    152. 

  152. 					$info_audio['streams'][$stream_index]['dataformat']   = $info_audio_dataformat;
    153. 

  153. 				}
    154. 

  154. 

  155. 

  156. 				if (isset($info_riff_wave['rgad'][0]['data'])) {
    157. 

  157. 

  158. 					// shortcuts
    159. 

  159. 					$rgadData = &$info_riff_wave['rgad'][0]['data'];
    160. 

  160. 					$info_riff_raw['rgad']    = array ('track'=>array(), 'album'=>array());
    161. 

  161. 					$info_riff_raw_rgad       = &$info_riff_raw['rgad'];
    162. 

  162. 					$info_riff_raw_rgad_track = &$info_riff_raw_rgad['track'];
    163. 

  163. 					$info_riff_raw_rgad_album = &$info_riff_raw_rgad['album'];
    164. 

  164. 

  165. 					$info_riff_raw_rgad['fPeakAmplitude']      = getid3_riff::BigEndian2Float(strrev(substr($rgadData, 0, 4)));   // LittleEndian2Float()
    166. 

  166. 					$info_riff_raw_rgad['nRadioRgAdjust']      = getid3_lib::$endian_function(substr($rgadData, 4, 2));
    167. 

  167. 					$info_riff_raw_rgad['nAudiophileRgAdjust'] = getid3_lib::$endian_function(substr($rgadData, 6, 2));
    168. 

  168. 

  169. 					$n_track_rg_adjust_bit_string              = str_pad(decbin($info_riff_raw_rgad['nRadioRgAdjust']),      16, '0', STR_PAD_LEFT);
    170. 

  170. 					$n_album_rg_adjust_bit_string              = str_pad(decbin($info_riff_raw_rgad['nAudiophileRgAdjust']), 16, '0', STR_PAD_LEFT);
    171. 

  171. 

  172. 					$info_riff_raw_rgad_track['name']          = bindec(substr($n_track_rg_adjust_bit_string, 0, 3));
    173. 

  173. 					$info_riff_raw_rgad_track['originator']    = bindec(substr($n_track_rg_adjust_bit_string, 3, 3));
    174. 

  174. 					$info_riff_raw_rgad_track['signbit']       = bindec($n_track_rg_adjust_bit_string[6]);
    175. 

  175. 					$info_riff_raw_rgad_track['adjustment']    = bindec(substr($n_track_rg_adjust_bit_string, 7, 9));
    176. 

  176. 					$info_riff_raw_rgad_album['name']          = bindec(substr($n_album_rg_adjust_bit_string, 0, 3));
    177. 

  177. 					$info_riff_raw_rgad_album['originator']    = bindec(substr($n_album_rg_adjust_bit_string, 3, 3));
    178. 

  178. 					$info_riff_raw_rgad_album['signbit']       = bindec($n_album_rg_adjust_bit_string[6]);
    179. 

  179. 					$info_riff_raw_rgad_album['adjustment']    = bindec(substr($n_album_rg_adjust_bit_string, 7, 9));
    180. 

  180. 

  181. 					$info_riff['rgad']['peakamplitude'] = $info_riff_raw_rgad['fPeakAmplitude'];
    182. 

  182. 					if (($info_riff_raw_rgad_track['name'] != 0) && ($info_riff_raw_rgad_track['originator'] != 0)) {
    183. 

  183. 						$info_riff['rgad']['track']['name']       = getid3_lib_replaygain::NameLookup($info_riff_raw_rgad_track['name']);
    184. 

  184. 						$info_riff['rgad']['track']['originator'] = getid3_lib_replaygain::OriginatorLookup($info_riff_raw_rgad_track['originator']);
    185. 

  185. 						$info_riff['rgad']['track']['adjustment'] = getid3_lib_replaygain::AdjustmentLookup($info_riff_raw_rgad_track['adjustment'], $info_riff_raw_rgad_track['signbit']);
    186. 

  186. 					}
    187. 

  187. 

  188. 					if (($info_riff_raw_rgad_album['name'] != 0) && ($info_riff_raw_rgad_album['originator'] != 0)) {
    189. 

  189. 						$info_riff['rgad']['album']['name']       = getid3_lib_replaygain::NameLookup($info_riff_raw_rgad_album['name']);
    190. 

  190. 						$info_riff['rgad']['album']['originator'] = getid3_lib_replaygain::OriginatorLookup($info_riff_raw_rgad_album['originator']);
    191. 

  191. 						$info_riff['rgad']['album']['adjustment'] = getid3_lib_replaygain::AdjustmentLookup($info_riff_raw_rgad_album['adjustment'], $info_riff_raw_rgad_album['signbit']);
    192. 

  192. 					}
    193. 

  193. 				}
    194. 

  194. 

  195. 				if (isset($info_riff_wave['fact'][0]['data'])) {
    196. 

  196. 

  197. 					$info_riff_raw['fact']['NumberOfSamples'] = getid3_lib::$endian_function(substr($info_riff_wave['fact'][0]['data'], 0, 4));
    198. 

  198. 

  199. 					// This should be a good way of calculating exact playtime, but some sample files have had incorrect number of samples, so cannot use this method
    200. 

  200. 					// if (!empty($info_riff_raw['fmt ']['nSamplesPerSec'])) {
    201. 

  201. 					//     $getid3->info['playtime_seconds'] = (float)$info_riff_raw['fact']['NumberOfSamples'] / $info_riff_raw['fmt ']['nSamplesPerSec'];
    202. 

  202. 					// }
    203. 

  203. 				}
    204. 

  204. 

  205. 

  206. 				if (!empty($info_riff_raw['fmt ']['nAvgBytesPerSec'])) {
    207. 

  207. 					$info_audio['bitrate'] = (int)$info_riff_raw['fmt ']['nAvgBytesPerSec'] * 8;
    208. 

  208. 				}
    209. 

  209. 

  210. 				if (isset($info_riff_wave['bext'][0]['data'])) {
    211. 

  211. 

  212. 					$info_riff_wave_bext_0 = &$info_riff_wave['bext'][0];
    213. 

  213. 

  214. 					getid3_lib::ReadSequence('LittleEndian2Int', $info_riff_wave_bext_0, $info_riff_wave_bext_0['data'], 0,
    215. 

  215. 						array (
    216. 

  216. 							'title'          => -256,
    217. 

  217. 							'author'         =>  -32,
    218. 

  218. 							'reference'      =>  -32,
    219. 

  219. 							'origin_date'    =>  -10,
    220. 

  220. 							'origin_time'    =>   -8,
    221. 

  221. 							'time_reference' =>    8,
    222. 

  222. 							'bwf_version'    =>    1,
    223. 

  223. 							'reserved'       =>  254
    224. 

  224. 						)
    225. 

  225. 					);
    226. 

  226. 

  227. 					foreach (array ('title', 'author', 'reference') as $key) {
    228. 

  228. 						$info_riff_wave_bext_0[$key] = trim($info_riff_wave_bext_0[$key]);
    229. 

  229. 					}
    230. 

  230. 

  231. 					$info_riff_wave_bext_0['coding_history'] = explode("\r\n", trim(substr($info_riff_wave_bext_0['data'], 601)));
    232. 

  232. 

  233. 					$info_riff_wave_bext_0['origin_date_unix'] = gmmktime(substr($info_riff_wave_bext_0['origin_time'], 0, 2),
    234. 

  234. 																		  substr($info_riff_wave_bext_0['origin_time'], 3, 2),
    235. 

  235. 																		  substr($info_riff_wave_bext_0['origin_time'], 6, 2),
    236. 

  236. 																		  substr($info_riff_wave_bext_0['origin_date'], 5, 2),
    237. 

  237. 																		  substr($info_riff_wave_bext_0['origin_date'], 8, 2),
    238. 

  238. 																		  substr($info_riff_wave_bext_0['origin_date'], 0, 4));
    239. 

  239. 

  240. 					$info_riff['comments']['author'][] = $info_riff_wave_bext_0['author'];
    241. 

  241. 					$info_riff['comments']['title'][]  = $info_riff_wave_bext_0['title'];
    242. 

  242. 				}
    243. 

  243. 

  244. 				if (isset($info_riff_wave['MEXT'][0]['data'])) {
    245. 

  245. 

  246. 					$info_riff_wave_mext_0 = &$info_riff_wave['MEXT'][0];
    247. 

  247. 

  248. 					$info_riff_wave_mext_0['raw']['sound_information']      = getid3_lib::LittleEndian2Int(substr($info_riff_wave_mext_0['data'], 0, 2));
    249. 

  249. 					$info_riff_wave_mext_0['flags']['homogenous']           = (bool)($info_riff_wave_mext_0['raw']['sound_information'] & 0x0001);
    250. 

  250. 					if ($info_riff_wave_mext_0['flags']['homogenous']) {
    251. 

  251. 						$info_riff_wave_mext_0['flags']['padding']          = ($info_riff_wave_mext_0['raw']['sound_information'] & 0x0002) ? false : true;
    252. 

  252. 						$info_riff_wave_mext_0['flags']['22_or_44']         = (bool)($info_riff_wave_mext_0['raw']['sound_information'] & 0x0004);
    253. 

  253. 						$info_riff_wave_mext_0['flags']['free_format']      = (bool)($info_riff_wave_mext_0['raw']['sound_information'] & 0x0008);
    254. 

  254. 

  255. 						$info_riff_wave_mext_0['nominal_frame_size']        = getid3_lib::LittleEndian2Int(substr($info_riff_wave_mext_0['data'], 2, 2));
    256. 

  256. 					}
    257. 

  257. 					$info_riff_wave_mext_0['anciliary_data_length']         = getid3_lib::LittleEndian2Int(substr($info_riff_wave_mext_0['data'], 6, 2));
    258. 

  258. 					$info_riff_wave_mext_0['raw']['anciliary_data_def']     = getid3_lib::LittleEndian2Int(substr($info_riff_wave_mext_0['data'], 8, 2));
    259. 

  259. 					$info_riff_wave_mext_0['flags']['anciliary_data_left']  = (bool)($info_riff_wave_mext_0['raw']['anciliary_data_def'] & 0x0001);
    260. 

  260. 					$info_riff_wave_mext_0['flags']['anciliary_data_free']  = (bool)($info_riff_wave_mext_0['raw']['anciliary_data_def'] & 0x0002);
    261. 

  261. 					$info_riff_wave_mext_0['flags']['anciliary_data_right'] = (bool)($info_riff_wave_mext_0['raw']['anciliary_data_def'] & 0x0004);
    262. 

  262. 				}
    263. 

  263. 

  264. 				if (isset($info_riff_wave['cart'][0]['data'])) {
    265. 

  265. 

  266. 					$info_riff_wave_cart_0 = &$info_riff_wave['cart'][0];
    267. 

  267. 

  268. 					getid3_lib::ReadSequence('LittleEndian2Int', $info_riff_wave_cart_0, $info_riff_wave_cart_0['data'], 0,
    269. 

  269. 						array (
    270. 

  270. 							'version'              => -4,
    271. 

  271. 							'title'                => -64,
    272. 

  272. 							'artist'               => -64,
    273. 

  273. 							'cut_id'               => -64,
    274. 

  274. 							'client_id'            => -64,
    275. 

  275. 							'category'             => -64,
    276. 

  276. 							'classification'       => -64,
    277. 

  277. 							'out_cue'              => -64,
    278. 

  278. 							'start_date'           => -10,
    279. 

  279. 							'start_time'           => -8,
    280. 

  280. 							'end_date'             => -10,
    281. 

  281. 							'end_time'             => -8,
    282. 

  282. 							'producer_app_id'      => -64,
    283. 

  283. 							'producer_app_version' => -64,
    284. 

  284. 							'user_defined_text'    => -64,
    285. 

  285. 						)
    286. 

  286. 					);
    287. 

  287. 

  288. 					foreach (array ('artist', 'cut_id', 'client_id', 'category', 'classification', 'out_cue', 'start_date', 'start_time', 'end_date', 'end_time', 'producer_app_id', 'producer_app_version', 'user_defined_text') as $key) {
    289. 

  289. 						$info_riff_wave_cart_0[$key] = trim($info_riff_wave_cart_0[$key]);
    290. 

  290. 					}
    291. 

  291. 

  292. 					$info_riff_wave_cart_0['zero_db_reference'] = getid3_lib::LittleEndian2Int(substr($info_riff_wave_cart_0['data'], 680, 4), true);
    293. 

  293. 

  294. 					for ($i = 0; $i < 8; $i++) {
    295. 

  295. 						$info_riff_wave_cart_0['post_time'][$i]['usage_fourcc'] =                              substr($info_riff_wave_cart_0['data'], 684 + ($i * 8), 4);
    296. 

  296. 						$info_riff_wave_cart_0['post_time'][$i]['timer_value']  = getid3_lib::LittleEndian2Int(substr($info_riff_wave_cart_0['data'], 684 + ($i * 8) + 4, 4));
    297. 

  297. 					}
    298. 

  298. 					$info_riff_wave_cart_0['url']              =                 trim(substr($info_riff_wave_cart_0['data'],  748, 1024));
    299. 

  299. 					$info_riff_wave_cart_0['tag_text']         = explode("\r\n", trim(substr($info_riff_wave_cart_0['data'], 1772)));
    300. 

  300. 

  301. 					$info_riff['comments']['artist'][] = $info_riff_wave_cart_0['artist'];
    302. 

  302. 					$info_riff['comments']['title'][]  = $info_riff_wave_cart_0['title'];
    303. 

  303. 				}
    304. 

  304. 

  305. 

  306. 				if (isset($info_riff_wave['SNDM'][0]['data'])) {
    307. 

  307. 					// SoundMiner metadata
    308. 

  308. 

  309. 					// shortcuts
    310. 

  310. 					$info_riff_wave_SNDM_0      = &$info_riff_wave['SNDM'][0];
    311. 

  311. 					$info_riff_wave_SNDM_0_data = &$info_riff_wave_SNDM_0['data'];
    312. 

  312. 					$SNDM_startoffset = 0;
    313. 

  313. 					$SNDM_endoffset   = $info_riff_wave_SNDM_0['size'];
    314. 

  314. 

  315. 					while ($SNDM_startoffset < $SNDM_endoffset) {
    316. 

  316. 						$SNDM_thisTagOffset = 0;
    317. 

  317. 						$SNDM_thisTagSize      = getid3_lib::BigEndian2Int(substr($info_riff_wave_SNDM_0_data, $SNDM_startoffset + $SNDM_thisTagOffset, 4));
    318. 

  318. 						$SNDM_thisTagOffset += 4;
    319. 

  319. 						$SNDM_thisTagKey       =                           substr($info_riff_wave_SNDM_0_data, $SNDM_startoffset + $SNDM_thisTagOffset, 4);
    320. 

  320. 						$SNDM_thisTagOffset += 4;
    321. 

  321. 						$SNDM_thisTagDataSize  = getid3_lib::BigEndian2Int(substr($info_riff_wave_SNDM_0_data, $SNDM_startoffset + $SNDM_thisTagOffset, 2));
    322. 

  322. 						$SNDM_thisTagOffset += 2;
    323. 

  323. 						$SNDM_thisTagDataFlags = getid3_lib::BigEndian2Int(substr($info_riff_wave_SNDM_0_data, $SNDM_startoffset + $SNDM_thisTagOffset, 2));
    324. 

  324. 						$SNDM_thisTagOffset += 2;
    325. 

  325. 						$SNDM_thisTagDataText =                            substr($info_riff_wave_SNDM_0_data, $SNDM_startoffset + $SNDM_thisTagOffset, $SNDM_thisTagDataSize);
    326. 

  326. 						$SNDM_thisTagOffset += $SNDM_thisTagDataSize;
    327. 

  327. 

  328. 						if ($SNDM_thisTagSize != (4 + 4 + 2 + 2 + $SNDM_thisTagDataSize)) {
    329. 

  329. 							$getid3->warning('RIFF.WAVE.SNDM.data contains tag not expected length (expected: '.$SNDM_thisTagSize.', found: '.(4 + 4 + 2 + 2 + $SNDM_thisTagDataSize).') at offset '.$SNDM_startoffset.' (file offset '.($info_riff_wave_SNDM_0['offset'] + $SNDM_startoffset).')');
    330. 

  330. 							break;
    331. 

  331. 						} elseif ($SNDM_thisTagSize <= 0) {
    332. 

  332. 							$getid3->warning('RIFF.WAVE.SNDM.data contains zero-size tag at offset '.$SNDM_startoffset.' (file offset '.($info_riff_wave_SNDM_0['offset'] + $SNDM_startoffset).')');
    333. 

  333. 							break;
    334. 

  334. 						}
    335. 

  335. 						$SNDM_startoffset += $SNDM_thisTagSize;
    336. 

  336. 

  337. 						$info_riff_wave_SNDM_0['parsed_raw'][$SNDM_thisTagKey] = $SNDM_thisTagDataText;
    338. 

  338. 						$parsedkey = $this->RIFFwaveSNDMtagLookup($SNDM_thisTagKey);
    339. 

  339. 						if ($parsedkey) {
    340. 

  340. 							$info_riff_wave_SNDM_0['parsed'][$parsedkey] = $SNDM_thisTagDataText;
    341. 

  341. 						} else {
    342. 

  342. 							$getid3->warning('RIFF.WAVE.SNDM contains unknown tag "'.$SNDM_thisTagKey.'" at offset '.$SNDM_startoffset.' (file offset '.($info_riff_wave_SNDM_0['offset'] + $SNDM_startoffset).')');
    343. 

  343. 						}
    344. 

  344. 					}
    345. 

  345. 

  346. 					$tagmapping = array(
    347. 

  347. 						'tracktitle'=>'title',
    348. 

  348. 						'category'  =>'genre',
    349. 

  349. 						'cdtitle'   =>'album',
    350. 

  350. 						'tracktitle'=>'title',
    351. 

  351. 					);
    352. 

  352. 					foreach ($tagmapping as $fromkey => $tokey) {
    353. 

  353. 						if (isset($info_riff_wave_SNDM_0['parsed'][$fromkey])) {
    354. 

  354. 							$info_riff['comments'][$tokey][] = $info_riff_wave_SNDM_0['parsed'][$fromkey];
    355. 

  355. 						}
    356. 

  356. 					}
    357. 

  357. 				}
    358. 

  358. 

  359. 

  360. 				if (!isset($info_audio['bitrate']) && isset($info_riff_audio[$stream_index]['bitrate'])) {
    361. 

  361. 					$info_audio['bitrate'] = $info_riff_audio[$stream_index]['bitrate'];
    362. 

  362. 					$getid3->info['playtime_seconds'] = (float)((($info_avdataend - $info_avdataoffset) * 8) / $info_audio['bitrate']);
    363. 

  363. 				}
    364. 

  364. 

  365. 				if (@$getid3->info['wavpack']) {
    366. 

  366. 

  367. 					if (!$this->data_string_flag)  {
    368. 

  368. 

  369. 						$info_audio_dataformat      = 'wavpack';
    370. 

  370. 						$info_audio['bitrate_mode'] = 'vbr';
    371. 

  371. 						$info_audio['encoder']      = 'WavPack v'.$getid3->info['wavpack']['version'];
    372. 

  372. 

  373. 						// Reset to the way it was - RIFF parsing will have messed this up
    374. 

  374. 						$info_avdataend        = $original['avdataend'];
    375. 

  375. 						$info_audio['bitrate'] = (($info_avdataend - $info_avdataoffset) * 8) / $getid3->info['playtime_seconds'];
    376. 

  376. 

  377. 						$this->fseek($info_avdataoffset - 44, SEEK_SET);
    378. 

  378. 						$riff_data = $this->fread(44);
    379. 

  379. 						$orignal_riff_header_size = getid3_lib::LittleEndian2Int(substr($riff_data,  4, 4)) +  8;
    380. 

  380. 						$orignal_riff_data_size   = getid3_lib::LittleEndian2Int(substr($riff_data, 40, 4)) + 44;
    381. 

  381. 

  382. 						if ($orignal_riff_header_size > $orignal_riff_data_size) {
    383. 

  383. 							$info_avdataend -= ($orignal_riff_header_size - $orignal_riff_data_size);
    384. 

  384. 							$this->fseek($info_avdataend, SEEK_SET);
    385. 

  385. 							$riff_data .= $this->fread($orignal_riff_header_size - $orignal_riff_data_size);
    386. 

  386. 						}
    387. 

  387. 

  388. 						// move the data chunk after all other chunks (if any)
    389. 

  389. 						// so that the RIFF parser doesn't see EOF when trying
    390. 

  390. 						// to skip over the data chunk
    391. 

  391. 						$riff_data = substr($riff_data, 0, 36).substr($riff_data, 44).substr($riff_data, 36, 8);
    392. 

  392. 

  393. 						// Save audio info key
    394. 

  394. 						$saved_info_audio = $info_audio;
    395. 

  395. 

  396. 						// Analyze riff_data
    397. 

  397. 						$this->AnalyzeString($riff_data);
    398. 

  398. 

  399. 						// Restore info key
    400. 

  400. 						$info_audio = $saved_info_audio;
    401. 

  401. 					}
    402. 

  402. 				}
    403. 

  403. 

  404. 				if (isset($info_riff_raw['fmt ']['wFormatTag'])) {
    405. 

  405. 

  406. 					switch ($info_riff_raw['fmt ']['wFormatTag']) {
    407. 

  407. 

  408. 						case 0x08AE: // ClearJump LiteWave
    409. 

  409. 							$info_audio['bitrate_mode'] = 'vbr';
    410. 

  410. 							$info_audio_dataformat      = 'litewave';
    411. 

  411. 

  412. 							//typedef struct tagSLwFormat {
    413. 

  413. 							//  WORD    m_wCompFormat;     // low byte defines compression method, high byte is compression flags
    414. 

  414. 							//  DWORD   m_dwScale;         // scale factor for lossy compression
    415. 

  415. 							//  DWORD   m_dwBlockSize;     // number of samples in encoded blocks
    416. 

  416. 							//  WORD    m_wQuality;        // alias for the scale factor
    417. 

  417. 							//  WORD    m_wMarkDistance;   // distance between marks in bytes
    418. 

  418. 							//  WORD    m_wReserved;
    419. 

  419. 							//
    420. 

  420. 							//  //following paramters are ignored if CF_FILESRC is not set
    421. 

  421. 							//  DWORD   m_dwOrgSize;       // original file size in bytes
    422. 

  422. 							//  WORD    m_bFactExists;     // indicates if 'fact' chunk exists in the original file
    423. 

  423. 							//  DWORD   m_dwRiffChunkSize; // riff chunk size in the original file
    424. 

  424. 							//
    425. 

  425. 							//  PCMWAVEFORMAT m_OrgWf;     // original wave format
    426. 

  426. 							// }SLwFormat, *PSLwFormat;
    427. 

  427. 

  428. 							$info_riff['litewave']['raw'] = array ();
    429. 

  429. 							$info_riff_litewave           = &$info_riff['litewave'];
    430. 

  430. 							$info_riff_litewave_raw       = &$info_riff_litewave['raw'];
    431. 

  431. 

  432. 							getid3_lib::ReadSequence('LittleEndian2Int', $info_riff_litewave_raw, $info_riff_wave['fmt '][0]['data'], 18,
    433. 

  433. 								array (
    434. 

  434. 									'compression_method' => 1,
    435. 

  435. 									'compression_flags'  => 1,
    436. 

  436. 									'm_dwScale'          => 4,
    437. 

  437. 									'm_dwBlockSize'      => 4,
    438. 

  438. 									'm_wQuality'         => 2,
    439. 

  439. 									'm_wMarkDistance'    => 2,
    440. 

  440. 									'm_wReserved'        => 2,
    441. 

  441. 									'm_dwOrgSize'        => 4,
    442. 

  442. 									'm_bFactExists'      => 2,
    443. 

  443. 									'm_dwRiffChunkSize'  => 4
    444. 

  444. 								)
    445. 

  445. 							);
    446. 

  446. 

  447. 							//$info_riff_litewave['quality_factor'] = intval(round((2000 - $info_riff_litewave_raw['m_dwScale']) / 20));
    448. 

  448. 							$info_riff_litewave['quality_factor'] = $info_riff_litewave_raw['m_wQuality'];
    449. 

  449. 

  450. 							$info_riff_litewave['flags']['raw_source']    = ($info_riff_litewave_raw['compression_flags'] & 0x01) ? false : true;
    451. 

  451. 							$info_riff_litewave['flags']['vbr_blocksize'] = ($info_riff_litewave_raw['compression_flags'] & 0x02) ? false : true;
    452. 

  452. 							$info_riff_litewave['flags']['seekpoints']    = (bool)($info_riff_litewave_raw['compression_flags'] & 0x04);
    453. 

  453. 

  454. 							$info_audio['lossless']        = (($info_riff_litewave_raw['m_wQuality'] == 100) ? true : false);
    455. 

  455. 							$info_audio['encoder_options'] = '-q'.$info_riff_litewave['quality_factor'];
    456. 

  456. 							break;
    457. 

  457. 					}
    458. 

  458. 				}
    459. 

  459. 

  460. 				if ($info_avdataend > $getid3->info['filesize']) {
    461. 

  461. 

  462. 					switch (@$info_audio_dataformat) {
    463. 

  463. 

  464. 						case 'wavpack': // WavPack
    465. 

  465. 						case 'lpac':    // LPAC
    466. 

  466. 						case 'ofr':     // OptimFROG
    467. 

  467. 						case 'ofs':     // OptimFROG DualStream
    468. 

  468. 							// lossless compressed audio formats that keep original RIFF headers - skip warning
    469. 

  469. 							break;
    470. 

  470. 

  471. 

  472. 						case 'litewave':
    473. 

  473. 							if (($info_avdataend - $getid3->info['filesize']) == 1) {
    474. 

  474. 								// LiteWave appears to incorrectly *not* pad actual output file
    475. 

  475. 								// to nearest WORD boundary so may appear to be short by one
    476. 

  476. 								// byte, in which case - skip warning
    477. 

  477. 							} else {
    478. 

  478. 								// Short by more than one byte, throw warning
    479. 

  479. 								$getid3->warning('Probably truncated file - expecting '.$info_riff[$riff_sub_type]['data'][0]['size'].' bytes of data, only found '.($getid3->info['filesize'] - $info_avdataoffset).' (short by '.($info_riff[$riff_sub_type]['data'][0]['size'] - ($getid3->info['filesize'] - $info_avdataoffset)).' bytes)');
    480. 

  480. 							}
    481. 

  481. 							break;
    482. 

  482. 

  483. 

  484. 						default:
    485. 

  485. 							if ((($info_avdataend - $getid3->info['filesize']) == 1) && (($info_riff[$riff_sub_type]['data'][0]['size'] % 2) == 0) && ((($getid3->info['filesize'] - $info_avdataoffset) % 2) == 1)) {
    486. 

  486. 								// output file appears to be incorrectly *not* padded to nearest WORD boundary
    487. 

  487. 								// Output less severe warning
    488. 

  488. 								$getid3->warning('File should probably be padded to nearest WORD boundary, but it is not (expecting '.$info_riff[$riff_sub_type]['data'][0]['size'].' bytes of data, only found '.($getid3->info['filesize'] - $info_avdataoffset).' therefore short by '.($info_riff[$riff_sub_type]['data'][0]['size'] - ($getid3->info['filesize'] - $info_avdataoffset)).' bytes)');
    489. 

  489. 								$info_avdataend = $getid3->info['filesize'];
    490. 

  490. 								break;
    491. 

  491. 

  492. 							}
    493. 

  493. 							// Short by more than one byte, throw warning
    494. 

  494. 							$getid3->warning('Probably truncated file - expecting '.$info_riff[$riff_sub_type]['data'][0]['size'].' bytes of data, only found '.($getid3->info['filesize'] - $info_avdataoffset).' (short by '.($info_riff[$riff_sub_type]['data'][0]['size'] - ($getid3->info['filesize'] - $info_avdataoffset)).' bytes)');
    495. 

  495. 							$info_avdataend = $getid3->info['filesize'];
    496. 

  496. 							break;
    497. 

  497. 					}
    498. 

  498. 				}
    499. 

  499. 

  500. 				if (!empty($getid3->info['mpeg']['audio']['LAME']['audio_bytes'])) {
    501. 

  501. 					if ((($info_avdataend - $info_avdataoffset) - $getid3->info['mpeg']['audio']['LAME']['audio_bytes']) == 1) {
    502. 

  502. 						$info_avdataend--;
    503. 

  503. 						$getid3->warning('Extra null byte at end of MP3 data assumed to be RIFF padding and therefore ignored');
    504. 

  504. 					}
    505. 

  505. 				}
    506. 

  506. 

  507. 				if (@$info_audio_dataformat == 'ac3') {
    508. 

  508. 					unset($info_audio['bits_per_sample']);
    509. 

  509. 					if (!empty($getid3->info['ac3']['bitrate']) && ($getid3->info['ac3']['bitrate'] != $info_audio['bitrate'])) {
    510. 

  510. 						$info_audio['bitrate'] = $getid3->info['ac3']['bitrate'];
    511. 

  511. 					}
    512. 

  512. 				}
    513. 

  513. 				break;
    514. 

  514. 

  515. 

  516. 			case 'AVI ':
    517. 

  517. 				$info_video['bitrate_mode'] = 'vbr'; // maybe not, but probably
    518. 

  518. 				$info_video['dataformat']   = 'avi';
    519. 

  519. 				$getid3->info['mime_type']  = 'video/avi';
    520. 

  520. 

  521. 				if (isset($info_riff[$riff_sub_type]['movi']['offset'])) {
    522. 

  522. 					$info_avdataoffset = $info_riff[$riff_sub_type]['movi']['offset'] + 8;
    523. 

  523. 					$info_avdataend    = $info_avdataoffset + $info_riff[$riff_sub_type]['movi']['size'];
    524. 

  524. 					if ($info_avdataend > $getid3->info['filesize']) {
    525. 

  525. 						$getid3->warning('Probably truncated file - expecting '.$info_riff[$riff_sub_type]['movi']['size'].' bytes of data, only found '.($getid3->info['filesize'] - $info_avdataoffset).' (short by '.($info_riff[$riff_sub_type]['movi']['size'] - ($getid3->info['filesize'] - $info_avdataoffset)).' bytes)');
    526. 

  526. 						$info_avdataend = $getid3->info['filesize'];
    527. 

  527. 					}
    528. 

  528. 				}
    529. 

  529. 

  530. 				if (isset($info_riff['AVI ']['hdrl']['avih'][$stream_index]['data'])) {
    531. 

  531. 					$avihData = $info_riff['AVI ']['hdrl']['avih'][$stream_index]['data'];
    532. 

  532. 

  533. 					$info_riff_raw['avih'] = array ();
    534. 

  534. 					$info_riff_raw_avih = &$info_riff_raw['avih'];
    535. 

  535. 

  536. 					getid3_lib::ReadSequence($this->endian_function, $info_riff_raw_avih, $avihData, 0,
    537. 

  537. 						array (
    538. 

  538. 							'dwMicroSecPerFrame'    => 4, // frame display rate (or 0L)
    539. 

  539. 							'dwMaxBytesPerSec'      => 4, // max. transfer rate
    540. 

  540. 							'dwPaddingGranularity'  => 4, // pad to multiples of this size; normally 2K.
    541. 

  541. 							'dwFlags'               => 4, // the ever-present flags
    542. 

  542. 							'dwTotalFrames'         => 4, // # frames in file
    543. 

  543. 							'dwInitialFrames'       => 4,
    544. 

  544. 							'dwStreams'             => 4,
    545. 

  545. 							'dwSuggestedBufferSize' => 4,
    546. 

  546. 							'dwWidth'               => 4,
    547. 

  547. 							'dwHeight'              => 4,
    548. 

  548. 							'dwScale'               => 4,
    549. 

  549. 							'dwRate'                => 4,
    550. 

  550. 							'dwStart'               => 4,
    551. 

  551. 							'dwLength'              => 4
    552. 

  552. 						)
    553. 

  553. 					);
    554. 

  554. 

  555. 					$info_riff_raw_avih['flags']['hasindex']     = (bool)($info_riff_raw_avih['dwFlags'] & 0x00000010);
    556. 

  556. 					$info_riff_raw_avih['flags']['mustuseindex'] = (bool)($info_riff_raw_avih['dwFlags'] & 0x00000020);
    557. 

  557. 					$info_riff_raw_avih['flags']['interleaved']  = (bool)($info_riff_raw_avih['dwFlags'] & 0x00000100);
    558. 

  558. 					$info_riff_raw_avih['flags']['trustcktype']  = (bool)($info_riff_raw_avih['dwFlags'] & 0x00000800);
    559. 

  559. 					$info_riff_raw_avih['flags']['capturedfile'] = (bool)($info_riff_raw_avih['dwFlags'] & 0x00010000);
    560. 

  560. 					$info_riff_raw_avih['flags']['copyrighted']  = (bool)($info_riff_raw_avih['dwFlags'] & 0x00020010);
    561. 

  561. 

  562. 					$info_riff_video[$stream_index] = array ();
    563. 

  563. 					$info_riff_video_current = &$info_riff_video[$stream_index];
    564. 

  564. 

  565. 					if ($info_riff_raw_avih['dwWidth'] > 0) {
    566. 

  566. 						$info_riff_video_current['frame_width'] = $info_riff_raw_avih['dwWidth'];
    567. 

  567. 						$info_video['resolution_x']             = $info_riff_video_current['frame_width'];
    568. 

  568. 					}
    569. 

  569. 

  570. 					if ($info_riff_raw_avih['dwHeight'] > 0) {
    571. 

  571. 						$info_riff_video_current['frame_height'] = $info_riff_raw_avih['dwHeight'];
    572. 

  572. 						$info_video['resolution_y']              = $info_riff_video_current['frame_height'];
    573. 

  573. 					}
    574. 

  574. 

  575. 					if ($info_riff_raw_avih['dwTotalFrames'] > 0) {
    576. 

  576. 						$info_riff_video_current['total_frames'] = $info_riff_raw_avih['dwTotalFrames'];
    577. 

  577. 						$info_video['total_frames']              = $info_riff_video_current['total_frames'];
    578. 

  578. 					}
    579. 

  579. 

  580. 					$info_riff_video_current['frame_rate'] = round(1000000 / $info_riff_raw_avih['dwMicroSecPerFrame'], 3);
    581. 

  581. 					$info_video['frame_rate'] = $info_riff_video_current['frame_rate'];
    582. 

  582. 				}
    583. 

  583. 

  584. 				if (isset($info_riff['AVI ']['hdrl']['strl']['strh'][0]['data'])) {
    585. 

  585. 					if (is_array($info_riff['AVI ']['hdrl']['strl']['strh'])) {
    586. 

  586. 						for ($i = 0; $i < count($info_riff['AVI ']['hdrl']['strl']['strh']); $i++) {
    587. 

  587. 							if (isset($info_riff['AVI ']['hdrl']['strl']['strh'][$i]['data'])) {
    588. 

  588. 								$strh_data = $info_riff['AVI ']['hdrl']['strl']['strh'][$i]['data'];
    589. 

  589. 								$strh_fcc_type = substr($strh_data,  0, 4);
    590. 

  590. 

  591. 								if (isset($info_riff['AVI ']['hdrl']['strl']['strf'][$i]['data'])) {
    592. 

  592. 									$strf_data = $info_riff['AVI ']['hdrl']['strl']['strf'][$i]['data'];
    593. 

  593. 

  594. 									// shortcut
    595. 

  595. 									$info_riff_raw_strf_strh_fcc_type_stream_index = &$info_riff_raw['strf'][$strh_fcc_type][$stream_index];
    596. 

  596. 

  597. 									switch ($strh_fcc_type) {
    598. 

  598. 										case 'auds':
    599. 

  599. 											$info_audio['bitrate_mode'] = 'cbr';
    600. 

  600. 											$info_audio_dataformat      = 'wav';
    601. 

  601. 											if (isset($info_riff_audio) && is_array($info_riff_audio)) {
    602. 

  602. 												$stream_index = count($info_riff_audio);
    603. 

  603. 											}
    604. 

  604. 

  605. 											$info_riff_audio[$stream_index] = getid3_riff::RIFFparseWAVEFORMATex($strf_data);
    606. 

  606. 											$info_audio['wformattag'] = $info_riff_audio[$stream_index]['raw']['wFormatTag'];
    607. 

  607. 

  608. 											// shortcut
    609. 

  609. 											$info_audio['streams'][$stream_index] = $info_riff_audio[$stream_index];
    610. 

  610. 											$info_audio_streams_currentstream = &$info_audio['streams'][$stream_index];
    611. 

  611. 

  612. 											if (@$info_audio_streams_currentstream['bits_per_sample'] === 0) {
    613. 

  613. 												unset($info_audio_streams_currentstream['bits_per_sample']);
    614. 

  614. 											}
    615. 

  615. 											$info_audio_streams_currentstream['wformattag'] = $info_audio_streams_currentstream['raw']['wFormatTag'];
    616. 

  616. 											unset($info_audio_streams_currentstream['raw']);
    617. 

  617. 

  618. 											// shortcut
    619. 

  619. 											$info_riff_raw['strf'][$strh_fcc_type][$stream_index] = $info_riff_audio[$stream_index]['raw'];
    620. 

  620. 

  621. 											unset($info_riff_audio[$stream_index]['raw']);
    622. 

  622. 											$info_audio = getid3_riff::array_merge_noclobber($info_audio, $info_riff_audio[$stream_index]);
    623. 

  623. 

  624. 											$info_audio['lossless'] = false;
    625. 

  625. 											switch ($info_riff_raw_strf_strh_fcc_type_stream_index['wFormatTag']) {
    626. 

  626. 

  627. 												case 0x0001:  // PCM
    628. 

  628. 													$info_audio_dataformat  = 'wav';
    629. 

  629. 													$info_audio['lossless'] = true;
    630. 

  630. 													break;
    631. 

  631. 

  632. 												case 0x0050: // MPEG Layer 2 or Layer 1
    633. 

  633. 													$info_audio_dataformat = 'mp2'; // Assume Layer-2
    634. 

  634. 													break;
    635. 

  635. 

  636. 												case 0x0055: // MPEG Layer 3
    637. 

  637. 													$info_audio_dataformat = 'mp3';
    638. 

  638. 													break;
    639. 

  639. 

  640. 												case 0x00FF: // AAC
    641. 

  641. 													$info_audio_dataformat = 'aac';
    642. 

  642. 													break;
    643. 

  643. 

  644. 												case 0x0161: // Windows Media v7 / v8 / v9
    645. 

  645. 												case 0x0162: // Windows Media Professional v9
    646. 

  646. 												case 0x0163: // Windows Media Lossess v9
    647. 

  647. 													$info_audio_dataformat = 'wma';
    648. 

  648. 													break;
    649. 

  649. 

  650. 												case 0x2000: // AC-3
    651. 

  651. 													$info_audio_dataformat = 'ac3';
    652. 

  652. 													break;
    653. 

  653. 

  654. 												case 0x2001: // DTS
    655. 

  655. 													$info_audio_dataformat = 'dts';
    656. 

  656. 													break;
    657. 

  657. 

  658. 												default:
    659. 

  659. 													$info_audio_dataformat = 'wav';
    660. 

  660. 													break;
    661. 

  661. 											}
    662. 

  662. 											$info_audio_streams_currentstream['dataformat']   = $info_audio_dataformat;
    663. 

  663. 											$info_audio_streams_currentstream['lossless']     = $info_audio['lossless'];
    664. 

  664. 											$info_audio_streams_currentstream['bitrate_mode'] = $info_audio['bitrate_mode'];
    665. 

  665. 											break;
    666. 

  666. 

  667. 

  668. 										case 'iavs':
    669. 

  669. 										case 'vids':
    670. 

  670. 											// shortcut
    671. 

  671. 											$info_riff_raw['strh'][$i]  = array ();
    672. 

  672. 											$info_riff_raw_strh_current = &$info_riff_raw['strh'][$i];
    673. 

  673. 

  674. 											getid3_lib::ReadSequence($this->endian_function, $info_riff_raw_strh_current, $strh_data, 0,
    675. 

  675. 												array (
    676. 

  676. 													'fccType'               => -4, // same as $strh_fcc_type;
    677. 

  677. 													'fccHandler'            => -4,
    678. 

  678. 													'dwFlags'               => 4, // Contains AVITF_* flags
    679. 

  679. 													'wPriority'             => 2,
    680. 

  680. 													'wLanguage'             => 2,
    681. 

  681. 													'dwInitialFrames'       => 4,
    682. 

  682. 													'dwScale'               => 4,
    683. 

  683. 													'dwRate'                => 4,
    684. 

  684. 													'dwStart'               => 4,
    685. 

  685. 													'dwLength'              => 4,
    686. 

  686. 													'dwSuggestedBufferSize' => 4,
    687. 

  687. 													'dwQuality'             => 4,
    688. 

  688. 													'dwSampleSize'          => 4,
    689. 

  689. 													'rcFrame'               => 4
    690. 

  690. 												)
    691. 

  691. 											);
    692. 

  692. 

  693. 											$info_riff_video_current['codec'] = getid3_riff::RIFFfourccLookup($info_riff_raw_strh_current['fccHandler']);
    694. 

  694. 											$info_video['fourcc']             = $info_riff_raw_strh_current['fccHandler'];
    695. 

  695. 

  696. 											if (!$info_riff_video_current['codec'] && isset($info_riff_raw_strf_strh_fcc_type_stream_index['fourcc']) && getid3_riff::RIFFfourccLookup($info_riff_raw_strf_strh_fcc_type_stream_index['fourcc'])) {
    697. 

  697. 												$info_riff_video_current['codec'] = getid3_riff::RIFFfourccLookup($info_riff_raw_strf_strh_fcc_type_stream_index['fourcc']);
    698. 

  698. 												$info_video['fourcc']             = $info_riff_raw_strf_strh_fcc_type_stream_index['fourcc'];
    699. 

  699. 											}
    700. 

  700. 

  701. 											$info_video['codec']              = $info_riff_video_current['codec'];
    702. 

  702. 											$info_video['pixel_aspect_ratio'] = (float)1;
    703. 

  703. 

  704. 											switch ($info_riff_raw_strh_current['fccHandler']) {
    705. 

  705. 

  706. 												case 'HFYU': // Huffman Lossless Codec
    707. 

  707. 												case 'IRAW': // Intel YUV Uncompressed
    708. 

  708. 												case 'YUY2': // Uncompressed YUV 4:2:2
    709. 

  709. 													$info_video['lossless'] = true;
    710. 

  710. 													break;
    711. 

  711. 

  712. 												default:
    713. 

  713. 													$info_video['lossless'] = false;
    714. 

  714. 													break;
    715. 

  715. 											}
    716. 

  716. 

  717. 											switch ($strh_fcc_type) {
    718. 

  718. 

  719. 												case 'vids':
    720. 

  720. 													getid3_lib::ReadSequence($this->endian_function, $info_riff_raw_strf_strh_fcc_type_stream_index, $strf_data, 0,
    721. 

  721. 														array (
    722. 

  722. 															'biSize'          => 4, // number of bytes required by the BITMAPINFOHEADER structure
    723. 

  723. 															'biWidth'         => 4, // width of the bitmap in pixels
    724. 

  724. 															'biHeight'        => 4, // height of the bitmap in pixels. If biHeight is positive, the bitmap is a 'bottom-up' DIB and its origin is the lower left corner. If biHeight is negative, the bitmap is a 'top-down' DIB and its origin is the upper left corner
    725. 

  725. 															'biPlanes'        => 2, // number of color planes on the target device. In most cases this value must be set to 1
    726. 

  726. 															'biBitCount'      => 2, // Specifies the number of bits per pixels
    727. 

  727. 															'fourcc'          => -4, //
    728. 

  728. 															'biSizeImage'     => 4, // size of the bitmap data section of the image (the actual pixel data, excluding BITMAPINFOHEADER and RGBQUAD structures)
    729. 

  729. 															'biXPelsPerMeter' => 4, // horizontal resolution, in pixels per metre, of the target device
    730. 

  730. 															'biYPelsPerMeter' => 4, // vertical resolution, in pixels per metre, of the target device
    731. 

  731. 															'biClrUsed'       => 4, // actual number of color indices in the color table used by the bitmap. If this value is zero, the bitmap uses the maximum number of colors corresponding to the value of the biBitCount member for the compression mode specified by biCompression
    732. 

  732. 															'biClrImportant'  => 4 // number of color indices that are considered important for displaying the bitmap. If this value is zero, all colors are important
    733. 

  733. 														)
    734. 

  734. 													);
    735. 

  735. 

  736. 													$info_video['bits_per_sample'] = $info_riff_raw_strf_strh_fcc_type_stream_index['biBitCount'];
    737. 

  737. 

  738. 													if ($info_riff_video_current['codec'] == 'DV') {
    739. 

  739. 														$info_riff_video_current['dv_type'] = 2;
    740. 

  740. 													}
    741. 

  741. 													break;
    742. 

  742. 

  743. 												case 'iavs':
    744. 

  744. 													$info_riff_video_current['dv_type'] = 1;
    745. 

  745. 													break;
    746. 

  746. 											}
    747. 

  747. 											break;
    748. 

  748. 

  749. 										default:
    750. 

  750. 											$getid3->warning('Unhandled fccType for stream ('.$i.'): "'.$strh_fcc_type.'"');
    751. 

  751. 											break;
    752. 

  752. 

  753. 									}
    754. 

  754. 								}
    755. 

  755. 							}
    756. 

  756. 

  757. 							if (isset($info_riff_raw_strf_strh_fcc_type_stream_index['fourcc']) && getid3_riff::RIFFfourccLookup($info_riff_raw_strf_strh_fcc_type_stream_index['fourcc'])) {
    758. 

  758. 

  759. 								$info_riff_video_current['codec'] = getid3_riff::RIFFfourccLookup($info_riff_raw_strf_strh_fcc_type_stream_index['fourcc']);
    760. 

  760. 								$info_video['codec']              = $info_riff_video_current['codec'];
    761. 

  761. 								$info_video['fourcc']             = $info_riff_raw_strf_strh_fcc_type_stream_index['fourcc'];
    762. 

  762. 

  763. 								switch ($info_riff_raw_strf_strh_fcc_type_stream_index['fourcc']) {
    764. 

  764. 

  765. 									case 'HFYU': // Huffman Lossless Codec
    766. 

  766. 									case 'IRAW': // Intel YUV Uncompressed
    767. 

  767. 									case 'YUY2': // Uncompressed YUV 4:2:2
    768. 

  768. 										$info_video['lossless']        = true;
    769. 

  769. 										$info_video['bits_per_sample'] = 24;
    770. 

  770. 										break;
    771. 

  771. 

  772. 									default:
    773. 

  773. 										$info_video['lossless']        = false;
    774. 

  774. 										$info_video['bits_per_sample'] = 24;
    775. 

  775. 										break;
    776. 

  776. 								}
    777. 

  777. 

  778. 							}
    779. 

  779. 						}
    780. 

  780. 					}
    781. 

  781. 				}
    782. 

  782. 				break;
    783. 

  783. 

  784. 

  785. 			case 'CDDA':
    786. 

  786. 				$info_audio['bitrate_mode'] = 'cbr';
    787. 

  787. 				$info_audio_dataformat      = 'cda';
    788. 

  788. 				$info_audio['lossless']     = true;
    789. 

  789. 				unset($getid3->info['mime_type']);
    790. 

  790. 

  791. 				$info_avdataoffset = 44;
    792. 

  792. 

  793. 				if (isset($info_riff['CDDA']['fmt '][0]['data'])) {
    794. 

  794. 

  795. 					$info_riff_cdda_fmt_0 = &$info_riff['CDDA']['fmt '][0];
    796. 

  796. 

  797. 					getid3_lib::ReadSequence($this->endian_function, $info_riff_cdda_fmt_0, $info_riff_cdda_fmt_0['data'], 0,
    798. 

  798. 						array (
    799. 

  799. 							'unknown1'           => 2,
    800. 

  800. 							'track_num'          => 2,
    801. 

  801. 							'disc_id'            => 4,
    802. 

  802. 							'start_offset_frame' => 4,
    803. 

  803. 							'playtime_frames'    => 4,
    804. 

  804. 							'unknown6'           => 4,
    805. 

  805. 							'unknown7'           => 4
    806. 

  806. 						)
    807. 

  807. 					);
    808. 

  808. 

  809. 					$info_riff_cdda_fmt_0['start_offset_seconds'] = (float)$info_riff_cdda_fmt_0['start_offset_frame'] / 75;
    810. 

  810. 					$info_riff_cdda_fmt_0['playtime_seconds']     = (float)$info_riff_cdda_fmt_0['playtime_frames'] / 75;
    811. 

  811. 					$getid3->info['comments']['track']            = $info_riff_cdda_fmt_0['track_num'];
    812. 

  812. 					$getid3->info['playtime_seconds']             = $info_riff_cdda_fmt_0['playtime_seconds'];
    813. 

  813. 

  814. 					// hardcoded data for CD-audio
    815. 

  815. 					$info_audio['sample_rate']     = 44100;
    816. 

  816. 					$info_audio['channels']        = 2;
    817. 

  817. 					$info_audio['bits_per_sample'] = 16;
    818. 

  818. 					$info_audio['bitrate']         = $info_audio['sample_rate'] * $info_audio['channels'] * $info_audio['bits_per_sample'];
    819. 

  819. 					$info_audio['bitrate_mode']    = 'cbr';
    820. 

  820. 				}
    821. 

  821. 				break;
    822. 

  822. 

  823. 

  824. 			case 'AIFF':
    825. 

  825. 			case 'AIFC':
    826. 

  826. 				$info_audio['bitrate_mode'] = 'cbr';
    827. 

  827. 				$info_audio_dataformat      = 'aiff';
    828. 

  828. 				$info_audio['lossless']     = true;
    829. 

  829. 				$getid3->info['mime_type']      = 'audio/x-aiff';
    830. 

  830. 

  831. 				if (isset($info_riff[$riff_sub_type]['SSND'][0]['offset'])) {
    832. 

  832. 					$info_avdataoffset = $info_riff[$riff_sub_type]['SSND'][0]['offset'] + 8;
    833. 

  833. 					$info_avdataend    = $info_avdataoffset + $info_riff[$riff_sub_type]['SSND'][0]['size'];
    834. 

  834. 					if ($info_avdataend > $getid3->info['filesize']) {
    835. 

  835. 						if (($info_avdataend == ($getid3->info['filesize'] + 1)) && (($getid3->info['filesize'] % 2) == 1)) {
    836. 

  836. 							// structures rounded to 2-byte boundary, but dumb encoders
    837. 

  837. 							// forget to pad end of file to make this actually work
    838. 

  838. 						} else {
    839. 

  839. 							$getid3->warning('Probable truncated AIFF file: expecting '.$info_riff[$riff_sub_type]['SSND'][0]['size'].' bytes of audio data, only '.($getid3->info['filesize'] - $info_avdataoffset).' bytes found');
    840. 

  840. 						}
    841. 

  841. 						$info_avdataend = $getid3->info['filesize'];
    842. 

  842. 					}
    843. 

  843. 				}
    844. 

  844. 

  845. 				if (isset($info_riff[$riff_sub_type]['COMM'][0]['data'])) {
    846. 

  846. 

  847. 					// shortcut
    848. 

  848. 					$info_riff_RIFFsubtype_COMM_0_data = &$info_riff[$riff_sub_type]['COMM'][0]['data'];
    849. 

  849. 

  850. 					$info_riff_audio['channels']         = getid3_lib::BigEndianSyncSafe2Int(substr($info_riff_RIFFsubtype_COMM_0_data,  0,  2));
    851. 

  851. 					$info_riff_audio['total_samples']    = getid3_lib::BigEndian2Int(        substr($info_riff_RIFFsubtype_COMM_0_data,  2,  4));
    852. 

  852. 					$info_riff_audio['bits_per_sample']  = getid3_lib::BigEndianSyncSafe2Int(substr($info_riff_RIFFsubtype_COMM_0_data,  6,  2));
    853. 

  853. 					$info_riff_audio['sample_rate']      = (int)getid3_riff::BigEndian2Float(substr($info_riff_RIFFsubtype_COMM_0_data,  8, 10));
    854. 

  854. 

  855. 					if ($info_riff[$riff_sub_type]['COMM'][0]['size'] > 18) {
    856. 

  856. 						$info_riff_audio['codec_fourcc'] =                           substr($info_riff_RIFFsubtype_COMM_0_data, 18,  4);
    857. 

  857. 						$codec_name_size                 = getid3_lib::BigEndian2Int(substr($info_riff_RIFFsubtype_COMM_0_data, 22,  1));
    858. 

  858. 						$info_riff_audio['codec_name']   =                           substr($info_riff_RIFFsubtype_COMM_0_data, 23,  $codec_name_size);
    859. 

  859. 

  860. 						switch ($info_riff_audio['codec_name']) {
    861. 

  861. 

  862. 							case 'NONE':
    863. 

  863. 								$info_audio['codec']    = 'Pulse Code Modulation (PCM)';
    864. 

  864. 								$info_audio['lossless'] = true;
    865. 

  865. 								break;
    866. 

  866. 

  867. 							case '':
    868. 

  868. 								switch ($info_riff_audio['codec_fourcc']) {
    869. 

  869. 

  870. 									// http://developer.apple.com/qa/snd/snd07.html
    871. 

  871. 									case 'sowt':
    872. 

  872. 										$info_riff_audio['codec_name'] = 'Two\'s Compliment Little-Endian PCM';
    873. 

  873. 										$info_audio['lossless'] = true;
    874. 

  874. 										break;
    875. 

  875. 

  876. 									case 'twos':
    877. 

  877. 										$info_riff_audio['codec_name'] = 'Two\'s Compliment Big-Endian PCM';
    878. 

  878. 										$info_audio['lossless'] = true;
    879. 

  879. 										break;
    880. 

  880. 

  881. 									default:
    882. 

  882. 										break;
    883. 

  883. 								}
    884. 

  884. 								break;
    885. 

  885. 

  886. 							default:
    887. 

  887. 								$info_audio['codec']    = $info_riff_audio['codec_name'];
    888. 

  888. 								$info_audio['lossless'] = false;
    889. 

  889. 								break;
    890. 

  890. 						}
    891. 

  891. 					}
    892. 

  892. 

  893. 					$info_audio['channels'] = $info_riff_audio['channels'];
    894. 

  894. 

  895. 					if ($info_riff_audio['bits_per_sample'] > 0) {
    896. 

  896. 						$info_audio['bits_per_sample'] = $info_riff_audio['bits_per_sample'];
    897. 

  897. 					}
    898. 

  898. 

  899. 					$info_audio['sample_rate']        = $info_riff_audio['sample_rate'];
    900. 

  900. 					$getid3->info['playtime_seconds'] = $info_riff_audio['total_samples'] / $info_audio['sample_rate'];
    901. 

  901. 				}
    902. 

  902. 

  903. 				if (isset($info_riff[$riff_sub_type]['COMT'])) {
    904. 

  904. 

  905. 					$comment_count = getid3_lib::BigEndian2Int(substr($info_riff[$riff_sub_type]['COMT'][0]['data'], 0, 2));
    906. 

  906. 					$offset = 2;
    907. 

  907. 

  908. 					for ($i = 0; $i < $comment_count; $i++) {
    909. 

  909. 

  910. 						$getid3->info['comments_raw'][$i]['timestamp'] = getid3_lib::BigEndian2Int(        substr($info_riff[$riff_sub_type]['COMT'][0]['data'], $offset, 4));
    911. 

  911. 						$offset += 4;
    912. 

  912. 

  913. 						$getid3->info['comments_raw'][$i]['marker_id'] = getid3_lib::BigEndianSyncSafe2Int(substr($info_riff[$riff_sub_type]['COMT'][0]['data'], $offset, 2));
    914. 

  914. 						$offset += 2;
    915. 

  915. 

  916. 						$comment_length                                = getid3_lib::BigEndian2Int(        substr($info_riff[$riff_sub_type]['COMT'][0]['data'], $offset, 2));
    917. 

  917. 						$offset += 2;
    918. 

  918. 

  919. 						$getid3->info['comments_raw'][$i]['comment']   =                                   substr($info_riff[$riff_sub_type]['COMT'][0]['data'], $offset, $comment_length);
    920. 

  920. 						$offset += $comment_length;
    921. 

  921. 

  922. 						$getid3->info['comments_raw'][$i]['timestamp_unix'] = getid3_riff::DateMac2Unix($getid3->info['comments_raw'][$i]['timestamp']);
    923. 

  923. 						$info_riff['comments']['comment'][] = $getid3->info['comments_raw'][$i]['comment'];
    924. 

  924. 					}
    925. 

  925. 				}
    926. 

  926. 

  927. 				foreach (array ('NAME'=>'title', 'author'=>'artist', '(c) '=>'copyright', 'ANNO'=>'comment') as $key => $value) {
    928. 

  928. 					if (isset($info_riff[$riff_sub_type][$key][0]['data'])) {
    929. 

  929. 						$info_riff['comments'][$value][] = $info_riff[$riff_sub_type][$key][0]['data'];
    930. 

  930. 					}
    931. 

  931. 				}
    932. 

  932. 				break;
    933. 

  933. 

  934. 

  935. 			case '8SVX':
    936. 

  936. 				$info_audio['bitrate_mode']    = 'cbr';
    937. 

  937. 				$info_audio_dataformat         = '8svx';
    938. 

  938. 				$info_audio['bits_per_sample'] = 8;
    939. 

  939. 				$info_audio['channels']        = 1; // overridden below, if need be
    940. 

  940. 				$getid3->info['mime_type']     = 'audio/x-aiff';
    941. 

  941. 

  942. 				if (isset($info_riff[$riff_sub_type]['BODY'][0]['offset'])) {
    943. 

  943. 					$info_avdataoffset = $info_riff[$riff_sub_type]['BODY'][0]['offset'] + 8;
    944. 

  944. 					$info_avdataend    = $info_avdataoffset + $info_riff[$riff_sub_type]['BODY'][0]['size'];
    945. 

  945. 					if ($info_avdataend > $getid3->info['filesize']) {
    946. 

  946. 						$getid3->warning('Probable truncated AIFF file: expecting '.$info_riff[$riff_sub_type]['BODY'][0]['size'].' bytes of audio data, only '.($getid3->info['filesize'] - $info_avdataoffset).' bytes found');
    947. 

  947. 					}
    948. 

  948. 				}
    949. 

  949. 

  950. 				if (isset($info_riff[$riff_sub_type]['VHDR'][0]['offset'])) {
    951. 

  951. 					// shortcut
    952. 

  952. 					$info_riff_riff_sub_type_vhdr_0 = &$info_riff[$riff_sub_type]['VHDR'][0];
    953. 

  953. 

  954. 					getid3_lib::ReadSequence('BigEndian2Int', $info_riff_riff_sub_type_vhdr_0, $info_riff_riff_sub_type_vhdr_0['data'], 0,
    955. 

  955. 						array (
    956. 

  956. 							'oneShotHiSamples'  => 4,
    957. 

  957. 							'repeatHiSamples'   => 4,
    958. 

  958. 							'samplesPerHiCycle' => 4,
    959. 

  959. 							'samplesPerSec'     => 2,
    960. 

  960. 							'ctOctave'          => 1,
    961. 

  961. 							'sCompression'      => 1,
    962. 

  962. 							'Volume'            => -4
    963. 

  963. 						)
    964. 

  964. 					);
    965. 

  965. 

  966. 					$info_riff_riff_sub_type_vhdr_0['Volume'] = getid3_riff::FixedPoint16_16($info_riff_riff_sub_type_vhdr_0['Volume']);
    967. 

  967. 

  968. 					$info_audio['sample_rate'] = $info_riff_riff_sub_type_vhdr_0['samplesPerSec'];
    969. 

  969. 

  970. 					switch ($info_riff_riff_sub_type_vhdr_0['sCompression']) {
    971. 

  971. 						case 0:
    972. 

  972. 							$info_audio['codec']    = 'Pulse Code Modulation (PCM)';
    973. 

  973. 							$info_audio['lossless'] = true;
    974. 

  974. 							$actual_bits_per_sample = 8;
    975. 

  975. 							break;
    976. 

  976. 

  977. 						case 1:
    978. 

  978. 							$info_audio['codec']    = 'Fibonacci-delta encoding';
    979. 

  979. 							$info_audio['lossless'] = false;
    980. 

  980. 							$actual_bits_per_sample = 4;
    981. 

  981. 							break;
    982. 

  982. 

  983. 						default:
    984. 

  984. 							$getid3->warning('Unexpected sCompression value in 8SVX.VHDR chunk - expecting 0 or 1, found "'.sCompression.'"');
    985. 

  985. 							break;
    986. 

  986. 					}
    987. 

  987. 				}
    988. 

  988. 

  989. 				if (isset($info_riff[$riff_sub_type]['CHAN'][0]['data'])) {
    990. 

  990. 					$ChannelsIndex = getid3_lib::BigEndian2Int(substr($info_riff[$riff_sub_type]['CHAN'][0]['data'], 0, 4));
    991. 

  991. 					switch ($ChannelsIndex) {
    992. 

  992. 						case 6: // Stereo
    993. 

  993. 							$info_audio['channels'] = 2;
    994. 

  994. 							break;
    995. 

  995. 

  996. 						case 2: // Left channel only
    997. 

  997. 						case 4: // Right channel only
    998. 

  998. 							$info_audio['channels'] = 1;
    999. 

  999. 							break;
    1000. 

  1000. 

  1001. 						default:
    1002. 

  1002. 							$getid3->warning('Unexpected value in 8SVX.CHAN chunk - expecting 2 or 4 or 6, found "'.$ChannelsIndex.'"');
    1003. 

  1003. 							break;
    1004. 

  1004. 					}
    1005. 

  1005. 

  1006. 				}
    1007. 

  1007. 

  1008. 				foreach (array ('NAME'=>'title', 'author'=>'artist', '(c) '=>'copyright', 'ANNO'=>'comment') as $key => $value) {
    1009. 

  1009. 					if (isset($info_riff[$riff_sub_type][$key][0]['data'])) {
    1010. 

  1010. 						$info_riff['comments'][$value][] = $info_riff[$riff_sub_type][$key][0]['data'];
    1011. 

  1011. 					}
    1012. 

  1012. 				}
    1013. 

  1013. 

  1014. 				$info_audio['bitrate'] = $info_audio['sample_rate'] * $actual_bits_per_sample * $info_audio['channels'];
    1015. 

  1015. 				if (!empty($info_audio['bitrate'])) {
    1016. 

  1016. 					$getid3->info['playtime_seconds'] = ($info_avdataend - $info_avdataoffset) / ($info_audio['bitrate'] / 8);
    1017. 

  1017. 				}
    1018. 

  1018. 				break;
    1019. 

  1019. 

  1020. 

  1021. 			case 'CDXA':
    1022. 

  1022. 

  1023. 				$getid3->info['mime_type'] = 'video/mpeg';
    1024. 

  1024. 				if (!empty($info_riff['CDXA']['data'][0]['size'])) {
    1025. 

  1025. 					$GETID3_ERRORARRAY = &$getid3->info['warning'];
    1026. 

  1026. 

  1027. 					if (!$getid3->include_module_optional('audio-video.mpeg')) {
    1028. 

  1028. 						$getid3->warning('MPEG skipped because mpeg module is missing.');
    1029. 

  1029. 					}
    1030. 

  1030. 

  1031. 					else {
    1032. 

  1032. 

  1033. 						// Clone getid3 - messing with offsets - better safe than sorry
    1034. 

  1034. 						$clone = clone $getid3;
    1035. 

  1035. 

  1036. 						// Analyse
    1037. 

  1037. 						$mpeg = new getid3_mpeg($clone);
    1038. 

  1038. 						$mpeg->Analyze();
    1039. 

  1039. 

  1040. 						// Import from clone and destroy
    1041. 

  1041. 						$getid3->info['audio']   = $clone->info['audio'];
    1042. 

  1042. 						$getid3->info['video']   = $clone->info['video'];
    1043. 

  1043. 						$getid3->info['mpeg']    = $clone->info['mpeg'];
    1044. 

  1044. 						$getid3->info['warning'] = $clone->info['warning'];
    1045. 

  1045. 

  1046. 						unset($clone);
    1047. 

  1047. 					}
    1048. 

  1048. 				}
    1049. 

  1049. 

  1050. 				break;
    1051. 

  1051. 

  1052. 

  1053. 			default:
    1054. 

  1054. 				throw new getid3_exception('Unknown RIFF type: expecting one of (WAVE|RMP3|AVI |CDDA|AIFF|AIFC|8SVX|CDXA), found "'.$riff_sub_type.'" instead');
    1055. 

  1055. 		}
    1056. 

  1056. 

  1057. 

  1058. 		if (@$info_riff_raw['fmt ']['wFormatTag'] == 1) {
    1059. 

  1059. 

  1060. 			// http://www.mega-nerd.com/erikd/Blog/Windiots/dts.html
    1061. 

  1061. 			$this->fseek($getid3->info['avdataoffset'], SEEK_SET);
    1062. 

  1062. 			$bytes4 = $this->fread(4);
    1063. 

  1063. 

  1064. 			// DTSWAV
    1065. 

  1065. 			if (preg_match('/^\xFF\x1F\x00\xE8/s', $bytes4)) {
    1066. 

  1066. 				$info_audio_dataformat = 'dts';
    1067. 

  1067. 			}
    1068. 

  1068. 

  1069. 			// DTS, but this probably shouldn't happen
    1070. 

  1070. 			elseif (preg_match('/^\x7F\xFF\x80\x01/s', $bytes4)) {
    1071. 

  1071. 				$info_audio_dataformat = 'dts';
    1072. 

  1072. 			}
    1073. 

  1073. 		}
    1074. 

  1074. 

  1075. 		if (@is_array($info_riff_wave['DISP'])) {
    1076. 

  1076. 			$info_riff['comments']['title'][] = trim(substr($info_riff_wave['DISP'][count($info_riff_wave['DISP']) - 1]['data'], 4));
    1077. 

  1077. 		}
    1078. 

  1078. 

  1079. 		if (@is_array($info_riff_wave['INFO'])) {
    1080. 

  1080. 			getid3_riff::RIFFCommentsParse($info_riff_wave['INFO'], $info_riff['comments']);
    1081. 

  1081. 		}
    1082. 

  1082. 

  1083. 		if (isset($info_riff_wave['INFO']) && is_array($info_riff_wave['INFO'])) {
    1084. 

  1084. 

  1085. 			foreach (array ('IARL' => 'archivallocation', 'IART' => 'artist', 'ICDS' => 'costumedesigner', 'ICMS' => 'commissionedby', 'ICMT' => 'comment', 'ICNT' => 'country', 'ICOP' => 'copyright', 'ICRD' => 'creationdate', 'IDIM' => 'dimensions', 'IDIT' => 'digitizationdate', 'IDPI' => 'resolution', 'IDST' => 'distributor', 'IEDT' => 'editor', 'IENG' => 'engineers', 'IFRM' => 'accountofparts', 'IGNR' => 'genre', 'IKEY' => 'keywords', 'ILGT' => 'lightness', 'ILNG' => 'language', 'IMED' => 'orignalmedium', 'IMUS' => 'composer', 'INAM' => 'title', 'IPDS' => 'productiondesigner', 'IPLT' => 'palette', 'IPRD' => 'product', 'IPRO' => 'producer', 'IPRT' => 'part', 'IRTD' => 'rating', 'ISBJ' => 'subject', 'ISFT' => 'software', 'ISGN' => 'secondarygenre', 'ISHP' => 'sharpness', 'ISRC' => 'sourcesupplier', 'ISRF' => 'digitizationsource', 'ISTD' => 'productionstudio', 'ISTR' => 'starring', 'ITC…
    1086.

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