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

https://bitbucket.org/holyfield/getid3
PHP | 2410 lines | 1442 code | 248 blank | 720 comment | 298 complexity | ea51b9b326e29ec6aeb499bc6d871067 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.riff.php                                 //
    11. 

  11. // module for analyzing RIFF files                             //
    12. 

  12. // multiple formats supported by this module:                  //
    13. 

  13. //    Wave, AVI, AIFF/AIFC, (MP3,AC3)/RIFF, Wavpack v3, 8SVX   //
    14. 

  14. // dependencies: module.audio.mp3.php                          //
    15. 

  15. //               module.audio.ac3.php (optional)               //
    16. 

  16. //               module.audio.dts.php (optional)               //
    17. 

  17. //                                                            ///
    18. 

  18. /////////////////////////////////////////////////////////////////
    19. 

  19. 

  20. 

  21. getid3_lib::IncludeDependency ( GETID3_INCLUDEPATH . 'module.audio.mp3.php', __FILE__, true );
    22. 

  22. 

  23. class getid3_riff extends getid3_handler {
    24. 

  24. 	
    25. 

  25. 	function Analyze() {
    26. 

  26. 		$info = &$this->getid3->info;
    27. 

  27. 		
    28. 

  28. 		// initialize these values to an empty array, otherwise they default to NULL
    29. 

  29. 		// and you can't append array values to a NULL value
    30. 

  30. 		$info ['riff'] = array (
    31. 

  31. 										'raw' => array () );
    32. 

  32. 		
    33. 

  33. 		// Shortcuts
    34. 

  34. 		$thisfile_riff = &$info ['riff'];
    35. 

  35. 		$thisfile_riff_raw = &$thisfile_riff ['raw'];
    36. 

  36. 		$thisfile_audio = &$info ['audio'];
    37. 

  37. 		$thisfile_video = &$info ['video'];
    38. 

  38. 		$thisfile_audio_dataformat = &$thisfile_audio ['dataformat'];
    39. 

  39. 		$thisfile_riff_audio = &$thisfile_riff ['audio'];
    40. 

  40. 		$thisfile_riff_video = &$thisfile_riff ['video'];
    41. 

  41. 		
    42. 

  42. 		$Original ['avdataoffset'] = $info ['avdataoffset'];
    43. 

  43. 		$Original ['avdataend'] = $info ['avdataend'];
    44. 

  44. 		
    45. 

  45. 		fseek ( $this->getid3->fp, $info ['avdataoffset'], SEEK_SET );
    46. 

  46. 		$RIFFheader = fread ( $this->getid3->fp, 12 );
    47. 

  47. 		$RIFFsubtype = substr ( $RIFFheader, 8, 4 );
    48. 

  48. 		switch (substr ( $RIFFheader, 0, 4 )) {
    49. 

  49. 			case 'FORM' :
    50. 

  50. 				$info ['fileformat'] = 'aiff';
    51. 

  51. 				$thisfile_riff ['header_size'] = $this->EitherEndian2Int ( substr ( $RIFFheader, 4, 4 ) );
    52. 

  52. 				$thisfile_riff [$RIFFsubtype] = $this->ParseRIFF ( $info ['avdataoffset'] + 12, $info ['avdataoffset'] + $thisfile_riff ['header_size'] );
    53. 

  53. 				break;
    54. 

  54. 			
    55. 

  55. 			case 'RIFF' : // AVI, WAV, etc
    56. 

  56. 			case 'SDSS' : // SDSS is identical to RIFF, just renamed. Used by SmartSound QuickTracks (www.smartsound.com)
    57. 

  57. 			case 'RMP3' : // RMP3 is identical to RIFF, just renamed. Used by [unknown program] when creating RIFF-MP3s
    58. 

  58. 				$info ['fileformat'] = 'riff';
    59. 

  59. 				$thisfile_riff ['header_size'] = $this->EitherEndian2Int ( substr ( $RIFFheader, 4, 4 ) );
    60. 

  60. 				if ($RIFFsubtype == 'RMP3') {
    61. 

  61. 					// RMP3 is identical to WAVE, just renamed. Used by [unknown program] when creating RIFF-MP3s
    62. 

  62. 					$RIFFsubtype = 'WAVE';
    63. 

  63. 				}
    64. 

  64. 				$thisfile_riff [$RIFFsubtype] = $this->ParseRIFF ( $info ['avdataoffset'] + 12, $info ['avdataoffset'] + $thisfile_riff ['header_size'] );
    65. 

  65. 				if (($info ['avdataend'] - $info ['filesize']) == 1) {
    66. 

  66. 					// LiteWave appears to incorrectly *not* pad actual output file
    67. 

  67. 					// to nearest WORD boundary so may appear to be short by one
    68. 

  68. 					// byte, in which case - skip warning
    69. 

  69. 					$info ['avdataend'] = $info ['filesize'];
    70. 

  70. 				}
    71. 

  71. 				
    72. 

  72. 				$nextRIFFoffset = $Original ['avdataoffset'] + 8 + $thisfile_riff ['header_size']; // 8 = "RIFF" + 32-bit offset
    73. 

  73. 				while ( $nextRIFFoffset < min ( $info ['filesize'], $info ['avdataend'] ) ) {
    74. 

  74. 					if (! getid3_lib::intValueSupported ( $nextRIFFoffset + 1024 )) {
    75. 

  75. 						$info ['error'] [] = 'AVI extends beyond ' . round ( PHP_INT_MAX / 1073741824 ) . 'GB and PHP filesystem functions cannot read that far, playtime is probably wrong';
    76. 

  76. 						$info ['warning'] [] = '[avdataend] value may be incorrect, multiple AVIX chunks may be present';
    77. 

  77. 						break;
    78. 

  78. 					} else {
    79. 

  79. 						fseek ( $this->getid3->fp, $nextRIFFoffset, SEEK_SET );
    80. 

  80. 						$nextRIFFheader = fread ( $this->getid3->fp, 12 );
    81. 

  81. 						if ($nextRIFFoffset == ($info ['avdataend'] - 1)) {
    82. 

  82. 							if (substr ( $nextRIFFheader, 0, 1 ) == "\x00") {
    83. 

  83. 								// RIFF padded to WORD boundary, we're actually already at the end
    84. 

  84. 								break;
    85. 

  85. 							}
    86. 

  86. 						}
    87. 

  87. 						$nextRIFFheaderID = substr ( $nextRIFFheader, 0, 4 );
    88. 

  88. 						$nextRIFFsize = $this->EitherEndian2Int ( substr ( $nextRIFFheader, 4, 4 ) );
    89. 

  89. 						$nextRIFFtype = substr ( $nextRIFFheader, 8, 4 );
    90. 

  90. 						$chunkdata = array ();
    91. 

  91. 						$chunkdata ['offset'] = $nextRIFFoffset + 8;
    92. 

  92. 						$chunkdata ['size'] = $nextRIFFsize;
    93. 

  93. 						$nextRIFFoffset = $chunkdata ['offset'] + $chunkdata ['size'];
    94. 

  94. 						switch ($nextRIFFheaderID) {
    95. 

  95. 							case 'RIFF' :
    96. 

  96. 								$info ['avdataend'] = $nextRIFFoffset;
    97. 

  97. 								if (! getid3_lib::intValueSupported ( $info ['avdataend'] )) {
    98. 

  98. 									$info ['error'] [] = 'AVI extends beyond ' . round ( PHP_INT_MAX / 1073741824 ) . 'GB and PHP filesystem functions cannot read that far, playtime is probably wrong';
    99. 

  99. 									$info ['warning'] [] = '[avdataend] value may be incorrect, multiple AVIX chunks may be present';
    100. 

  100. 								}
    101. 

  101. 								$chunkdata ['chunks'] = $this->ParseRIFF ( $chunkdata ['offset'] + 4, $chunkdata ['offset'] + $chunkdata ['size'] );
    102. 

  102. 								
    103. 

  103. 								if (! isset ( $thisfile_riff [$nextRIFFtype] )) {
    104. 

  104. 									$thisfile_riff [$nextRIFFtype] = array ();
    105. 

  105. 								}
    106. 

  106. 								$thisfile_riff [$nextRIFFtype] [] = $chunkdata;
    107. 

  107. 								break;
    108. 

  108. 							case 'JUNK' :
    109. 

  109. 								// ignore
    110. 

  110. 								$thisfile_riff [$nextRIFFheaderID] [] = $chunkdata;
    111. 

  111. 								break;
    112. 

  112. 							default :
    113. 

  113. 								if ($info ['filesize'] == ($chunkdata ['offset'] - 8 + 128)) {
    114. 

  114. 									$DIVXTAG = $nextRIFFheader . fread ( $this->getid3->fp, 128 - 12 );
    115. 

  115. 									if (substr ( $DIVXTAG, - 7 ) == 'DIVXTAG') {
    116. 

  116. 										// DIVXTAG is supposed to be inside an IDVX chunk in a LIST chunk, but some bad encoders just slap it on the end of a file
    117. 

  117. 										$info ['warning'] [] = 'Found wrongly-structured DIVXTAG at offset ' . (ftell ( $this->getid3->fp ) - 128 + 12) . ', parsing anyway';
    118. 

  118. 										$thisfile_riff ['DIVXTAG'] = $this->ParseDIVXTAG ( $DIVXTAG );
    119. 

  119. 										foreach ( $thisfile_riff ['DIVXTAG'] as $key => $value ) {
    120. 

  120. 											if ($value && ! preg_match ( '#_id$#', $key )) {
    121. 

  121. 												$thisfile_riff ['comments'] [$key] [] = $value;
    122. 

  122. 											}
    123. 

  123. 										}
    124. 

  124. 										break 2;
    125. 

  125. 									}
    126. 

  126. 								}
    127. 

  127. 								$info ['warning'] [] = 'expecting "RIFF" or "JUNK" at ' . $nextRIFFoffset . ', found ' . getid3_lib::PrintHexBytes ( substr ( $nextRIFFheader, 0, 4 ) ) . ' - skipping rest of file';
    128. 

  128. 								break 2;
    129. 

  129. 						}
    130. 

  130. 					}
    131. 

  131. 				}
    132. 

  132. 				if ($RIFFsubtype == 'WAVE') {
    133. 

  133. 					$thisfile_riff_WAVE = &$thisfile_riff ['WAVE'];
    134. 

  134. 				}
    135. 

  135. 				break;
    136. 

  136. 			
    137. 

  137. 			default :
    138. 

  138. 				$info ['error'] [] = 'Cannot parse RIFF (this is maybe not a RIFF / WAV / AVI file?) - expecting "FORM|RIFF|SDSS|RMP3" found "' . $RIFFsubtype . '" instead';
    139. 

  139. 				unset ( $info ['fileformat'] );
    140. 

  140. 				return false;
    141. 

  141. 				break;
    142. 

  142. 		}
    143. 

  143. 		
    144. 

  144. 		$streamindex = 0;
    145. 

  145. 		switch ($RIFFsubtype) {
    146. 

  146. 			case 'WAVE' :
    147. 

  147. 				if (empty ( $thisfile_audio ['bitrate_mode'] )) {
    148. 

  148. 					$thisfile_audio ['bitrate_mode'] = 'cbr';
    149. 

  149. 				}
    150. 

  150. 				if (empty ( $thisfile_audio_dataformat )) {
    151. 

  151. 					$thisfile_audio_dataformat = 'wav';
    152. 

  152. 				}
    153. 

  153. 				
    154. 

  154. 				if (isset ( $thisfile_riff_WAVE ['data'] [0] ['offset'] )) {
    155. 

  155. 					$info ['avdataoffset'] = $thisfile_riff_WAVE ['data'] [0] ['offset'] + 8;
    156. 

  156. 					$info ['avdataend'] = $info ['avdataoffset'] + $thisfile_riff_WAVE ['data'] [0] ['size'];
    157. 

  157. 				}
    158. 

  158. 				if (isset ( $thisfile_riff_WAVE ['fmt '] [0] ['data'] )) {
    159. 

  159. 					
    160. 

  160. 					$thisfile_riff_audio [$streamindex] = getid3_riff::RIFFparseWAVEFORMATex ( $thisfile_riff_WAVE ['fmt '] [0] ['data'] );
    161. 

  161. 					$thisfile_audio ['wformattag'] = $thisfile_riff_audio [$streamindex] ['raw'] ['wFormatTag'];
    162. 

  162. 					if (! isset ( $thisfile_riff_audio [$streamindex] ['bitrate'] ) || ($thisfile_riff_audio [$streamindex] ['bitrate'] == 0)) {
    163. 

  163. 						$info ['error'] [] = 'Corrupt RIFF file: bitrate_audio == zero';
    164. 

  164. 						return false;
    165. 

  165. 					}
    166. 

  166. 					$thisfile_riff_raw ['fmt '] = $thisfile_riff_audio [$streamindex] ['raw'];
    167. 

  167. 					unset ( $thisfile_riff_audio [$streamindex] ['raw'] );
    168. 

  168. 					$thisfile_audio ['streams'] [$streamindex] = $thisfile_riff_audio [$streamindex];
    169. 

  169. 					
    170. 

  170. 					$thisfile_audio = getid3_lib::array_merge_noclobber ( $thisfile_audio, $thisfile_riff_audio [$streamindex] );
    171. 

  171. 					if (substr ( $thisfile_audio ['codec'], 0, strlen ( 'unknown: 0x' ) ) == 'unknown: 0x') {
    172. 

  172. 						$info ['warning'] [] = 'Audio codec = ' . $thisfile_audio ['codec'];
    173. 

  173. 					}
    174. 

  174. 					$thisfile_audio ['bitrate'] = $thisfile_riff_audio [$streamindex] ['bitrate'];
    175. 

  175. 					
    176. 

  176. 					$info ['playtime_seconds'] = ( float ) ((($info ['avdataend'] - $info ['avdataoffset']) * 8) / $thisfile_audio ['bitrate']);
    177. 

  177. 					
    178. 

  178. 					$thisfile_audio ['lossless'] = false;
    179. 

  179. 					if (isset ( $thisfile_riff_WAVE ['data'] [0] ['offset'] ) && isset ( $thisfile_riff_raw ['fmt '] ['wFormatTag'] )) {
    180. 

  180. 						switch ($thisfile_riff_raw ['fmt '] ['wFormatTag']) {
    181. 

  181. 							
    182. 

  182. 							case 0x0001 : // PCM
    183. 

  183. 								$thisfile_audio ['lossless'] = true;
    184. 

  184. 								break;
    185. 

  185. 							
    186. 

  186. 							case 0x2000 : // AC-3
    187. 

  187. 								$thisfile_audio_dataformat = 'ac3';
    188. 

  188. 								break;
    189. 

  189. 							
    190. 

  190. 							default :
    191. 

  191. 								// do nothing
    192. 

  192. 								break;
    193. 

  193. 						
    194. 

  194. 						}
    195. 

  195. 					}
    196. 

  196. 					$thisfile_audio ['streams'] [$streamindex] ['wformattag'] = $thisfile_audio ['wformattag'];
    197. 

  197. 					$thisfile_audio ['streams'] [$streamindex] ['bitrate_mode'] = $thisfile_audio ['bitrate_mode'];
    198. 

  198. 					$thisfile_audio ['streams'] [$streamindex] ['lossless'] = $thisfile_audio ['lossless'];
    199. 

  199. 					$thisfile_audio ['streams'] [$streamindex] ['dataformat'] = $thisfile_audio_dataformat;
    200. 

  200. 				}
    201. 

  201. 				
    202. 

  202. 				if (isset ( $thisfile_riff_WAVE ['rgad'] [0] ['data'] )) {
    203. 

  203. 					
    204. 

  204. 					// shortcuts
    205. 

  205. 					$rgadData = &$thisfile_riff_WAVE ['rgad'] [0] ['data'];
    206. 

  206. 					$thisfile_riff_raw ['rgad'] = array (
    207. 

  207. 														'track' => array (), 
    208. 

  208. 														'album' => array () );
    209. 

  209. 					$thisfile_riff_raw_rgad = &$thisfile_riff_raw ['rgad'];
    210. 

  210. 					$thisfile_riff_raw_rgad_track = &$thisfile_riff_raw_rgad ['track'];
    211. 

  211. 					$thisfile_riff_raw_rgad_album = &$thisfile_riff_raw_rgad ['album'];
    212. 

  212. 					
    213. 

  213. 					$thisfile_riff_raw_rgad ['fPeakAmplitude'] = getid3_lib::LittleEndian2Float ( substr ( $rgadData, 0, 4 ) );
    214. 

  214. 					$thisfile_riff_raw_rgad ['nRadioRgAdjust'] = $this->EitherEndian2Int ( substr ( $rgadData, 4, 2 ) );
    215. 

  215. 					$thisfile_riff_raw_rgad ['nAudiophileRgAdjust'] = $this->EitherEndian2Int ( substr ( $rgadData, 6, 2 ) );
    216. 

  216. 					
    217. 

  217. 					$nRadioRgAdjustBitstring = str_pad ( getid3_lib::Dec2Bin ( $thisfile_riff_raw_rgad ['nRadioRgAdjust'] ), 16, '0', STR_PAD_LEFT );
    218. 

  218. 					$nAudiophileRgAdjustBitstring = str_pad ( getid3_lib::Dec2Bin ( $thisfile_riff_raw_rgad ['nAudiophileRgAdjust'] ), 16, '0', STR_PAD_LEFT );
    219. 

  219. 					$thisfile_riff_raw_rgad_track ['name'] = getid3_lib::Bin2Dec ( substr ( $nRadioRgAdjustBitstring, 0, 3 ) );
    220. 

  220. 					$thisfile_riff_raw_rgad_track ['originator'] = getid3_lib::Bin2Dec ( substr ( $nRadioRgAdjustBitstring, 3, 3 ) );
    221. 

  221. 					$thisfile_riff_raw_rgad_track ['signbit'] = getid3_lib::Bin2Dec ( substr ( $nRadioRgAdjustBitstring, 6, 1 ) );
    222. 

  222. 					$thisfile_riff_raw_rgad_track ['adjustment'] = getid3_lib::Bin2Dec ( substr ( $nRadioRgAdjustBitstring, 7, 9 ) );
    223. 

  223. 					$thisfile_riff_raw_rgad_album ['name'] = getid3_lib::Bin2Dec ( substr ( $nAudiophileRgAdjustBitstring, 0, 3 ) );
    224. 

  224. 					$thisfile_riff_raw_rgad_album ['originator'] = getid3_lib::Bin2Dec ( substr ( $nAudiophileRgAdjustBitstring, 3, 3 ) );
    225. 

  225. 					$thisfile_riff_raw_rgad_album ['signbit'] = getid3_lib::Bin2Dec ( substr ( $nAudiophileRgAdjustBitstring, 6, 1 ) );
    226. 

  226. 					$thisfile_riff_raw_rgad_album ['adjustment'] = getid3_lib::Bin2Dec ( substr ( $nAudiophileRgAdjustBitstring, 7, 9 ) );
    227. 

  227. 					
    228. 

  228. 					$thisfile_riff ['rgad'] ['peakamplitude'] = $thisfile_riff_raw_rgad ['fPeakAmplitude'];
    229. 

  229. 					if (($thisfile_riff_raw_rgad_track ['name'] != 0) && ($thisfile_riff_raw_rgad_track ['originator'] != 0)) {
    230. 

  230. 						$thisfile_riff ['rgad'] ['track'] ['name'] = getid3_lib::RGADnameLookup ( $thisfile_riff_raw_rgad_track ['name'] );
    231. 

  231. 						$thisfile_riff ['rgad'] ['track'] ['originator'] = getid3_lib::RGADoriginatorLookup ( $thisfile_riff_raw_rgad_track ['originator'] );
    232. 

  232. 						$thisfile_riff ['rgad'] ['track'] ['adjustment'] = getid3_lib::RGADadjustmentLookup ( $thisfile_riff_raw_rgad_track ['adjustment'], $thisfile_riff_raw_rgad_track ['signbit'] );
    233. 

  233. 					}
    234. 

  234. 					if (($thisfile_riff_raw_rgad_album ['name'] != 0) && ($thisfile_riff_raw_rgad_album ['originator'] != 0)) {
    235. 

  235. 						$thisfile_riff ['rgad'] ['album'] ['name'] = getid3_lib::RGADnameLookup ( $thisfile_riff_raw_rgad_album ['name'] );
    236. 

  236. 						$thisfile_riff ['rgad'] ['album'] ['originator'] = getid3_lib::RGADoriginatorLookup ( $thisfile_riff_raw_rgad_album ['originator'] );
    237. 

  237. 						$thisfile_riff ['rgad'] ['album'] ['adjustment'] = getid3_lib::RGADadjustmentLookup ( $thisfile_riff_raw_rgad_album ['adjustment'], $thisfile_riff_raw_rgad_album ['signbit'] );
    238. 

  238. 					}
    239. 

  239. 				}
    240. 

  240. 				
    241. 

  241. 				if (isset ( $thisfile_riff_WAVE ['fact'] [0] ['data'] )) {
    242. 

  242. 					$thisfile_riff_raw ['fact'] ['NumberOfSamples'] = $this->EitherEndian2Int ( substr ( $thisfile_riff_WAVE ['fact'] [0] ['data'], 0, 4 ) );
    243. 

  243. 					
    244. 

  244. 					// This should be a good way of calculating exact playtime,
    245. 

  245. 					// but some sample files have had incorrect number of samples,
    246. 

  246. 					// so cannot use this method
    247. 

  247. 					
    248. 

  248. 

  249. 					// if (!empty($thisfile_riff_raw['fmt ']['nSamplesPerSec'])) {
    250. 

  250. 					//     $info['playtime_seconds'] = (float) $thisfile_riff_raw['fact']['NumberOfSamples'] / $thisfile_riff_raw['fmt ']['nSamplesPerSec'];
    251. 

  251. 					// }
    252. 

  252. 				}
    253. 

  253. 				if (! empty ( $thisfile_riff_raw ['fmt '] ['nAvgBytesPerSec'] )) {
    254. 

  254. 					$thisfile_audio ['bitrate'] = getid3_lib::CastAsInt ( $thisfile_riff_raw ['fmt '] ['nAvgBytesPerSec'] * 8 );
    255. 

  255. 				}
    256. 

  256. 				
    257. 

  257. 				if (isset ( $thisfile_riff_WAVE ['bext'] [0] ['data'] )) {
    258. 

  258. 					// shortcut
    259. 

  259. 					$thisfile_riff_WAVE_bext_0 = &$thisfile_riff_WAVE ['bext'] [0];
    260. 

  260. 					
    261. 

  261. 					$thisfile_riff_WAVE_bext_0 ['title'] = trim ( substr ( $thisfile_riff_WAVE_bext_0 ['data'], 0, 256 ) );
    262. 

  262. 					$thisfile_riff_WAVE_bext_0 ['author'] = trim ( substr ( $thisfile_riff_WAVE_bext_0 ['data'], 256, 32 ) );
    263. 

  263. 					$thisfile_riff_WAVE_bext_0 ['reference'] = trim ( substr ( $thisfile_riff_WAVE_bext_0 ['data'], 288, 32 ) );
    264. 

  264. 					$thisfile_riff_WAVE_bext_0 ['origin_date'] = substr ( $thisfile_riff_WAVE_bext_0 ['data'], 320, 10 );
    265. 

  265. 					$thisfile_riff_WAVE_bext_0 ['origin_time'] = substr ( $thisfile_riff_WAVE_bext_0 ['data'], 330, 8 );
    266. 

  266. 					$thisfile_riff_WAVE_bext_0 ['time_reference'] = getid3_lib::LittleEndian2Int ( substr ( $thisfile_riff_WAVE_bext_0 ['data'], 338, 8 ) );
    267. 

  267. 					$thisfile_riff_WAVE_bext_0 ['bwf_version'] = getid3_lib::LittleEndian2Int ( substr ( $thisfile_riff_WAVE_bext_0 ['data'], 346, 1 ) );
    268. 

  268. 					$thisfile_riff_WAVE_bext_0 ['reserved'] = substr ( $thisfile_riff_WAVE_bext_0 ['data'], 347, 254 );
    269. 

  269. 					$thisfile_riff_WAVE_bext_0 ['coding_history'] = explode ( "\r\n", trim ( substr ( $thisfile_riff_WAVE_bext_0 ['data'], 601 ) ) );
    270. 

  270. 					if (preg_match ( '#^([0-9]{4}).([0-9]{2}).([0-9]{2})$#', $thisfile_riff_WAVE_bext_0 ['origin_date'], $matches_bext_date )) {
    271. 

  271. 						if (preg_match ( '#^([0-9]{2}).([0-9]{2}).([0-9]{2})$#', $thisfile_riff_WAVE_bext_0 ['origin_time'], $matches_bext_time )) {
    272. 

  272. 							list ( $dummy, $bext_timestamp ['year'], $bext_timestamp ['month'], $bext_timestamp ['day'] ) = $matches_bext_date;
    273. 

  273. 							list ( $dummy, $bext_timestamp ['hour'], $bext_timestamp ['minute'], $bext_timestamp ['second'] ) = $matches_bext_time;
    274. 

  274. 							$thisfile_riff_WAVE_bext_0 ['origin_date_unix'] = gmmktime ( $bext_timestamp ['hour'], $bext_timestamp ['minute'], $bext_timestamp ['second'], $bext_timestamp ['month'], $bext_timestamp ['day'], $bext_timestamp ['year'] );
    275. 

  275. 						} else {
    276. 

  276. 							$info ['warning'] [] = 'RIFF.WAVE.BEXT.origin_time is invalid';
    277. 

  277. 						}
    278. 

  278. 					} else {
    279. 

  279. 						$info ['warning'] [] = 'RIFF.WAVE.BEXT.origin_date is invalid';
    280. 

  280. 					}
    281. 

  281. 					$thisfile_riff ['comments'] ['author'] [] = $thisfile_riff_WAVE_bext_0 ['author'];
    282. 

  282. 					$thisfile_riff ['comments'] ['title'] [] = $thisfile_riff_WAVE_bext_0 ['title'];
    283. 

  283. 				}
    284. 

  284. 				
    285. 

  285. 				if (isset ( $thisfile_riff_WAVE ['MEXT'] [0] ['data'] )) {
    286. 

  286. 					// shortcut
    287. 

  287. 					$thisfile_riff_WAVE_MEXT_0 = &$thisfile_riff_WAVE ['MEXT'] [0];
    288. 

  288. 					
    289. 

  289. 					$thisfile_riff_WAVE_MEXT_0 ['raw'] ['sound_information'] = getid3_lib::LittleEndian2Int ( substr ( $thisfile_riff_WAVE_MEXT_0 ['data'], 0, 2 ) );
    290. 

  290. 					$thisfile_riff_WAVE_MEXT_0 ['flags'] ['homogenous'] = ( bool ) ($thisfile_riff_WAVE_MEXT_0 ['raw'] ['sound_information'] & 0x0001);
    291. 

  291. 					if ($thisfile_riff_WAVE_MEXT_0 ['flags'] ['homogenous']) {
    292. 

  292. 						$thisfile_riff_WAVE_MEXT_0 ['flags'] ['padding'] = ($thisfile_riff_WAVE_MEXT_0 ['raw'] ['sound_information'] & 0x0002) ? false : true;
    293. 

  293. 						$thisfile_riff_WAVE_MEXT_0 ['flags'] ['22_or_44'] = ( bool ) ($thisfile_riff_WAVE_MEXT_0 ['raw'] ['sound_information'] & 0x0004);
    294. 

  294. 						$thisfile_riff_WAVE_MEXT_0 ['flags'] ['free_format'] = ( bool ) ($thisfile_riff_WAVE_MEXT_0 ['raw'] ['sound_information'] & 0x0008);
    295. 

  295. 						
    296. 

  296. 						$thisfile_riff_WAVE_MEXT_0 ['nominal_frame_size'] = getid3_lib::LittleEndian2Int ( substr ( $thisfile_riff_WAVE_MEXT_0 ['data'], 2, 2 ) );
    297. 

  297. 					}
    298. 

  298. 					$thisfile_riff_WAVE_MEXT_0 ['anciliary_data_length'] = getid3_lib::LittleEndian2Int ( substr ( $thisfile_riff_WAVE_MEXT_0 ['data'], 6, 2 ) );
    299. 

  299. 					$thisfile_riff_WAVE_MEXT_0 ['raw'] ['anciliary_data_def'] = getid3_lib::LittleEndian2Int ( substr ( $thisfile_riff_WAVE_MEXT_0 ['data'], 8, 2 ) );
    300. 

  300. 					$thisfile_riff_WAVE_MEXT_0 ['flags'] ['anciliary_data_left'] = ( bool ) ($thisfile_riff_WAVE_MEXT_0 ['raw'] ['anciliary_data_def'] & 0x0001);
    301. 

  301. 					$thisfile_riff_WAVE_MEXT_0 ['flags'] ['anciliary_data_free'] = ( bool ) ($thisfile_riff_WAVE_MEXT_0 ['raw'] ['anciliary_data_def'] & 0x0002);
    302. 

  302. 					$thisfile_riff_WAVE_MEXT_0 ['flags'] ['anciliary_data_right'] = ( bool ) ($thisfile_riff_WAVE_MEXT_0 ['raw'] ['anciliary_data_def'] & 0x0004);
    303. 

  303. 				}
    304. 

  304. 				
    305. 

  305. 				if (isset ( $thisfile_riff_WAVE ['cart'] [0] ['data'] )) {
    306. 

  306. 					// shortcut
    307. 

  307. 					$thisfile_riff_WAVE_cart_0 = &$thisfile_riff_WAVE ['cart'] [0];
    308. 

  308. 					
    309. 

  309. 					$thisfile_riff_WAVE_cart_0 ['version'] = substr ( $thisfile_riff_WAVE_cart_0 ['data'], 0, 4 );
    310. 

  310. 					$thisfile_riff_WAVE_cart_0 ['title'] = trim ( substr ( $thisfile_riff_WAVE_cart_0 ['data'], 4, 64 ) );
    311. 

  311. 					$thisfile_riff_WAVE_cart_0 ['artist'] = trim ( substr ( $thisfile_riff_WAVE_cart_0 ['data'], 68, 64 ) );
    312. 

  312. 					$thisfile_riff_WAVE_cart_0 ['cut_id'] = trim ( substr ( $thisfile_riff_WAVE_cart_0 ['data'], 132, 64 ) );
    313. 

  313. 					$thisfile_riff_WAVE_cart_0 ['client_id'] = trim ( substr ( $thisfile_riff_WAVE_cart_0 ['data'], 196, 64 ) );
    314. 

  314. 					$thisfile_riff_WAVE_cart_0 ['category'] = trim ( substr ( $thisfile_riff_WAVE_cart_0 ['data'], 260, 64 ) );
    315. 

  315. 					$thisfile_riff_WAVE_cart_0 ['classification'] = trim ( substr ( $thisfile_riff_WAVE_cart_0 ['data'], 324, 64 ) );
    316. 

  316. 					$thisfile_riff_WAVE_cart_0 ['out_cue'] = trim ( substr ( $thisfile_riff_WAVE_cart_0 ['data'], 388, 64 ) );
    317. 

  317. 					$thisfile_riff_WAVE_cart_0 ['start_date'] = trim ( substr ( $thisfile_riff_WAVE_cart_0 ['data'], 452, 10 ) );
    318. 

  318. 					$thisfile_riff_WAVE_cart_0 ['start_time'] = trim ( substr ( $thisfile_riff_WAVE_cart_0 ['data'], 462, 8 ) );
    319. 

  319. 					$thisfile_riff_WAVE_cart_0 ['end_date'] = trim ( substr ( $thisfile_riff_WAVE_cart_0 ['data'], 470, 10 ) );
    320. 

  320. 					$thisfile_riff_WAVE_cart_0 ['end_time'] = trim ( substr ( $thisfile_riff_WAVE_cart_0 ['data'], 480, 8 ) );
    321. 

  321. 					$thisfile_riff_WAVE_cart_0 ['producer_app_id'] = trim ( substr ( $thisfile_riff_WAVE_cart_0 ['data'], 488, 64 ) );
    322. 

  322. 					$thisfile_riff_WAVE_cart_0 ['producer_app_version'] = trim ( substr ( $thisfile_riff_WAVE_cart_0 ['data'], 552, 64 ) );
    323. 

  323. 					$thisfile_riff_WAVE_cart_0 ['user_defined_text'] = trim ( substr ( $thisfile_riff_WAVE_cart_0 ['data'], 616, 64 ) );
    324. 

  324. 					$thisfile_riff_WAVE_cart_0 ['zero_db_reference'] = getid3_lib::LittleEndian2Int ( substr ( $thisfile_riff_WAVE_cart_0 ['data'], 680, 4 ), true );
    325. 

  325. 					for($i = 0; $i < 8; $i ++) {
    326. 

  326. 						$thisfile_riff_WAVE_cart_0 ['post_time'] [$i] ['usage_fourcc'] = substr ( $thisfile_riff_WAVE_cart_0 ['data'], 684 + ($i * 8), 4 );
    327. 

  327. 						$thisfile_riff_WAVE_cart_0 ['post_time'] [$i] ['timer_value'] = getid3_lib::LittleEndian2Int ( substr ( $thisfile_riff_WAVE_cart_0 ['data'], 684 + ($i * 8) + 4, 4 ) );
    328. 

  328. 					}
    329. 

  329. 					$thisfile_riff_WAVE_cart_0 ['url'] = trim ( substr ( $thisfile_riff_WAVE_cart_0 ['data'], 748, 1024 ) );
    330. 

  330. 					$thisfile_riff_WAVE_cart_0 ['tag_text'] = explode ( "\r\n", trim ( substr ( $thisfile_riff_WAVE_cart_0 ['data'], 1772 ) ) );
    331. 

  331. 					
    332. 

  332. 					$thisfile_riff ['comments'] ['artist'] [] = $thisfile_riff_WAVE_cart_0 ['artist'];
    333. 

  333. 					$thisfile_riff ['comments'] ['title'] [] = $thisfile_riff_WAVE_cart_0 ['title'];
    334. 

  334. 				}
    335. 

  335. 				
    336. 

  336. 				if (isset ( $thisfile_riff_WAVE ['SNDM'] [0] ['data'] )) {
    337. 

  337. 					// SoundMiner metadata
    338. 

  338. 					
    339. 

  339. 

  340. 					// shortcuts
    341. 

  341. 					$thisfile_riff_WAVE_SNDM_0 = &$thisfile_riff_WAVE ['SNDM'] [0];
    342. 

  342. 					$thisfile_riff_WAVE_SNDM_0_data = &$thisfile_riff_WAVE_SNDM_0 ['data'];
    343. 

  343. 					$SNDM_startoffset = 0;
    344. 

  344. 					$SNDM_endoffset = $thisfile_riff_WAVE_SNDM_0 ['size'];
    345. 

  345. 					
    346. 

  346. 					while ( $SNDM_startoffset < $SNDM_endoffset ) {
    347. 

  347. 						$SNDM_thisTagOffset = 0;
    348. 

  348. 						$SNDM_thisTagSize = getid3_lib::BigEndian2Int ( substr ( $thisfile_riff_WAVE_SNDM_0_data, $SNDM_startoffset + $SNDM_thisTagOffset, 4 ) );
    349. 

  349. 						$SNDM_thisTagOffset += 4;
    350. 

  350. 						$SNDM_thisTagKey = substr ( $thisfile_riff_WAVE_SNDM_0_data, $SNDM_startoffset + $SNDM_thisTagOffset, 4 );
    351. 

  351. 						$SNDM_thisTagOffset += 4;
    352. 

  352. 						$SNDM_thisTagDataSize = getid3_lib::BigEndian2Int ( substr ( $thisfile_riff_WAVE_SNDM_0_data, $SNDM_startoffset + $SNDM_thisTagOffset, 2 ) );
    353. 

  353. 						$SNDM_thisTagOffset += 2;
    354. 

  354. 						$SNDM_thisTagDataFlags = getid3_lib::BigEndian2Int ( substr ( $thisfile_riff_WAVE_SNDM_0_data, $SNDM_startoffset + $SNDM_thisTagOffset, 2 ) );
    355. 

  355. 						$SNDM_thisTagOffset += 2;
    356. 

  356. 						$SNDM_thisTagDataText = substr ( $thisfile_riff_WAVE_SNDM_0_data, $SNDM_startoffset + $SNDM_thisTagOffset, $SNDM_thisTagDataSize );
    357. 

  357. 						$SNDM_thisTagOffset += $SNDM_thisTagDataSize;
    358. 

  358. 						
    359. 

  359. 						if ($SNDM_thisTagSize != (4 + 4 + 2 + 2 + $SNDM_thisTagDataSize)) {
    360. 

  360. 							$info ['warning'] [] = 'RIFF.WAVE.SNDM.data contains tag not expected length (expected: ' . $SNDM_thisTagSize . ', found: ' . (4 + 4 + 2 + 2 + $SNDM_thisTagDataSize) . ') at offset ' . $SNDM_startoffset . ' (file offset ' . ($thisfile_riff_WAVE_SNDM_0 ['offset'] + $SNDM_startoffset) . ')';
    361. 

  361. 							break;
    362. 

  362. 						} elseif ($SNDM_thisTagSize <= 0) {
    363. 

  363. 							$info ['warning'] [] = 'RIFF.WAVE.SNDM.data contains zero-size tag at offset ' . $SNDM_startoffset . ' (file offset ' . ($thisfile_riff_WAVE_SNDM_0 ['offset'] + $SNDM_startoffset) . ')';
    364. 

  364. 							break;
    365. 

  365. 						}
    366. 

  366. 						$SNDM_startoffset += $SNDM_thisTagSize;
    367. 

  367. 						
    368. 

  368. 						$thisfile_riff_WAVE_SNDM_0 ['parsed_raw'] [$SNDM_thisTagKey] = $SNDM_thisTagDataText;
    369. 

  369. 						if (($parsedkey = $this->RIFFwaveSNDMtagLookup ( $SNDM_thisTagKey )) != false) {
    370. 

  370. 							$thisfile_riff_WAVE_SNDM_0 ['parsed'] [$parsedkey] = $SNDM_thisTagDataText;
    371. 

  371. 						} else {
    372. 

  372. 							$info ['warning'] [] = 'RIFF.WAVE.SNDM contains unknown tag "' . $SNDM_thisTagKey . '" at offset ' . $SNDM_startoffset . ' (file offset ' . ($thisfile_riff_WAVE_SNDM_0 ['offset'] + $SNDM_startoffset) . ')';
    373. 

  373. 						}
    374. 

  374. 					}
    375. 

  375. 					
    376. 

  376. 					$tagmapping = array (
    377. 

  377. 										'tracktitle' => 'title', 
    378. 

  378. 										'category' => 'genre', 
    379. 

  379. 										'cdtitle' => 'album', 
    380. 

  380. 										'tracktitle' => 'title' );
    381. 

  381. 					foreach ( $tagmapping as $fromkey => $tokey ) {
    382. 

  382. 						if (isset ( $thisfile_riff_WAVE_SNDM_0 ['parsed'] [$fromkey] )) {
    383. 

  383. 							$thisfile_riff ['comments'] [$tokey] [] = $thisfile_riff_WAVE_SNDM_0 ['parsed'] [$fromkey];
    384. 

  384. 						}
    385. 

  385. 					}
    386. 

  386. 				}
    387. 

  387. 				
    388. 

  388. 				if (isset ( $thisfile_riff_WAVE ['iXML'] [0] ['data'] )) {
    389. 

  389. 					// requires functions simplexml_load_string and get_object_vars
    390. 

  390. 					if (($parsedXML = getid3_lib::XML2array ( $thisfile_riff_WAVE ['iXML'] [0] ['data'] )) != false) {
    391. 

  391. 						$thisfile_riff_WAVE ['iXML'] [0] ['parsed'] = $parsedXML;
    392. 

  392. 						if (isset ( $parsedXML ['SPEED'] ['MASTER_SPEED'] )) {
    393. 

  393. 							@list ( $numerator, $denominator ) = explode ( '/', $parsedXML ['SPEED'] ['MASTER_SPEED'] );
    394. 

  394. 							$thisfile_riff_WAVE ['iXML'] [0] ['master_speed'] = $numerator / ($denominator ? $denominator : 1000);
    395. 

  395. 						}
    396. 

  396. 						if (isset ( $parsedXML ['SPEED'] ['TIMECODE_RATE'] )) {
    397. 

  397. 							@list ( $numerator, $denominator ) = explode ( '/', $parsedXML ['SPEED'] ['TIMECODE_RATE'] );
    398. 

  398. 							$thisfile_riff_WAVE ['iXML'] [0] ['timecode_rate'] = $numerator / ($denominator ? $denominator : 1000);
    399. 

  399. 						}
    400. 

  400. 						if (isset ( $parsedXML ['SPEED'] ['TIMESTAMP_SAMPLES_SINCE_MIDNIGHT_LO'] ) && ! empty ( $parsedXML ['SPEED'] ['TIMESTAMP_SAMPLE_RATE'] ) && ! empty ( $thisfile_riff_WAVE ['iXML'] [0] ['timecode_rate'] )) {
    401. 

  401. 							$samples_since_midnight = floatval ( ltrim ( $parsedXML ['SPEED'] ['TIMESTAMP_SAMPLES_SINCE_MIDNIGHT_HI'] . $parsedXML ['SPEED'] ['TIMESTAMP_SAMPLES_SINCE_MIDNIGHT_LO'], '0' ) );
    402. 

  402. 							$thisfile_riff_WAVE ['iXML'] [0] ['timecode_seconds'] = $samples_since_midnight / $parsedXML ['SPEED'] ['TIMESTAMP_SAMPLE_RATE'];
    403. 

  403. 							$h = floor ( $thisfile_riff_WAVE ['iXML'] [0] ['timecode_seconds'] / 3600 );
    404. 

  404. 							$m = floor ( ($thisfile_riff_WAVE ['iXML'] [0] ['timecode_seconds'] - ($h * 3600)) / 60 );
    405. 

  405. 							$s = floor ( $thisfile_riff_WAVE ['iXML'] [0] ['timecode_seconds'] - ($h * 3600) - ($m * 60) );
    406. 

  406. 							$f = ($thisfile_riff_WAVE ['iXML'] [0] ['timecode_seconds'] - ($h * 3600) - ($m * 60) - $s) * $thisfile_riff_WAVE ['iXML'] [0] ['timecode_rate'];
    407. 

  407. 							$thisfile_riff_WAVE ['iXML'] [0] ['timecode_string'] = sprintf ( '%02d:%02d:%02d:%05.2f', $h, $m, $s, $f );
    408. 

  408. 							$thisfile_riff_WAVE ['iXML'] [0] ['timecode_string_round'] = sprintf ( '%02d:%02d:%02d:%02d', $h, $m, $s, round ( $f ) );
    409. 

  409. 						}
    410. 

  410. 						unset ( $parsedXML );
    411. 

  411. 					}
    412. 

  412. 				}
    413. 

  413. 				
    414. 

  414. 				if (! isset ( $thisfile_audio ['bitrate'] ) && isset ( $thisfile_riff_audio [$streamindex] ['bitrate'] )) {
    415. 

  415. 					$thisfile_audio ['bitrate'] = $thisfile_riff_audio [$streamindex] ['bitrate'];
    416. 

  416. 					$info ['playtime_seconds'] = ( float ) ((($info ['avdataend'] - $info ['avdataoffset']) * 8) / $thisfile_audio ['bitrate']);
    417. 

  417. 				}
    418. 

  418. 				
    419. 

  419. 				if (! empty ( $info ['wavpack'] )) {
    420. 

  420. 					$thisfile_audio_dataformat = 'wavpack';
    421. 

  421. 					$thisfile_audio ['bitrate_mode'] = 'vbr';
    422. 

  422. 					$thisfile_audio ['encoder'] = 'WavPack v' . $info ['wavpack'] ['version'];
    423. 

  423. 					
    424. 

  424. 					// Reset to the way it was - RIFF parsing will have messed this up
    425. 

  425. 					$info ['avdataend'] = $Original ['avdataend'];
    426. 

  426. 					$thisfile_audio ['bitrate'] = (($info ['avdataend'] - $info ['avdataoffset']) * 8) / $info ['playtime_seconds'];
    427. 

  427. 					
    428. 

  428. 					fseek ( $this->getid3->fp, $info ['avdataoffset'] - 44, SEEK_SET );
    429. 

  429. 					$RIFFdata = fread ( $this->getid3->fp, 44 );
    430. 

  430. 					$OrignalRIFFheaderSize = getid3_lib::LittleEndian2Int ( substr ( $RIFFdata, 4, 4 ) ) + 8;
    431. 

  431. 					$OrignalRIFFdataSize = getid3_lib::LittleEndian2Int ( substr ( $RIFFdata, 40, 4 ) ) + 44;
    432. 

  432. 					
    433. 

  433. 					if ($OrignalRIFFheaderSize > $OrignalRIFFdataSize) {
    434. 

  434. 						$info ['avdataend'] -= ($OrignalRIFFheaderSize - $OrignalRIFFdataSize);
    435. 

  435. 						fseek ( $this->getid3->fp, $info ['avdataend'], SEEK_SET );
    436. 

  436. 						$RIFFdata .= fread ( $this->getid3->fp, $OrignalRIFFheaderSize - $OrignalRIFFdataSize );
    437. 

  437. 					}
    438. 

  438. 					
    439. 

  439. 					// move the data chunk after all other chunks (if any)
    440. 

  440. 					// so that the RIFF parser doesn't see EOF when trying
    441. 

  441. 					// to skip over the data chunk
    442. 

  442. 					$RIFFdata = substr ( $RIFFdata, 0, 36 ) . substr ( $RIFFdata, 44 ) . substr ( $RIFFdata, 36, 8 );
    443. 

  443. 					$getid3_riff = new getid3_riff ( $this->getid3 );
    444. 

  444. 					$getid3_riff->ParseRIFFdata ( $RIFFdata );
    445. 

  445. 					unset ( $getid3_riff );
    446. 

  446. 				}
    447. 

  447. 				
    448. 

  448. 				if (isset ( $thisfile_riff_raw ['fmt '] ['wFormatTag'] )) {
    449. 

  449. 					switch ($thisfile_riff_raw ['fmt '] ['wFormatTag']) {
    450. 

  450. 						case 0x0001 : // PCM
    451. 

  451. 							if (! empty ( $info ['ac3'] )) {
    452. 

  452. 								// Dolby Digital WAV files masquerade as PCM-WAV, but they're not
    453. 

  453. 								$thisfile_audio ['wformattag'] = 0x2000;
    454. 

  454. 								$thisfile_audio ['codec'] = $this->RIFFwFormatTagLookup ( $thisfile_audio ['wformattag'] );
    455. 

  455. 								$thisfile_audio ['lossless'] = false;
    456. 

  456. 								$thisfile_audio ['bitrate'] = $info ['ac3'] ['bitrate'];
    457. 

  457. 								$thisfile_audio ['sample_rate'] = $info ['ac3'] ['sample_rate'];
    458. 

  458. 							}
    459. 

  459. 							break;
    460. 

  460. 						case 0x08AE : // ClearJump LiteWave
    461. 

  461. 							$thisfile_audio ['bitrate_mode'] = 'vbr';
    462. 

  462. 							$thisfile_audio_dataformat = 'litewave';
    463. 

  463. 							
    464. 

  464. 							//typedef struct tagSLwFormat {
    465. 

  465. 							//  WORD    m_wCompFormat;     // low byte defines compression method, high byte is compression flags
    466. 

  466. 							//  DWORD   m_dwScale;         // scale factor for lossy compression
    467. 

  467. 							//  DWORD   m_dwBlockSize;     // number of samples in encoded blocks
    468. 

  468. 							//  WORD    m_wQuality;        // alias for the scale factor
    469. 

  469. 							//  WORD    m_wMarkDistance;   // distance between marks in bytes
    470. 

  470. 							//  WORD    m_wReserved;
    471. 

  471. 							//
    472. 

  472. 							//  //following paramters are ignored if CF_FILESRC is not set
    473. 

  473. 							//  DWORD   m_dwOrgSize;       // original file size in bytes
    474. 

  474. 							//  WORD    m_bFactExists;     // indicates if 'fact' chunk exists in the original file
    475. 

  475. 							//  DWORD   m_dwRiffChunkSize; // riff chunk size in the original file
    476. 

  476. 							//
    477. 

  477. 							//  PCMWAVEFORMAT m_OrgWf;     // original wave format
    478. 

  478. 							// }SLwFormat, *PSLwFormat;
    479. 

  479. 							
    480. 

  480. 

  481. 							// shortcut
    482. 

  482. 							$thisfile_riff ['litewave'] ['raw'] = array ();
    483. 

  483. 							$thisfile_riff_litewave = &$thisfile_riff ['litewave'];
    484. 

  484. 							$thisfile_riff_litewave_raw = &$thisfile_riff_litewave ['raw'];
    485. 

  485. 							
    486. 

  486. 							$thisfile_riff_litewave_raw ['compression_method'] = getid3_lib::LittleEndian2Int ( substr ( $thisfile_riff_WAVE ['fmt '] [0] ['data'], 18, 1 ) );
    487. 

  487. 							$thisfile_riff_litewave_raw ['compression_flags'] = getid3_lib::LittleEndian2Int ( substr ( $thisfile_riff_WAVE ['fmt '] [0] ['data'], 19, 1 ) );
    488. 

  488. 							$thisfile_riff_litewave_raw ['m_dwScale'] = getid3_lib::LittleEndian2Int ( substr ( $thisfile_riff_WAVE ['fmt '] [0] ['data'], 20, 4 ) );
    489. 

  489. 							$thisfile_riff_litewave_raw ['m_dwBlockSize'] = getid3_lib::LittleEndian2Int ( substr ( $thisfile_riff_WAVE ['fmt '] [0] ['data'], 24, 4 ) );
    490. 

  490. 							$thisfile_riff_litewave_raw ['m_wQuality'] = getid3_lib::LittleEndian2Int ( substr ( $thisfile_riff_WAVE ['fmt '] [0] ['data'], 28, 2 ) );
    491. 

  491. 							$thisfile_riff_litewave_raw ['m_wMarkDistance'] = getid3_lib::LittleEndian2Int ( substr ( $thisfile_riff_WAVE ['fmt '] [0] ['data'], 30, 2 ) );
    492. 

  492. 							$thisfile_riff_litewave_raw ['m_wReserved'] = getid3_lib::LittleEndian2Int ( substr ( $thisfile_riff_WAVE ['fmt '] [0] ['data'], 32, 2 ) );
    493. 

  493. 							$thisfile_riff_litewave_raw ['m_dwOrgSize'] = getid3_lib::LittleEndian2Int ( substr ( $thisfile_riff_WAVE ['fmt '] [0] ['data'], 34, 4 ) );
    494. 

  494. 							$thisfile_riff_litewave_raw ['m_bFactExists'] = getid3_lib::LittleEndian2Int ( substr ( $thisfile_riff_WAVE ['fmt '] [0] ['data'], 38, 2 ) );
    495. 

  495. 							$thisfile_riff_litewave_raw ['m_dwRiffChunkSize'] = getid3_lib::LittleEndian2Int ( substr ( $thisfile_riff_WAVE ['fmt '] [0] ['data'], 40, 4 ) );
    496. 

  496. 							
    497. 

  497. 							//$thisfile_riff_litewave['quality_factor'] = intval(round((2000 - $thisfile_riff_litewave_raw['m_dwScale']) / 20));
    498. 

  498. 							$thisfile_riff_litewave ['quality_factor'] = $thisfile_riff_litewave_raw ['m_wQuality'];
    499. 

  499. 							
    500. 

  500. 							$thisfile_riff_litewave ['flags'] ['raw_source'] = ($thisfile_riff_litewave_raw ['compression_flags'] & 0x01) ? false : true;
    501. 

  501. 							$thisfile_riff_litewave ['flags'] ['vbr_blocksize'] = ($thisfile_riff_litewave_raw ['compression_flags'] & 0x02) ? false : true;
    502. 

  502. 							$thisfile_riff_litewave ['flags'] ['seekpoints'] = ( bool ) ($thisfile_riff_litewave_raw ['compression_flags'] & 0x04);
    503. 

  503. 							
    504. 

  504. 							$thisfile_audio ['lossless'] = (($thisfile_riff_litewave_raw ['m_wQuality'] == 100) ? true : false);
    505. 

  505. 							$thisfile_audio ['encoder_options'] = '-q' . $thisfile_riff_litewave ['quality_factor'];
    506. 

  506. 							break;
    507. 

  507. 						
    508. 

  508. 						default :
    509. 

  509. 							break;
    510. 

  510. 					}
    511. 

  511. 				}
    512. 

  512. 				if ($info ['avdataend'] > $info ['filesize']) {
    513. 

  513. 					switch (! empty ( $thisfile_audio_dataformat ) ? $thisfile_audio_dataformat : '') {
    514. 

  514. 						case 'wavpack' : // WavPack
    515. 

  515. 						case 'lpac' : // LPAC
    516. 

  516. 						case 'ofr' : // OptimFROG
    517. 

  517. 						case 'ofs' : // OptimFROG DualStream
    518. 

  518. 							// lossless compressed audio formats that keep original RIFF headers - skip warning
    519. 

  519. 							break;
    520. 

  520. 						
    521. 

  521. 						case 'litewave' :
    522. 

  522. 							if (($info ['avdataend'] - $info ['filesize']) == 1) {
    523. 

  523. 								// LiteWave appears to incorrectly *not* pad actual output file
    524. 

  524. 								// to nearest WORD boundary so may appear to be short by one
    525. 

  525. 								// byte, in which case - skip warning
    526. 

  526. 							} else {
    527. 

  527. 								// Short by more than one byte, throw warning
    528. 

  528. 								$info ['warning'] [] = 'Probably truncated file - expecting ' . $thisfile_riff [$RIFFsubtype] ['data'] [0] ['size'] . ' bytes of data, only found ' . ($info ['filesize'] - $info ['avdataoffset']) . ' (short by ' . ($thisfile_riff [$RIFFsubtype] ['data'] [0] ['size'] - ($info ['filesize'] - $info ['avdataoffset'])) . ' bytes)';
    529. 

  529. 								$info ['avdataend'] = $info ['filesize'];
    530. 

  530. 							}
    531. 

  531. 							break;
    532. 

  532. 						
    533. 

  533. 						default :
    534. 

  534. 							if ((($info ['avdataend'] - $info ['filesize']) == 1) && (($thisfile_riff [$RIFFsubtype] ['data'] [0] ['size'] % 2) == 0) && ((($info ['filesize'] - $info ['avdataoffset']) % 2) == 1)) {
    535. 

  535. 								// output file appears to be incorrectly *not* padded to nearest WORD boundary
    536. 

  536. 								// Output less severe warning
    537. 

  537. 								$info ['warning'] [] = 'File should probably be padded to nearest WORD boundary, but it is not (expecting ' . $thisfile_riff [$RIFFsubtype] ['data'] [0] ['size'] . ' bytes of data, only found ' . ($info ['filesize'] - $info ['avdataoffset']) . ' therefore short by ' . ($thisfile_riff [$RIFFsubtype] ['data'] [0] ['size'] - ($info ['filesize'] - $info ['avdataoffset'])) . ' bytes)';
    538. 

  538. 								$info ['avdataend'] = $info ['filesize'];
    539. 

  539. 							} else {
    540. 

  540. 								// Short by more than one byte, throw warning
    541. 

  541. 								$info ['warning'] [] = 'Probably truncated file - expecting ' . $thisfile_riff [$RIFFsubtype] ['data'] [0] ['size'] . ' bytes of data, only found ' . ($info ['filesize'] - $info ['avdataoffset']) . ' (short by ' . ($thisfile_riff [$RIFFsubtype] ['data'] [0] ['size'] - ($info ['filesize'] - $info ['avdataoffset'])) . ' bytes)';
    542. 

  542. 								$info ['avdataend'] = $info ['filesize'];
    543. 

  543. 							}
    544. 

  544. 							break;
    545. 

  545. 					}
    546. 

  546. 				}
    547. 

  547. 				if (! empty ( $info ['mpeg'] ['audio'] ['LAME'] ['audio_bytes'] )) {
    548. 

  548. 					if ((($info ['avdataend'] - $info ['avdataoffset']) - $info ['mpeg'] ['audio'] ['LAME'] ['audio_bytes']) == 1) {
    549. 

  549. 						$info ['avdataend'] --;
    550. 

  550. 						$info ['warning'] [] = 'Extra null byte at end of MP3 data assumed to be RIFF padding and therefore ignored';
    551. 

  551. 					}
    552. 

  552. 				}
    553. 

  553. 				if (isset ( $thisfile_audio_dataformat ) && ($thisfile_audio_dataformat == 'ac3')) {
    554. 

  554. 					unset ( $thisfile_audio ['bits_per_sample'] );
    555. 

  555. 					if (! empty ( $info ['ac3'] ['bitrate'] ) && ($info ['ac3'] ['bitrate'] != $thisfile_audio ['bitrate'])) {
    556. 

  556. 						$thisfile_audio ['bitrate'] = $info ['ac3'] ['bitrate'];
    557. 

  557. 					}
    558. 

  558. 				}
    559. 

  559. 				break;
    560. 

  560. 			
    561. 

  561. 			case 'AVI ' :
    562. 

  562. 				$thisfile_video ['bitrate_mode'] = 'vbr'; // maybe not, but probably
    563. 

  563. 				$thisfile_video ['dataformat'] = 'avi';
    564. 

  564. 				$info ['mime_type'] = 'video/avi';
    565. 

  565. 				
    566. 

  566. 				if (isset ( $thisfile_riff [$RIFFsubtype] ['movi'] ['offset'] )) {
    567. 

  567. 					$info ['avdataoffset'] = $thisfile_riff [$RIFFsubtype] ['movi'] ['offset'] + 8;
    568. 

  568. 					if (isset ( $thisfile_riff ['AVIX'] )) {
    569. 

  569. 						$info ['avdataend'] = $thisfile_riff ['AVIX'] [(count ( $thisfile_riff ['AVIX'] ) - 1)] ['chunks'] ['movi'] ['offset'] + $thisfile_riff ['AVIX'] [(count ( $thisfile_riff ['AVIX'] ) - 1)] ['chunks'] ['movi'] ['size'];
    570. 

  570. 					} else {
    571. 

  571. 						$info ['avdataend'] = $thisfile_riff ['AVI '] ['movi'] ['offset'] + $thisfile_riff ['AVI '] ['movi'] ['size'];
    572. 

  572. 					}
    573. 

  573. 					if ($info ['avdataend'] > $info ['filesize']) {
    574. 

  574. 						$info ['warning'] [] = 'Probably truncated file - expecting ' . ($info ['avdataend'] - $info ['avdataoffset']) . ' bytes of data, only found ' . ($info ['filesize'] - $info ['avdataoffset']) . ' (short by ' . ($info ['avdataend'] - $info ['filesize']) . ' bytes)';
    575. 

  575. 						$info ['avdataend'] = $info ['filesize'];
    576. 

  576. 					}
    577. 

  577. 				}
    578. 

  578. 				
    579. 

  579. 				if (isset ( $thisfile_riff ['AVI '] ['hdrl'] ['strl'] ['indx'] )) {
    580. 

  580. 					//$bIndexType = array(
    581. 

  581. 					//	0x00 => 'AVI_INDEX_OF_INDEXES',
    582. 

  582. 					//	0x01 => 'AVI_INDEX_OF_CHUNKS',
    583. 

  583. 					//	0x80 => 'AVI_INDEX_IS_DATA',
    584. 

  584. 					//);
    585. 

  585. 					//$bIndexSubtype = array(
    586. 

  586. 					//	0x01 => array(
    587. 

  587. 					//		0x01 => 'AVI_INDEX_2FIELD',
    588. 

  588. 					//	),
    589. 

  589. 					//);
    590. 

  590. 					foreach ( $thisfile_riff ['AVI '] ['hdrl'] ['strl'] ['indx'] as $streamnumber => $steamdataarray ) {
    591. 

  591. 						$thisfile_riff_avi_hdrl_strl_indx_stream_data = &$thisfile_riff ['AVI '] ['hdrl'] ['strl'] ['indx'] [$streamnumber] ['data'];
    592. 

  592. 						
    593. 

  593. 						$thisfile_riff_raw ['indx'] [$streamnumber] ['wLongsPerEntry'] = $this->EitherEndian2Int ( substr ( $thisfile_riff_avi_hdrl_strl_indx_stream_data, 0, 2 ) );
    594. 

  594. 						$thisfile_riff_raw ['indx'] [$streamnumber] ['bIndexSubType'] = $this->EitherEndian2Int ( substr ( $thisfile_riff_avi_hdrl_strl_indx_stream_data, 2, 1 ) );
    595. 

  595. 						$thisfile_riff_raw ['indx'] [$streamnumber] ['bIndexType'] = $this->EitherEndian2Int ( substr ( $thisfile_riff_avi_hdrl_strl_indx_stream_data, 3, 1 ) );
    596. 

  596. 						$thisfile_riff_raw ['indx'] [$streamnumber] ['nEntriesInUse'] = $this->EitherEndian2Int ( substr ( $thisfile_riff_avi_hdrl_strl_indx_stream_data, 4, 4 ) );
    597. 

  597. 						$thisfile_riff_raw ['indx'] [$streamnumber] ['dwChunkId'] = substr ( $thisfile_riff_avi_hdrl_strl_indx_stream_data, 8, 4 );
    598. 

  598. 						$thisfile_riff_raw ['indx'] [$streamnumber] ['dwReserved'] = $this->EitherEndian2Int ( substr ( $thisfile_riff_avi_hdrl_strl_indx_stream_data, 12, 4 ) );
    599. 

  599. 						
    600. 

  600. 						//$thisfile_riff_raw['indx'][$streamnumber]['bIndexType_name']    =    $bIndexType[$thisfile_riff_raw['indx'][$streamnumber]['bIndexType']];
    601. 

  601. 						//$thisfile_riff_raw['indx'][$streamnumber]['bIndexSubType_name'] = $bIndexSubtype[$thisfile_riff_raw['indx'][$streamnumber]['bIndexType']][$thisfile_riff_raw['indx'][$streamnumber]['bIndexSubType']];
    602. 

  602. 						
    603. 

  603. 

  604. 						unset ( $thisfile_riff_avi_hdrl_strl_indx_stream_data );
    605. 

  605. 					}
    606. 

  606. 				}
    607. 

  607. 				if (isset ( $thisfile_riff ['AVI '] ['hdrl'] ['avih'] [$streamindex] ['data'] )) {
    608. 

  608. 					$avihData = $thisfile_riff ['AVI '] ['hdrl'] ['avih'] [$streamindex] ['data'];
    609. 

  609. 					
    610. 

  610. 					// shortcut
    611. 

  611. 					$thisfile_riff_raw ['avih'] = array ();
    612. 

  612. 					$thisfile_riff_raw_avih = &$thisfile_riff_raw ['avih'];
    613. 

  613. 					
    614. 

  614. 					$thisfile_riff_raw_avih ['dwMicroSecPerFrame'] = $this->EitherEndian2Int ( substr ( $avihData, 0, 4 ) ); // frame display rate (or 0L)
    615. 

  615. 					if ($thisfile_riff_raw_avih ['dwMicroSecPerFrame'] == 0) {
    616. 

  616. 						$info ['error'] [] = 'Corrupt RIFF file: avih.dwMicroSecPerFrame == zero';
    617. 

  617. 						return false;
    618. 

  618. 					}
    619. 

  619. 					$thisfile_riff_raw_avih ['dwMaxBytesPerSec'] = $this->EitherEndian2Int ( substr ( $avihData, 4, 4 ) ); // max. transfer rate
    620. 

  620. 					$thisfile_riff_raw_avih ['dwPaddingGranularity'] = $this->EitherEndian2Int ( substr ( $avihData, 8, 4 ) ); // pad to multiples of this size; normally 2K.
    621. 

  621. 					$thisfile_riff_raw_avih ['dwFlags'] = $this->EitherEndian2Int ( substr ( $avihData, 12, 4 ) ); // the ever-present flags
    622. 

  622. 					$thisfile_riff_raw_avih ['dwTotalFrames'] = $this->EitherEndian2Int ( substr ( $avihData, 16, 4 ) ); // # frames in file
    623. 

  623. 					$thisfile_riff_raw_avih ['dwInitialFrames'] = $this->EitherEndian2Int ( substr ( $avihData, 20, 4 ) );
    624. 

  624. 					$thisfile_riff_raw_avih ['dwStreams'] = $this->EitherEndian2Int ( substr ( $avihData, 24, 4 ) );
    625. 

  625. 					$thisfile_riff_raw_avih ['dwSuggestedBufferSize'] = $this->EitherEndian2Int ( substr ( $avihData, 28, 4 ) );
    626. 

  626. 					$thisfile_riff_raw_avih ['dwWidth'] = $this->EitherEndian2Int ( substr ( $avihData, 32, 4 ) );
    627. 

  627. 					$thisfile_riff_raw_avih ['dwHeight'] = $this->EitherEndian2Int ( substr ( $avihData, 36, 4 ) );
    628. 

  628. 					$thisfile_riff_raw_avih ['dwScale'] = $this->EitherEndian2Int ( substr ( $avihData, 40, 4 ) );
    629. 

  629. 					$thisfile_riff_raw_avih ['dwRate'] = $this->EitherEndian2Int ( substr ( $avihData, 44, 4 ) );
    630. 

  630. 					$thisfile_riff_raw_avih ['dwStart'] = $this->EitherEndian2Int ( substr ( $avihData, 48, 4 ) );
    631. 

  631. 					$thisfile_riff_raw_avih ['dwLength'] = $this->EitherEndian2Int ( substr ( $avihData, 52, 4 ) );
    632. 

  632. 					
    633. 

  633. 					$thisfile_riff_raw_avih ['flags'] ['hasindex'] = ( bool ) ($thisfile_riff_raw_avih ['dwFlags'] & 0x00000010);
    634. 

  634. 					$thisfile_riff_raw_avih ['flags'] ['mustuseindex'] = ( bool ) ($thisfile_riff_raw_avih ['dwFlags'] & 0x00000020);
    635. 

  635. 					$thisfile_riff_raw_avih ['flags'] ['interleaved'] = ( bool ) ($thisfile_riff_raw_avih ['dwFlags'] & 0x00000100);
    636. 

  636. 					$thisfile_riff_raw_avih ['flags'] ['trustcktype'] = ( bool ) ($thisfile_riff_raw_avih ['dwFlags'] & 0x00000800);
    637. 

  637. 					$thisfile_riff_raw_avih ['flags'] ['capturedfile'] = ( bool ) ($thisfile_riff_raw_avih ['dwFlags'] & 0x00010000);
    638. 

  638. 					$thisfile_riff_raw_avih ['flags'] ['copyrighted'] = ( bool ) ($thisfile_riff_raw_avih ['dwFlags'] & 0x00020010);
    639. 

  639. 					
    640. 

  640. 					// shortcut
    641. 

  641. 					$thisfile_riff_video [$streamindex] = array ();
    642. 

  642. 					$thisfile_riff_video_current = &$thisfile_riff_video [$streamindex];
    643. 

  643. 					
    644. 

  644. 					if ($thisfile_riff_raw_avih ['dwWidth'] > 0) {
    645. 

  645. 						$thisfile_riff_video_current ['frame_width'] = $thisfile_riff_raw_avih ['dwWidth'];
    646. 

  646. 						$thisfile_video ['resolution_x'] = $thisfile_riff_video_current ['frame_width'];
    647. 

  647. 					}
    648. 

  648. 					if ($thisfile_riff_raw_avih ['dwHeight'] > 0) {
    649. 

  649. 						$thisfile_riff_video_current ['frame_height'] = $thisfile_riff_raw_avih ['dwHeight'];
    650. 

  650. 						$thisfile_video ['resolution_y'] = $thisfile_riff_video_current ['frame_height'];
    651. 

  651. 					}
    652. 

  652. 					if ($thisfile_riff_raw_avih ['dwTotalFrames'] > 0) {
    653. 

  653. 						$thisfile_riff_video_current ['total_frames'] = $thisfile_riff_raw_avih ['dwTotalFrames'];
    654. 

  654. 						$thisfile_video ['total_frames'] = $thisfile_riff_video_current ['total_frames'];
    655. 

  655. 					}
    656. 

  656. 					
    657. 

  657. 					$thisfile_riff_video_current ['frame_rate'] = round ( 1000000 / $thisfile_riff_raw_avih ['dwMicroSecPerFrame'], 3 );
    658. 

  658. 					$thisfile_video ['frame_rate'] = $thisfile_riff_video_current ['frame_rate'];
    659. 

  659. 				}
    660. 

  660. 				if (isset ( $thisfile_riff ['AVI '] ['hdrl'] ['strl'] ['strh'] [0] ['data'] )) {
    661. 

  661. 					if (is_array ( $thisfile_riff ['AVI '] ['hdrl'] ['strl'] ['strh'] )) {
    662. 

  662. 						for($i = 0; $i < count ( $thisfile_riff ['AVI '] ['hdrl'] ['strl'] ['strh'] ); $i ++) {
    663. 

  663. 							if (isset ( $thisfile_riff ['AVI '] ['hdrl'] ['strl'] ['strh'] [$i] ['data'] )) {
    664. 

  664. 								$strhData = $thisfile_riff ['AVI '] ['hdrl'] ['strl'] ['strh'] [$i] ['data'];
    665. 

  665. 								$strhfccType = substr ( $strhData, 0, 4 );
    666. 

  666. 								
    667. 

  667. 								if (isset ( $thisfile_riff ['AVI '] ['hdrl'] ['strl'] ['strf'] [$i] ['data'] )) {
    668. 

  668. 									$strfData = $thisfile_riff ['AVI '] ['hdrl'] ['strl'] ['strf'] [$i] ['data'];
    669. 

  669. 									
    670. 

  670. 									// shortcut
    671. 

  671. 									$thisfile_riff_raw_strf_strhfccType_streamindex = &$thisfile_riff_raw ['strf'] [$strhfccType] [$streamindex];
    672. 

  672. 									
    673. 

  673. 									switch ($strhfccType) {
    674. 

  674. 										case 'auds' :
    675. 

  675. 											$thisfile_audio ['bitrate_mode'] = 'cbr';
    676. 

  676. 											$thisfile_audio_dataformat = 'wav';
    677. 

  677. 											if (isset ( $thisfile_riff_audio ) && is_array ( $thisfile_riff_audio )) {
    678. 

  678. 												$streamindex = count ( $thisfile_riff_audio );
    679. 

  679. 											}
    680. 

  680. 											
    681. 

  681. 											$thisfile_riff_audio [$streamindex] = getid3_riff::RIFFparseWAVEFORMATex ( $strfData );
    682. 

  682. 											$thisfile_audio ['wformattag'] = $thisfile_riff_audio [$streamindex] ['raw'] ['wFormatTag'];
    683. 

  683. 											
    684. 

  684. 											// shortcut
    685. 

  685. 											$thisfile_audio ['streams'] [$streamindex] = $thisfile_riff_audio [$streamindex];
    686. 

  686. 											$thisfile_audio_streams_currentstream = &$thisfile_audio ['streams'] [$streamindex];
    687. 

  687. 											
    688. 

  688. 											if ($thisfile_audio_streams_currentstream ['bits_per_sample'] == 0) {
    689. 

  689. 												unset ( $thisfile_audio_streams_currentstream ['bits_per_sample'] );
    690. 

  690. 											}
    691. 

  691. 											$thisfile_audio_streams_currentstream ['wformattag'] = $thisfile_audio_streams_currentstream ['raw'] ['wFormatTag'];
    692. 

  692. 											unset ( $thisfile_audio_streams_currentstream ['raw'] );
    693. 

  693. 											
    694. 

  694. 											// shortcut
    695. 

  695. 											$thisfile_riff_raw ['strf'] [$strhfccType] [$streamindex] = $thisfile_riff_audio [$streamindex] ['raw'];
    696. 

  696. 											
    697. 

  697. 											unset ( $thisfile_riff_audio [$streamindex] ['raw'] );
    698. 

  698. 											$thisfile_audio = getid3_lib::array_merge_noclobber ( $thisfile_audio, $thisfile_riff_audio [$streamindex] );
    699. 

  699. 											
    700. 

  700. 											$thisfile_audio ['lossless'] = false;
    701. 

  701. 											switch ($thisfile_riff_raw_strf_strhfccType_streamindex ['wFormatTag']) {
    702. 

  702. 												case 0x0001 : // PCM
    703. 

  703. 													$thisfile_audio_dataformat = 'wav';
    704. 

  704. 													$thisfile_audio ['lossless'] = true;
    705. 

  705. 													break;
    706. 

  706. 												
    707. 

  707. 												case 0x0050 : // MPEG Layer 2 or Layer 1
    708. 

  708. 													$thisfile_audio_dataformat = 'mp2'; // Assume Layer-2
    709. 

  709. 													break;
    710. 

  710. 												
    711. 

  711. 												case 0x0055 : // MPEG Layer 3
    712. 

  712. 													$thisfile_audio_dataformat = 'mp3';
    713. 

  713. 													break;
    714. 

  714. 												
    715. 

  715. 												case 0x00FF : // AAC
    716. 

  716. 													$thisfile_audio_dataformat = 'aac';
    717. 

  717. 													break;
    718. 

  718. 												
    719. 

  719. 												case 0x0161 : // Windows Media v7 / v8 / v9
    720. 

  720. 												case 0x0162 : // Windows Media Professional v9
    721. 

  721. 												case 0x0163 : // Windows Media Lossess v9
    722. 

  722. 													$thisfile_audio_dataformat = 'wma';
    723. 

  723. 													break;
    724. 

  724. 												
    725. 

  725. 												case 0x2000 : // AC-3
    726. 

  726. 													$thisfile_audio_dataformat = 'ac3';
    727. 

  727. 													break;
    728. 

  728. 												
    729. 

  729. 												case 0x2001 : // DTS
    730. 

  730. 													$thisfile_audio_dataformat = 'dts';
    731. 

  731. 													break;
    732. 

  732. 												
    733. 

  733. 												default :
    734. 

  734. 													$thisfile_audio_dataformat = 'wav';
    735. 

  735. 													break;
    736. 

  736. 											}
    737. 

  737. 											$thisfile_audio_streams_currentstream ['dataformat'] = $thisfile_audio_dataformat;
    738. 

  738. 											$thisfile_audio_streams_currentstream ['lossless'] = $thisfile_audio ['lossless'];
    739. 

  739. 											$thisfile_audio_streams_currentstream ['bitrate_mode'] = $thisfile_audio ['bitrate_mode'];
    740. 

  740. 											break;
    741. 

  741. 										
    742. 

  742. 										case 'iavs' :
    743. 

  743. 										case 'vids' :
    744. 

  744. 											// shortcut
    745. 

  745. 											$thisfile_riff_raw ['strh'] [$i] = array ();
    746. 

  746. 											$thisfile_riff_raw_strh_current = &$thisfile_riff_raw ['strh'] [$i];
    747. 

  747. 											
    748. 

  748. 											$thisfile_riff_raw_strh_current ['fccType'] = substr ( $strhData, 0, 4 ); // same as $strhfccType;
    749. 

  749. 											$thisfile_riff_raw_strh_current ['fccHandler'] = substr ( $strhData, 4, 4 );
    750. 

  750. 											$thisfile_riff_raw_strh_current ['dwFlags'] = $this->EitherEndian2Int ( substr ( $strhData, 8, 4 ) ); // Contains AVITF_* flags
    751. 

  751. 											$thisfile_riff_raw_strh_current ['wPriority'] = $this->EitherEndian2Int ( substr ( $strhData, 12, 2 ) );
    752. 

  752. 											$thisfile_riff_raw_strh_current ['wLanguage'] = $this->EitherEndian2Int ( substr ( $strhData, 14, 2 ) );
    753. 

  753. 											$thisfile_riff_raw_strh_current ['dwInitialFrames'] = $this->EitherEndian2Int ( substr ( $strhData, 16, 4 ) );
    754. 

  754. 											$thisfile_riff_raw_strh_current ['dwScale'] = $this->EitherEndian2Int ( substr ( $strhData, 20, 4 ) );
    755. 

  755. 											$thisfile_riff_raw_strh_current ['dwRate'] = $this->EitherEndian2Int ( substr ( $strhData, 24, 4 ) );
    756. 

  756. 											$thisfile_riff_raw_strh_current ['dwStart'] = $this->EitherEndian2Int ( substr ( $strhData, 28, 4 ) );
    757. 

  757. 											$thisfile_riff_raw_strh_current ['dwLength'] = $this->EitherEndian2Int ( substr ( $strhData, 32, 4 ) );
    758. 

  758. 											$thisfile_riff_raw_strh_current ['dwSuggestedBufferSize'] = $this->EitherEndian2Int ( substr ( $strhData, 36, 4 ) );
    759. 

  759. 											$thisfile_riff_raw_strh_current ['dwQuality'] = $this->EitherEndian2Int ( substr ( $strhData, 40, 4 ) );
    760. 

  760. 											$thisfile_riff_raw_strh_current ['dwSampleSize'] = $this->EitherEndian2Int ( substr ( $strhData, 44, 4 ) );
    761. 

  761. 											$thisfile_riff_raw_strh_current ['rcFrame'] = $this->EitherEndian2Int ( substr ( $strhData, 48, 4 ) );
    762. 

  762. 											
    763. 

  763. 											$thisfile_riff_video_current ['codec'] = getid3_riff::RIFFfourccLookup ( $thisfile_riff_raw_strh_current ['fccHandler'] );
    764. 

  764. 											$thisfile_video ['fourcc'] = $thisfile_riff_raw_strh_current ['fccHandler'];
    765. 

  765. 											if (! $thisfile_riff_video_current ['codec'] && isset ( $thisfile_riff_raw_strf_strhfccType_streamindex ['fourcc'] ) && getid3_riff::RIFFfourccLookup ( $thisfile_riff_raw_strf_strhfccType_streamindex ['fourcc'] )) {
    766. 

  766. 												$thisfile_riff_video_current ['codec'] = getid3_riff::RIFFfourccLookup ( $thisfile_riff_raw_strf_strhfccType_streamindex ['fourcc'] );
    767. 

  767. 												$thisfile_video ['fourcc'] = $thisfile_riff_raw_strf_strhfccType_streamindex ['fourcc'];
    768. 

  768. 											}
    769. 

  769. 											$thisfile_video ['codec'] = $thisfile_riff_video_current ['codec'];
    770. 

  770. 											$thisfile_video ['pixel_aspect_ratio'] = ( float ) 1;
    771. 

  771. 											switch ($thisfile_riff_raw_strh_current ['fccHandler']) {
    772. 

  772. 												case 'HFYU' : // Huffman Lossless Codec
    773. 

  773. 												case 'IRAW' : // Intel YUV Uncompressed
    774. 

  774. 												case 'YUY2' : // Uncompressed YUV 4:2:2
    775. 

  775. 													$thisfile_video ['lossless'] = true;
    776. 

  776. 													break;
    777. 

  777. 												
    778. 

  778. 												default :
    779. 

  779. 													$thisfile_video ['lossless'] = false;
    780. 

  780. 													break;
    781. 

  781. 											}
    782. 

  782. 											
    783. 

  783. 											switch ($strhfccType) {
    784. 

  784. 												case 'vids' :
    785. 

  785. 													$thisfile_riff_raw_strf_strhfccType_streamindex = getid3_riff::ParseBITMAPINFOHEADER ( substr ( $strfData, 0, 40 ), ($info ['fileformat'] == 'riff') );
    786. 

  786. 													//echo '<pre>'.print_r($thisfile_riff_raw_strf_strhfccType_streamindex, true).'</pre>';
    787. 

  787. 													$thisfile_video ['bits_per_sample'] = $thisfile_riff_raw_strf_strhfccType_streamindex ['biBitCount'];
    788. 

  788. 													
    789. 

  789. 													if ($thisfile_riff_video_current ['codec'] == 'DV') {
    790. 

  790. 														$thisfile_riff_video_current ['dv_type'] = 2;
    791. 

  791. 													}
    792. 

  792. 													break;
    793. 

  793. 												
    794. 

  794. 												case 'iavs' :
    795. 

  795. 													$thisfile_riff_video_current ['dv_type'] = 1;
    796. 

  796. 													break;
    797. 

  797. 											}
    798. 

  798. 											break;
    799. 

  799. 										
    800. 

  800. 										defa…
    801.

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