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/mp3player/player/php/getid3/module.audio-video.asf.php

https://github.com/josephrmoore/mp3player
PHP | 1689 lines | 1155 code | 207 blank | 327 comment | 119 complexity | ee4ba02b3f796224b78f2d3a6d1c1129 MD5 | raw file
    

  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.asf.php                                  //
    11. 

  11. // module for analyzing ASF, WMA and WMV files                 //
    12. 

  12. // dependencies: module.audio-video.riff.php                   //
    13. 

  13. //                                                            ///
    14. 

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

  15. 

  16. getid3_lib::IncludeDependency(GETID3_INCLUDEPATH.'module.audio-video.riff.php', __FILE__, true);
    17. 

  17. 

  18. $GUIDarray = getid3_asf::KnownGUIDs();
    19. 

  19. foreach ($GUIDarray as $GUIDname => $hexstringvalue) {
    20. 

  20. 	// initialize all GUID constants
    21. 

  21. 	define($GUIDname, getid3_asf::GUIDtoBytestring($hexstringvalue));
    22. 

  22. }
    23. 

  23. 

  24. 

  25. 

  26. class getid3_asf
    27. 

  27. {
    28. 

  28. 

  29. 	function getid3_asf(&$fd, &$ThisFileInfo) {
    30. 

  30. 

  31. 		// Shortcuts
    32. 

  32. 		$thisfile_audio = &$ThisFileInfo['audio'];
    33. 

  33. 		$thisfile_video = &$ThisFileInfo['video'];
    34. 

  34. 		$ThisFileInfo['asf'] = array();
    35. 

  35. 		$thisfile_asf        = &$ThisFileInfo['asf'];
    36. 

  36. 		$thisfile_asf['comments'] = array();
    37. 

  37. 		$thisfile_asf_comments    = &$thisfile_asf['comments'];
    38. 

  38. 		$thisfile_asf['header_object'] = array();
    39. 

  39. 		$thisfile_asf_headerobject     = &$thisfile_asf['header_object'];
    40. 

  40. 

  41. 

  42. 		// ASF structure:
    43. 

  43. 		// * Header Object [required]
    44. 

  44. 		//   * File Properties Object [required]   (global file attributes)
    45. 

  45. 		//   * Stream Properties Object [required] (defines media stream & characteristics)
    46. 

  46. 		//   * Header Extension Object [required]  (additional functionality)
    47. 

  47. 		//   * Content Description Object          (bibliographic information)
    48. 

  48. 		//   * Script Command Object               (commands for during playback)
    49. 

  49. 		//   * Marker Object                       (named jumped points within the file)
    50. 

  50. 		// * Data Object [required]
    51. 

  51. 		//   * Data Packets
    52. 

  52. 		// * Index Object
    53. 

  53. 

  54. 		// Header Object: (mandatory, one only)
    55. 

  55. 		// Field Name                   Field Type   Size (bits)
    56. 

  56. 		// Object ID                    GUID         128             // GUID for header object - GETID3_ASF_Header_Object
    57. 

  57. 		// Object Size                  QWORD        64              // size of header object, including 30 bytes of Header Object header
    58. 

  58. 		// Number of Header Objects     DWORD        32              // number of objects in header object
    59. 

  59. 		// Reserved1                    BYTE         8               // hardcoded: 0x01
    60. 

  60. 		// Reserved2                    BYTE         8               // hardcoded: 0x02
    61. 

  61. 

  62. 		$ThisFileInfo['fileformat'] = 'asf';
    63. 

  63. 

  64. 		fseek($fd, $ThisFileInfo['avdataoffset'], SEEK_SET);
    65. 

  65. 		$HeaderObjectData = fread($fd, 30);
    66. 

  66. 

  67. 		$thisfile_asf_headerobject['objectid']      = substr($HeaderObjectData, 0, 16);
    68. 

  68. 		$thisfile_asf_headerobject['objectid_guid'] = $this->BytestringToGUID($thisfile_asf_headerobject['objectid']);
    69. 

  69. 		if ($thisfile_asf_headerobject['objectid'] != GETID3_ASF_Header_Object) {
    70. 

  70. 			$ThisFileInfo['warning'][] = 'ASF header GUID {'.$this->BytestringToGUID($thisfile_asf_headerobject['objectid']).'} does not match expected "GETID3_ASF_Header_Object" GUID {'.$this->BytestringToGUID(GETID3_ASF_Header_Object).'}';
    71. 

  71. 			unset($ThisFileInfo['fileformat']);
    72. 

  72. 			unset($ThisFileInfo['asf']);
    73. 

  73. 			return false;
    74. 

  74. 			break;
    75. 

  75. 		}
    76. 

  76. 		$thisfile_asf_headerobject['objectsize']    = getid3_lib::LittleEndian2Int(substr($HeaderObjectData, 16, 8));
    77. 

  77. 		$thisfile_asf_headerobject['headerobjects'] = getid3_lib::LittleEndian2Int(substr($HeaderObjectData, 24, 4));
    78. 

  78. 		$thisfile_asf_headerobject['reserved1']     = getid3_lib::LittleEndian2Int(substr($HeaderObjectData, 28, 1));
    79. 

  79. 		$thisfile_asf_headerobject['reserved2']     = getid3_lib::LittleEndian2Int(substr($HeaderObjectData, 29, 1));
    80. 

  80. 

  81. 		$ASFHeaderData = fread($fd, $thisfile_asf_headerobject['objectsize'] - 30);
    82. 

  82. 		$offset = 0;
    83. 

  83. 

  84. 		for ($HeaderObjectsCounter = 0; $HeaderObjectsCounter < $thisfile_asf_headerobject['headerobjects']; $HeaderObjectsCounter++) {
    85. 

  85. 			$NextObjectGUID     = substr($ASFHeaderData, $offset, 16);
    86. 

  86. 			$offset += 16;
    87. 

  87. 			$NextObjectGUIDtext = $this->BytestringToGUID($NextObjectGUID);
    88. 

  88. 			$NextObjectSize = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 8));
    89. 

  89. 			$offset += 8;
    90. 

  90. 			switch ($NextObjectGUID) {
    91. 

  91. 

  92. 				case GETID3_ASF_File_Properties_Object:
    93. 

  93. 					// File Properties Object: (mandatory, one only)
    94. 

  94. 					// Field Name                   Field Type   Size (bits)
    95. 

  95. 					// Object ID                    GUID         128             // GUID for file properties object - GETID3_ASF_File_Properties_Object
    96. 

  96. 					// Object Size                  QWORD        64              // size of file properties object, including 104 bytes of File Properties Object header
    97. 

  97. 					// File ID                      GUID         128             // unique ID - identical to File ID in Data Object
    98. 

  98. 					// File Size                    QWORD        64              // entire file in bytes. Invalid if Broadcast Flag == 1
    99. 

  99. 					// Creation Date                QWORD        64              // date & time of file creation. Maybe invalid if Broadcast Flag == 1
    100. 

  100. 					// Data Packets Count           QWORD        64              // number of data packets in Data Object. Invalid if Broadcast Flag == 1
    101. 

  101. 					// Play Duration                QWORD        64              // playtime, in 100-nanosecond units. Invalid if Broadcast Flag == 1
    102. 

  102. 					// Send Duration                QWORD        64              // time needed to send file, in 100-nanosecond units. Players can ignore this value. Invalid if Broadcast Flag == 1
    103. 

  103. 					// Preroll                      QWORD        64              // time to buffer data before starting to play file, in 1-millisecond units. If <> 0, PlayDuration and PresentationTime have been offset by this amount
    104. 

  104. 					// Flags                        DWORD        32              //
    105. 

  105. 					// * Broadcast Flag             bits         1  (0x01)       // file is currently being written, some header values are invalid
    106. 

  106. 					// * Seekable Flag              bits         1  (0x02)       // is file seekable
    107. 

  107. 					// * Reserved                   bits         30 (0xFFFFFFFC) // reserved - set to zero
    108. 

  108. 					// Minimum Data Packet Size     DWORD        32              // in bytes. should be same as Maximum Data Packet Size. Invalid if Broadcast Flag == 1
    109. 

  109. 					// Maximum Data Packet Size     DWORD        32              // in bytes. should be same as Minimum Data Packet Size. Invalid if Broadcast Flag == 1
    110. 

  110. 					// Maximum Bitrate              DWORD        32              // maximum instantaneous bitrate in bits per second for entire file, including all data streams and ASF overhead
    111. 

  111. 

  112. 					// shortcut
    113. 

  113. 					$thisfile_asf['file_properties_object'] = array();
    114. 

  114. 					$thisfile_asf_filepropertiesobject      = &$thisfile_asf['file_properties_object'];
    115. 

  115. 

  116. 					$thisfile_asf_filepropertiesobject['objectid']           = $NextObjectGUID;
    117. 

  117. 					$thisfile_asf_filepropertiesobject['objectid_guid']      = $NextObjectGUIDtext;
    118. 

  118. 					$thisfile_asf_filepropertiesobject['objectsize']         = $NextObjectSize;
    119. 

  119. 					$thisfile_asf_filepropertiesobject['fileid']             = substr($ASFHeaderData, $offset, 16);
    120. 

  120. 					$offset += 16;
    121. 

  121. 					$thisfile_asf_filepropertiesobject['fileid_guid']        = $this->BytestringToGUID($thisfile_asf_filepropertiesobject['fileid']);
    122. 

  122. 					$thisfile_asf_filepropertiesobject['filesize']           = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 8));
    123. 

  123. 					$offset += 8;
    124. 

  124. 					$thisfile_asf_filepropertiesobject['creation_date']      = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 8));
    125. 

  125. 					$thisfile_asf_filepropertiesobject['creation_date_unix'] = $this->FILETIMEtoUNIXtime($thisfile_asf_filepropertiesobject['creation_date']);
    126. 

  126. 					$offset += 8;
    127. 

  127. 					$thisfile_asf_filepropertiesobject['data_packets']       = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 8));
    128. 

  128. 					$offset += 8;
    129. 

  129. 					$thisfile_asf_filepropertiesobject['play_duration']      = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 8));
    130. 

  130. 					$offset += 8;
    131. 

  131. 					$thisfile_asf_filepropertiesobject['send_duration']      = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 8));
    132. 

  132. 					$offset += 8;
    133. 

  133. 					$thisfile_asf_filepropertiesobject['preroll']            = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 8));
    134. 

  134. 					$offset += 8;
    135. 

  135. 					$thisfile_asf_filepropertiesobject['flags_raw']          = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 4));
    136. 

  136. 					$offset += 4;
    137. 

  137. 					$thisfile_asf_filepropertiesobject['flags']['broadcast'] = (bool) ($thisfile_asf_filepropertiesobject['flags_raw'] & 0x0001);
    138. 

  138. 					$thisfile_asf_filepropertiesobject['flags']['seekable']  = (bool) ($thisfile_asf_filepropertiesobject['flags_raw'] & 0x0002);
    139. 

  139. 

  140. 					$thisfile_asf_filepropertiesobject['min_packet_size']    = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 4));
    141. 

  141. 					$offset += 4;
    142. 

  142. 					$thisfile_asf_filepropertiesobject['max_packet_size']    = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 4));
    143. 

  143. 					$offset += 4;
    144. 

  144. 					$thisfile_asf_filepropertiesobject['max_bitrate']        = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 4));
    145. 

  145. 					$offset += 4;
    146. 

  146. 

  147. 					if ($thisfile_asf_filepropertiesobject['flags']['broadcast']) {
    148. 

  148. 

  149. 						// broadcast flag is set, some values invalid
    150. 

  150. 						unset($thisfile_asf_filepropertiesobject['filesize']);
    151. 

  151. 						unset($thisfile_asf_filepropertiesobject['data_packets']);
    152. 

  152. 						unset($thisfile_asf_filepropertiesobject['play_duration']);
    153. 

  153. 						unset($thisfile_asf_filepropertiesobject['send_duration']);
    154. 

  154. 						unset($thisfile_asf_filepropertiesobject['min_packet_size']);
    155. 

  155. 						unset($thisfile_asf_filepropertiesobject['max_packet_size']);
    156. 

  156. 

  157. 					} else {
    158. 

  158. 

  159. 						// broadcast flag NOT set, perform calculations
    160. 

  160. 						$ThisFileInfo['playtime_seconds'] = ($thisfile_asf_filepropertiesobject['play_duration'] / 10000000) - ($thisfile_asf_filepropertiesobject['preroll'] / 1000);
    161. 

  161. 

  162. 						//$ThisFileInfo['bitrate'] = $thisfile_asf_filepropertiesobject['max_bitrate'];
    163. 

  163. 						$ThisFileInfo['bitrate'] = ((isset($thisfile_asf_filepropertiesobject['filesize']) ? $thisfile_asf_filepropertiesobject['filesize'] : $ThisFileInfo['filesize']) * 8) / $ThisFileInfo['playtime_seconds'];
    164. 

  164. 					}
    165. 

  165. 					break;
    166. 

  166. 

  167. 				case GETID3_ASF_Stream_Properties_Object:
    168. 

  168. 					// Stream Properties Object: (mandatory, one per media stream)
    169. 

  169. 					// Field Name                   Field Type   Size (bits)
    170. 

  170. 					// Object ID                    GUID         128             // GUID for stream properties object - GETID3_ASF_Stream_Properties_Object
    171. 

  171. 					// Object Size                  QWORD        64              // size of stream properties object, including 78 bytes of Stream Properties Object header
    172. 

  172. 					// Stream Type                  GUID         128             // GETID3_ASF_Audio_Media, GETID3_ASF_Video_Media or GETID3_ASF_Command_Media
    173. 

  173. 					// Error Correction Type        GUID         128             // GETID3_ASF_Audio_Spread for audio-only streams, GETID3_ASF_No_Error_Correction for other stream types
    174. 

  174. 					// Time Offset                  QWORD        64              // 100-nanosecond units. typically zero. added to all timestamps of samples in the stream
    175. 

  175. 					// Type-Specific Data Length    DWORD        32              // number of bytes for Type-Specific Data field
    176. 

  176. 					// Error Correction Data Length DWORD        32              // number of bytes for Error Correction Data field
    177. 

  177. 					// Flags                        WORD         16              //
    178. 

  178. 					// * Stream Number              bits         7 (0x007F)      // number of this stream.  1 <= valid <= 127
    179. 

  179. 					// * Reserved                   bits         8 (0x7F80)      // reserved - set to zero
    180. 

  180. 					// * Encrypted Content Flag     bits         1 (0x8000)      // stream contents encrypted if set
    181. 

  181. 					// Reserved                     DWORD        32              // reserved - set to zero
    182. 

  182. 					// Type-Specific Data           BYTESTREAM   variable        // type-specific format data, depending on value of Stream Type
    183. 

  183. 					// Error Correction Data        BYTESTREAM   variable        // error-correction-specific format data, depending on value of Error Correct Type
    184. 

  184. 

  185. 					// There is one GETID3_ASF_Stream_Properties_Object for each stream (audio, video) but the
    186. 

  186. 					// stream number isn't known until halfway through decoding the structure, hence it
    187. 

  187. 					// it is decoded to a temporary variable and then stuck in the appropriate index later
    188. 

  188. 

  189. 					$StreamPropertiesObjectData['objectid']           = $NextObjectGUID;
    190. 

  190. 					$StreamPropertiesObjectData['objectid_guid']      = $NextObjectGUIDtext;
    191. 

  191. 					$StreamPropertiesObjectData['objectsize']         = $NextObjectSize;
    192. 

  192. 					$StreamPropertiesObjectData['stream_type']        = substr($ASFHeaderData, $offset, 16);
    193. 

  193. 					$offset += 16;
    194. 

  194. 					$StreamPropertiesObjectData['stream_type_guid']   = $this->BytestringToGUID($StreamPropertiesObjectData['stream_type']);
    195. 

  195. 					$StreamPropertiesObjectData['error_correct_type'] = substr($ASFHeaderData, $offset, 16);
    196. 

  196. 					$offset += 16;
    197. 

  197. 					$StreamPropertiesObjectData['error_correct_guid'] = $this->BytestringToGUID($StreamPropertiesObjectData['error_correct_type']);
    198. 

  198. 					$StreamPropertiesObjectData['time_offset']        = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 8));
    199. 

  199. 					$offset += 8;
    200. 

  200. 					$StreamPropertiesObjectData['type_data_length']   = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 4));
    201. 

  201. 					$offset += 4;
    202. 

  202. 					$StreamPropertiesObjectData['error_data_length']  = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 4));
    203. 

  203. 					$offset += 4;
    204. 

  204. 					$StreamPropertiesObjectData['flags_raw']          = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 2));
    205. 

  205. 					$offset += 2;
    206. 

  206. 					$StreamPropertiesObjectStreamNumber               = $StreamPropertiesObjectData['flags_raw'] & 0x007F;
    207. 

  207. 					$StreamPropertiesObjectData['flags']['encrypted'] = (bool) ($StreamPropertiesObjectData['flags_raw'] & 0x8000);
    208. 

  208. 

  209. 					$offset += 4; // reserved - DWORD
    210. 

  210. 					$StreamPropertiesObjectData['type_specific_data'] = substr($ASFHeaderData, $offset, $StreamPropertiesObjectData['type_data_length']);
    211. 

  211. 					$offset += $StreamPropertiesObjectData['type_data_length'];
    212. 

  212. 					$StreamPropertiesObjectData['error_correct_data'] = substr($ASFHeaderData, $offset, $StreamPropertiesObjectData['error_data_length']);
    213. 

  213. 					$offset += $StreamPropertiesObjectData['error_data_length'];
    214. 

  214. 

  215. 					switch ($StreamPropertiesObjectData['stream_type']) {
    216. 

  216. 

  217. 						case GETID3_ASF_Audio_Media:
    218. 

  218. 							$thisfile_audio['dataformat']   = (!empty($thisfile_audio['dataformat'])   ? $thisfile_audio['dataformat']   : 'asf');
    219. 

  219. 							$thisfile_audio['bitrate_mode'] = (!empty($thisfile_audio['bitrate_mode']) ? $thisfile_audio['bitrate_mode'] : 'cbr');
    220. 

  220. 

  221. 							$audiodata = getid3_riff::RIFFparseWAVEFORMATex(substr($StreamPropertiesObjectData['type_specific_data'], 0, 16));
    222. 

  222. 							unset($audiodata['raw']);
    223. 

  223. 							$thisfile_audio = getid3_lib::array_merge_noclobber($audiodata, $thisfile_audio);
    224. 

  224. 							break;
    225. 

  225. 

  226. 						case GETID3_ASF_Video_Media:
    227. 

  227. 							$thisfile_video['dataformat']   = (!empty($thisfile_video['dataformat'])   ? $thisfile_video['dataformat']   : 'asf');
    228. 

  228. 							$thisfile_video['bitrate_mode'] = (!empty($thisfile_video['bitrate_mode']) ? $thisfile_video['bitrate_mode'] : 'cbr');
    229. 

  229. 							break;
    230. 

  230. 

  231. 						case GETID3_ASF_Command_Media:
    232. 

  232. 						default:
    233. 

  233. 							// do nothing
    234. 

  234. 							break;
    235. 

  235. 

  236. 					}
    237. 

  237. 

  238. 					$thisfile_asf['stream_properties_object'][$StreamPropertiesObjectStreamNumber] = $StreamPropertiesObjectData;
    239. 

  239. 					unset($StreamPropertiesObjectData); // clear for next stream, if any
    240. 

  240. 					break;
    241. 

  241. 

  242. 				case GETID3_ASF_Header_Extension_Object:
    243. 

  243. 					// Header Extension Object: (mandatory, one only)
    244. 

  244. 					// Field Name                   Field Type   Size (bits)
    245. 

  245. 					// Object ID                    GUID         128             // GUID for Header Extension object - GETID3_ASF_Header_Extension_Object
    246. 

  246. 					// Object Size                  QWORD        64              // size of Header Extension object, including 46 bytes of Header Extension Object header
    247. 

  247. 					// Reserved Field 1             GUID         128             // hardcoded: GETID3_ASF_Reserved_1
    248. 

  248. 					// Reserved Field 2             WORD         16              // hardcoded: 0x00000006
    249. 

  249. 					// Header Extension Data Size   DWORD        32              // in bytes. valid: 0, or > 24. equals object size minus 46
    250. 

  250. 					// Header Extension Data        BYTESTREAM   variable        // array of zero or more extended header objects
    251. 

  251. 

  252. 					// shortcut
    253. 

  253. 					$thisfile_asf['header_extension_object'] = array();
    254. 

  254. 					$thisfile_asf_headerextensionobject      = &$thisfile_asf['header_extension_object'];
    255. 

  255. 

  256. 					$thisfile_asf_headerextensionobject['objectid']            = $NextObjectGUID;
    257. 

  257. 					$thisfile_asf_headerextensionobject['objectid_guid']       = $NextObjectGUIDtext;
    258. 

  258. 					$thisfile_asf_headerextensionobject['objectsize']          = $NextObjectSize;
    259. 

  259. 					$thisfile_asf_headerextensionobject['reserved_1']          = substr($ASFHeaderData, $offset, 16);
    260. 

  260. 					$offset += 16;
    261. 

  261. 					$thisfile_asf_headerextensionobject['reserved_1_guid']     = $this->BytestringToGUID($thisfile_asf_headerextensionobject['reserved_1']);
    262. 

  262. 					if ($thisfile_asf_headerextensionobject['reserved_1'] != GETID3_ASF_Reserved_1) {
    263. 

  263. 						$ThisFileInfo['warning'][] = 'header_extension_object.reserved_1 GUID ('.$this->BytestringToGUID($thisfile_asf_headerextensionobject['reserved_1']).') does not match expected "GETID3_ASF_Reserved_1" GUID ('.$this->BytestringToGUID(GETID3_ASF_Reserved_1).')';
    264. 

  264. 						//return false;
    265. 

  265. 						break;
    266. 

  266. 					}
    267. 

  267. 					$thisfile_asf_headerextensionobject['reserved_2']          = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 2));
    268. 

  268. 					$offset += 2;
    269. 

  269. 					if ($thisfile_asf_headerextensionobject['reserved_2'] != 6) {
    270. 

  270. 						$ThisFileInfo['warning'][] = 'header_extension_object.reserved_2 ('.getid3_lib::PrintHexBytes($thisfile_asf_headerextensionobject['reserved_2']).') does not match expected value of "6"';
    271. 

  271. 						//return false;
    272. 

  272. 						break;
    273. 

  273. 					}
    274. 

  274. 					$thisfile_asf_headerextensionobject['extension_data_size'] = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 4));
    275. 

  275. 					$offset += 4;
    276. 

  276. 					$thisfile_asf_headerextensionobject['extension_data']      =                              substr($ASFHeaderData, $offset, $thisfile_asf_headerextensionobject['extension_data_size']);
    277. 

  277. 					$offset += $thisfile_asf_headerextensionobject['extension_data_size'];
    278. 

  278. 					break;
    279. 

  279. 

  280. 				case GETID3_ASF_Codec_List_Object:
    281. 

  281. 					// Codec List Object: (optional, one only)
    282. 

  282. 					// Field Name                   Field Type   Size (bits)
    283. 

  283. 					// Object ID                    GUID         128             // GUID for Codec List object - GETID3_ASF_Codec_List_Object
    284. 

  284. 					// Object Size                  QWORD        64              // size of Codec List object, including 44 bytes of Codec List Object header
    285. 

  285. 					// Reserved                     GUID         128             // hardcoded: 86D15241-311D-11D0-A3A4-00A0C90348F6
    286. 

  286. 					// Codec Entries Count          DWORD        32              // number of entries in Codec Entries array
    287. 

  287. 					// Codec Entries                array of:    variable        //
    288. 

  288. 					// * Type                       WORD         16              // 0x0001 = Video Codec, 0x0002 = Audio Codec, 0xFFFF = Unknown Codec
    289. 

  289. 					// * Codec Name Length          WORD         16              // number of Unicode characters stored in the Codec Name field
    290. 

  290. 					// * Codec Name                 WCHAR        variable        // array of Unicode characters - name of codec used to create the content
    291. 

  291. 					// * Codec Description Length   WORD         16              // number of Unicode characters stored in the Codec Description field
    292. 

  292. 					// * Codec Description          WCHAR        variable        // array of Unicode characters - description of format used to create the content
    293. 

  293. 					// * Codec Information Length   WORD         16              // number of Unicode characters stored in the Codec Information field
    294. 

  294. 					// * Codec Information          BYTESTREAM   variable        // opaque array of information bytes about the codec used to create the content
    295. 

  295. 

  296. 					// shortcut
    297. 

  297. 					$thisfile_asf['codec_list_object'] = array();
    298. 

  298. 					$thisfile_asf_codeclistobject      = &$thisfile_asf['codec_list_object'];
    299. 

  299. 

  300. 					$thisfile_asf_codeclistobject['objectid']                  = $NextObjectGUID;
    301. 

  301. 					$thisfile_asf_codeclistobject['objectid_guid']             = $NextObjectGUIDtext;
    302. 

  302. 					$thisfile_asf_codeclistobject['objectsize']                = $NextObjectSize;
    303. 

  303. 					$thisfile_asf_codeclistobject['reserved']                  = substr($ASFHeaderData, $offset, 16);
    304. 

  304. 					$offset += 16;
    305. 

  305. 					$thisfile_asf_codeclistobject['reserved_guid']             = $this->BytestringToGUID($thisfile_asf_codeclistobject['reserved']);
    306. 

  306. 					if ($thisfile_asf_codeclistobject['reserved'] != $this->GUIDtoBytestring('86D15241-311D-11D0-A3A4-00A0C90348F6')) {
    307. 

  307. 						$ThisFileInfo['warning'][] = 'codec_list_object.reserved GUID {'.$this->BytestringToGUID($thisfile_asf_codeclistobject['reserved']).'} does not match expected "GETID3_ASF_Reserved_1" GUID {86D15241-311D-11D0-A3A4-00A0C90348F6}';
    308. 

  308. 						//return false;
    309. 

  309. 						break;
    310. 

  310. 					}
    311. 

  311. 					$thisfile_asf_codeclistobject['codec_entries_count'] = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 4));
    312. 

  312. 					$offset += 4;
    313. 

  313. 					for ($CodecEntryCounter = 0; $CodecEntryCounter < $thisfile_asf_codeclistobject['codec_entries_count']; $CodecEntryCounter++) {
    314. 

  314. 						// shortcut
    315. 

  315. 						$thisfile_asf_codeclistobject['codec_entries'][$CodecEntryCounter] = array();
    316. 

  316. 						$thisfile_asf_codeclistobject_codecentries_current = &$thisfile_asf_codeclistobject['codec_entries'][$CodecEntryCounter];
    317. 

  317. 

  318. 						$thisfile_asf_codeclistobject_codecentries_current['type_raw'] = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 2));
    319. 

  319. 						$offset += 2;
    320. 

  320. 						$thisfile_asf_codeclistobject_codecentries_current['type'] = $this->ASFCodecListObjectTypeLookup($thisfile_asf_codeclistobject_codecentries_current['type_raw']);
    321. 

  321. 

  322. 						$CodecNameLength = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 2)) * 2; // 2 bytes per character
    323. 

  323. 						$offset += 2;
    324. 

  324. 						$thisfile_asf_codeclistobject_codecentries_current['name'] = substr($ASFHeaderData, $offset, $CodecNameLength);
    325. 

  325. 						$offset += $CodecNameLength;
    326. 

  326. 

  327. 						$CodecDescriptionLength = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 2)) * 2; // 2 bytes per character
    328. 

  328. 						$offset += 2;
    329. 

  329. 						$thisfile_asf_codeclistobject_codecentries_current['description'] = substr($ASFHeaderData, $offset, $CodecDescriptionLength);
    330. 

  330. 						$offset += $CodecDescriptionLength;
    331. 

  331. 

  332. 						$CodecInformationLength = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 2));
    333. 

  333. 						$offset += 2;
    334. 

  334. 						$thisfile_asf_codeclistobject_codecentries_current['information'] = substr($ASFHeaderData, $offset, $CodecInformationLength);
    335. 

  335. 						$offset += $CodecInformationLength;
    336. 

  336. 

  337. 						if ($thisfile_asf_codeclistobject_codecentries_current['type_raw'] == 2) { // audio codec
    338. 

  338. 

  339. 							if (strpos($thisfile_asf_codeclistobject_codecentries_current['description'], ',') === false) {
    340. 

  340. 								$ThisFileInfo['warning'][] = '[asf][codec_list_object][codec_entries]['.$CodecEntryCounter.'][description] expected to contain comma-seperated list of parameters: "'.$thisfile_asf_codeclistobject_codecentries_current['description'].'"';
    341. 

  341. 							} else {
    342. 

  342. 

  343. 								list($AudioCodecBitrate, $AudioCodecFrequency, $AudioCodecChannels) = explode(',', $this->TrimConvert($thisfile_asf_codeclistobject_codecentries_current['description']));
    344. 

  344. 								$thisfile_audio['codec'] = $this->TrimConvert($thisfile_asf_codeclistobject_codecentries_current['name']);
    345. 

  345. 

  346. 								if (!isset($thisfile_audio['bitrate']) && strstr($AudioCodecBitrate, 'kbps')) {
    347. 

  347. 									$thisfile_audio['bitrate'] = (int) (trim(str_replace('kbps', '', $AudioCodecBitrate)) * 1000);
    348. 

  348. 								}
    349. 

  349. 								//if (!isset($thisfile_video['bitrate']) && isset($thisfile_audio['bitrate']) && isset($thisfile_asf['file_properties_object']['max_bitrate']) && ($thisfile_asf_codeclistobject['codec_entries_count'] > 1)) {
    350. 

  350. 								if (empty($thisfile_video['bitrate']) && !empty($thisfile_audio['bitrate']) && !empty($ThisFileInfo['bitrate'])) {
    351. 

  351. 									//$thisfile_video['bitrate'] = $thisfile_asf['file_properties_object']['max_bitrate'] - $thisfile_audio['bitrate'];
    352. 

  352. 									$thisfile_video['bitrate'] = $ThisFileInfo['bitrate'] - $thisfile_audio['bitrate'];
    353. 

  353. 								}
    354. 

  354. 

  355. 								$AudioCodecFrequency = (int) trim(str_replace('kHz', '', $AudioCodecFrequency));
    356. 

  356. 								switch ($AudioCodecFrequency) {
    357. 

  357. 									case 8:
    358. 

  358. 									case 8000:
    359. 

  359. 										$thisfile_audio['sample_rate'] = 8000;
    360. 

  360. 										break;
    361. 

  361. 

  362. 									case 11:
    363. 

  363. 									case 11025:
    364. 

  364. 										$thisfile_audio['sample_rate'] = 11025;
    365. 

  365. 										break;
    366. 

  366. 

  367. 									case 12:
    368. 

  368. 									case 12000:
    369. 

  369. 										$thisfile_audio['sample_rate'] = 12000;
    370. 

  370. 										break;
    371. 

  371. 

  372. 									case 16:
    373. 

  373. 									case 16000:
    374. 

  374. 										$thisfile_audio['sample_rate'] = 16000;
    375. 

  375. 										break;
    376. 

  376. 

  377. 									case 22:
    378. 

  378. 									case 22050:
    379. 

  379. 										$thisfile_audio['sample_rate'] = 22050;
    380. 

  380. 										break;
    381. 

  381. 

  382. 									case 24:
    383. 

  383. 									case 24000:
    384. 

  384. 										$thisfile_audio['sample_rate'] = 24000;
    385. 

  385. 										break;
    386. 

  386. 

  387. 									case 32:
    388. 

  388. 									case 32000:
    389. 

  389. 										$thisfile_audio['sample_rate'] = 32000;
    390. 

  390. 										break;
    391. 

  391. 

  392. 									case 44:
    393. 

  393. 									case 441000:
    394. 

  394. 										$thisfile_audio['sample_rate'] = 44100;
    395. 

  395. 										break;
    396. 

  396. 

  397. 									case 48:
    398. 

  398. 									case 48000:
    399. 

  399. 										$thisfile_audio['sample_rate'] = 48000;
    400. 

  400. 										break;
    401. 

  401. 

  402. 									default:
    403. 

  403. 										$ThisFileInfo['warning'][] = 'unknown frequency: "'.$AudioCodecFrequency.'" ('.$this->TrimConvert($thisfile_asf_codeclistobject_codecentries_current['description']).')';
    404. 

  404. 										break;
    405. 

  405. 								}
    406. 

  406. 

  407. 								if (!isset($thisfile_audio['channels'])) {
    408. 

  408. 									if (strstr($AudioCodecChannels, 'stereo')) {
    409. 

  409. 										$thisfile_audio['channels'] = 2;
    410. 

  410. 									} elseif (strstr($AudioCodecChannels, 'mono')) {
    411. 

  411. 										$thisfile_audio['channels'] = 1;
    412. 

  412. 									}
    413. 

  413. 								}
    414. 

  414. 

  415. 							}
    416. 

  416. 						}
    417. 

  417. 					}
    418. 

  418. 					break;
    419. 

  419. 

  420. 				case GETID3_ASF_Script_Command_Object:
    421. 

  421. 					// Script Command Object: (optional, one only)
    422. 

  422. 					// Field Name                   Field Type   Size (bits)
    423. 

  423. 					// Object ID                    GUID         128             // GUID for Script Command object - GETID3_ASF_Script_Command_Object
    424. 

  424. 					// Object Size                  QWORD        64              // size of Script Command object, including 44 bytes of Script Command Object header
    425. 

  425. 					// Reserved                     GUID         128             // hardcoded: 4B1ACBE3-100B-11D0-A39B-00A0C90348F6
    426. 

  426. 					// Commands Count               WORD         16              // number of Commands structures in the Script Commands Objects
    427. 

  427. 					// Command Types Count          WORD         16              // number of Command Types structures in the Script Commands Objects
    428. 

  428. 					// Command Types                array of:    variable        //
    429. 

  429. 					// * Command Type Name Length   WORD         16              // number of Unicode characters for Command Type Name
    430. 

  430. 					// * Command Type Name          WCHAR        variable        // array of Unicode characters - name of a type of command
    431. 

  431. 					// Commands                     array of:    variable        //
    432. 

  432. 					// * Presentation Time          DWORD        32              // presentation time of that command, in milliseconds
    433. 

  433. 					// * Type Index                 WORD         16              // type of this command, as a zero-based index into the array of Command Types of this object
    434. 

  434. 					// * Command Name Length        WORD         16              // number of Unicode characters for Command Name
    435. 

  435. 					// * Command Name               WCHAR        variable        // array of Unicode characters - name of this command
    436. 

  436. 

  437. 					// shortcut
    438. 

  438. 					$thisfile_asf['script_command_object'] = array();
    439. 

  439. 					$thisfile_asf_scriptcommandobject      = &$thisfile_asf['script_command_object'];
    440. 

  440. 

  441. 					$thisfile_asf_scriptcommandobject['objectid']             = $NextObjectGUID;
    442. 

  442. 					$thisfile_asf_scriptcommandobject['objectid_guid']        = $NextObjectGUIDtext;
    443. 

  443. 					$thisfile_asf_scriptcommandobject['objectsize']           = $NextObjectSize;
    444. 

  444. 					$thisfile_asf_scriptcommandobject['reserved']             = substr($ASFHeaderData, $offset, 16);
    445. 

  445. 					$offset += 16;
    446. 

  446. 					$thisfile_asf_scriptcommandobject['reserved_guid']        = $this->BytestringToGUID($thisfile_asf_scriptcommandobject['reserved']);
    447. 

  447. 					if ($thisfile_asf_scriptcommandobject['reserved'] != $this->GUIDtoBytestring('4B1ACBE3-100B-11D0-A39B-00A0C90348F6')) {
    448. 

  448. 						$ThisFileInfo['warning'][] = 'script_command_object.reserved GUID {'.$this->BytestringToGUID($thisfile_asf_scriptcommandobject['reserved']).'} does not match expected "GETID3_ASF_Reserved_1" GUID {4B1ACBE3-100B-11D0-A39B-00A0C90348F6}';
    449. 

  449. 						//return false;
    450. 

  450. 						break;
    451. 

  451. 					}
    452. 

  452. 					$thisfile_asf_scriptcommandobject['commands_count']       = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 2));
    453. 

  453. 					$offset += 2;
    454. 

  454. 					$thisfile_asf_scriptcommandobject['command_types_count']  = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 2));
    455. 

  455. 					$offset += 2;
    456. 

  456. 					for ($CommandTypesCounter = 0; $CommandTypesCounter < $thisfile_asf_scriptcommandobject['command_types_count']; $CommandTypesCounter++) {
    457. 

  457. 						$CommandTypeNameLength = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 2)) * 2; // 2 bytes per character
    458. 

  458. 						$offset += 2;
    459. 

  459. 						$thisfile_asf_scriptcommandobject['command_types'][$CommandTypesCounter]['name'] = substr($ASFHeaderData, $offset, $CommandTypeNameLength);
    460. 

  460. 						$offset += $CommandTypeNameLength;
    461. 

  461. 					}
    462. 

  462. 					for ($CommandsCounter = 0; $CommandsCounter < $thisfile_asf_scriptcommandobject['commands_count']; $CommandsCounter++) {
    463. 

  463. 						$thisfile_asf_scriptcommandobject['commands'][$CommandsCounter]['presentation_time']  = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 4));
    464. 

  464. 						$offset += 4;
    465. 

  465. 						$thisfile_asf_scriptcommandobject['commands'][$CommandsCounter]['type_index']         = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 2));
    466. 

  466. 						$offset += 2;
    467. 

  467. 

  468. 						$CommandTypeNameLength = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 2)) * 2; // 2 bytes per character
    469. 

  469. 						$offset += 2;
    470. 

  470. 						$thisfile_asf_scriptcommandobject['commands'][$CommandsCounter]['name'] = substr($ASFHeaderData, $offset, $CommandTypeNameLength);
    471. 

  471. 						$offset += $CommandTypeNameLength;
    472. 

  472. 					}
    473. 

  473. 					break;
    474. 

  474. 

  475. 				case GETID3_ASF_Marker_Object:
    476. 

  476. 					// Marker Object: (optional, one only)
    477. 

  477. 					// Field Name                   Field Type   Size (bits)
    478. 

  478. 					// Object ID                    GUID         128             // GUID for Marker object - GETID3_ASF_Marker_Object
    479. 

  479. 					// Object Size                  QWORD        64              // size of Marker object, including 48 bytes of Marker Object header
    480. 

  480. 					// Reserved                     GUID         128             // hardcoded: 4CFEDB20-75F6-11CF-9C0F-00A0C90349CB
    481. 

  481. 					// Markers Count                DWORD        32              // number of Marker structures in Marker Object
    482. 

  482. 					// Reserved                     WORD         16              // hardcoded: 0x0000
    483. 

  483. 					// Name Length                  WORD         16              // number of bytes in the Name field
    484. 

  484. 					// Name                         WCHAR        variable        // name of the Marker Object
    485. 

  485. 					// Markers                      array of:    variable        //
    486. 

  486. 					// * Offset                     QWORD        64              // byte offset into Data Object
    487. 

  487. 					// * Presentation Time          QWORD        64              // in 100-nanosecond units
    488. 

  488. 					// * Entry Length               WORD         16              // length in bytes of (Send Time + Flags + Marker Description Length + Marker Description + Padding)
    489. 

  489. 					// * Send Time                  DWORD        32              // in milliseconds
    490. 

  490. 					// * Flags                      DWORD        32              // hardcoded: 0x00000000
    491. 

  491. 					// * Marker Description Length  DWORD        32              // number of bytes in Marker Description field
    492. 

  492. 					// * Marker Description         WCHAR        variable        // array of Unicode characters - description of marker entry
    493. 

  493. 					// * Padding                    BYTESTREAM   variable        // optional padding bytes
    494. 

  494. 

  495. 					// shortcut
    496. 

  496. 					$thisfile_asf['marker_object'] = array();
    497. 

  497. 					$thisfile_asf_markerobject     = &$thisfile_asf['marker_object'];
    498. 

  498. 

  499. 					$thisfile_asf_markerobject['objectid']             = $NextObjectGUID;
    500. 

  500. 					$thisfile_asf_markerobject['objectid_guid']        = $NextObjectGUIDtext;
    501. 

  501. 					$thisfile_asf_markerobject['objectsize']           = $NextObjectSize;
    502. 

  502. 					$thisfile_asf_markerobject['reserved']             = substr($ASFHeaderData, $offset, 16);
    503. 

  503. 					$offset += 16;
    504. 

  504. 					$thisfile_asf_markerobject['reserved_guid']        = $this->BytestringToGUID($thisfile_asf_markerobject['reserved']);
    505. 

  505. 					if ($thisfile_asf_markerobject['reserved'] != $this->GUIDtoBytestring('4CFEDB20-75F6-11CF-9C0F-00A0C90349CB')) {
    506. 

  506. 						$ThisFileInfo['warning'][] = 'marker_object.reserved GUID {'.$this->BytestringToGUID($thisfile_asf_markerobject['reserved_1']).'} does not match expected "GETID3_ASF_Reserved_1" GUID {4CFEDB20-75F6-11CF-9C0F-00A0C90349CB}';
    507. 

  507. 						break;
    508. 

  508. 					}
    509. 

  509. 					$thisfile_asf_markerobject['markers_count'] = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 4));
    510. 

  510. 					$offset += 4;
    511. 

  511. 					$thisfile_asf_markerobject['reserved_2'] = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 2));
    512. 

  512. 					$offset += 2;
    513. 

  513. 					if ($thisfile_asf_markerobject['reserved_2'] != 0) {
    514. 

  514. 						$ThisFileInfo['warning'][] = 'marker_object.reserved_2 ('.getid3_lib::PrintHexBytes($thisfile_asf_markerobject['reserved_2']).') does not match expected value of "0"';
    515. 

  515. 						break;
    516. 

  516. 					}
    517. 

  517. 					$thisfile_asf_markerobject['name_length'] = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 2));
    518. 

  518. 					$offset += 2;
    519. 

  519. 					$thisfile_asf_markerobject['name'] = substr($ASFHeaderData, $offset, $thisfile_asf_markerobject['name_length']);
    520. 

  520. 					$offset += $thisfile_asf_markerobject['name_length'];
    521. 

  521. 					for ($MarkersCounter = 0; $MarkersCounter < $thisfile_asf_markerobject['markers_count']; $MarkersCounter++) {
    522. 

  522. 						$thisfile_asf_markerobject['markers'][$MarkersCounter]['offset']  = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 8));
    523. 

  523. 						$offset += 8;
    524. 

  524. 						$thisfile_asf_markerobject['markers'][$MarkersCounter]['presentation_time']         = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 8));
    525. 

  525. 						$offset += 8;
    526. 

  526. 						$thisfile_asf_markerobject['markers'][$MarkersCounter]['entry_length']              = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 2));
    527. 

  527. 						$offset += 2;
    528. 

  528. 						$thisfile_asf_markerobject['markers'][$MarkersCounter]['send_time']                 = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 4));
    529. 

  529. 						$offset += 4;
    530. 

  530. 						$thisfile_asf_markerobject['markers'][$MarkersCounter]['flags']                     = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 4));
    531. 

  531. 						$offset += 4;
    532. 

  532. 						$thisfile_asf_markerobject['markers'][$MarkersCounter]['marker_description_length'] = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 4));
    533. 

  533. 						$offset += 4;
    534. 

  534. 						$thisfile_asf_markerobject['markers'][$MarkersCounter]['marker_description']        = substr($ASFHeaderData, $offset, $thisfile_asf_markerobject['markers'][$MarkersCounter]['marker_description_length']);
    535. 

  535. 						$offset += $thisfile_asf_markerobject['markers'][$MarkersCounter]['marker_description_length'];
    536. 

  536. 						$PaddingLength = $thisfile_asf_markerobject['markers'][$MarkersCounter]['entry_length'] - 4 -  4 - 4 - $thisfile_asf_markerobject['markers'][$MarkersCounter]['marker_description_length'];
    537. 

  537. 						if ($PaddingLength > 0) {
    538. 

  538. 							$thisfile_asf_markerobject['markers'][$MarkersCounter]['padding']               = substr($ASFHeaderData, $offset, $PaddingLength);
    539. 

  539. 							$offset += $PaddingLength;
    540. 

  540. 						}
    541. 

  541. 					}
    542. 

  542. 					break;
    543. 

  543. 

  544. 				case GETID3_ASF_Bitrate_Mutual_Exclusion_Object:
    545. 

  545. 					// Bitrate Mutual Exclusion Object: (optional)
    546. 

  546. 					// Field Name                   Field Type   Size (bits)
    547. 

  547. 					// Object ID                    GUID         128             // GUID for Bitrate Mutual Exclusion object - GETID3_ASF_Bitrate_Mutual_Exclusion_Object
    548. 

  548. 					// Object Size                  QWORD        64              // size of Bitrate Mutual Exclusion object, including 42 bytes of Bitrate Mutual Exclusion Object header
    549. 

  549. 					// Exlusion Type                GUID         128             // nature of mutual exclusion relationship. one of: (GETID3_ASF_Mutex_Bitrate, GETID3_ASF_Mutex_Unknown)
    550. 

  550. 					// Stream Numbers Count         WORD         16              // number of video streams
    551. 

  551. 					// Stream Numbers               WORD         variable        // array of mutually exclusive video stream numbers. 1 <= valid <= 127
    552. 

  552. 

  553. 					// shortcut
    554. 

  554. 					$thisfile_asf['bitrate_mutual_exclusion_object'] = array();
    555. 

  555. 					$thisfile_asf_bitratemutualexclusionobject       = &$thisfile_asf['bitrate_mutual_exclusion_object'];
    556. 

  556. 

  557. 					$thisfile_asf_bitratemutualexclusionobject['objectid']             = $NextObjectGUID;
    558. 

  558. 					$thisfile_asf_bitratemutualexclusionobject['objectid_guid']        = $NextObjectGUIDtext;
    559. 

  559. 					$thisfile_asf_bitratemutualexclusionobject['objectsize']           = $NextObjectSize;
    560. 

  560. 					$thisfile_asf_bitratemutualexclusionobject['reserved']             = substr($ASFHeaderData, $offset, 16);
    561. 

  561. 					$thisfile_asf_bitratemutualexclusionobject['reserved_guid']        = $this->BytestringToGUID($thisfile_asf_bitratemutualexclusionobject['reserved']);
    562. 

  562. 					$offset += 16;
    563. 

  563. 					if (($thisfile_asf_bitratemutualexclusionobject['reserved'] != GETID3_ASF_Mutex_Bitrate) && ($thisfile_asf_bitratemutualexclusionobject['reserved'] != GETID3_ASF_Mutex_Unknown)) {
    564. 

  564. 						$ThisFileInfo['warning'][] = 'bitrate_mutual_exclusion_object.reserved GUID {'.$this->BytestringToGUID($thisfile_asf_bitratemutualexclusionobject['reserved']).'} does not match expected "GETID3_ASF_Mutex_Bitrate" GUID {'.$this->BytestringToGUID(GETID3_ASF_Mutex_Bitrate).'} or  "GETID3_ASF_Mutex_Unknown" GUID {'.$this->BytestringToGUID(GETID3_ASF_Mutex_Unknown).'}';
    565. 

  565. 						//return false;
    566. 

  566. 						break;
    567. 

  567. 					}
    568. 

  568. 					$thisfile_asf_bitratemutualexclusionobject['stream_numbers_count'] = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 2));
    569. 

  569. 					$offset += 2;
    570. 

  570. 					for ($StreamNumberCounter = 0; $StreamNumberCounter < $thisfile_asf_bitratemutualexclusionobject['stream_numbers_count']; $StreamNumberCounter++) {
    571. 

  571. 						$thisfile_asf_bitratemutualexclusionobject['stream_numbers'][$StreamNumberCounter] = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 2));
    572. 

  572. 						$offset += 2;
    573. 

  573. 					}
    574. 

  574. 					break;
    575. 

  575. 

  576. 				case GETID3_ASF_Error_Correction_Object:
    577. 

  577. 					// Error Correction Object: (optional, one only)
    578. 

  578. 					// Field Name                   Field Type   Size (bits)
    579. 

  579. 					// Object ID                    GUID         128             // GUID for Error Correction object - GETID3_ASF_Error_Correction_Object
    580. 

  580. 					// Object Size                  QWORD        64              // size of Error Correction object, including 44 bytes of Error Correction Object header
    581. 

  581. 					// Error Correction Type        GUID         128             // type of error correction. one of: (GETID3_ASF_No_Error_Correction, GETID3_ASF_Audio_Spread)
    582. 

  582. 					// Error Correction Data Length DWORD        32              // number of bytes in Error Correction Data field
    583. 

  583. 					// Error Correction Data        BYTESTREAM   variable        // structure depends on value of Error Correction Type field
    584. 

  584. 

  585. 					// shortcut
    586. 

  586. 					$thisfile_asf['error_correction_object'] = array();
    587. 

  587. 					$thisfile_asf_errorcorrectionobject      = &$thisfile_asf['error_correction_object'];
    588. 

  588. 

  589. 					$thisfile_asf_errorcorrectionobject['objectid']              = $NextObjectGUID;
    590. 

  590. 					$thisfile_asf_errorcorrectionobject['objectid_guid']         = $NextObjectGUIDtext;
    591. 

  591. 					$thisfile_asf_errorcorrectionobject['objectsize']            = $NextObjectSize;
    592. 

  592. 					$thisfile_asf_errorcorrectionobject['error_correction_type'] = substr($ASFHeaderData, $offset, 16);
    593. 

  593. 					$offset += 16;
    594. 

  594. 					$thisfile_asf_errorcorrectionobject['error_correction_guid'] = $this->BytestringToGUID($thisfile_asf_errorcorrectionobject['error_correction_type']);
    595. 

  595. 					$thisfile_asf_errorcorrectionobject['error_correction_data_length'] = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 4));
    596. 

  596. 					$offset += 4;
    597. 

  597. 					switch ($thisfile_asf_errorcorrectionobject['error_correction_type']) {
    598. 

  598. 						case GETID3_ASF_No_Error_Correction:
    599. 

  599. 							// should be no data, but just in case there is, skip to the end of the field
    600. 

  600. 							$offset += $thisfile_asf_errorcorrectionobject['error_correction_data_length'];
    601. 

  601. 							break;
    602. 

  602. 

  603. 						case GETID3_ASF_Audio_Spread:
    604. 

  604. 							// Field Name                   Field Type   Size (bits)
    605. 

  605. 							// Span                         BYTE         8               // number of packets over which audio will be spread.
    606. 

  606. 							// Virtual Packet Length        WORD         16              // size of largest audio payload found in audio stream
    607. 

  607. 							// Virtual Chunk Length         WORD         16              // size of largest audio payload found in audio stream
    608. 

  608. 							// Silence Data Length          WORD         16              // number of bytes in Silence Data field
    609. 

  609. 							// Silence Data                 BYTESTREAM   variable        // hardcoded: 0x00 * (Silence Data Length) bytes
    610. 

  610. 

  611. 							$thisfile_asf_errorcorrectionobject['span']                  = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 1));
    612. 

  612. 							$offset += 1;
    613. 

  613. 							$thisfile_asf_errorcorrectionobject['virtual_packet_length'] = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 2));
    614. 

  614. 							$offset += 2;
    615. 

  615. 							$thisfile_asf_errorcorrectionobject['virtual_chunk_length']  = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 2));
    616. 

  616. 							$offset += 2;
    617. 

  617. 							$thisfile_asf_errorcorrectionobject['silence_data_length']   = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 2));
    618. 

  618. 							$offset += 2;
    619. 

  619. 							$thisfile_asf_errorcorrectionobject['silence_data']          = substr($ASFHeaderData, $offset, $thisfile_asf_errorcorrectionobject['silence_data_length']);
    620. 

  620. 							$offset += $thisfile_asf_errorcorrectionobject['silence_data_length'];
    621. 

  621. 							break;
    622. 

  622. 

  623. 						default:
    624. 

  624. 							$ThisFileInfo['warning'][] = 'error_correction_object.error_correction_type GUID {'.$this->BytestringToGUID($thisfile_asf_errorcorrectionobject['reserved']).'} does not match expected "GETID3_ASF_No_Error_Correction" GUID {'.$this->BytestringToGUID(GETID3_ASF_No_Error_Correction).'} or  "GETID3_ASF_Audio_Spread" GUID {'.$this->BytestringToGUID(GETID3_ASF_Audio_Spread).'}';
    625. 

  625. 							//return false;
    626. 

  626. 							break;
    627. 

  627. 					}
    628. 

  628. 

  629. 					break;
    630. 

  630. 

  631. 				case GETID3_ASF_Content_Description_Object:
    632. 

  632. 					// Content Description Object: (optional, one only)
    633. 

  633. 					// Field Name                   Field Type   Size (bits)
    634. 

  634. 					// Object ID                    GUID         128             // GUID for Content Description object - GETID3_ASF_Content_Description_Object
    635. 

  635. 					// Object Size                  QWORD        64              // size of Content Description object, including 34 bytes of Content Description Object header
    636. 

  636. 					// Title Length                 WORD         16              // number of bytes in Title field
    637. 

  637. 					// Author Length                WORD         16              // number of bytes in Author field
    638. 

  638. 					// Copyright Length             WORD         16              // number of bytes in Copyright field
    639. 

  639. 					// Description Length           WORD         16              // number of bytes in Description field
    640. 

  640. 					// Rating Length                WORD         16              // number of bytes in Rating field
    641. 

  641. 					// Title                        WCHAR        16              // array of Unicode characters - Title
    642. 

  642. 					// Author                       WCHAR        16              // array of Unicode characters - Author
    643. 

  643. 					// Copyright                    WCHAR        16              // array of Unicode characters - Copyright
    644. 

  644. 					// Description                  WCHAR        16              // array of Unicode characters - Description
    645. 

  645. 					// Rating                       WCHAR        16              // array of Unicode characters - Rating
    646. 

  646. 

  647. 					// shortcut
    648. 

  648. 					$thisfile_asf['content_description_object'] = array();
    649. 

  649. 					$thisfile_asf_contentdescriptionobject      = &$thisfile_asf['content_description_object'];
    650. 

  650. 

  651. 					$thisfile_asf_contentdescriptionobject['objectid']              = $NextObjectGUID;
    652. 

  652. 					$thisfile_asf_contentdescriptionobject['objectid_guid']         = $NextObjectGUIDtext;
    653. 

  653. 					$thisfile_asf_contentdescriptionobject['objectsize']            = $NextObjectSize;
    654. 

  654. 					$thisfile_asf_contentdescriptionobject['title_length']          = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 2));
    655. 

  655. 					$offset += 2;
    656. 

  656. 					$thisfile_asf_contentdescriptionobject['author_length']         = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 2));
    657. 

  657. 					$offset += 2;
    658. 

  658. 					$thisfile_asf_contentdescriptionobject['copyright_length']      = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 2));
    659. 

  659. 					$offset += 2;
    660. 

  660. 					$thisfile_asf_contentdescriptionobject['description_length']    = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 2));
    661. 

  661. 					$offset += 2;
    662. 

  662. 					$thisfile_asf_contentdescriptionobject['rating_length']         = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 2));
    663. 

  663. 					$offset += 2;
    664. 

  664. 					$thisfile_asf_contentdescriptionobject['title']                 = substr($ASFHeaderData, $offset, $thisfile_asf_contentdescriptionobject['title_length']);
    665. 

  665. 					$offset += $thisfile_asf_contentdescriptionobject['title_length'];
    666. 

  666. 					$thisfile_asf_contentdescriptionobject['author']                = substr($ASFHeaderData, $offset, $thisfile_asf_contentdescriptionobject['author_length']);
    667. 

  667. 					$offset += $thisfile_asf_contentdescriptionobject['author_length'];
    668. 

  668. 					$thisfile_asf_contentdescriptionobject['copyright']             = substr($ASFHeaderData, $offset, $thisfile_asf_contentdescriptionobject['copyright_length']);
    669. 

  669. 					$offset += $thisfile_asf_contentdescriptionobject['copyright_length'];
    670. 

  670. 					$thisfile_asf_contentdescriptionobject['description']           = substr($ASFHeaderData, $offset, $thisfile_asf_contentdescriptionobject['description_length']);
    671. 

  671. 					$offset += $thisfile_asf_contentdescriptionobject['description_length'];
    672. 

  672. 					$thisfile_asf_contentdescriptionobject['rating']                = substr($ASFHeaderData, $offset, $thisfile_asf_contentdescriptionobject['rating_length']);
    673. 

  673. 					$offset += $thisfile_asf_contentdescriptionobject['rating_length'];
    674. 

  674. 

  675. 					$ASFcommentKeysToCopy = array('title'=>'title', 'author'=>'artist', 'copyright'=>'copyright', 'description'=>'comment', 'rating'=>'rating');
    676. 

  676. 					foreach ($ASFcommentKeysToCopy as $keytocopyfrom => $keytocopyto) {
    677. 

  677. 						if (!empty($thisfile_asf_contentdescriptionobject[$keytocopyfrom])) {
    678. 

  678. 							$thisfile_asf_comments[$keytocopyto][] = $this->TrimTerm($thisfile_asf_contentdescriptionobject[$keytocopyfrom]);
    679. 

  679. 						}
    680. 

  680. 					}
    681. 

  681. 					break;
    682. 

  682. 

  683. 				case GETID3_ASF_Extended_Content_Description_Object:
    684. 

  684. 					// Extended Content Description Object: (optional, one only)
    685. 

  685. 					// Field Name                   Field Type   Size (bits)
    686. 

  686. 					// Object ID                    GUID         128             // GUID for Extended Content Description object - GETID3_ASF_Extended_Content_Description_Object
    687. 

  687. 					// Object Size                  QWORD        64              // size of ExtendedContent Description object, including 26 bytes of Extended Content Description Object header
    688. 

  688. 					// Content Descriptors Count    WORD         16              // number of entries in Content Descriptors list
    689. 

  689. 					// Content Descriptors          array of:    variable        //
    690. 

  690. 					// * Descriptor Name Length     WORD         16              // size in bytes of Descriptor Name field
    691. 

  691. 					// * Descriptor Name            WCHAR        variable        // array of Unicode characters - Descriptor Name
    692. 

  692. 					// * Descriptor Value Data Type WORD         16              // Lookup array:
    693. 

  693. 																					// 0x0000 = Unicode String (variable length)
    694. 

  694. 																					// 0x0001 = BYTE array     (variable length)
    695. 

  695. 																					// 0x0002 = BOOL           (DWORD, 32 bits)
    696. 

  696. 																					// 0x0003 = DWORD          (DWORD, 32 bits)
    697. 

  697. 																					// 0x0004 = QWORD          (QWORD, 64 bits)
    698. 

  698. 																					// 0x0005 = WORD           (WORD,  16 bits)
    699. 

  699. 					// * Descriptor Value Length    WORD         16              // number of bytes stored in Descriptor Value field
    700. 

  700. 					// * Descriptor Value           variable     variable        // value for Content Descriptor
    701. 

  701. 

  702. 					// shortcut
    703. 

  703. 					$thisfile_asf['extended_content_description_object'] = array();
    704. 

  704. 					$thisfile_asf_extendedcontentdescriptionobject       = &$thisfile_asf['extended_content_description_object'];
    705. 

  705. 

  706. 					$thisfile_asf_extendedcontentdescriptionobject['objectid']                  = $NextObjectGUID;
    707. 

  707. 					$thisfile_asf_extendedcontentdescriptionobject['objectid_guid']             = $NextObjectGUIDtext;
    708. 

  708. 					$thisfile_asf_extendedcontentdescriptionobject['objectsize']                = $NextObjectSize;
    709. 

  709. 					$thisfile_asf_extendedcontentdescriptionobject['content_descriptors_count'] = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 2));
    710. 

  710. 					$offset += 2;
    711. 

  711. 					for ($ExtendedContentDescriptorsCounter = 0; $ExtendedContentDescriptorsCounter < $thisfile_asf_extendedcontentdescriptionobject['content_descriptors_count']; $ExtendedContentDescriptorsCounter++) {
    712. 

  712. 						// shortcut
    713. 

  713. 						$thisfile_asf_extendedcontentdescriptionobject['content_descriptors'][$ExtendedContentDescriptorsCounter] = array();
    714. 

  714. 						$thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current                                  = &$thisfile_asf_extendedcontentdescriptionobject['content_descriptors'][$ExtendedContentDescriptorsCounter];
    715. 

  715. 

  716. 						$thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['base_offset']  = $offset + 30;
    717. 

  717. 						$thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['name_length']  = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 2));
    718. 

  718. 						$offset += 2;
    719. 

  719. 						$thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['name']         = substr($ASFHeaderData, $offset, $thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['name_length']);
    720. 

  720. 						$offset += $thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['name_length'];
    721. 

  721. 						$thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['value_type']   = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 2));
    722. 

  722. 						$offset += 2;
    723. 

  723. 						$thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['value_length'] = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 2));
    724. 

  724. 						$offset += 2;
    725. 

  725. 						$thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['value']        = substr($ASFHeaderData, $offset, $thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['value_length']);
    726. 

  726. 						$offset += $thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['value_length'];
    727. 

  727. 						switch ($thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['value_type']) {
    728. 

  728. 							case 0x0000: // Unicode string
    729. 

  729. 								break;
    730. 

  730. 

  731. 							case 0x0001: // BYTE array
    732. 

  732. 								// do nothing
    733. 

  733. 								break;
    734. 

  734. 

  735. 							case 0x0002: // BOOL
    736. 

  736. 								$thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['value'] = (bool) getid3_lib::LittleEndian2Int($thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['value']);
    737. 

  737. 								break;
    738. 

  738. 

  739. 							case 0x0003: // DWORD
    740. 

  740. 							case 0x0004: // QWORD
    741. 

  741. 							case 0x0005: // WORD
    742. 

  742. 								$thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['value'] = getid3_lib::LittleEndian2Int($thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['value']);
    743. 

  743. 								break;
    744. 

  744. 

  745. 							default:
    746. 

  746. 								$ThisFileInfo['warning'][] = 'extended_content_description.content_descriptors.'.$ExtendedContentDescriptorsCounter.'.value_type is invalid ('.$thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['value_type'].')';
    747. 

  747. 								//return false;
    748. 

  748. 								break;
    749. 

  749. 						}
    750. 

  750. 						switch ($this->TrimConvert(strtolower($thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['name']))) {
    751. 

  751. 

  752. 							case 'wm/albumartist':
    753. 

  753. 							case 'artist':
    754. 

  754. 								// Note: not 'artist', that comes from 'author' tag
    755. 

  755. 								$thisfile_asf_comments['albumartist'] = array($this->TrimTerm($thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['value']));
    756. 

  756. 								break;
    757. 

  757. 

  758. 							case 'wm/albumtitle':
    759. 

  759. 							case 'album':
    760. 

  760. 								$thisfile_asf_comments['album']  = array($this->TrimTerm($thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['value']));
    761. 

  761. 								break;
    762. 

  762. 

  763. 							case 'wm/genre':
    764. 

  764. 							case 'genre':
    765. 

  765. 								$thisfile_asf_comments['genre'] = array($this->TrimTerm($thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['value']));
    766. 

  766. 								break;
    767. 

  767. 

  768. 							case 'wm/partofset':
    769. 

  769. 								$thisfile_asf_comments['partofset'] = array($this->TrimTerm($thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['value']));
    770. 

  770. 								break;
    771. 

  771. 

  772. 							case 'wm/tracknumber':
    773. 

  773. 							case 'tracknumber':
    774. 

  774. 								// be careful casting to int: casting unicode strings to int gives unexpected results (stops parsing at first non-numeric character)
    775. 

  775. 								$thisfile_asf_comments['track'] = array($this->TrimTerm($thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['value']));
    776. 

  776. 								foreach ($thisfile_asf_comments['track'] as $key => $value) {
    777. 

  777. 									if (preg_match('/^[0-9\x00]+$/', $value)) {
    778. 

  778. 										$thisfile_asf_comments['track'][$key] = intval(str_replace("\x00", '', $value));
    779. 

  779. 									}
    780. 

  780. 								}
    781. 

  781. 								break;
    782. 

  782. 

  783. 							case 'wm/track':
    784. 

  784. 								if (empty($thisfile_asf_comments['track'])) {
    785. 

  785. 									$thisfile_asf_comments['track'] = array(1 + $this->TrimConvert($thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['value']));
    786. 

  786. 								}
    787. 

  787. 								break;
    788. 

  788. 

  789. 							case 'wm/year':
    790. 

  790. 							case 'year':
    791. 

  791. 							case 'date':
    792. 

  792. 								$thisfile_asf_comments['year'] = array( $this->TrimTerm($thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['value']));
    793. 

  793. 								break;
    794. 

  794. 

  795. 							case 'wm/lyrics':
    796. 

  796. 							case 'lyrics':
    797. 

  797. 								$thisfile_asf_comments['lyrics'] = array($this->TrimTerm($thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['value']));
    798. 

  798. 								break;
    799. 

  799. 

  800. 							case 'isvbr':
    801. 

  801. 								if ($thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['value']) {
    802. 

  802. 									$thisfile_audio['bitrate_mode'] = 'vbr';
    803. 

  803. 									$thisfile_video['bitrate_mode'] = 'vbr';
    804. 

  804. 								}
    805. 

  805. 								break;
    806. 

  806. 

  807. 							case 'id3':
    808. 

  808. 								// id3v2 module might not be loaded
    809. 

  809. 								if (class_exists('getid3_id3v2')) {
    810. 

  810. 									$tempfile         = tempnam(GETID3_TEMP_DIR, 'getID3');
    811. 

  811. 									$tempfilehandle   = fopen($tempfile, "wb");
    812. 

  812. 									$tempThisfileInfo = array('encoding'=>$ThisFileInfo['encoding']);
    813. 

  813. 									fwrite($tempfilehandle, $thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['value']);
    814. 

  814. 									fclose($tempfilehandle);
    815. 

  815. 

  816. 									$tempfilehandle = fopen($tempfile, "rb");
    817. 

  817. 									$id3 = new getid3_id3v2($tempfilehandle, $tempThisfileInfo);
    818. 

  818. 									unset($id3);
    819. 

  819. 									fclose($tempfilehandle);
    820. 

  820. 									unlink($tempfile);
    821. 

  821. 

  822. 									$ThisFileInfo['id3v2'] = $tempThisfileInfo['id3v2'];
    823. 

  823. 									unset($tempThisfileInfo);
    824. 

  824. 								}
    825. 

  825. 								break;
    826. 

  826. 

  827. 							case 'wm/encodingtime':
    828. 

  828. 								$thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['encoding_time_unix'] = $this->FILETIMEtoUNIXtime($thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['value']);
    829. 

  829. 								$thisfile_asf_comments['encoding_time_unix'] = array($thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['encoding_time_unix']);
    830. 

  830. 								break;
    831. 

  831. 

  832. 							case 'wm/picture':
    833. 

  833. 								//typedef struct _WMPicture{
    834. 

  834. 								//  LPWSTR  pwszMIMEType;
    835. 

  835. 								//  BYTE  bPictureType;
    836. 

  836. 								//  LPWSTR  pwszDescription;
    837. 

  837. 								//  DWORD  dwDataLen;
    838. 

  838. 								//  BYTE*  pbData;
    839. 

  839. 								//} WM_PICTURE;
    840. 

  840. 

  841. 								$wm_picture_offset = 0;
    842. 

  842. 								$thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['image_type_id'] = getid3_lib::LittleEndian2Int(substr($thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['value'], $wm_picture_offset, 1));
    843. 

  843. 								$wm_picture_offset += 1;
    844. 

  844. 								$thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['image_type']    = $this->WMpictureTypeLookup($thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['image_type_id']);
    845. 

  845. 								$thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['image_size']    = getid3_lib::LittleEndian2Int(substr($thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['value'], $wm_picture_offset, 4));
    846. 

  846. 								$wm_picture_offset += 4;
    847. 

  847. 

  848. 								$thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['image_mime'] = '';
    849. 

  849. 								do {
    850. 

  850. 									$next_byte_pair = substr($thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['value'], $wm_picture_offset, 2);
    851. 

  851. 									$wm_picture_offset += 2;
    852. 

  852. 									$thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['image_mime'] .= $next_byte_pair;
    853. 

  853. 								} while ($next_byte_pair !== "\x00\x00");
    854. 

  854. 

  855. 								$thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['image_description'] = '';
    856. 

  856. 								do {
    857. 

  857. 									$next_byte_pair = substr($thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['value'], $wm_picture_offset, 2);
    858. 

  858. 									$wm_picture_offset += 2;
    859. 

  859. 									$thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['image_description'] .= $next_byte_pair;
    860. 

  860. 								} while ($next_byte_pair !== "\x00\x00");
    861. 

  861. 

  862. 								$thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['dataoffset'] = $wm_picture_offset;
    863. 

  863. 								$thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['data'] = substr($thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['value'], $wm_picture_offset);
    864. 

  864. 								unset($thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['value']);
    865. 

  865. 

  866. 								$imageinfo = array();
    867. 

  867. 								$thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['image_mime'] = '';
    868. 

  868. 								$imagechunkcheck = getid3_lib::GetDataImageSize($thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['data'], $imageinfo);
    869. 

  869. 								unset($imageinfo);
    870. 

  870. 								if (!empty($imagechunkcheck)) {
    871. 

  871. 									$thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['image_mime'] = image_type_to_mime_type($imagechunkcheck[2]);
    872. 

  872. 								}
    873. 

  873. 								if (!isset($thisfile_asf_comments['picture'])) {
    874. 

  874. 									$thisfile_asf_comments['picture'] = array();
    875. 

  875. 								}
    876. 

  876. 								$thisfile_asf_comments['picture'][] = array('data'=>$thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['data'], 'mime_type'=>$thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['image_mime']);
    877. 

  877. 								break;
    878. 

  878. 

  879. 							default:
    880. 

  880. 								switch ($thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['value_type']) {
    881. 

  881. 									case 0: // Unicode string
    882. 

  882. 										if (substr($this->TrimConvert($thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['name']), 0, 3) == 'WM/') {
    883. 

  883. 											$thisfile_asf_comments[str_replace('wm/', '', strtolower($this->TrimConvert($thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['name'])))] = array($this->TrimTerm($thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['value']));
    884. 

  884. 										}
    885. 

  885. 										break;
    886. 

  886. 

  887. 									case 1:
    888. 

  888. 										break;
    889. 

  889. 								}
    890. 

  890. 								break;
    891. 

  891. 						}
    892. 

  892. 

  893. 					}
    894. 

  894. 					break;
    895. 

  895. 

  896. 				case GETID3_ASF_Stream_Bitrate_Properties_Object:
    897. 

  897. 					// Stream Bitrate Properties Object: (optional, one only)
    898. 

  898. 					// Field Name                   Field Type   Size (bits)
    899. 

  899. 					// Object ID                    GUID         128             // GUID for Stream Bitrate Properties object - GETID3_ASF_Stream_Bitrate_Properties_Object
    900. 

  900. 					// Object Size                  QWORD        64              // size of Extended Content Description object, including 26 bytes of Stream Bitrate Properties Object header
    901. 

  901. 					// Bitrate Records Count        WORD         16              // number of records in Bitrate Records
    902. 

  902. 					// Bitrate Records              array of:    variable        //
    903. 

  903. 					// * Flags                      WORD         16              //
    904. 

  904. 					// * * Stream Number            bits         7  (0x007F)     // number of this stream
    905. 

  905. 					// * * Reserved                 bits         9  (0xFF80)     // hardcoded: 0
    906. 

  906. 					// * Average Bitrate            DWORD        32              // in bits per second
    907. 

  907. 

  908. 					// shortcut
    909. 

  909. 					$thisfile_asf['stream_bitrate_properties_object'] = array();
    910. 

  910. 					$thisfile_asf_streambitratepropertiesobject       = &$thisfile_asf['stream_bitrate_properties_object'];
    911. 

  911. 

  912. 					$thisfile_asf_streambitratepropertiesobject['objectid']                  = $NextObjectGUID;
    913. 

  913. 					$thisfile_asf_streambitratepropertiesobject['objectid_guid']             = $NextObjectGUIDtext;
    914. 

  914. 					$thisfile_asf_streambitratepropertiesobject['objectsize']                = $NextObjectSize;
    915. 

  915. 					$thisfile_asf_streambitratepropertiesobject['bitrate_records_count']     = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 2));
    916. 

  916. 					$offset += 2;
    917. 

  917. 					for ($BitrateRecordsCounter = 0; $BitrateRecordsCounter < $thisfile_asf_streambitratepropertiesobject['bitrate_records_count']; $BitrateRecordsCounter++) {
    918. 

  918. 						$thisfile_asf_streambitratepropertiesobject['bitrate_records'][$BitrateRecordsCounter]['flags_raw'] = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 2));
    919. 

  919. 						$offset += 2;
    920. 

  920. 						$thisfile_asf_streambitratepropertiesobject['bitrate_records'][$BitrateRecordsCounter]['flags']['stream_number'] = $thisfile_asf_streambitratepropertiesobject['bitrate_records'][$BitrateRecordsCounter]['flags_raw'] & 0x007F;
    921. 

  921. 						$thisfile_asf_streambitratepropertiesobject['bitrate_records'][$BitrateRecordsCounter]['bitrate'] = getid3_lib::LittleEndian2Int(substr($ASFHeaderData, $offset, 4));
    922. 

  922. 						$offset += 4;
    923. 

  923. 					}
    924. 

  924. 					break;
    925. 

  925. 

  926. 				case GETID3_ASF_Padding_Object:
    927. 

  927. 					// Padding Object: (optional)
    928. 

  928. 					// Field Name                   Field Type   Size (bits)
    929. 

  929. 					// Object ID                    GUID         128             // GUID for Padding object - GETID3_ASF_Padding_Object
    930. 

  930. 					// Object Size                  QWORD        64              // size of Padding object, including 24 bytes of ASF Padding Object header
    931. 

  931. 					// Padding Data                 BYTESTREAM   variable        // ignore
    932. 

  932. 

  933. 					// shortcut
    934. 

  934. 					$thisfile_asf['padding_object'] = array();
    935. 

  935. 					$thisfile_asf_paddingobject     = &$thisfile_asf['padding_object'];
    936. 

  936. 

  937. 					$thisfile_asf_paddingobject['objectid']                  = $NextObjectGUID;
    938. 

  938. 					$thisfile_asf_paddingobject['objectid_guid']             = $NextObjectGUIDtext;
    939. 

  939. 					$thisfile_asf_paddingobject['objectsize']                = $NextObjectSize;
    940. 

  940. 					$thisfile_asf_paddingobject['padding_length']            = $thisfile_asf_paddingobject['objectsize'] - 16 - 8;
    941. 

  941. 					$thisfile_asf_paddingobject['padding']                   = substr($ASFHeaderData, $offset, $thisfile_asf_paddingobject['padding_length']);
    942. 

  942. 					$offset += ($NextObjectSize - 16 - 8);
    943. 

  943. 					break;
    944. 

  944. 

  945. 				case GETID3_ASF_Extended_Content_Encryption_Object:
    946. 

  946. 				case GETID3_ASF_Content_Encryption_Object:
    947. 

  947. 					// WMA DRM - just ignore
    948. 

  948. 					$offset += ($NextObjectSize - 16 - 8);
    949. 

  949. 					break;
    950. 

  950. 

  951. 				default:
    952. 

  952. 					// Implementations shall ignore any standard or non-standard object that they do not know how to handle.
    953. 

  953. 					if ($this->GUIDname($NextObjectGUIDtext)) {
    954. 

  954. 						$ThisFileInfo['warning'][] = 'unhandled GUID "'.$this->GUIDname($NextObjectGUIDtext).'" {'.$NextObjectGUIDtext.'} in ASF header at offset '.($offset - 16 - 8);
    955. 

  955. 					} else {
    956. 

  956. 						$ThisFileInfo['warning'][] = 'unknown GUID {'.$NextObjectGUIDtext.'} in ASF header at offset '.($offset - 16 - 8);
    957. 

  957. 					}
    958. 

  958. 					$offset += ($NextObjectSize - 16 - 8);
    959. 

  959. 					break;
    960. 

  960. 			}
    961. 

  961. 		}
    962. 

  962. 		if (isset($thisfile_asf_streambitrateproperties['bitrate_records_count'])) {
    963. 

  963. 			$ASFbitrateAudio = 0;
    964. 

  964. 			$ASFbitrateVideo = 0;
    965. 

  965. 			for ($BitrateRecordsCounter = 0; $BitrateRecordsCounter < $thisfile_asf_streambitrateproperties['bitrate_records_count']; $BitrateRecordsCounter++) {
    966. 

  966. 				if (isset($thisfile_asf_codeclistobject['codec_entries'][$BitrateRecordsCounter])) {
    967. 

  967. 					switch ($thisfile_asf_codeclistobject['codec_entries'][$BitrateRecordsCounter]['type_raw']) {
    968. 

  968. 						case 1:
    969. 

  969. 							$ASFbitrateVideo += $thisfile_asf_streambitrateproperties['bitrate_records'][$BitrateRecordsCounter]['bitrate'];
    970. 

  970. 							break;
    971. 

  971. 

  972. 						case 2:
    973. 

  973. 							$ASFbitrateAudio += $thisfile_asf_streambitrateproperties['bitrate_records'][$BitrateRecordsCounter]['bitrate'];
    974. 

  974. 							break;
    975. 

  975. 

  976. 						default:
    977. 

  977. 							// do nothing
    978. 

  978. 							break;
    979. 

  979. 					}
    980. 

  980. 				}
    981. 

  981. 			}
    982. 

  982. 			if ($ASFbitrateAudio > 0) {
    983. 

  983. 				$thisfile_audio['bitrate'] = $ASFbitrateAudio;
    984. 

  984. 			}
    985. 

  985. 			if ($ASFbitrateVideo > 0) {
    986. 

  986. 				$thisfile_video['bitrate'] = $ASFbitrateVideo;
    987. 

  987. 			}
    988. 

  988. 		}
    989. 

  989. 		if (isset($thisfile_asf['stream_properties_object']) && is_array($thisfile_asf['stream_properties_object'])) {
    990. 

  990. 

  991. 			$thisfile_audio['bitrate'] = 0;
    992. 

  992. 			$thisfile_video['bitrate'] = 0;
    993. 

  993. 

  994. 			foreach ($thisfile_asf['stream_properties_object'] as $streamnumber => $streamdata) {
    995. 

  995. 

  996. 				switch ($streamdata['stream_type']) {
    997. 

  997. 					case GETID3_ASF_Audio_Media:
    998. 

  998. 						// Field Name                   Field Type   Size (bits)
    999. 

  999. 						// Codec ID / Format Tag        WORD         16              // unique ID of audio codec - defined as wFormatTag field of WAVEFORMATEX structure
    1000. 

  1000. 						// Number of Channels           WORD         16              // number of channels of audio - defined as nChannels field of WAVEFORMATEX structure
    1001. 

  1001. 						// Samples Per Second           DWORD        32              // in Hertz - defined as nSamplesPerSec field of WAVEFORMATEX structure
    1002. 

  1002. 						// Average number of Bytes/sec  DWORD        32              // bytes/sec of audio stream  - defined as nAvgBytesPerSec field of WAVEFORMATEX structure
    1003. 

  1003. 						// Block Alignment              WORD         16              // block size in bytes of audio codec - defined as nBlockAlign field of WAVEFORMATEX structure
    1004. 

  1004. 						// Bits per sample              WORD         16              // bits per sample of mono data. set to zero for variable bitrate codecs. defined as wBitsPerSample field of WAVEFORMATEX structure
    1005. 

  1005. 						// Codec Specific Data Size     WORD         16              // size in bytes of Codec Specific Data buffer - defined as cbSize field of WAVEFORMATEX structure
    1006. 

  1006. 						// Codec Specific Data          BYTESTREAM   variable        // array of codec-specific data bytes
    1007. 

  1007. 

  1008. 						// shortcut
    1009. 

  1009. 						$thisfile_asf['audio_media'][$streamnumber] = array();
    1010. 

  1010. 						$thisfile_asf_audiomedia_currentstream      = &$thisfile_asf['audio_media'][$streamnumber];
    1011. 

  1011. 

  1012. 						$audiomediaoffset = 0;
    1013. 

  1013. 

  1014. 						$thisfile_asf_audiomedia_currentstream = getid3_riff::RIFFparseWAVEFORMATex(substr($streamdata['type_specific_data'], $audiomediaoffset, 16));
    1015. 

  1015. 						$audiomediaoffset += 16;
    1016. 

  1016. 

  1017. 						$thisfile_audio['lossless'] = false;
    1018. 

  1018. 						switch ($thisfile_asf_audiomedia_currentstream['raw']['wFormatTag']) {
    1019. 

  1019. 							case 0x0001: // PCM
    1020. 

  1020. 							case 0x0163: // WMA9 Lossless
    1021. 

  1021. 								$thisfile_audio['lossless'] = true;
    1022. 

  1022. 								break;
    1023. 

  1023. 						}
    1024. 

  1024. 

  1025. 						if (!empty($thisfile_asf['stream_bitrate_properties_object']['bitrate_records'])) {
    1026. 

  1026. 							foreach ($thisfile_asf['stream_bitrate_properties_object']['bitrate_records'] as $dummy => $dataarray) {
    1027. 

  1027. 								if (isset($dataarray['flags']['stream_number']) && ($dataarray['flags']['stream_number'] == $streamnumber)) {
    1028. 

  1028. 									$thisfile_asf_audiomedia_currentstream['bitrate'] = $dataarray['bitrate'];
    1029. 

  1029. 									$thisfile_audio['bitrate'] += $dataarray['bitrate'];
    1030. 

  1030. 									break;
    1031. 

  1031. 								}
    1032. 

  1032. 							}
    1033. 

  1033. 						} else {
    1034. 

  1034. 							if (!empty($thisfile_asf_audiomedia_currentstream['bytes_sec'])) {
    1035. 

  1035. 								$thisfile_audio['bitrate'] += $thisfile_asf_audiomedia_currentstream['bytes_sec'] * 8;
    1036. 

  1036. 							} elseif (!empty($thisfile_asf_audiomedia_currentstream['bitrate'])) {
    1037. 

  1037. 								$thisfile_audio['bitrate'] += $thisfile_asf_audiomedia_currentstream['bitrate'];
    1038. 

  1038. 							}
    1039. 

  1039. 						}
    1040. 

  1040. 						$thisfile_audio['streams'][$streamnumber]                = $thisfile_asf_audiomedia_currentstream;
    1041. 

  1041. 						$thisfile_audio['streams'][$streamnumber]['wformattag']  = $thisfile_asf_audiomedia_currentstream['raw']['wFormatTag'];
    1042. 

  1042. 						$thisfile_audio['streams'][$streamnumber]['lossless']    = $thisfile_audio['lossless'];
    1043. 

  1043. 						$thisfile_audio['streams'][$streamnumber]['bitrate']     = $thisfile_audio['bitrate'];
    1044. 

  1044. 						$thisfile_audio['streams'][$streamnumber]['dataformat']  = 'wma';
    1045. 

  1045. 						unset($thisfile_audio['streams'][$streamnumber]['raw']);
    1046. 

  1046. 

  1047. 						$thisfile_asf_audiomedia_currentstream['codec_data_size'] = getid3_lib::LittleEndian2Int(substr($streamdata['type_specific_data'], $audiomediaoffset, 2));
    1048. 

  1048. 						$audiomediaoffset += 2;
    1049. 

  1049. 						$thisfile_asf_audiomedia_currentstream['codec_data']      = substr($streamdata['type_specific_data'], $audiomediaoffset, $thisfile_asf_audiomedia_currentstream['codec_data_size']);
    1050. 

  1050. 						$audiomediaoffset += $thisfile_asf_audiomedia_currentstream['codec_data_size'];
    1051. 

  1051. 

  1052. 						break;
    1053. 

  1053. 

  1054. 					case GETID3_ASF_Video_Media:
    1055. 

  1055. 						// Field Name                   Field Type   Size (bits)
    1056. 

  1056. 						// Encoded Image Width          DWORD        32              // width of image in pixels
    1057. 

  1057. 						// Encoded Image Height         DWORD        32              // height of image in pixels
    1058. 

  1058. 						// Reserved Flags               BYTE         8               // hardcoded: 0x02
    1059. 

  1059. 						// Format Data Size             WORD         16              // size of Format Data field in bytes
    1060. 

  1060. 						// Format Data                  array of:    variable        //
    1061. 

  1061. 						// * Format Data Size           DWORD        32              // number of bytes in Format Data field, in bytes - defined as biSize field of BITMAPINFOHEADER structure
    1062. 

  1062. 						// * Image Width                LONG         32              // width of encoded image in pixels - defined as biWidth field of BITMAPINFOHEADER structure
    1063. 

  1063. 						// * Image Height               LONG         32              // height of encoded image in pixels - defined as biHeight field of BITMAPINFOHEADER structure
    1064. 

  1064. 						// * Reserved                   WORD         16              // hardcoded: 0x0001 - defined as biPlanes field of BITMAPINFOHEADER structure
    1065. 

  1065. 						// * Bits Per Pixel Count       WORD         16              // bits per pixel - defined as biBitCount field of BITMAPINFOHEADER structure
    1066. 

  1066. 						// * Compression ID             FOURCC       32              // fourcc of video codec - defined as biCompression field of BITMAPINFOHEADER structure
    1067. 

  1067. 						// * Image Size                 DWORD        32              // image size in bytes - defined as biSizeImage field of BITMAPINFOHEADER structure
    1068. 

  1068. 						// * Horizontal Pixels / Meter  DWORD        32              // horizontal resolution of target device in pixels per meter - defined as biXPelsPerMeter field of BITMAPINFOHEADER structure
    1069. 

  1069. 						// * Vertical Pixels / Meter    DWORD        32              // vertical resolution of target device in pixels per meter - defined as biYPelsPerMeter field of BITMAPINFOHEADER structure
    1070. 

  1070. 						// * Colors Used Count          DWORD        32              // number of color indexes in the color table that are actually used - defined as biClrUsed field of BITMAPINFOHEADER structure
    1071. 

  1071. 						// * Important Colors Count     DWORD        32              // number of color index required for displaying bitmap. if zero, all colors are required. defined as biClrImportant field of BITMAPINFOHEADER structure
    1072. 

  1072. 						// * Codec Specific Data        BYTESTREAM   variable        // array of codec-specific data bytes
    1073. 

  1073. 

  1074. 						// shortcut
    1075. 

  1075. 						$thisfile_asf['video_media'][$streamnumber] = array();
    1076. 

  1076. 						$thisfile_asf_videomedia_currentstream      = &$thisfile_asf['video_media'][$streamnumber];
    1077. 

  1077. 

  1078. 						$videomediaoffset = 0;
    1079. 

  1079. 						$thisfile_asf_videomedia_currentstream['image_width']                     = getid3_lib::LittleEndian2Int(substr($streamdata['type_specific_data'], $videomediaoffset, 4));
    1080. 

  1080. 						$videomediaoffset += 4;
    1081. 

  1081. 						$thisfile_asf_videomedia_currentstream['image_height']                    = getid3_lib::LittleEndian2Int(substr($streamdata['type_specific_data'], $videomediaoffset, 4));
    1082. 

  1082. 						$videomediaoffset += 4;
    1083. 

  1083. 						$thisfile_asf_videomedia_currentstream['flags']                           = getid3_lib::LittleEndian2Int(substr($streamdata['type_specific_data'], $videomediaoffset, 1));
    1084. 

  1084. 						$videomediaoffset += 1;
    1085. 

  1085. 						$thisfile_asf_videomedia_currentstream['format_data_size']                = getid3_lib::LittleEndian2Int(substr($streamdata['type_specific_data'], $videomediaoffset, 2));
    1086. 

  1086. 						$videomediaoffset += 2;
    1087. 

  1087. 						$thisfile_asf_videomedia_currentstream['format_data']['format_data_size'] = getid3_lib::LittleEndian2Int(substr($streamdata['type_specific_data'], $videomediaoffset, 4));
    1088. 

  1088. 						$videomediaoffset += 4;
    1089. 

  1089. 						$thisfile_asf_videomedia_currentstream['format_data']['image_width']      = getid3_lib::LittleEndian2Int(substr($streamdata['type_specific_data'], $videomediaoffset, 4));
    1090. 

  1090. 						$videomediaoffset += 4;
    1091. 

  1091. 						$thisfile_asf_videomedia_currentstream['format_data']['image_height']     = getid3_lib::LittleEndian2Int(substr($streamdata['type_specific_data'], $videomediaoffset, 4));
    1092. 

  1092. 						$videomediaoffset += 4;
    1093. 

  1093. 						$thisfile_asf_videomedia_currentstream['format_data']['reserved']         = getid3_lib::LittleEndian2Int(substr($streamdata['type_specific_data'], $videomediaoffset, 2));
    1094. 

  1094. 						$videomediaoffset += 2;
    1095. 

  1095. 						$thisfile_asf_videomedia_currentstream['format_data']['bits_per_pixel']   = getid3_lib::LittleEndian2Int(substr($streamdata['type_specific_data'], $videomediaoffset, 2));
    1096. 

  1096. 						$videomediaoffset += 2;
    1097. 

  1097. 						$thisfile_asf_videomedia_currentstream['format_data']['codec_fourcc']     = substr($streamdata['type_specific_data'], $videomediaoffset, 4);
    1098. 

  1098. 						$videomediaoffset += 4;
    1099. 

  1099. 						$thisfile_asf_videomedia_currentstream['format_data']['image_size']       = getid3_lib::LittleEndian2Int(substr($streamdata['type_specific_data'], $videomediaoffset, 4));
    1100. 

  1100. 						$videomediaoffset += 4;
    1101. 

  1101. 						$thisfile_asf_videomedia_currentstream['format_data']['horizontal_pels']  = getid3_lib::LittleEndian2Int(substr($streamdata['type_specific_data'], $videomediaoffset, 4));
    1102. 

  1102. 						$videomediaoffset += 4;
    1103. 

  1103. 						$thisfile_asf_videomedia_currentstream['format_data']['vertical_pels']    = getid3_lib::LittleEndian2Int(substr($streamdata['type_specific_data'], $videomediaoffset, 4));
    1104. 

  1104. 						$videomediaoffset += 4;
    1105. 

  1105. 						$thisfile_asf_videomedia_currentstream['format_data']['colors_used']      = getid3_lib::LittleEndian2Int(substr($streamdata['type_specific_data'], $videomediaoffset, 4));
    1106. 

  1106. 						$videomediaoffset += 4;
    1107. 

  1107. 						$thisfile_asf_videomedia_currentstream['format_data']['colors_important'] = getid3_lib::LittleEndian2Int(substr($streamdata['type_specific_data'], $videomediaoffset, 4));
    1108. 

  1108. 						$videomediaoffset += 4;
    1109. 

  1109. 						$thisfile_asf_videomedia_currentstream['format_data']['codec_data']       = substr($streamdata['type_specific_data'], $videomediaoffset);
    1110. 

  1110. 

  1111. 						if (!empty($thisfile_asf['stream_bitrate_properties_object']['bitrate_records'])) {
    1112. 

  1112. 							foreach ($thisfile_asf['stream_bitrate_properties_object']['bitrate_records'] as $dummy => $dataarray) {
    1113. 

  1113. 								if (isset($dataarray['flags']['stream_number']) && ($dataarray['flags']['stream_number'] == $streamnumber)) {
    1114. 

  1114. 									$thisfile_asf_videomedia_currentstream['bitrate'] = $dataarray['bitrate'];
    1115. 

  1115. 									$thisfile_video['streams'][$streamnumber]['bitrate'] = $dataarray['bitrate'];
    1116. 

  1116. 									$thisfile_video['bitrate'] += $dataarray['bitrate'];
    1117. 

  1117. 									break;
    1118. 

  1118. 								}
    1119. 

  1119. 							}
    1120. 

  1120. 						}
    1121. 

  1121. 

  1122. 						$thisfile_asf_videomedia_currentstream['format_data']['codec'] = getid3_riff::RIFFfourccLookup($thisfile_asf_videomedia_currentstream['format_data']['codec_fourcc']);
    1123. 

  1123. 

  1124. 						$thisfile_video['streams'][$streamnumber]['fourcc']          = $thisfile_asf_videomedia_currentstream['format_data']['codec_fourcc'];
    1125. 

  1125. 						$thisfile_video['streams'][$streamnumber]['codec']           = $thisfile_asf_videomedia_currentstream['format_data']['codec'];
    1126. 

  1126. 						$thisfile_video['streams'][$streamnumber]['resolution_x']    = $thisfile_asf_videomedia_currentstream['image_width'];
    1127. 

  1127. 						$thisfile_video['streams'][$streamnumber]['resolution_y']    = $thisfile_asf_videomedia_currentstream['image_height'];
    1128. 

  1128. 						$thisfile_video['streams'][$streamnumber]['bits_per_sample'] = $thisfile_asf_videomedia_currentstream['format_data']['bits_per_pixel'];
    1129. 

  1129. 						break;
    1130. 

  1130. 

  1131. 					default:
    1132. 

  1132. 						break;
    1133. 

  1133. 				}
    1134. 

  1134. 			}
    1135. 

  1135. 		}
    1136. 

  1136. 

  1137. 		while (ftell($fd) < $ThisFileInfo['avdataend']) {
    1138. 

  1138. 			$NextObjectDataHeader = fread($fd, 24);
    1139. 

  1139. 			$offset = 0;
    1140. 

  1140. 			$NextObjectGUID = substr($NextObjectDataHeader, 0, 16);
    1141. 

  1141. 			$offset += 16;
    1142. 

  1142. 			$NextObjectGUIDtext = $this->BytestringToGUID($NextObjectGUID);
    1143. 

  1143. 			$NextObjectSize = getid3_lib::LittleEndian2Int(substr($NextObjectDataHeader, $offset, 8));
    1144. 

  1144. 			$offset += 8;
    1145. 

  1145. 

  1146. 			switch ($NextObjectGUID) {
    1147. 

  1147. 				case GETID3_ASF_Data_Object:
    1148. 

  1148. 					// Data Object: (mandatory, one only)
    1149. 

  1149. 					// Field Name                       Field Type   Size (bits)
    1150. 

  1150. 					// Object ID                        GUID         128             // GUID for Data object - GETID3_ASF_Data_Object
    1151. 

  1151. 					// Object Size                      QWORD        64              // size of Data object, including 50 bytes of Data Object header. may be 0 if FilePropertiesObject.BroadcastFlag == 1
    1152. 

  1152. 					// File ID                          GUID         128             // unique identifier. identical to File ID field in Header Object
    1153. 

  1153. 					// Total Data Packets               QWORD        64              // number of Data Packet entries in Data Object. invalid if FilePropertiesObject.BroadcastFlag == 1
    1154. 

  1154. 					// Reserved                         WORD         16              // hardcoded: 0x0101
    1155. 

  1155. 

  1156. 					// shortcut
    1157. 

  1157. 					$thisfile_asf['data_object'] = array();
    1158. 

  1158. 					$thisfile_asf_dataobject     = &$thisfile_asf['data_object'];
    1159. 

  1159. 

  1160. 					$DataObjectData = $NextObjectDataHeader.fread($fd, 50 - 24);
    1161. 

  1161. 					$offset = 24;
    1162. 

  1162. 

  1163. 					$thisfile_asf_dataobject['objectid']           = $NextObjectGUID;
    1164. 

  1164. 					$thisfile_asf_dataobject['objectid_guid']      = $NextObjectGUIDtext;
    1165. 

  1165. 					$thisfile_asf_dataobject['objectsize']         = $NextObjectSize;
    1166. 

  1166. 

  1167. 					$thisfile_asf_dataobject['fileid']             = substr($DataObjectData, $offset, 16);
    1168. 

  1168. 					$offset += 16;
    1169. 

  1169. 					$thisfile_asf_dataobject['fileid_guid']        = $this->BytestringToGUID($thisfile_asf_dataobject['fileid']);
    1170. 

  1170. 					$thisfile_asf_dataobject['total_data_packets'] = getid3_lib::LittleEndian2Int(substr($DataObjectData, $offset, 8));
    1171. 

  1171. 					$offset += 8;
    1172. 

  1172. 					$thisfile_asf_dataobject['reserved']           = getid3_lib::LittleEndian2Int(substr($DataObjectData, $offset, 2));
    1173. 

  1173. 					$offset += 2;
    1174. 

  1174. 					if ($thisfile_asf_dataobject['reserved'] != 0x0101) {
    1175. 

  1175. 						$ThisFileInfo['warning'][] = 'data_object.reserved ('.getid3_lib::PrintHexBytes($thisfile_asf_dataobject['reserved']).') does not match expected value of "0x0101"';
    1176. 

  1176. 						//return false;
    1177. 

  1177. 						break;
    1178. 

  1178. 					}
    1179. 

  1179. 

  1180. 					// Data Packets                     array of:    variable        //
    1181. 

  1181. 					// * Error Correction Flags         BYTE         8               //
    1182. 

  1182. 					// * * Error Correction Data Length bits         4               // if Error Correction Length Type == 00, size of Error Correction Data in bytes, else hardcoded: 0000
    1183. 

  1183. 					// * * Opaque Data Present          bits         1               //
    1184. 

  1184. 					// * * Error Correction Length Type bits         2               // number of bits for size of the error correction data. hardcoded: 00
    1185. 

  1185. 					// * * Error Correction Present     bits         1               // If set, use Opaque Data Packet structure, else use Payload structure
    1186. 

  1186. 					// * Error Correction Data
    1187. 

  1187. 

  1188. 					$ThisFileInfo['avdataoffset'] = ftell($fd);
    1189. 

  1189. 					fseek($fd, ($thisfile_asf_dataobject['objectsize'] - 50), SEEK_CUR); // skip actual audio/video data
    1190. 

  1190. 					$ThisFileInfo['avdataend'] = ftell($fd);
    1191. 

  1191. 					break;
    1192. 

  1192. 

  1193. 				case GETID3_ASF_Simple_Index_Object:
    1194. 

  1194. 					// Simple Index Object: (optional, recommended, one per video stream)
    1195. 

  1195. 					// Field Name                       Field Type   Size (bits)
    1196. 

  1196. 					// Object ID                        GUID         128             // GUID for Simple Index object - GETID3_ASF_Data_Object
    1197. 

  1197. 					// Object Size                      QWORD        64              // size of Simple Index object, including 56 bytes of Simple Index Object header
    1198. 

  1198. 					// File ID                          GUID         128             // unique identifier. may be zero or identical to File ID field in Data Object and Header Object
    1199. 

  1199. 					// Index Entry Time Interval        QWORD        64              // interval between index entries in 100-nanosecond units
    1200. 

  1200. 					// Maximum Packet Count             DWORD        32              // maximum packet count for all index entries
    1201. 

  1201. 					// Index Entries Count              DWORD        32              // number of Index Entries structures
    1202. 

  1202. 					// Index Entries                    array of:    variable        //
    1203. 

  1203. 					// * Packet Number                  DWORD        32              // number of the Data Packet associated with this index entry
    1204. 

  1204. 					// * Packet Count                   WORD         16              // number of Data Packets to sent at this index entry
    1205. 

  1205. 

  1206. 					// shortcut
    1207. 

  1207. 					$thisfile_asf['simple_index_object'] = array();
    1208. 

  1208. 					$thisfile_asf_simpleindexobject      = &$thisfile_asf['simple_index_object'];
    1209. 

  1209. 

  1210. 					$SimpleIndexObjectData = $NextObjectDataHeader.fread($fd, 56 - 24);
    1211. 

  1211. 					$offset = 24;
    1212. 

  1212. 

  1213. 					$thisfile_asf_simpleindexobject['objectid']                  = $NextObjectGUID;
    1214. 

  1214. 					$thisfile_asf_simpleindexobject['objectid_guid']             = $NextObjectGUIDtext;
    1215. 

  1215. 					$thisfile_asf_simpleindexobject['objectsize']                = $NextObjectSize;
    1216. 

  1216. 

  1217. 					$thisfile_asf_simpleindexobject['fileid']                    =                  substr($SimpleIndexObjectData, $offset, 16);
    1218. 

  1218. 					$offset += 16;
    1219. 

  1219. 					$thisfile_asf_simpleindexobject['fileid_guid']               = $this->BytestringToGUID($thisfile_asf_simpleindexobject['fileid']);
    1220. 

  1220. 					$thisfile_asf_simpleindexobject['index_entry_time_interval'] = getid3_lib::LittleEndian2Int(substr($SimpleIndexObjectData, $offset, 8));
    1221. 

  1221. 					$offset += 8;
    1222. 

  1222. 					$thisfile_asf_simpleindexobject['maximum_packet_count']      = getid3_lib::LittleEndian2Int(substr($SimpleIndexObjectData, $offset, 4));
    1223. 

  1223. 					$offset += 4;
    1224. 

  1224. 					$thisfile_asf_simpleindexobject['index_entries_count']       = getid3_lib::LittleEndian2Int(substr($SimpleIndexObjectData, $offset, 4));
    1225. 

  1225. 					$offset += 4;
    1226. 

  1226. 

  1227. 					$IndexEntriesData = $SimpleIndexObjectData.fread($fd, 6 * $thisfile_asf_simpleindexobject['index_entries_count']);
    1228. 

  1228. 					for ($IndexEntriesCounter = 0; $IndexEntriesCounter < $thisfile_asf_simpleindexobject['index_entries_count']; $IndexEntriesCounter++) {
    1229. 

  1229. 						$thisfile_asf_simpleindexobject['index_entries'][$IndexEntriesCounter]['packet_number'] = getid3_lib::LittleEndian2Int(substr($IndexEntriesData, $offset, 4));
    1230. 

  1230. 						$offset += 4;
    1231. 

  1231. 						$thisfile_asf_simpleindexobject['index_entries'][$IndexEntriesCounter]['packet_count']  = getid3_lib::LittleEndian2Int(substr($IndexEntriesData, $offset, 4));
    1232. 

  1232. 						$offset += 2;
    1233. 

  1233. 					}
    1234. 

  1234. 

  1235. 					break;
    1236. 

  1236. 

  1237. 				case GETID3_ASF_Index_Object:
    1238. 

  1238. 					// 6.2 ASF top-level Index Object (optional but recommended when appropriate, 0 or 1)
    1239. 

  1239. 					// Field Name                       Field Type   Size (bits)
    1240. 

  1240. 					// Object ID                        GUID         128             // GUID for the Index Object - GETID3_ASF_Index_Object
    1241. 

  1241. 					// Object Size                      QWORD        64              // Specifies the size, in bytes, of the Index Object, including at least 34 bytes of Index Object header
    1242. 

  1242. 					// Index Entry Time Interval        DWORD        32              // Specifies the time interval between each index entry in ms.
    1243. 

  1243. 					// Index Specifiers Count           WORD         16              // Specifies the number of Index Specifiers structures in this Index Object.
    1244. 

  1244. 					// Index Blocks Count               DWORD        32              // Specifies the number of Index Blocks structures in this Index Object.
    1245. 

  1245. 

  1246. 					// Index Entry Time Interval        DWORD        32              // Specifies the time interval between index entries in milliseconds.  This value cannot be 0.
    1247. 

  1247. 					// Index Specifiers Count           WORD         16              // Specifies the number of entries in the Index Specifiers list.  Valid values are 1 and greater.
    1248. 

  1248. 					// Index Specifiers                 array of:    varies          //
    1249. 

  1249. 					// * Stream Number                  WORD         16              // Specifies the stream number that the Index Specifiers refer to. Valid values are between 1 and 127.
    1250. 

  1250. 					// * Index Type                     WORD         16              // Specifies Index Type values as follows:
    1251. 

  1251. 																					//   1 = Nearest Past Data Packet - indexes point to the data packet whose presentation time is closest to the index entry time.
    1252. 

  1252. 																					//   2 = Nearest Past Media Object - indexes point to the closest data packet containing an entire object or first fragment of an object.
    1253. 

  1253. 																					//   3 = Nearest Past Cleanpoint. - indexes point to the closest data packet containing an entire object (or first fragment of an object) that has the Cleanpoint Flag set.
    1254. 

  1254. 																					//   Nearest Past Cleanpoint is the most common type of index.
    1255. 

  1255. 					// Index Entry Count                DWORD        32              // Specifies the number of Index Entries in the block.
    1256. 

  1256. 					// * Block Positions                QWORD        varies          // Specifies a list of byte offsets of the beginnings of the blocks relative to the beginning of the first Data Packet (i.e., the beginning of the Data Object + 50 bytes). The number of entries in this list is specified by the value of the Index Specifiers Count field. The order of those byte offsets is tied to the order in which Index Specifiers are listed.
    1257. 

  1257. 					// * Index Entries                  array of:    varies          //
    1258. 

  1258. 					// * * Offsets                      DWORD        varies          // An offset value of 0xffffffff indicates an invalid offset value
    1259. 

  1259. 

  1260. 					// shortcut
    1261. 

  1261. 					$thisfile_asf['asf_index_object'] = array();
    1262. 

  1262. 					$thisfile_asf_asfindexobject      = &$thisfile_asf['asf_index_object'];
    1263. 

  1263. 

  1264. 					$ASFIndexObjectData = $NextObjectDataHeader.fread($fd, 34 - 24);
    1265. 

  1265. 					$offset = 24;
    1266. 

  1266. 

  1267. 					$thisfile_asf_asfindexobject['objectid']                  = $NextObjectGUID;
    1268. 

  1268. 					$thisfile_asf_asfindexobject['objectid_guid']             = $NextObjectGUIDtext;
    1269. 

  1269. 					$thisfile_asf_asfindexobject['objectsize']                = $NextObjectSize;
    1270. 

  1270. 

  1271. 					$thisfile_asf_asfindexobject['entry_time_interval']       = getid3_lib::LittleEndian2Int(substr($ASFIndexObjectData, $offset, 4));
    1272. 

  1272. 					$offset += 4;
    1273. 

  1273. 					$thisfile_asf_asfindexobject['index_specifiers_count']    = getid3_lib::LittleEndian2Int(substr($ASFIndexObjectData, $offset, 2));
    1274. 

  1274. 					$offset += 2;
    1275. 

  1275. 					$thisfile_asf_asfindexobject['index_blocks_count']        = getid3_lib::LittleEndian2Int(substr($ASFIndexObjectData, $offset, 4));
    1276. 

  1276. 					$offset += 4;
    1277. 

  1277. 

  1278. 					$ASFIndexObjectData .= fread($fd, 4 * $thisfile_asf_asfindexobject['index_specifiers_count']);
    1279. 

  1279. 					for ($IndexSpecifiersCounter = 0; $IndexSpecifiersCounter < $thisfile_asf_asfindexobject['index_specifiers_count']; $IndexSpecifiersCounter++) {
    1280. 

  1280. 						$IndexSpecifierStreamNumber = getid3_lib::LittleEndian2Int(substr($ASFIndexObjectData, $offset, 2));
    1281. 

  1281. 						$offset += 2;
    1282. 

  1282. 						$thisfile_asf_asfindexobject['index_specifiers'][$IndexSpecifiersCounter]['stream_number']   = $IndexSpecifierStreamNumber;
    1283. 

  1283. 						$thisfile_asf_asfindexobject['index_specifiers'][$IndexSpecifiersCounter]['index_type']      = getid3_lib::LittleEndian2Int(substr($ASFIndexObjectData, $offset, 2));
    1284. 

  1284. 						$offset += 2;
    1285. 

  1285. 						$thisfile_asf_asfindexobject['index_specifiers'][$IndexSpecifiersCounter]['index_type_text'] = $this->ASFIndexObjectIndexTypeLookup($thisfile_asf_asfindexobject['index_specifiers'][$IndexSpecifiersCounter]['index_type']);
    1286. 

  1286. 					}
    1287. 

  1287. 

  1288. 					$ASFIndexObjectData .= fread($fd, 4);
    1289. 

  1289. 					$thisfile_asf_asfindexobject['index_entry_count'] = getid3_lib::LittleEndian2Int(substr($ASFIndexObjectData, $offset, 4));
    1290. 

  1290. 					$offset += 4;
    1291. 

  1291. 

  1292. 					$ASFIndexObjectData .= fread($fd, 8 * $thisfile_asf_asfindexobject['index_specifiers_count']);
    1293. 

  1293. 					for ($IndexSpecifiersCounter = 0; $IndexSpecifiersCounter < $thisfile_asf_asfindexobject['index_specifiers_count']; $IndexSpecifiersCounter++) {
    1294. 

  1294. 						$thisfile_asf_asfindexobject['block_positions'][$IndexSpecifiersCounter] = getid3_lib::LittleEndian2Int(substr($ASFIndexObjectData, $offset, 8));
    1295. 

  1295. 						$offset += 8;
    1296. 

  1296. 					}
    1297. 

  1297. 

  1298. 					$ASFIndexObjectData .= fread($fd, 4 * $thisfile_asf_asfindexobject['index_specifiers_count'] * $thisfile_asf_asfindexobject['index_entry_count']);
    1299. 

  1299. 					for ($IndexEntryCounter = 0; $IndexEntryCounter < $thisfile_asf_asfindexobject['index_entry_count']; $IndexEntryCounter++) {
    1300. 

  1300. 						for ($IndexSpecifiersCounter = 0; $IndexSpecifiersCounter < $thisfile_asf_asfindexobject['index_specifiers_count']; $IndexSpecifiersCounter++) {
    1301. 

  1301. 							$thisfile_asf_asfindexobject['offsets'][$IndexSpecifiersCounter][$IndexEntryCounter] = getid3_lib::LittleEndian2Int(substr($ASFIndexObjectData, $offset, 4));
    1302. 

  1302. 							$offset += 4;
    1303. 

  1303. 						}
    1304. 

  1304. 					}
    1305. 

  1305. 					break;
    1306. 

  1306. 

  1307. 

  1308. 				default:
    1309. 

  1309. 					// Implementations shall ignore any standard or non-standard object that they do not know how to handle.
    1310. 

  1310. 					if ($this->GUIDname($NextObjectGUIDtext)) {
    1311. 

  1311. 						$ThisFileInfo['warning'][] = 'unhandled GUID "'.$this->GUIDname($NextObjectGUIDtext).'" {'.$NextObjectGUIDtext.'} in ASF body at offset '.($offset - 16 - 8);
    1312. 

  1312. 					} else {
    1313. 

  1313. 						$ThisFileInfo['warning'][] = 'unknown GUID {'.$NextObjectGUIDtext.'} in ASF body at offset '.(ftell($fd) - 16 - 8);
    1314. 

  1314. 					}
    1315. 

  1315. 					fseek($fd, ($NextObjectSize - 16 - 8), SEEK_CUR);
    1316. 

  1316. 					break;
    1317. 

  1317. 			}
    1318. 

  1318. 		}
    1319. 

  1319. 

  1320. 		if (isset($thisfile_asf_codeclistobject['codec_entries']) && is_array($thisfile_asf_codeclistobject['codec_entries'])) {
    1321. 

  1321. 			foreach ($thisfile_asf_codeclistobject['codec_entries'] as $streamnumber => $streamdata) {
    1322. 

  1322. 				switch ($streamdata['information']) {
    1323. 

  1323. 					case 'WMV1':
    1324. 

  1324. 					case 'WMV2':
    1325. 

  1325. 					case 'WMV3':
    1326. 

  1326. 					case 'MSS1':
    1327. 

  1327. 					case 'MSS2':
    1328. 

  1328. 					case 'WMVA':
    1329. 

  1329. 					case 'WVC1':
    1330. 

  1330. 					case 'WMVP':
    1331. 

  1331. 					case 'WVP2':
    1332. 

  1332. 						$thisfile_video['dataformat'] = 'wmv';
    1333. 

  1333. 						$ThisFileInfo['mime_type']    = 'video/x-ms-wmv';
    1334. 

  1334. 						break;
    1335. 

  1335. 

  1336. 					case 'MP42':
    1337. 

  1337. 					case 'MP43':
    1338. 

  1338. 					case 'MP4S':
    1339. 

  1339. 					case 'mp4s':
    1340. 

  1340. 						$thisfile_video['dataformat'] = 'asf';
    1341. 

  1341. 						$ThisFileInfo['mime_type']    = 'video/x-ms-asf';
    1342. 

  1342. 						break;
    1343. 

  1343. 

  1344. 					default:
    1345. 

  1345. 						switch ($streamdata['type_raw']) {
    1346. 

  1346. 							case 1:
    1347. 

  1347. 								if (strstr($this->TrimConvert($streamdata['name']), 'Windows Media')) {
    1348. 

  1348. 									$thisfile_video['dataformat'] = 'wmv';
    1349. 

  1349. 									if ($ThisFileInfo['mime_type'] == 'video/x-ms-asf') {
    1350. 

  1350. 										$ThisFileInfo['mime_type'] = 'video/x-ms-wmv';
    1351. 

  1351. 									}
    1352. 

  1352. 								}
    1353. 

  1353. 								break;
    1354. 

  1354. 

  1355. 							case 2:
    1356. 

  1356. 								if (strstr($this->TrimConvert($streamdata['name']), 'Windows Media')) {
    1357. 

  1357. 									$thisfile_audio['dataformat'] = 'wma';
    1358. 

  1358. 									if ($ThisFileInfo['mime_type'] == 'video/x-ms-asf') {
    1359. 

  1359. 										$ThisFileInfo['mime_type'] = 'audio/x-ms-wma';
    1360. 

  1360. 									}
    1361. 

  1361. 								}
    1362. 

  1362. 								break;
    1363. 

  1363. 

  1364. 						}
    1365. 

  1365. 						break;
    1366. 

  1366. 				}
    1367. 

  1367. 			}
    1368. 

  1368. 		}
    1369. 

  1369. 

  1370. 		switch (isset($thisfile_audio['codec']) ? $thisfile_audio['codec'] : '') {
    1371. 

  1371. 			case 'MPEG Layer-3':
    1372. 

  1372. 				$thisfile_audio['dataformat'] = 'mp3';
    1373. 

  1373. 				break;
    1374. 

  1374. 

  1375. 			default:
    1376. 

  1376. 				break;
    1377. 

  1377. 		}
    1378. 

  1378. 

  1379. 		if (isset($thisfile_asf_codeclistobject['codec_entries'])) {
    1380. 

  1380. 			foreach ($thisfile_asf_codeclistobject['codec_entries'] as $streamnumber => $streamdata) {
    1381. 

  1381. 				switch ($streamdata['type_raw']) {
    1382. 

  1382. 

  1383. 					case 1: // video
    1384. 

  1384. 						$thisfile_video['encoder'] = $this->TrimConvert($thisfile_asf_codeclistobject['codec_entries'][$streamnumber]['name']);
    1385. 

  1385. 						break;
    1386. 

  1386. 

  1387. 					case 2: // audio
    1388. 

  1388. 						$thisfile_audio['encoder'] = $this->TrimConvert($thisfile_asf_codeclistobject['codec_entries'][$streamnumber]['name']);
    1389. 

  1389. 

  1390. 						// AH 2003-10-01
    1391. 

  1391. 						$thisfile_audio['encoder_options'] = $this->TrimConvert($thisfile_asf_codeclistobject['codec_entries'][0]['description']);
    1392. 

  1392. 

  1393. 						$thisfile_audio['codec']   = $thisfile_audio['encoder'];
    1394. 

  1394. 						break;
    1395. 

  1395. 

  1396. 					default:
    1397. 

  1397. 						$ThisFileInfo['warning'][] = 'Unknown streamtype: [codec_list_object][codec_entries]['.$streamnumber.'][type_raw] == '.$streamdata['type_raw'];
    1398. 

  1398. 						break;
    1399. 

  1399. 

  1400. 				}
    1401. 

  1401. 			}
    1402. 

  1402. 		}
    1403. 

  1403. 

  1404. 		if (isset($ThisFileInfo['audio'])) {
    1405. 

  1405. 			$thisfile_audio['lossless']           = (isset($thisfile_audio['lossless'])           ? $thisfile_audio['lossless']           : false);
    1406. 

  1406. 			$thisfile_audio['dataformat']         = (!empty($thisfile_audio['dataformat'])        ? $thisfile_audio['dataformat']         : 'asf');
    1407. 

  1407. 		}
    1408. 

  1408. 		if (!empty($thisfile_video['dataformat'])) {
    1409. 

  1409. 			$thisfile_video['lossless']           = (isset($thisfile_audio['lossless'])           ? $thisfile_audio['lossless']           : false);
    1410. 

  1410. 			$thisfile_video['pixel_aspect_ratio'] = (isset($thisfile_audio['pixel_aspect_ratio']) ? $thisfile_audio['pixel_aspect_ratio'] : (float) 1);
    1411. 

  1411. 			$thisfile_video['dataformat']         = (!empty($thisfile_video['dataformat'])        ? $thisfile_video['dataformat']         : 'asf');
    1412. 

  1412. 		}
    1413. 

  1413. 		if (!empty($thisfile_video['streams'])) {
    1414. 

  1414. 			$thisfile_video['streams']['resolution_x'] = 0;
    1415. 

  1415. 			$thisfile_video['streams']['resolution_y'] = 0;
    1416. 

  1416. 			foreach ($thisfile_video['streams'] as $key => $valuearray) {
    1417. 

  1417. 				if (($valuearray['resolution_x'] > $thisfile_video['streams']['resolution_x']) || ($valuearray['resolution_y'] > $thisfile_video['streams']['resolution_y'])) {
    1418. 

  1418. 					$thisfile_video['resolution_x'] = $valuearray['resolution_x'];
    1419. 

  1419. 					$thisfile_video['resolution_y'] = $valuearray['resolution_y'];
    1420. 

  1420. 				}
    1421. 

  1421. 			}
    1422. 

  1422. 		}
    1423. 

  1423. 		$ThisFileInfo['bitrate'] = (isset($thisfile_audio['bitrate']) ? $thisfile_audio['bitrate'] : 0) + (isset($thisfile_video['bitrate']) ? $thisfile_video['bitrate'] : 0);
    1424. 

  1424. 

  1425. 		if ((!isset($ThisFileInfo['playtime_seconds']) || ($ThisFileInfo['playtime_seconds'] <= 0)) && ($ThisFileInfo['bitrate'] > 0)) {
    1426. 

  1426. 			$ThisFileInfo['playtime_seconds'] = ($ThisFileInfo['filesize'] - $ThisFileInfo['avdataoffset']) / ($ThisFileInfo['bitrate'] / 8);
    1427. 

  1427. 		}
    1428. 

  1428. 

  1429. 		return true;
    1430. 

  1430. 	}
    1431. 

  1431. 

  1432. 	static function ASFCodecListObjectTypeLookup($CodecListType) {
    1433. 

  1433. 		static $ASFCodecListObjectTypeLookup = array();
    1434. 

  1434. 		if (empty($ASFCodecListObjectTypeLookup)) {
    1435. 

  1435. 			$ASFCodecListObjectTypeLookup[0x0001] = 'Video Codec';
    1436. 

  1436. 			$ASFCodecListObjectTypeLookup[0x0002] = 'Audio Codec';
    1437. 

  1437. 			$ASFCodecListObjectTypeLookup[0xFFFF] = 'Unknown Codec';
    1438. 

  1438. 		}
    1439. 

  1439. 

  1440. 		return (isset($ASFCodecListObjectTypeLookup[$CodecListType]) ? $ASFCodecListObjectTypeLookup[$CodecListType] : 'Invalid Codec Type');
    1441. 

  1441. 	}
    1442. 

  1442. 

  1443. 	static function KnownGUIDs() {
    1444. 

  1444. 		static $GUIDarray = array();
    1445. 

  1445. 		if (empty($GUIDarray)) {
    1446. 

  1446. 			$GUIDarray['GETID3_ASF_Extended_Stream_Properties_Object']   = '14E6A5CB-C672-4332-8399-A96952065B5A';
    1447. 

  1447. 			$GUIDarray['GETID3_ASF_Padding_Object']                      = '1806D474-CADF-4509-A4BA-9AABCB96AAE8';
    1448. 

  1448. 			$GUIDarray['GETID3_ASF_Payload_Ext_Syst_Pixel_Aspect_Ratio'] = '1B1EE554-F9EA-4BC8-821A-376B74E4C4B8';
    1449. 

  1449. 			$GUIDarray['GETID3_ASF_Script_Command_Object']               = '1EFB1A30-0B62-11D0-A39B-00A0C90348F6';
    1450. 

  1450. 			$GUIDarray['GETID3_ASF_No_Error_Correction']                 = '20FB5700-5B55-11CF-A8FD-00805F5C442B';
    1451. 

  1451. 			$GUIDarray['GETID3_ASF_Content_Branding_Object']             = '2211B3FA-BD23-11D2-B4B7-00A0C955FC6E';
    1452. 

  1452. 			$GUIDarray['GETID3_ASF_Content_Encryption_Object']           = '2211B3FB-BD23-11D2-B4B7-00A0C955FC6E';
    1453. 

  1453. 			$GUIDarray['GETID3_ASF_Digital_Signature_Object']            = '2211B3FC-BD23-11D2-B4B7-00A0C955FC6E';
    1454. 

  1454. 			$GUIDarray['GETID3_ASF_Extended_Content_Encryption_Object']  = '298AE614-2622-4C17-B935-DAE07EE9289C';
    1455. 

  1455. 			$GUIDarray['GETID3_ASF_Simple_Index_Object']                 = '33000890-E5B1-11CF-89F4-00A0C90349CB';
    1456. 

  1456. 			$GUIDarray['GETID3_ASF_Degradable_JPEG_Media']               = '35907DE0-E415-11CF-A917-00805F5C442B';
    1457. 

  1457. 			$GUIDarray['GETID3_ASF_Payload_Extension_System_Timecode']   = '399595EC-8667-4E2D-8FDB-98814CE76C1E';
    1458. 

  1458. 			$GUIDarray['GETID3_ASF_Binary_Media']                        = '3AFB65E2-47EF-40F2-AC2C-70A90D71D343';
    1459. 

  1459. 			$GUIDarray['GETID3_ASF_Timecode_Index_Object']               = '3CB73FD0-0C4A-4803-953D-EDF7B6228F0C';
    1460. 

  1460. 			$GUIDarray['GETID3_ASF_Metadata_Library_Object']             = '44231C94-9498-49D1-A141-1D134E457054';
    1461. 

  1461. 			$GUIDarray['GETID3_ASF_Reserved_3']                          = '4B1ACBE3-100B-11D0-A39B-00A0C90348F6';
    1462. 

  1462. 			$GUIDarray['GETID3_ASF_Reserved_4']                          = '4CFEDB20-75F6-11CF-9C0F-00A0C90349CB';
    1463. 

  1463. 			$GUIDarray['GETID3_ASF_Command_Media']                       = '59DACFC0-59E6-11D0-A3AC-00A0C90348F6';
    1464. 

  1464. 			$GUIDarray['GETID3_ASF_Header_Extension_Object']             = '5FBF03B5-A92E-11CF-8EE3-00C00C205365';
    1465. 

  1465. 			$GUIDarray['GETID3_ASF_Media_Object_Index_Parameters_Obj']   = '6B203BAD-3F11-4E84-ACA8-D7613DE2CFA7';
    1466. 

  1466. 			$GUIDarray['GETID3_ASF_Header_Object']                       = '75B22630-668E-11CF-A6D9-00AA0062CE6C';
    1467. 

  1467. 			$GUIDarray['GETID3_ASF_Content_Description_Object']          = '75B22633-668E-11CF-A6D9-00AA0062CE6C';
    1468. 

  1468. 			$GUIDarray['GETID3_ASF_Error_Correction_Object']             = '75B22635-668E-11CF-A6D9-00AA0062CE6C';
    1469. 

  1469. 			$GUIDarray['GETID3_ASF_Data_Object']                         = '75B22636-668E-11CF-A6D9-00AA0062CE6C';
    1470. 

  1470. 			$GUIDarray['GETID3_ASF_Web_Stream_Media_Subtype']            = '776257D4-C627-41CB-8F81-7AC7FF1C40CC';
    1471. 

  1471. 			$GUIDarray['GETID3_ASF_Stream_Bitrate_Properties_Object']    = '7BF875CE-468D-11D1-8D82-006097C9A2B2';
    1472. 

  1472. 			$GUIDarray['GETID3_ASF_Language_List_Object']                = '7C4346A9-EFE0-4BFC-B229-393EDE415C85';
    1473. 

  1473. 			$GUIDarray['GETID3_ASF_Codec_List_Object']                   = '86D15240-311D-11D0-A3A4-00A0C90348F6';
    1474. 

  1474. 			$GUIDarray['GETID3_ASF_Reserved_2']                          = '86D15241-311D-11D0-A3A4-00A0C90348F6';
    1475. 

  1475. 			$GUIDarray['GETID3_ASF_File_Properties_Object']              = '8CABDCA1-A947-11CF-8EE4-00C00C205365';
    1476. 

  1476. 			$GUIDarray['GETID3_ASF_File_Transfer_Media']                 = '91BD222C-F21C-497A-8B6D-5AA86BFC0185';
    1477. 

  1477. 			$GUIDarray['GETID3_ASF_Old_RTP_Extension_Data']              = '96800C63-4C94-11D1-837B-0080C7A37F95';
    1478. 

  1478. 			$GUIDarray['GETID3_ASF_Advanced_Mutual_Exclusion_Object']    = 'A08649CF-4775-4670-8A16-6E35357566CD';
    1479. 

  1479. 			$GUIDarray['GETID3_ASF_Bandwidth_Sharing_Object']            = 'A69609E6-517B-11D2-B6AF-00C04FD908E9';
    1480. 

  1480. 			$GUIDarray['GETID3_ASF_Reserved_1']                          = 'ABD3D211-A9BA-11cf-8EE6-00C00C205365';
    1481. 

  1481. 			$GUIDarray['GETID3_ASF_Bandwidth_Sharing_Exclusive']         = 'AF6060AA-5197-11D2-B6AF-00C04FD908E9';
    1482. 

  1482. 			$GUIDarray['GETID3_ASF_Bandwidth_Sharing_Partial']           = 'AF6060AB-5197-11D2-B6AF-00C04FD908E9';
    1483. 

  1483. 			$GUIDarray['GETID3_ASF_JFIF_Media']                          = 'B61BE100-5B4E-11CF-A8FD-00805F5C442B';
    1484. 

  1484. 			$GUIDarray['GETID3_ASF_Stream_Properties_Object']            = 'B7DC0791-A9B7-11CF-8EE6-00C00C205365';
    1485. 

  1485. 			$GUIDarray['GETID3_ASF_Video_Media']                         = 'BC19EFC0-5B4D-11CF-A8FD-00805F5C442B';
    1486. 

  1486. 			$GUIDarray['GETID3_ASF_Audio_Spread']                        = 'BFC3CD50-618F-11CF-8BB2-00AA00B4E220';
    1487. 

  1487. 			$GUIDarray['GETID3_ASF_Metadata_Object']                     = 'C5F8CBEA-5BAF-4877-8467-AA8C44FA4CCA';
    1488. 

  1488. 			$GUIDarray['GETID3_ASF_Payload_Ext_Syst_Sample_Duration']    = 'C6BD9450-867F-4907-83A3-C77921B733AD';
    1489. 

  1489. 			$GUIDarray['GETID3_ASF_Group_Mutual_Exclusion_Object']       = 'D1465A40-5A79-4338-B71B-E36B8FD6C249';
    1490. 

  1490. 			$GUIDarray['GETID3_ASF_Extended_Content_Description_Object'] = 'D2D0A440-E307-11D2-97F0-00A0C95EA850';
    1491. 

  1491. 			$GUIDarray['GETID3_ASF_Stream_Prioritization_Object']        = 'D4FED15B-88D3-454F-81F0-ED5C45999E24';
    1492. 

  1492. 			$GUIDarray['GETID3_ASF_Payload_Ext_System_Content_Type']     = 'D590DC20-07BC-436C-9CF7-F3BBFBF1A4DC';
    1493. 

  1493. 			$GUIDarray['GETID3_ASF_Old_File_Properties_Object']          = 'D6E229D0-35DA-11D1-9034-00A0C90349BE';
    1494. 

  1494. 			$GUIDarray['GETID3_ASF_Old_ASF_Header_Object']               = 'D6E229D1-35DA-11D1-9034-00A0C90349BE';
    1495. 

  1495. 			$GUIDarray['GETID3_ASF_Old_ASF_Data_Object']                 = 'D6E229D2-35DA-11D1-9034-00A0C90349BE';
    1496. 

  1496. 			$GUIDarray['GETID3_ASF_Index_Object']                        = 'D6E229D3-35DA-11D1-9034-00A0C90349BE';
    1497. 

  1497. 			$GUIDarray['GETID3_ASF_Old_Stream_Properties_Object']        = 'D6E229D4-35DA-11D1-9034-00A0C90349BE';
    1498. 

  1498. 			$GUIDarray['GETID3_ASF_Old_Content_Description_Object']      = 'D6E229D5-35DA-11D1-9034-00A0C90349BE';
    1499. 

  1499. 			$GUIDarray['GETID3_ASF_Old_Script_Command_Object']           = 'D6E229D6-35DA-11D1-9034-00A0C90349BE';
    1500. 

  1500. 			$GUIDarray['GETID3_ASF_Old_Marker_Object']                   = 'D6E229D7-35DA-11D1-9034-00A0C90349BE';
    1501. 

  1501. 			$GUIDarray['GETID3_ASF_Old_Component_Download_Object']       = 'D6E229D8-35DA-11D1-9034-00A0C90349BE';
    1502. 

  1502. 			$GUIDarray['GETID3_ASF_Old_Stream_Group_Object']             = 'D6E229D9-35DA-11D1-9034-00A0C90349BE';
    1503. 

  1503. 			$GUIDarray['GETID3_ASF_Old_Scalable_Object']                 = 'D6E229DA-35DA-11D1-9034-00A0C90349BE';
    1504. 

  1504. 			$GUIDarray['GETID3_ASF_Old_Prioritization_Object']           = 'D6E229DB-35DA-11D1-9034-00A0C90349BE';
    1505. 

  1505. 			$GUIDarray['GETID3_ASF_Bitrate_Mutual_Exclusion_Object']     = 'D6E229DC-35DA-11D1-9034-00A0C90349BE';
    1506. 

  1506. 			$GUIDarray['GETID3_ASF_Old_Inter_Media_Dependency_Object']   = 'D6E229DD-35DA-11D1-9034-00A0C90349BE';
    1507. 

  1507. 			$GUIDarray['GETID3_ASF_Old_Rating_Object']                   = 'D6E229DE-35DA-11D1-9034-00A0C90349BE';
    1508. 

  1508. 			$GUIDarray['GETID3_ASF_Index_Parameters_Object']             = 'D6E229DF-35DA-11D1-9034-00A0C90349BE';
    1509. 

  1509. 			$GUIDarray['GETID3_ASF_Old_Color_Table_Object']              = 'D6E229E0-35DA-11D1-9034-00A0C90349BE';
    1510. 

  1510. 			$GUIDarray['GETID3_ASF_Old_Language_List_Object']            = 'D6E229E1-35DA-11D1-9034-00A0C90349BE';
    1511. 

  1511. 			$GUIDarray['GETID3_ASF_Old_Audio_Media']                     = 'D6E229E2-35DA-11D1-9034-00A0C90349BE';
    1512. 

  1512. 			$GUIDarray['GETID3_ASF_Old_Video_Media']                     = 'D6E229E3-35DA-11D1-9034-00A0C90349BE';
    1513. 

  1513. 			$GUIDarray['GETID3_ASF_Old_Image_Media']                     = 'D6E229E4-35DA-11D1-9034-00A0C90349BE';
    1514. 

  1514. 			$GUIDarray['GETID3_ASF_Old_Timecode_Media']                  = 'D6E229E5-35DA-11D1-9034-00A0C90349BE';
    1515. 

  1515. 			$GUIDarray['GETID3_ASF_Old_Text_Media']                      = 'D6E229E6-35DA-11D1-9034-00A0C90349BE';
    1516. 

  1516. 			$GUIDarray['GETID3_ASF_Old_MIDI_Media']                      = 'D6E229E7-35DA-11D1-9034-00A0C90349BE';
    1517. 

  1517. 			$GUIDarray['GETID3_ASF_Old_Command_Media']                   = 'D6E229E8-35DA-11D1-9034-00A0C90349BE';
    1518. 

  1518. 			$GUIDarray['GETID3_ASF_Old_No_Error_Concealment']            = 'D6E229EA-35DA-11D1-9034-00A0C90349BE';
    1519. 

  1519. 			$GUIDarray['GETID3_ASF_Old_Scrambled_Audio']                 = 'D6E229EB-35DA-11D1-9034-00A0C90349BE';
    1520. 

  1520. 			$GUIDarray['GETID3_ASF_Old_No_Color_Table']                  = 'D6E229EC-35DA-11D1-9034-00A0C90349BE';
    1521. 

  1521. 			$GUIDarray['GETID3_ASF_Old_SMPTE_Time']                      = 'D6E229ED-35DA-11D1-9034-00A0C90349BE';
    1522. 

  1522. 			$GUIDarray['GETID3_ASF_Old_ASCII_Text']                      = 'D6E229EE-35DA-11D1-9034-00A0C90349BE';
    1523. 

  1523. 			$GUIDarray['GETID3_ASF_Old_Unicode_Text']                    = 'D6E229EF-35DA-11D1-9034-00A0C90349BE';
    1524. 

  1524. 			$GUIDarray['GETID3_ASF_Old_HTML_Text']                       = 'D6E229F0-35DA-11D1-9034-00A0C90349BE';
    1525. 

  1525. 			$GUIDarray['GETID3_ASF_Old_URL_Command']                     = 'D6E229F1-35DA-11D1-9034-00A0C90349BE';
    1526. 

  1526. 			$GUIDarray['GETID3_ASF_Old_Filename_Command']                = 'D6E229F2-35DA-11D1-9034-00A0C90349BE';
    1527. 

  1527. 			$GUIDarray['GETID3_ASF_Old_ACM_Codec']                       = 'D6E229F3-35DA-11D1-9034-00A0C90349BE';
    1528. 

  1528. 			$GUIDarray['GETID3_ASF_Old_VCM_Codec']                       = 'D6E229F4-35DA-11D1-9034-00A0C90349BE';
    1529. 

  1529. 			$GUIDarray['GETID3_ASF_Old_QuickTime_Codec']                 = 'D6E229F5-35DA-11D1-9034-00A0C90349BE';
    1530. 

  1530. 			$GUIDarray['GETID3_ASF_Old_DirectShow_Transform_Filter']     = 'D6E229F6-35DA-11D1-9034-00A0C90349BE';
    1531. 

  1531. 			$GUIDarray['GETID3_ASF_Old_DirectShow_Rendering_Filter']     = 'D6E229F7-35DA-11D1-9034-00A0C90349BE';
    1532. 

  1532. 			$GUIDarray['GETID3_ASF_Old_No_Enhancement']                  = 'D6E229F8-35DA-11D1-9034-00A0C90349BE';
    1533. 

  1533. 			$GUIDarray['GETID3_ASF_Old_Unknown_Enhancement_Type']        = 'D6E229F9-35DA-11D1-9034-00A0C90349BE';
    1534. 

  1534. 			$GUIDarray['GETID3_ASF_Old_Temporal_Enhancement']            = 'D6E229FA-35DA-11D1-9034-00A0C90349BE';
    1535. 

  1535. 			$GUIDarray['GETID3_ASF_Old_Spatial_Enhancement']             = 'D6E229FB-35DA-11D1-9034-00A0C90349BE';
    1536. 

  1536. 			$GUIDarray['GETID3_ASF_Old_Quality_Enhancement']             = 'D6E229FC-35DA-11D1-9034-00A0C90349BE';
    1537. 

  1537. 			$GUIDarray['GETID3_ASF_Old_Number_of_Channels_Enhancement']  = 'D6E229FD-35DA-11D1-9034-00A0C90349BE';
    1538. 

  1538. 			$GUIDarray['GETID3_ASF_Old_Frequency_Response_Enhancement']  = 'D6E229FE-35DA-11D1-9034-00A0C90349BE';
    1539. 

  1539. 			$GUIDarray['GETID3_ASF_Old_Media_Object']                    = 'D6E229FF-35DA-11D1-9034-00A0C90349BE';
    1540. 

  1540. 			$GUIDarray['GETID3_ASF_Mutex_Language']                      = 'D6E22A00-35DA-11D1-9034-00A0C90349BE';
    1541. 

  1541. 			$GUIDarray['GETID3_ASF_Mutex_Bitrate']                       = 'D6E22A01-35DA-11D1-9034-00A0C90349BE';
    1542. 

  1542. 			$GUIDarray['GETID3_ASF_Mutex_Unknown']                       = 'D6E22A02-35DA-11D1-9034-00A0C90349BE';
    1543. 

  1543. 			$GUIDarray['GETID3_ASF_Old_ASF_Placeholder_Object']          = 'D6E22A0E-35DA-11D1-9034-00A0C90349BE';
    1544. 

  1544. 			$GUIDarray['GETID3_ASF_Old_Data_Unit_Extension_Object']      = 'D6E22A0F-35DA-11D1-9034-00A0C90349BE';
    1545. 

  1545. 			$GUIDarray['GETID3_ASF_Web_Stream_Format']                   = 'DA1E6B13-8359-4050-B398-388E965BF00C';
    1546. 

  1546. 			$GUIDarray['GETID3_ASF_Payload_Ext_System_File_Name']        = 'E165EC0E-19ED-45D7-B4A7-25CBD1E28E9B';
    1547. 

  1547. 			$GUIDarray['GETID3_ASF_Marker_Object']                       = 'F487CD01-A951-11CF-8EE6-00C00C205365';
    1548. 

  1548. 			$GUIDarray['GETID3_ASF_Timecode_Index_Parameters_Object']    = 'F55E496D-9797-4B5D-8C8B-604DFE9BFB24';
    1549. 

  1549. 			$GUIDarray['GETID3_ASF_Audio_Media']                         = 'F8699E40-5B4D-11CF-A8FD-00805F5C442B';
    1550. 

  1550. 			$GUIDarray['GETID3_ASF_Media_Object_Index_Object']           = 'FEB103F8-12AD-4C64-840F-2A1D2F7AD48C';
    1551. 

  1551. 			$GUIDarray['GETID3_ASF_Alt_Extended_Content_Encryption_Obj'] = 'FF889EF1-ADEE-40DA-9E71-98704BB928CE';
    1552. 

  1552. 		}
    1553. 

  1553. 		return $GUIDarray;
    1554. 

  1554. 	}
    1555. 

  1555. 

  1556. 	static function GUIDname($GUIDstring) {
    1557. 

  1557. 		static $GUIDarray = array();
    1558. 

  1558. 		if (empty($GUIDarray)) {
    1559. 

  1559. 			$GUIDarray = getid3_asf::KnownGUIDs();
    1560. 

  1560. 		}
    1561. 

  1561. 		return array_search($GUIDstring, $GUIDarray);
    1562. 

  1562. 	}
    1563. 

  1563. 

  1564. 	static function ASFIndexObjectIndexTypeLookup($id) {
    1565. 

  1565. 		static $ASFIndexObjectIndexTypeLookup = array();
    1566. 

  1566. 		if (empty($ASFIndexObjectIndexTypeLookup)) {
    1567. 

  1567. 			$ASFIndexObjectIndexTypeLookup[1] = 'Nearest Past Data Packet';
    1568. 

  1568. 			$ASFIndexObjectIndexTypeLookup[2] = 'Nearest Past Media Object';
    1569. 

  1569. 			$ASFIndexObjectIndexTypeLookup[3] = 'Nearest Past Cleanpoint';
    1570. 

  1570. 		}
    1571. 

  1571. 		return (isset($ASFIndexObjectIndexTypeLookup[$id]) ? $ASFIndexObjectIndexTypeLookup[$id] : 'invalid');
    1572. 

  1572. 	}
    1573. 

  1573. 

  1574. 	static function GUIDtoBytestring($GUIDstring) {
    1575. 

  1575. 		// Microsoft defines these 16-byte (128-bit) GUIDs in the strangest way:
    1576. 

  1576. 		// first 4 bytes are in little-endian order
    1577. 

  1577. 		// next 2 bytes are appended in little-endian order
    1578. 

  1578. 		// next 2 bytes are appended in little-endian order
    1579. 

  1579. 		// next 2 bytes are appended in big-endian order
    1580. 

  1580. 		// next 6 bytes are appended in big-endian order
    1581. 

  1581. 

  1582. 		// AaBbCcDd-EeFf-GgHh-IiJj-KkLlMmNnOoPp is stored as this 16-byte string:
    1583. 

  1583. 		// $Dd $Cc $Bb $Aa $Ff $Ee $Hh $Gg $Ii $Jj $Kk $Ll $Mm $Nn $Oo $Pp
    1584. 

  1584. 

  1585. 		$hexbytecharstring  = chr(hexdec(substr($GUIDstring,  6, 2)));
    1586. 

  1586. 		$hexbytecharstring .= chr(hexdec(substr($GUIDstring,  4, 2)));
    1587. 

  1587. 		$hexbytecharstring .= chr(hexdec(substr($GUIDstring,  2, 2)));
    1588. 

  1588. 		$hexbytecharstring .= chr(hexdec(substr($GUIDstring,  0, 2)));
    1589. 

  1589. 

  1590. 		$hexbytecharstring .= chr(hexdec(substr($GUIDstring, 11, 2)));
    1591. 

  1591. 		$hexbytecharstring .= chr(hexdec(substr($GUIDstring,  9, 2)));
    1592. 

  1592. 

  1593. 		$hexbytecharstring .= chr(hexdec(substr($GUIDstring, 16, 2)));
    1594. 

  1594. 		$hexbytecharstring .= chr(hexdec(substr($GUIDstring, 14, 2)));
    1595. 

  1595. 

  1596. 		$hexbytecharstring .= chr(hexdec(substr($GUIDstring, 19, 2)));
    1597. 

  1597. 		$hexbytecharstring .= chr(hexdec(substr($GUIDstring, 21, 2)));
    1598. 

  1598. 

  1599. 		$hexbytecharstring .= chr(hexdec(substr($GUIDstring, 24, 2)));
    1600. 

  1600. 		$hexbytecharstring .= chr(hexdec(substr($GUIDstring, 26, 2)));
    1601. 

  1601. 		$hexbytecharstring .= chr(hexdec(substr($GUIDstring, 28, 2)));
    1602. 

  1602. 		$hexbytecharstring .= chr(hexdec(substr($GUIDstring, 30, 2)));
    1603. 

  1603. 		$hexbytecharstring .= chr(hexdec(substr($GUIDstring, 32, 2)));
    1604. 

  1604. 		$hexbytecharstring .= chr(hexdec(substr($GUIDstring, 34, 2)));
    1605. 

  1605. 

  1606. 		return $hexbytecharstring;
    1607. 

  1607. 	}
    1608. 

  1608. 

  1609. 	static function BytestringToGUID($Bytestring) {
    1610. 

  1610. 		$GUIDstring  = str_pad(dechex(ord($Bytestring{3})),  2, '0', STR_PAD_LEFT);
    1611. 

  1611. 		$GUIDstring .= str_pad(dechex(ord($Bytestring{2})),  2, '0', STR_PAD_LEFT);
    1612. 

  1612. 		$GUIDstring .= str_pad(dechex(ord($Bytestring{1})),  2, '0', STR_PAD_LEFT);
    1613. 

  1613. 		$GUIDstring .= str_pad(dechex(ord($Bytestring{0})),  2, '0', STR_PAD_LEFT);
    1614. 

  1614. 		$GUIDstring .= '-';
    1615. 

  1615. 		$GUIDstring .= str_pad(dechex(ord($Bytestring{5})),  2, '0', STR_PAD_LEFT);
    1616. 

  1616. 		$GUIDstring .= str_pad(dechex(ord($Bytestring{4})),  2, '0', STR_PAD_LEFT);
    1617. 

  1617. 		$GUIDstring .= '-';
    1618. 

  1618. 		$GUIDstring .= str_pad(dechex(ord($Bytestring{7})),  2, '0', STR_PAD_LEFT);
    1619. 

  1619. 		$GUIDstring .= str_pad(dechex(ord($Bytestring{6})),  2, '0', STR_PAD_LEFT);
    1620. 

  1620. 		$GUIDstring .= '-';
    1621. 

  1621. 		$GUIDstring .= str_pad(dechex(ord($Bytestring{8})),  2, '0', STR_PAD_LEFT);
    1622. 

  1622. 		$GUIDstring .= str_pad(dechex(ord($Bytestring{9})),  2, '0', STR_PAD_LEFT);
    1623. 

  1623. 		$GUIDstring .= '-';
    1624. 

  1624. 		$GUIDstring .= str_pad(dechex(ord($Bytestring{10})), 2, '0', STR_PAD_LEFT);
    1625. 

  1625. 		$GUIDstring .= str_pad(dechex(ord($Bytestring{11})), 2, '0', STR_PAD_LEFT);
    1626. 

  1626. 		$GUIDstring .= str_pad(dechex(ord($Bytestring{12})), 2, '0', STR_PAD_LEFT);
    1627. 

  1627. 		$GUIDstring .= str_pad(dechex(ord($Bytestring{13})), 2, '0', STR_PAD_LEFT);
    1628. 

  1628. 		$GUIDstring .= str_pad(dechex(ord($Bytestring{14})), 2, '0', STR_PAD_LEFT);
    1629. 

  1629. 		$GUIDstring .= str_pad(dechex(ord($Bytestring{15})), 2, '0', STR_PAD_LEFT);
    1630. 

  1630. 

  1631. 		return strtoupper($GUIDstring);
    1632. 

  1632. 	}
    1633. 

  1633. 

  1634. 	static function FILETIMEtoUNIXtime($FILETIME, $round=true) {
    1635. 

  1635. 		// FILETIME is a 64-bit unsigned integer representing
    1636. 

  1636. 		// the number of 100-nanosecond intervals since January 1, 1601
    1637. 

  1637. 		// UNIX timestamp is number of seconds since January 1, 1970
    1638. 

  1638. 		// 116444736000000000 = 10000000 * 60 * 60 * 24 * 365 * 369 + 89 leap days
    1639. 

  1639. 		if ($round) {
    1640. 

  1640. 			return intval(round(($FILETIME - 116444736000000000) / 10000000));
    1641. 

  1641. 		}
    1642. 

  1642. 		return ($FILETIME - 116444736000000000) / 10000000;
    1643. 

  1643. 	}
    1644. 

  1644. 

  1645. 	static function WMpictureTypeLookup($WMpictureType) {
    1646. 

  1646. 		static $WMpictureTypeLookup = array();
    1647. 

  1647. 		if (empty($WMpictureTypeLookup)) {
    1648. 

  1648. 			$WMpictureTypeLookup[0x03] = getid3_lib::iconv_fallback('ISO-8859-1', 'UTF-16LE', 'Front Cover');
    1649. 

  1649. 			$WMpictureTypeLookup[0x04] = getid3_lib::iconv_fallback('ISO-8859-1', 'UTF-16LE', 'Back Cover');
    1650. 

  1650. 			$WMpictureTypeLookup[0x00] = getid3_lib::iconv_fallback('ISO-8859-1', 'UTF-16LE', 'User Defined');
    1651. 

  1651. 			$WMpictureTypeLookup[0x05] = getid3_lib::iconv_fallback('ISO-8859-1', 'UTF-16LE', 'Leaflet Page');
    1652. 

  1652. 			$WMpictureTypeLookup[0x06] = getid3_lib::iconv_fallback('ISO-8859-1', 'UTF-16LE', 'Media Label');
    1653. 

  1653. 			$WMpictureTypeLookup[0x07] = getid3_lib::iconv_fallback('ISO-8859-1', 'UTF-16LE', 'Lead Artist');
    1654. 

  1654. 			$WMpictureTypeLookup[0x08] = getid3_lib::iconv_fallback('ISO-8859-1', 'UTF-16LE', 'Artist');
    1655. 

  1655. 			$WMpictureTypeLookup[0x09] = getid3_lib::iconv_fallback('ISO-8859-1', 'UTF-16LE', 'Conductor');
    1656. 

  1656. 			$WMpictureTypeLookup[0x0A] = getid3_lib::iconv_fallback('ISO-8859-1', 'UTF-16LE', 'Band');
    1657. 

  1657. 			$WMpictureTypeLookup[0x0B] = getid3_lib::iconv_fallback('ISO-8859-1', 'UTF-16LE', 'Composer');
    1658. 

  1658. 			$WMpictureTypeLookup[0x0C] = getid3_lib::iconv_fallback('ISO-8859-1', 'UTF-16LE', 'Lyricist');
    1659. 

  1659. 			$WMpictureTypeLookup[0x0D] = getid3_lib::iconv_fallback('ISO-8859-1', 'UTF-16LE', 'Recording Location');
    1660. 

  1660. 			$WMpictureTypeLookup[0x0E] = getid3_lib::iconv_fallback('ISO-8859-1', 'UTF-16LE', 'During Recording');
    1661. 

  1661. 			$WMpictureTypeLookup[0x0F] = getid3_lib::iconv_fallback('ISO-8859-1', 'UTF-16LE', 'During Performance');
    1662. 

  1662. 			$WMpictureTypeLookup[0x10] = getid3_lib::iconv_fallback('ISO-8859-1', 'UTF-16LE', 'Video Screen Capture');
    1663. 

  1663. 			$WMpictureTypeLookup[0x12] = getid3_lib::iconv_fallback('ISO-8859-1', 'UTF-16LE', 'Illustration');
    1664. 

  1664. 			$WMpictureTypeLookup[0x13] = getid3_lib::iconv_fallback('ISO-8859-1', 'UTF-16LE', 'Band Logotype');
    1665. 

  1665. 			$WMpictureTypeLookup[0x14] = getid3_lib::iconv_fallback('ISO-8859-1', 'UTF-16LE', 'Publisher Logotype');
    1666. 

  1666. 		}
    1667. 

  1667. 		return (isset($WMpictureTypeLookup[$WMpictureType]) ? $WMpictureTypeLookup[$WMpictureType] : '');
    1668. 

  1668. 	}
    1669. 

  1669. 

  1670. 

  1671. 	// Remove terminator 00 00 and convert UNICODE to Latin-1
    1672. 

  1672. 	static function TrimConvert($string) {
    1673. 

  1673. 		return trim(getid3_lib::iconv_fallback('UTF-16LE', 'ISO-8859-1', getid3_asf::TrimTerm($string)), ' ');
    1674. 

  1674. 	}
    1675. 

  1675. 

  1676. 

  1677. 	// Remove terminator 00 00
    1678. 

  1678. 	static function TrimTerm($string) {
    1679. 

  1679. 		// remove terminator, only if present (it should be, but...)
    1680. 

  1680. 		if (substr($string, -2) === "\x00\x00") {
    1681. 

  1681. 			$string = substr($string, 0, -2);
    1682. 

  1682. 		}
    1683. 

  1683. 		return $string;
    1684. 

  1684. 	}
    1685. 

  1685. 

  1686. 

  1687. }
    1688. 

  1688. 

  1689. ?>
    1690.