module.audio-video.real.php

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						switch ($thisfile_real_chunks_currentchunk['mime_type']) {
							case 'video/x-pn-realvideo':
							case 'video/x-pn-multirate-realvideo':
								// http://www.freelists.org/archives/matroska-devel/07-2003/msg00010.html

								// shortcut
								$thisfile_real_chunks_currentchunk['video_info'] = array();
								$thisfile_real_chunks_currentchunk_videoinfo     = &$thisfile_real_chunks_currentchunk['video_info'];

								$thisfile_real_chunks_currentchunk_videoinfo['dwSize']            = getid3_lib::BigEndian2Int(substr($thisfile_real_chunks_currentchunk_typespecificdata,  0, 4));
								$thisfile_real_chunks_currentchunk_videoinfo['fourcc1']           =                           substr($thisfile_real_chunks_currentchunk_typespecificdata,  4, 4);
								$thisfile_real_chunks_currentchunk_videoinfo['fourcc2']           =                           substr($thisfile_real_chunks_currentchunk_typespecificdata,  8, 4);
								$thisfile_real_chunks_currentchunk_videoinfo['width']             = getid3_lib::BigEndian2Int(substr($thisfile_real_chunks_currentchunk_typespecificdata, 12, 2));
								$thisfile_real_chunks_currentchunk_videoinfo['height']            = getid3_lib::BigEndian2Int(substr($thisfile_real_chunks_currentchunk_typespecificdata, 14, 2));
								$thisfile_real_chunks_currentchunk_videoinfo['bits_per_sample']   = getid3_lib::BigEndian2Int(substr($thisfile_real_chunks_currentchunk_typespecificdata, 16, 2));
								$thisfile_real_chunks_currentchunk_videoinfo['unknown1']          = getid3_lib::BigEndian2Int(substr($thisfile_real_chunks_currentchunk_typespecificdata, 18, 2));
								$thisfile_real_chunks_currentchunk_videoinfo['unknown2']          = getid3_lib::BigEndian2Int(substr($thisfile_real_chunks_currentchunk_typespecificdata, 20, 2));
								$thisfile_real_chunks_currentchunk_videoinfo['frames_per_second'] = getid3_lib::BigEndian2Int(substr($thisfile_real_chunks_currentchunk_typespecificdata, 22, 2));
								$thisfile_real_chunks_currentchunk_videoinfo['unknown3']          = getid3_lib::BigEndian2Int(substr($thisfile_real_chunks_currentchunk_typespecificdata, 24, 2));
								$thisfile_real_chunks_currentchunk_videoinfo['unknown4']          = getid3_lib::BigEndian2Int(substr($thisfile_real_chunks_currentchunk_typespecificdata, 26, 2));
								$thisfile_real_chunks_currentchunk_videoinfo['unknown5']          = getid3_lib::BigEndian2Int(substr($thisfile_real_chunks_currentchunk_typespecificdata, 28, 2));
								$thisfile_real_chunks_currentchunk_videoinfo['unknown6']          = getid3_lib::BigEndian2Int(substr($thisfile_real_chunks_currentchunk_typespecificdata, 30, 2));
								$thisfile_real_chunks_currentchunk_videoinfo['unknown7']          = getid3_lib::BigEndian2Int(substr($thisfile_real_chunks_currentchunk_typespecificdata, 32, 2));
								$thisfile_real_chunks_currentchunk_videoinfo['unknown8']          = getid3_lib::BigEndian2Int(substr($thisfile_real_chunks_currentchunk_typespecificdata, 34, 2));
								$thisfile_real_chunks_currentchunk_videoinfo['unknown9']          = getid3_lib::BigEndian2Int(substr($thisfile_real_chunks_currentchunk_typespecificdata, 36, 2));

								$thisfile_real_chunks_currentchunk_videoinfo['codec'] = getid3_riff::RIFFfourccLookup($thisfile_real_chunks_currentchunk_videoinfo['fourcc2']);

								$ThisFileInfo['video']['resolution_x']    =         $thisfile_real_chunks_currentchunk_videoinfo['width'];
								$ThisFileInfo['video']['resolution_y']    =         $thisfile_real_chunks_currentchunk_videoinfo['height'];
								$ThisFileInfo['video']['frame_rate']      = (float) $thisfile_real_chunks_currentchunk_videoinfo['frames_per_second'];
								$ThisFileInfo['video']['codec']           =         $thisfile_real_chunks_currentchunk_videoinfo['codec'];
								$ThisFileInfo['video']['bits_per_sample'] =         $thisfile_real_chunks_currentchunk_videoinfo['bits_per_sample'];
								break;

							case 'audio/x-pn-realaudio':
							case 'audio/x-pn-multirate-realaudio':
								$this->ParseOldRAheader($thisfile_real_chunks_currentchunk_typespecificdata, $thisfile_real_chunks_currentchunk['parsed_audio_data']);

								$ThisFileInfo['audio']['sample_rate']     = $thisfile_real_chunks_currentchunk['parsed_audio_data']['sample_rate'];
								$ThisFileInfo['audio']['bits_per_sample'] = $thisfile_real_chunks_currentchunk['parsed_audio_data']['bits_per_sample'];
								$ThisFileInfo['audio']['channels']        = $thisfile_real_chunks_currentchunk['parsed_audio_data']['channels'];
								if (!empty($ThisFileInfo['audio']['dataformat'])) {
									foreach ($ThisFileInfo['audio'] as $key => $value) {
										if ($key != 'streams') {
											$ThisFileInfo['audio']['streams'][$thisfile_real_chunks_currentchunk['stream_number']][$key] = $value;
										}
									}
								}
								break;

							case 'logical-fileinfo':
								// shortcut
								$thisfile_real_chunks_currentchunk['logical_fileinfo'] = array();
								$thisfile_real_chunks_currentchunk_logicalfileinfo     = &$thisfile_real_chunks_currentchunk['logical_fileinfo'];

								$thisfile_real_chunks_currentchunk_logicalfileinfo_offset = 0;
								$thisfile_real_chunks_currentchunk_logicalfileinfo['logical_fileinfo_length'] = getid3_lib::BigEndian2Int(substr($thisfile_real_chunks_currentchunk_typespecificdata, $thisfile_real_chunks_currentchunk_logicalfileinfo_offset, 4));
								$thisfile_real_chunks_currentchunk_logicalfileinfo_offset += 4;

								$thisfile_real_chunks_currentchunk_logicalfileinfo['unknown1']                = getid3_lib::BigEndian2Int(substr($thisfile_real_chunks_currentchunk_typespecificdata, $thisfile_real_chunks_currentchunk_logicalfileinfo_offset, 4));
								$thisfile_real_chunks_currentchunk_logicalfileinfo_offset += 4;

								$thisfile_real_chunks_currentchunk_logicalfileinfo['num_tags']                = getid3_lib::BigEndian2Int(substr($thisfile_real_chunks_currentchunk_typespecificdata, $thisfile_real_chunks_currentchunk_logicalfileinfo_offset, 4));
								$thisfile_real_chunks_currentchunk_logicalfileinfo_offset += 4;

								$thisfile_real_chunks_currentchunk_logicalfileinfo['unknown2']                = getid3_lib::BigEndian2Int(substr($thisfile_real_chunks_currentchunk_typespecificdata, $thisfile_real_chunks_currentchunk_logicalfileinfo_offset, 4));
								$thisfile_real_chunks_currentchunk_logicalfileinfo_offset += 4;

								//$thisfile_real_chunks_currentchunk_logicalfileinfo['d']                       = getid3_lib::BigEndian2Int(substr($thisfile_real_chunks_currentchunk_typespecificdata, $thisfile_real_chunks_currentchunk_logicalfileinfo_offset, 1));

								//$thisfile_real_chunks_currentchunk_logicalfileinfo['one_type'] = getid3_lib::BigEndian2Int(substr($thisfile_real_chunks_currentchunk_typespecificdata,     $thisfile_real_chunks_currentchunk_logicalfileinfo_offset, 4));
								//$thisfile_real_chunks_currentchunk_logicalfileinfo_thislength  = getid3_lib::BigEndian2Int(substr($thisfile_real_chunks_currentchunk_typespecificdata, 4 + $thisfile_real_chunks_currentchunk_logicalfileinfo_offset, 2));
								//$thisfile_real_chunks_currentchunk_logicalfileinfo['one']      =                           substr($thisfile_real_chunks_currentchunk_typespecificdata, 6 + $thisfile_real_chunks_currentchunk_logicalfileinfo_offset, $thisfile_real_chunks_currentchunk_logicalfileinfo_thislength);
								//$thisfile_real_chunks_currentchunk_logicalfileinfo_offset += (6 + $thisfile_real_chunks_currentchunk_logicalfileinfo_thislength);

								break;

						}


						if (empty($ThisFileInfo['playtime_seconds'])) {
							$ThisFileInfo['playtime_seconds'] = max($ThisFileInfo['playtime_seconds'], ($thisfile_real_chunks_currentchunk['duration'] + $thisfile_real_chunks_currentchunk['start_time']) / 1000);
						}
						if ($thisfile_real_chunks_currentchunk['duration'] > 0) {
							switch ($thisfile_real_chunks_currentchunk['mime_type']) {
								case 'audio/x-pn-realaudio':
								case 'audio/x-pn-multirate-realaudio':
									$ThisFileInfo['audio']['bitrate']    = (isset($ThisFileInfo['audio']['bitrate']) ? $ThisFileInfo['audio']['bitrate'] : 0) + $thisfile_real_chunks_currentchunk['avg_bit_rate'];
									$ThisFileInfo['audio']['codec']      = $this->RealAudioCodecFourCClookup($thisfile_real_chunks_currentchunk['parsed_audio_data']['fourcc'], $ThisFileInfo['audio']['bitrate']);
									$ThisFileInfo['audio']['dataformat'] = 'real';
									$ThisFileInfo['audio']['lossless']   = false;
									break;

								case 'video/x-pn-realvideo':
								case 'video/x-pn-multirate-realvideo':
									$ThisFileInfo['video']['bitrate']            = (isset($ThisFileInfo['video']['bitrate']) ? $ThisFileInfo['video']['bitrate'] : 0) + $thisfile_real_chunks_currentchunk['avg_bit_rate'];
									$ThisFileInfo['video']['bitrate_mode']       = 'cbr';
									$ThisFileInfo['video']['dataformat']         = 'real';
									$ThisFileInfo['video']['lossless']           = false;
									$ThisFileInfo['video']['pixel_aspect_ratio'] = (float) 1;
									break;

								case 'audio/x-ralf-mpeg4-generic':
									$ThisFileInfo['audio']['bitrate']    = (isset($ThisFileInfo['audio']['bitrate']) ? $ThisFileInfo['audio']['bitrate'] : 0) + $thisfile_real_chunks_currentchunk['avg_bit_rate'];
									$ThisFileInfo['audio']['codec']      = 'RealAudio Lossless';
									$ThisFileInfo['audio']['dataformat'] = 'real';
									$ThisFileInfo['audio']['lossless']   = true;
									break;
							}
							$ThisFileInfo['bitrate'] = (isset($ThisFileInfo['video']['bitrate']) ? $ThisFileInfo['video']['bitrate'] : 0) + (isset($ThisFileInfo['audio']['bitrate']) ? $ThisFileInfo['audio']['bitrate'] : 0);
						}
					}
					break;

				case 'CONT': // Content Description Header (text comments)
					$thisfile_real_chunks_currentchunk['object_version'] = getid3_lib::BigEndian2Int(substr($ChunkData, $offset, 2));
					$offset += 2;
					if ($thisfile_real_chunks_currentchunk['object_version'] == 0) {
						$thisfile_real_chunks_currentchunk['title_len'] = getid3_lib::BigEndian2Int(substr($ChunkData, $offset, 2));
						$offset += 2;
						$thisfile_real_chunks_currentchunk['title'] = (string) substr($ChunkData, $offset, $thisfile_real_chunks_currentchunk['title_len']);
						$offset += $thisfile_real_chunks_currentchunk['title_len'];

						$thisfile_real_chunks_currentchunk['artist_len'] = getid3_lib::BigEndian2Int(substr($ChunkData, $offset, 2));
						$offset += 2;
						$thisfile_real_chunks_currentchunk['artist'] = (string) substr($ChunkData, $offset, $thisfile_real_chunks_currentchunk['artist_len']);
						$offset += $thisfile_real_chunks_currentchunk['artist_len'];

						$thisfile_real_chunks_currentchunk['copyright_len'] = getid3_lib::BigEndian2Int(substr($ChunkData, $offset, 2));
						$offset += 2;
						$thisfile_real_chunks_currentchunk['copyright'] = (string) substr($ChunkData, $offset, $thisfile_real_chunks_currentchunk['copyright_len']);
						$offset += $thisfile_real_chunks_currentchunk['copyright_len'];

						$thisfile_real_chunks_currentchunk['comment_len'] = getid3_lib::BigEndian2Int(substr($ChunkData, $offset, 2));
						$offset += 2;
						$thisfile_real_chunks_currentchunk['comment'] = (string) substr($ChunkData, $offset, $thisfile_real_chunks_currentchunk['comment_len']);
						$offset += $thisfile_real_chunks_currentchunk['comment_len'];


						$commentkeystocopy = array('title'=>'title', 'artist'=>'artist', 'copyright'=>'copyright', 'comment'=>'comment');
						foreach ($commentkeystocopy as $key => $val) {
							if ($thisfile_real_chunks_currentchunk[$key]) {
								$ThisFileInfo['real']['comments'][$val][] = trim($thisfile_real_chunks_currentchunk[$key]);
							}
						}

					}
					break;


				case 'DATA': // Data Chunk Header
					// do nothing
					break;

				case 'INDX': // Index Section Header
					$thisfile_real_chunks_currentchunk['object_version']        = getid3_lib::BigEndian2Int(substr($ChunkData, $offset, 2));
					$offset += 2;
					if ($thisfile_real_chunks_currentchunk['object_version'] == 0) {
						$thisfile_real_chunks_currentchunk['num_indices']       = getid3_lib::BigEndian2Int(substr($ChunkData, $offset, 4));
						$offset += 4;
						$thisfile_real_chunks_currentchunk['stream_number']     = getid3_lib::BigEndian2Int(substr($ChunkData, $offset, 2));
						$offset += 2;
						$thisfile_real_chunks_currentchunk['next_index_header'] = getid3_lib::BigEndian2Int(substr($ChunkData, $offset, 4));
						$offset += 4;

						if ($thisfile_real_chunks_currentchunk['next_index_header'] == 0) {
							// last index chunk found, ignore rest of file
							break 2;
						} else {
							// non-last index chunk, seek to next index chunk (skipping actual index data)
							fseek($fd, $thisfile_real_chunks_currentchunk['next_index_header'], SEEK_SET);
						}
					}
					break;