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<?php ///////////////////////////////////////////////////////////////// /// getID3() by James Heinrich <info@getid3.org> // // available at http://getid3.sourceforge.net // // or http://www.getid3.org // // also https://github.com/JamesHeinrich/getID3 // ///////////////////////////////////////////////////////////////// // See readme.txt for more details // ///////////////////////////////////////////////////////////////// // // // module.audio-video.real.php // // module for analyzing Real Audio/Video files // // dependencies: module.audio-video.riff.php // // /// ///////////////////////////////////////////////////////////////// getid3_lib::IncludeDependency(GETID3_INCLUDEPATH.'module.audio-video.riff.php', __FILE__, true); class getid3_real extends getid3_handler { public function Analyze() { $info = &$this->getid3->info; $info['fileformat'] = 'real'; $info['bitrate'] = 0; $info['playtime_seconds'] = 0; $this->fseek($info['avdataoffset']); $ChunkCounter = 0; while ($this->ftell() < $info['avdataend']) { $ChunkData = $this->fread(8); $ChunkName = substr($ChunkData, 0, 4); $ChunkSize = getid3_lib::BigEndian2Int(substr($ChunkData, 4, 4)); if ($ChunkName == '.ra'."\xFD") { $ChunkData .= $this->fread($ChunkSize - 8); if ($this->ParseOldRAheader(substr($ChunkData, 0, 128), $info['real']['old_ra_header'])) { $info['audio']['dataformat'] = 'real'; $info['audio']['lossless'] = false; $info['audio']['sample_rate'] = $info['real']['old_ra_header']['sample_rate']; $info['audio']['bits_per_sample'] = $info['real']['old_ra_header']['bits_per_sample']; $info['audio']['channels'] = $info['real']['old_ra_header']['channels']; $info['playtime_seconds'] = 60 * ($info['real']['old_ra_header']['audio_bytes'] / $info['real']['old_ra_header']['bytes_per_minute']); $info['audio']['bitrate'] = 8 * ($info['real']['old_ra_header']['audio_bytes'] / $info['playtime_seconds']); $info['audio']['codec'] = $this->RealAudioCodecFourCClookup($info['real']['old_ra_header']['fourcc'], $info['audio']['bitrate']); foreach ($info['real']['old_ra_header']['comments'] as $key => $valuearray) { if (strlen(trim($valuearray[0])) > 0) { $info['real']['comments'][$key][] = trim($valuearray[0]); } } return true; } $this->error('There was a problem parsing this RealAudio file. Please submit it for analysis to info@getid3.org'); unset($info['bitrate']); unset($info['playtime_seconds']); return false; } // shortcut $info['real']['chunks'][$ChunkCounter] = array(); $thisfile_real_chunks_currentchunk = &$info['real']['chunks'][$ChunkCounter]; $thisfile_real_chunks_currentchunk['name'] = $ChunkName; $thisfile_real_chunks_currentchunk['offset'] = $this->ftell() - 8; $thisfile_real_chunks_currentchunk['length'] = $ChunkSize; if (($thisfile_real_chunks_currentchunk['offset'] + $thisfile_real_chunks_currentchunk['length']) > $info['avdataend']) { $this->warning('Chunk "'.$thisfile_real_chunks_currentchunk['name'].'" at offset '.$thisfile_real_chunks_currentchunk['offset'].' claims to be '.$thisfile_real_chunks_currentchunk['length'].' bytes long, which is beyond end of file'); return false; } if ($ChunkSize > ($this->getid3->fread_buffer_size() + 8)) { $ChunkData .= $this->fread($this->getid3->fread_buffer_size() - 8); $this->fseek($thisfile_real_chunks_currentchunk['offset'] + $ChunkSize); } elseif(($ChunkSize - 8) > 0) { $ChunkData .= $this->fread($ChunkSize - 8); } $offset = 8; switch ($ChunkName) { case '.RMF': // RealMedia File Header $thisfile_real_chunks_currentchunk['object_version'] = getid3_lib::BigEndian2Int(substr($ChunkData, $offset, 2)); $offset += 2; switch ($thisfile_real_chunks_currentchunk['object_version']) { case 0: $thisfile_real_chunks_currentchunk['file_version'] = getid3_lib::BigEndian2Int(substr($ChunkData, $offset, 4)); $offset += 4; $thisfile_real_chunks_currentchunk['headers_count'] = getid3_lib::BigEndian2Int(substr($ChunkData, $offset, 4)); $offset += 4; break; default: //$this->warning('Expected .RMF-object_version to be "0", actual value is "'.$thisfile_real_chunks_currentchunk['object_version'].'" (should not be a problem)'); break; } break; case 'PROP': // Properties Header $thisfile_real_chunks_currentchunk['object_version'] = getid3_lib::BigEndian2Int(substr($ChunkData, $offset, 2)); $offset += 2; if ($thisfile_real_chunks_currentchunk['object_version'] == 0) { $thisfile_real_chunks_currentchunk['max_bit_rate'] = getid3_lib::BigEndian2Int(substr($ChunkData, $offset, 4)); $offset += 4; $thisfile_real_chunks_currentchunk['avg_bit_rate'] = getid3_lib::BigEndian2Int(substr($ChunkData, $offset, 4)); $offset += 4; $thisfile_real_chunks_currentchunk['max_packet_size'] = getid3_lib::BigEndian2Int(substr($ChunkData, $offset, 4)); $offset += 4; $thisfile_real_chunks_currentchunk['avg_packet_size'] = getid3_lib::BigEndian2Int(substr($ChunkData, $offset, 4)); $offset += 4; $thisfile_real_chunks_currentchunk['num_packets'] = getid3_lib::BigEndian2Int(substr($ChunkData, $offset, 4)); $offset += 4; $thisfile_real_chunks_currentchunk['duration'] = getid3_lib::BigEndian2Int(substr($ChunkData, $offset, 4)); $offset += 4; $thisfile_real_chunks_currentchunk['preroll'] = getid3_lib::BigEndian2Int(substr($ChunkData, $offset, 4)); $offset += 4; $thisfile_real_chunks_currentchunk['index_offset'] = getid3_lib::BigEndian2Int(substr($ChunkData, $offset, 4)); $offset += 4; $thisfile_real_chunks_currentchunk['data_offset'] = getid3_lib::BigEndian2Int(substr($ChunkData, $offset, 4)); $offset += 4; $thisfile_real_chunks_currentchunk['num_streams'] = getid3_lib::BigEndian2Int(substr($ChunkData, $offset, 2)); $offset += 2; $thisfile_real_chunks_currentchunk['flags_raw'] = getid3_lib::BigEndian2Int(substr($ChunkData, $offset, 2)); $offset += 2; $info['playtime_seconds'] = $thisfile_real_chunks_currentchunk['duration'] / 1000; if ($thisfile_real_chunks_currentchunk['duration'] > 0) { $info['bitrate'] += $thisfile_real_chunks_currentchunk['avg_bit_rate']; } $thisfile_real_chunks_currentchunk['flags']['save_enabled'] = (bool) ($thisfile_real_chunks_currentchunk['flags_raw'] & 0x0001); $thisfile_real_chunks_currentchunk['flags']['perfect_play'] = (bool) ($thisfile_real_chunks_currentchunk['flags_raw'] & 0x0002); $thisfile_real_chunks_currentchunk['flags']['live_broadcast'] = (bool) ($thisfile_real_chunks_currentchunk['flags_raw'] & 0x0004); } break; case 'MDPR': // Media Properties Header $thisfile_real_chunks_currentchunk['object_version'] = getid3_lib::BigEndian2Int(substr($ChunkData, $offset, 2)); $offset += 2; if ($thisfile_real_chunks_currentchunk['object_version'] == 0) { $thisfile_real_chunks_currentchunk['stream_number'] = getid3_lib::BigEndian2Int(substr($ChunkData, $offset, 2)); $offset += 2; $thisfile_real_chunks_currentchunk['max_bit_rate'] = getid3_lib::BigEndian2Int(substr($ChunkData, $offset, 4)); $offset += 4; $thisfile_real_chunks_currentchunk['avg_bit_rate'] = getid3_lib::BigEndian2Int(substr($ChunkData, $offset, 4)); $offset += 4; $thisfile_real_chunks_currentchunk['max_packet_size'] = getid3_lib::BigEndian2Int(substr($ChunkData, $offset, 4)); $offset += 4; $thisfile_real_chunks_currentchunk['avg_packet_size'] = getid3_lib::BigEndian2Int(substr($ChunkData, $offset, 4)); $offset += 4; $thisfile_real_chunks_currentchunk['start_time'] = getid3_lib::BigEndian2Int(substr($ChunkData, $offset, 4)); $offset += 4; $thisfile_real_chunks_currentchunk['preroll'] = getid3_lib::BigEndian2Int(substr($ChunkData, $offset, 4)); $offset += 4; $thisfile_real_chunks_currentchunk['duration'] = getid3_lib::BigEndian2Int(substr($ChunkData, $offset, 4)); $offset += 4; $thisfile_real_chunks_currentchunk['stream_name_size'] = getid3_lib::BigEndian2Int(substr($ChunkData, $offset, 1)); $offset += 1; $thisfile_real_chunks_currentchunk['stream_name'] = substr($ChunkData, $offset, $thisfile_real_chunks_currentchunk['stream_name_size']); $offset += $thisfile_real_chunks_currentchunk['stream_name_size']; $thisfile_real_chunks_currentchunk['mime_type_size'] = getid3_lib::BigEndian2Int(substr($ChunkData, $offset, 1)); $offset += 1; $thisfile_real_chunks_currentchunk['mime_type'] = substr($ChunkData, $offset, $thisfile_real_chunks_currentchunk['mime_type_size']); $offset += $thisfile_real_chunks_currentchunk['mime_type_size']; $thisfile_real_chunks_currentchunk['type_specific_len'] = getid3_lib::BigEndian2Int(substr($ChunkData, $offset, 4)); $offset += 4; $thisfile_real_chunks_currentchunk['type_specific_data'] = substr($ChunkData, $offset, $thisfile_real_chunks_currentchunk['type_specific_len']); $offset += $thisfile_real_chunks_currentchunk['type_specific_len']; // shortcut $thisfile_real_chunks_currentchunk_typespecificdata = &$thisfile_real_chunks_currentchunk['type_specific_data']; 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)); $thisfile_real_chunks_currentchunk_videoinfo['codec'] = getid3_riff::fourccLookup($thisfile_real_chunks_currentchunk_videoinfo['fourcc2']); $info['video']['resolution_x'] = $thisfile_real_chunks_currentchunk_videoinfo['width']; $info['video']['resolution_y'] = $thisfile_real_chunks_currentchunk_videoinfo['height']; $info['video']['frame_rate'] = (float) $thisfile_real_chunks_currentchunk_videoinfo['frames_per_second']; $info['video']['codec'] = $thisfile_real_chunks_currentchunk_videoinfo['codec']; $info['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']); $info['audio']['sample_rate'] = $thisfile_real_chunks_currentchunk['parsed_audio_data']['sample_rate']; $info['audio']['bits_per_sample'] = $thisfile_real_chunks_currentchunk['parsed_audio_data']['bits_per_sample']; $info['audio']['channels'] = $thisfile_real_chunks_currentchunk['parsed_audio_data']['channels']; if (!empty($info['audio']['dataformat'])) { foreach ($info['audio'] as $key => $value) { if ($key != 'streams') { $info['audio']['streams'][$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 + $thisfile_real_chunks_currentchunk_logicalfileinfo_thislength); break; } if (empty($info['playtime_seconds'])) { $info['playtime_seconds'] = max($info['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': $info['audio']['bitrate'] = (isset($info['audio']['bitrate']) ? $info['audio']['bitrate'] : 0) + $thisfile_real_chunks_currentchunk['avg_bit_rate']; $info['audio']['codec'] = $this->RealAudioCodecFourCClookup($thisfile_real_chunks_currentchunk['parsed_audio_data']['fourcc'], $info['audio']['bitrate']); $info['audio']['dataformat'] = 'real'; $info['audio']['lossless'] = false; break; case 'video/x-pn-realvideo': case 'video/x-pn-multirate-realvideo': $info['video']['bitrate'] = (isset($info['video']['bitrate']) ? $info['video']['bitrate'] : 0) + $thisfile_real_chunks_currentchunk['avg_bit_rate']; $info['video']['bitrate_mode'] = 'cbr'; $info['video']['dataformat'] = 'real'; $info['video']['lossless'] = false; $info['video']['pixel_aspect_ratio'] = (float) 1; break; case 'audio/x-ralf-mpeg4-generic': $info['audio']['bitrate'] = (isset($info['audio']['bitrate']) ? $info['audio']['bitrate'] : 0) + $thisfile_real_chunks_currentchunk['avg_bit_rate']; $info['audio']['codec'] = 'RealAudio Lossless'; $info['audio']['dataformat'] = 'real'; $info['audio']['lossless'] = true; break; } $info['bitrate'] = (isset($info['video']['bitrate']) ? $info['video']['bitrate'] : 0) + (isset($info['audio']['bitrate']) ? $info['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]) { $info['real']['comments'][$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) $this->fseek($thisfile_real_chunks_currentchunk['next_index_header']); } } break; default: $this->warning('Unhandled RealMedia chunk "'.$ChunkName.'" at offset '.$thisfile_real_chunks_currentchunk['offset']); break; } $ChunkCounter++; } if (!empty($info['audio']['streams'])) { $info['audio']['bitrate'] = 0; foreach ($info['audio']['streams'] as $key => $valuearray) { $info['audio']['bitrate'] += $valuearray['bitrate']; } } return true; } public function ParseOldRAheader($OldRAheaderData, &$ParsedArray) { // http://www.freelists.org/archives/matroska-devel/07-2003/msg00010.html $ParsedArray = array(); $ParsedArray['magic'] = substr($OldRAheaderData, 0, 4); if ($ParsedArray['magic'] != '.ra'."\xFD") { return false; } $ParsedArray['version1'] = getid3_lib::BigEndian2Int(substr($OldRAheaderData, 4, 2)); if ($ParsedArray['version1'] < 3) { return false; } elseif ($ParsedArray['version1'] == 3) { $ParsedArray['fourcc1'] = '.ra3'; $ParsedArray['bits_per_sample'] = 16; // hard-coded for old versions? $ParsedArray['sample_rate'] = 8000; // hard-coded for old versions? $ParsedArray['header_size'] = getid3_lib::BigEndian2Int(substr($OldRAheaderData, 6, 2)); $ParsedArray['channels'] = getid3_lib::BigEndian2Int(substr($OldRAheaderData, 8, 2)); // always 1 (?) //$ParsedArray['unknown1'] = getid3_lib::BigEndian2Int(substr($OldRAheaderData, 10, 2)); //$ParsedArray['unknown2'] = getid3_lib::BigEndian2Int(substr($OldRAheaderData, 12, 2)); //$ParsedArray['unknown3'] = getid3_lib::BigEndian2Int(substr($OldRAheaderData, 14, 2)); $ParsedArray['bytes_per_minute'] = getid3_lib::BigEndian2Int(substr($OldRAheaderData, 16, 2)); $ParsedArray['audio_bytes'] = getid3_lib::BigEndian2Int(substr($OldRAheaderData, 18, 4)); $ParsedArray['comments_raw'] = substr($OldRAheaderData, 22, $ParsedArray['header_size'] - 22 + 1); // not including null terminator $commentoffset = 0; $commentlength = getid3_lib::BigEndian2Int(substr($ParsedArray['comments_raw'], $commentoffset++, 1)); $ParsedArray['comments']['title'][] = substr($ParsedArray['comments_raw'], $commentoffset, $commentlength); $commentoffset += $commentlength; $commentlength = getid3_lib::BigEndian2Int(substr($ParsedArray['comments_raw'], $commentoffset++, 1)); $ParsedArray['comments']['artist'][] = substr($ParsedArray['comments_raw'], $commentoffset, $commentlength); $commentoffset += $commentlength; $commentlength = getid3_lib::BigEndian2Int(substr($ParsedArray['comments_raw'], $commentoffset++, 1)); $ParsedArray['comments']['copyright'][] = substr($ParsedArray['comments_raw'], $commentoffset, $commentlength); $commentoffset += $commentlength; $commentoffset++; // final null terminator (?) $commentoffset++; // fourcc length (?) should be 4 $ParsedArray['fourcc'] = substr($OldRAheaderData, 23 + $commentoffset, 4); } elseif ($ParsedArray['version1'] <= 5) { //$ParsedArray['unknown1'] = getid3_lib::BigEndian2Int(substr($OldRAheaderData, 6, 2)); $ParsedArray['fourcc1'] = substr($OldRAheaderData, 8, 4); $ParsedArray['file_size'] = getid3_lib::BigEndian2Int(substr($OldRAheaderData, 12, 4)); $ParsedArray['version2'] = getid3_lib::BigEndian2Int(substr($OldRAheaderData, 16, 2)); $ParsedArray['header_size'] = getid3_lib::BigEndian2Int(substr($OldRAheaderData, 18, 4)); $ParsedArray['codec_flavor_id'] = getid3_lib::BigEndian2Int(substr($OldRAheaderData, 22, 2)); $ParsedArray['coded_frame_size'] = getid3_lib::BigEndian2Int(substr($OldRAheaderData, 24, 4)); $ParsedArray['audio_bytes'] = getid3_lib::BigEndian2Int(substr($OldRAheaderData, 28, 4)); $ParsedArray['bytes_per_minute'] = getid3_lib::BigEndian2Int(substr($OldRAheaderData, 32, 4)); //$ParsedArray['unknown5'] = getid3_lib::BigEndian2Int(substr($OldRAheaderData, 36, 4)); $ParsedArray['sub_packet_h'] = getid3_lib::BigEndian2Int(substr($OldRAheaderData, 40, 2)); $ParsedArray['frame_size'] = getid3_lib::BigEndian2Int(substr($OldRAheaderData, 42, 2)); $ParsedArray['sub_packet_size'] = getid3_lib::BigEndian2Int(substr($OldRAheaderData, 44, 2)); //$ParsedArray['unknown6'] = getid3_lib::BigEndian2Int(substr($OldRAheaderData, 46, 2)); switch ($ParsedArray['version1']) { case 4: $ParsedArray['sample_rate'] = getid3_lib::BigEndian2Int(substr($OldRAheaderData, 48, 2)); //$ParsedArray['unknown8'] = getid3_lib::BigEndian2Int(substr($OldRAheaderData, 50, 2)); $ParsedArray['bits_per_sample'] = getid3_lib::BigEndian2Int(substr($OldRAheaderData, 52, 2)); $ParsedArray['channels'] = getid3_lib::BigEndian2Int(substr($OldRAheaderData, 54, 2)); $ParsedArray['length_fourcc2'] = getid3_lib::BigEndian2Int(substr($OldRAheaderData, 56, 1)); $ParsedArray['fourcc2'] = substr($OldRAheaderData, 57, 4); $ParsedArray['length_fourcc3'] = getid3_lib::BigEndian2Int(substr($OldRAheaderData, 61, 1)); $ParsedArray['fourcc3'] = substr($OldRAheaderData, 62, 4); //$ParsedArray['unknown9'] = getid3_lib::BigEndian2Int(substr($OldRAheaderData, 66, 1)); //$ParsedArray['unknown10'] = getid3_lib::BigEndian2Int(substr($OldRAheaderData, 67, 2)); $ParsedArray['comments_raw'] = substr($OldRAheaderData, 69, $ParsedArray['header_size'] - 69 + 16); $commentoffset = 0; $commentlength = getid3_lib::BigEndian2Int(substr($ParsedArray['comments_raw'], $commentoffset++, 1)); $ParsedArray['comments']['title'][] = substr($ParsedArray['comments_raw'], $commentoffset, $commentlength); $commentoffset += $commentlength; $commentlength = getid3_lib::BigEndian2Int(substr($ParsedArray['comments_raw'], $commentoffset++, 1)); $ParsedArray['comments']['artist'][] = substr($ParsedArray['comments_raw'], $commentoffset, $commentlength); $commentoffset += $commentlength; $commentlength = getid3_lib::BigEndian2Int(substr($ParsedArray['comments_raw'], $commentoffset++, 1)); $ParsedArray['comments']['copyright'][] = substr($ParsedArray['comments_raw'], $commentoffset, $commentlength); $commentoffset += $commentlength; break; case 5: $ParsedArray['sample_rate'] = getid3_lib::BigEndian2Int(substr($OldRAheaderData, 48, 4)); $ParsedArray['sample_rate2'] = getid3_lib::BigEndian2Int(substr($OldRAheaderData, 52, 4)); $ParsedArray['bits_per_sample'] = getid3_lib::BigEndian2Int(substr($OldRAheaderData, 56, 4)); $ParsedArray['channels'] = getid3_lib::BigEndian2Int(substr($OldRAheaderData, 60, 2)); $ParsedArray['genr'] = substr($OldRAheaderData, 62, 4); $ParsedArray['fourcc3'] = substr($OldRAheaderData, 66, 4); $ParsedArray['comments'] = array(); break; } $ParsedArray['fourcc'] = $ParsedArray['fourcc3']; } foreach ($ParsedArray['comments'] as $key => $value) { if ($ParsedArray['comments'][$key][0] === false) { $ParsedArray['comments'][$key][0] = ''; } } return true; } public function RealAudioCodecFourCClookup($fourcc, $bitrate) { static $RealAudioCodecFourCClookup = array(); if (empty($RealAudioCodecFourCClookup)) { // http://www.its.msstate.edu/net/real/reports/config/tags.stats // http://www.freelists.org/archives/matroska-devel/06-2003/fullthread18.html $RealAudioCodecFourCClookup['14_4'][8000] = 'RealAudio v2 (14.4kbps)'; $RealAudioCodecFourCClookup['14.4'][8000] = 'RealAudio v2 (14.4kbps)'; $RealAudioCodecFourCClookup['lpcJ'][8000] = 'RealAudio v2 (14.4kbps)'; $RealAudioCodecFourCClookup['28_8'][15200] = 'RealAudio v2 (28.8kbps)'; $RealAudioCodecFourCClookup['28.8'][15200] = 'RealAudio v2 (28.8kbps)'; $RealAudioCodecFourCClookup['sipr'][4933] = 'RealAudio v4 (5kbps Voice)'; $RealAudioCodecFourCClookup['sipr'][6444] = 'RealAudio v4 (6.5kbps Voice)'; $RealAudioCodecFourCClookup['sipr'][8444] = 'RealAudio v4 (8.5kbps Voice)'; $RealAudioCodecFourCClookup['sipr'][16000] = 'RealAudio v4 (16kbps Wideband)'; $RealAudioCodecFourCClookup['dnet'][8000] = 'RealAudio v3 (8kbps Music)'; $RealAudioCodecFourCClookup['dnet'][16000] = 'RealAudio v3 (16kbps Music Low Response)'; $RealAudioCodecFourCClookup['dnet'][15963] = 'RealAudio v3 (16kbps Music Mid/High Response)'; $RealAudioCodecFourCClookup['dnet'][20000] = 'RealAudio v3 (20kbps Music Stereo)'; $RealAudioCodecFourCClookup['dnet'][32000] = 'RealAudio v3 (32kbps Music Mono)'; $RealAudioCodecFourCClookup['dnet'][31951] = 'RealAudio v3 (32kbps Music Stereo)'; $RealAudioCodecFourCClookup['dnet'][39965] = 'RealAudio v3 (40kbps Music Mono)'; $RealAudioCodecFourCClookup['dnet'][40000] = 'RealAudio v3 (40kbps Music Stereo)'; $RealAudioCodecFourCClookup['dnet'][79947] = 'RealAudio v3 (80kbps Music Mono)'; $RealAudioCodecFourCClookup['dnet'][80000] = 'RealAudio v3 (80kbps Music Stereo)'; $RealAudioCodecFourCClookup['dnet'][0] = 'RealAudio v3'; $RealAudioCodecFourCClookup['sipr'][0] = 'RealAudio v4'; $RealAudioCodecFourCClookup['cook'][0] = 'RealAudio G2'; $RealAudioCodecFourCClookup['atrc'][0] = 'RealAudio 8'; } $roundbitrate = intval(round($bitrate)); if (isset($RealAudioCodecFourCClookup[$fourcc][$roundbitrate])) { return $RealAudioCodecFourCClookup[$fourcc][$roundbitrate]; } elseif (isset($RealAudioCodecFourCClookup[$fourcc][0])) { return $RealAudioCodecFourCClookup[$fourcc][0]; } return $fourcc; } }