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<?php |
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// +----------------------------------------------------------------------+ |
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// | PHP version 5 | |
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// +----------------------------------------------------------------------+ |
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// | Copyright (c) 2002-2006 James Heinrich, Allan Hansen | |
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// +----------------------------------------------------------------------+ |
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// | This source file is subject to version 2 of the GPL license, | |
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// | that is bundled with this package in the file license.txt and is | |
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// | available through the world-wide-web at the following url: | |
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// | http://www.gnu.org/copyleft/gpl.html | |
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// +----------------------------------------------------------------------+ |
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// | getID3() - http://getid3.sourceforge.net or http://www.getid3.org | |
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// +----------------------------------------------------------------------+ |
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// | Authors: James Heinrich <info�getid3*org> | |
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// | Allan Hansen <ah�artemis*dk> | |
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// +----------------------------------------------------------------------+ |
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// | module.audio-video.real.php | |
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// | Module for analyzing Real Audio/Video files | |
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// | dependencies: module.audio-video.riff.php | |
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// +----------------------------------------------------------------------+ |
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// |
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// $Id: module.audio-video.real.php,v 1.4 2006/11/02 10:48:00 ah Exp $ |
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class getid3_real extends getid3_handler |
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{ |
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public function Analyze() |
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{ |
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$getid3 = $this->getid3; |
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$getid3->include_module('audio-video.riff'); |
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$getid3->info['fileformat'] = 'real'; |
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$getid3->info['bitrate'] = 0; |
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$getid3->info['playtime_seconds'] = 0; |
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fseek($getid3->fp, $getid3->info['avdataoffset'], SEEK_SET); |
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$chunk_counter = 0; |
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while (ftell($getid3->fp) < $getid3->info['avdataend']) { |
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$chunk_data = fread($getid3->fp, 8); |
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$chunk_name = substr($chunk_data, 0, 4); |
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$chunk_size = getid3_lib::BigEndian2Int(substr($chunk_data, 4, 4)); |
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if ($chunk_name == '.ra' . "\xFD") { |
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$chunk_data .= fread($getid3->fp, $chunk_size - 8); |
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if ($this->ParseOldRAheader(substr($chunk_data, 0, 128), $getid3->info['real']['old_ra_header'])) { |
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$getid3->info['audio']['dataformat'] = 'real'; |
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$getid3->info['audio']['lossless'] = false; |
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$getid3->info['audio']['sample_rate'] = $getid3->info['real']['old_ra_header']['sample_rate']; |
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$getid3->info['audio']['bits_per_sample'] = $getid3->info['real']['old_ra_header']['bits_per_sample']; |
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$getid3->info['audio']['channels'] = $getid3->info['real']['old_ra_header']['channels']; |
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$getid3->info['playtime_seconds'] = 60 * ($getid3->info['real']['old_ra_header']['audio_bytes'] / $getid3->info['real']['old_ra_header']['bytes_per_minute']); |
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$getid3->info['audio']['bitrate'] = 8 * ($getid3->info['real']['old_ra_header']['audio_bytes'] / $getid3->info['playtime_seconds']); |
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$getid3->info['audio']['codec'] = $this->RealAudioCodecFourCClookup($getid3->info['real']['old_ra_header']['fourcc'], $getid3->info['audio']['bitrate']); |
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foreach ($getid3->info['real']['old_ra_header']['comments'] as $key => $value_array) { |
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if (strlen(trim($value_array[0])) > 0) { |
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$getid3->info['real']['comments'][$key][] = trim($value_array[0]); |
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} |
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} |
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return true; |
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} |
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throw new getid3_exception('There was a problem parsing this RealAudio file. Please submit it for analysis to http://www.getid3.org/upload/ or [email protected]'); |
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} |
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$getid3->info['real']['chunks'][$chunk_counter] = []; |
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$info_real_chunks_current_chunk = &$getid3->info['real']['chunks'][$chunk_counter]; |
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$info_real_chunks_current_chunk['name'] = $chunk_name; |
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$info_real_chunks_current_chunk['offset'] = ftell($getid3->fp) - 8; |
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$info_real_chunks_current_chunk['length'] = $chunk_size; |
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if (($info_real_chunks_current_chunk['offset'] + $info_real_chunks_current_chunk['length']) > $getid3->info['avdataend']) { |
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$getid3->warning('Chunk "' . $info_real_chunks_current_chunk['name'] . '" at offset ' . $info_real_chunks_current_chunk['offset'] . ' claims to be ' . $info_real_chunks_current_chunk['length'] . ' bytes long, which is beyond end of file'); |
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return false; |
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} |
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if ($chunk_size > (getid3::FREAD_BUFFER_SIZE + 8)) { |
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$chunk_data .= fread($getid3->fp, getid3::FREAD_BUFFER_SIZE - 8); |
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fseek($getid3->fp, $info_real_chunks_current_chunk['offset'] + $chunk_size, SEEK_SET); |
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} elseif (($chunk_size - 8) > 0) { |
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$chunk_data .= fread($getid3->fp, $chunk_size - 8); |
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} |
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$offset = 8; |
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switch ($chunk_name) { |
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case '.RMF': // RealMedia File Header |
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$info_real_chunks_current_chunk['object_version'] = getid3_lib::BigEndian2Int(substr($chunk_data, $offset, 2)); |
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$offset += 2; |
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switch ($info_real_chunks_current_chunk['object_version']) { |
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case 0: |
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$info_real_chunks_current_chunk['file_version'] = getid3_lib::BigEndian2Int(substr($chunk_data, $offset, 4)); |
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$offset += 4; |
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$info_real_chunks_current_chunk['headers_count'] = getid3_lib::BigEndian2Int(substr($chunk_data, $offset, 4)); |
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$offset += 4; |
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break; |
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default: |
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//$getid3->warning('Expected .RMF-object_version to be "0", actual value is "'.$info_real_chunks_current_chunk['object_version'].'" (should not be a problem)'; |
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break; |
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} |
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break; |
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case 'PROP': // Properties Header |
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$info_real_chunks_current_chunk['object_version'] = getid3_lib::BigEndian2Int(substr($chunk_data, $offset, 2)); |
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$offset += 2; |
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if (0 == $info_real_chunks_current_chunk['object_version']) { |
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getid3_lib::ReadSequence( |
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'BigEndian2Int', |
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$info_real_chunks_current_chunk, |
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$chunk_data, |
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$offset, |
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[ |
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'max_bit_rate' => 4, |
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'avg_bit_rate' => 4, |
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'max_packet_size' => 4, |
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'avg_packet_size' => 4, |
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'num_packets' => 4, |
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'duration' => 4, |
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'preroll' => 4, |
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'index_offset' => 4, |
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'data_offset' => 4, |
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'num_streams' => 2, |
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'flags_raw' => 2 |
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] |
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); |
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$offset += 40; |
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$getid3->info['playtime_seconds'] = $info_real_chunks_current_chunk['duration'] / 1000; |
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if ($info_real_chunks_current_chunk['duration'] > 0) { |
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$getid3->info['bitrate'] += $info_real_chunks_current_chunk['avg_bit_rate']; |
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} |
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$info_real_chunks_current_chunk['flags']['save_enabled'] = (bool)($info_real_chunks_current_chunk['flags_raw'] & 0x0001); |
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$info_real_chunks_current_chunk['flags']['perfect_play'] = (bool)($info_real_chunks_current_chunk['flags_raw'] & 0x0002); |
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$info_real_chunks_current_chunk['flags']['live_broadcast'] = (bool)($info_real_chunks_current_chunk['flags_raw'] & 0x0004); |
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} |
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break; |
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case 'MDPR': // Media Properties Header |
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$info_real_chunks_current_chunk['object_version'] = getid3_lib::BigEndian2Int(substr($chunk_data, $offset, 2)); |
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$offset += 2; |
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if (0 == $info_real_chunks_current_chunk['object_version']) { |
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getid3_lib::ReadSequence( |
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'BigEndian2Int', |
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$info_real_chunks_current_chunk, |
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$chunk_data, |
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$offset, |
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[ |
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'stream_number' => 2, |
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'max_bit_rate' => 4, |
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'avg_bit_rate' => 4, |
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'max_packet_size' => 4, |
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'avg_packet_size' => 4, |
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'start_time' => 4, |
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'preroll' => 4, |
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'duration' => 4, |
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'stream_name_size' => 1 |
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] |
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); |
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$offset += 31; |
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$info_real_chunks_current_chunk['stream_name'] = substr($chunk_data, $offset, $info_real_chunks_current_chunk['stream_name_size']); |
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$offset += $info_real_chunks_current_chunk['stream_name_size']; |
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$info_real_chunks_current_chunk['mime_type_size'] = getid3_lib::BigEndian2Int($chunk_data{$offset++}); |
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$info_real_chunks_current_chunk['mime_type'] = substr($chunk_data, $offset, $info_real_chunks_current_chunk['mime_type_size']); |
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$offset += $info_real_chunks_current_chunk['mime_type_size']; |
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$info_real_chunks_current_chunk['type_specific_len'] = getid3_lib::BigEndian2Int(substr($chunk_data, $offset, 4)); |
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$offset += 4; |
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$info_real_chunks_current_chunk['type_specific_data'] = substr($chunk_data, $offset, $info_real_chunks_current_chunk['type_specific_len']); |
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$offset += $info_real_chunks_current_chunk['type_specific_len']; |
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$info_real_chunks_current_chunk_typespecificdata = &$info_real_chunks_current_chunk['type_specific_data']; |
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switch ($info_real_chunks_current_chunk['mime_type']) { |
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case 'video/x-pn-realvideo': |
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case 'video/x-pn-multirate-realvideo': |
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// http://www.freelists.org/archives/matroska-devel/07-2003/msg00010.html |
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$info_real_chunks_current_chunk['video_info'] = []; |
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$info_real_chunks_current_chunk_video_info = &$info_real_chunks_current_chunk['video_info']; |
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getid3_lib::ReadSequence( |
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'BigEndian2Int', |
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$info_real_chunks_current_chunk_video_info, |
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$info_real_chunks_current_chunk_typespecificdata, |
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0, |
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[ |
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'dwSize' => 4, |
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'fourcc1' => -4, |
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'fourcc2' => -4, |
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'width' => 2, |
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'height' => 2, |
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'bits_per_sample' => 2, |
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'IGNORE-unknown1' => 2, |
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'IGNORE-unknown2' => 2, |
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'frames_per_second' => 2, |
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'IGNORE-unknown3' => 2, |
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'IGNORE-unknown4' => 2, |
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'IGNORE-unknown5' => 2, |
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'IGNORE-unknown6' => 2, |
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'IGNORE-unknown7' => 2, |
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'IGNORE-unknown8' => 2, |
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'IGNORE-unknown9' => 2 |
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] |
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); |
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$info_real_chunks_current_chunk_video_info['codec'] = getid3_riff::RIFFfourccLookup($info_real_chunks_current_chunk_video_info['fourcc2']); |
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$getid3->info['video']['resolution_x'] = $info_real_chunks_current_chunk_video_info['width']; |
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$getid3->info['video']['resolution_y'] = $info_real_chunks_current_chunk_video_info['height']; |
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$getid3->info['video']['frame_rate'] = (float)$info_real_chunks_current_chunk_video_info['frames_per_second']; |
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$getid3->info['video']['codec'] = $info_real_chunks_current_chunk_video_info['codec']; |
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$getid3->info['video']['bits_per_sample'] = $info_real_chunks_current_chunk_video_info['bits_per_sample']; |
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break; |
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232
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case 'audio/x-pn-realaudio': |
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case 'audio/x-pn-multirate-realaudio': |
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235
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$this->ParseOldRAheader($info_real_chunks_current_chunk_typespecificdata, $info_real_chunks_current_chunk['parsed_audio_data']); |
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236
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237
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$getid3->info['audio']['sample_rate'] = $info_real_chunks_current_chunk['parsed_audio_data']['sample_rate']; |
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238
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$getid3->info['audio']['bits_per_sample'] = $info_real_chunks_current_chunk['parsed_audio_data']['bits_per_sample']; |
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239
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$getid3->info['audio']['channels'] = $info_real_chunks_current_chunk['parsed_audio_data']['channels']; |
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240
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241
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if (!empty($getid3->info['audio']['dataformat'])) { |
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242
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foreach ($getid3->info['audio'] as $key => $value) { |
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243
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if ('streams' != $key) { |
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$getid3->info['audio']['streams'][$info_real_chunks_current_chunk['stream_number']][$key] = $value; |
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} |
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} |
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} |
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248
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break; |
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249
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250
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case 'logical-fileinfo': |
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252
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$info_real_chunks_current_chunk['logical_fileinfo']['logical_fileinfo_length'] = getid3_lib::BigEndian2Int(substr($info_real_chunks_current_chunk_typespecificdata, 0, 4)); |
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// $info_real_chunks_current_chunk['logical_fileinfo']['IGNORE-unknown1'] = getid3_lib::BigEndian2Int(substr($info_real_chunks_current_chunk_typespecificdata, 4, 4)); |
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$info_real_chunks_current_chunk['logical_fileinfo']['num_tags'] = getid3_lib::BigEndian2Int(substr($info_real_chunks_current_chunk_typespecificdata, 8, 4)); |
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255
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// $info_real_chunks_current_chunk['logical_fileinfo']['IGNORE-unknown2'] = getid3_lib::BigEndian2Int(substr($info_real_chunks_current_chunk_typespecificdata, 12, 4)); |
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256
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break; |
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257
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} |
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258
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259
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|
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if (empty($getid3->info['playtime_seconds'])) { |
|
260
|
|
|
$getid3->info['playtime_seconds'] = max($getid3->info['playtime_seconds'], ($info_real_chunks_current_chunk['duration'] + $info_real_chunks_current_chunk['start_time']) / 1000); |
|
261
|
|
|
} |
|
262
|
|
|
|
|
263
|
|
|
if ($info_real_chunks_current_chunk['duration'] > 0) { |
|
264
|
|
|
switch ($info_real_chunks_current_chunk['mime_type']) { |
|
265
|
|
|
case 'audio/x-pn-realaudio': |
|
266
|
|
|
case 'audio/x-pn-multirate-realaudio': |
|
267
|
|
|
|
|
268
|
|
|
$getid3->info['audio']['bitrate'] = (isset($getid3->info['audio']['bitrate']) ? $getid3->info['audio']['bitrate'] : 0) + $info_real_chunks_current_chunk['avg_bit_rate']; |
|
269
|
|
|
$getid3->info['audio']['codec'] = $this->RealAudioCodecFourCClookup($info_real_chunks_current_chunk['parsed_audio_data']['fourcc'], $getid3->info['audio']['bitrate']); |
|
270
|
|
|
$getid3->info['audio']['dataformat'] = 'real'; |
|
271
|
|
|
$getid3->info['audio']['lossless'] = false; |
|
272
|
|
|
break; |
|
273
|
|
|
|
|
274
|
|
|
case 'video/x-pn-realvideo': |
|
275
|
|
|
case 'video/x-pn-multirate-realvideo': |
|
276
|
|
|
|
|
277
|
|
|
$getid3->info['video']['bitrate'] = (isset($getid3->info['video']['bitrate']) ? $getid3->info['video']['bitrate'] : 0) + $info_real_chunks_current_chunk['avg_bit_rate']; |
|
278
|
|
|
$getid3->info['video']['bitrate_mode'] = 'cbr'; |
|
279
|
|
|
$getid3->info['video']['dataformat'] = 'real'; |
|
280
|
|
|
$getid3->info['video']['lossless'] = false; |
|
281
|
|
|
$getid3->info['video']['pixel_aspect_ratio'] = (float)1; |
|
282
|
|
|
break; |
|
283
|
|
|
|
|
284
|
|
|
case 'audio/x-ralf-mpeg4-generic': |
|
285
|
|
|
|
|
286
|
|
|
$getid3->info['audio']['bitrate'] = (isset($getid3->info['audio']['bitrate']) ? $getid3->info['audio']['bitrate'] : 0) + $info_real_chunks_current_chunk['avg_bit_rate']; |
|
287
|
|
|
$getid3->info['audio']['codec'] = 'RealAudio Lossless'; |
|
288
|
|
|
$getid3->info['audio']['dataformat'] = 'real'; |
|
289
|
|
|
$getid3->info['audio']['lossless'] = true; |
|
290
|
|
|
break; |
|
291
|
|
|
} |
|
292
|
|
|
|
|
293
|
|
|
$getid3->info['bitrate'] = (isset($getid3->info['video']['bitrate']) ? $getid3->info['video']['bitrate'] : 0) + (isset($getid3->info['audio']['bitrate']) ? $getid3->info['audio']['bitrate'] : 0); |
|
294
|
|
|
} |
|
295
|
|
|
} |
|
296
|
|
|
break; |
|
297
|
|
|
|
|
298
|
|
|
case 'CONT': // Content Description Header (text comments) |
|
299
|
|
|
|
|
300
|
|
|
$info_real_chunks_current_chunk['object_version'] = getid3_lib::BigEndian2Int(substr($chunk_data, $offset, 2)); |
|
301
|
|
|
$offset += 2; |
|
302
|
|
|
|
|
303
|
|
|
if (0 == $info_real_chunks_current_chunk['object_version']) { |
|
304
|
|
|
$info_real_chunks_current_chunk['title_len'] = getid3_lib::BigEndian2Int(substr($chunk_data, $offset, 2)); |
|
305
|
|
|
$offset += 2; |
|
306
|
|
|
|
|
307
|
|
|
$info_real_chunks_current_chunk['title'] = (string)substr($chunk_data, $offset, $info_real_chunks_current_chunk['title_len']); |
|
308
|
|
|
$offset += $info_real_chunks_current_chunk['title_len']; |
|
309
|
|
|
|
|
310
|
|
|
$info_real_chunks_current_chunk['artist_len'] = getid3_lib::BigEndian2Int(substr($chunk_data, $offset, 2)); |
|
311
|
|
|
$offset += 2; |
|
312
|
|
|
|
|
313
|
|
|
$info_real_chunks_current_chunk['artist'] = (string)substr($chunk_data, $offset, $info_real_chunks_current_chunk['artist_len']); |
|
314
|
|
|
$offset += $info_real_chunks_current_chunk['artist_len']; |
|
315
|
|
|
|
|
316
|
|
|
$info_real_chunks_current_chunk['copyright_len'] = getid3_lib::BigEndian2Int(substr($chunk_data, $offset, 2)); |
|
317
|
|
|
$offset += 2; |
|
318
|
|
|
|
|
319
|
|
|
$info_real_chunks_current_chunk['copyright'] = (string)substr($chunk_data, $offset, $info_real_chunks_current_chunk['copyright_len']); |
|
320
|
|
|
$offset += $info_real_chunks_current_chunk['copyright_len']; |
|
321
|
|
|
|
|
322
|
|
|
$info_real_chunks_current_chunk['comment_len'] = getid3_lib::BigEndian2Int(substr($chunk_data, $offset, 2)); |
|
323
|
|
|
$offset += 2; |
|
324
|
|
|
|
|
325
|
|
|
$info_real_chunks_current_chunk['comment'] = (string)substr($chunk_data, $offset, $info_real_chunks_current_chunk['comment_len']); |
|
326
|
|
|
$offset += $info_real_chunks_current_chunk['comment_len']; |
|
327
|
|
|
|
|
328
|
|
|
foreach (['title' => 'title', 'artist' => 'artist', 'copyright' => 'copyright', 'comment' => 'comment'] as $key => $val) { |
|
329
|
|
|
if ($info_real_chunks_current_chunk[$key]) { |
|
330
|
|
|
$getid3->info['real']['comments'][$val][] = trim($info_real_chunks_current_chunk[$key]); |
|
331
|
|
|
} |
|
332
|
|
|
} |
|
333
|
|
|
} |
|
334
|
|
|
break; |
|
335
|
|
|
|
|
336
|
|
|
case 'DATA': // Data Chunk Header |
|
337
|
|
|
|
|
338
|
|
|
// do nothing |
|
339
|
|
|
break; |
|
340
|
|
|
|
|
341
|
|
|
case 'INDX': // Index Section Header |
|
342
|
|
|
|
|
343
|
|
|
$info_real_chunks_current_chunk['object_version'] = getid3_lib::BigEndian2Int(substr($chunk_data, $offset, 2)); |
|
344
|
|
|
$offset += 2; |
|
345
|
|
|
|
|
346
|
|
|
if (0 == $info_real_chunks_current_chunk['object_version']) { |
|
347
|
|
|
getid3_lib::ReadSequence( |
|
348
|
|
|
'BigEndian2Int', |
|
349
|
|
|
$info_real_chunks_current_chunk, |
|
350
|
|
|
$chunk_data, |
|
351
|
|
|
$offset, |
|
352
|
|
|
[ |
|
353
|
|
|
'num_indices' => 4, |
|
354
|
|
|
'stream_number' => 2, |
|
355
|
|
|
'next_index_header' => 4 |
|
356
|
|
|
] |
|
357
|
|
|
); |
|
358
|
|
|
$offset += 10; |
|
359
|
|
|
|
|
360
|
|
|
if (0 == $info_real_chunks_current_chunk['next_index_header']) { |
|
361
|
|
|
// last index chunk found, ignore rest of file |
|
362
|
|
|
break 2; |
|
363
|
|
|
} else { |
|
364
|
|
|
// non-last index chunk, seek to next index chunk (skipping actual index data) |
|
365
|
|
|
fseek($getid3->fp, $info_real_chunks_current_chunk['next_index_header'], SEEK_SET); |
|
366
|
|
|
} |
|
367
|
|
|
} |
|
368
|
|
|
break; |
|
369
|
|
|
|
|
370
|
|
|
default: |
|
371
|
|
|
$getid3->warning('Unhandled RealMedia chunk "' . $chunk_name . '" at offset ' . $info_real_chunks_current_chunk['offset']); |
|
372
|
|
|
break; |
|
373
|
|
|
} |
|
374
|
|
|
$chunk_counter++; |
|
375
|
|
|
} |
|
376
|
|
|
|
|
377
|
|
|
if (!empty($getid3->info['audio']['streams'])) { |
|
378
|
|
|
$getid3->info['audio']['bitrate'] = 0; |
|
379
|
|
|
|
|
380
|
|
|
foreach ($getid3->info['audio']['streams'] as $key => $value_array) { |
|
381
|
|
|
$getid3->info['audio']['bitrate'] += $value_array['bitrate']; |
|
382
|
|
|
} |
|
383
|
|
|
} |
|
384
|
|
|
|
|
385
|
|
|
return true; |
|
386
|
|
|
} |
|
387
|
|
|
|
|
388
|
|
|
public static function ParseOldRAheader($old_ra_header_data, &$parsed_array) |
|
389
|
|
|
{ |
|
390
|
|
|
// http://www.freelists.org/archives/matroska-devel/07-2003/msg00010.html |
|
391
|
|
|
|
|
392
|
|
|
$parsed_array = []; |
|
393
|
|
|
$parsed_array['magic'] = substr($old_ra_header_data, 0, 4); |
|
394
|
|
|
|
|
395
|
|
|
if ($parsed_array['magic'] != '.ra' . "\xFD") { |
|
396
|
|
|
return false; |
|
397
|
|
|
} |
|
398
|
|
|
|
|
399
|
|
|
$parsed_array['version1'] = getid3_lib::BigEndian2Int(substr($old_ra_header_data, 4, 2)); |
|
400
|
|
|
|
|
401
|
|
|
if ($parsed_array['version1'] < 3) { |
|
402
|
|
|
return false; |
|
403
|
|
|
} |
|
404
|
|
|
|
|
405
|
|
|
if (3 == $parsed_array['version1']) { |
|
406
|
|
|
$parsed_array['fourcc1'] = '.ra3'; |
|
407
|
|
|
$parsed_array['bits_per_sample'] = 16; // hard-coded for old versions? |
|
408
|
|
|
$parsed_array['sample_rate'] = 8000; // hard-coded for old versions? |
|
409
|
|
|
|
|
410
|
|
|
getid3_lib::ReadSequence( |
|
411
|
|
|
'BigEndian2Int', |
|
412
|
|
|
$parsed_array, |
|
413
|
|
|
$old_ra_header_data, |
|
414
|
|
|
6, |
|
415
|
|
|
[ |
|
416
|
|
|
'header_size' => 2, |
|
417
|
|
|
'channels' => 2, // always 1 (?) |
|
418
|
|
|
'IGNORE-unknown1' => 2, |
|
419
|
|
|
'IGNORE-unknown2' => 2, |
|
420
|
|
|
'IGNORE-unknown3' => 2, |
|
421
|
|
|
'bytes_per_minute' => 2, |
|
422
|
|
|
'audio_bytes' => 4, |
|
423
|
|
|
] |
|
424
|
|
|
); |
|
425
|
|
|
|
|
426
|
|
|
$parsed_array['comments_raw'] = substr($old_ra_header_data, 22, $parsed_array['header_size'] - 22 + 1); // not including null terminator |
|
427
|
|
|
|
|
428
|
|
|
$comment_offset = 0; |
|
429
|
|
|
|
|
430
|
|
|
foreach (['title', 'artist', 'copyright'] as $name) { |
|
431
|
|
|
$comment_length = getid3_lib::BigEndian2Int($parsed_array['comments_raw']{$comment_offset++}); |
|
432
|
|
|
$parsed_array['comments'][$name][] = substr($parsed_array['comments_raw'], $comment_offset, $comment_length); |
|
433
|
|
|
$comment_offset += $comment_length; |
|
434
|
|
|
} |
|
435
|
|
|
|
|
436
|
|
|
$comment_offset++; // final null terminator (?) |
|
437
|
|
|
$comment_offset++; // fourcc length (?) should be 4 |
|
438
|
|
|
|
|
439
|
|
|
$parsed_array['fourcc'] = substr($old_ra_header_data, 23 + $comment_offset, 4); |
|
440
|
|
|
} elseif ($parsed_array['version1'] <= 5) { |
|
441
|
|
|
getid3_lib::ReadSequence( |
|
442
|
|
|
'BigEndian2Int', |
|
443
|
|
|
$parsed_array, |
|
444
|
|
|
$old_ra_header_data, |
|
445
|
|
|
6, |
|
446
|
|
|
[ |
|
447
|
|
|
'IGNORE-unknown1' => 2, |
|
448
|
|
|
'fourcc1' => -4, |
|
449
|
|
|
'file_size' => 4, |
|
450
|
|
|
'version2' => 2, |
|
451
|
|
|
'header_size' => 4, |
|
452
|
|
|
'codec_flavor_id' => 2, |
|
453
|
|
|
'coded_frame_size' => 4, |
|
454
|
|
|
'audio_bytes' => 4, |
|
455
|
|
|
'bytes_per_minute' => 4, |
|
456
|
|
|
'IGNORE-unknown5' => 4, |
|
457
|
|
|
'sub_packet_h' => 2, |
|
458
|
|
|
'frame_size' => 2, |
|
459
|
|
|
'sub_packet_size' => 2, |
|
460
|
|
|
'IGNORE-unknown6' => 2 |
|
461
|
|
|
] |
|
462
|
|
|
); |
|
463
|
|
|
|
|
464
|
|
|
switch ($parsed_array['version1']) { |
|
465
|
|
|
case 4: |
|
466
|
|
|
|
|
467
|
|
|
getid3_lib::ReadSequence( |
|
468
|
|
|
'BigEndian2Int', |
|
469
|
|
|
$parsed_array, |
|
470
|
|
|
$old_ra_header_data, |
|
471
|
|
|
48, |
|
472
|
|
|
[ |
|
473
|
|
|
'sample_rate' => 2, |
|
474
|
|
|
'IGNORE-unknown8' => 2, |
|
475
|
|
|
'bits_per_sample' => 2, |
|
476
|
|
|
'channels' => 2, |
|
477
|
|
|
'length_fourcc2' => 1, |
|
478
|
|
|
'fourcc2' => -4, |
|
479
|
|
|
'length_fourcc3' => 1, |
|
480
|
|
|
'fourcc3' => -4, |
|
481
|
|
|
'IGNORE-unknown9' => 1, |
|
482
|
|
|
'IGNORE-unknown10' => 2, |
|
483
|
|
|
] |
|
484
|
|
|
); |
|
485
|
|
|
|
|
486
|
|
|
$parsed_array['comments_raw'] = substr($old_ra_header_data, 69, $parsed_array['header_size'] - 69 + 16); |
|
487
|
|
|
|
|
488
|
|
|
$comment_offset = 0; |
|
489
|
|
|
|
|
490
|
|
|
foreach (['title', 'artist', 'copyright'] as $name) { |
|
491
|
|
|
$comment_length = getid3_lib::BigEndian2Int($parsed_array['comments_raw']{$comment_offset++}); |
|
492
|
|
|
$parsed_array['comments'][$name][] = substr($parsed_array['comments_raw'], $comment_offset, $comment_length); |
|
493
|
|
|
$comment_offset += $comment_length; |
|
494
|
|
|
} |
|
495
|
|
|
break; |
|
496
|
|
|
|
|
497
|
|
|
case 5: |
|
498
|
|
|
|
|
499
|
|
|
getid3_lib::ReadSequence( |
|
500
|
|
|
'BigEndian2Int', |
|
501
|
|
|
$parsed_array, |
|
502
|
|
|
$old_ra_header_data, |
|
503
|
|
|
48, |
|
504
|
|
|
[ |
|
505
|
|
|
'sample_rate' => 4, |
|
506
|
|
|
'sample_rate2' => 4, |
|
507
|
|
|
'bits_per_sample' => 4, |
|
508
|
|
|
'channels' => 2, |
|
509
|
|
|
'genr' => -4, |
|
510
|
|
|
'fourcc3' => -4, |
|
511
|
|
|
] |
|
512
|
|
|
); |
|
513
|
|
|
$parsed_array['comments'] = []; |
|
514
|
|
|
break; |
|
515
|
|
|
} |
|
516
|
|
|
|
|
517
|
|
|
$parsed_array['fourcc'] = $parsed_array['fourcc3']; |
|
518
|
|
|
} |
|
519
|
|
|
|
|
520
|
|
|
foreach ($parsed_array['comments'] as $key => $value) { |
|
521
|
|
|
if (false === $parsed_array['comments'][$key][0]) { |
|
522
|
|
|
$parsed_array['comments'][$key][0] = ''; |
|
523
|
|
|
} |
|
524
|
|
|
} |
|
525
|
|
|
|
|
526
|
|
|
return true; |
|
527
|
|
|
} |
|
528
|
|
|
|
|
529
|
|
|
public static function RealAudioCodecFourCClookup($fourcc, $bitrate) |
|
530
|
|
|
{ |
|
531
|
|
|
// http://www.its.msstate.edu/net/real/reports/config/tags.stats |
|
532
|
|
|
// http://www.freelists.org/archives/matroska-devel/06-2003/fullthread18.html |
|
533
|
|
|
|
|
534
|
|
|
static $lookup; |
|
535
|
|
|
|
|
536
|
|
|
if (empty($lookup)) { |
|
537
|
|
|
$lookup['14_4'][8000] = 'RealAudio v2 (14.4kbps)'; |
|
538
|
|
|
$lookup['14.4'][8000] = 'RealAudio v2 (14.4kbps)'; |
|
539
|
|
|
$lookup['lpcJ'][8000] = 'RealAudio v2 (14.4kbps)'; |
|
540
|
|
|
$lookup['28_8'][15200] = 'RealAudio v2 (28.8kbps)'; |
|
541
|
|
|
$lookup['28.8'][15200] = 'RealAudio v2 (28.8kbps)'; |
|
542
|
|
|
$lookup['sipr'][4933] = 'RealAudio v4 (5kbps Voice)'; |
|
543
|
|
|
$lookup['sipr'][6444] = 'RealAudio v4 (6.5kbps Voice)'; |
|
544
|
|
|
$lookup['sipr'][8444] = 'RealAudio v4 (8.5kbps Voice)'; |
|
545
|
|
|
$lookup['sipr'][16000] = 'RealAudio v4 (16kbps Wideband)'; |
|
546
|
|
|
$lookup['dnet'][8000] = 'RealAudio v3 (8kbps Music)'; |
|
547
|
|
|
$lookup['dnet'][16000] = 'RealAudio v3 (16kbps Music Low Response)'; |
|
548
|
|
|
$lookup['dnet'][15963] = 'RealAudio v3 (16kbps Music Mid/High Response)'; |
|
549
|
|
|
$lookup['dnet'][20000] = 'RealAudio v3 (20kbps Music Stereo)'; |
|
550
|
|
|
$lookup['dnet'][32000] = 'RealAudio v3 (32kbps Music Mono)'; |
|
551
|
|
|
$lookup['dnet'][31951] = 'RealAudio v3 (32kbps Music Stereo)'; |
|
552
|
|
|
$lookup['dnet'][39965] = 'RealAudio v3 (40kbps Music Mono)'; |
|
553
|
|
|
$lookup['dnet'][40000] = 'RealAudio v3 (40kbps Music Stereo)'; |
|
554
|
|
|
$lookup['dnet'][79947] = 'RealAudio v3 (80kbps Music Mono)'; |
|
555
|
|
|
$lookup['dnet'][80000] = 'RealAudio v3 (80kbps Music Stereo)'; |
|
556
|
|
|
|
|
557
|
|
|
$lookup['dnet'][0] = 'RealAudio v3'; |
|
558
|
|
|
$lookup['sipr'][0] = 'RealAudio v4'; |
|
559
|
|
|
$lookup['cook'][0] = 'RealAudio G2'; |
|
560
|
|
|
$lookup['atrc'][0] = 'RealAudio 8'; |
|
561
|
|
|
} |
|
562
|
|
|
|
|
563
|
|
|
$round_bitrate = intval(round($bitrate)); |
|
564
|
|
|
|
|
565
|
|
|
if (isset($lookup[$fourcc][$round_bitrate])) { |
|
566
|
|
|
return $lookup[$fourcc][$round_bitrate]; |
|
567
|
|
|
} |
|
568
|
|
|
|
|
569
|
|
|
if (isset($lookup[$fourcc][0])) { |
|
570
|
|
|
return $lookup[$fourcc][0]; |
|
571
|
|
|
} |
|
572
|
|
|
|
|
573
|
|
|
return $fourcc; |
|
574
|
|
|
} |
|
575
|
|
|
|
|
576
|
|
|
} |
|
577
|
|
|
|
|
578
|
|
|
|
|
579
|
|
|
|
mambax7 /
xoopseditors
