Mercurial > judyates
diff e2gallerypro/e2upload/Backend/Assets/getid3/module.audio-video.real.php @ 3:3f6b44aa6b35 judyates
[svn r4] added ability to buy stuff, from a Prints page, but it doesn't work well with the css, and it also has not been fitted into the perl make system.
| author | rlm |
|---|---|
| date | Mon, 22 Feb 2010 08:02:39 -0500 |
| parents | |
| children |
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1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000 1.2 +++ b/e2gallerypro/e2upload/Backend/Assets/getid3/module.audio-video.real.php Mon Feb 22 08:02:39 2010 -0500 1.3 @@ -0,0 +1,591 @@ 1.4 +<?php 1.5 +// +----------------------------------------------------------------------+ 1.6 +// | PHP version 5 | 1.7 +// +----------------------------------------------------------------------+ 1.8 +// | Copyright (c) 2002-2006 James Heinrich, Allan Hansen | 1.9 +// +----------------------------------------------------------------------+ 1.10 +// | This source file is subject to version 2 of the GPL license, | 1.11 +// | that is bundled with this package in the file license.txt and is | 1.12 +// | available through the world-wide-web at the following url: | 1.13 +// | http://www.gnu.org/copyleft/gpl.html | 1.14 +// +----------------------------------------------------------------------+ 1.15 +// | getID3() - http://getid3.sourceforge.net or http://www.getid3.org | 1.16 +// +----------------------------------------------------------------------+ 1.17 +// | Authors: James Heinrich <infoØgetid3*org> | 1.18 +// | Allan Hansen <ahØartemis*dk> | 1.19 +// +----------------------------------------------------------------------+ 1.20 +// | module.audio-video.real.php | 1.21 +// | Module for analyzing Real Audio/Video files | 1.22 +// | dependencies: module.audio-video.riff.php | 1.23 +// +----------------------------------------------------------------------+ 1.24 +// 1.25 +// $Id: module.audio-video.real.php,v 1.4 2006/11/02 10:48:00 ah Exp $ 1.26 + 1.27 + 1.28 + 1.29 +class getid3_real extends getid3_handler 1.30 +{ 1.31 + 1.32 + public function Analyze() { 1.33 + 1.34 + $getid3 = $this->getid3; 1.35 + 1.36 + $getid3->include_module('audio-video.riff'); 1.37 + 1.38 + $getid3->info['fileformat'] = 'real'; 1.39 + $getid3->info['bitrate'] = 0; 1.40 + $getid3->info['playtime_seconds'] = 0; 1.41 + 1.42 + fseek($getid3->fp, $getid3->info['avdataoffset'], SEEK_SET); 1.43 + $chunk_counter = 0; 1.44 + 1.45 + while (ftell($getid3->fp) < $getid3->info['avdataend']) { 1.46 + 1.47 + $chunk_data = fread($getid3->fp, 8); 1.48 + $chunk_name = substr($chunk_data, 0, 4); 1.49 + $chunk_size = getid3_lib::BigEndian2Int(substr($chunk_data, 4, 4)); 1.50 + 1.51 + if ($chunk_name == '.ra'."\xFD") { 1.52 + $chunk_data .= fread($getid3->fp, $chunk_size - 8); 1.53 + 1.54 + if ($this->ParseOldRAheader(substr($chunk_data, 0, 128), $getid3->info['real']['old_ra_header'])) { 1.55 + 1.56 + $getid3->info['audio']['dataformat'] = 'real'; 1.57 + $getid3->info['audio']['lossless'] = false; 1.58 + $getid3->info['audio']['sample_rate'] = $getid3->info['real']['old_ra_header']['sample_rate']; 1.59 + $getid3->info['audio']['bits_per_sample'] = $getid3->info['real']['old_ra_header']['bits_per_sample']; 1.60 + $getid3->info['audio']['channels'] = $getid3->info['real']['old_ra_header']['channels']; 1.61 + 1.62 + $getid3->info['playtime_seconds'] = 60 * ($getid3->info['real']['old_ra_header']['audio_bytes'] / $getid3->info['real']['old_ra_header']['bytes_per_minute']); 1.63 + $getid3->info['audio']['bitrate'] = 8 * ($getid3->info['real']['old_ra_header']['audio_bytes'] / $getid3->info['playtime_seconds']); 1.64 + $getid3->info['audio']['codec'] = $this->RealAudioCodecFourCClookup($getid3->info['real']['old_ra_header']['fourcc'], $getid3->info['audio']['bitrate']); 1.65 + 1.66 + foreach ($getid3->info['real']['old_ra_header']['comments'] as $key => $value_array) { 1.67 + 1.68 + if (strlen(trim($value_array[0])) > 0) { 1.69 + $getid3->info['real']['comments'][$key][] = trim($value_array[0]); 1.70 + } 1.71 + } 1.72 + return true; 1.73 + } 1.74 + 1.75 + throw new getid3_exception('There was a problem parsing this RealAudio file. Please submit it for analysis to http://www.getid3.org/upload/ or info@getid3.org'); 1.76 + } 1.77 + 1.78 + $getid3->info['real']['chunks'][$chunk_counter] = array (); 1.79 + $info_real_chunks_current_chunk = &$getid3->info['real']['chunks'][$chunk_counter]; 1.80 + 1.81 + $info_real_chunks_current_chunk['name'] = $chunk_name; 1.82 + $info_real_chunks_current_chunk['offset'] = ftell($getid3->fp) - 8; 1.83 + $info_real_chunks_current_chunk['length'] = $chunk_size; 1.84 + 1.85 + if (($info_real_chunks_current_chunk['offset'] + $info_real_chunks_current_chunk['length']) > $getid3->info['avdataend']) { 1.86 + $getid3->warning('Chunk "'.$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'); 1.87 + return false; 1.88 + } 1.89 + 1.90 + if ($chunk_size > (getid3::FREAD_BUFFER_SIZE + 8)) { 1.91 + $chunk_data .= fread($getid3->fp, getid3::FREAD_BUFFER_SIZE - 8); 1.92 + fseek($getid3->fp, $info_real_chunks_current_chunk['offset'] + $chunk_size, SEEK_SET); 1.93 + 1.94 + } elseif(($chunk_size - 8) > 0) { 1.95 + $chunk_data .= fread($getid3->fp, $chunk_size - 8); 1.96 + } 1.97 + $offset = 8; 1.98 + 1.99 + switch ($chunk_name) { 1.100 + 1.101 + case '.RMF': // RealMedia File Header 1.102 + 1.103 + $info_real_chunks_current_chunk['object_version'] = getid3_lib::BigEndian2Int(substr($chunk_data, $offset, 2)); 1.104 + $offset += 2; 1.105 + 1.106 + switch ($info_real_chunks_current_chunk['object_version']) { 1.107 + 1.108 + case 0: 1.109 + $info_real_chunks_current_chunk['file_version'] = getid3_lib::BigEndian2Int(substr($chunk_data, $offset, 4)); 1.110 + $offset += 4; 1.111 + 1.112 + $info_real_chunks_current_chunk['headers_count'] = getid3_lib::BigEndian2Int(substr($chunk_data, $offset, 4)); 1.113 + $offset += 4; 1.114 + break; 1.115 + 1.116 + default: 1.117 + //$getid3->warning('Expected .RMF-object_version to be "0", actual value is "'.$info_real_chunks_current_chunk['object_version'].'" (should not be a problem)'; 1.118 + break; 1.119 + 1.120 + } 1.121 + break; 1.122 + 1.123 + 1.124 + case 'PROP': // Properties Header 1.125 + 1.126 + $info_real_chunks_current_chunk['object_version'] = getid3_lib::BigEndian2Int(substr($chunk_data, $offset, 2)); 1.127 + $offset += 2; 1.128 + 1.129 + if ($info_real_chunks_current_chunk['object_version'] == 0) { 1.130 + 1.131 + getid3_lib::ReadSequence('BigEndian2Int', $info_real_chunks_current_chunk, $chunk_data, $offset, 1.132 + array ( 1.133 + 'max_bit_rate' => 4, 1.134 + 'avg_bit_rate' => 4, 1.135 + 'max_packet_size' => 4, 1.136 + 'avg_packet_size' => 4, 1.137 + 'num_packets' => 4, 1.138 + 'duration' => 4, 1.139 + 'preroll' => 4, 1.140 + 'index_offset' => 4, 1.141 + 'data_offset' => 4, 1.142 + 'num_streams' => 2, 1.143 + 'flags_raw' => 2 1.144 + ) 1.145 + ); 1.146 + $offset += 40; 1.147 + 1.148 + $getid3->info['playtime_seconds'] = $info_real_chunks_current_chunk['duration'] / 1000; 1.149 + if ($info_real_chunks_current_chunk['duration'] > 0) { 1.150 + $getid3->info['bitrate'] += $info_real_chunks_current_chunk['avg_bit_rate']; 1.151 + } 1.152 + 1.153 + $info_real_chunks_current_chunk['flags']['save_enabled'] = (bool)($info_real_chunks_current_chunk['flags_raw'] & 0x0001); 1.154 + $info_real_chunks_current_chunk['flags']['perfect_play'] = (bool)($info_real_chunks_current_chunk['flags_raw'] & 0x0002); 1.155 + $info_real_chunks_current_chunk['flags']['live_broadcast'] = (bool)($info_real_chunks_current_chunk['flags_raw'] & 0x0004); 1.156 + } 1.157 + break; 1.158 + 1.159 + 1.160 + case 'MDPR': // Media Properties Header 1.161 + 1.162 + $info_real_chunks_current_chunk['object_version'] = getid3_lib::BigEndian2Int(substr($chunk_data, $offset, 2)); 1.163 + $offset += 2; 1.164 + 1.165 + if ($info_real_chunks_current_chunk['object_version'] == 0) { 1.166 + 1.167 + getid3_lib::ReadSequence('BigEndian2Int', $info_real_chunks_current_chunk, $chunk_data, $offset, 1.168 + array ( 1.169 + 'stream_number' => 2, 1.170 + 'max_bit_rate' => 4, 1.171 + 'avg_bit_rate' => 4, 1.172 + 'max_packet_size' => 4, 1.173 + 'avg_packet_size' => 4, 1.174 + 'start_time' => 4, 1.175 + 'preroll' => 4, 1.176 + 'duration' => 4, 1.177 + 'stream_name_size' => 1 1.178 + ) 1.179 + ); 1.180 + $offset += 31; 1.181 + 1.182 + $info_real_chunks_current_chunk['stream_name'] = substr($chunk_data, $offset, $info_real_chunks_current_chunk['stream_name_size']); 1.183 + $offset += $info_real_chunks_current_chunk['stream_name_size']; 1.184 + 1.185 + $info_real_chunks_current_chunk['mime_type_size'] = getid3_lib::BigEndian2Int($chunk_data{$offset++}); 1.186 + 1.187 + $info_real_chunks_current_chunk['mime_type'] = substr($chunk_data, $offset, $info_real_chunks_current_chunk['mime_type_size']); 1.188 + $offset += $info_real_chunks_current_chunk['mime_type_size']; 1.189 + 1.190 + $info_real_chunks_current_chunk['type_specific_len'] = getid3_lib::BigEndian2Int(substr($chunk_data, $offset, 4)); 1.191 + $offset += 4; 1.192 + 1.193 + $info_real_chunks_current_chunk['type_specific_data'] = substr($chunk_data, $offset, $info_real_chunks_current_chunk['type_specific_len']); 1.194 + $offset += $info_real_chunks_current_chunk['type_specific_len']; 1.195 + 1.196 + $info_real_chunks_current_chunk_typespecificdata = &$info_real_chunks_current_chunk['type_specific_data']; 1.197 + 1.198 + switch ($info_real_chunks_current_chunk['mime_type']) { 1.199 + 1.200 + case 'video/x-pn-realvideo': 1.201 + case 'video/x-pn-multirate-realvideo': 1.202 + // http://www.freelists.org/archives/matroska-devel/07-2003/msg00010.html 1.203 + 1.204 + $info_real_chunks_current_chunk['video_info'] = array (); 1.205 + $info_real_chunks_current_chunk_video_info = &$info_real_chunks_current_chunk['video_info']; 1.206 + 1.207 + getid3_lib::ReadSequence('BigEndian2Int', $info_real_chunks_current_chunk_video_info, $info_real_chunks_current_chunk_typespecificdata, 0, 1.208 + array ( 1.209 + 'dwSize' => 4, 1.210 + 'fourcc1' => -4, 1.211 + 'fourcc2' => -4, 1.212 + 'width' => 2, 1.213 + 'height' => 2, 1.214 + 'bits_per_sample' => 2, 1.215 + 'IGNORE-unknown1' => 2, 1.216 + 'IGNORE-unknown2' => 2, 1.217 + 'frames_per_second' => 2, 1.218 + 'IGNORE-unknown3' => 2, 1.219 + 'IGNORE-unknown4' => 2, 1.220 + 'IGNORE-unknown5' => 2, 1.221 + 'IGNORE-unknown6' => 2, 1.222 + 'IGNORE-unknown7' => 2, 1.223 + 'IGNORE-unknown8' => 2, 1.224 + 'IGNORE-unknown9' => 2 1.225 + ) 1.226 + ); 1.227 + 1.228 + $info_real_chunks_current_chunk_video_info['codec'] = getid3_riff::RIFFfourccLookup($info_real_chunks_current_chunk_video_info['fourcc2']); 1.229 + 1.230 + $getid3->info['video']['resolution_x'] = $info_real_chunks_current_chunk_video_info['width']; 1.231 + $getid3->info['video']['resolution_y'] = $info_real_chunks_current_chunk_video_info['height']; 1.232 + $getid3->info['video']['frame_rate'] = (float)$info_real_chunks_current_chunk_video_info['frames_per_second']; 1.233 + $getid3->info['video']['codec'] = $info_real_chunks_current_chunk_video_info['codec']; 1.234 + $getid3->info['video']['bits_per_sample'] = $info_real_chunks_current_chunk_video_info['bits_per_sample']; 1.235 + break; 1.236 + 1.237 + 1.238 + case 'audio/x-pn-realaudio': 1.239 + case 'audio/x-pn-multirate-realaudio': 1.240 + 1.241 + $this->ParseOldRAheader($info_real_chunks_current_chunk_typespecificdata, $info_real_chunks_current_chunk['parsed_audio_data']); 1.242 + 1.243 + $getid3->info['audio']['sample_rate'] = $info_real_chunks_current_chunk['parsed_audio_data']['sample_rate']; 1.244 + $getid3->info['audio']['bits_per_sample'] = $info_real_chunks_current_chunk['parsed_audio_data']['bits_per_sample']; 1.245 + $getid3->info['audio']['channels'] = $info_real_chunks_current_chunk['parsed_audio_data']['channels']; 1.246 + 1.247 + if (!empty($getid3->info['audio']['dataformat'])) { 1.248 + foreach ($getid3->info['audio'] as $key => $value) { 1.249 + if ($key != 'streams') { 1.250 + $getid3->info['audio']['streams'][$info_real_chunks_current_chunk['stream_number']][$key] = $value; 1.251 + } 1.252 + } 1.253 + } 1.254 + break; 1.255 + 1.256 + 1.257 + case 'logical-fileinfo': 1.258 + 1.259 + $info_real_chunks_current_chunk['logical_fileinfo']['logical_fileinfo_length'] = getid3_lib::BigEndian2Int(substr($info_real_chunks_current_chunk_typespecificdata, 0, 4)); 1.260 + // $info_real_chunks_current_chunk['logical_fileinfo']['IGNORE-unknown1'] = getid3_lib::BigEndian2Int(substr($info_real_chunks_current_chunk_typespecificdata, 4, 4)); 1.261 + $info_real_chunks_current_chunk['logical_fileinfo']['num_tags'] = getid3_lib::BigEndian2Int(substr($info_real_chunks_current_chunk_typespecificdata, 8, 4)); 1.262 + // $info_real_chunks_current_chunk['logical_fileinfo']['IGNORE-unknown2'] = getid3_lib::BigEndian2Int(substr($info_real_chunks_current_chunk_typespecificdata, 12, 4)); 1.263 + break; 1.264 + 1.265 + } 1.266 + 1.267 + 1.268 + if (empty($getid3->info['playtime_seconds'])) { 1.269 + $getid3->info['playtime_seconds'] = max($getid3->info['playtime_seconds'], ($info_real_chunks_current_chunk['duration'] + $info_real_chunks_current_chunk['start_time']) / 1000); 1.270 + } 1.271 + 1.272 + if ($info_real_chunks_current_chunk['duration'] > 0) { 1.273 + 1.274 + switch ($info_real_chunks_current_chunk['mime_type']) { 1.275 + 1.276 + case 'audio/x-pn-realaudio': 1.277 + case 'audio/x-pn-multirate-realaudio': 1.278 + 1.279 + $getid3->info['audio']['bitrate'] = (isset($getid3->info['audio']['bitrate']) ? $getid3->info['audio']['bitrate'] : 0) + $info_real_chunks_current_chunk['avg_bit_rate']; 1.280 + $getid3->info['audio']['codec'] = $this->RealAudioCodecFourCClookup($info_real_chunks_current_chunk['parsed_audio_data']['fourcc'], $getid3->info['audio']['bitrate']); 1.281 + $getid3->info['audio']['dataformat'] = 'real'; 1.282 + $getid3->info['audio']['lossless'] = false; 1.283 + break; 1.284 + 1.285 + 1.286 + case 'video/x-pn-realvideo': 1.287 + case 'video/x-pn-multirate-realvideo': 1.288 + 1.289 + $getid3->info['video']['bitrate'] = (isset($getid3->info['video']['bitrate']) ? $getid3->info['video']['bitrate'] : 0) + $info_real_chunks_current_chunk['avg_bit_rate']; 1.290 + $getid3->info['video']['bitrate_mode'] = 'cbr'; 1.291 + $getid3->info['video']['dataformat'] = 'real'; 1.292 + $getid3->info['video']['lossless'] = false; 1.293 + $getid3->info['video']['pixel_aspect_ratio'] = (float)1; 1.294 + break; 1.295 + 1.296 + 1.297 + case 'audio/x-ralf-mpeg4-generic': 1.298 + 1.299 + $getid3->info['audio']['bitrate'] = (isset($getid3->info['audio']['bitrate']) ? $getid3->info['audio']['bitrate'] : 0) + $info_real_chunks_current_chunk['avg_bit_rate']; 1.300 + $getid3->info['audio']['codec'] = 'RealAudio Lossless'; 1.301 + $getid3->info['audio']['dataformat'] = 'real'; 1.302 + $getid3->info['audio']['lossless'] = true; 1.303 + break; 1.304 + 1.305 + } 1.306 + 1.307 + $getid3->info['bitrate'] = (isset($getid3->info['video']['bitrate']) ? $getid3->info['video']['bitrate'] : 0) + (isset($getid3->info['audio']['bitrate']) ? $getid3->info['audio']['bitrate'] : 0); 1.308 + } 1.309 + } 1.310 + break; 1.311 + 1.312 + 1.313 + case 'CONT': // Content Description Header (text comments) 1.314 + 1.315 + $info_real_chunks_current_chunk['object_version'] = getid3_lib::BigEndian2Int(substr($chunk_data, $offset, 2)); 1.316 + $offset += 2; 1.317 + 1.318 + if ($info_real_chunks_current_chunk['object_version'] == 0) { 1.319 + 1.320 + $info_real_chunks_current_chunk['title_len'] = getid3_lib::BigEndian2Int(substr($chunk_data, $offset, 2)); 1.321 + $offset += 2; 1.322 + 1.323 + $info_real_chunks_current_chunk['title'] = (string) substr($chunk_data, $offset, $info_real_chunks_current_chunk['title_len']); 1.324 + $offset += $info_real_chunks_current_chunk['title_len']; 1.325 + 1.326 + $info_real_chunks_current_chunk['artist_len'] = getid3_lib::BigEndian2Int(substr($chunk_data, $offset, 2)); 1.327 + $offset += 2; 1.328 + 1.329 + $info_real_chunks_current_chunk['artist'] = (string) substr($chunk_data, $offset, $info_real_chunks_current_chunk['artist_len']); 1.330 + $offset += $info_real_chunks_current_chunk['artist_len']; 1.331 + 1.332 + $info_real_chunks_current_chunk['copyright_len'] = getid3_lib::BigEndian2Int(substr($chunk_data, $offset, 2)); 1.333 + $offset += 2; 1.334 + 1.335 + $info_real_chunks_current_chunk['copyright'] = (string) substr($chunk_data, $offset, $info_real_chunks_current_chunk['copyright_len']); 1.336 + $offset += $info_real_chunks_current_chunk['copyright_len']; 1.337 + 1.338 + $info_real_chunks_current_chunk['comment_len'] = getid3_lib::BigEndian2Int(substr($chunk_data, $offset, 2)); 1.339 + $offset += 2; 1.340 + 1.341 + $info_real_chunks_current_chunk['comment'] = (string) substr($chunk_data, $offset, $info_real_chunks_current_chunk['comment_len']); 1.342 + $offset += $info_real_chunks_current_chunk['comment_len']; 1.343 + 1.344 + foreach (array ('title'=>'title', 'artist'=>'artist', 'copyright'=>'copyright', 'comment'=>'comment') as $key => $val) { 1.345 + if ($info_real_chunks_current_chunk[$key]) { 1.346 + $getid3->info['real']['comments'][$val][] = trim($info_real_chunks_current_chunk[$key]); 1.347 + } 1.348 + } 1.349 + } 1.350 + break; 1.351 + 1.352 + 1.353 + case 'DATA': // Data Chunk Header 1.354 + 1.355 + // do nothing 1.356 + break; 1.357 + 1.358 + 1.359 + case 'INDX': // Index Section Header 1.360 + 1.361 + $info_real_chunks_current_chunk['object_version'] = getid3_lib::BigEndian2Int(substr($chunk_data, $offset, 2)); 1.362 + $offset += 2; 1.363 + 1.364 + if ($info_real_chunks_current_chunk['object_version'] == 0) { 1.365 + 1.366 + getid3_lib::ReadSequence('BigEndian2Int', $info_real_chunks_current_chunk, $chunk_data, $offset, 1.367 + array ( 1.368 + 'num_indices' => 4, 1.369 + 'stream_number' => 2, 1.370 + 'next_index_header' => 4 1.371 + ) 1.372 + ); 1.373 + $offset += 10; 1.374 + 1.375 + if ($info_real_chunks_current_chunk['next_index_header'] == 0) { 1.376 + // last index chunk found, ignore rest of file 1.377 + break 2; 1.378 + } else { 1.379 + // non-last index chunk, seek to next index chunk (skipping actual index data) 1.380 + fseek($getid3->fp, $info_real_chunks_current_chunk['next_index_header'], SEEK_SET); 1.381 + } 1.382 + } 1.383 + break; 1.384 + 1.385 + 1.386 + default: 1.387 + $getid3->warning('Unhandled RealMedia chunk "'.$chunk_name.'" at offset '.$info_real_chunks_current_chunk['offset']); 1.388 + break; 1.389 + } 1.390 + $chunk_counter++; 1.391 + } 1.392 + 1.393 + if (!empty($getid3->info['audio']['streams'])) { 1.394 + 1.395 + $getid3->info['audio']['bitrate'] = 0; 1.396 + 1.397 + foreach ($getid3->info['audio']['streams'] as $key => $value_array) { 1.398 + $getid3->info['audio']['bitrate'] += $value_array['bitrate']; 1.399 + } 1.400 + } 1.401 + 1.402 + return true; 1.403 + } 1.404 + 1.405 + 1.406 + 1.407 + public static function ParseOldRAheader($old_ra_header_data, &$parsed_array) { 1.408 + 1.409 + // http://www.freelists.org/archives/matroska-devel/07-2003/msg00010.html 1.410 + 1.411 + $parsed_array = array (); 1.412 + $parsed_array['magic'] = substr($old_ra_header_data, 0, 4); 1.413 + 1.414 + if ($parsed_array['magic'] != '.ra'."\xFD") { 1.415 + return false; 1.416 + } 1.417 + 1.418 + $parsed_array['version1'] = getid3_lib::BigEndian2Int(substr($old_ra_header_data, 4, 2)); 1.419 + 1.420 + if ($parsed_array['version1'] < 3) { 1.421 + 1.422 + return false; 1.423 + } 1.424 + 1.425 + if ($parsed_array['version1'] == 3) { 1.426 + 1.427 + $parsed_array['fourcc1'] = '.ra3'; 1.428 + $parsed_array['bits_per_sample'] = 16; // hard-coded for old versions? 1.429 + $parsed_array['sample_rate'] = 8000; // hard-coded for old versions? 1.430 + 1.431 + getid3_lib::ReadSequence('BigEndian2Int', $parsed_array, $old_ra_header_data, 6, 1.432 + array ( 1.433 + 'header_size' => 2, 1.434 + 'channels' => 2, // always 1 (?) 1.435 + 'IGNORE-unknown1' => 2, 1.436 + 'IGNORE-unknown2' => 2, 1.437 + 'IGNORE-unknown3' => 2, 1.438 + 'bytes_per_minute' => 2, 1.439 + 'audio_bytes' => 4, 1.440 + ) 1.441 + ); 1.442 + 1.443 + $parsed_array['comments_raw'] = substr($old_ra_header_data, 22, $parsed_array['header_size'] - 22 + 1); // not including null terminator 1.444 + 1.445 + $comment_offset = 0; 1.446 + 1.447 + foreach (array ('title', 'artist', 'copyright') as $name) { 1.448 + $comment_length = getid3_lib::BigEndian2Int($parsed_array['comments_raw']{$comment_offset++}); 1.449 + $parsed_array['comments'][$name][]= substr($parsed_array['comments_raw'], $comment_offset, $comment_length); 1.450 + $comment_offset += $comment_length; 1.451 + } 1.452 + 1.453 + $comment_offset++; // final null terminator (?) 1.454 + $comment_offset++; // fourcc length (?) should be 4 1.455 + 1.456 + $parsed_array['fourcc'] = substr($old_ra_header_data, 23 + $comment_offset, 4); 1.457 + 1.458 + 1.459 + } elseif ($parsed_array['version1'] <= 5) { 1.460 + 1.461 + getid3_lib::ReadSequence('BigEndian2Int', $parsed_array, $old_ra_header_data, 6, 1.462 + array ( 1.463 + 'IGNORE-unknown1' => 2, 1.464 + 'fourcc1' => -4, 1.465 + 'file_size' => 4, 1.466 + 'version2' => 2, 1.467 + 'header_size' => 4, 1.468 + 'codec_flavor_id' => 2, 1.469 + 'coded_frame_size' => 4, 1.470 + 'audio_bytes' => 4, 1.471 + 'bytes_per_minute' => 4, 1.472 + 'IGNORE-unknown5' => 4, 1.473 + 'sub_packet_h' => 2, 1.474 + 'frame_size' => 2, 1.475 + 'sub_packet_size' => 2, 1.476 + 'IGNORE-unknown6' => 2 1.477 + ) 1.478 + ); 1.479 + 1.480 + switch ($parsed_array['version1']) { 1.481 + 1.482 + case 4: 1.483 + 1.484 + getid3_lib::ReadSequence('BigEndian2Int', $parsed_array, $old_ra_header_data, 48, 1.485 + array ( 1.486 + 'sample_rate' => 2, 1.487 + 'IGNORE-unknown8' => 2, 1.488 + 'bits_per_sample' => 2, 1.489 + 'channels' => 2, 1.490 + 'length_fourcc2' => 1, 1.491 + 'fourcc2' => -4, 1.492 + 'length_fourcc3' => 1, 1.493 + 'fourcc3' => -4, 1.494 + 'IGNORE-unknown9' => 1, 1.495 + 'IGNORE-unknown10' => 2, 1.496 + ) 1.497 + ); 1.498 + 1.499 + $parsed_array['comments_raw'] = substr($old_ra_header_data, 69, $parsed_array['header_size'] - 69 + 16); 1.500 + 1.501 + $comment_offset = 0; 1.502 + 1.503 + foreach (array ('title', 'artist', 'copyright') as $name) { 1.504 + $comment_length = getid3_lib::BigEndian2Int($parsed_array['comments_raw']{$comment_offset++}); 1.505 + $parsed_array['comments'][$name][]= substr($parsed_array['comments_raw'], $comment_offset, $comment_length); 1.506 + $comment_offset += $comment_length; 1.507 + } 1.508 + break; 1.509 + 1.510 + 1.511 + case 5: 1.512 + 1.513 + getid3_lib::ReadSequence('BigEndian2Int', $parsed_array, $old_ra_header_data, 48, 1.514 + array ( 1.515 + 'sample_rate' => 4, 1.516 + 'sample_rate2' => 4, 1.517 + 'bits_per_sample' => 4, 1.518 + 'channels' => 2, 1.519 + 'genr' => -4, 1.520 + 'fourcc3' => -4, 1.521 + ) 1.522 + ); 1.523 + $parsed_array['comments'] = array (); 1.524 + break; 1.525 + 1.526 + } 1.527 + 1.528 + $parsed_array['fourcc'] = $parsed_array['fourcc3']; 1.529 + 1.530 + } 1.531 + 1.532 + foreach ($parsed_array['comments'] as $key => $value) { 1.533 + 1.534 + if ($parsed_array['comments'][$key][0] === false) { 1.535 + $parsed_array['comments'][$key][0] = ''; 1.536 + } 1.537 + } 1.538 + 1.539 + return true; 1.540 + } 1.541 + 1.542 + 1.543 + 1.544 + public static function RealAudioCodecFourCClookup($fourcc, $bitrate) { 1.545 + 1.546 + // http://www.its.msstate.edu/net/real/reports/config/tags.stats 1.547 + // http://www.freelists.org/archives/matroska-devel/06-2003/fullthread18.html 1.548 + 1.549 + static $lookup; 1.550 + 1.551 + if (empty($lookup)) { 1.552 + $lookup['14_4'][8000] = 'RealAudio v2 (14.4kbps)'; 1.553 + $lookup['14.4'][8000] = 'RealAudio v2 (14.4kbps)'; 1.554 + $lookup['lpcJ'][8000] = 'RealAudio v2 (14.4kbps)'; 1.555 + $lookup['28_8'][15200] = 'RealAudio v2 (28.8kbps)'; 1.556 + $lookup['28.8'][15200] = 'RealAudio v2 (28.8kbps)'; 1.557 + $lookup['sipr'][4933] = 'RealAudio v4 (5kbps Voice)'; 1.558 + $lookup['sipr'][6444] = 'RealAudio v4 (6.5kbps Voice)'; 1.559 + $lookup['sipr'][8444] = 'RealAudio v4 (8.5kbps Voice)'; 1.560 + $lookup['sipr'][16000] = 'RealAudio v4 (16kbps Wideband)'; 1.561 + $lookup['dnet'][8000] = 'RealAudio v3 (8kbps Music)'; 1.562 + $lookup['dnet'][16000] = 'RealAudio v3 (16kbps Music Low Response)'; 1.563 + $lookup['dnet'][15963] = 'RealAudio v3 (16kbps Music Mid/High Response)'; 1.564 + $lookup['dnet'][20000] = 'RealAudio v3 (20kbps Music Stereo)'; 1.565 + $lookup['dnet'][32000] = 'RealAudio v3 (32kbps Music Mono)'; 1.566 + $lookup['dnet'][31951] = 'RealAudio v3 (32kbps Music Stereo)'; 1.567 + $lookup['dnet'][39965] = 'RealAudio v3 (40kbps Music Mono)'; 1.568 + $lookup['dnet'][40000] = 'RealAudio v3 (40kbps Music Stereo)'; 1.569 + $lookup['dnet'][79947] = 'RealAudio v3 (80kbps Music Mono)'; 1.570 + $lookup['dnet'][80000] = 'RealAudio v3 (80kbps Music Stereo)'; 1.571 + 1.572 + $lookup['dnet'][0] = 'RealAudio v3'; 1.573 + $lookup['sipr'][0] = 'RealAudio v4'; 1.574 + $lookup['cook'][0] = 'RealAudio G2'; 1.575 + $lookup['atrc'][0] = 'RealAudio 8'; 1.576 + } 1.577 + 1.578 + $round_bitrate = intval(round($bitrate)); 1.579 + 1.580 + if (isset($lookup[$fourcc][$round_bitrate])) { 1.581 + return $lookup[$fourcc][$round_bitrate]; 1.582 + } 1.583 + 1.584 + if (isset($lookup[$fourcc][0])) { 1.585 + return $lookup[$fourcc][0]; 1.586 + } 1.587 + 1.588 + return $fourcc; 1.589 + } 1.590 + 1.591 +} 1.592 + 1.593 + 1.594 +?> 1.595 \ No newline at end of file