Mercurial > judyates
diff e2gallerypro/e2upload/Backend/Assets/getid3/module.audio.optimfrog.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.optimfrog.php Mon Feb 22 08:02:39 2010 -0500 1.3 @@ -0,0 +1,468 @@ 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.optimfrog.php | 1.21 +// | Module for analyzing OptimFROG Audio files | 1.22 +// | dependencies: module.audio-video.riff.php | 1.23 +// +----------------------------------------------------------------------+ 1.24 +// 1.25 +// $Id: module.audio.optimfrog.php,v 1.3 2006/11/02 10:48:01 ah Exp $ 1.26 + 1.27 + 1.28 + 1.29 +class getid3_optimfrog 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['audio']['dataformat'] = 'ofr'; 1.39 + $getid3->info['audio']['bitrate_mode'] = 'vbr'; 1.40 + $getid3->info['audio']['lossless'] = true; 1.41 + 1.42 + fseek($getid3->fp, $getid3->info['avdataoffset'], SEEK_SET); 1.43 + $ofr_header = fread($getid3->fp, 8); 1.44 + 1.45 + if (substr($ofr_header, 0, 5) == '*RIFF') { 1.46 + return $this->ParseOptimFROGheader42($getid3->fp, $getid3->info); 1.47 + 1.48 + } elseif (substr($ofr_header, 0, 3) == 'OFR') { 1.49 + return $this->ParseOptimFROGheader45($getid3->fp, $getid3->info); 1.50 + } 1.51 + 1.52 + throw new getid3_exception('Expecting "*RIFF" or "OFR " at offset '.$getid3->info['avdataoffset'].', found "'.$ofr_header.'"'); 1.53 + } 1.54 + 1.55 + 1.56 + 1.57 + private function ParseOptimFROGheader42() { 1.58 + 1.59 + $getid3 = $this->getid3; 1.60 + 1.61 + // for fileformat of v4.21 and older 1.62 + 1.63 + fseek($getid3->fp, $getid3->info['avdataoffset'], SEEK_SET); 1.64 + 1.65 + $ofr_header_data = fread($getid3->fp, 45); 1.66 + $getid3->info['avdataoffset'] = 45; 1.67 + 1.68 + $ofr_encoder_version_raw = getid3_lib::LittleEndian2Int(substr($ofr_header_data, 0, 1)); 1.69 + $ofr_encoder_version_major = floor($ofr_encoder_version_raw / 10); 1.70 + $ofr_encoder_version_minor = $ofr_encoder_version_raw - ($ofr_encoder_version_major * 10); 1.71 + $riff_data = substr($ofr_header_data, 1, 44); 1.72 + $origna_riff_header_size = getid3_lib::LittleEndian2Int(substr($riff_data, 4, 4)) + 8; 1.73 + $origna_riff_data_size = getid3_lib::LittleEndian2Int(substr($riff_data, 40, 4)) + 44; 1.74 + 1.75 + if ($origna_riff_header_size > $origna_riff_data_size) { 1.76 + $getid3->info['avdataend'] -= ($origna_riff_header_size - $origna_riff_data_size); 1.77 + fseek($getid3->fp, $getid3->info['avdataend'], SEEK_SET); 1.78 + $riff_data .= fread($getid3->fp, $origna_riff_header_size - $origna_riff_data_size); 1.79 + } 1.80 + 1.81 + // move the data chunk after all other chunks (if any) 1.82 + // so that the RIFF parser doesn't see EOF when trying 1.83 + // to skip over the data chunk 1.84 + 1.85 + $riff_data = substr($riff_data, 0, 36).substr($riff_data, 44).substr($riff_data, 36, 8); 1.86 + 1.87 + // Save audio info key 1.88 + $saved_info_audio = $getid3->info['audio']; 1.89 + 1.90 + // Instantiate riff module and analyze string 1.91 + $riff = new getid3_riff($getid3); 1.92 + $riff->AnalyzeString($riff_data); 1.93 + 1.94 + // Restore info key 1.95 + $getid3->info['audio'] = $saved_info_audio; 1.96 + 1.97 + $getid3->info['audio']['encoder'] = 'OptimFROG '.$ofr_encoder_version_major.'.'.$ofr_encoder_version_minor; 1.98 + $getid3->info['audio']['channels'] = $getid3->info['riff']['audio'][0]['channels']; 1.99 + $getid3->info['audio']['sample_rate'] = $getid3->info['riff']['audio'][0]['sample_rate']; 1.100 + $getid3->info['audio']['bits_per_sample'] = $getid3->info['riff']['audio'][0]['bits_per_sample']; 1.101 + $getid3->info['playtime_seconds'] = $origna_riff_data_size / ($getid3->info['audio']['channels'] * $getid3->info['audio']['sample_rate'] * ($getid3->info['audio']['bits_per_sample'] / 8)); 1.102 + $getid3->info['audio']['bitrate'] = (($getid3->info['avdataend'] - $getid3->info['avdataoffset']) * 8) / $getid3->info['playtime_seconds']; 1.103 + 1.104 + $getid3->info['fileformat'] = 'ofr'; 1.105 + 1.106 + return true; 1.107 + } 1.108 + 1.109 + 1.110 + 1.111 + private function ParseOptimFROGheader45() { 1.112 + 1.113 + $getid3 = $this->getid3; 1.114 + 1.115 + // for fileformat of v4.50a and higher 1.116 + 1.117 + $riff_data = ''; 1.118 + fseek($getid3->fp, $getid3->info['avdataoffset'], SEEK_SET); 1.119 + 1.120 + while (!feof($getid3->fp) && (ftell($getid3->fp) < $getid3->info['avdataend'])) { 1.121 + 1.122 + $block_offset = ftell($getid3->fp); 1.123 + $block_data = fread($getid3->fp, 8); 1.124 + $offset = 8; 1.125 + $block_name = substr($block_data, 0, 4); 1.126 + $block_size = getid3_lib::LittleEndian2Int(substr($block_data, 4, 4)); 1.127 + 1.128 + if ($block_name == 'OFRX') { 1.129 + $block_name = 'OFR '; 1.130 + } 1.131 + if (!isset($getid3->info['ofr'][$block_name])) { 1.132 + $getid3->info['ofr'][$block_name] = array (); 1.133 + } 1.134 + $info_ofr_this_block = &$getid3->info['ofr'][$block_name]; 1.135 + 1.136 + switch ($block_name) { 1.137 + case 'OFR ': 1.138 + 1.139 + // shortcut 1.140 + $info_ofr_this_block['offset'] = $block_offset; 1.141 + $info_ofr_this_block['size'] = $block_size; 1.142 + 1.143 + $getid3->info['audio']['encoder'] = 'OptimFROG 4.50 alpha'; 1.144 + switch ($block_size) { 1.145 + case 12: 1.146 + case 15: 1.147 + // good 1.148 + break; 1.149 + 1.150 + default: 1.151 + $getid3->warning('"'.$block_name.'" contains more data than expected (expected 12 or 15 bytes, found '.$block_size.' bytes)'); 1.152 + break; 1.153 + } 1.154 + $block_data .= fread($getid3->fp, $block_size); 1.155 + 1.156 + $info_ofr_this_block['total_samples'] = getid3_lib::LittleEndian2Int(substr($block_data, $offset, 6)); 1.157 + $offset += 6; 1.158 + 1.159 + $info_ofr_this_block['raw']['sample_type'] = getid3_lib::LittleEndian2Int($block_data{$offset++}); 1.160 + $info_ofr_this_block['sample_type'] = $this->OptimFROGsampleTypeLookup($info_ofr_this_block['raw']['sample_type']); 1.161 + 1.162 + $info_ofr_this_block['channel_config'] = getid3_lib::LittleEndian2Int($block_data{$offset++}); 1.163 + $info_ofr_this_block['channels'] = $info_ofr_this_block['channel_config']; 1.164 + 1.165 + $info_ofr_this_block['sample_rate'] = getid3_lib::LittleEndian2Int(substr($block_data, $offset, 4)); 1.166 + $offset += 4; 1.167 + 1.168 + if ($block_size > 12) { 1.169 + 1.170 + // OFR 4.504b or higher 1.171 + $info_ofr_this_block['channels'] = $this->OptimFROGchannelConfigNumChannelsLookup($info_ofr_this_block['channel_config']); 1.172 + $info_ofr_this_block['raw']['encoder_id'] = getid3_lib::LittleEndian2Int(substr($block_data, $offset, 2)); 1.173 + $info_ofr_this_block['encoder'] = $this->OptimFROGencoderNameLookup($info_ofr_this_block['raw']['encoder_id']); 1.174 + $offset += 2; 1.175 + 1.176 + $info_ofr_this_block['raw']['compression'] = getid3_lib::LittleEndian2Int($block_data{$offset++}); 1.177 + $info_ofr_this_block['compression'] = $this->OptimFROGcompressionLookup($info_ofr_this_block['raw']['compression']); 1.178 + $info_ofr_this_block['speedup'] = $this->OptimFROGspeedupLookup($info_ofr_this_block['raw']['compression']); 1.179 + 1.180 + $getid3->info['audio']['encoder'] = 'OptimFROG '.$info_ofr_this_block['encoder']; 1.181 + $getid3->info['audio']['encoder_options'] = '--mode '.$info_ofr_this_block['compression']; 1.182 + 1.183 + if ((($info_ofr_this_block['raw']['encoder_id'] & 0xF0) >> 4) == 7) { // v4.507 1.184 + if (preg_match('/\.ofs$/i', $getid3->filename)) { 1.185 + // OptimFROG DualStream format is lossy, but as of v4.507 there is no way to tell the difference 1.186 + // between lossless and lossy other than the file extension. 1.187 + $getid3->info['audio']['dataformat'] = 'ofs'; 1.188 + $getid3->info['audio']['lossless'] = true; 1.189 + } 1.190 + } 1.191 + } 1.192 + 1.193 + $getid3->info['audio']['channels'] = $info_ofr_this_block['channels']; 1.194 + $getid3->info['audio']['sample_rate'] = $info_ofr_this_block['sample_rate']; 1.195 + $getid3->info['audio']['bits_per_sample'] = $this->OptimFROGbitsPerSampleTypeLookup($info_ofr_this_block['raw']['sample_type']); 1.196 + break; 1.197 + 1.198 + 1.199 + case 'COMP': 1.200 + // unlike other block types, there CAN be multiple COMP blocks 1.201 + 1.202 + $comp_data['offset'] = $block_offset; 1.203 + $comp_data['size'] = $block_size; 1.204 + 1.205 + if ($getid3->info['avdataoffset'] == 0) { 1.206 + $getid3->info['avdataoffset'] = $block_offset; 1.207 + } 1.208 + 1.209 + // Only interested in first 14 bytes (only first 12 needed for v4.50 alpha), not actual audio data 1.210 + $block_data .= fread($getid3->fp, 14); 1.211 + fseek($getid3->fp, $block_size - 14, SEEK_CUR); 1.212 + 1.213 + $comp_data['crc_32'] = getid3_lib::LittleEndian2Int(substr($block_data, $offset, 4)); 1.214 + $offset += 4; 1.215 + 1.216 + $comp_data['sample_count'] = getid3_lib::LittleEndian2Int(substr($block_data, $offset, 4)); 1.217 + $offset += 4; 1.218 + 1.219 + $comp_data['raw']['sample_type'] = getid3_lib::LittleEndian2Int($block_data{$offset++}); 1.220 + $comp_data['sample_type'] = $this->OptimFROGsampleTypeLookup($comp_data['raw']['sample_type']); 1.221 + 1.222 + $comp_data['raw']['channel_configuration'] = getid3_lib::LittleEndian2Int($block_data{$offset++}); 1.223 + $comp_data['channel_configuration'] = $this->OptimFROGchannelConfigurationLookup($comp_data['raw']['channel_configuration']); 1.224 + 1.225 + $comp_data['raw']['algorithm_id'] = getid3_lib::LittleEndian2Int(substr($block_data, $offset, 2)); 1.226 + $offset += 2; 1.227 + 1.228 + if ($getid3->info['ofr']['OFR ']['size'] > 12) { 1.229 + 1.230 + // OFR 4.504b or higher 1.231 + $comp_data['raw']['encoder_id'] = getid3_lib::LittleEndian2Int(substr($block_data, $offset, 2)); 1.232 + $comp_data['encoder'] = $this->OptimFROGencoderNameLookup($comp_data['raw']['encoder_id']); 1.233 + $offset += 2; 1.234 + } 1.235 + 1.236 + if ($comp_data['crc_32'] == 0x454E4F4E) { 1.237 + // ASCII value of 'NONE' - placeholder value in v4.50a 1.238 + $comp_data['crc_32'] = false; 1.239 + } 1.240 + 1.241 + $info_ofr_this_block[] = $comp_data; 1.242 + break; 1.243 + 1.244 + case 'HEAD': 1.245 + $info_ofr_this_block['offset'] = $block_offset; 1.246 + $info_ofr_this_block['size'] = $block_size; 1.247 + 1.248 + $riff_data .= fread($getid3->fp, $block_size); 1.249 + break; 1.250 + 1.251 + case 'TAIL': 1.252 + $info_ofr_this_block['offset'] = $block_offset; 1.253 + $info_ofr_this_block['size'] = $block_size; 1.254 + 1.255 + if ($block_size > 0) { 1.256 + $riff_data .= fread($getid3->fp, $block_size); 1.257 + } 1.258 + break; 1.259 + 1.260 + case 'RECV': 1.261 + // block contains no useful meta data - simply note and skip 1.262 + 1.263 + $info_ofr_this_block['offset'] = $block_offset; 1.264 + $info_ofr_this_block['size'] = $block_size; 1.265 + 1.266 + fseek($getid3->fp, $block_size, SEEK_CUR); 1.267 + break; 1.268 + 1.269 + 1.270 + case 'APET': 1.271 + // APEtag v2 1.272 + 1.273 + $info_ofr_this_block['offset'] = $block_offset; 1.274 + $info_ofr_this_block['size'] = $block_size; 1.275 + $getid3->warning('APEtag processing inside OptimFROG not supported in this version ('.GETID3_VERSION.') of getID3()'); 1.276 + 1.277 + fseek($getid3->fp, $block_size, SEEK_CUR); 1.278 + break; 1.279 + 1.280 + 1.281 + case 'MD5 ': 1.282 + // APEtag v2 1.283 + 1.284 + $info_ofr_this_block['offset'] = $block_offset; 1.285 + $info_ofr_this_block['size'] = $block_size; 1.286 + 1.287 + if ($block_size == 16) { 1.288 + 1.289 + $info_ofr_this_block['md5_binary'] = fread($getid3->fp, $block_size); 1.290 + $info_ofr_this_block['md5_string'] = getid3_lib::PrintHexBytes($info_ofr_this_block['md5_binary'], true, false, false); 1.291 + $getid3->info['md5_data_source'] = $info_ofr_this_block['md5_string']; 1.292 + 1.293 + } else { 1.294 + 1.295 + $getid3->warning('Expecting block size of 16 in "MD5 " chunk, found '.$block_size.' instead'); 1.296 + fseek($getid3->fp, $block_size, SEEK_CUR); 1.297 + 1.298 + } 1.299 + break; 1.300 + 1.301 + 1.302 + default: 1.303 + $info_ofr_this_block['offset'] = $block_offset; 1.304 + $info_ofr_this_block['size'] = $block_size; 1.305 + 1.306 + $getid3->warning('Unhandled OptimFROG block type "'.$block_name.'" at offset '.$info_ofr_this_block['offset']); 1.307 + fseek($getid3->fp, $block_size, SEEK_CUR); 1.308 + break; 1.309 + } 1.310 + } 1.311 + 1.312 + if (isset($getid3->info['ofr']['TAIL']['offset'])) { 1.313 + $getid3->info['avdataend'] = $getid3->info['ofr']['TAIL']['offset']; 1.314 + } 1.315 + 1.316 + $getid3->info['playtime_seconds'] = (float)$getid3->info['ofr']['OFR ']['total_samples'] / ($getid3->info['audio']['channels'] * $getid3->info['audio']['sample_rate']); 1.317 + $getid3->info['audio']['bitrate'] = (($getid3->info['avdataend'] - $getid3->info['avdataoffset']) * 8) / $getid3->info['playtime_seconds']; 1.318 + 1.319 + // move the data chunk after all other chunks (if any) 1.320 + // so that the RIFF parser doesn't see EOF when trying 1.321 + // to skip over the data chunk 1.322 + 1.323 + $riff_data = substr($riff_data, 0, 36).substr($riff_data, 44).substr($riff_data, 36, 8); 1.324 + 1.325 + // Save audio info key 1.326 + $saved_info_audio = $getid3->info['audio']; 1.327 + 1.328 + // Instantiate riff module and analyze string 1.329 + $riff = new getid3_riff($getid3); 1.330 + $riff->AnalyzeString($riff_data); 1.331 + 1.332 + // Restore info key 1.333 + $getid3->info['audio'] = $saved_info_audio; 1.334 + 1.335 + $getid3->info['fileformat'] = 'ofr'; 1.336 + 1.337 + return true; 1.338 + } 1.339 + 1.340 + 1.341 + 1.342 + public static function OptimFROGsampleTypeLookup($sample_type) { 1.343 + 1.344 + static $lookup = array ( 1.345 + 0 => 'unsigned int (8-bit)', 1.346 + 1 => 'signed int (8-bit)', 1.347 + 2 => 'unsigned int (16-bit)', 1.348 + 3 => 'signed int (16-bit)', 1.349 + 4 => 'unsigned int (24-bit)', 1.350 + 5 => 'signed int (24-bit)', 1.351 + 6 => 'unsigned int (32-bit)', 1.352 + 7 => 'signed int (32-bit)', 1.353 + 8 => 'float 0.24 (32-bit)', 1.354 + 9 => 'float 16.8 (32-bit)', 1.355 + 10 => 'float 24.0 (32-bit)' 1.356 + ); 1.357 + 1.358 + return @$lookup[$sample_type]; 1.359 + } 1.360 + 1.361 + 1.362 + 1.363 + public static function OptimFROGbitsPerSampleTypeLookup($sample_type) { 1.364 + 1.365 + static $lookup = array ( 1.366 + 0 => 8, 1.367 + 1 => 8, 1.368 + 2 => 16, 1.369 + 3 => 16, 1.370 + 4 => 24, 1.371 + 5 => 24, 1.372 + 6 => 32, 1.373 + 7 => 32, 1.374 + 8 => 32, 1.375 + 9 => 32, 1.376 + 10 => 32 1.377 + ); 1.378 + 1.379 + return @$lookup[$sample_type]; 1.380 + } 1.381 + 1.382 + 1.383 + 1.384 + public static function OptimFROGchannelConfigurationLookup($channel_configuration) { 1.385 + 1.386 + static $lookup = array ( 1.387 + 0 => 'mono', 1.388 + 1 => 'stereo' 1.389 + ); 1.390 + 1.391 + return @$lookup[$channel_configuration]; 1.392 + } 1.393 + 1.394 + 1.395 + 1.396 + public static function OptimFROGchannelConfigNumChannelsLookup($channel_configuration) { 1.397 + 1.398 + static $lookup = array ( 1.399 + 0 => 1, 1.400 + 1 => 2 1.401 + ); 1.402 + 1.403 + return @$lookup[$channel_configuration]; 1.404 + } 1.405 + 1.406 + 1.407 + 1.408 + public static function OptimFROGencoderNameLookup($encoder_id) { 1.409 + 1.410 + // version = (encoderID >> 4) + 4500 1.411 + // system = encoderID & 0xF 1.412 + 1.413 + $encoder_version = number_format(((($encoder_id & 0xF0) >> 4) + 4500) / 1000, 3); 1.414 + $encoder_system_id = ($encoder_id & 0x0F); 1.415 + 1.416 + static $lookup = array ( 1.417 + 0x00 => 'Windows console', 1.418 + 0x01 => 'Linux console', 1.419 + 0x0F => 'unknown' 1.420 + ); 1.421 + return $encoder_version.' ('.(isset($lookup[$encoder_system_id]) ? $lookup[$encoder_system_id] : 'undefined encoder type (0x'.dechex($encoder_system_id).')').')'; 1.422 + } 1.423 + 1.424 + 1.425 + 1.426 + public static function OptimFROGcompressionLookup($compression_id) { 1.427 + 1.428 + // mode = compression >> 3 1.429 + // speedup = compression & 0x07 1.430 + 1.431 + $compression_mode_id = ($compression_id & 0xF8) >> 3; 1.432 + //$compression_speed_up_id = ($compression_id & 0x07); 1.433 + 1.434 + static $lookup = array ( 1.435 + 0x00 => 'fast', 1.436 + 0x01 => 'normal', 1.437 + 0x02 => 'high', 1.438 + 0x03 => 'extra', // extranew (some versions) 1.439 + 0x04 => 'best', // bestnew (some versions) 1.440 + 0x05 => 'ultra', 1.441 + 0x06 => 'insane', 1.442 + 0x07 => 'highnew', 1.443 + 0x08 => 'extranew', 1.444 + 0x09 => 'bestnew' 1.445 + ); 1.446 + return (isset($lookup[$compression_mode_id]) ? $lookup[$compression_mode_id] : 'undefined mode (0x'.str_pad(dechex($compression_mode_id), 2, '0', STR_PAD_LEFT).')'); 1.447 + } 1.448 + 1.449 + 1.450 + 1.451 + public static function OptimFROGspeedupLookup($compression_id) { 1.452 + 1.453 + // mode = compression >> 3 1.454 + // speedup = compression & 0x07 1.455 + 1.456 + //$compression_mode_id = ($compression_id & 0xF8) >> 3; 1.457 + $compression_speed_up_id = ($compression_id & 0x07); 1.458 + 1.459 + static $lookup = array ( 1.460 + 0x00 => '1x', 1.461 + 0x01 => '2x', 1.462 + 0x02 => '4x' 1.463 + ); 1.464 + 1.465 + return (isset($lookup[$compression_speed_up_id]) ? $lookup[$compression_speed_up_id] : 'undefined mode (0x'.dechex($compression_speed_up_id)); 1.466 + } 1.467 + 1.468 +} 1.469 + 1.470 + 1.471 +?> 1.472 \ No newline at end of file