Mercurial > judyates
diff e2gallerypro/e2upload/Backend/Assets/getid3/module.audio.dts.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.dts.php Mon Feb 22 08:02:39 2010 -0500 1.3 @@ -0,0 +1,254 @@ 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.dts.php | 1.21 +// | Module for analyzing DTS audio files | 1.22 +// | dependencies: NONE | 1.23 +// +----------------------------------------------------------------------+ 1.24 +// 1.25 +// $Id: module.audio.dts.php,v 1.2 2006/11/16 13:14:26 ah Exp $ 1.26 + 1.27 + 1.28 + 1.29 +// Specs taken from "DTS Coherent Acoustics;Core and Extensions, ETSI TS 102 114 V1.2.1 (2002-12)" 1.30 +// (http://pda.etsi.org/pda/queryform.asp) 1.31 +// With thanks to Gambit <macteam@users.sourceforge.net> http://mac.sourceforge.net/atl/ 1.32 + 1.33 +class getid3_dts extends getid3_handler 1.34 +{ 1.35 + 1.36 + public function Analyze() { 1.37 + 1.38 + $getid3 = $this->getid3; 1.39 + 1.40 + $getid3->info['dts'] = array (); 1.41 + $info_dts = &$getid3->info['dts']; 1.42 + 1.43 + $getid3->info['fileformat'] = 'dts'; 1.44 + 1.45 + fseek($getid3->fp, $getid3->info['avdataoffset'], SEEK_SET); 1.46 + $header = fread($getid3->fp, 16); 1.47 + 1.48 + $fhBS = getid3_lib::BigEndian2Bin(substr($header, 4, 12)); 1.49 + $bs_offset = 0; 1.50 + $info_dts['raw']['frame_type'] = bindec(substr($fhBS, $bs_offset, 1)); $bs_offset += 1; 1.51 + $info_dts['raw']['deficit_samples'] = bindec(substr($fhBS, $bs_offset, 5)); $bs_offset += 5; 1.52 + $info_dts['flags']['crc_present'] = (bool) bindec(substr($fhBS, $bs_offset, 1)); $bs_offset += 1; 1.53 + $info_dts['raw']['pcm_sample_blocks'] = bindec(substr($fhBS, $bs_offset, 7)); $bs_offset += 7; 1.54 + $info_dts['raw']['frame_byte_size'] = bindec(substr($fhBS, $bs_offset, 14)); $bs_offset += 14; 1.55 + $info_dts['raw']['channel_arrangement'] = bindec(substr($fhBS, $bs_offset, 6)); $bs_offset += 6; 1.56 + $info_dts['raw']['sample_frequency'] = bindec(substr($fhBS, $bs_offset, 4)); $bs_offset += 4; 1.57 + $info_dts['raw']['bitrate'] = bindec(substr($fhBS, $bs_offset, 5)); $bs_offset += 5; 1.58 + $info_dts['flags']['embedded_downmix'] = (bool) bindec(substr($fhBS, $bs_offset, 1)); $bs_offset += 1; 1.59 + $info_dts['flags']['dynamicrange'] = (bool) bindec(substr($fhBS, $bs_offset, 1)); $bs_offset += 1; 1.60 + $info_dts['flags']['timestamp'] = (bool) bindec(substr($fhBS, $bs_offset, 1)); $bs_offset += 1; 1.61 + $info_dts['flags']['auxdata'] = (bool) bindec(substr($fhBS, $bs_offset, 1)); $bs_offset += 1; 1.62 + $info_dts['flags']['hdcd'] = (bool) bindec(substr($fhBS, $bs_offset, 1)); $bs_offset += 1; 1.63 + $info_dts['raw']['extension_audio'] = bindec(substr($fhBS, $bs_offset, 3)); $bs_offset += 3; 1.64 + $info_dts['flags']['extended_coding'] = (bool) bindec(substr($fhBS, $bs_offset, 1)); $bs_offset += 1; 1.65 + $info_dts['flags']['audio_sync_insertion'] = (bool) bindec(substr($fhBS, $bs_offset, 1)); $bs_offset += 1; 1.66 + $info_dts['raw']['lfe_effects'] = bindec(substr($fhBS, $bs_offset, 2)); $bs_offset += 2; 1.67 + $info_dts['flags']['predictor_history'] = (bool) bindec(substr($fhBS, $bs_offset, 1)); $bs_offset += 1; 1.68 + if ($info_dts['flags']['crc_present']) { 1.69 + $info_dts['raw']['crc16'] = bindec(substr($fhBS, $bs_offset, 16)); $bs_offset += 16; 1.70 + } 1.71 + $info_dts['flags']['mri_perfect_reconst'] = (bool) bindec(substr($fhBS, $bs_offset, 1)); $bs_offset += 1; 1.72 + $info_dts['raw']['encoder_soft_version'] = bindec(substr($fhBS, $bs_offset, 4)); $bs_offset += 4; 1.73 + $info_dts['raw']['copy_history'] = bindec(substr($fhBS, $bs_offset, 2)); $bs_offset += 2; 1.74 + $info_dts['raw']['bits_per_sample'] = bindec(substr($fhBS, $bs_offset, 2)); $bs_offset += 2; 1.75 + $info_dts['flags']['surround_es'] = (bool) bindec(substr($fhBS, $bs_offset, 1)); $bs_offset += 1; 1.76 + $info_dts['flags']['front_sum_diff'] = (bool) bindec(substr($fhBS, $bs_offset, 1)); $bs_offset += 1; 1.77 + $info_dts['flags']['surround_sum_diff'] = (bool) bindec(substr($fhBS, $bs_offset, 1)); $bs_offset += 1; 1.78 + $info_dts['raw']['dialog_normalization'] = bindec(substr($fhBS, $bs_offset, 4)); $bs_offset += 4; 1.79 + 1.80 + 1.81 + $info_dts['bitrate'] = $this->DTSbitrateLookup($info_dts['raw']['bitrate']); 1.82 + $info_dts['bits_per_sample'] = $this->DTSbitPerSampleLookup($info_dts['raw']['bits_per_sample']); 1.83 + $info_dts['sample_rate'] = $this->DTSsampleRateLookup($info_dts['raw']['sample_frequency']); 1.84 + $info_dts['dialog_normalization'] = $this->DTSdialogNormalization($info_dts['raw']['dialog_normalization'], $info_dts['raw']['encoder_soft_version']); 1.85 + $info_dts['flags']['lossless'] = (($info_dts['raw']['bitrate'] == 31) ? true : false); 1.86 + $info_dts['bitrate_mode'] = (($info_dts['raw']['bitrate'] == 30) ? 'vbr' : 'cbr'); 1.87 + $info_dts['channels'] = $this->DTSnumChannelsLookup($info_dts['raw']['channel_arrangement']); 1.88 + $info_dts['channel_arrangement'] = $this->DTSchannelArrangementLookup($info_dts['raw']['channel_arrangement']); 1.89 + 1.90 + $getid3->info['audio']['dataformat'] = 'dts'; 1.91 + $getid3->info['audio']['lossless'] = $info_dts['flags']['lossless']; 1.92 + $getid3->info['audio']['bitrate_mode'] = $info_dts['bitrate_mode']; 1.93 + $getid3->info['audio']['bits_per_sample'] = $info_dts['bits_per_sample']; 1.94 + $getid3->info['audio']['sample_rate'] = $info_dts['sample_rate']; 1.95 + $getid3->info['audio']['channels'] = $info_dts['channels']; 1.96 + $getid3->info['audio']['bitrate'] = $info_dts['bitrate']; 1.97 + $getid3->info['playtime_seconds'] = ($getid3->info['avdataend'] - $getid3->info['avdataoffset']) / ($info_dts['bitrate'] / 8); 1.98 + 1.99 + return true; 1.100 + } 1.101 + 1.102 + 1.103 + public static function DTSbitrateLookup($index) { 1.104 + 1.105 + static $lookup = array ( 1.106 + 0 => 32000, 1.107 + 1 => 56000, 1.108 + 2 => 64000, 1.109 + 3 => 96000, 1.110 + 4 => 112000, 1.111 + 5 => 128000, 1.112 + 6 => 192000, 1.113 + 7 => 224000, 1.114 + 8 => 256000, 1.115 + 9 => 320000, 1.116 + 10 => 384000, 1.117 + 11 => 448000, 1.118 + 12 => 512000, 1.119 + 13 => 576000, 1.120 + 14 => 640000, 1.121 + 15 => 768000, 1.122 + 16 => 960000, 1.123 + 17 => 1024000, 1.124 + 18 => 1152000, 1.125 + 19 => 1280000, 1.126 + 20 => 1344000, 1.127 + 21 => 1408000, 1.128 + 22 => 1411200, 1.129 + 23 => 1472000, 1.130 + 24 => 1536000, 1.131 + 25 => 1920000, 1.132 + 26 => 2048000, 1.133 + 27 => 3072000, 1.134 + 28 => 3840000, 1.135 + 29 => 'open', 1.136 + 30 => 'variable', 1.137 + 31 => 'lossless' 1.138 + ); 1.139 + return @$lookup[$index]; 1.140 + } 1.141 + 1.142 + 1.143 + public static function DTSsampleRateLookup($index) { 1.144 + 1.145 + static $lookup = array ( 1.146 + 0 => 'invalid', 1.147 + 1 => 8000, 1.148 + 2 => 16000, 1.149 + 3 => 32000, 1.150 + 4 => 'invalid', 1.151 + 5 => 'invalid', 1.152 + 6 => 11025, 1.153 + 7 => 22050, 1.154 + 8 => 44100, 1.155 + 9 => 'invalid', 1.156 + 10 => 'invalid', 1.157 + 11 => 12000, 1.158 + 12 => 24000, 1.159 + 13 => 48000, 1.160 + 14 => 'invalid', 1.161 + 15 => 'invalid' 1.162 + ); 1.163 + return @$lookup[$index]; 1.164 + } 1.165 + 1.166 + 1.167 + public static function DTSbitPerSampleLookup($index) { 1.168 + 1.169 + static $lookup = array ( 1.170 + 0 => 16, 1.171 + 1 => 20, 1.172 + 2 => 24, 1.173 + 3 => 24, 1.174 + ); 1.175 + return @$lookup[$index]; 1.176 + } 1.177 + 1.178 + 1.179 + public static function DTSnumChannelsLookup($index) { 1.180 + 1.181 + switch ($index) { 1.182 + case 0: 1.183 + return 1; 1.184 + 1.185 + case 1: 1.186 + case 2: 1.187 + case 3: 1.188 + case 4: 1.189 + return 2; 1.190 + 1.191 + case 5: 1.192 + case 6: 1.193 + return 3; 1.194 + 1.195 + case 7: 1.196 + case 8: 1.197 + return 4; 1.198 + 1.199 + case 9: 1.200 + return 5; 1.201 + 1.202 + case 10: 1.203 + case 11: 1.204 + case 12: 1.205 + return 6; 1.206 + 1.207 + case 13: 1.208 + return 7; 1.209 + 1.210 + case 14: 1.211 + case 15: 1.212 + return 8; 1.213 + } 1.214 + return false; 1.215 + } 1.216 + 1.217 + 1.218 + public static function DTSchannelArrangementLookup($index) { 1.219 + 1.220 + static $lookup = array ( 1.221 + 0 => 'A', 1.222 + 1 => 'A + B (dual mono)', 1.223 + 2 => 'L + R (stereo)', 1.224 + 3 => '(L+R) + (L-R) (sum-difference)', 1.225 + 4 => 'LT + RT (left and right total)', 1.226 + 5 => 'C + L + R', 1.227 + 6 => 'L + R + S', 1.228 + 7 => 'C + L + R + S', 1.229 + 8 => 'L + R + SL + SR', 1.230 + 9 => 'C + L + R + SL + SR', 1.231 + 10 => 'CL + CR + L + R + SL + SR', 1.232 + 11 => 'C + L + R+ LR + RR + OV', 1.233 + 12 => 'CF + CR + LF + RF + LR + RR', 1.234 + 13 => 'CL + C + CR + L + R + SL + SR', 1.235 + 14 => 'CL + CR + L + R + SL1 + SL2 + SR1 + SR2', 1.236 + 15 => 'CL + C+ CR + L + R + SL + S + SR', 1.237 + ); 1.238 + return (@$lookup[$index] ? @$lookup[$index] : 'user-defined'); 1.239 + } 1.240 + 1.241 + 1.242 + public static function DTSdialogNormalization($index, $version) { 1.243 + 1.244 + switch ($version) { 1.245 + case 7: 1.246 + return 0 - $index; 1.247 + 1.248 + case 6: 1.249 + return 0 - 16 - $index; 1.250 + } 1.251 + return false; 1.252 + } 1.253 + 1.254 +} 1.255 + 1.256 + 1.257 +?> 1.258 \ No newline at end of file