101 lines
3 KiB
PHP
101 lines
3 KiB
PHP
<?php
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/////////////////////////////////////////////////////////////////
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/// getID3() by James Heinrich <info@getid3.org> //
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// available at http://getid3.sourceforge.net //
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// or http://www.getid3.org //
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/////////////////////////////////////////////////////////////////
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// See readme.txt for more details //
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/////////////////////////////////////////////////////////////////
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// //
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// module.audio.mod.php //
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// module for analyzing MOD Audio files //
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// dependencies: NONE //
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// ///
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/////////////////////////////////////////////////////////////////
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class getid3_mod
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{
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// new combined constructor
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function getid3_mod(&$fd, &$ThisFileInfo, $option) {
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if ($option === 'mod') {
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$this->getMODheaderFilepointer($fd, $ThisFileInfo);
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}
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elseif ($option === 'xm') {
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$this->getXMheaderFilepointer($fd, $ThisFileInfo);
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}
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elseif ($option === 'it') {
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$this->getITheaderFilepointer($fd, $ThisFileInfo);
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}
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elseif ($option === 's3m') {
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$this->getS3MheaderFilepointer($fd, $ThisFileInfo);
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}
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}
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function getMODheaderFilepointer(&$fd, &$ThisFileInfo) {
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fseek($fd, $ThisFileInfo['avdataoffset'] + 1080);
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$FormatID = fread($fd, 4);
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if (!preg_match('#^(M.K.|[5-9]CHN|[1-3][0-9]CH)$#', $FormatID)) {
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$ThisFileInfo['error'][] = 'This is not a known type of MOD file';
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return false;
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}
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$ThisFileInfo['fileformat'] = 'mod';
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$ThisFileInfo['error'][] = 'MOD parsing not enabled in this version of getID3()';
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return false;
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}
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function getXMheaderFilepointer(&$fd, &$ThisFileInfo) {
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fseek($fd, $ThisFileInfo['avdataoffset']);
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$FormatID = fread($fd, 15);
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if (!preg_match('#^Extended Module$#', $FormatID)) {
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$ThisFileInfo['error'][] = 'This is not a known type of XM-MOD file';
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return false;
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}
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$ThisFileInfo['fileformat'] = 'xm';
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$ThisFileInfo['error'][] = 'XM-MOD parsing not enabled in this version of getID3()';
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return false;
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}
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function getS3MheaderFilepointer(&$fd, &$ThisFileInfo) {
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fseek($fd, $ThisFileInfo['avdataoffset'] + 44);
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$FormatID = fread($fd, 4);
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if (!preg_match('#^SCRM$#', $FormatID)) {
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$ThisFileInfo['error'][] = 'This is not a ScreamTracker MOD file';
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return false;
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}
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$ThisFileInfo['fileformat'] = 's3m';
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$ThisFileInfo['error'][] = 'ScreamTracker parsing not enabled in this version of getID3()';
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return false;
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}
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function getITheaderFilepointer(&$fd, &$ThisFileInfo) {
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fseek($fd, $ThisFileInfo['avdataoffset']);
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$FormatID = fread($fd, 4);
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if (!preg_match('#^IMPM$#', $FormatID)) {
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$ThisFileInfo['error'][] = 'This is not an ImpulseTracker MOD file';
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return false;
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}
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$ThisFileInfo['fileformat'] = 'it';
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$ThisFileInfo['error'][] = 'ImpulseTracker parsing not enabled in this version of getID3()';
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return false;
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}
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}
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?>
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