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