Файл: sys/inc/libs/getid3/module.audio.mod.php
Строк: 105
<?php
/////////////////////////////////////////////////////////////////
/// getID3() by James Heinrich <info@getid3.org> //
// available at https://github.com/JamesHeinrich/getID3 //
// or https://www.getid3.org //
// or http://getid3.sourceforge.net //
// see readme.txt for more details //
/////////////////////////////////////////////////////////////////
// //
// module.audio.mod.php //
// module for analyzing MOD Audio files //
// dependencies: NONE //
// ///
/////////////////////////////////////////////////////////////////
class getid3_mod extends getid3_handler
{
/**
* @return bool
*/
public function Analyze() {
$info = &$this->getid3->info;
$this->fseek($info['avdataoffset']);
$fileheader = $this->fread(1088);
if (preg_match('#^IMPM#', $fileheader)) {
return $this->getITheaderFilepointer();
} elseif (preg_match('#^Extended Module#', $fileheader)) {
return $this->getXMheaderFilepointer();
} elseif (preg_match('#^.{44}SCRM#', $fileheader)) {
return $this->getS3MheaderFilepointer();
} elseif (preg_match('#^.{1080}(M\.K\.|M!K!|FLT4|FLT8|[5-9]CHN|[1-3][0-9]CH)#', $fileheader)) {
return $this->getMODheaderFilepointer();
}
$this->error('This is not a known type of MOD file');
return false;
}
/**
* @return bool
*/
public function getMODheaderFilepointer() {
$info = &$this->getid3->info;
$this->fseek($info['avdataoffset'] + 1080);
$FormatID = $this->fread(4);
if (!preg_match('#^(M.K.|[5-9]CHN|[1-3][0-9]CH)$#', $FormatID)) {
$this->error('This is not a known type of MOD file');
return false;
}
$info['fileformat'] = 'mod';
$this->error('MOD parsing not enabled in this version of getID3() ['.$this->getid3->version().']');
return false;
}
/**
* @return bool
*/
public function getXMheaderFilepointer() {
$info = &$this->getid3->info;
$this->fseek($info['avdataoffset']);
$FormatID = $this->fread(15);
if (!preg_match('#^Extended Module$#', $FormatID)) {
$this->error('This is not a known type of XM-MOD file');
return false;
}
$info['fileformat'] = 'xm';
$this->error('XM-MOD parsing not enabled in this version of getID3() ['.$this->getid3->version().']');
return false;
}
/**
* @return bool
*/
public function getS3MheaderFilepointer() {
$info = &$this->getid3->info;
$this->fseek($info['avdataoffset'] + 44);
$FormatID = $this->fread(4);
if (!preg_match('#^SCRM$#', $FormatID)) {
$this->error('This is not a ScreamTracker MOD file');
return false;
}
$info['fileformat'] = 's3m';
$this->error('ScreamTracker parsing not enabled in this version of getID3() ['.$this->getid3->version().']');
return false;
}
/**
* @return bool
*/
public function getITheaderFilepointer() {
$info = &$this->getid3->info;
$this->fseek($info['avdataoffset']);
$FormatID = $this->fread(4);
if (!preg_match('#^IMPM$#', $FormatID)) {
$this->error('This is not an ImpulseTracker MOD file');
return false;
}
$info['fileformat'] = 'it';
$this->error('ImpulseTracker parsing not enabled in this version of getID3() ['.$this->getid3->version().']');
return false;
}
}