mirror of
https://github.com/Poniverse/Pony.fm.git
synced 2024-11-27 15:27:58 +01:00
75 lines
No EOL
3 KiB
PHP
75 lines
No EOL
3 KiB
PHP
<?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.dss.php //
|
|
// module for analyzing Digital Speech Standard (DSS) files //
|
|
// dependencies: NONE //
|
|
// ///
|
|
/////////////////////////////////////////////////////////////////
|
|
|
|
|
|
class getid3_dss extends getid3_handler
|
|
{
|
|
|
|
function Analyze() {
|
|
$info = &$this->getid3->info;
|
|
|
|
fseek($this->getid3->fp, $info['avdataoffset'], SEEK_SET);
|
|
$DSSheader = fread($this->getid3->fp, 1256);
|
|
|
|
if (!preg_match('#^(\x02|\x03)dss#', $DSSheader)) {
|
|
$info['error'][] = 'Expecting "[02-03] 64 73 73" at offset '.$info['avdataoffset'].', found "'.getid3_lib::PrintHexBytes(substr($DSSheader, 0, 4)).'"';
|
|
return false;
|
|
}
|
|
|
|
// some structure information taken from http://cpansearch.perl.org/src/RGIBSON/Audio-DSS-0.02/lib/Audio/DSS.pm
|
|
|
|
// shortcut
|
|
$info['dss'] = array();
|
|
$thisfile_dss = &$info['dss'];
|
|
|
|
$info['fileformat'] = 'dss';
|
|
$info['audio']['dataformat'] = 'dss';
|
|
$info['audio']['bitrate_mode'] = 'cbr';
|
|
//$thisfile_dss['encoding'] = 'ISO-8859-1';
|
|
|
|
$thisfile_dss['version'] = ord(substr($DSSheader, 0, 1));
|
|
$thisfile_dss['date_create'] = $this->DSSdateStringToUnixDate(substr($DSSheader, 38, 12));
|
|
$thisfile_dss['date_complete'] = $this->DSSdateStringToUnixDate(substr($DSSheader, 50, 12));
|
|
//$thisfile_dss['length'] = intval(substr($DSSheader, 62, 6)); // I thought time was in seconds, it's actually HHMMSS
|
|
$thisfile_dss['length'] = intval((substr($DSSheader, 62, 2) * 3600) + (substr($DSSheader, 64, 2) * 60) + substr($DSSheader, 66, 2));
|
|
$thisfile_dss['priority'] = ord(substr($DSSheader, 793, 1));
|
|
$thisfile_dss['comments'] = trim(substr($DSSheader, 798, 100));
|
|
|
|
|
|
//$info['audio']['bits_per_sample'] = ?;
|
|
//$info['audio']['sample_rate'] = ?;
|
|
$info['audio']['channels'] = 1;
|
|
|
|
$info['playtime_seconds'] = $thisfile_dss['length'];
|
|
$info['audio']['bitrate'] = ($info['filesize'] * 8) / $info['playtime_seconds'];
|
|
|
|
return true;
|
|
}
|
|
|
|
function DSSdateStringToUnixDate($datestring) {
|
|
$y = substr($datestring, 0, 2);
|
|
$m = substr($datestring, 2, 2);
|
|
$d = substr($datestring, 4, 2);
|
|
$h = substr($datestring, 6, 2);
|
|
$i = substr($datestring, 8, 2);
|
|
$s = substr($datestring, 10, 2);
|
|
$y += (($y < 95) ? 2000 : 1900);
|
|
return mktime($h, $i, $s, $m, $d, $y);
|
|
}
|
|
|
|
}
|
|
|
|
|
|
?>
|