public static function bitratelookup(&$mp3)
{
//bits V1,L1 V1,L2 V1,L3 V2,L1 V2,L2&L3
$array = array();
$array['0000'] = array('free', 'free', 'free', 'free', 'free');
$array['0001'] = array('32', '32', '32', '32', '8');
$array['0010'] = array('64', '48', '40', '48', '16');
$array['0011'] = array('96', '56', '48', '56', '24');
$array['0100'] = array('128', '64', '56', '64', '32');
$array['0101'] = array('160', '80', '64', '80', '40');
$array['0110'] = array('192', '96', '80', '96', '48');
$array['0111'] = array('224', '112', '96', '112', '56');
$array['1000'] = array('256', '128', '112', '128', '64');
$array['1001'] = array('288', '160', '128', '144', '80');
$array['1010'] = array('320', '192', '160', '160', '96');
$array['1011'] = array('352', '224', '192', '176', '112');
$array['1100'] = array('384', '256', '224', '192', '128');
$array['1101'] = array('416', '320', '256', '224', '144');
$array['1110'] = array('448', '384', '320', '256', '160');
$array['1111'] = array('bad', 'bad', 'bad', 'bad', 'bad');
$whichcolumn = -1;
if (mp3file::is_mpeg10($mp3) && mp3file::is_layer1($mp3)) {
//V1,L1
$whichcolumn = 0;
} else {
if (mp3file::is_mpeg10($mp3) && mp3file::is_layer2($mp3)) {
//V1,L2
$whichcolumn = 1;
} else {
if (mp3file::is_mpeg10($mp3) && mp3file::is_layer3($mp3)) {
//V1,L3
$whichcolumn = 2;
} else {
if (mp3file::is_mpeg20or25($mp3) && mp3file::is_layer1($mp3)) {
//V2,L1
$whichcolumn = 3;
} else {
if (mp3file::is_mpeg20or25($mp3) && (mp3file::is_layer2($mp3) || mp3file::is_layer3($mp3))) {
$whichcolumn = 4;
}
}
}
}
}
//V2, L2||L3
if (isset($array[$mp3['Bitrate Index']][$whichcolumn])) {
return $array[$mp3['Bitrate Index']][$whichcolumn];
} else {
return "bad";
}
}