private static function _ttsApiCaptionify($sentence, $lastEnd, $durationError)
{
$speechMp3 = self::_ttsApi($sentence);
if ($speechMp3) {
$mp3File = new \Mp3File($speechMp3);
$metaData = $mp3File->get_metadata();
unset($mp3File);
$duration = $metaData['Length'] + $durationError;
unlink($speechMp3);
return array('text' => $sentence, 'duration' => $duration, 'start' => $lastEnd, 'end' => $lastEnd + $duration);
} else {
return false;
}
}
public static function samplelookup(&$mp3)
{
//bits MPEG1 MPEG2 MPEG2.5
$array = array();
$array['00'] = array('44100', '22050', '11025');
$array['01'] = array('48000', '24000', '12000');
$array['10'] = array('32000', '16000', '8000');
$array['11'] = array('res', 'res', 'res');
$whichcolumn = -1;
if (Mp3File::is_mpeg10($mp3)) {
$whichcolumn = 0;
} else {
if (Mp3File::is_mpeg20($mp3)) {
$whichcolumn = 1;
} else {
if (Mp3File::is_mpeg25($mp3)) {
$whichcolumn = 2;
}
}
}
if (isset($array[$mp3['Sampling Freq Idx']][$whichcolumn])) {
return $array[$mp3['Sampling Freq Idx']][$whichcolumn];
} else {
return 'unknown';
}
}