/**
* Returns the files bitrate if available otherwise returns -1.
*
* @access public
* @author Oliver Lillie
* @param boolean $read_from_cache
* @return mixed Returns the bitrate as an integer if available otherwise returns -1.
*/
public function readBitrate($read_from_cache = true)
{
return parent::getFileBitrate($this->_media_file_path, $read_from_cache);
}
