public function getVideoBitRate()
    {
        if ($this->videoBitRate === null) {
            $match = [];
            preg_match(self::$REGEX_VIDEO_BITRATE, $this->output, $match);
            $this->videoBitRate = (int)(array_key_exists(1, $match) ? ($match[1] * 1000) : 0);
        }

        return $this->videoBitRate;
    }
public function getVideoBitRate()
    {
        if ($this->videoBitRate === null) {
            $match = [];
            preg_match(self::$REGEX_VIDEO_BITRATE, $this->output, $match);
            $this->videoBitRate = (int)(array_key_exists(1, $match) ? ($match[1] * 1000) : 0);
        }

        return $this->videoBitRate;
    }
public function getVideoBitRate ( ) { if ( $ this -> videoBitRate === null ) { $ match = [ ] ; preg_match ( self :: $ REGEX_VIDEO_BITRATE , $ this -> output , $ match ) ; $ this -> videoBitRate = ( int ) ( array_key_exists ( 1 , $ match ) ? ( $ match [ 1 ] * 1000 ) : 0 ) ; } return $ this -> videoBitRate ; }
Return the bit rate of the video in bits per second.

NOTE: This only works for files with constant bit rate.

@return int
Return the bit rate of the video in bits per second .