protected function compare($value1, $value2)
	{
		$haystack = [
			'y',
			'ignore_unknown',
			'stream_loop',
			'sseof',
			'itsoffset',
			'thread_queue_size',
			'seek_timestamp',
			'accurate_seek',
			'noaccurate_seek',
			'ss',
			'seek_start',
			'i',
			'input',
		
		];
		
		if (($value1 = array_search(ltrim($value1[0], '-'), $haystack, false)) !== false)
		{
			return ($value2 = array_search(ltrim($value2[0], '-'), $haystack)) !== false && $value1 > $value2 ? -1 : 1;
		}
		
		return -1;
	}