public static extern AVInputFormat* av_probe_input_format(AVProbeData* pd, int is_opened);
public static extern AVInputFormat* av_probe_input_format3(AVProbeData* pd, int is_opened, int* score_ret);
public static extern AVInputFormat* av_probe_input_format2(AVProbeData* @pd, int @is_opened, int* @score_max);