bmusb::VideoFormat construct_video_format(const AVFrame *frame, AVRational video_timebase);
UniqueFrame make_video_frame(const AVFrame *frame, const std::string &pathname, bool *error);
bmusb::VideoFormat construct_video_format(const AVFrame *frame, AVRational video_timebase);
UniqueFrame make_video_frame(const AVFrame *frame, const std::string &pathname, bool *error);