Function ffmpeg::ffi::av_find_best_pix_fmt_of_2

pub unsafe extern "C" fn av_find_best_pix_fmt_of_2(
    dst_pix_fmt1: c_int,
    dst_pix_fmt2: c_int,
    src_pix_fmt: c_int,
    has_alpha: c_int,
    loss_ptr: *mut c_int
) -> c_int