函数 av_get_profile_name 

pub unsafe extern "C" fn av_get_profile_name(
    codec: *const AVCodec,
    profile: c_int,
) -> *const c_char

Return a name for the specified profile, if available.

@param codec the codec that is searched for the given profile @param profile the profile value for which a name is requested @return A name for the profile if found, NULL otherwise.