Function av_video_hint_create_side_data

pub unsafe extern "C" fn av_video_hint_create_side_data(
    frame: *mut AVFrame,
    nb_rects: usize,
) -> *mut AVVideoHint

Same as av_video_hint_alloc(), except newly-allocated AVVideoHint is attached as side data of type AV_FRAME_DATA_VIDEO_HINT_INFO to frame.