s->avctx->level = get_bits(&s->gb, 4);
s->progressive_sequence = get_bits1(&s->gb); /* progressive_sequence */
s->chroma_format = get_bits(&s->gb, 2); /* chroma_format 1=420, 2=422, 3=444 */
s->avctx->level = get_bits(&s->gb, 4);
s->progressive_sequence = get_bits1(&s->gb); /* progressive_sequence */
s->chroma_format = get_bits(&s->gb, 2); /* chroma_format 1=420, 2=422, 3=444 */