Function encode_parse_info

libavcodec/vc2enc.c:240–264

VC-2 10.4 - parse_info() */

/* VC-2 10.4 - parse_info() */
static void encode_parse_info(VC2EncContext *s, enum DiracParseCodes pcode)
{
    uint32_t cur_pos, dist;

    align_put_bits(&s->pb);

    cur_pos = put_bytes_count(&s->pb, 0);

    /* Magic string */
    ff_put_string(&s->pb, "BBCD", 0);

    /* Parse code */
    put_bits(&s->pb, 8, pcode);

    /* Next parse offset */
    dist = cur_pos - s->next_parse_offset;
    AV_WB32(s->pb.buf + s->next_parse_offset + 5, dist);
    s->next_parse_offset = cur_pos;
    put_bits32(&s->pb, pcode == DIRAC_PCODE_END_SEQ ? 13 : 0);

    /* Last parse offset */
    put_bits32(&s->pb, s->last_parse_code == DIRAC_PCODE_END_SEQ ? 13 : dist);

    s->last_parse_code = pcode;
}

/* VC-2 11.1 - parse_parameters()
 * The level dictates what the decoder should expect in terms of resolution