Function write_frame_header

libavcodec/flacenc.c:1413–1447

static void write_frame_header(FlacEncodeContext *s)
{
    FlacFrame *frame;
    int crc;

    frame = &s->frame;

    put_bits(&s->pb, 16, 0xFFF8);
    put_bits(&s->pb, 4, frame->bs_code[0]);
    put_bits(&s->pb, 4, s->sr_code[0]);

    if (frame->ch_mode == FLAC_CHMODE_INDEPENDENT)
        put_bits(&s->pb, 4, s->channels-1);
    else
        put_bits(&s->pb, 4, frame->ch_mode + FLAC_MAX_CHANNELS - 1);

    put_bits(&s->pb, 3, s->bps_code);
    put_bits(&s->pb, 1, 0);
    write_utf8(&s->pb, s->frame_count);

    if (frame->bs_code[0] == 6)
        put_bits(&s->pb, 8, frame->bs_code[1]);
    else if (frame->bs_code[0] == 7)
        put_bits(&s->pb, 16, frame->bs_code[1]);

    if (s->sr_code[0] == 12)
        put_bits(&s->pb, 8, s->sr_code[1]);
    else if (s->sr_code[0] > 12)
        put_bits(&s->pb, 16, s->sr_code[1]);

    flush_put_bits(&s->pb);
    crc = av_crc(av_crc_get_table(AV_CRC_8_ATM), 0, s->pb.buf,
                 put_bytes_output(&s->pb));
    put_bits(&s->pb, 8, crc);
}


static inline void set_sr_golomb_flac(PutBitContext *pb, int i, int k)