Function decode_slice

libavcodec/rv60dec.c:2246–2294

}

static int decode_slice(AVCodecContext *avctx, void *tdata, int cu_y, int threadnr)
{
    RV60Context *s = avctx->priv_data;
    AVFrame * frame = tdata;
    ThreadContext thread;
    GetBitContext gb;
    int qp, sel_qp, ret;

    thread.avg_data[0] = thread.avg_buffer;
    thread.avg_data[1] = thread.avg_buffer + 64*64;
    thread.avg_data[2] = thread.avg_buffer + 64*64 + 32*32;
    thread.avg_linesize[0] = 64;
    thread.avg_linesize[1] = 32;
    thread.avg_linesize[2] = 32;

    if ((ret = init_get_bits8(&gb, s->slice[cu_y].data, s->slice[cu_y].data_size)) < 0)
        return ret;

    for (int cu_x = 0; cu_x < s->cu_width; cu_x++) {
        if ((s->avctx->active_thread_type & FF_THREAD_SLICE) && cu_y)
            ff_thread_progress_await(&s->progress[cu_y - 1], cu_x + 2);

        qp = s->qp + read_qp_offset(&gb, s->qp_off_type);
        if (qp < 0 || qp >= 64) {
            ret = AVERROR_INVALIDDATA;
            break;
        }
        sel_qp = calc_sel_qp(s->osvquant, qp);

        memset(thread.coded_blk, 0, sizeof(thread.coded_blk));
        thread.cu_split_pos = 0;

        if ((ret = decode_cu_r(s, frame, &thread, &gb, cu_x << 6, cu_y << 6, 6, qp, sel_qp)) < 0)
            break;

        if (s->deblock) {
            thread.cu_split_pos = 0;
            deblock_cu_r(s, frame, &thread, cu_x << 6, cu_y << 6, 6, qp);
        }

        if (s->avctx->active_thread_type & FF_THREAD_SLICE)
            ff_thread_progress_report(&s->progress[cu_y], cu_x + 1);
    }

    if (s->avctx->active_thread_type & FF_THREAD_SLICE)
        ff_thread_progress_report(&s->progress[cu_y], INT_MAX);

    return ret;
}

static int rv60_decode_frame(AVCodecContext *avctx, AVFrame * frame,
                             int * got_frame, AVPacket * avpkt)