Function get_current_frame

libavcodec/av1dec.c:1213–1274

}

static int get_current_frame(AVCodecContext *avctx)
{
    AV1DecContext *s = avctx->priv_data;
    int ret;

    av1_frame_unref(&s->cur_frame);

    s->cur_frame.header_ref = av_refstruct_ref(s->header_ref);

    s->cur_frame.raw_frame_header = s->raw_frame_header;

    ret = init_tile_data(s);
    if (ret < 0) {
        av_log(avctx, AV_LOG_ERROR, "Failed to init tile data.\n");
        return ret;
    }

    if ((avctx->skip_frame >= AVDISCARD_NONINTRA &&
            (s->raw_frame_header->frame_type != AV1_FRAME_KEY &&
             s->raw_frame_header->frame_type != AV1_FRAME_INTRA_ONLY)) ||
        (avctx->skip_frame >= AVDISCARD_NONKEY   &&
             s->raw_frame_header->frame_type != AV1_FRAME_KEY) ||
        avctx->skip_frame >= AVDISCARD_ALL)
        return 0;

    if (s->pix_fmt == AV_PIX_FMT_NONE) {
        ret = get_pixel_format(avctx);
        if (ret < 0) {
            av_log(avctx, AV_LOG_ERROR, "Failed to get pixel format.\n");
            return ret;
        }

        if (!ret && FF_HW_HAS_CB(avctx, decode_params)) {
            ret = FF_HW_CALL(avctx, decode_params, AV1_OBU_SEQUENCE_HEADER,
                             s->seq_data_ref->data, s->seq_data_ref->size);
            if (ret < 0) {
                av_log(avctx, AV_LOG_ERROR, "HW accel decode params fail.\n");
                return ret;
            }
        }
    }

    ret = av1_frame_alloc(avctx, &s->cur_frame);
    if (ret < 0) {
        av_log(avctx, AV_LOG_ERROR,
               "Failed to allocate space for current frame.\n");
        return ret;
    }

    global_motion_params(s);
    skip_mode_params(s);
    coded_lossless_param(s);
    order_hint_info(s);
    load_grain_params(s);

    s->cur_frame.force_integer_mv =
        s->raw_frame_header->force_integer_mv ||
        s->raw_frame_header->frame_type == AV1_FRAME_KEY ||