Function ff_nvdec_start_frame

libavcodec/nvdec.c:575–611

}

int ff_nvdec_start_frame(AVCodecContext *avctx, AVFrame *frame)
{
    NVDECContext *ctx = avctx->internal->hwaccel_priv_data;
    FrameDecodeData *fdd = frame->private_ref;
    NVDECFrame *cf = NULL;
    int ret;

    ctx->bitstream_len = 0;
    ctx->nb_slices     = 0;

    if (fdd->hwaccel_priv)
        return 0;

    cf = av_mallocz(sizeof(*cf));
    if (!cf)
        return AVERROR(ENOMEM);

    cf->decoder = av_refstruct_ref(ctx->decoder);

    cf->idx_ref = av_refstruct_pool_get(ctx->decoder_pool);
    if (!cf->idx_ref) {
        av_log(avctx, AV_LOG_ERROR, "No decoder surfaces left\n");
        ret = AVERROR(ENOMEM);
        goto fail;
    }
    cf->ref_idx = cf->idx = *cf->idx_ref;

    fdd->hwaccel_priv      = cf;
    fdd->hwaccel_priv_free = nvdec_fdd_priv_free;
    fdd->post_process      = nvdec_retrieve_data;

    return 0;
fail:
    nvdec_fdd_priv_free(cf);
    return ret;

}

int ff_nvdec_start_frame_sep_ref(AVCodecContext *avctx, AVFrame *frame, int has_sep_ref)
{