Function ff_vaapi_decode_make_slice_buffer

libavcodec/vaapi_decode.c:75–136

}

int ff_vaapi_decode_make_slice_buffer(AVCodecContext *avctx,
                                      VAAPIDecodePicture *pic,
                                      const void *params_data,
                                      int nb_params,
                                      size_t params_size,
                                      const void *slice_data,
                                      size_t slice_size)
{
    VAAPIDecodeContext *ctx = avctx->internal->hwaccel_priv_data;
    VAStatus vas;
    int index;

    av_assert0(pic->nb_slices <= pic->nb_slice_buffers_allocated);
    if (pic->nb_slices == pic->nb_slice_buffers_allocated) {
        VABufferID *tmp =
            av_realloc_array(pic->slice_buffers,
                             pic->nb_slice_buffers_allocated ? pic->nb_slice_buffers_allocated * 2 : 64,
                             2 * sizeof(*pic->slice_buffers));
        if (!tmp)
            return AVERROR(ENOMEM);

        pic->slice_buffers = tmp;
        pic->nb_slice_buffers_allocated = pic->nb_slice_buffers_allocated ? pic->nb_slice_buffers_allocated * 2 : 64;
    }
    av_assert0(pic->nb_slices + 1 <= pic->nb_slice_buffers_allocated);

    index = 2 * pic->nb_slices;

    vas = vaCreateBuffer(ctx->hwctx->display, ctx->va_context,
                         VASliceParameterBufferType,
                         params_size, nb_params, (void*)params_data,
                         &pic->slice_buffers[index]);
    if (vas != VA_STATUS_SUCCESS) {
        av_log(avctx, AV_LOG_ERROR, "Failed to create slice "
               "parameter buffer: %d (%s).\n", vas, vaErrorStr(vas));
        return AVERROR(EIO);
    }

    av_log(avctx, AV_LOG_DEBUG, "Slice %d param buffer (%zu bytes) "
           "is %#x.\n", pic->nb_slices, params_size,
           pic->slice_buffers[index]);

    vas = vaCreateBuffer(ctx->hwctx->display, ctx->va_context,
                         VASliceDataBufferType,
                         slice_size, 1, (void*)slice_data,
                         &pic->slice_buffers[index + 1]);
    if (vas != VA_STATUS_SUCCESS) {
        av_log(avctx, AV_LOG_ERROR, "Failed to create slice "
               "data buffer (size %zu): %d (%s).\n",
               slice_size, vas, vaErrorStr(vas));
        vaDestroyBuffer(ctx->hwctx->display,
                        pic->slice_buffers[index]);
        return AVERROR(EIO);
    }

    av_log(avctx, AV_LOG_DEBUG, "Slice %d data buffer (%zu bytes) "
           "is %#x.\n", pic->nb_slices, slice_size,
           pic->slice_buffers[index + 1]);