Function d3d12va_encode_create_metadata_buffers

libavcodec/d3d12va_encode.c:265–315

}

static int d3d12va_encode_create_metadata_buffers(AVCodecContext *avctx,
                                                  D3D12VAEncodePicture *pic)
{
    D3D12VAEncodeContext *ctx = avctx->priv_data;
    int width = sizeof(D3D12_VIDEO_ENCODER_OUTPUT_METADATA) + sizeof(D3D12_VIDEO_ENCODER_FRAME_SUBREGION_METADATA);
#if CONFIG_AV1_D3D12VA_ENCODER
    if (ctx->codec->d3d12_codec == D3D12_VIDEO_ENCODER_CODEC_AV1) {
        width += sizeof(D3D12_VIDEO_ENCODER_AV1_PICTURE_CONTROL_SUBREGIONS_LAYOUT_DATA_TILES)
            + sizeof(D3D12_VIDEO_ENCODER_AV1_POST_ENCODE_VALUES);
    }
#endif
    D3D12_HEAP_PROPERTIES encoded_meta_props = { .Type = D3D12_HEAP_TYPE_DEFAULT }, resolved_meta_props;
    D3D12_HEAP_TYPE resolved_heap_type = D3D12_HEAP_TYPE_READBACK;
    HRESULT hr;

    D3D12_RESOURCE_DESC meta_desc = {
        .Dimension        = D3D12_RESOURCE_DIMENSION_BUFFER,
        .Alignment        = 0,
        .Width            = ctx->req.MaxEncoderOutputMetadataBufferSize,
        .Height           = 1,
        .DepthOrArraySize = 1,
        .MipLevels        = 1,
        .Format           = DXGI_FORMAT_UNKNOWN,
        .SampleDesc       = { .Count = 1, .Quality = 0 },
        .Layout           = D3D12_TEXTURE_LAYOUT_ROW_MAJOR,
        .Flags            = D3D12_RESOURCE_FLAG_NONE,
    };

    hr = ID3D12Device_CreateCommittedResource(ctx->hwctx->device, &encoded_meta_props, D3D12_HEAP_FLAG_NONE,
                                              &meta_desc, D3D12_RESOURCE_STATE_COMMON, NULL,
                                              &IID_ID3D12Resource, (void **)&pic->encoded_metadata);
    if (FAILED(hr)) {
        av_log(avctx, AV_LOG_ERROR, "Failed to create metadata buffer.\n");
        return AVERROR_UNKNOWN;
    }

    ctx->hwctx->device->lpVtbl->GetCustomHeapProperties(ctx->hwctx->device, &resolved_meta_props, 0, resolved_heap_type);

    meta_desc.Width = width;

    hr = ID3D12Device_CreateCommittedResource(ctx->hwctx->device, &resolved_meta_props, D3D12_HEAP_FLAG_NONE,
                                              &meta_desc, D3D12_RESOURCE_STATE_COMMON, NULL,
                                              &IID_ID3D12Resource, (void **)&pic->resolved_metadata);

    if (FAILED(hr)) {
        av_log(avctx, AV_LOG_ERROR, "Failed to create output metadata buffer.\n");
        return AVERROR_UNKNOWN;
    }

    return 0;
}

static int d3d12va_encode_issue(AVCodecContext *avctx,
                                FFHWBaseEncodePicture *base_pic)