Re: [PATCH v5 0/3] MR1046: MfMediaEngine invalid format handling.

[Nikolay Sivov (＠nsivov)]

Nikolay Sivov (@nsivov) commented about dlls/mfmediaengine/main.c:
> - /* Check if supplied format is valid for render targets. */
> - memset(&texture_desc, 0, sizeof(D3D11_TEXTURE2D_DESC));
> - texture_desc.Width = 320;
> - texture_desc.Height = 240;
> - texture_desc.MipLevels = 1;
> - texture_desc.ArraySize = 1;
> - texture_desc.Format = output_format;
> - texture_desc.SampleDesc.Count = 1;
> - texture_desc.Usage = D3D11_USAGE_DEFAULT;
> - texture_desc.BindFlags = D3D11_BIND_RENDER_TARGET;
> -
> - if (FAILED(ID3D11Device_CreateTexture2D(device, &texture_desc, NULL, &texture)))
> -
>    return MF_E_INVALIDMEDIATYPE;
> -
> - ID3D11Texture2D_Release(texture);
> - media_engine_unlock_d3d_device(engine, device);

Is this really different from D3D11_FORMAT_SUPPORT_RENDER_TARGET? More importantly, what difference does this output format attribute really make? We are not using internally created texture as a render target, so why check for such support?