Dxva2Renderer.cpp - Line: 372 hr = E_NOINTERFACE

[mofo7777]

Dxva2Renderer.cpp - Line: 372 hr = E_NOINTERFACE

[mofo7777]

Hello.

From the doc : DXVAHD_CreateDevice :

E_NOINTERFACE : The Direct3D device does not support DXVA-HD.

It seems your GPU does not support DXVA-HD. A workaround could be to use IDirectXVideoProcessor instead of IDXVAHD_VideoProcessor :

DXVA Video Processing

What's your GPU ?

[smourier]

Indeed, it's an AMD Radeon RX 5600 XT, it probably doesn't support it.

I guess this it it: https://stackoverflow.com/questions/60567404/video-rendering-on-windows-when-dxva-hd-is-not-available

[mofo7777]

Hello.

I've added H264Dxva2DecoderSourceCodeForAtiCard.7z in SourceCodeForAtiCards directory. It is a quick implementation. Could you give me feedback. Thank you.

[smourier]

It works fine now.

It's interesting to note (on my PC), it takes around 35% of the GPU while when I use Windows 10's basic "Movies & TV" app, it runs at around 13% GPU (but takes an extra 5% off dwm.exe).

Also, 35% is roughly the same usage as for the old "Windows Media Player" as well as VLC.

[mofo7777]

Thank you.

I suppose Windows 10 uses ID3D11VideoDecoder or ID3D12VideoDecoder, instead of IDirectXVideoDecoder.

Here is a way to improve performance : direct3d-9ex-improvements.

If GPU only supports DirectX9, perhaps the technic above is used.

Also in Dxva2Renderer.cpp could you replace all :

IF_FAILED_THROW(m_pDevice9Ex->Present(NULL, NULL, NULL, NULL));

with :

IF_FAILED_THROW(m_pDevice9Ex->PresentEx(NULL, NULL, NULL, NULL, 0));

and send me feedback about GPU usage, thank you.