To do multiple stream decoding,I should use D3D9,or D3D11?

[Zheng_L_]

my program do multiple video stream decoding,every stream create it's sole use decoder, and there are 2 platform for hardware accelerated decoder on windows : MFX_IMPL_VIA_D3D9 and MFX_IMPL_VIA_D3D11,so which one should I use? Is D3D11 better than D3D9?

[Zheng_L_]

I forgot to say my program use OpenGL to display video, not DirectX, and I use WGLEW_NV_DX_interop extension to do texture copy, or GPU->CPU->GPU memory copy;