http://bugs.winehq.org/show_bug.cgi?id=35868
--- Comment #2 from Anastasius Focht focht@gmx.net --- Hello Sebastian,
it seems VLC for Windows may also be a suitable candidate for testing the implementation (it uses DXVA for GPU-assisted decoding):
https://wiki.videolan.org/VLC_GPU_Decoding/
Regards