There is a bug in MPC-HC 2.1.2 for XP and LAVFilters 0.78.0 for XP.
The h264 file can't be played correctly with NVIDIA CUVID.
But
LAV 0.74.1.9-git is working.
XP SP3
Directx 9.0c
GTX960 + 368.81
MPC 1.7.13.32
LAV 0.74.1.9-git
No Hardware Acceleration
H264 with DXVA2 NVIDIA CUVID
VP9(H265) with DXVA2 NVIDIA CUVID