所謂在Windows上..
微軟採行的標準稱為DXVA..
基本上的目的如這張圖:

大致推行DXVA最常用的標準如這些:
==WMV==
WMV8_A (WMV8_PostProc) Profile
WMV8_B (WMV8_MoComp) Profile
WMV9_A (WMV9_PostProc) Profile
WMV9_B (WMV9_MoComp) Profile
WMV9_C (WMV9_IDCT) Profile
==VC-1==(DXVA2.0)
VC1_A (VC1_PostProc) Profile
VC1_B (VC1_MoComp) Profile
VC1_C (VC1_IDCT) Profile
VC1_D (VC1_VLD) Profile
==H264/AVC==(DXVA2.0)
DXVA_ModeH264_MoComp_NoFGT Profile
DXVA_ModeH264_MoComp_FGT Profile
DXVA_ModeH264_IDCT_NoFGT Profile
DXVA_ModeH264_IDCT_FGT Profile
DXVA_ModeH264_VLD_NoFGT Profile
DXVA_ModeH264_VLD_FGT Profile
==MPEG2==
MPEG1_A Restricted Profile
MPEG2_A Restricted Profile
MPEG2_B Restricted Profile
MPEG2_C Restricted Profile
MPEG2_D Restricted Profile

你可以先用小日本的DXVA Checker去判讀您的GPU支援能力..
http://bluesky23.hp.infoseek.co.jp/