#287 FFDShow DXVA Video Decoder cpu util on VC-1

[Reino]

original post on Doom9's forum: http://forum.doom9.org/showthread.php?p=1544385#post1544385

Despite clsid2 having fixed VC-1 DXVA (rev4109), it almost feels as if it's not decoded through DXVA at all.
I thought MPC-HC's code and FFDShow were pretty much identical, or at least have a lot simularities, but when I'm testing a 1280x720 60fps WMV[VC-1+WMA9.2]-file with MPC-HC's internal VC-1 decoder my cpu is @ ±10% utilization and plays absolutely smooth, while with the FFDShow DXVA Video Decoder it's @ ±50% and a bit choppy every now and then.

The file concerned: http://www.mediafire.com/?61bpj6w372rkbza