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Old 17th February 2012, 21:46   #9175  |  Link
Pat357
Registered User
 
Join Date: Jun 2006
Posts: 452
Nev,

Is there a difference between the normal DXVA mode and DXVA copy back (besides copying frames of course) ?
I ask because I have something bizarre :
Do you remember that I had "green" screens on certain files with DVXA-CB (282.62 driver) ?
Well I am still on this driver (did not update) and with the normal DXVA mode, these files play just fine !!
I did try again with DXVA-CB --> all green screens.
normal DXVA -> all play OK !!
Each time I checked that DXVA was "active" and only for one file fall-back to softw happened, but for all other files DXVA was "active".

So this brings me to wonder whether the 285.36 driver is really the cause of the green screens.
Why can DXVA play these files while DXVA-CB can not ?
In fact i'm far more interested in DXVA-CB because of MadVR.

Can you please check why DXVA-CB fails and DXVA does not ?

Until now I mostly use CUVID for interlaced stuff (excellent deinterlacing, especially for VC1 as there is no "good" softw alternative.. oh, I forgot WM DMO, but...you know.. ).
For progressive content I mostly use SW because my of my very fast CPU. Also using CUVID puts my GTX-570 in highest power-state and as you know this is a serious overkill and very inefficient way just to watch some progressive video.
My CPU stays below 10% even for H264 1080p@60fps with 16 refs.

Last edited by Pat357; 17th February 2012 at 21:54.
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