[mythtv-users] xvmc / ivtv / GeForce FX

[Chris Wieringa]

>This may seem to be an ignorant question but...
>I bought the GeForce FX for it's supposed hdwe
>decoding capabilities to go with my PVR-250 hdwe
>encoding.  
>
>The PVR-250 works great for recording/encoding < 10%
>cpu.  However the FX does not seem to do any hdwe
>decoding.  The cpu > 90% so obviously it's not hdwe
>decoding.
>
>I've tried using the mplayer.conf settings:
>
>vo=xvmc,cv,
>vc=ffmpeg12mc,mpeg12,
>double=yes
>
>and it seems not to make a difference.
>
>I see alot on the list about new ivtv libs from 12 Jan
>as well as making the change to settings.pro to
>include the xvmc libs.  I have to assume by the
>context of the settings.pro file in cvs that it is
>library directives for a make/build if I have co'd
>everything from cvs.  Correct?
>
>Thanks for any help / suggestions.

First off, make sure you have some of the latest Nvidia drivers installed - I know the 4496 and 5328 drivers work fine with XvMC.  If that is in correctly, try to play one of the streams you've recorder via mplayer * myplayer -vc ffmpeg12mc -vo xvmc file.mpeg .  You should see a quick blue flash at the start of the stream, that's what I get at least.

If you have compiled in XvMC support correctly, the OSD will be gray instead of blue.  Also, I would recommend using the Myth CVS version if you want to do XvMC stuff - it's a lot better than what is out in 0.13.  

Chris Wieringa
cwieri39 at calvin.edu