[mythtv-users] XvMC and OSD

[Alan Hagge]

I had a similar question:  I'm on an Athlon XP 1700+ (o/c ed to 2000+), 
and HD content plays back smoothly (finally) using XvMC, but not Xv.  
However, even with XvMC, playback gets jumpy and I see "prebuffering 
pause" messages if the OSD is displayed.

Does putting up the OSD force MythTV to revert to doing the composite 
via software and using Xv for display?  Or can the video and the OSD be 
shipped to the video card using XvMC to be composited and displayed?

Basically I'm wondering if my jumpy playback with OSD CAN be solved in 
XvMC or if I need to buy a faster CPU and use Xv to get smooth playback 
in all cases.

Any XvMC developers on this list?  If so, kudos to your XvMC 
improvements.  I've read stories about people's issues with XvMC, but 
I've been using it with a CVS checkout from last week and it's working 
GREAT (except the above).  CPU usage on HD hovers around 45-55%.  Woo hoo!

Robert Johnston wrote:

>Having just upgraded to 0.17 (And then to 0.17-CVS after finding the
>.deb's don't have XvMC enabled by default), I'm seeing that the OSD is
>still in black and white (As it was in 0.16), but now whenever the OSD
>displays, the picture jumps and jitters, as though the timebase is
>jumping all over.
>
>The black-and-white OSD I could live with (Using Sasquach-OSD there's
>not much colour anyway), but the jittering is unacceptible.
>
>Has any solution been found for this yet? Anyone working on it?
>