[mythtv-users] Fwd: Problem with XvMC being slow
adeffs at gmail.com
Fri Jan 6 17:37:14 UTC 2006
On Friday 06 January 2006 00:05, Jerry Rubinow wrote:
> On 1/5/06, Jerry Rubinow <jerrymr at gmail.com> wrote:
> > On 1/5/06, Joseph A. Caputo <jcaputo1 at comcast.net> wrote:
> > > On Thursday 05 January 2006 1:21, Jerry Rubinow wrote:
> > > > When using XvMC to play back video, CPU usage is low (30% for HD, 10%
> > > > for SD), but the video plays back slower than realtime. I'm using an
> > > > Nvidia 5200 card, with driver version 7667 (although I've tried every
> > > > version up to the current 8XXX).
> > > >
> > > > Is there anything I should check? Anything obviously wrong from the
> > > > following details? Or is this the XvMC slowdown I've read about?
> > > > What are my options for fixing this?
> > >
> > > I could be way off base on this, but something in my memory is nagging
> > > me... something about maybe Nvidia's XvMC not supporting/performing
> > > well at certain resolutions? Have you tried changing your horizontal
> > > resolution to something smaller, like 1024?
> > No, but that's a good suggestion - I'll try it tonight. Thanks.
> No luck. I tried setting both X and the GUI setup in myth to 800x600
> and it's still slow playing HD. Not stuttering, just slower than real
> time. I didn't mention before, but I'm using pretty much a straight
> following of Jarod's guide with FC4, 2.6.14, on a P4 2.8.
> I'm so close to having beautiful HD playback, can anybody suggest things to
poney up for a faster processor? I know its prbly not an optioin, but with a
3.0 or 3.2GHz cpu you'll be able to play back HD without XvMC.
Does OpenGL sync work with XvMC? I dunno, but might be worth a try. Also, try
disabling any deinterlacing? Oh, what about audio buffering options, have you
played with those?
Also, don't forget you have to restart mythfrontend everytime you make one of
these changes. minor bug...
More information about the mythtv-users