[mythtv] XvMC studdering
ignasiak at gmail.com
Mon Jan 16 20:39:57 UTC 2006
I hadn't updated my SVN version in a few weeks, and had turned off XvMC
because of a few glitches. So, I updated it yesterday and turned XvMC
back on. My initial tests were excellent, very good XvMC playback, no
stuttering, perfect playback on 1080i and 720p material. (In the past, I
had been getting some stuttering on 720p when the OSD came up).
Maybe some of the changes that Kevin mentioned have helped this.. My
system is: Gentoo x86-64, kernel 2.6.14, NVidia driver 7676, FX5200 video
card, latest MythTV svn as of last night, HD3000 and FusionHDTV3 QAM
On 1/15/06, Jerry Rubinow <jerrymr at gmail.com> wrote:
> On 1/15/06, Matt <skd5aner at gmail.com> wrote:
> > On 1/15/06, Kevin Kuphal <kuphal at dls.net> wrote:
> > > Kevin Kuphal wrote:
> > > > I'm working on testing some XvMC support for my GeForce MX 440 card
> > > > anticipation of trying HD recording and playback and I've built my
> > > > master backend frontend with XvMC and OpenGL Vsync now and I'm
> trying to
> > > > playback some MPEG-2 content which normally plays back just fine on
> > > > system without XvMC but I'm getting very studdery playback.
> > > >
> > > Just an update. I updated to the latest SVN and the segfault is gone
> > > and I get solid XvMC playback with or without OpenGL Vsync. Thanks
> > > bearing with me. I wonder if I was hitting that XvMC segfault that
> > > Daniel fixed. Either way it works. Now I need to wrestle with
> > > or not to pick up an Avermedia HDTV tuner to pull the QAM stations off
> > > my cable provider. So tempting with the "big football game coming" :)
> > >
> > > Kevin
> > Kevin,
> > Thanks for posting this info. I've never been able to get XvMC to
> > play without studdering, and that's with NTSC standard def. I haven't
> > tried it in a long time, but when I get a chance, I'll try again with
> > latest SVN and let you know how it works for me.
> > Thanks!
> > Matt
> Today I finally got XvMC playback working, after trying lots of
> different settings, drivers, etc. What finally got rid of stuttering
> and slow playback for me was increasing the ringbuffer size. My
> symptoms in the log were lots of "prebuffer pause" and "video ahead of
> audio" messages (so probably not the same thing as Kevin's problem).
> mythtv-dev mailing list
> mythtv-dev at mythtv.org
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