[mythtv-users] HD video (just "Lost TV show") slows down during play/sound unsyncs

Marc MERLIN marc_mtv at merlins.org
Wed Feb 24 05:39:51 UTC 2010


On Wed, Feb 17, 2010 at 01:06:40PM -0600, Goluboff wrote:
> > I can't quite figure that out. I have mythtv 0.21.0+fixes19961-0ubuntu8.
> >
> > I've had it working for a long time. HD shows like Heroes and 10 other kinds
> > record and play fine (recorded through HD Homerun).
> > Lost used to be fine, but this season, playback has been bad: the picture
> > slows down and then catches up from time to time while the sound gets out of
> > sync on my main frontend.
> > I checked that my CPU usage is only 30% (dual core duo 3GHz), and I'm
> > playing with xv.
> >
> > I've tried playing the same show on my laptop and the picture still slows
> > down and speeds up a bit, but the sound doesn't seem to get out of sync
> > there.
> >
> > Any clue what might be going on?
> 
> Are you running mythcommflag during the recording? I used to have the
> same problem you had, and then went to setup and set it to run
> mythcommflag after the recording, and that's been fixed now.
> 
> I'm not sure why, it might be an issue of not being able to write to
> disk fast enough (to both the recording and the seektable), but maybe
> you should try it out. The downside is you won't have commercial
> detection until after the recording is done.

Thanks for the tip, it might indeed be just that.

It took me a while to find the setting, which for some reason is hidden in
mythtv-setup, but I'll see if it works better for next week.

Thanks,
Marc
-- 
"A mouse is a device used to point at the xterm you want to type in" - A.S.R.
Microsoft is to operating systems & security ....
                                      .... what McDonalds is to gourmet cooking
Home page: http://marc.merlins.org/  


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