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

Nick Rout nick.rout at gmail.com
Wed May 5 06:55:39 UTC 2010


On Wed, May 5, 2010 at 5:48 PM, Marc MERLIN <marc_mtv at merlins.org> wrote:
> On Tue, Feb 23, 2010 at 09:39:51PM -0800, Marc MERLIN wrote:
>> 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.
>
> For the sake of the archive the fix was to upgrade from mythtv 0.21 to 0.23:
> it was mythplayer that was having playback issues (I found out after running
> mplayer on a lost recording that mythplayer just couldn't play right and
> mplayer worked fine).

And here's me thinking it was just part of the makers of "Lost"
playing with you??


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