[mythtv-users] recordings are seconds short

Ryan Steffes rbsteffes at gmail.com
Mon Oct 29 18:20:22 UTC 2007


On 10/28/07, Tom Dexter <digitalaudiorock at gmail.com> wrote:
> On 10/28/07, Jerome Yuzyk <jerome at supernet.ab.ca> wrote:
> >
> > I've been recording and watching sports lately. Usually I add a half-hour for
> > each game.
> >
> > I've noticed over the last few weeks that my recordings are a couple seconds
> > short. For example, today's Colts-Panthers game was set to record for 3-1/2
> > hours. However, the recording is actually 3:29:57, as reported by the OSD.
> > Niggling, but I wonder about the math. I use NTPD so it's not like my clock
> > is (or should be) drifting 3 seconds over 3.5 hours, and my recordings are
> > starting on time, not 3 seconds early.
> > _______________________________________________
> > mythtv-users mailing list
> > mythtv-users at mythtv.org
> > http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
> >
>
> I'm sure your backend is in fact recording for 3-1/2 hours just as
> you've scheduled.  The OSD display calculates the time based on the
> number of frames and frame rate, which is never going to be that
> close.  As a matter of fact, dramas broadcast by NBC, because of odd
> frame rate changes etc that mythtv doesn't interpret correctly yet,
> show as around 50 to 53 minutes for me when they're actually an hour.
>

It could be that, or it could just be that it takes a second or two to
tune to the correct channel.

Ry


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