[mythtv-users] Commercial Skip - Video freezes & Audio Fast Forwards

Greg Hermsen g.hermy15 at gmail.com
Wed Dec 17 22:21:44 UTC 2008

On Wed, Dec 17, 2008 at 3:51 PM, Michael T. Dean <mtdean at thirdcontact.com>wrote:

> On 12/17/2008 02:27 PM, Stackpole, Chris wrote:
> > From: Greg Hermsen
> >> I've had mixed results with commercial skip.  The promise is shows is
> big enough that I haven't given up on it yet. Commercial skipping will work
> well for a day or two, then at some point where MythTV should skip a
> commercial, the video freezes and the audio goes into a high-speed,
> >> unintelligible mode.  I'm not able to stop it.  After anywhere from 10 -
> 20 minutes MythTV returns to the listing of recorded shows.  I assume that
> when the audio reaches the ended of the recorded program is when MythTV
> unfreezes from commerial skip
> >>
> >> Has anybody else seen this?  Is there something I can do to fix this?
> > I had this issue sometime ago with Myth .20 something and Knoppmyth. I
> > checked the log files and found an error (don't remember which one right
> > now)
> I'll fill in the blank for you:

Thanks Mike.  I give this a try.

Chris, I am running Mythbuntu 0.21.20080304-1  18704

Thanks again.

> Error was: Driver error was [2/145]:
> QMYSQL3: Unable to execute query
> Database error was:
> Table './mythconverg/recordedseek' is marked as crashed and should be
> repaired
> >  and after a google search I found a lot of people had that error
> > and that it had been fixed. I switched over to Mythbuntu and MythTV .21
> > the problem went away.
> >
> Probably because MythBuntu packagers have set up MythBuntu systems to
> automatically run optimize_mythdb.pl.
> So, OP, you should run optimize_mythdb.pl (while mythbackend is running)
> to fix the crashed table (and, really, it doesn't hurt to run it in a
> cron job at least once per month--though once per day works great at
> fixing crashed tables before you notice them).  You can find
> optimize_mythdb.pl in the contrib directory of the source distribution,
> but most packagers include it in the install somewhere (use locate or
> ask someone who's using your distro for more specific info).
> Once you repair the database with optimize_mythdb.pl, you may still see
> some recordings with the same problem.  For them, you have 2 choices:
> 1) delete the recording (and re-record it if desired) or 2)
> http://www.mythtv.org/wiki/index.php/Repairing_the_Seektable .
> Basically, the seektables of /any/ recordings you made while the table
> was crashed will be corrupt/need repairing.  The seektables of /some/
> recordings that were made before the table crashed /could/ be
> corrupt/need repairing.  You'll have to run mythtranscode --buildindex
> (for MPEG-2 recordings) or mythcommflag --rebuild (for NUV recordings,
> including software-encoded recordings from frame grabbers or
> lossy-transcoded recordings) on each affected recording individually.
> Mike
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