[mythtv] Mythfrontend crash - Watch Recordings PrevieviewandTranscode

Christian Hack christianh at edmi.com.au
Fri Mar 5 21:50:30 EST 2004


----- Original Message ----- 
From: "Christian Hack" <christianh at edmi.com.au>
To: "Development of mythtv" <mythtv-dev at mythtv.org>
Sent: Saturday, March 06, 2004 12:33 PM
Subject: Re: [mythtv] Mythfrontend crash - Watch Recordings
PrevieviewandTranscode


>
> ----- Original Message ----- 
> From: "Kenneth Aafl°y" <ke-aa at frisurf.no>
> To: "Development of mythtv" <mythtv-dev at mythtv.org>
> Sent: Saturday, March 06, 2004 12:11 PM
> Subject: Re: [mythtv] Mythfrontend crash - Watch Recordings Previeview
> andTranscode
>
>
> On Friday 05 March 2004 23:20, Kenneth Aafl°y wrote:
> > On Friday 05 March 2004 18:10, Isaac Richards wrote:
> > > On Friday 05 March 2004 09:34 am, Christian Hack wrote:
> > > > Previewing a DVB recording I get the attached stack trace 100% of
the
> > > > time.
> > > >
> > > > I notice it doesn't say segfault but rather SIGABRT.
> > >
> > > <snip>
> > >
> > > > This same recording also gives mythtranscode a lot of grief. It
simply
> > > > allocates all the memory it can and then bails with an aborted
> message.
> > > > The second attached backtrace is of that SIGABRT.
> > > >
> > > > I'm guessing these are the same thing though right?
> > >
> > > Yeah, same thing.  I've committed a quick bandaid that should stop
this
> > > from happening, but to fix it properly I would like to see the first
> 20MB
> > > or so of the file.
> >
> > I wonder if the attached patch will actually aid in catching the
biterror
> > without the patch committed by Isaac. I've not tested this patch beyond
> > compilation on my system, because my backend is busy recording stuff
right
> > now.
> >
> > Here is another version, that i've tested|debugged|pondered apon tonight
> when
> > spending the time on freenode.org #mythtv with o_vee. I's working very
> well,
> > but it  would take a lot of time to download that 50MB file over 128bps,
> so
> > if Christian could test this it would be wonderfull, if he (or others)
> > reports that it does not work for the same kind of fault, then I better
> start
> > downloading the file.
>
> So just apply this to my CVS _before_ Isaac's "bandaid" fix? i.e. what I
> currently have in my sandbox (about 18 hours old).
>
> Should only take about an 70-80 minutes to DL over my cable connection, so
> if you want to have a go Kenneth, knock yourself out. I can make it a
> smaller file (say 20MB) if that would be enough.
>

OK tried your patch Kenneth without Isaac's bandaid and it's all good.
There's a small glitch but that's in the file since Windows playing it shows
the same problem. Tried it a number of times and it plays through the
badness. Also doesn't give the weird "Video has changed: 2693 20766 from:
720 576" message anymore

Mythtranscode seems to be handling it OK as well.

So thanks Kenneth, that fix seems good to go here.

CH



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