[mythtv] record/playback bug

Eli Criffield myth at zendo.net
Tue Mar 11 09:17:57 EST 2003


I guess i forgot the url of the file, you can get the file here

http://mammoth.org/~ecriffield/nuv/1037_20030310190000_20030310200000.nuv

eli

On Tue, Mar 11, 2003 at 08:53:47AM -0600, Eli Criffield wrote:
> I'm pretty sure the bug is in the recording of the file and not the
> playback. I uploaded a file to a web server with a lot of bandwidth so 
> you should be able to reproduce it by importing the file to myth and 
> playing it.
> 
> The file is big (865M) but if you have some kind of broadband it shouldn't
> take to long to download, it may even be able to reproduce if you only download
> part of the file.
> 
> If that doesn't work i can recompile with debugging or run it though gdb.
> 
> thanks
> 
> eli
> 
> On Mon, Mar 10, 2003 at 02:18:53PM -0800, Bruce Markey wrote:
> > Eli Criffield wrote:
> > > I tried playing a show recorded earlier and it does the same thing with the
> > > time. The OSD displays the wrong time, way behind the actual time in the
> > > show. Then weird things happen like if i fast forward it actually goes
> > > back-wards in the file (presumably to where it thinks it is and the OSD
> > > reports it is). Rewinding just doesn't work at all. My problems are
> > > probably in part the same as the no-rewind bug previously mentioned.
> > 
> > There seems to be problems related to seeking for some
> > recordings and also audio sync with some recordings. These
> > may or may not be related but both have been difficult to
> > pin down. You previously reported an interesting variation
> > where the playback previews ran at the wrong speed. If you
> > still have recordings with this behavior, I'd de interested
> > in seeing this debug output.
> > 
> > Thanks,
> > 
> > --  bjm
> > 
> > 
> > -------- Original Message --------
> > Subject: Re: [mythtv] fast playback problem
> > Date: Thu, 27 Feb 2003 11:40:54 -0800
> > From: Bruce Markey <bjm at lvcm.com>
> > Reply-To: Development of mythtv <mythtv-dev at snowman.net>
> > To: Development of mythtv <mythtv-dev at snowman.net>
> > References: <20030224135344.B6188 at joey.criffield.net>
> > 
> > Eli Criffield wrote:
> > ...
> >  > Oh and the preview in the corner of the first playback screen is playing
> >  > back fast not matter what the settings are.
> > 
> > This really shouldn't happen. It ought to simply play ~30
> > frames per second so this may be the best clue to track
> > down the problem. The preview should not be affected by
> > audio buffering, jitter reduction, or commercial skip code.
> > 
> > If you still see the fast playback on the previews, please
> > try this debug output. This first column should increment
> > about every 30th frame. The second should increase by about
> > 33 for each frame and the last column should always be 29.97.
> > Please send a sample of the output if you see anything
> > significantly different.
> > 
> > --  bjm
> 
> > Index: MC/libs/libmythtv/NuppelVideoPlayer.cpp
> > ===================================================================
> > RCS file: /var/lib/cvs/MC/libs/libmythtv/NuppelVideoPlayer.cpp,v
> > retrieving revision 1.140
> > diff -u -r1.140 NuppelVideoPlayer.cpp
> > --- MC/libs/libmythtv/NuppelVideoPlayer.cpp	25 Feb 2003 04:45:21 -0000	1.140
> > +++ MC/libs/libmythtv/NuppelVideoPlayer.cpp	27 Feb 2003 19:32:57 -0000
> > @@ -1674,6 +1674,9 @@
> >          // calculate 'delay', that we need to get from 'now' to 'nexttrigger'
> >          gettimeofday(&now, NULL);
> >  
> > +	cerr << now.tv_sec % 1000 << '\t' << now.tv_usec / 1000
> > +	     << '\t' << video_frame_rate << endl;
> > +
> >          delay = (nexttrigger.tv_sec - now.tv_sec) * 1000000 +
> >                  (nexttrigger.tv_usec - now.tv_usec); // uSecs
> >  
> 
> > _______________________________________________
> > mythtv-dev mailing list
> > mythtv-dev at snowman.net
> > http://www.snowman.net/mailman/listinfo/mythtv-dev
> 
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