[mythtv] record/playback bug

[Eli Criffield]

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
>  

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