[MPlayer-users] mencoder: failure to copy audio tracks on certain DVDs

[Reimar Döffinger]

On Sat, Feb 22, 2014 at 08:57:54PM +0100, Pascal Stumpf wrote:
> On Sat, 22 Feb 2014 20:21:14 +0100, Reimar =?iso-8859-1?Q?D=F6ffinger?= wrote:
> > On Sat, Feb 22, 2014 at 08:07:48PM +0100, Pascal Stumpf wrote:
> > > On Sat, 22 Feb 2014 18:34:45 +0100, =?utf-8?Q?Reimar_D=C3=B6ffinger?= wrote:
> > > > On 22.02.2014, at 17:02, Pascal Stumpf <Pascal.Stumpf at cubes.de> wrote:
> > > > > On Sat, 22 Feb 2014 16:56:36 +0100, Pascal Stumpf wrote:
> > > > >> On Sat, 22 Feb 2014 14:52:12 +0000 (UTC), Carl Eugen Hoyos wrote:
> > > > >>> Pascal Stumpf <Pascal.Stumpf <at> cubes.de> writes:
> > > > >>> 
> > > > >>>> ds_fill_buffer: EOF reached (stream: audio)  
> > > > >>>> MPEG: No audio stream found -> no sound.
> > > > >>>> dump: 0 bytes written to 'stream.dump'.
> > > > >>> 
> > > > >>> I originally assumed that the DVD plays fine with 
> > > > >>> MPlayer, does it?
> > > > >> 
> > > > >> Yes.
> > > > > 
> > > > > FWIW, this is mplayer -v during playback:
> > > > 
> > > > It kind of has the same issue:
> > > > 
> > > > > ds_fill_buffer: EOF reached (stream: audio)  
> > > > > MPEG: No audio stream found -> no sound.
> > > > 
> > > > It just finds audio later on.
> > > > Possibly using -novideo will help, but I'd probably need a sample to fix it properly.
> > > 
> > > Nope, it just segfaults, leaving *no* coredump behind.
> > 
> > Yes, -novideo is a bit unreliable unfortunately...
> > 
> > > Sample is pretty hard to provide, since I'd have to copy the whole DVD
> > > ...
> > 
> > I think -dumpstream and the first 10 MB or so would probably be enough
> > to show the issue.
> > In a single command (if it works):
> > mplayer -dumpstream -endpos 10mb dvd://2
> > output will be in stream.dump, and hopefully shows the same behaviour
> > as using the DVD directly (please check, and if not try larger sizes,
> > if it works you can also try to reduce the size, but make sure both the
> > initial "no audio" happens as well as the audio appearing later on when
> > playing it with mplayer).
> 
> Yes, worked fine with 10mb.  Thanks for looking into it. :)

I fixed -novideo, but I suspect it won't help in this case, so
I would still need a/the sample to fix it, this is too tricky
to try without a test-case.