[mythtv] [PATCH] -- picking wrong AC-3 audio stream to play

Brad Templeton brad+mydev at templetons.com
Fri Feb 18 00:16:01 UTC 2005


On Thu, Feb 17, 2005 at 04:02:11PM -0600, Kevin Kuphal wrote:
> Brad Templeton wrote:
> >It's not there in the mythtv keys documentation...  Where is this
> >documented?
> > 
> >
> It's in the keys.txt from CVS right now.  Not sure if that was included 
> in 0.17 but I thought that patch was applied prior to the release.


Best to find out, since it should go into the web docs if it's in 0.17.

However, clearly we also want the program to pick a working audio channel
if it can, so users don't have to hunt down or use this sort of command.

For better or worse, xine and mplayer are able to handle this and pick
the right track.  It may be just luck or perhaps they know something?

I suppose in the extreme one could even notice that the chosen track
is silent, though tracks are sometimes silent at the start making this
hard slogging.  (PBS in particular.  Here, pbs-hd starts broadcasting at
8pm.  So if you record a show at 8pm, and have a buffer on, you get
a buffer's worth of silence.

Is it only KQED-DT that's doing this triple AC-3 audio stream I'm seeing,
or have other people suddently found their PBS digital audio to be
missing?


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