[linux-dvb] Re: AC3 the fastest way ???

[Klaus Schmidinger <Klaus.Schmidinger@cadsoft.de>]

Guido Fiala wrote:
> 
> On Wednesday, 20. June 2001 20:56, Klaus Schmidinger wrote:
> > Stefan.Hagendorn@lindy.cc wrote:
> > > Hi all,
> > >
> > > why not implementing the ac3 output the same way like Mtjaz made it in
> > > DVDPLAYER .... this is a fast and for everyone usable sollution ... the
> > > code how to get the stream out can be get from dvdplayer ...
> > >
> > > With an configureable target for ac3 streams anyone can decide how to
> > > handle it like pipe into a file or into a fifo ... or even a programm ...
> >
> > That's exactly how I intend to do it.
> > VDR will get a command line option which defines the program into which
> > to pipe the AC3 data while replaying or viewing. That way everybody can
> > do this the way the actual system needs it.
> 
> Sounds fine, unfortunately i found those programs having a large latency, so
> that the audio comes much to late - should vdr have an option for delaying
> the video against the audio in [ms] then?

VDR can surely do this when replaying a recorded file.
But what about live viewing? The video will be delivered directly
to the Video-Out of the DVB card, and the AC3 audio will go through
some program that ultimately sends it to a sound card or an external
AC3 decoder. I would assume that the AC3 data broadcast from the
tv station should by default arrive somewhat earlier than the
video data in order to compensate for this delay. But we'll have to
see what happens when we actually have the AC3 data steam...

Klaus
-- 
_______________________________________________________________

Klaus Schmidinger                       Phone: +49-8635-6989-10
CadSoft Computer GmbH                   Fax:   +49-8635-6989-40
Hofmark 2                               Email:   kls@cadsoft.de
D-84568 Pleiskirchen, Germany           URL:     www.cadsoft.de
_______________________________________________________________


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