[vdr] Re: DVB over emu10k1 !?

[Andreas Schultz <aschultz@warp10.net>]

On Saturday 10 May 2003 11:57, Onno wrote:
> Armin Janssen schrieb:
> > On Tue, 6 May 2003 11:51:13 +0200
> > Dieter Bloms <dieter@bloms.de> wrote:
> >
> > Hi Dieter!
> >
> >>Hi Armin,
> >>
> >>On Tue, May 06, Armin Janssen wrote:
> >>>Is there a way to send the sounf from the DVB-card (1.3) to an
> >>>emu10k1 soundcard and then to an 5.1 soundsystem?
> >>>I've running an vdr-1.1.30 and it works realy good, but sound only
> >>>in stereo :-(
> >>>Can anyone help me?
>
> unfortunately our heros (the developers) all seem to have
> DD Hardware (recievers) so nobody realy cares about soft-decoding
> AC3 to 5.1 analog output (allthough CMI87xx as well as SB5.1

well, i don't have DD hardware and i do care about soft-decoding, the only 
thing i don't have is time to start yet another project. BUt, i would gladly 
help testing and debugging a SoftAC3out plugin if someone elsa would write 
it.

[...]

> i think thats because of the uncertain legal status, technically there
> is no obstacle i can see.

it should be fairly easy either using liba52 or ffmpeg. the bitstreamout 
plugin might be a good place to start, either a an addition to it or just to 
take it appart and reuse most of it.

> a52dec uses 1-5% cpu on an 850Celeron, mplayer evev usese only 1-2% cpu,

the DVD plugin is already decoding the DVD's AC3 tracks, but only to dolby 
surround, even 166MHz Pentiums work.

> so i wounder why people want to by AV3-Hardware decoders.

the do deliver even better quality

[...]

> but then i took the easy way (because of trouble in volumecontrol)

volume control is certainly going to be a major problem. i never figured out 
which mixer controls what. alsa's emu10k can be a bit a headache there 
(IMHO).

Andreas


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