[vdr] Re: cAudio Plugin

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

Robert Schneider wrote:
> 
> Hi all (and especially Klaus, congratulations to the award),

Thanks :-)

> I'm investigating on how a plugin could make use of the cAudio class to
> process AC3 data and forward it via the dvb-s' internal SPDIF port.
> 
> So far the Audio class is working and I get the right calls, however I
> have problems understanding:
> 
>         a) how I can make vdr prevent sending the regular PCM stream to
> the card (while replaying a recording)
>                 my understanding is that all registered cAudio classed get
> called which might lead to multiple audio outputs
>         b) how I can obtain access to a class (or the device) to write my
> processed AC3 data to the card
>                 my investigation on the AIO patch show that the processed
> AC3 data is writton into a cFrame which is then
>                 forwarded via an AudioCallback function
> 
> Can someone shed some light on this for me?

AC3 over the DVB card's S/PDIF will most likely be done directly inside
cDvbDevice, since this is a matter of the DVB device itself.
See my comment in cDvbDevice::PlayAudio().

I'm not sure yet how switching off the "normal" audio will be done.

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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