[pulseaudio-discuss] Decode SPDIF compressed formats

Tanu Kaskinen tanuk at iki.fi
Wed Jul 12 16:41:48 UTC 2017

On Tue, 2017-07-11 at 23:21 +0300, Denis Shulyaka wrote:
> Hi list,
> I am making a small project, a home sound server. It will have a 5.1 analog
> output and S/PDIF optical input, besides others. The server has to mix all
> inputs and send them to the output.
> My initial proof-of-concept with a loopback module failed when I realized
> that S/PDIF interface can receive compressed formats that sounded like a
> loud white noice to me instead of music.
> Can pulseaudio handle compressed audio streams apart from passthrough? You
> cannot passthrough to an analog output without decode.
> I've found some different info here:
> https://www.freedesktop.org/wiki/Software/PulseAudio/Documentation/Developer/Passthrough/
> And here:
> https://lists.freedesktop.org/archives/pulseaudio-discuss/2015-March/023322.html
> But could not understand its current status.

No, pulseaudio can't decode compressed formats.



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