[pulseaudio-discuss] [WIP] Passthrough support

[Kelly Anderson]

Arun,

I've been trying to get higher bit rates to passthrough with no luck.  
Is setting the channel count supported with passthrough (yet)?

It seems that 384k sample rates aren't supported directly in alsa, I did 
some patching to no avail yet.

In any case if the channel count can be specified with passthrough the 
following should work.

paplay --raw --channels=2 --rate=192000 --passthrough 
File.dts.spdif192khz ( this works).

paplay --raw --channels=4 --rate=192000 --passthrough 
File.dts.spdif384khz ( this fails).

To passthrough dolby true-hd it looks like it'll be necessary for more 
than two channels to work.