[pulseaudio-discuss] Mute and unmute individual sinks in a module-combine

[Lennart Poettering]

On Sun, 28.06.09 17:09, Timothy J Massey (tmassey at obscorp.com) wrote:

> Hello!
> 
> Still working on my multi-zone setup.  The goal is to have multiple 
> instances of MPD playing, and being able to be routed to 0 or more zones 
> simultaneously.  Each player is connected to a unique sink created with 
> module-combine, with each of these combined sinks including *all* of the 
> physical sinks.  Something like this:
> 
> #Physical sinks for actual hardware
> load-module module-alsa-sink device=hw:1,0 sink_name=zone1
> load-module module-alsa-sink device=hw:2,0 sink_name=zone2 
> load-module module-alsa-sink device=hw:3,0 sink_name=zone3 
> #Module-combine sinks for handling each MPD
> load-module module-combine sink_name=mpdplayer1 slaves=zone1,zone2,zone3
> load-module module-combine sink_name=mpdplayer2 slaves=zone1,zone2,zone3
> load-module module-combine sink_name=mpdplayer3 slaves=zone1,zone2,zone3
> 
> For now, I have a single instance of MPD playing through sink mpdplayer1. 
> When I start up MPD and play something, I get audio out of all three 
> sinks.  So far, so good.
> 
> Now, though, I would like to mute the sound in all but one of the zones. I 
> can't simply do something like:
> 
> set-sink-mute zone2
> set-sink-mute zone3
> 
> Because that would mute the outputs for those zones, and they might be 
> (and likely are) playing music from one of the other MPD sessions.  What I 
> want to do is tell the module-combined sink (mpdplayer1) to only send 
> audio to one of the sinks and to mute the output to the other two sinks.
> 
> Is this possible?  I cant seem to find a way to interact with the 
> individual channels within a module-combine...

So basically you want to add/remove underlying sinks from
a particular module-combine instance dynamically? 

We do that with the fully automatic mode right now. However, there is
no way to control this manually for a specific
instance. Sorry.

Lennart

-- 
Lennart Poettering                        Red Hat, Inc.
lennart [at] poettering [dot] net
http://0pointer.net/lennart/           GnuPG 0x1A015CC4