'Twas brillig, and Timothy J Massey at 17/06/09 19:00 did gyre and gimble:
Is there a way to communicate with modules once they're loaded? Such
as
from the PA command line?
Not really. A module would have to extend the protocol to do this kind
of stuff.
I'm surprised by that: that there isn't a way to pass them a message from
the PA command line... But so be it: protocol extensions are well beyond
what I'm looking for.
Well it's complicated by the fact that PA is not necessarily running
locally. The "client" side may be speaking to a PA server running on a
separate machine. Thus whatever input you give it, it has to go over the
wire. It's not as hard as it sounds tho'.
It probably wouldn't take too much to write such a module and avoids
complicated timing problems of connecting sources to sinks.
It's too bad that modules can't accept messages from e.g. the PA command
line. Because module-combine already does all of this. It just can't
change its list of slaves dynamically...
Yeah, I'm not sure ultimately if it makes more sense to reconfigure an
existing module-combine instance or create a whole new one, move the
sink-inputs and then trash the old one. The end result is likely the same.
Another way of doing this was given to me by Matthew Patterson. He used
module-combine to create a single virtual sink for each sink-input (i.e.
each instance of MPD), and included *each* physical sink in that virtual
sink. Then, to control what was actually playing through each physical
sink, he would simply mute all sink-inputs for that sink, and unmute the
one that the user selected. The nice thing is that this should not glitch
the audio for any sink that's not being changed.
Indeed, it's a nice approach, but not quite as dynamic as it probably
could be. Still, right now, this is a pretty nifty approach :)
Col
--
Colin Guthrie
gmane(at)colin.guthr.ie
http://colin.guthr.ie/
Day Job:
Tribalogic Limited [http://www.tribalogic.net/]
Open Source:
Mandriva Linux Contributor [http://www.mandriva.com/]
PulseAudio Hacker [http://www.pulseaudio.org/]
Trac Hacker [http://trac.edgewall.org/]
_______________________________________________
pulseaudio-discuss mailing list
[email protected]
https://tango.0pointer.de/mailman/listinfo/pulseaudio-discuss
