'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/]
