On 07.11.2011 22:38, Tanu Kaskinen wrote:
On Mon, 2011-11-07 at 10:23 +0000, Colin Guthrie wrote:
'Twas brillig, and Ben Bucksch at 07/11/11 02:55 did gyre and gimble:
On 07.11.2011 03:34, Ben Bucksch wrote:
Is there a module that can run a (configurable) shell command when
* sound output is needed, i.e. an application plays a sound, and
it's not muted
* no sound output is needed anymore, after a certain configurable
timeout, e.g. no sound played in the last 120 minutes
? Effectively, this would work exactly like a screen saver, just for
sound, not for the screen/input.
FYI: Ford_Perfect pointed me to
http://0pointer.de/blog/projects/device-reservation.html
http://git.0pointer.de/?p=reserve.git;a=blob_plain;f=reserve.txt
(if anybody has better solutions, please let me know)
Ahh interesting. Yeah you could use this to know when PA is playing
sound. All you'd need is a simple dbus integration and you could write
your app accordingly completely separate of PA.
The other option is to get your hands dirty, write a module in PA and
use that.
I don't see why server-side solution would be better in this case.
I didn't claim that. I agree, system-wide or not is irrelevant for this
question.
Ben, you seemed to think that having mplayer on pause running all the
time would have this same problem. I don't think that's the case -
mplayer should set the stream to "corked" state while paused.
Corked streams don't keep the sink in the "running" state, so just monitoring
the sink state should be enough.
OK, great, that's good then. I wouldn't know. All I know is that I often
have 2-3 applications listed in pavucontrol, including mplayer on pause
often.
If that's not a problem, and pulse closes the audio device despite this
and therefore notifies via dbus, I'm happy and can try to use this
approach, i.e. write a small dbus app.
(The device reservation solution might also work well, and if it does,
it's probably the easiest solution to implement, at least if you're
already familiar with D-Bus.)
Yes. I'm vaguely familiar with dbus, I used it once before. I found
mozjs-dbus, which has a nice implementation of "listen until service
name X appears" that I can implement in any language.
Ben
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