[gstreamer-bugs] [Bug 473841] [playbin] use mixer interface when setting volume

[GStreamer (bugzilla.gnome.org)]

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  GStreamer | gst-plugins-base | Ver: HEAD CVS




------- Comment #15 from Bastien Nocera  2008-01-30 15:54 UTC -------
(In reply to comment #14)
> (In reply to comment #12)
> > Remote control volume? What does that mean?
> 
> Changing the volume from an external process.
> 
> > > What about manipulating application volume without PulseAudio? I would suggest
> > > an interface for that kind of remote control, but I can hear you saying "to a
> > > dbus guy, everything is a dbus pb"...:)
> > 
> > That doesn't seem to have anything to do with the problem we're discussing in
> > this bug, and I don't see how changing the volume in applications has anything
> > to do with which mixer playbin would be using.
> 
> It's related since pavucontrol will be able to change the volume of pulseaudio
> sinks. You reviewed the patch making the same kind of comment: it goes one way
> (from the app/playbin), what about the other way (from pavucontrol/remote)

I'm talking about the mixer in playbin noticing the changes done by external
programs, just like the volume applet syncs the volume with
gnome-volume-control. I've never talked about any D-Bus (or whatever) API to
modify the application's volume from another application. This is completely
out of topic here.

(In reply to comment #13)
> I'm thinking about moving the volume control in the baseaudiosink class where
> it can be changed with a lower latency. Optionally sinks that have other ways
> of changing the per-stream volume could override and do something else
> (pulseaudio, ...). 
> 
> The end result would be that every audio sink has a volume (interface?
> property?) that changes the per-stream volume.

Sounds like it would fit exactly what we'd need.


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