[alsa-devel] Pulseaudio alsa configure hook

[Takashi Iwai]

At Sat, 10 May 2008 21:46:25 +0200,
Sjoerd Simons wrote:
> 
> On Wed, Apr 30, 2008 at 06:20:40PM +0200, Takashi Iwai wrote:
> > At Sun, 27 Apr 2008 22:37:09 +0200,
> > >   The attached patch extends the alsa pulse plugin set with a alsa
> > >   configuration hook. Allowing one to specify some configuration parameters
> > >   that only come into effect when pulseaudio is running.
> > > 
> > >   For example a configution file like:
> > > 
> > >     @hooks [ {
> > >        func on_pulse_is_running
> > >          pcm.!default { type pulse }
> > >          ctl.!default { type pulse }
> > >        }
> > >    ]
> > > 
> > >   will redirect the default alsa pcm and ctl to pulse iff pulse is running.
> > >   (Assuming you defined the hook function correctly ofcourse)
> 
> > This looks pretty interesting.
> > I forgot that this kind of stuff can be also a plugin :)
> > 
> > Applied to HG tree now.
> 
> Thanks :).. Unfortunately some more testing revealed some issues with it,
> specifically if pulse is running your complete config is replaced the bits in
> the on_pulse_is_running directive. Which might not be what one actually wants :)
> 
> I couldn't find a proper solution for this. So i've changed the code to
> optionally load config files. Just like the load hook does. Actually i just
> optionally call the snd_config_hook_load function, but that's not actually in
> the alsa API....
> 
> Also it now decides pulse is running as soon as the authorizing step begins
> (just after the actually connection is setup), which should save some
> round-trips and overhead.
> 
> Updated patch attached :)

Thanks.  Applied to ALSA tree again.


Takashi