[yocto] pulseaudio madness

[Tomas Frydrych]

On 06/02/13 13:50, Gary Thomas wrote:
> On 2013-02-05 06:52, Burton, Ross wrote:
>> Hi Gary,
>>
>> On 5 February 2013 12:44, Gary Thomas <gary at mlbassoc.com> wrote:
>>> I have a multi-media application/system (built with Poky/Yocto of
>>> course)
>>> that is currently using ALSA for the sound.  This works great but now
>>> I'd like to be able to share some of the sound resources, in particular
>>> the audio output (speakers).  To satisfy this, I looked at pulseaudio,
>>> but I'm overwhelmed by the package choices (there are 120 packages),
>>> not to mention what to do about configuration.
>>>
>>> I don't see any examples (images, etc) that use pulseaudio.
>>>
>>> Does anyone have any recommendations on what I might need to install,
>>> how to configure it, etc, to take over from my simple ALSA setup?
>>
>> The top tip is the PulseAudio documentation on the web site, that
>> lists all the plugins and what they do.  The pulseaudio-server package
>> depends on all of the important plugins, so that gives you a working
>> PA setup once you've started it.
>>
>> You might want to have a look at Guacamayo's use of PA, that uses it
>> and will automatically switch output when new speakers are plugged in
>> too.    https://github.com/Guacamayo
> 
> Thanks, that helped.  I've built Guacamayo for my RaspberryPi and
> can see how it's set up.
> 
> One thing I'm missing is how the pulseaudio server gets started?

Depends on the image type, either from /eta/xdg/autostart, or for the
audiplayer image from the /etc/init.d/guacamayo-session-* script.

Tomas