[pulseaudio-discuss] Missing analog profiles

[Spidey / Claudio]

Thank you for your clarification on the subject. I'll keep studying it.

Claudio Roberto França Pereira (a.k.a. Spidey)
hardMOB - HTForum - @spideybr
Engenharia de Computação - UFES 2006/1


On Mon, Jun 20, 2011 at 11:04, Colin Guthrie <gmane at colin.guthr.ie> wrote:
>
> 'Twas brillig, and Spidey / Claudio at 20/06/11 14:11 did gyre and gimble:
> > Yeah. I've also taken the time to learn about Pulse Audio, it's
> > modules, it's configuration files. It's definitely cool. There is just
> > one thing I didn't understand fully. Is it ALSA that starts the PA
> > daemon?
>
> It can do.
>
> Basically PA is started on demand when needed by the client library. PA
> clients are any application that wants to use PA (all of these
> applications, so far and as thoroughly recommended, use the libpulse
> client library we ship). This would include volume control apps (e.g.
> pavucontrol, kmix, applets etc.) and sound output apps (e.g. rhythmbox,
> amarok etc.)
>
> Our bridging layer between applications which only speak to alsa (the
> alsa-pulse plugin) also uses libpulse and thus turns any alsa
> application into a pulse client too.
>
> So by following this logic, an alsa client can launch PA if needed.
>
>
> We also start PA in other ways too: Most notibly when X11 is
> initialised. Normally, an autospawned PA will exit after a period of
> being idle. With X11 involved we know the user is still there (even if
> they've gone to make a cup of tea!), so we don't want to exit PA until
> the user has logged out of X11. Therefore we also use an XDG autostart
> file to start PA when X11 inits, and also load some X11 specific modules
> into PA to prevent this automatic exit until X11 quits.
>
>
> There is something similar done for the KDE support module that is
> loaded into PA when KDE initialises.
>
>
> HTHs
>
> Col
>
>
>
> --
>
> Colin Guthrie
> gmane(at)colin.guthr.ie
> http://colin.guthr.ie/
>
> Day Job:
>  Tribalogic Limited [http://www.tribalogic.net/]
> Open Source:
>  Mageia Contributor [http://www.mageia.org/]
>  PulseAudio Hacker [http://www.pulseaudio.org/]
>  Trac Hacker [http://trac.edgewall.org/]
>
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