Thank you for your clarification on the subject. I'll keep studying it. Claudio Roberto Fran?a Pereira (a.k.a. Spidey) hardMOB - HTForum - @spideybr Engenharia de Computa??o - 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/] > > _______________________________________________ > pulseaudio-discuss mailing list > pulseaudio-discuss at lists.freedesktop.org > http://lists.freedesktop.org/mailman/listinfo/pulseaudio-discuss
