2010/2/24 Lennart Poettering <mznyfn@xxxxxxxxxxx> > On Tue, 23.02.10 12:47, Raymond Yau (superquad.vortex2@xxxxxxxxx) wrote: > > > > > The most common onboard audio is HDA so this is not any exceptional > cases > > > > > > > > Those HDA multi streaming feature are most users wanted in desktop > > > > enviornment, are pulseaudio really designed for deskop or just only > for > > > > notebook and mobile ? > > > > > > > > The front panel green/pink jack can be used by one application while > the > > > > rear panel audio jacks can be used to another application for > surround or > > > > mic for karaoke > > > > > > I am not entirely convinced that this is really a common case. > > Uh, I wanted to say "use case" here... > > > Do any PA developer has a desktop computer with HDA audio ? > > I certainly do. But the fact that this is not the most common use case > and the ALSA API is not really up to the task yet to query the full > routing table I am not sure supporting parallel and independant > streaming support for heapdphones and speakers should be a priority for PA. > > > if ( snd_pcm_info_get_subdevices_count(pcm_info) > 1 ) && ( > > snd_pcm_info_get_subdevices_count(pcm_info) < 8 )) > > > > snd_mixer_selem_id_set_index(sid, snd_pcm_info_get_subdevice(pcm_info)); > > Are you suggesting that on all drivers the the index part of a > snd_mixer_selem_id_t directly relates to the subdevice id of a PCM > stream on the same card? Is that true? Jaroslav, Clemens, Takashi, can > you say something about that? > > (tbh I find that very unlikely, given that the device index would not be > encoded then) > > Lennart > This is only true for those Capture controls for HDA since only HDA support multi streaming The reason of using ( snd_pcm_info_get_subdevices_ count(pcm_info) < 8 ) is au88x0 have at least 8 capture subdevices which capture from one source from AC97 codec _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
