2010/2/24 Lennart Poettering mznyfn@0pointer.de
On Tue, 23.02.10 12:47, Raymond Yau (superquad.vortex2@gmail.com) 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