[Openal] OpenAL-Soft & multiple devices on one card

[Troy Yee]

Chris:

I hope my last wasn't taken as being critical... it wasn't meant to be.

I'm definitely going to need a way to open something other than the
first of the enumerated devices sharing the same name.  What is the
current release plan (timing) for OpenAL Soft 1.7?

Troy. 


On Thu, 2009-02-26 at 07:04 -0800, Troy Yee wrote:
> Thanks for your response Chris.  I can't say it was the answer I was
> hoping for though!  I'm far from expert on ALSA but it strikes me that
> different ALSA tools are able to discriminate between the different
> devices - are they using something outside of the ALSA API to do that?
> 
> T.
> 
> On Wed, 2009-02-25 at 20:36 -0800, Chris Robinson wrote:
> > On Wednesday 25 February 2009 8:00:37 pm Troy Yee wrote:
> > > I want to be able to choose which output of the SB Audigy is used
> > > (without changing the default device).  When I enumerate the devices the
> > > list I get looks like this:
> > >
> > > Available playback devices:
> > >     ALSA Software on default
> > >     ALSA Software on CA0106 [CA0106]
> > >     ALSA Software on CA0106 [CA0106]
> > >     ALSA Software on CA0106 [CA0106]
> > >     ALSA Software on CA0106 [CA0106]
> > >     ALSA Software on Intel ICH6 [Intel ICH6]
> > >     ALSA Software on Intel ICH6 [Intel ICH6 - IEC958]
> > >     OSS Software
> > >     Wave File Writer
> > >
> > > As you can see, there are several entries that have the same name.  How
> > > do I open the 2nd (3rd, ...) one?
> > 
> > Hi, Troy.
> > 
> > Unfortunately in this case, it doesn't look like you can. I don't know why 
> > ALSA doesn't make sure devices have unique names since they're used for 
> > identification purposes. I can probably append extra stuff to the string for 
> > OpenAL Soft 1.7 to make sure they're unique, though it would make already long 
> > strings (such as the second Intel one) even longer..
> > 
> > Another option may be for OpenAL Soft to use HAL to retrieve the available 
> > ALSA devices, like Phonon does. That would let a user define their own devices 
> > in .asoundrc and be picked up automatically. I'd need to look into how that 
> > works though, as I'm not quite sure how to do it.
> > _______________________________________________
> > Openal mailing list
> > Openal at opensource.creative.com
> > http://opensource.creative.com/mailman/listinfo/openal
> 
> _______________________________________________
> Openal mailing list
> Openal at opensource.creative.com
> http://opensource.creative.com/mailman/listinfo/openal