[Openal-devel] Patch for intermittent ALSA capture

Jason Daly jdaly at ist.ucf.edu
Tue May 6 16:44:03 PDT 2008


Chris Robinson wrote:
> Hmm, that's odd. I don't remember having issues on my machine with starting
> and stopping. Though I've had other issues with apps indescriminately setting
> large buffer sizes without concern for hardware caps.. Regardless, I applied
> the fix.
>   

I only tested on one device (Intel/nVidia onboard sound), so I can't 
speak for other devices (yet).


> And sorry for being really silent lately. I've been distracted by other
> projects, and I'm not entirely sure what I want/can do with OpenAL Soft (and
> further apologies to Daniel Peacock for not replying to his email).
>   

No problem.  Any chance you'll make a new release soon?

My main concern is to get OpenAL-Soft out to the distributions.  I think 
we're mainly waiting on the new Creative web site for this, though.

> But on the subject of what to do with OpenAL Soft, I've been wondering about
> splitting out the main mixer so that it runs in a seperate process, and using
> IPC and shared memory so that multiple apps can use a unique context on the
> same device (so, for example, a media player can open a device with openal
> soft, get a context and turn off the uneeded features for faster processing,
> while a game has that same device open with 3d audio + effects, all being
> mixed and output into one ALSA/OSS device). I'm not too sure of how efficient
> I could get a setup like that working, though..
>   

This might be useful (I've run into that problem here, albeit rarely).  
I'm a bit surprised that it didn't just work through dmix, though (maybe 
I don't understand dmix well enough).

-- 

--"J"

"I'm a castaway stranded in a desolate land,
 I can see the footprints in the virtual sand."
	--Neil Peart



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