[Openal] alSourceUnqueueBuffers while stopped

[Garin Hiebert]

>
> I get AL_INVALID_VALUE = 0xA003 error if I try to use 
> alSourceUnqueueBuffers while source is stopped. Is it only possible to 
> unqueue processed buffers while source is playing (why)?

When a source is stopped, all queued buffers should be marked as 
processed and can be unqueued, so if you've found an implementation 
which doesn't work this way, it's an error.  Which implementation are 
you using?  If on Windows, if you know which device you are opening, 
that would be helpful information.

Also, make sure that the error you are seeing is coming from the 
alSourceUnqueueBuffers operation -- reset the code with an alGetError 
right before the call...

Garin