Re: OpenAL for voicechat

To determine which OpenAL device you are using, you need to call
alcGetString(pDeviceHandle, ALC_DEVICE_SPECIFIER) after the call to
alcOpenDevice(NULL).  It could be something like "SB X-Fi [E000]" or
"Generic Software" etc ...

Your understanding of the buffer queue is correct, but in the
real-world the packets are going to arrive out of sync with processed
buffers.  Also, the number of processed buffers could vary too
depending upon which OpenAL device you are using and what ever else
the PC is doing at the time.  Your code will need to handle these
situations.  Specifically - what happens if you have received a packet
and there are no processed buffers?  What happens if an AL buffer has
been processed but you have not received any new audio data?

Dan

On Tue, Jan 26, 2010 at 5:42 PM, Peter Soxberger
<[email protected]> wrote:
> Windows Vista and OpenAL 1.1
>
> 1) Maybe I missunderstood the princip of the buffer queue but I thought it works like this:
>
> - I create 4 buffers
> - I add all 4 buffers to the queue
> - I start playing the source
> -> A new packet arrives
> - I use processed to see if there are free buffers
> - I unqueue one buffer and fill it with data
> - I add the buffer to the queue again
> (- if source stopped playing start again)
> -> A new packet arrives
> - I use processed to see if there are free buffers
> - I unqueue one buffer and fill it with data
> - I add the buffer to the queue again
> (- if source stopped playing start again)
> .
> .
> .
> and so on
>
> Isn't that correct? Do I have to unqueue all buffers that are processed in order to prevent that the processed buffers are played again?
> Or do you mean that I should only use 2 buffers?
>
> Best regards,
> Peter Soxberger
>
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