AHI and dynamic samples (MAME sound)

Hi everybody,

I'm playing around with sound for my MAME port at the moment.

Can someone tell me please how to work out the current play pointer if the stream? I need to know where in my buffer to start putting my data.
Alternatively I could do it with double-buffered audio but I want to keep latency down to a minimum.

Is there good example source I can look at to see how this should be done?
Thanks!

Do you have one huge buffer that is continuously playing, and you like to insert data at-position-'now' whenever there is data?

You could use double-buffer and always insert data in the middle, then you get half the latency, but risk missing the start of a sound :)