interfacing with avalon streaming protocol

thanks for your answer.

The problem is that there are others signals in Avalon-ST like the "ready" that I Don't know how to handle.

I mean, i made this simple module (http://alteraforum.com/forum/showthread.php?t=23187) using registers, but it seems to not work properly until I set a latency of 3 for both avalon sink and avalon source..

I would like to mantain my personal video streaming block sink and source latency to 1, like other megacore functions.