How many vic's on the same machine?

[Bob Riddle <bdr@internet2.edu>]

This may seem like a silly question, but I'm trying to figure out how what 
happens when you have multiple vics, on a single machine with multiple video 
capture cards, to transmit video on the same multicast address.

I setup two machines, one to do multiple video capture (two) and the other 
one to run the openmash vic to receive display the two video streams.  I 
start vic on this machine with ".\vic 233.2.171.38/42000".

On the video capture machine, I start Matthew Delco's vserver (video capture 
program using a lml33 card) using that multicast address and port.  I then 
start the AG vic capture program (using a WinTV card) using the same address. 
The display machine shows both streams, 1 mjpeg & 1 H.261.  

Here's the problem - when I start the video capture programs in reverse 
order, the AG vic first, then the Delco vserver, the vic on the display 
machine never shows the vserver mjpeg stream, just the H.261 stream.

I've been wondering if there is some problem on the video capture machine 
with the both capture programs sharing the same mcast address or if the 
display machine vic receive a H.261 stream as the first stream it never 
looks/recognizes a mjpeg stream on that same mcast address.

Any notions?


-- 
Bob Riddle (bdr@internet2.edu)	Technologist,Internet2
3025 Boardwalk, Suite 100	Ann Arbor, Michigan  48108