> Thanks for the quick response.  I have upgraded both the client and server to 
> the May 3rd 2015 edition and the result appears to be the same.  On the 
> receiving side I am still getting packets which appear to contain data (or 
> random garbage), and the head == tail, so the frame size is zero.  VLC still 
> does the switching to TCP thing.  I suspect I am doing something wrong in 
> sending my frames, not sure what.  And if so, why would it work over TCP?
> 
> 

If the problem were with the data that you were streaming, then it’s unlikely 
that streaming would work over TCP, but not UDP.  But to be sure, I suggest 
first running the (unmodified) “LIVE555 Media Server” application 
<http://www.live555.com/mediaServer/ <http://www.live555.com/mediaServer/>>, to 
test streaming from a file.  I suspect, though, that you’ll see the same 
result: streaming RTP/RTCP-over-TCP will work, but RTP/RTCP-over-UDP won’t.

In my experience, problems with receiving RTP/RTCP-over-UDP are almost always 
caused by the presence of a firewall - somewhere between the server and client 
- that’s blocking UDP packets.


Ross Finlayson
Live Networks, Inc.
http://www.live555.com/

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