[Live-devel] Multicast Q

[xcsmith at rockwellcollins.com]

In order to support mutlicast, 'testMPEG1or2VideoStreamer' would have to 
be integrated/started to allow the running RTSP Server to perform 
mutlicast playback.  Is this correct or has multicast support been 
incorporated into an RTSP Server?

As you will see in the mailing list, I already tried add multicast to the 
On-Demand servers.  I would really recommend that you switch to using 
unicast if you want to have On-Demand sessions.  The LIVE555 can use 
unicast to "fake" On-Demand multicast sessions (send the same data to all 
clients via unicast), so your users should not be able to tell the 
difference.  I tried to dig through the code and see if I could implement 
On-Demand multicast, but it would be a real pain to do without 
changing/adding a lot of source because PassiveServerMediaSubsession 
requires the Groupsocks setup before construction, among other things. 
Also, it really does not make that much sense to implement.

Is there a client already available that supports having the client setup 
the multicast destination & port

If you want to use the streamer applications, you will have to implement 
this yourself in the RTSPClient class and also make a small change to 
PassiveServerMediaSubsession, but it is not so bad to do.

xo 
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