[Live-devel] consistent combinations for streaming

[Emmanuel DUFOUR]

I'm testing a little application written with library live.com.
I want to test different king of features:
-streaming method: Video On Demand (VOD) or Continuous Streaming (CS)
-RTSP server built or not
-multicast or unicast diffusion
-RTP over TCP or UDP
and I wonder what combinations of these features 
1) have sense 2) are possible with live.com latest version and 3) how

I hope the following questions are not too confused. I guess they should be at 
least a little because it's still confused in my mind... and that's why I ask 
them here ;-) 

Thanks,
Emmannuel DUFOUR

QUESTIONS ARE HERE:
-When multicast mode is used without RTSP server, an IP is choosen by 
chooseRandomIPv4SSMAddress(*env). Is it the address of the multicast group ? 
Is it this address that has to be used to access the stream with a client 
such as VLC (it requires IP and port in the multicast case) ?

-When unicast mode is used without RTSP server, does that mean the only one IP 
address that can access the stream is that we set in destinationAddressStr ?
Connection is done directly to RTP ports used which have to be known before
(rtpPortVideo). In this case, RTCP ports are they useless ?

-What is SSM option in the test programs ==> to force multicast mode ?

-CS with a RTSP server is almost ever used in multicast mode but
 I saw in the archive it is possible to use it in unicast mode. I tried to use 
vobStreamer with destinationAddressStr=<single IP address>
 and then connect to vobStreamer from this IP. When connecting, the client ask 
for unicast BUT vobStreamer refuses. Its response contains IP 0.0.0.0 and I 
don't know why. It's not the IP I have set in destinationAddressStr! 
What's wrong ?
Sending request: SETUP rtsp://genius:9999/007/track1 RTSP/1.0
CSeq: 2
Transport: RTP/AVP;unicast;client_port=6666-6667
User-Agent: VLC Media Player (LIVE.COM Streaming Media v2004.01.19)

Received SETUP response: RTSP/1.0 200 OK
CSeq: 2
Transport: RTP/AVP;multicast;destination=0.0.0.0;port=6666;ttl=255
Session: 4

-CS used without a RTSP server: can we use both multicast or unicast in the 
same way they are used with a RTSP server ?

-VOD is almost ever used with unicast but
 is it POSSIBLE to use it in multicast mode whatever the sense it could have? 
I mean to connect to RTSP port and during the negociation, instead of 
choosing unicast destination, choosing multicast one for RTP. If yes, how ?