[Live-devel] RTCP & Multicast

[Ross Finlayson]

>However, I've seen that some applications such as testMP3Streamer and
>testMPEG1or2VideoStreamer relay to a multicast destination and listen to
>RTCP feedback. My question is, how is RTCP handled when coming from
>multiple sources? Is it treated as a sort of ACK or the streaming server
>actively reacts upon RTCP messages?

In the LIVE.COM code at present, a sender (i.e., streamer) does nothing 
with the RTCP "RR" (Receiver Report) packets that come back from receivers 
- *except* to use this information when computing the time intervel between 
successive RTCP "SR" (Sender Report) packets that *it* sends.  I.e., it 
uses the algorithm specified in section A.7 of the RTP/RTCP specification 
<http://www.live.com/liveMedia/rtp-spec.txt>.


	Ross Finlayson
	LIVE.COM
	<http://www.live.com/>