> I have a quick question. I’m looking to add the capability of adding an RTP 
> stream that is specified only by a URL of the form “rtp://<ip>:<port>” This 
> is an add on to an existing video widget. I have also seen examples where 
> people specify the URL as “rtp://@<ip>:<port>”
>  
> Is this possible with Live555?

No, because this type of URL (which has never been standardized) doesn't give 
you enough information about the stream.  In particular, it doesn't tell you 
the RTP payload format (i.e., the data type) of the stream.  Also, specifying 
only one port number isn't enough, because to properly receive a RTP stream, 
you need to know not just the stream's destination RTP port, but also the RTCP 
port on which the sender should receive RTCP "RR" packets back from the 
receiver.

Instead, the best way to receive a stream is to use the RTSP protocol (i.e., a 
"rtsp://" URL).  This protocol gives the client all of the information that it 
needs to receive the stream.


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

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