[Live-devel] openRTSP -r -p

[Ross Finlayson]

>To get around this, we are using openRTSP with the -r and -p options 
>(openRTSP -r -p 20006 rtsp://192.168.1.9:8554/path/video.ts) and 
>receiving the RTP data with a separate application (just receiving 
>it, counting how much we receive, and throwing it away).  However, 
>at 45 seconds, our RTP streaming stops (consistently).  The video 
>file is definitely longer than this (and works properly without -r 
>-p).  We believe it may be related to the server not receiving some 
>sort of heartbeat (maybe via RTCP).

That's exactly what's happening.  The server apparently uses RTCP 
"RR" packets - from the receiver - as a liveness indication.  If it 
doesn't receive these, it assumes that the receiver has died, and it 
times out the session.

If your RTSP server uses our implementation, then you can modify it 
to disable this timeout by setting the "reclamationTestSeconds" 
parameter from 45 to 0.  (E.g., if you are using the "LIVE555 Media 
Server", then see "DynamicRTSPServer.cpp", line 44.)

Alternatively, of course, you could add RTCP to your reception application.
-- 

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