[Live-devel] RTP over TCP

[Ross Finlayson]

> To prevent this situation, I tried adding a check to SocketDescriptor::tcpReadHandler1() in the AWAITING_DOLLAR case to prevent it from calling fServerRequestAlternativeByteHandler if the byte read was 0xFF or 0xFE.  This is, of course, a hack on top of a hack.

Yes, but since the original 'hack' (i.e., using 0xFE and 0xFF as special 'signaling' bytes) relies upon the fact that we don't expect these characters to appear within RTSP requests or responses, it seems reasonable to modify the code - as you did - to check for this.

Just to make sure we're on the same page here, please send a "diff" containing your modification, and I'll include it in the next release of the software.


> I’ve contacted the camera vendor to find out why they put this mystery data in between the RTP packets sometimes.  But here I wanted to ask if that was even allowed per the RTSP spec

No, definitely not.  There shouldn't be any extra data like this appearing in the TCP stream.  It's apparently a bug in the network camera.


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

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