[Live-devel] A simple question about RTSP client/server implementation

Ross Finlayson finlayson at live.com
Thu May 13 21:08:26 PDT 2004


>So RTSP implemented by Live.com actually uses TCP? Or, the setup and
>response is in TCP but later the transmissio is in UDP?

That's correct.

Note the distinction between RTSP (the control protocol) and RTP (the data 
protocol - i.e., carrying the actual audio/video data).

RTSP uses TCP, to ensure reliability.

RTP usually uses UDP, but can optionally use TCP (the same channel that 
RTSP uses).

For more information, see 
<http://www.live.com/liveMedia/faq.html#general-rtp-question>, and 
<http://www.rtsp.org/>


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



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