[vlc-devel] SIP for VLC

Ross Finlayson finlayson at live555.com
Wed Nov 7 15:27:32 CET 2007

>Hi Rémi, I think I explained myself badly. What 
>I need to do is an IPTV kind of like service 
>using SIP instead of RTSP

This is a bad idea, because there are no IETF 
standards right now for doing this.  At present, 
the IETF standard protocol for IPTV/VOD-type 
service is RTSP (for setup and control) and 
RTP/RTCP (for data).  Therefore, you should use 
RTSP/RTP/RTCP, as implemented already in VLC (and 
many other products).

There has been some talk - within the IETF - 
about possibly defining and standardizing some 
sort of hybrid protocol that combines SIP (for 
setup) with RTSP (for control (including 'trick 
play')), and still using RTP/RTCP for data. 
However, until this happens, it's definitely not 
something that you should try to fudge yourself.

Ross Finlayson
Live Networks, Inc.

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