Date: Sun, 14 Feb 1999 06:56:10 +0100 (MET) From: Luigi Rizzo <luigi@labinfo.iet.unipi.it> To: O.Hodson@cs.ucl.ac.uk (Orion Hodson) Cc: multimedia@FreeBSD.ORG Subject: Re: good or bad idea ? (vat-related...) Message-ID: <199902140556.GAA27644@labinfo.iet.unipi.it> In-Reply-To: <1337.918946194@cs.ucl.ac.uk> from "Orion Hodson" at Feb 13, 99 10:49:35 pm
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> > Ok the thing is the following: i was shown that realvideo streams can > > contain "annotations" that during playback send a ... Thanks for the comments -- i share most of them and knew beforehand the perplexities about this hack. I can only say that this is not a FreeBSD only/netscape only thing being very easy to customize for different browsers and port to other architectures (i guess there at UCL there were similar problems when developing vat or the relate interface for vic etc -- the point is try to add in features, and if they are successful people will hopefully use them). I am not 100% sure that passing URL's in RTCP fields is totally out of scope (will check). The main motivation for including this feature in vat (or some other tool) is that is is extremely unconvnient to run rtprecord/rtpdump for multiple sessions especially when one carries so little data. As for the web implications, that is in fact kind of an orthogonal problem which is better dealt with by a proper caching organization. We had the same problem when people would try to access teletext pages on the web during elections (at some pointwe had an internal server for them, but then the news spread out and we decided to continue doing that to see what kind of loads we would get in such events). Finally, vat&vic seem to be totally unprotected against attacks (or even errors) but yes, that is a problem. For what it matters, the code i put in is exactly the same that produces the name string to be put in the "session members list, so i do think that there is a check on the IP of the source, yes. thanks again luigi -----------------------------------+------------------------------------- Luigi RIZZO . EMAIL: luigi@iet.unipi.it . Dip. di Ing. dell'Informazione HTTP://www.iet.unipi.it/~luigi/ . Universita` di Pisa TEL/FAX: +39-050-568.533/522 . via Diotisalvi 2, 56126 PISA (Italy) -----------------------------------+------------------------------------- To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-multimedia" in the body of the message
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