Your better bet would be to look into the RTSP standard - RFC 2326. Try: ftp://ftp.isi.edu/in-notes/rfc2326.txt or your favorite RFC repository. You can also download RTSP reference implementation source from: http://www.realnetworks.com/devzone/library/rtsp/reference.html?src=r-av,nos rc or look into OpenDivX Streaming SR-RTP 0.1a and the (IMHO) interesting 'Congestion Management and Interactions Between Layered Quality Adaptation' (I believe they call it) at http://nms.lcs.mit.edu/papers/videocm-pv2001.html Thier server listens for requests on an RTSP port, establishes session parameters via SDP, and streams requested data to the client via RTP over UDP (not great for most firewalls, if you don't have control over them, and not wonderful for security overall... I'm partial to http for that reason alone.) As for the time limitations suggested - I haven't seen them on my Windows development machine, but I have a TON of memory in that box. My laptop, on the otherhand, stops after 6mins. It has 256M and runs Win 2000 Pro. Could be a buffer is getting run over. MPJPEG will stream until I run out of RAM and drive space (Netscape believes it's downloading ONE HUGE temporary file.) One of the interesting things I've noted is that now that I can change the video size in ffserver, if I set it for 4CIF and Motion JPEG or Shockwave Streaming Format (effectively MPJPEG), I get streaming garbage (not to be confused with the 'Steaming Garbage' in the other room that I haven't taken out because I've been trying to get the ASF streaming working) rather than a complete MJPEG packet, suggesting a buffer isn't large enough... Something to investigate... --- Jodie -----Original Message----- From: video4linux-list-admin@xxxxxxxxxx [mailto:video4linux-list-admin@xxxxxxxxxx]On Behalf Of Michael Stearne Sent: Monday, April 16, 2001 10:45 PM To: video4linux-list@xxxxxxxxxx Subject: Re: Re: Video Size in ffserver RTSP is not proprietary to RealServer, RTSP (Real Time Streaming Protocol) is an open standard employed by most major streaming methods like QuickTime Streaming for example. ffserver should be able to use RTSP, you could view the source to the OpenSource QuickTime Streaming server at http://publicsource.apple.com/ and see how they implemented it. Michael On Monday, April 16, 2001, at 10:32 PM, Chris Kloiber wrote: > Tobias Gogolin wrote: >> >> Hi everybody >> >> I am doing some tests streaming in RealMedia format between my >> computers here and found an > interesting misbehaviour: Aparently >> after 2Minutes 46.6 Seconds every time the Stream ends > or the player >> just doesnt receive any more data (verfied with LinuxPPC and Win 98 >> (G2)) >> The slide bar seems even know ahead of time that thats how long its >> supposed to play >> So is that a feature programmed in to the server or where does it come >> from >> (there is no need to restart the server when it happens - just hitting >> stop and play again >> does it ...) > > I think it has to do with the fact that it's using http:// rather than > the normal streaming protocol (whatzit called? rtsp:// I think) that is > proprietary to RealServer. I think (guessing) that if you use http: > RealPlayer is thinking the file must NOT be a stream. I have gotten it > up to almost 9 minutes at low resolution/low framerate. > > Chris Kloiber > > > > _______________________________________________ > Video4linux-list mailing list > Video4linux-list@xxxxxxxxxx > https://listman.redhat.com/mailman/listinfo/video4linux-list _______________________________________________ Video4linux-list mailing list Video4linux-list@xxxxxxxxxx https://listman.redhat.com/mailman/listinfo/video4linux-list
