streaming guru needed

[Danny Pansters]

On Wednesday 09 May 2007 21:03:35 Stefan Ehmann wrote:
> On Wednesday 09 May 2007 02:45:13 Julian Elischer wrote:
> > Julian Elischer wrote:
> > > So, to continue on the topic of my last email,
> > > I'll be webcasting from BSDCan and teh FreeBSD devsummit that is with
> > > it. however I'll be using my Mac because I've used it before
> > > and I don't have time to experiment.. (Hey it's BSD ok?)
> > >
> > > I'm currently (and often) broadcasting a test stream at
> > > rtsp://jello.ironport.com:80/Bsdtest.sdp
> > >
> > >
> > > I do have several questions.
> > >
> > > 1/ what is the best protocol/codec/etc.
> > >   I'm currently using mpeg-4 audio and video .. is that ok?
> > >    also for ease of coping with firewalls I'm using RTP over RTSP    (I
> > > think that's right) on port 80 though others might work....?
> > >
> > > 2/ does anyone know how to get mplayer to show this stuff?
> > >
> > > 3/ people have had success using VLC. does anyone have an
> > >   definative description of how to set it up to work?
> >
> >    I have been told to use:
> >     Preferences -> check Advanced, go to Input/Codecs->Demuxers->RTP/RTSP
> > and check "Use RTP over RTSP (TCP)"
>
> For mplayer "-rtsp-stream-over-tcp" seems to be the equivalent (It works
> for me at least).
>

Just for the record, you may already know this. (from long time ago when I had 
a more than healthy interest in RealVideo) Rtsp is preferably used over UDP 
(that is the A/V data) together with a control "channel" over TCP for the 
play/pause/feedback sort of things. So "rtsp over tcp" will be (very) 
suboptimal as there needs to be confirmation of every datagram. If it's also 
possible to send the a/v stream over UDP  and to play it you'd rather use 
that.

Dan