Re: RTSP over HTTP Tunnel Port

• Subject: Re: RTSP over HTTP Tunnel Port
• From: "Greg J. Ogonowski" <email@hidden>
• Date: Sat, 26 Mar 2005 18:30:27 -0800
• Delivered-to: email@hidden
• Delivered-to: email@hidden

Joel-

e.g.:  rtsp://123.45.67.8:554/stream

It can be forced in RealPlayer and VLC in Preferences.

<SERVER>
        <!-- Port(s) for accepting client connections -->
        <!-- NOTE: Add port 80 to the list of "rtsp_port"'s -->
        <!-- if you are streaming across the internet -->
        <!-- and want clients behind firewalls to be -->
        <!-- able to connect to the streaming server -->
        <LIST-PREF NAME="rtsp_port" TYPE="UInt16">
                <VALUE>7070</VALUE>
        <VALUE>554</VALUE>
        <VALUE>8000</VALUE>
        <VALUE>8001</VALUE>
        </LIST-PREF>

-greg.

HTTP and UDP streaming use the same RTSP port.  So your server bound to
port 554 (or 7070, 80, 8000, 8001, whatever) for UDP streaming can also
serve HTTP clients.

HTTP tunneled streaming does have some benefits.  When a server is
overloaded and packet loss is affecting some client sessions as a
result, HTTP has been better about resending lost packets.  Of course,
you shouldn't ever let your server get overloaded in the first place.
Otherwise I don't think there is a big difference between UDP and HTTP
in terms of performance & reliability.

-Joel Hedden

On Mar 26, 2005, at 5:16 PM, Greg J. Ogonowski wrote:

I'm curious why you would want to do this?

The idea behind HTTP tunnel is to go through secure firewalls on the
standard HTTP port 80.  Doing anything else defeats this purpose.  If
you want to run on a different port, it is more efficient to run RTSP
since the stream overhead is lower than an HTTP tunnel.

Stream Efficiency in Order

1.  RTSP UDP
2.  RTSP TCP
3.  HTTP TCP

-greg.

At 16:47 2005-03-26, John C Ruff wrote:

Is it possible to change the tunnel port for RTSP over HTTP from the
default 80/tcp?  If so how?  Running DSS 5.0.1.1 on lInux.

Thanks
--
___________________
John Ruff
email@hidden

"No one can see past a choice they don't understand." --Oracle

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Greg J. Ogonowski
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__________________________________________________________________________
Greg J. Ogonowski
VP Product Development
ORBAN / CRL, Inc.
1525 Alvarado St.
San Leandro, CA  94577  USA
TEL +1 510 351-3500
FAX +1 510 351-0500
email@hidden
http://www.orban.com

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