All things related to multicast

[Marshall Eubanks <>]

Dear Alan, Joe;

   Yes, the encoder has to do nothing - however, the multicast should be sent
out using RTP, and unicast streams frequently are not. (Apple streaming server
sends out unicat with Quicktime wrappers, for example, which != RTP for 
MPEG-2.)

If the unicast is RTP, the rtptrans can easy change the IP address to the 
group
address.

If the unicast is not, I would suggest a vBrick or NCast unit - receive the
unicast and feed it into the box.

Ask the vendor if they support RTP - then it's just another stream with a 
Class D address.

Marshall


Alan Crosswell wrote:
> > Hi,
> >  
> >   We're talking to a vendor who can encode video into a high quality IP
> > MPEG-2 unicast stream (single box codec with Ethernet as the output).
> > Does anyone know of a commercial product that can take unicast streams
> > and convert them to multicast.  Their product do this costs quite a bit
> > and we're looking for alternatives.
> >
> > Thanks,
> > Joe
>
>
> You just make the destination IP address one in the multicast range.
> There's absolutely nothing the *encoder* has to do to do multicast.
> /a


--
                                 Regards
                                 Marshall Eubanks

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T.M. Eubanks
Multicast Technologies, Inc
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