Re: [MMUSIC] RTSP for data recorder design

[Magnus Westerlund <[e-mail]>]

On 2013-09-05 16:21, Saylor, Kase J. wrote:
> Let me try an example (if you don't mind) to see if I'm following this
> correctly:
> 
> We have a multicast message that get sent on our system (periodic data
> and event-based data) and we have defined the structure of the datagram.
> Let's call our defined datagram as FOO (sorry that I'm not being
> original here). For RTSP 1.0 (I cannot use 2.0 at this time) I would do
> the following?
> 
> transport-protocol  =    "IP"
> profile             =    "FOO"
> lower-transport     =    "UDP"
> 
> 
> 
>     C->S: SETUP rtsp://example.com/foo RTSP/1.0
>           CSeq: 302
>           Transport: IP/FOO/UDP;multicast;ttl=127;port=5200
> 
>     S->C: RTSP/1.0 200 OK
>           CSeq: 302
>           Date: 23 Jan 1997 15:35:06 GMT
>           Session: 47112344
>           Transport: IP/FOO/UDP;multicast;
>             ttl=127;port=5200
> 


The only think missing from the above is the IP address in an
destination parameter.

But, for the above instead of IP/FOO/UDP, it would rather be FOO/UDP. IP
is ommitted here. In RTSP 2.0 we allow a more flexible specification
with more than three levels if needed.

> 
> 
> You said something about registering parameters. Where/how would I do
> that? Thank you again for your time and help :-)

So for the above it would be basically be to register the transport
FOO/UDP. If you have no new parameters you don't need to register anything.

And for RTSP 1.0 there exist no registry for this parameters. Only the
most high level concept has been retrofitted with registries, i.e.
methods, headers, status codes and option tags.

If you are going this direction and you settle on a particular protocol
names and combinations. An email to this list about this at leas allows
us to know that you are using that combination. Possibly you would like
to register this for RTSP 2.0. The relevant registry has the policy of
specification required. See Section 22.13.1 of
draft-ietf-mmusic-rfc2326bis.

Cheers

Magnus Westerlund

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