Re: [rmcat] Generic RTCP feedback message AGAIN

[Stefan Holmer <[e-mail]>]

On Mon, Nov 16, 2015 at 4:51 AM Karen Elisabeth Egede Nielsen <
[e-mail]> wrote:

> HI,
>
> At the 2nd RMCAT session we proposed the following:
>
> * Give usage of a common feedback message for sender side only RMCAT CC's
> _a try_.
>
> With the following proposed way forward
>
> *1* Requirements to be considered in each CC algs draft
> *2* Analyse required feedback rates and timing as well as content
>    and point to existing remedies and/or what new needed
>
> At the RMCAT session agreement on this not established.
> Only *1* was agreed upon.  Whereas *2* was left for future potentially.
>
> NOW given the recent discussion on the list it looks (to me) as
> if we in the wg have a more mature view on this task.
> Note the wg already has a milestone to which this work
> can be associated. I.e., "Submit RTCP extension requirements
> for use with congestion control algorithms to AVTCORE (if needed)".
> Please respond to this email and give your view:
>
> Shall we NOW give the usage of a common feedback message
> for a sender side only CC a try ?
> [Yes I want to be part of this - OR -  No I don't want to be part of this]
>

Yes - I want to be part of this. :)


>
> Assuming Yes. How shall we collect the requirements ?
> Possible options (I can think of):
>
> * have new updates of the CCs alg candidates (incl. SBD, coupled CC as
> applicable)
>    come soon with a good specification of the requested
> * have the same information instead go into a (potentially temporary?)
>     Appendix of draft-perkins-rmcat-rtp-cc-feedback-01.txt or new draft ?
> * others - email ?
>

I vote for either updating the current CC algorithm candidate drafts with
this information, or doing it over e-mail as a first step while we wait for
the updated drafts.


>
> Assuming Yes. Where shall the outcome of the work be specified ?
> draft-perkins-rmcat-rtp-cc-feedback-01.txt or new draft
>

No strong opinion about this.


>
>
> BR,
> Karen, on behalf of the chairs
>
> > -----Original Message-----
> > From: Karen Elisabeth Egede Nielsen [mailto:[e-mail]]
> > Sent: 3. november 2015 01:29
> > To: '[e-mail]' <[e-mail]>
> > Subject: Generic RTCP feedback message
> >
> > Hi,
> >
> > Following Stefan’s presentation in the RMCAT session yesterday there was
> > agreement at the mike that we in the RMCAT wg should try to give the
> usage
> > of a generic common feedback message a try.
> >
> > It seems a prerequisite for this that the receiver (sender of the
> feedback
> > message) is (in principle) unaware of the particular CC algorithm that
> the
> > sender is using, but will generate a *to be defined* set of  feedback
> > information in a *to be defined* form that will fulfil the requirements
> of all
> > RMCAT CC algorithms.
> >
> > In order to start on this task we hereby solicit for the people working
> with CC
> > algorithms to respond to this email with information on the requirements
> > that they have to such a generic feedback mechanism.
> >
> > In addition _or alternatively_   please (all) provide feedback on
> > * how you think we should proceed with this task, e.g., start a new
> draft to
> > collect this information (eventually to proceed in an ART wg)
> > * concerns with this approach
> >
> > We will try to collect the information provided and have a short follow
> up in
> > Fridays RMCAT meeting.
> >
> > BR, Mirja/Karen
> >
> >
> >
> >
> >
> >
>
>