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Re: [rtcweb] Rejecting MediaStreamTracks in JSEP

Harald Alvestrand <hta@google.com> Thu, 13 February 2014 18:12 UTC

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From: Harald Alvestrand <hta@google.com>
Date: Thu, 13 Feb 2014 19:11:47 +0100
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To: Magnus Westerlund <magnus.westerlund@ericsson.com>
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Cc: Cullen Jennings <fluffy@cisco.com>, Jonathan Lennox <jonathan@vidyo.com>, "rtcweb@ietf.org" <rtcweb@ietf.org>, mmusic <mmusic@ietf.org>
Subject: Re: [rtcweb] Rejecting MediaStreamTracks in JSEP
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What's being asked for is a way to control MediaStreamTracks.

The RTP streams are only incidentally impacted.

I'll put a strawman proposal into -msid- today.


On Thu, Feb 13, 2014 at 10:05 AM, Magnus Westerlund <
magnus.westerlund@ericsson.com> wrote:

> On 2014-02-04 01:05, Justin Uberti wrote:
>
> >
> > Agree that msid should map m-line to MST, but it would seem recv-msid
> > could map RTP flow to m=line as well as indicate whether the receiver is
> > in fact interested in receiving the MST associated with said m= line.
> > Note that recv-msid doesn't specify an actual MSID; its purpose is to
> > indicate that the receiver wants to receive data from the remote side's
> > MST, and provide a mechanism for the sender to mark the data
> > accordingly. (Which ends up seeming a lot like appid.)
> >
>
> A question here, what are you really trying to reject?
>
> Is it the MST, a particular RTP Stream (Id by SSRC) or the usage of this
> media description (m= block)  in a particular direction (i.e. SDP
> internal)?
>
> I think the solution differs quite a lot depending on what you really
> try to accomplish.
>
> cheers
>
> Magnus Westerlund
>
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