Re: [rtcweb] Convey "label"
Stefan Håkansson LK <stefan.lk.hakansson@ericsson.com> Fri, 09 September 2011 13:11 UTC
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Date: Fri, 09 Sep 2011 15:13:43 +0200
From: Stefan Håkansson LK <stefan.lk.hakansson@ericsson.com>
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Subject: Re: [rtcweb] Convey "label"
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On 2011-09-09 14:58, Justin Uberti wrote: > > > On Fri, Sep 9, 2011 at 3:55 AM, Olle E. Johansson <oej@edvina.net > <mailto:oej@edvina.net>> wrote: > > > 9 sep 2011 kl. 09:07 skrev Colin Perkins: > > > On 9 Sep 2011, at 07:53, Olle E. Johansson wrote: > >> 9 sep 2011 kl. 08:51 skrev Stefan Håkansson LK: > >>> there was a discussion yesterday of how to convey the Id (aka > "label") of a MediaStream object when it is sent over a > PeerConnection. Presumable this info would be in the SDP offer (or > whatever we end up using). There was a discussion on if CNAME could > be used or if we need something new. > >>> > >>> You mentioned that it would be quite easy to add a new element > or attribute if we would need that. Could you explain a bit more? > >> > >> Just a kind reminder that there are application specific fields > that we can use in RTCP too... > > > > > > I was actually thinking of a new RTCP SDES item type to convey > the label. > > > Side note: I know we're not talking SIP, but it actually touches > Hadriel's Session ID proposal too... > > > It's not clear to me that we need a MediaStream to have a label, or any > identifier other than CNAME, unless it's meant to be some sort of > "display name" for that particular stream. If there are other expected > usages of the label, I'd be interested to know what they are. The main purpose of an identifier of MediaStream's I see is to be able to reference them after transport over a PeerConnection. If several MediaStreams are sent over a PC, you need to be able to reference them - all the receiving app gets is "addstream" events. Of course you could add them one by one in a determined order, but that would mean that set up takes longer than required. I'm not sure CNAME can fulfill this purpose in all cases or not.
- Re: [rtcweb] Convey "label" Olle E. Johansson
- Re: [rtcweb] Convey "label" Justin Uberti
- Re: [rtcweb] Convey "label" Stefan Håkansson LK
- Re: [rtcweb] Convey "label" Colin Perkins
- [rtcweb] Convey "label" Stefan Håkansson LK
- Re: [rtcweb] Convey "label" Olle E. Johansson
- Re: [rtcweb] Convey "label" Colin Perkins
- Re: [rtcweb] Convey "label" Stefan Håkansson LK
- Re: [rtcweb] Convey "label" Justin Uberti
- Re: [rtcweb] Convey "label" Stefan Håkansson LK