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Re: Spec question: Declaration of IceCandidate

From: Justin Uberti <juberti@google.com>
Date: Mon, 18 Jun 2012 15:20:38 -0400
Message-ID: <CAOJ7v-2ULWuseOWmZBGxsyAZCqoNRDAZYEgMR9dXxqJeK7EP7A@mail.gmail.com>
To: Cullen Jennings <fluffy@iii.ca>
Cc: public-webrtc@w3.org
On Mon, Jun 18, 2012 at 3:00 PM, Cullen Jennings <fluffy@iii.ca> wrote:

>
> On Jun 15, 2012, at 12:21 PM, Justin Uberti wrote:
>
> > a=mid: value that identifies a media block, this a=mid: value can be
> used as the content.name, and transport.pwd/transport.ufrag can be looked
> up from the a=ice-ufrag, and a=ice-pwd fields present in the corresponding
> SessionDescription media block. (A SessionDescription.mediaBlock(id) method
> would be very helpful here).
> >
> > Not all SessionDescriptions will have a=mid: lines, but those that don't
> will not be doing trickle candidates, so we don't need to worry about them
> (other than ensuring that implementations require a=mid: in
> setLocalDescription).
> >
> > Therefore, I suggest the following declaration of IceCandidate. I think
> it is useful for this to be an object as opposed to a dictionary, since in
> the future we could add accessors to get at all the various candidate
> fields (component, foundation, etc).
> >
> > [Constructor (DOMString mediaId, DOMString candidate)]
> > // e.g. ("audio", <a=candidate>)
> > [Constructor (DOMString json)]
> > // e.g. ("{ "mediaId": "audio", "candidate": <a=candidate> }")
> >
> >
> > interface IceCandidate {
> >
> >     attribute DOMString mediaId; // corresponds to a=mid:
> >
> >
> >     attribute DOMString
> >  candidate; // corresponds to a=candidate:
> >
> >
> >     stringifier
> >  DOMString (); // to JSON
> >
> >
> > };
> >
> >
>
>
> I could live with this, and I get your argument that things that do
> trickle can be required to do mid, but my preference would be to also allow
> the m line to be specified with a integer index where the value n indicated
> it referred to the n'th m-line in the SDP.
>
>
Are you suggesting we add another field, e.g.

attribute int mediaIndex;

to give the index of the m-line?

I think that would be fine too.
Received on Monday, 18 June 2012 19:21:28 UTC

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