Re: [rtcweb] Proposal for a JS API for NoPlan (adding multiple sources without encoding them in SDP)

Silvia Pfeiffer <silviapfeiffer1@gmail.com> Tue, 18 June 2013 06:25 UTC

Return-Path: <silviapfeiffer1@gmail.com>
X-Original-To: rtcweb@ietfa.amsl.com
Delivered-To: rtcweb@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id EEF1F21F9CB8 for <rtcweb@ietfa.amsl.com>; Mon, 17 Jun 2013 23:25:26 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -2.6
X-Spam-Level:
X-Spam-Status: No, score=-2.6 tagged_above=-999 required=5 tests=[AWL=0.000, BAYES_00=-2.599, NO_RELAYS=-0.001]
Received: from mail.ietf.org ([12.22.58.30]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id Vps+yk6QwfhJ for <rtcweb@ietfa.amsl.com>; Mon, 17 Jun 2013 23:25:26 -0700 (PDT)
Received: from mail-ob0-x232.google.com (mail-ob0-x232.google.com [IPv6:2607:f8b0:4003:c01::232]) by ietfa.amsl.com (Postfix) with ESMTP id 7735F21F9CB7 for <rtcweb@ietf.org>; Mon, 17 Jun 2013 23:25:26 -0700 (PDT)
Received: by mail-ob0-f178.google.com with SMTP id fb19so4155571obc.37 for <rtcweb@ietf.org>; Mon, 17 Jun 2013 23:25:26 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:from:date:message-id:subject:to :cc:content-type; bh=zH/XXsh9Np8Qq0nIDlVrKmcazgHy8RmNFYxzhBZWWVs=; b=FNrCPrkJ70Jprqo6AT4CcdR0qZEwUOoO5FXDGSbSYSarOQ/M4YkNBczpxZjn1SBm7i PrKxIgGVl/l65WTIZq1Cwhd4Y6RG/wZgl3xWmMO1HdlESdqroQ58ci28lvpjpMOu6yxo aUQdSfjQsX/XOwymMYZqFjqQ4d3bTLjaFSie1xILa0hGtD+Bp2uBSsNgYt51StL415EG l55geuXIB5k1YKlITTUlRlAEmlFcx3GeyPvxNilpf6/IQcBVUEnI1I3O4WV1iHHsA6U2 pyRJTpnxgImT+Gkek9OfESeYORv5XcZOxamJjEhgps7mYn1woOQqoaHeJes2qKmk+Bva H/5g==
X-Received: by 10.60.94.113 with SMTP id db17mr11081496oeb.62.1371536726053; Mon, 17 Jun 2013 23:25:26 -0700 (PDT)
MIME-Version: 1.0
Received: by 10.76.116.71 with HTTP; Mon, 17 Jun 2013 23:25:05 -0700 (PDT)
In-Reply-To: <51BFFB65.2020203@jitsi.org>
References: <CAJrXDUHdoxLTsofiwLBdwBNnCCkCBgjSdbmLaXrNEPODMrsSVA@mail.gmail.com> <CAHp8n2m4VwkpbdGE+q73qqij5RDCB4Vb-Ui1LmGSx1zmv8TX2g@mail.gmail.com> <51BFFB65.2020203@jitsi.org>
From: Silvia Pfeiffer <silviapfeiffer1@gmail.com>
Date: Tue, 18 Jun 2013 16:25:05 +1000
Message-ID: <CAHp8n2mD55CL5sVcSyvqNz_nzqtrwcfEXy_dU23wXGcV0PhR8A@mail.gmail.com>
To: Emil Ivov <emcho@jitsi.org>
Content-Type: text/plain; charset="ISO-8859-1"
Cc: "<rtcweb@ietf.org>" <rtcweb@ietf.org>
Subject: Re: [rtcweb] Proposal for a JS API for NoPlan (adding multiple sources without encoding them in SDP)
X-BeenThere: rtcweb@ietf.org
X-Mailman-Version: 2.1.12
Precedence: list
List-Id: Real-Time Communication in WEB-browsers working group list <rtcweb.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/rtcweb>, <mailto:rtcweb-request@ietf.org?subject=unsubscribe>
List-Archive: <http://www.ietf.org/mail-archive/web/rtcweb>
List-Post: <mailto:rtcweb@ietf.org>
List-Help: <mailto:rtcweb-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/rtcweb>, <mailto:rtcweb-request@ietf.org?subject=subscribe>
X-List-Received-Date: Tue, 18 Jun 2013 06:25:27 -0000

On Tue, Jun 18, 2013 at 4:17 PM, Emil Ivov <emcho@jitsi.org> wrote:
> Hey Silvia,
>
>
> On 18.06.13, 03:00, Silvia Pfeiffer wrote:
>>
>> What I would like to see, though, is a bit different from what you've
>> proposed. In particular, the MediaFlowDescription object is the one
>> object that I believe is supposed to enable JS developers to  do "SDP
>> hacking" without having to understand SDP. Unfortunately, the way in
>> which it is currently written, this API doesn't help a JS developer
>> much. There are properties in that object like "ssrc" that mean
>> nothing unless you understand SDP.
>
>
> SSRC is really just a flow identifier and it actually comes from RTP, not
> SDP.

OK, could we call it rtpflowId or mediaflowId or peerflowId or
something? And what exactly are the other identifiers?
(You will notice that I am really naive wrt SDP, sorry!)

Thanks,
Silvia.