Re: [rtcweb] Proposed Video Selection Process

Martin Thomson <martin.thomson@gmail.com> Fri, 22 November 2013 17:39 UTC

Return-Path: <martin.thomson@gmail.com>
X-Original-To: rtcweb@ietfa.amsl.com
Delivered-To: rtcweb@ietfa.amsl.com
Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 29CB41AE138 for <rtcweb@ietfa.amsl.com>; Fri, 22 Nov 2013 09:39:48 -0800 (PST)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -1.4
X-Spam-Level:
X-Spam-Status: No, score=-1.4 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, FREEMAIL_FROM=0.001, J_CHICKENPOX_18=0.6, SPF_PASS=-0.001] autolearn=no
Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 6xbtyKyinmEH for <rtcweb@ietfa.amsl.com>; Fri, 22 Nov 2013 09:39:47 -0800 (PST)
Received: from mail-wg0-x235.google.com (mail-wg0-x235.google.com [IPv6:2a00:1450:400c:c00::235]) by ietfa.amsl.com (Postfix) with ESMTP id E30341AE089 for <rtcweb@ietf.org>; Fri, 22 Nov 2013 09:39:46 -0800 (PST)
Received: by mail-wg0-f53.google.com with SMTP id b13so1491125wgh.32 for <rtcweb@ietf.org>; Fri, 22 Nov 2013 09:39:39 -0800 (PST)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; bh=Ijv4Sn2dWQhTdstcWp/WRGfiac6CJl9wtwTCUxG4GiQ=; b=n1rl0xKw7pKVIvUg2T30Hxc6Q3WooQCR2kjjmD41Ze8VBSwebP5h42+yFdU4fmjUxF DcTpZT1cQh1utcXa9gWqHmajLRhemp9ZjkQVtyMTiL0EgMtTENtGC/yqxMlXbT2TV2Lw MUSdNNG+6ZLSuE88LMbd5+K2+AIopzdoONE97NMnm/kBs+sLY0jChAtFglb9DnNnnI5w 79pwG8f8Pwe21/aC0EIFb5YmrsNUVVvoAytg4uFpVCbwCLJyZ4i3k6FAmOIruouDVMoM HZZu1jrMhrbnB5GBK5kSokdt/C6y3M0jScmR9BVEsNN6zq4MM2o3wwBJUtPTZzaEpv+M +KrQ==
MIME-Version: 1.0
X-Received: by 10.194.240.197 with SMTP id wc5mr11743416wjc.23.1385141979429; Fri, 22 Nov 2013 09:39:39 -0800 (PST)
Received: by 10.227.134.195 with HTTP; Fri, 22 Nov 2013 09:39:39 -0800 (PST)
In-Reply-To: <4D2FF0AC-74D6-4083-B8A0-15FE0B3C7911@phonefromhere.com>
References: <7949EED078736C4881C92F656DC6F6C130EA8AD7DD@ausmsex00.austin.kmvtechnologies.com> <528F30C1.8040208@it.aoyama.ac.jp> <CAHp8n2mYKgrpRDmC1h76X2CWYpOZcaKAxtjCS8fzcYpiYPwLnQ@mail.gmail.com> <4D2FF0AC-74D6-4083-B8A0-15FE0B3C7911@phonefromhere.com>
Date: Fri, 22 Nov 2013 09:39:39 -0800
Message-ID: <CABkgnnXH=zcgddtaDPV2sGBtnaH4HUdBmHK+53GeiEpbDVpOoQ@mail.gmail.com>
From: Martin Thomson <martin.thomson@gmail.com>
To: tim panton <tim@phonefromhere.com>
Content-Type: text/plain; charset=UTF-8
Cc: "rtcweb@ietf.org" <rtcweb@ietf.org>
Subject: Re: [rtcweb] Proposed Video Selection Process
X-BeenThere: rtcweb@ietf.org
X-Mailman-Version: 2.1.15
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: Fri, 22 Nov 2013 17:39:48 -0000

On 22 November 2013 08:40, tim panton <tim@phonefromhere.com>; wrote:
> Surely this flies in the face of the whole O/A model, which imposes a sort
> of symmetry on the endpoints ?
> (Unless there is some arcane SDP FRACK at play here).

a=sendonly, a=recvonly aren't arcane.  In fact, this is already
necessary for cases where encoding is done in a camera.