Re: [MMUSIC] [rtcweb] Quick comments on draft-roach-rtcweb-glareless-add-00

Emil Ivov <emcho@jitsi.org> Tue, 14 May 2013 09:17 UTC

Return-Path: <emil@sip-communicator.org>
X-Original-To: mmusic@ietfa.amsl.com
Delivered-To: mmusic@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id B4EA721F8FF2 for <mmusic@ietfa.amsl.com>; Tue, 14 May 2013 02:17:17 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -2.374
X-Spam-Level:
X-Spam-Status: No, score=-2.374 tagged_above=-999 required=5 tests=[AWL=-0.075, BAYES_00=-2.599, MIME_8BIT_HEADER=0.3]
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 9mP-WLTN1O5O for <mmusic@ietfa.amsl.com>; Tue, 14 May 2013 02:17:17 -0700 (PDT)
Received: from mail-bk0-x22a.google.com (mail-bk0-x22a.google.com [IPv6:2a00:1450:4008:c01::22a]) by ietfa.amsl.com (Postfix) with ESMTP id AE4BE21F8FFC for <mmusic@ietf.org>; Tue, 14 May 2013 02:17:16 -0700 (PDT)
Received: by mail-bk0-f42.google.com with SMTP id na1so161644bkb.1 for <mmusic@ietf.org>; Tue, 14 May 2013 02:17:15 -0700 (PDT)
X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20120113; h=x-received:message-id:date:from:organization:user-agent :mime-version:to:cc:subject:references:in-reply-to:content-type :content-transfer-encoding:x-gm-message-state; bh=pWZoClTW+zwDJlOSioReaJv9gTI/+j4j8rp8e7VLXcI=; b=JJPLqPICHuO0ZfAyYFSxbnPqvh2xR8TS9wNy3UaNWTlIb3QBiLCfZ7Dwdb9ybsq59N 6qDD29nlayrju1pD192Smv70lKMBeSb2PO6zXTRMcJr2jp3jf8p4OeSbumWIE01nTMvI 41xDsBFNq5xWcDZJeC1V5XNy1H4p7PH6W+WVqlb4Xc4wZ/LvkuM/aaum2YuvIz9OmkHc Ya8L33A19P8WLv0O9uDz+lSGQ1Q3zG6Dsia9A4fd9LJ6Vrs0LawItBacr+Mj3RNuX9Nk 8LMeSUcWRk70sSXt9oVTIzsCtn9jhOrFx4lqLZWPrv/HRrf0WF8Ef54uS7wiCExYdjxS g0GQ==
X-Received: by 10.205.46.193 with SMTP id up1mr7222053bkb.65.1368523035503; Tue, 14 May 2013 02:17:15 -0700 (PDT)
Received: from [192.168.1.119] ([88.203.232.9]) by mx.google.com with ESMTPSA id tl1sm3292819bkb.7.2013.05.14.02.17.13 for <multiple recipients> (version=TLSv1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Tue, 14 May 2013 02:17:14 -0700 (PDT)
Message-ID: <5192011A.8030903@jitsi.org>
Date: Tue, 14 May 2013 12:17:14 +0300
From: Emil Ivov <emcho@jitsi.org>
Organization: Jitsi
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.8; rv:17.0) Gecko/20130328 Thunderbird/17.0.5
MIME-Version: 1.0
To: =?UTF-8?B?U3RlZmFuIEjDpWthbnNzb24gTEs=?= <stefan.lk.hakansson@ericsson.com>
References: <CA+9kkMDWy_Koq0Aun5A330O7OOMt9vimWPNe_uznAQdr0TSfow@mail.gmail.com> <51897B11.60004@nostrum.com> <518AB095.7010401@alum.mit.edu> <518AC143.2010006@nostrum.com> <1447FA0C20ED5147A1AA0EF02890A64B1C2C70B9@ESESSMB209.ericsson.se> <518D6482.2010008@alum.mit.edu> <1447FA0C20ED5147A1AA0EF02890A64B1C2C807D@ESESSMB209.ericsson.se> <518E70A9.7070007@alum.mit.edu> <1447FA0C20ED5147A1AA0EF02890A64B1C2CA23E@ESESSMB209.ericsson.se> <BLU405-EAS28962C7752B95767B7B2BED93A00@phx.gbl> <5191F4B8.2020602@ericsson.com>
In-Reply-To: <5191F4B8.2020602@ericsson.com>
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: quoted-printable
X-Gm-Message-State: ALoCoQl6Vq4DwTJU0zmflOXbfJvCviApsmGXK4Fx4xsJbn0CypqQ+hAcTErF9VpsChn01XWMamCB
Cc: "rtcweb@ietf.org" <rtcweb@ietf.org>, "mmusic@ietf.org" <mmusic@ietf.org>
Subject: Re: [MMUSIC] [rtcweb] Quick comments on draft-roach-rtcweb-glareless-add-00
X-BeenThere: mmusic@ietf.org
X-Mailman-Version: 2.1.12
Precedence: list
List-Id: Multiparty Multimedia Session Control Working Group <mmusic.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/mmusic>, <mailto:mmusic-request@ietf.org?subject=unsubscribe>
List-Archive: <http://www.ietf.org/mail-archive/web/mmusic>
List-Post: <mailto:mmusic@ietf.org>
List-Help: <mailto:mmusic-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/mmusic>, <mailto:mmusic-request@ietf.org?subject=subscribe>
X-List-Received-Date: Tue, 14 May 2013 09:17:17 -0000

On 14.05.13, 11:24, Stefan Håkansson LK wrote:
> On 2013-05-13 19:58, Bernard Aboba wrote:
>>
>>
>> On May 12, 2013, at 10:18, "Stefan Håkansson LK"
>> <stefan.lk.hakansson@ericsson.com> wrote:
>>
>>>> I would hope there will normally not be SDP changes for either of
>>>> those events.
>>>
>>> I would like to avoid them too, but I'm not sure how.
>>
>> [BA] It is probably not possible to avoid them in all cases, but we
>> can define RTCP functionality which along with some set of
>> functionality (e.g. Simulcast, layered coding) will minimize them.
>> This is worth doing (and soon).
> 
> I agree to this!

RTCP `certainly sounds a lot better than SDP O/A

Emil

-- 
https://jitsi.org