Re: [rtcweb] SDP and ssrc-group,

Sergio Garcia Murillo <sergio.garcia.murillo@gmail.com> Thu, 23 October 2014 15:20 UTC

Return-Path: <sergio.garcia.murillo@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 0DCF51AC3EB for <rtcweb@ietfa.amsl.com>; Thu, 23 Oct 2014 08:20:40 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -2
X-Spam-Level:
X-Spam-Status: No, score=-2 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, SPF_PASS=-0.001] autolearn=ham
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 WjcOpIux-X3N for <rtcweb@ietfa.amsl.com>; Thu, 23 Oct 2014 08:20:38 -0700 (PDT)
Received: from mail-wg0-x232.google.com (mail-wg0-x232.google.com [IPv6:2a00:1450:400c:c00::232]) (using TLSv1 with cipher ECDHE-RSA-RC4-SHA (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 970CA1AC3E4 for <rtcweb@ietf.org>; Thu, 23 Oct 2014 08:20:38 -0700 (PDT)
Received: by mail-wg0-f50.google.com with SMTP id a1so1398110wgh.9 for <rtcweb@ietf.org>; Thu, 23 Oct 2014 08:20:37 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=message-id:date:from:user-agent:mime-version:to:subject:references :in-reply-to:content-type:content-transfer-encoding; bh=BenCQbj+XvyTgz3z0MRneI8uXjTj/BnExazxsH/ClIc=; b=tZIvmLSxoAABZy8tb+8nAcVS28XBN2yhKVDgVL/qfxpeofhX9hXG/9hWfuiF5gUDRQ N1sUU22YAVBraWl+IdA51/6m2m6G4qttG+rCVtuAn1LkxnFLuZUCXWzhHShYPiiHrlBV ydMjq2gtvvByshVLRD0/3JVOJsu4YrAs5b6DKQQ8Eeek5az1qrLwhh6txz1RYw4pNXuY QulbNr+ehGxD3zx8n5H94kzGsm0fwARLtNvXFqiz4SZq/F/6HRyE6BVC7rHXtW50UjNj G9t73d8zF8omAXwH98L60tS5t+7uAFpGmAAF/1o9/yWuZDVFIkF7HQiNIDahWlwxWq6L Yw6Q==
X-Received: by 10.180.100.106 with SMTP id ex10mr46438148wib.63.1414077637058; Thu, 23 Oct 2014 08:20:37 -0700 (PDT)
Received: from [192.168.1.37] (144.Red-83-43-188.dynamicIP.rima-tde.net. [83.43.188.144]) by mx.google.com with ESMTPSA id q10sm2484023wjq.35.2014.10.23.08.20.35 for <rtcweb@ietf.org> (version=TLSv1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Thu, 23 Oct 2014 08:20:36 -0700 (PDT)
Message-ID: <54491CCB.5090007@gmail.com>
Date: Thu, 23 Oct 2014 17:20:43 +0200
From: Sergio Garcia Murillo <sergio.garcia.murillo@gmail.com>
User-Agent: Mozilla/5.0 (Windows NT 6.3; WOW64; rv:24.0) Gecko/20100101 Thunderbird/24.6.0
MIME-Version: 1.0
To: rtcweb@ietf.org
References: <CALiegfmH8rRyEDbJjQ=kzMv0nGC=S9gNsE7roE=kqJyVcfgy8g@mail.gmail.com> <CAJrXDUHekuQCLeCYzsnm8AuTUgiVppQHUqR7MKdQ9Q=eFFAy0w@mail.gmail.com> <CALiegfm_B5KfD5SBPzsH4YYuzD2OXdu47TtatPVmd6ihrMCh1A@mail.gmail.com> <CAJrXDUF-AXcDuQmYhH91vbgPAxLkYkB==GY9opoRk7zrEP8A7A@mail.gmail.com> <CALiegfmxnzZ6_3rKX0paNhHas6Emvu1Mekgb9caj9NLVSf_u+g@mail.gmail.com> <5F93BF20-03B2-4D2D-BEFC-ED91250993BD@gmail.com> <54480864.4050106@gmail.com> <5448583B.5090109@mozilla.com>
In-Reply-To: <5448583B.5090109@mozilla.com>
Content-Type: text/plain; charset="ISO-8859-1"; format="flowed"
Content-Transfer-Encoding: 7bit
Archived-At: http://mailarchive.ietf.org/arch/msg/rtcweb/DjUmxDrtnOwG5Ty2-5bsGYkgN0E
Subject: Re: [rtcweb] SDP and ssrc-group,
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: Thu, 23 Oct 2014 15:20:40 -0000

On 23/10/2014 3:22, Timothy B. Terriberry wrote:
> Sergio Garcia Murillo wrote:
>> BTW, please, please, please, let's use the sssrc-group:FEC and send the
>> FEC in its own ssrc stream, so we don't have to use RED anymore..
>
> That may be fine for video, but the added header overhead for audio is 
> substantial (and there are a number of other problems that RED solves 
> there, as discussed at the last meeting).
>
Could you elaborate please?

Best regards
Sergio