[rtcweb] Simulcast and layered video coding support in WebRTC

Gustavo Garcia <ggb@tokbox.com> Fri, 09 August 2013 19:52 UTC

Return-Path: <ggb@tokbox.com>
X-Original-To: rtcweb@ietfa.amsl.com
Delivered-To: rtcweb@ietfa.amsl.com
Received: from localhost (localhost []) by ietfa.amsl.com (Postfix) with ESMTP id 820B921F9D0F for <rtcweb@ietfa.amsl.com>; Fri, 9 Aug 2013 12:52:35 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -6.599
X-Spam-Status: No, score=-6.599 tagged_above=-999 required=5 tests=[BAYES_00=-2.599, RCVD_IN_DNSWL_MED=-4]
Received: from mail.ietf.org ([]) by localhost (ietfa.amsl.com []) (amavisd-new, port 10024) with ESMTP id dZwhMJmzpSxz for <rtcweb@ietfa.amsl.com>; Fri, 9 Aug 2013 12:52:23 -0700 (PDT)
Received: from na3sys010aog105.obsmtp.com (na3sys010aog105.obsmtp.com []) by ietfa.amsl.com (Postfix) with SMTP id 9CFA721F9CF2 for <rtcweb@ietf.org>; Fri, 9 Aug 2013 12:45:48 -0700 (PDT)
Received: from mail-we0-f170.google.com ([]) (using TLSv1) by na3sys010aob105.postini.com ([]) with SMTP ID DSNKUgVG60lsncEYmTusYDfJbm5S4q7Q1F+5@postini.com; Fri, 09 Aug 2013 12:45:48 PDT
Received: by mail-we0-f170.google.com with SMTP id w60so3931994wes.1 for <rtcweb@ietf.org>; Fri, 09 Aug 2013 12:45:46 -0700 (PDT)
X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20120113; h=x-gm-message-state:from:content-type:content-transfer-encoding :subject:date:references:to:message-id:mime-version; bh=5GnedOdrRatrKx5F0ZdHQ1bRluPQ3lDhhh0nNEJbspw=; b=Zr68rmZiLZPHB59Bjl/VbEsbPUmoBIBfdwrxuYeNUWEvaqWChfGwaLykjZ6NbbJN0G /rpjaigAO1W9DYznXpkmh/HvdE0tyEZwHsWYxbANE/WnE+jDBrXtNhN91sWmAGhAUeEV 0AscGFm2MKkBedb7/7jL1wIH0Rmq9PJZiMh3Fx/FEmGwcT3490HYK2Ve6KPWBWBFBdrw Q/SL/UoqWzjsPu9kOSnP+yLXGgPdkfaab2UWRJioN+Lxb+h40BESzUIDmepyXUpzhzhy YR/Z35NsphTSZdfG9lK2RmAYcs0ONSrkZp3ffGCbqAgfFiRKG+PJ3GYJ3eVadKt0ElNE 0ovw==
X-Gm-Message-State: ALoCoQl56xAhZcqrrmO4z2jY89XBSD6Oa+C+OsKzipK1YEGJT0C5iFHdMdqdmjJgkmzUFVvfLUQQXEmzLeAFB0in2OQ+ZDtnCfxgZ/oofg9T6jQs/wE318wBTCdcfF9AVVMfuK53Lz/84ceTPT0D/iI1RPOXiES4JQ==
X-Received: by with SMTP id d6mr1162867wiv.8.1376077546006; Fri, 09 Aug 2013 12:45:46 -0700 (PDT)
X-Received: by with SMTP id d6mr1162862wiv.8.1376077545931; Fri, 09 Aug 2013 12:45:45 -0700 (PDT)
Received: from [] (ginger.tokbox.com. []) by mx.google.com with ESMTPSA id n2sm4458510wiz.4.2013. for <rtcweb@ietf.org> (version=TLSv1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Fri, 09 Aug 2013 12:45:45 -0700 (PDT)
From: Gustavo Garcia <ggb@tokbox.com>
Content-Type: text/plain; charset="us-ascii"
Content-Transfer-Encoding: quoted-printable
Date: Fri, 09 Aug 2013 12:45:36 -0700
References: <20130805203754.22568.78278.idtracker@ietfa.amsl.com>
To: rtcweb@ietf.org
Message-Id: <59940FEC-D31A-4DE7-9F30-CD17EE71A429@tid.es>
Mime-Version: 1.0 (Apple Message framework v1283)
X-Mailer: Apple Mail (2.1283)
Subject: [rtcweb] Simulcast and layered video coding support in WebRTC
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: Fri, 09 Aug 2013 19:52:35 -0000

We have submitted this new draft explaining use cases and requirements for simulcast and layered video with VP8 in WebRTC.   Feedback or recommendations on how to proceed to move forward with these features are more than welcomed.

We tested existing temporal scalability capabilities with custom versions of Chrome some weeks ago and posted our experience to discuss-webrtc mailing list were more people showed interested on this feature in the context of multiconferencing solutions.


Begin forwarded message:

> From: <internet-drafts@ietf.org>
> Subject: I-D Action: draft-garcia-simulcast-and-layered-video-webrtc-00.txt
> Date: 5 de agosto de 2013 13:37:54 PDT
> To: <i-d-announce@ietf.org>
> Reply-To: <internet-drafts@ietf.org>
> A New Internet-Draft is available from the on-line Internet-Drafts directories.
> 	Title           : Simulcast and layered video coding support in WebRTC
> 	Author(s)       : Gustavo Garcia
> 	Filename        : draft-garcia-simulcast-and-layered-video-webrtc-00.txt
> 	Pages           : 8
> 	Date            : 2013-08-05
> Abstract:
>   This document describes the use cases and requirements for simulcast
>   and layered video coding support in WebRTC.  These techniques
>   simplify the implementation of video stream adaptation to different
>   participants in centralized conferencing solutions.  This document
>   also includes a proposal to expose these capabilities in the existing
>   PeerConnection API by defining new media constraint properties.
> The IETF datatracker status page for this draft is:
> https://datatracker.ietf.org/doc/draft-garcia-simulcast-and-layered-video-webrtc
> There's also a htmlized version available at:
> http://tools.ietf.org/html/draft-garcia-simulcast-and-layered-video-webrtc-00
> Please note that it may take a couple of minutes from the time of submission
> until the htmlized version and diff are available at tools.ietf.org.
> Internet-Drafts are also available by anonymous FTP at:
> ftp://ftp.ietf.org/internet-drafts/
> _______________________________________________
> I-D-Announce mailing list
> I-D-Announce@ietf.org
> https://www.ietf.org/mailman/listinfo/i-d-announce
> Internet-Draft directories: http://www.ietf.org/shadow.html
> or ftp://ftp.ietf.org/ietf/1shadow-sites.txt