Re: [codec] #18: Frame Sizes

Michael Knappe <mknappe@juniper.net> Wed, 12 May 2010 16:10 UTC

Return-Path: <mknappe@juniper.net>
X-Original-To: codec@core3.amsl.com
Delivered-To: codec@core3.amsl.com
Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 59DC628C32E for <codec@core3.amsl.com>; Wed, 12 May 2010 09:10:58 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -4.586
X-Spam-Level:
X-Spam-Status: No, score=-4.586 tagged_above=-999 required=5 tests=[AWL=-0.401, BAYES_40=-0.185, RCVD_IN_DNSWL_MED=-4]
Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id k8lZaOvzwFlb for <codec@core3.amsl.com>; Wed, 12 May 2010 09:10:56 -0700 (PDT)
Received: from exprod7og122.obsmtp.com (exprod7og122.obsmtp.com [64.18.2.22]) by core3.amsl.com (Postfix) with ESMTP id 8DD403A6D03 for <codec@ietf.org>; Wed, 12 May 2010 08:55:26 -0700 (PDT)
Received: from source ([66.129.224.36]) (using TLSv1) by exprod7ob122.postini.com ([64.18.6.12]) with SMTP ID DSNKS+rPYaJ9G6+QTzUXf6XcFxY9b0rBmA4W@postini.com; Wed, 12 May 2010 08:55:16 PDT
Received: from EMBX02-HQ.jnpr.net ([fe80::18fe:d666:b43e:f97e]) by P-EMHUB03-HQ.jnpr.net ([fe80::a124:1ab1:8e0b:f671%11]) with mapi; Wed, 12 May 2010 08:54:27 -0700
From: Michael Knappe <mknappe@juniper.net>
To: Mikael Abrahamsson <swmike@swm.pp.se>, "codec@ietf.org" <codec@ietf.org>
Date: Wed, 12 May 2010 08:54:24 -0700
Thread-Topic: [codec] #18: Frame Sizes
Thread-Index: Acrx6gKOYifXgAkTREOMXwtBnC0voAAAWH/n
Message-ID: <C8101D40.160A4%mknappe@juniper.net>
In-Reply-To: <alpine.DEB.1.10.1005121731340.28457@uplift.swm.pp.se>
Accept-Language: en-US
Content-Language: en-US
X-MS-Has-Attach:
X-MS-TNEF-Correlator:
user-agent: Microsoft-Entourage/13.3.0.091002
acceptlanguage: en-US
Content-Type: text/plain; charset="us-ascii"
Content-Transfer-Encoding: quoted-printable
MIME-Version: 1.0
Subject: Re: [codec] #18: Frame Sizes
X-BeenThere: codec@ietf.org
X-Mailman-Version: 2.1.9
Precedence: list
List-Id: Codec WG <codec.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/listinfo/codec>, <mailto:codec-request@ietf.org?subject=unsubscribe>
List-Archive: <http://www.ietf.org/mail-archive/web/codec>
List-Post: <mailto:codec@ietf.org>
List-Help: <mailto:codec-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/codec>, <mailto:codec-request@ietf.org?subject=subscribe>
X-List-Received-Date: Wed, 12 May 2010 16:10:59 -0000

Mikael,

Why would you need frame sizes approaching 250 ms? This would no longer be
supporting two-way communications in a human interactive sense.

Mike


On 5/12/10 8:34 AM, "Mikael Abrahamsson" <swmike@swm.pp.se> wrote:

> On Wed, 12 May 2010, Cullen Jennings wrote:
> 
>> Also, it seems that people working on maximizing efficient use of the
>> network might want size much long than 20 ms.
> 
> My blief is that the solution needs to support frame sizes ranging from
> 5ms up to somewhere around 100-250ms. It might be that internally it's
> actually only doing 5-20 ms and it's the transport that package it
> together so that the fps is way down, but I think it still needs to be
> taken into account when design is done.