Re: [AVT] Working group last call: draft-ietf-avt-rtp-ac3-06.txt

Magnus Westerlund <magnus.westerlund@ericsson.com> Thu, 23 June 2005 09:37 UTC

Received: from localhost.localdomain ([127.0.0.1] helo=megatron.ietf.org) by megatron.ietf.org with esmtp (Exim 4.32) id 1DlO8s-0005ZE-JD; Thu, 23 Jun 2005 05:37:02 -0400
Received: from odin.ietf.org ([132.151.1.176] helo=ietf.org) by megatron.ietf.org with esmtp (Exim 4.32) id 1DlO8q-0005Z9-HU for avt@megatron.ietf.org; Thu, 23 Jun 2005 05:37:00 -0400
Received: from ietf-mx.ietf.org (ietf-mx [132.151.6.1]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id FAA20757 for <avt@ietf.org>; Thu, 23 Jun 2005 05:36:58 -0400 (EDT)
Received: from mailgw4.ericsson.se ([193.180.251.62]) by ietf-mx.ietf.org with esmtp (Exim 4.33) id 1DlOX6-0001cx-1a for avt@ietf.org; Thu, 23 Jun 2005 06:02:07 -0400
Received: from esealmw128.eemea.ericsson.se (unknown [153.88.254.121]) by mailgw4.ericsson.se (Symantec Mail Security) with ESMTP id D46C512E8; Thu, 23 Jun 2005 11:36:45 +0200 (CEST)
Received: from esealmw126.eemea.ericsson.se ([153.88.254.170]) by esealmw128.eemea.ericsson.se with Microsoft SMTPSVC(6.0.3790.211); Thu, 23 Jun 2005 11:36:44 +0200
Received: from [147.214.34.71] ([147.214.34.71]) by esealmw126.eemea.ericsson.se with Microsoft SMTPSVC(6.0.3790.211); Thu, 23 Jun 2005 11:36:44 +0200
Message-ID: <42BA82AC.3070005@ericsson.com>
Date: Thu, 23 Jun 2005 11:36:44 +0200
From: Magnus Westerlund <magnus.westerlund@ericsson.com>
User-Agent: Mozilla Thunderbird 1.0.2 (Windows/20050317)
X-Accept-Language: en-us, en
MIME-Version: 1.0
To: Colin Perkins <csp@csperkins.org>
Subject: Re: [AVT] Working group last call: draft-ietf-avt-rtp-ac3-06.txt
References: <200506081948.PAA00433@ietf.org> <9DF07705-0C91-45B6-B9E1-F84BE6DFB1A2@csperkins.org>
In-Reply-To: <9DF07705-0C91-45B6-B9E1-F84BE6DFB1A2@csperkins.org>
Content-Type: text/plain; charset="ISO-8859-1"; format="flowed"
Content-Transfer-Encoding: 7bit
X-OriginalArrivalTime: 23 Jun 2005 09:36:44.0603 (UTC) FILETIME=[118CA0B0:01C577D7]
X-Brightmail-Tracker: AAAAAA==
X-Spam-Score: 0.0 (/)
X-Scan-Signature: 52f7a77164458f8c7b36b66787c853da
Content-Transfer-Encoding: 7bit
Cc: IETF AVT WG <avt@ietf.org>
X-BeenThere: avt@ietf.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: Audio/Video Transport Working Group <avt.ietf.org>
List-Unsubscribe: <https://www1.ietf.org/mailman/listinfo/avt>, <mailto:avt-request@ietf.org?subject=unsubscribe>
List-Post: <mailto:avt@ietf.org>
List-Help: <mailto:avt-request@ietf.org?subject=help>
List-Subscribe: <https://www1.ietf.org/mailman/listinfo/avt>, <mailto:avt-request@ietf.org?subject=subscribe>
Sender: avt-bounces@ietf.org
Errors-To: avt-bounces@ietf.org

Hi,

I noticed a minor error in the draft when reading it. I support 
publication of the draft. However we should fix the example in section 
5.2. The AC-3 payload format has no parameters to be transported in 
a=fmtp and the mapping description correctly omits talking about using 
a=fmtp. However the example contains an a=fmtp line that is empty. 
Please remove in an update after the WG LC has ended.

Cheers

Magnus

Colin Perkins wrote:
> This is to announce a working group last call on the RTP Payload  Format 
> for AC-3 Audio (draft-ietf-avt-rtp-ac3-06.txt). Please send  any final 
> comments on this draft to the mailing list before 24th June  2005. If no 
> substantive technical issues are raised by that time, we  will request 
> the IESG publish this draft as a proposed standard RFC.
> 
> Colin
> 
> 
> 
> 
> On 8 Jun 2005, at 20:48, Internet-Drafts@ietf.org wrote:
> 
>> A New Internet-Draft is available from the on-line Internet-Drafts  
>> directories.
>> This draft is a work item of the Audio/Video Transport Working  Group 
>> of the IETF.
>>
>>     Title        : RTP Payload Format for AC-3 Audio
>>     Author(s)    : J. Flaks, et al.
>>     Filename    : draft-ietf-avt-rtp-ac3-06.txt
>>     Pages        : 11
>>     Date        : 2005-6-8
>>
>> This document describes an RTP payload format for transporting AC-3
>> encoded audio data.  AC-3 is a high quality, multichannel audio coding
>> system used in US HDTV, DVD, cable and satellite television and other
>> media.  The RTP payload format as presented in this document includes
>> support for data fragmentation.
>>
>> A URL for this Internet-Draft is:
>> http://www.ietf.org/internet-drafts/draft-ietf-avt-rtp-ac3-06.txt
> 
> 
> 
> _______________________________________________
> Audio/Video Transport Working Group
> avt@ietf.org
> https://www1.ietf.org/mailman/listinfo/avt
> 


-- 

Magnus Westerlund

Multimedia Technologies, Ericsson Research EAB/TVA/A
----------------------------------------------------------------------
Ericsson AB                | Phone +46 8 4048287
Torshamsgatan 23           | Fax   +46 8 7575550
S-164 80 Stockholm, Sweden | mailto: magnus.westerlund@ericsson.com

_______________________________________________
Audio/Video Transport Working Group
avt@ietf.org
https://www1.ietf.org/mailman/listinfo/avt