From nobody Fri Oct 5 16:50:07 2018 Return-Path: X-Original-To: payload@ietfa.amsl.com Delivered-To: payload@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 99CCD12D7EA; Fri, 5 Oct 2018 16:49:56 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -4.2 X-Spam-Level: X-Spam-Status: No, score=-4.2 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, RCVD_IN_DNSWL_MED=-2.3, SPF_PASS=-0.001, URIBL_BLOCKED=0.001] autolearn=ham autolearn_force=no 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 NxWtSCzrVllP; Fri, 5 Oct 2018 16:49:54 -0700 (PDT) Received: from rfc-editor.org (rfc-editor.org [4.31.198.49]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id E1879129C6B; Fri, 5 Oct 2018 16:49:54 -0700 (PDT) Received: by rfc-editor.org (Postfix, from userid 30) id DA2CCB80050; Fri, 5 Oct 2018 16:49:42 -0700 (PDT) To: ietf-announce@ietf.org, rfc-dist@rfc-editor.org X-PHP-Originating-Script: 1005:ams_util_lib.php From: rfc-editor@rfc-editor.org Cc: rfc-editor@rfc-editor.org, drafts-update-ref@iana.org, payload@ietf.org Content-type: text/plain; charset=UTF-8 Message-Id: <20181005234942.DA2CCB80050@rfc-editor.org> Date: Fri, 5 Oct 2018 16:49:42 -0700 (PDT) Archived-At: Subject: [payload] =?utf-8?q?RFC_8450_on_RTP_Payload_Format_for_VC-2_High?= =?utf-8?q?_Quality_=28HQ=29_Profile?= X-BeenThere: payload@ietf.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Audio/Video Transport Payloads working group discussion list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 05 Oct 2018 23:49:57 -0000 A new Request for Comments is now available in online RFC libraries. RFC 8450 Title: RTP Payload Format for VC-2 High Quality (HQ) Profile Author: J. Weaver Status: Standards Track Stream: IETF Date: October 2018 Mailbox: james.barrett@bbc.co.uk Pages: 24 Characters: 51777 Updates/Obsoletes/SeeAlso: None I-D Tag: draft-ietf-payload-rtp-vc2hq-08.txt URL: https://www.rfc-editor.org/info/rfc8450 DOI: 10.17487/RFC8450 This memo describes an RTP payload format for the High Quality (HQ) profile of Society of Motion Picture and Television Engineers Standard ST 2042-1, known as VC-2. This document describes the transport of HQ Profile VC-2 in RTP packets and has applications for low-complexity, high-bandwidth streaming of both lossless and lossy compressed video. The HQ profile of VC-2 is intended for low-latency video compression (with latency potentially on the order of lines of video) at high data rates (with compression ratios on the order of 2:1 or 4:1). This document is a product of the Audio/Video Transport Payloads Working Group of the IETF. This is now a Proposed Standard. STANDARDS TRACK: This document specifies an Internet Standards Track protocol for the Internet community, and requests discussion and suggestions for improvements. Please refer to the current edition of the Official Internet Protocol Standards (https://www.rfc-editor.org/standards) for the standardization state and status of this protocol. Distribution of this memo is unlimited. This announcement is sent to the IETF-Announce and rfc-dist lists. To subscribe or unsubscribe, see https://www.ietf.org/mailman/listinfo/ietf-announce https://mailman.rfc-editor.org/mailman/listinfo/rfc-dist For searching the RFC series, see https://www.rfc-editor.org/search For downloading RFCs, see https://www.rfc-editor.org/retrieve/bulk Requests for special distribution should be addressed to either the author of the RFC in question, or to rfc-editor@rfc-editor.org. Unless specifically noted otherwise on the RFC itself, all RFCs are for unlimited distribution. The RFC Editor Team Association Management Solutions, LLC From nobody Mon Oct 8 22:32:13 2018 Return-Path: X-Original-To: payload@ietfa.amsl.com Delivered-To: payload@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 7CCE5131156; Mon, 8 Oct 2018 22:32:11 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -2.6 X-Spam-Level: X-Spam-Status: No, score=-2.6 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_LOW=-0.7, SPF_PASS=-0.001] autolearn=ham autolearn_force=no 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 s8wTKP88QXCz; Mon, 8 Oct 2018 22:32:09 -0700 (PDT) Received: from huawei.com (lhrrgout.huawei.com [185.176.76.210]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 919AB13101B; Mon, 8 Oct 2018 22:32:09 -0700 (PDT) Received: from lhreml709-cah.china.huawei.com (unknown [172.18.7.106]) by Forcepoint Email with ESMTP id 737D32B9A3F02; Tue, 9 Oct 2018 06:32:04 +0100 (IST) Received: from DGGEMM405-HUB.china.huawei.com (10.3.20.213) by lhreml709-cah.china.huawei.com (10.201.108.32) with Microsoft SMTP Server (TLS) id 14.3.399.0; Tue, 9 Oct 2018 06:32:06 +0100 Received: from DGGEMM526-MBX.china.huawei.com ([169.254.8.153]) by DGGEMM405-HUB.china.huawei.com ([10.3.20.213]) with mapi id 14.03.0399.000; Tue, 9 Oct 2018 13:32:03 +0800 From: "Roni Even (A)" To: "draft-ietf-payload-tetra@ietf.org" CC: "payload@ietf.org" Thread-Topic: Update on draft-ietf-payload-tetra-00 Thread-Index: AdRfkT6bZzvV+J0ZSAWkCFbQx2GniQ== Date: Tue, 9 Oct 2018 05:32:03 +0000 Message-ID: <6E58094ECC8D8344914996DAD28F1CCD8E3F11@dggemm526-mbx.china.huawei.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [10.200.202.226] Content-Type: multipart/alternative; boundary="_000_6E58094ECC8D8344914996DAD28F1CCD8E3F11dggemm526mbxchina_" MIME-Version: 1.0 X-CFilter-Loop: Reflected Archived-At: Subject: [payload] Update on draft-ietf-payload-tetra-00 X-BeenThere: payload@ietf.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Audio/Video Transport Payloads working group discussion list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 09 Oct 2018 05:32:12 -0000 --_000_6E58094ECC8D8344914996DAD28F1CCD8E3F11dggemm526mbxchina_ Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Hi guys, The WGLC finished a couple of month ago. Do you have any plans to update th= e document accordingly. Thanks Roni Even Payload WG co-chair --_000_6E58094ECC8D8344914996DAD28F1CCD8E3F11dggemm526mbxchina_ Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

Hi guys,

The WGLC finished a couple of month ago. Do you have= any plans to update the document accordingly.

Thanks

Roni Even

Payload WG co-chair

--_000_6E58094ECC8D8344914996DAD28F1CCD8E3F11dggemm526mbxchina_-- From nobody Mon Oct 8 22:35:10 2018 Return-Path: X-Original-To: payload@ietfa.amsl.com Delivered-To: payload@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id CD6A3131156; Mon, 8 Oct 2018 22:35:08 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -2.6 X-Spam-Level: X-Spam-Status: No, score=-2.6 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_LOW=-0.7, SPF_PASS=-0.001] autolearn=ham autolearn_force=no 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 yHu35tYDkNbP; Mon, 8 Oct 2018 22:35:06 -0700 (PDT) Received: from huawei.com (lhrrgout.huawei.com [185.176.76.210]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id DBCA1131166; Mon, 8 Oct 2018 22:35:05 -0700 (PDT) Received: from lhreml709-cah.china.huawei.com (unknown [172.18.7.106]) by Forcepoint Email with ESMTP id 54B778FDA9BDD; Tue, 9 Oct 2018 06:35:02 +0100 (IST) Received: from DGGEMM423-HUB.china.huawei.com (10.1.198.40) by lhreml709-cah.china.huawei.com (10.201.108.32) with Microsoft SMTP Server (TLS) id 14.3.399.0; Tue, 9 Oct 2018 06:35:03 +0100 Received: from DGGEMM526-MBX.china.huawei.com ([169.254.8.153]) by dggemm423-hub.china.huawei.com ([10.1.198.40]) with mapi id 14.03.0399.000; Tue, 9 Oct 2018 13:35:00 +0800 From: "Roni Even (A)" To: "draft-ietf-payload-flexible-fec-scheme@ietf.org" CC: "payload@ietf.org" Thread-Topic: update draft-ietf-payload-flexible-fec-scheme-08 Thread-Index: AdRfkZb04IS2a5dATj+kMfbYRfHWFg== Date: Tue, 9 Oct 2018 05:34:59 +0000 Message-ID: <6E58094ECC8D8344914996DAD28F1CCD8E3F37@dggemm526-mbx.china.huawei.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [10.200.202.226] Content-Type: multipart/alternative; boundary="_000_6E58094ECC8D8344914996DAD28F1CCD8E3F37dggemm526mbxchina_" MIME-Version: 1.0 X-CFilter-Loop: Reflected Archived-At: Subject: [payload] update draft-ietf-payload-flexible-fec-scheme-08 X-BeenThere: payload@ietf.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Audio/Video Transport Payloads working group discussion list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 09 Oct 2018 05:35:09 -0000 --_000_6E58094ECC8D8344914996DAD28F1CCD8E3F37dggemm526mbxchina_ Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Hi, Magnus did a good review of the -08 draft as part of the 2nd WGLC Can you please respond and update the document. This is required for RTCweb Thanks Roni Even Payload WG co-chair --_000_6E58094ECC8D8344914996DAD28F1CCD8E3F37dggemm526mbxchina_ Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

Hi,

Magnus did a good review of the -08 draft as part of= the 2nd WGLC

Can you please respond and update the document.

This is required for RTCweb

 

Thanks

Roni Even

Payload WG co-chair

 

--_000_6E58094ECC8D8344914996DAD28F1CCD8E3F37dggemm526mbxchina_-- From nobody Mon Oct 8 22:56:55 2018 Return-Path: X-Original-To: payload@ietfa.amsl.com Delivered-To: payload@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 9EFC813118E; Mon, 8 Oct 2018 22:56:53 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -4.199 X-Spam-Level: X-Spam-Status: No, score=-4.199 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_MED=-2.3, SPF_PASS=-0.001, URIBL_BLOCKED=0.001] autolearn=ham autolearn_force=no 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 KhUwN1V2VEeu; Mon, 8 Oct 2018 22:56:51 -0700 (PDT) Received: from mail2.frequentis.com (mail2.frequentis.com [195.20.158.51]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 7747A131167; Mon, 8 Oct 2018 22:56:47 -0700 (PDT) X-IronPort-AV: E=Sophos;i="5.54,359,1534802400"; d="scan'208,217";a="3103298" Received: from frqat01nt72.frequentis.frq ([172.16.1.72]) by mail2.frequentis.com with ESMTP; 09 Oct 2018 07:56:45 +0200 Received: from FRQAT01NT72.frequentis.frq (172.16.1.72) by FRQAT01NT72.frequentis.frq (172.16.1.72) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.1531.3; Tue, 9 Oct 2018 07:56:45 +0200 Received: from FRQAT01NT72.frequentis.frq ([172.16.1.72]) by FRQAT01NT72.frequentis.frq ([172.16.1.72]) with mapi id 15.01.1531.003; Tue, 9 Oct 2018 07:56:45 +0200 From: REISENBAUER Andreas To: "Roni Even (A)" , "draft-ietf-payload-tetra@ietf.org" CC: "payload@ietf.org" Thread-Topic: Update on draft-ietf-payload-tetra-00 Thread-Index: AdRfkT6bZzvV+J0ZSAWkCFbQx2GniQAA1j4A Date: Tue, 9 Oct 2018 05:56:45 +0000 Message-ID: <2a9a01ef9f824d20808106e334f6fdf4@frequentis.com> References: <6E58094ECC8D8344914996DAD28F1CCD8E3F11@dggemm526-mbx.china.huawei.com> In-Reply-To: <6E58094ECC8D8344914996DAD28F1CCD8E3F11@dggemm526-mbx.china.huawei.com> Accept-Language: de-AT, de-DE, en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [172.16.1.245] Content-Type: multipart/alternative; boundary="_000_2a9a01ef9f824d20808106e334f6fdf4frequentiscom_" MIME-Version: 1.0 Archived-At: Subject: Re: [payload] Update on draft-ietf-payload-tetra-00 X-BeenThere: payload@ietf.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Audio/Video Transport Payloads working group discussion list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 09 Oct 2018 05:56:54 -0000 --_000_2a9a01ef9f824d20808106e334f6fdf4frequentiscom_ Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Hi Roni, So sorry not responding in acceptable interval - was sooo busy with other s= tuff. Yes - I want to incorporate comments and improve the document accordingly -= I plan to work on it in October to have a new draft ready by end of this m= onth Br Andreas From: Roni Even (A) [mailto:roni.even@huawei.com] Sent: Dienstag, 09. Oktober 2018 07:32 To: draft-ietf-payload-tetra@ietf.org Cc: payload@ietf.org Subject: Update on draft-ietf-payload-tetra-00 Hi guys, The WGLC finished a couple of month ago. Do you have any plans to update th= e document accordingly. Thanks Roni Even Payload WG co-chair --_000_2a9a01ef9f824d20808106e334f6fdf4frequentiscom_ Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

Hi Roni,

So sorry not respondin= g in acceptable interval – was sooo busy with other stuff.=

Yes – I want to = incorporate comments and improve the document accordingly – I plan to= work on it in October to have a new draft ready by end of this month<= /o:p>

 

Br

Andreas

 

From: Roni Even (A) [mailto:roni.even@huawei.com]
Sent: Dienstag, 09. Oktober 2018 07:32
To: draft-ietf-payload-tetra@ietf.org
Cc: payload@ietf.org
Subject: Update on draft-ietf-payload-tetra-00

 

Hi guys,

The WGLC finished a couple of m= onth ago. Do you have any plans to update the document accordingly.

Thanks

Roni Even

Payload WG co-chair<= /span>

--_000_2a9a01ef9f824d20808106e334f6fdf4frequentiscom_-- From nobody Mon Oct 8 23:02:37 2018 Return-Path: X-Original-To: payload@ietfa.amsl.com Delivered-To: payload@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 1D98D131193; Mon, 8 Oct 2018 23:02:36 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -2.599 X-Spam-Level: X-Spam-Status: No, score=-2.599 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_LOW=-0.7, SPF_PASS=-0.001, URIBL_BLOCKED=0.001] autolearn=ham autolearn_force=no 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 0tbghksip5ZP; Mon, 8 Oct 2018 23:02:34 -0700 (PDT) Received: from huawei.com (lhrrgout.huawei.com [185.176.76.210]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id CE5BB131167; Mon, 8 Oct 2018 23:02:33 -0700 (PDT) Received: from lhreml703-cah.china.huawei.com (unknown [172.18.7.108]) by Forcepoint Email with ESMTP id 0836CE71335B7; Tue, 9 Oct 2018 07:02:29 +0100 (IST) Received: from DGGEMM405-HUB.china.huawei.com (10.3.20.213) by lhreml703-cah.china.huawei.com (10.201.108.44) with Microsoft SMTP Server (TLS) id 14.3.399.0; Tue, 9 Oct 2018 07:02:30 +0100 Received: from DGGEMM526-MBX.china.huawei.com ([169.254.8.153]) by DGGEMM405-HUB.china.huawei.com ([10.3.20.213]) with mapi id 14.03.0399.000; Tue, 9 Oct 2018 14:02:07 +0800 From: "Roni Even (A)" To: REISENBAUER Andreas , "draft-ietf-payload-tetra@ietf.org" CC: "payload@ietf.org" Thread-Topic: Update on draft-ietf-payload-tetra-00 Thread-Index: AdRfkT6bZzvV+J0ZSAWkCFbQx2GniQAA1j4AAAAkTFA= Date: Tue, 9 Oct 2018 06:02:07 +0000 Message-ID: <6E58094ECC8D8344914996DAD28F1CCD8E3F5A@dggemm526-mbx.china.huawei.com> References: <6E58094ECC8D8344914996DAD28F1CCD8E3F11@dggemm526-mbx.china.huawei.com> <2a9a01ef9f824d20808106e334f6fdf4@frequentis.com> In-Reply-To: <2a9a01ef9f824d20808106e334f6fdf4@frequentis.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [10.200.202.226] Content-Type: multipart/alternative; boundary="_000_6E58094ECC8D8344914996DAD28F1CCD8E3F5Adggemm526mbxchina_" MIME-Version: 1.0 X-CFilter-Loop: Reflected Archived-At: Subject: Re: [payload] Update on draft-ietf-payload-tetra-00 X-BeenThere: payload@ietf.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Audio/Video Transport Payloads working group discussion list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 09 Oct 2018 06:02:36 -0000 --_000_6E58094ECC8D8344914996DAD28F1CCD8E3F5Adggemm526mbxchina_ Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Hi Andreas, OK, There is no need to do it before IETF103 but please note that due to IE= TF103: * 2018-10-22 (Monday): Internet Draft submission cut-off (for all draft= s, including -00) by UTC 23:59. Upload using the ID Submission Tool. Draft submission will reopen when IETF103 starts which is beginning of Nove= mber Roni From: REISENBAUER Andreas [mailto:Andreas.Reisenbauer@frequentis.com] Sent: Tuesday, October 09, 2018 8:57 AM To: Roni Even (A); draft-ietf-payload-tetra@ietf.org Cc: payload@ietf.org Subject: RE: Update on draft-ietf-payload-tetra-00 Hi Roni, So sorry not responding in acceptable interval - was sooo busy with other s= tuff. Yes - I want to incorporate comments and improve the document accordingly -= I plan to work on it in October to have a new draft ready by end of this m= onth Br Andreas From: Roni Even (A) [mailto:roni.even@huawei.com] Sent: Dienstag, 09. Oktober 2018 07:32 To: draft-ietf-payload-tetra@ietf.org Cc: payload@ietf.org Subject: Update on draft-ietf-payload-tetra-00 Hi guys, The WGLC finished a couple of month ago. Do you have any plans to update th= e document accordingly. Thanks Roni Even Payload WG co-chair --_000_6E58094ECC8D8344914996DAD28F1CCD8E3F5Adggemm526mbxchina_ Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

Hi Andreas,=

OK, There is no need t= o do it before IETF103 but please note that due to IETF103:

 

  • 2018-10-22 (Monday): Int= ernet Draft submission cut-off (for all drafts, including -00) by UTC 23:59= . Upload using the ID Submission Tool.

 

Draft submission will = reopen when IETF103 starts which is beginning of November=

 

 

Roni=

 

From: REISENBA= UER Andreas [mailto:Andreas.Reisenbauer@frequentis.com]
Sent: Tuesday, October 09, 2018 8:57 AM
To: Roni Even (A); draft-ietf-payload-tetra@ietf.org
Cc: payload@ietf.org
Subject: RE: Update on draft-ietf-payload-tetra-00=

 

Hi Roni= ,

So sorr= y not responding in acceptable interval – was sooo busy with other st= uff.

Yes = 211; I want to incorporate comments and improve the document accordingly &#= 8211; I plan to work on it in October to have a new draft ready by end of t= his month

&n= bsp;

Br=

Andreas=

&n= bsp;

 

Hi guys,

The WGLC finished a couple of month ago. Do you have= any plans to update the document accordingly.

Thanks

Roni Even

Payload WG co-chair

--_000_6E58094ECC8D8344914996DAD28F1CCD8E3F5Adggemm526mbxchina_-- From nobody Tue Oct 9 23:43:00 2018 Return-Path: X-Original-To: payload@ietfa.amsl.com Delivered-To: payload@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 54AEC130EA1 for ; Tue, 9 Oct 2018 23:42:47 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -1.899 X-Spam-Level: X-Spam-Status: No, score=-1.899 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_NONE=-0.0001] autolearn=ham autolearn_force=no Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (2048-bit key) header.d=networked-media.20150623.gappssmtp.com 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 1pz946wVPV_e for ; Tue, 9 Oct 2018 23:42:45 -0700 (PDT) Received: from mail-yw1-xc2c.google.com (mail-yw1-xc2c.google.com [IPv6:2607:f8b0:4864:20::c2c]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 65BAC130EAC for ; Tue, 9 Oct 2018 23:42:45 -0700 (PDT) Received: by mail-yw1-xc2c.google.com with SMTP id l79-v6so1741281ywc.7 for ; Tue, 09 Oct 2018 23:42:45 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=networked-media.20150623.gappssmtp.com; s=20150623; h=mime-version:from:date:message-id:subject:to; bh=P80B2L+4th6fe2pOTrUeJ0xybfriAdXyGnhRoHoj5yo=; b=wtm1dxQm6HvW7AgmiAD7ygOKORJOB14Y5Ce02Gg8n4DI3jvLjwx0Qpboh8Tru4U0YI e2fxjHOIAEAYiSv5AYIjvbF6X8/M+6sSjmEgTHDtEypNiHG262WMTTfzjYWrZoHRlbni 3jNwpI8h+IXsQZqBmcmTW73DyO8wBJdXcfio8XyMQPZUMLYsID9gSNGt8R6l+nuB8B9k ufXKbmMnr1I18OzNT7jiXMN7DMF9xcHYOdaIl0FeO0VZwHXMJkHCp/8yzXxsxV7USkJm 6V5sLkR81QoY4qohN69Pgsy1ktty69AE8kHAN9CQr6hahW9o+vRkM6o+RUjueODH3m3M XL1Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:from:date:message-id:subject:to; bh=P80B2L+4th6fe2pOTrUeJ0xybfriAdXyGnhRoHoj5yo=; b=B3iLy3qM06GGEU3oxY1fAxf0/KKApZQmUAsXLA2HTH1fSP+Zc99Hx+7E9+ezPkGdQ6 XTyddE83S7JX/i5mR5c9NFmg+zAVThTeox2BN3zgzsP6X7igwcohFlGYtMK1HHlSIhyY BFSPwE0iyGDKkNTB5JGuSlmBt81hgwBi4IfB3EZEQmUIASYhzEGv5s+aVN9sgTsUi2Ng M3vBekYZNmW4+xHdd+cX0NKRFcltA7K9hWaFEvfmK8XEE2a7nI++B6d+mKPQZSooqlpc mLmpJGXTd3MEG6uYvdPwUItoarKbvJ+S5Xnsl+RXjqxEk/rHylR68x46BJhNSRuXwh4a PvTw== X-Gm-Message-State: ABuFfohQmvDG8m00dk6AsrzaOzfYrbdBshSTRW7qm/fxlKk5SRTG5pYR QHOJN86oeqwnUJd5YR0gBxDenjVt5nUL1/tPTiw78f0R0SIdTw== X-Google-Smtp-Source: ACcGV61sfXV82H6U5UCrUM4ChJSNdJ08c35F0QGR9oxn6aGGyjAnwcDr6RP4B7Zsc/30Dr3JWeu3F42hhx+DPP0vnkU= X-Received: by 2002:a81:2a42:: with SMTP id q63-v6mr16941411ywq.91.1539153764407; Tue, 09 Oct 2018 23:42:44 -0700 (PDT) MIME-Version: 1.0 From: "Ali C. Begen" Date: Wed, 10 Oct 2018 09:42:33 +0300 Message-ID: To: payload@ietf.org Content-Type: multipart/alternative; boundary="00000000000061f52b0577da2982" Archived-At: Subject: [payload] WGLC for draft-ietf-payload-tsvcis-00.txt X-BeenThere: payload@ietf.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Audio/Video Transport Payloads working group discussion list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 10 Oct 2018 06:42:59 -0000 --00000000000061f52b0577da2982 Content-Type: text/plain; charset="UTF-8" All, This is to start the WGLC for the following draft: https://www.ietf.org/id/draft-ietf-payload-tsvcis-00.txt Please send comments to the list by Oct. 24th. Thanks. -acbegen --00000000000061f52b0577da2982 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
All,

This is to start = the WGLC for the following draft:

Please send comments t= o the list by Oct. 24th.

Thanks.
-acbege= n
--00000000000061f52b0577da2982-- From nobody Wed Oct 10 03:36:19 2018 Return-Path: X-Original-To: payload@ietfa.amsl.com Delivered-To: payload@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id B51B1130ECC for ; Wed, 10 Oct 2018 03:36:17 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -2.6 X-Spam-Level: X-Spam-Status: No, score=-2.6 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_LOW=-0.7, SPF_PASS=-0.001] autolearn=ham autolearn_force=no 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 P_tSqEgLrGuo for ; Wed, 10 Oct 2018 03:36:15 -0700 (PDT) Received: from huawei.com (lhrrgout.huawei.com [185.176.76.210]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 0598B130EC1 for ; Wed, 10 Oct 2018 03:36:15 -0700 (PDT) Received: from LHREML714-CAH.china.huawei.com (unknown [172.18.7.106]) by Forcepoint Email with ESMTP id 4AD05BF5D0879 for ; Wed, 10 Oct 2018 11:36:11 +0100 (IST) Received: from DGGEMM403-HUB.china.huawei.com (10.3.20.211) by LHREML714-CAH.china.huawei.com (10.201.108.37) with Microsoft SMTP Server (TLS) id 14.3.399.0; Wed, 10 Oct 2018 11:36:12 +0100 Received: from DGGEMM526-MBX.china.huawei.com ([169.254.8.153]) by DGGEMM403-HUB.china.huawei.com ([10.3.20.211]) with mapi id 14.03.0399.000; Wed, 10 Oct 2018 18:36:01 +0800 From: "Roni Even (A)" To: "Ali C. Begen" , "payload@ietf.org" Thread-Topic: [payload] WGLC for draft-ietf-payload-tsvcis-00.txt Thread-Index: AQHUYGTb/Ck/lD1KcUi9WL2LGJ4ieaUYQaVw Date: Wed, 10 Oct 2018 10:36:01 +0000 Message-ID: <6E58094ECC8D8344914996DAD28F1CCD8E47AD@dggemm526-mbx.china.huawei.com> References: In-Reply-To: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [10.200.202.226] Content-Type: multipart/alternative; boundary="_000_6E58094ECC8D8344914996DAD28F1CCD8E47ADdggemm526mbxchina_" MIME-Version: 1.0 X-CFilter-Loop: Reflected Archived-At: Subject: Re: [payload] WGLC for draft-ietf-payload-tsvcis-00.txt X-BeenThere: payload@ietf.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Audio/Video Transport Payloads working group discussion list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 10 Oct 2018 10:36:18 -0000 --_000_6E58094ECC8D8344914996DAD28F1CCD8E47ADdggemm526mbxchina_ Content-Type: 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--_000_6E58094ECC8D8344914996DAD28F1CCD8E47ADdggemm526mbxchina_-- From nobody Tue Oct 16 14:06:52 2018 Return-Path: X-Original-To: payload@ietf.org Delivered-To: payload@ietfa.amsl.com Received: from ietfa.amsl.com (localhost [IPv6:::1]) by ietfa.amsl.com (Postfix) with ESMTP id 9AF79130E35; Tue, 16 Oct 2018 14:06:50 -0700 (PDT) MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit From: internet-drafts@ietf.org To: Cc: payload@ietf.org X-Test-IDTracker: no X-IETF-IDTracker: 6.87.0 Auto-Submitted: auto-generated Precedence: bulk Reply-To: payload@ietf.org Message-ID: <153972401061.9461.724003925217949309@ietfa.amsl.com> Date: Tue, 16 Oct 2018 14:06:50 -0700 Archived-At: Subject: [payload] I-D Action: draft-ietf-payload-tsvcis-01.txt X-BeenThere: payload@ietf.org X-Mailman-Version: 2.1.29 List-Id: Audio/Video Transport Payloads working group discussion list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 16 Oct 2018 21:06:50 -0000 A New Internet-Draft is available from the on-line Internet-Drafts directories. This draft is a work item of the Audio/Video Transport Payloads WG of the IETF. Title : RTP Payload Format for TSVCIS Codec Authors : Victor Demjanenko John Punaro David Satterlee Filename : draft-ietf-payload-tsvcis-01.txt Pages : 20 Date : 2018-10-16 Abstract: This document describes the RTP payload format for the Tactical Secure Voice Cryptographic Interoperability Specification (TSVCIS) speech coder. TSVCIS is a scalable narrowband voice coder supporting varying encoder data rates and fallbacks. It is implemented as an augmentation to the Mixed Excitation Linear Prediction Enhanced (MELPe) speech coder by conveying additional speech coder parameters for enhancing voice quality. TSVCIS augmented speech data is processed in conjunction with its temporal matched MELP 2400 speech data. The RTP packetization of TSVCIS and MELPe speech coder data is described in detail. The IETF datatracker status page for this draft is: https://datatracker.ietf.org/doc/draft-ietf-payload-tsvcis/ There are also htmlized versions available at: https://tools.ietf.org/html/draft-ietf-payload-tsvcis-01 https://datatracker.ietf.org/doc/html/draft-ietf-payload-tsvcis-01 A diff from the previous version is available at: https://www.ietf.org/rfcdiff?url2=draft-ietf-payload-tsvcis-01 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/ From nobody Tue Oct 16 14:15:12 2018 Return-Path: X-Original-To: payload@ietfa.amsl.com Delivered-To: payload@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id CFB58130E42 for ; Tue, 16 Oct 2018 14:15:10 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -0.9 X-Spam-Level: X-Spam-Status: No, score=-0.9 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, HTML_MESSAGE=0.001, MSGID_MULTIPLE_AT=1, SPF_PASS=-0.001] autolearn=no autolearn_force=no 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 1zw1yIa4VxP2 for ; Tue, 16 Oct 2018 14:15:09 -0700 (PDT) Received: from host105.olm1.com (host105.olm1.com [72.236.255.15]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 27BC6130E35 for ; Tue, 16 Oct 2018 14:15:09 -0700 (PDT) Received: from ClintonLT (rrcs-72-43-202-98.nys.biz.rr.com [72.43.202.98]) by host105.olm1.com (Postfix) with ESMTPSA id BEF24B428F5; Tue, 16 Oct 2018 17:15:05 -0400 (EDT) From: "Victor Demjanenko, Ph.D." To: "'Roni Even \(A\)'" , "'Ali C. Begen'" , Cc: "'Victor Demjanenko, Ph.D.'" , "'Dave Satterlee \(Vocal\)'" , "'John Punaro'" References: <6E58094ECC8D8344914996DAD28F1CCD8E47AD@dggemm526-mbx.china.huawei.com> In-Reply-To: <6E58094ECC8D8344914996DAD28F1CCD8E47AD@dggemm526-mbx.china.huawei.com> Date: Tue, 16 Oct 2018 17:15:04 -0400 Message-ID: <148c01d46595$4f6f6560$ee4e3020$@demjanenko@vocal.com> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_148D_01D46573.C85DC560" X-Mailer: Microsoft Office Outlook 12.0 Content-Language: en-us Thread-Index: AQHUYGTb/Ck/lD1KcUi9WL2LGJ4ieaUYQaVwgAomUfA= Archived-At: Subject: Re: [payload] WGLC for draft-ietf-payload-tsvcis-00.txt X-BeenThere: payload@ietf.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Audio/Video Transport Payloads working group discussion list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 16 Oct 2018 21:15:11 -0000 This is a multi-part message in MIME format. ------=_NextPart_000_148D_01D46573.C85DC560 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Hi Roni, =20 Thanks for your comments. We have incorporated most of them into the = latest draft. As best I know, the NRL paper is the best public = description. I am trying to see if a more detailed document can be = released. I should know that perhaps in a month or two. =20 The TSVCIS speed data is used always in combination with a MELP 2400 bps = frame. So the two of them must reside in the same RTP packet. I added = =E2=80=9Cin the same RTP payload=E2=80=9D to the sentence you asked = about in section 3.2. As for you comment in section 3.3, I did not feel = a change was necessary given the clarification just added. =20 Again thank you for the concise comments and your help with shepparding = this through the approval process. =20 Regard, =20 Victor, Dave and John =20 From: payload [mailto:payload-bounces@ietf.org] On Behalf Of Roni Even = (A) Sent: Wednesday, October 10, 2018 6:36 AM To: Ali C. Begen; payload@ietf.org Subject: Re: [payload] WGLC for draft-ietf-payload-tsvcis-00.txt =20 Hi, I read the document, some comments =20 1. Add a reference to TSVCIS in section 1 when first mentioned. Is = there a reference to tsvcis that is publically available? =20 2. the following sentence in 3.1 is not clear =E2=80=9CRTP = packetization of MELPe follows RFC 8130 and is repeated here for all = three MELPe rates [RFC8130] which with promoted suggestions or = recommendations now regarded as requirements =E2=80=9C =20 3. Typo in section 3.1 =E2=80=9CThe comfort nosie frame=E2=80=9D=20 =20 4. In section 3.2 =E2=80=9CThe TSVCIS augmented speech data as packed = parameters MUST be placed immediately after a corresponding MELPe 2400 = bps payload =E2=80=9C does it mean in the same RTP packet? =20 =20 5. section 3.3 =E2=80=9CTSVCIS coder frames in a single RTP packet MAY = be of different coder bitrates. With the exception for the variable = length TSVCIS parameter frames, the coder rate bits in the trailing byte = identify the contents and length as per Table 1.=E2=80=9D I understand that = the parsing is done by looking at the expected position for the CODA, = CODB and CODC, this is similar to MELPE but here there is tsvcis data = which is variable length. Is the parsing done by assuming that the = tsvcis data frame may only appear after a 2400 frame?=20 =20 6. In section 4.1 for tcmax maybe specify 35 and ask for feedback =20 7. In section 4.1 published specification should be RFCXXXXand ask the = RFC editor to replace with the RFC number of this document. =20 Roni Even as individual =20 =20 =20 =20 From: payload [mailto:payload-bounces@ietf.org] On Behalf Of Ali C. = Begen Sent: Wednesday, October 10, 2018 9:43 AM To: payload@ietf.org Subject: [payload] WGLC for draft-ietf-payload-tsvcis-00.txt =20 All, =20 This is to start the WGLC for the following draft: https://www.ietf.org/id/draft-ietf-payload-tsvcis-00.txt =20 Please send comments to the list by Oct. 24th. =20 Thanks. -acbegen ------=_NextPart_000_148D_01D46573.C85DC560 Content-Type: text/html; charset="utf-8" Content-Transfer-Encoding: quoted-printable

Hi Roni,

 

Thanks for your comments.=C2=A0 We have incorporated most of them = into the latest draft.=C2=A0 As best I know, the NRL paper is the best = public description.=C2=A0 I am trying to see if a more detailed document = can be released.=C2=A0 I should know that perhaps in a month or = two.

 

The TSVCIS speed data is used always in combination with a MELP 2400 = bps frame.=C2=A0 So the two of them must reside in the same RTP = packet.=C2=A0 I added =E2=80=9Cin the same RTP payload=E2=80=9D to the = sentence you asked about in section 3.2.=C2=A0 As for you comment in = section 3.3, I did not feel a change was necessary given the = clarification just added.

 

Again thank you for the concise comments and your help with = shepparding this through the approval process.

 

Regard,

 

Victor, Dave and John

 

From:= = payload [mailto:payload-bounces@ietf.org] On Behalf Of Roni Even = (A)
Sent: Wednesday, October 10, 2018 6:36 AM
To: = Ali C. Begen; payload@ietf.org
Subject: Re: [payload] WGLC for = draft-ietf-payload-tsvcis-00.txt

 

Hi,

I read the = document, some comments

 =

1. =   Add a reference to TSVCIS in section 1 when first mentioned. = Is there a reference to tsvcis that is publically = available?

 =

2. the = following sentence in 3.1 is not clear  =E2=80=9CRTP packetization = of MELPe follows RFC 8130 and is repeated here for all three MELPe rates = [RFC8130] which with promoted suggestions or recommendations now = regarded as requirements =E2=80=9C

 =

3. =  Typo in section 3.1 =E2=80=9CThe comfort nosie frame=E2=80=9D =

 =

4. In = section 3.2 =E2=80=9CThe TSVCIS augmented speech data as packed = parameters MUST be placed immediately after a corresponding MELPe 2400 = bps payload =E2=80=9C does it mean in the same RTP = packet?

 =

 =

5. section = 3.3 =E2=80=9CTSVCIS coder frames in a single RTP packet MAY be of = different coder bitrates.  With the exception for the variable = length TSVCIS parameter frames, the coder rate bits in the trailing byte = identify

  = ; the contents and length as per Table 1.=E2=80=9D I understand that the = parsing is done by looking at the expected position for the CODA, CODB = and CODC, this is similar to MELPE but here there is tsvcis data which = is variable length. Is the parsing done by assuming that the tsvcis data = frame may only appear after a 2400 frame?

 =

6. In = section 4.1 for tcmax maybe specify 35 and ask for = feedback

 =

7. In = section 4.1 published specification should be RFCXXXXand ask the RFC = editor to replace with the RFC number of this = document.

 =

Roni Even = as individual

 

 

 

 

From:= = payload [mailto:payload-bounces@ietf.org] On Behalf Of Ali C. = Begen
Sent: Wednesday, October 10, 2018 9:43 AM
To: = payload@ietf.org
Subject: [payload] WGLC for = draft-ietf-payload-tsvcis-00.txt

 

All,

 

This is to start the WGLC for the following = draft:

https:/= /www.ietf.org/id/draft-ietf-payload-tsvcis-00.txt

 

Please send comments to the list by Oct. = 24th.

 

Thanks.

-acbegen

<= /html> ------=_NextPart_000_148D_01D46573.C85DC560-- From nobody Mon Oct 22 11:26:25 2018 Return-Path: X-Original-To: payload@ietf.org Delivered-To: payload@ietfa.amsl.com Received: from ietfa.amsl.com (localhost [IPv6:::1]) by ietfa.amsl.com (Postfix) with ESMTP id D7C77130E48; Mon, 22 Oct 2018 11:26:06 -0700 (PDT) MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit From: internet-drafts@ietf.org To: Cc: payload@ietf.org X-Test-IDTracker: no X-IETF-IDTracker: 6.87.1 Auto-Submitted: auto-generated Precedence: bulk Reply-To: payload@ietf.org Message-ID: <154023276681.7058.10919171219035703009@ietfa.amsl.com> Date: Mon, 22 Oct 2018 11:26:06 -0700 Archived-At: Subject: [payload] I-D Action: draft-ietf-payload-flexible-fec-scheme-09.txt X-BeenThere: payload@ietf.org X-Mailman-Version: 2.1.29 List-Id: Audio/Video Transport Payloads working group discussion list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 22 Oct 2018 18:26:08 -0000 A New Internet-Draft is available from the on-line Internet-Drafts directories. This draft is a work item of the Audio/Video Transport Payloads WG of the IETF. Title : RTP Payload Format for Flexible Forward Error Correction (FEC) Authors : Mo Zanaty Varun Singh Ali Begen Giridhar Mandyam Filename : draft-ietf-payload-flexible-fec-scheme-09.txt Pages : 41 Date : 2018-10-22 Abstract: This document defines new RTP payload formats for the Forward Error Correction (FEC) packets that are generated by the non-interleaved and interleaved parity codes from source media encapsulated in RTP. These parity codes are systematic codes, where a number of FEC repair packets are generated from a set of source packets from one or more source RTP streams. These FEC repair packets are sent in a redundancy RTP stream separate from the source RTP stream(s) that carries the source packets. RTP source packets that were lost in transmission can be reconstructed using the source and repair packets that were received. The non-interleaved and interleaved parity codes which are defined in this specification offer a good protection against random and bursty packet losses, respectively, at a cost of decent complexity. The RTP payload formats that are defined in this document address the scalability issues experienced with the earlier specifications including RFC 2733, RFC 5109 and SMPTE 2022-1, and offer several improvements. Due to these changes, the new payload formats are not backward compatible with the earlier specifications, but endpoints that do not implement this specification can still work by simply ignoring the FEC repair packets. The IETF datatracker status page for this draft is: https://datatracker.ietf.org/doc/draft-ietf-payload-flexible-fec-scheme/ There are also htmlized versions available at: https://tools.ietf.org/html/draft-ietf-payload-flexible-fec-scheme-09 https://datatracker.ietf.org/doc/html/draft-ietf-payload-flexible-fec-scheme-09 A diff from the previous version is available at: https://www.ietf.org/rfcdiff?url2=draft-ietf-payload-flexible-fec-scheme-09 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/ From nobody Tue Oct 23 07:53:01 2018 Return-Path: X-Original-To: payload@ietf.org Delivered-To: payload@ietfa.amsl.com Received: from ietfa.amsl.com (localhost [IPv6:::1]) by ietfa.amsl.com (Postfix) with ESMTP id 1BD011294D0; Tue, 23 Oct 2018 07:53:00 -0700 (PDT) MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit From: internet-drafts@ietf.org To: Cc: payload@ietf.org X-Test-IDTracker: no X-IETF-IDTracker: 6.87.1 Auto-Submitted: auto-generated Precedence: bulk Reply-To: payload@ietf.org Message-ID: <154030638006.31220.16457705786057090405@ietfa.amsl.com> Date: Tue, 23 Oct 2018 07:53:00 -0700 Archived-At: Subject: [payload] I-D Action: draft-ietf-payload-tetra-01.txt X-BeenThere: payload@ietf.org X-Mailman-Version: 2.1.29 List-Id: Audio/Video Transport Payloads working group discussion list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 23 Oct 2018 14:53:00 -0000 A New Internet-Draft is available from the on-line Internet-Drafts directories. This draft is a work item of the Audio/Video Transport Payloads WG of the IETF. Title : RTP Payload Format for the TETRA Audio Codec Authors : Andreas Reisenbauer Udo Brandhuber Joachim Hagedorn Klaus-Peter Höhnsch Stefan Wenk Filename : draft-ietf-payload-tetra-01.txt Pages : 14 Date : 2018-10-23 Abstract: This document specifies a Real-time Transport Protocol (RTP) payload format for TETRA encoded speech signals. The payload format is designed to be able to interoperate with existing TETRA transport formats on non-IP networks. A media type registration is included, specifying the use of the RTP payload format and the storage format. The IETF datatracker status page for this draft is: https://datatracker.ietf.org/doc/draft-ietf-payload-tetra/ There are also htmlized versions available at: https://tools.ietf.org/html/draft-ietf-payload-tetra-01 https://datatracker.ietf.org/doc/html/draft-ietf-payload-tetra-01 A diff from the previous version is available at: https://www.ietf.org/rfcdiff?url2=draft-ietf-payload-tetra-01 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/ From nobody Tue Oct 23 09:14:29 2018 Return-Path: X-Original-To: payload@ietfa.amsl.com Delivered-To: payload@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id AECB7130EE1 for ; Tue, 23 Oct 2018 09:14:27 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -4.189 X-Spam-Level: X-Spam-Status: No, score=-4.189 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_MED=-2.3, SPF_PASS=-0.001, T_KAM_HTML_FONT_INVALID=0.01, URIBL_BLOCKED=0.001] autolearn=ham autolearn_force=no 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 9VNELjdrCNvE for ; Tue, 23 Oct 2018 09:14:25 -0700 (PDT) Received: from mail1.frequentis.com (mail1.frequentis.com [195.20.158.50]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id AD367124408 for ; Tue, 23 Oct 2018 09:14:23 -0700 (PDT) X-IronPort-AV: E=Sophos; i="5.54,416,1534802400"; d="scan'208,217"; a="30754567" Received: from frqat01nt71.frequentis.frq ([172.16.1.71]) by mail1.frequentis.com with ESMTP; 23 Oct 2018 18:14:20 +0200 From: REISENBAUER Andreas To: "Dave Satterlee (Vocal)" , "payload@ietf.org" Thread-Topic: [payload] WGLC on draft-ietf-payload-tetra-00 Thread-Index: AQHUGHh5Neye9CqmAU6D50twNjEfQqUtpYrQ Date: Tue, 23 Oct 2018 16:14:20 +0000 Message-ID: References: In-Reply-To: Accept-Language: de-AT, de-DE, en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [172.16.1.246] Content-Type: multipart/alternative; boundary="_000_a52e79783be94beaa9e82147c106ab26frequentiscom_" MIME-Version: 1.0 Archived-At: Subject: Re: [payload] WGLC on draft-ietf-payload-tetra-00 X-BeenThere: payload@ietf.org X-Mailman-Version: 2.1.29 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b2R5Pg0KPC9odG1sPg0K --_000_a52e79783be94beaa9e82147c106ab26frequentiscom_-- From nobody Tue Oct 23 09:21:32 2018 Return-Path: X-Original-To: payload@ietfa.amsl.com Delivered-To: payload@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id D1D56130EE1 for ; Tue, 23 Oct 2018 09:21:30 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -4.199 X-Spam-Level: X-Spam-Status: No, score=-4.199 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_MED=-2.3, SPF_PASS=-0.001, URIBL_BLOCKED=0.001] autolearn=ham autolearn_force=no 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 WhO6YsZ9n-IF for ; Tue, 23 Oct 2018 09:21:28 -0700 (PDT) Received: from mail2.frequentis.com (mail2.frequentis.com [195.20.158.51]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 45ADE130EB0 for ; Tue, 23 Oct 2018 09:21:26 -0700 (PDT) X-IronPort-AV: E=Sophos;i="5.54,416,1534802400"; d="scan'208,217";a="3153982" Received: from frqat01nt71.frequentis.frq ([172.16.1.71]) by mail2.frequentis.com with ESMTP; 23 Oct 2018 18:21:24 +0200 From: REISENBAUER Andreas To: "Ralf.Dux@t-systems.com" , "payload@ietf.org" Thread-Topic: Review Comments for RTP Payload Format for the TETRA Audio Codec Thread-Index: AdP2u75ssD9Xj2elQ3ufCYEY1v5M1h0MGNnA Date: Tue, 23 Oct 2018 16:21:24 +0000 Message-ID: <88bf038903fb42d49c4e7b86e57fbf2a@frequentis.com> References: <27ac31c683224cbfb995cb2338bc4bd5@HE105667.emea1.cds.t-internal.com> In-Reply-To: <27ac31c683224cbfb995cb2338bc4bd5@HE105667.emea1.cds.t-internal.com> Accept-Language: de-AT, de-DE, en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [172.16.1.246] Content-Type: multipart/alternative; boundary="_000_88bf038903fb42d49c4e7b86e57fbf2afrequentiscom_" MIME-Version: 1.0 Archived-At: Subject: Re: [payload] Review Comments for RTP Payload Format for the TETRA Audio Codec X-BeenThere: payload@ietf.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Audio/Video Transport Payloads working group discussion list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 23 Oct 2018 16:21:31 -0000 --_000_88bf038903fb42d49c4e7b86e57fbf2afrequentiscom_ Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Hi Ralf, Thanks a lot for your comments. As we also had a chat on the phone I hope I= 've hit all your proposals with the uploaded version 01 of draft-ietf-paylo= ad-tetra-01 Pls let me know if I missed anything or did not put it in as clear as it co= uld be Br Andreas From: payload [mailto:payload-bounces@ietf.org] On Behalf Of Ralf.Dux@t-sys= tems.com Sent: Montag, 28. Mai 2018 21:41 To: payload@ietf.org Subject: [payload] Review Comments for RTP Payload Format for the TETRA Aud= io Codec Review Comments for RTP Payload Format for the TETRA Audio Codec draft-ietf-payload-tetra-00 2018-05-23 by Ralf Dux ralf.dux@t-systems.com General Comment: >From my point of view the draft-ietf-payload-tetra-00 document describes th= e payload format and used protocols correctly and completely. With this information a= developer should be able to implement the payload protocol. But one important point needs clarification. If the content of RTP packets are not going to be restricted to one or two = TETRA frames (30ms or 60ms speech content) the meaning of the control bits and the relationship to resulting or origin= ating FSTE/OSTE packets on the E1 line must be described for cases where more than two TETRA records are in an RTP= frame. Review Comments: 4.3.3. CTRL: Control bit(5 bits) Wording line 285: "document" should be added General: Clarification needed for cases where more than two TETRA frames ar= e in the RTP packet. 285 NOTE: The meaning of C4 and C5 is outside the scope of the present d= ocument 286 287 4.3.4. C bit: Failed Crypto operation indication 5. Payload example Wording line 358: "of" should be replaced by "the" 356 The following example shows how a first and a consecutive 30 ms fram= e 357 is combined into a single 60ms RTP packet. Note: This example shows 358 the usage of OSTE mapping. 359 360 0 1 2 3 6. Congestion Control Considerations Clarification needed line 415: What is acceptable and what shall be done if= the current loss rate is not?? 414 used is: users of this payload format MUST monitor packet loss to 415 ensure that the packet loss rate is within acceptable parameters. 416 417 7. Payload Format Parameters 7.1. Media Type Definition Line 455: Clarification needed for cases where more than two TETRA frames a= re in the RTP packet. 454 size. If this parameter is not present, the sender MAY 455 encapsulate any number of speech frames into one RTP packet. 456 ptime: 457 see RFC 4566 [RFC4566]. 8.1. Offer/Answer Considerations Line 535: Clarification needed for cases where more than two TETRA frames a= re in the RTP packet. o Integer multiples of 30ms SHALL be used for ptime.. It is recommended to use packet size of 60ms. Even if there is no good reason why not doing so, there is no need that ptime and maxptime parameters are negotiated symmetrically.. Kind regards Ralf Dux DEUTSCHE TELEKOM HEALTHCARE AND SECURITY SOLUTIONS GMBH Ralf Dux System Engineer Security Hausanschrift: =DCberseering 2, 22297 Hamburg Postanschrift: 22297 Hamburg mailto: Ralf.Dux@t-systems.com www.t-systems..de/dths DEUTSCHE TELEKOM HEALTHCARE AND SECURITY SOLUTIONS GMBH Gesch=E4ftsf=FChrung: Peter B=F6ttcher, Holger Lesch, Arndt Lorenz Handelsregister: Amtsgericht Bonn HRB 20695 Sitz der Gesellschaft: Bonn WEEE-Reg.-Nr. DE50335567 GROSSE VER=C4NDERUNGEN FANGEN KLEIN AN - RESSOURCEN SCHONEN UND NICHT JEDE = E-MAIL DRUCKEN. Hinweis: Diese E-Mail und/oder die Anh=E4nge sind vertraulich und ausschlie= =DFlich f=FCr den bezeichneten Adressaten bestimmt. Die Weitergabe oder Kop= ieren dieser E-Mail ist strengstens verboten. Wenn Sie diese E-Mail irrt=FC= mlich erhalten haben, informieren Sie bitte unverz=FCglich den Absender und= vernichten Sie die Nachricht und alle Anh=E4nge. Vielen Dank --_000_88bf038903fb42d49c4e7b86e57fbf2afrequentiscom_ Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable

Hi Ralf,

Thanks a lot for your com= ments. As we also had a chat on the phone I hope I’ve hit all your pr= oposals with the uploaded version 01 of draft-ietf-payload-tetra-01

 <= /p>

Pls let me know if I miss= ed anything or did not put it in as clear as it could be<= /p>

 <= /p>

Br

Andreas=

 <= /p>

From: payload [mailto:payload-bounces@ietf.org] On Behalf Of Ralf.Dux@t-systems.com
Sent: Montag, 28. Mai 2018 21:41
To: payload@ietf.org
Subject: [payload] Review Comments for RTP Payload Format for the TE= TRA Audio Codec

 

Review Comments for

 

      &nb= sp;     RTP Payload Format for the TETRA Audio Codec

      &nb= sp;            =    draft-ietf-payload-tetra-00

 

2018-05-23 by

Ralf Dux

 

 

 

General Comment:

 

From my point of view the draft-ietf-pa= yload-tetra-00 document describes the payload

format and used protocols correctly and= completely. With this information a developer

should be able to implement the payload= protocol.

 

But one important point needs clarifica= tion.

If the content of RTP packets are not g= oing to be restricted to one or two TETRA frames (30ms or 60ms speech conte= nt)

the meaning of the control bits and the= relationship to resulting or originating FSTE/OSTE packets on the E1 line<= o:p>

must be described for cases where more = than two TETRA records are in an RTP frame.

 

 

Review Comments:

 

4.3.3.  CTRL: Control bit(5 bits)<= o:p>

Wording line 285: "document" = should be added

General: Clarification needed for cases= where more than two TETRA frames are in the RTP packet.<= /p>

285    NOTE: The meaning= of C4 and C5 is outside the scope of the present document

286

287 4.3.4.  C bit: Failed Crypto o= peration indication

 

 

5.  Payload example

Wording line 358: "of" should= be replaced by "the"

356    The following exa= mple shows how a first and a consecutive 30 ms frame

357    is combined into = a single 60ms RTP packet.  Note: This example shows<= /p>

358    the usage of OSTE= mapping.

359

360      = 0            &= nbsp;      1      &n= bsp;            2&nb= sp;            =       3

 

 

6.  Congestion Control Considerati= ons

Clarification needed line 415: What is = acceptable and what shall be done if the current loss rate is not??

414    used is: users of= this payload format MUST monitor packet loss to

415    ensure that the p= acket loss rate is within acceptable parameters.

416

417 7.  Payload Format Parameters<= o:p>

 

 

7.1.  Media Type Definition

Line 455: Clarification needed for case= s where more than two TETRA frames are in the RTP packet.=

454      = size.  If this parameter is not present, the sender MAY

455      = encapsulate any number of speech frames into one RTP packet.

456    ptime:=

457      = see RFC 4566 [RFC4566].

 

 

8.1.  Offer/Answer Considerations<= o:p>

Line 535: Clarification needed for case= s where more than two TETRA frames are in the RTP packet.=

   o  Integer multiples = of 30ms SHALL be used for ptime..  It is

      recommen= ded to use packet size of 60ms.  Even if there is no good

      reason w= hy not doing so, there is no need that ptime and maxptime=

      paramete= rs are negotiated symmetrically..

 

Kind regards

Ralf Dux

 

DEUTSCHE TELEKOM HEALTHCARE AND SECURITY = SOLUTIONS GMBH

Ralf Dux

System Engineer<= /o:p>

Security

Hausanschrift: =DCberseering 2, 22297 Ham= burg

Postanschrift: 22297 Hamburg

mailto: Ralf.Dux@t-systems.com<= /span>

 

DEUTSCHE TELEKOM HEALTHCARE = AND SECURITY SOLUTIONS GMBH
Gesch=E4ftsf=FChrung: Peter B=F6ttcher, Holger Lesch, Arndt Lorenz

Handelsregister: Amtsgericht= Bonn HRB 20695
Sitz der Gesellschaft: Bonn
WEEE-Reg.-Nr. DE50335567

 

GROSSE VER=C4NDERUNGEN FA= NGEN KLEIN AN – RESSOURCEN SCHONEN UND NICHT JEDE E-MAIL DRUCKEN.

 

Hinweis: Diese E-Mail und/od= er die Anh=E4nge sind vertraulich und ausschlie=DFlich f=FCr den bezeichnet= en Adressaten bestimmt. Die Weitergabe oder Kopieren dieser E-Mail ist strengstens verboten. Wenn Sie diese E-Mail irrt=FCmlich erhalten habe= n, informieren Sie bitte unverz=FCglich den Absender und vernichten Sie die= Nachricht und alle Anh=E4nge. Vielen Dank

 

 

 

--_000_88bf038903fb42d49c4e7b86e57fbf2afrequentiscom_-- From nobody Tue Oct 23 09:23:19 2018 Return-Path: X-Original-To: payload@ietfa.amsl.com Delivered-To: payload@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 15B9E130EB0 for ; Tue, 23 Oct 2018 09:23:17 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -4.199 X-Spam-Level: X-Spam-Status: No, score=-4.199 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_MED=-2.3, SPF_PASS=-0.001, URIBL_BLOCKED=0.001] autolearn=ham autolearn_force=no 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 8mHTmcm2CNoG for ; Tue, 23 Oct 2018 09:23:15 -0700 (PDT) Received: from mail2.frequentis.com (mail2.frequentis.com [195.20.158.51]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 79789130ECF for ; Tue, 23 Oct 2018 09:23:14 -0700 (PDT) X-IronPort-AV: E=Sophos;i="5.54,416,1534802400"; d="jpg'145?scan'145,208,217,145";a="3153986" Received: from frqat01nt72.frequentis.frq ([172.16.1.72]) by mail2.frequentis.com with ESMTP; 23 Oct 2018 18:23:12 +0200 From: REISENBAUER Andreas To: Schmack Steffen , "payload@ietf.org" Thread-Topic: [payload] Comment on RTP Payload Format for the TETRA Audio Codec Thread-Index: AdQatglPgtyr/XnKTRyBT99v3tk1MxQNn2Wg Date: Tue, 23 Oct 2018 16:23:12 +0000 Message-ID: <1d005bf091c94b459799a441c9bbe415@frequentis.com> References: <566684f8e021407f86048707550fb4f2@iabg.de> In-Reply-To: <566684f8e021407f86048707550fb4f2@iabg.de> Accept-Language: de-AT, de-DE, en-US Content-Language: en-US X-MS-Has-Attach: yes X-MS-TNEF-Correlator: x-originating-ip: [172.16.1.246] Content-Type: multipart/related; boundary="_004_1d005bf091c94b459799a441c9bbe415frequentiscom_"; type="multipart/alternative" MIME-Version: 1.0 Archived-At: Subject: Re: [payload] Comment on RTP Payload Format for the TETRA Audio Codec X-BeenThere: payload@ietf.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Audio/Video Transport Payloads working group discussion list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 23 Oct 2018 16:23:17 -0000 --_004_1d005bf091c94b459799a441c9bbe415frequentiscom_ Content-Type: multipart/alternative; boundary="_000_1d005bf091c94b459799a441c9bbe415frequentiscom_" --_000_1d005bf091c94b459799a441c9bbe415frequentiscom_ Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Hi Steffen, I just uploaded version 01 of draft-ietf-payload-tetra-01 which should inco= rporate all your inputs. Pls give it a double check. Thanks a lot for your review! Br Andreas From: payload [mailto:payload-bounces@ietf.org] On Behalf Of Schmack Steffe= n Sent: Freitag, 13. Juli 2018 17:11 To: payload@ietf.org Subject: [payload] Comment on RTP Payload Format for the TETRA Audio Codec General Comment: This draft seems to me as a well defined preparation for standardization of= TETRA voice signals transport via IP networks. It addresses the current ch= allenge of the interfacing between radio systems and control centers. Detailed Review Comments: 2. TETRA: TErrestial Trunked RAdio (>>have a look at the capitals) 3. The TETRA codec is designed in such a way that on the air interface two of these 30ms samples are transported together (sub- block 1 and sub-block 2). (>> "these" instead of "theses") Codec payload is specified for TDM lines with 2048 kBit/s serialisation wit= hin the traditional circuit mode based TETRA system (>>place "traditional circuit mode based TETRA system" at the end) These two formats differ mainly ... (>> usage of "differ" instead of "defer") 5. Note: This example shows the usage of OSTE mapping. (>>usage of "the" instead of "of") Kind Regards Steffen Schmack [Beschreibung: Logo_IABG_klein] IABG mbH, Niederlassung Berlin Friedrichstra=DFe 185 / Haus E 10117 Berlin Mobile: +49 175 1902649 e-Mail: schmack@iabg.de Web: http://www.iabg.de ________________________________ Industrieanlagen-Betriebsgesellschaft mbH Sitz der Gesellschaft: Ottobrunn, Registergericht: Amtsgericht M=FCnchen, H= RB 5499 Gesch=E4ftsf=FChrung: Prof. Dr.-Ing. Rudolf F. Schwarz Vorsitzender des Aufsichtsrats: RA Engelbert Kupka MdL a.D. --_000_1d005bf091c94b459799a441c9bbe415frequentiscom_ Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable

Hi Steffen,=

I just uploaded versio= n 01 of draft-ietf-payload-tetra-01 which should incorporate all your input= s. Pls give it a double check.

 

Thanks a lot for your = review!

 

Br

Andreas

 

From:= payload [mailto:payload-bounces@ietf.org] On Behalf Of Schmack Steffen
Sent: Freitag, 13. Juli 2018 17:11
To: payload@ietf.org
Subject: [payload] Comment on RTP Payload Format for the TETRA Audio= Codec

 

General Comment:

This draft seems to me as a well d= efined preparation for standardization of TETRA voice signals transport via= IP networks. It addresses the current challenge of the interfacing between= radio systems and control centers.

 

Detailed Review Comments:

 

2.

TETRA: TErrestial Trunked RAdio

(>>have a look at the capita= ls)

 

3.

The TETRA codec is designed in suc= h a way that on the air

   interface two of thes= e 30ms samples are transported together (sub-

   block 1 and sub-block= 2).

(>> “these” inst= ead of “theses”)

 

Codec payload is specified for TDM= lines with 2048 kBit/s serialisation within the

   traditional circuit m= ode based TETRA system

(>>place ”traditional = circuit mode based TETRA system” at the end)

 

These two formats  differ mai= nly …

(>> usage of “differ&#= 8220; instead of “defer”)

 

5.

Note: This example shows the usage of OSTE mapping.

(>>usage of “the”= ; instead of “of”)

 

 

= Kind Regards

=  

= Steffen Schmack

=  

3D"Beschreibung: 

=  

= IABG mbH, Niederlassung Berlin

= Friedrichstra=DFe 185 / Haus E

= 10117 Berlin

=  

= Mobile:   +49 175 1902649

= e-Mail:    schmack@iabg.de

= Web:       http://www.iabg.de

 

 

 

Industrieanlagen-Betriebsgesellschaft mbH

Sitz der Gesellsch= aft: Ottobrunn, Registergericht: Amtsgericht M=FCnchen, HRB 5499
Gesch=E4ftsf=FChru= ng: Prof. Dr.-Ing. Rudolf F. Schwarz
Vorsitzender des A= ufsichtsrats: RA Engelbert Kupka MdL a.D.

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Wed, 24 Oct 2018 23:38:39 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -2.599 X-Spam-Level: X-Spam-Status: No, score=-2.599 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_LOW=-0.7, SPF_PASS=-0.001, URIBL_BLOCKED=0.001] autolearn=ham autolearn_force=no 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 BA-aNddYT8Bk for ; Wed, 24 Oct 2018 23:38:37 -0700 (PDT) Received: from huawei.com (lhrrgout.huawei.com [185.176.76.210]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 8DC1612D4E6 for ; Wed, 24 Oct 2018 23:38:37 -0700 (PDT) Received: from lhreml706-cah.china.huawei.com (unknown [172.18.7.107]) by Forcepoint Email with ESMTP id 418D9F0158C93 for ; Thu, 25 Oct 2018 07:38:31 +0100 (IST) Received: from DGGEMM424-HUB.china.huawei.com (10.1.198.41) by lhreml706-cah.china.huawei.com (10.201.108.47) with Microsoft SMTP Server (TLS) id 14.3.408.0; Thu, 25 Oct 2018 07:38:32 +0100 Received: from DGGEMM526-MBX.china.huawei.com ([169.254.8.186]) by dggemm424-hub.china.huawei.com ([10.1.198.41]) with mapi id 14.03.0399.000; Thu, 25 Oct 2018 14:38:26 +0800 From: "Roni Even (A)" To: REISENBAUER Andreas CC: "payload@ietf.org" Thread-Topic: review of draft-ietf-payload-tetra-01 Thread-Index: AdRsLVNqj+pFtr+gQayDil7xvn4xZA== Date: Thu, 25 Oct 2018 06:38:25 +0000 Message-ID: <6E58094ECC8D8344914996DAD28F1CCD130431DF@dggemm526-mbx.china.huawei.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [10.200.202.60] Content-Type: multipart/alternative; boundary="_000_6E58094ECC8D8344914996DAD28F1CCD130431DFdggemm526mbxchi_" MIME-Version: 1.0 X-CFilter-Loop: Reflected Archived-At: Subject: [payload] review of draft-ietf-payload-tetra-01 X-BeenThere: payload@ietf.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Audio/Video Transport Payloads working group discussion list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 25 Oct 2018 06:38:40 -0000 --_000_6E58094ECC8D8344914996DAD28F1CCD130431DFdggemm526mbxchi_ Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Hi Andreas, I looked at the new revision and it looks like it addresses most of the com= ments. Two comments were not addressed 1. Dave Satterlee had the following one in an email from 25.6.2018 "In sect= ion 1 (Introduction) the document says "The payload format supports transmi= ssion of multiple channels..." . It is unclear to me what this means, and w= here it is specified in the draft." 2. My comment from 28.6.2018 was not addressed "The media type definition = in section 7.1 does not include all fields from the registration template. = See section 5.6 in RFC6838 and similar payload WG RFCs " Look for the template at https://tools.ietf.org/html/rfc6838#section-5.6 an= d one of the latest payload RFCs like RFC8130 and RFC8331 Roni Even Payload WG co-chair --_000_6E58094ECC8D8344914996DAD28F1CCD130431DFdggemm526mbxchi_ Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

Hi Andreas,

I looked at the new revision and it looks like it ad= dresses most of the comments.

 

Two comments were not addressed

 

1. Dave Satterlee had the following one in an email = from 25.6.2018 “In section 1 (Introduction) the document says "T= he payload format supports transmission of multiple channels..." . It = is unclear to me what this means, and where it is specified in the draft.”

 

2.  My comment from 28.6.2018 was not addressed= “The media type definition in section = 7.1 does not include all fields from the registration template. See section= 5.6 in RFC6838 and similar payload WG RFCs “

Look for the template = at https://tools.ietf.org/html/rfc6838#section-5.6 and one of the l= atest payload RFCs like RFC8130 and RFC8331

 

 

 

Roni Even <= /span>

Payload WG co-chair



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charset="us-ascii" Content-Transfer-Encoding: quoted-printable Hi, I have looked at the new version -09 and see if it addresses my issues: On 2018-07-17 20:22, Magnus Westerlund wrote: G. Section 4.2.2.3: Are there any assumptions about the relation between repair RTP stream SSRC and the source RTP stream SSRC? The text here appears to indicate that it can be 1 (repair stream) sending retransmission packets for many source RTP streams? Can you please clarify this. Are there a point of doing this type of retransmission in a 1 to 1 fashion instead? So what I understand what got changed due to this comment was: Note that the retransmission packet corresponds only to a single source SSRC. I don't understand what this sentence means. I think you need either of two= statements to make this clear. A) When performing retransmissions of single source packets, a unique repai= r packet stream (SSRC) MUST be used for each source packet stream (SSRC) to= enable efficient handling after the first initial repair packet on each SS= RC. B) When performing retransmissions, a single repair packet stream (SSRC) MA= Y be used for retransmitting packets from multiple source packet streams (S= SRCs). I prefer A as it enables smarter processing for those who want to, but as e= ach retransmission packet are self identifying, an implementation can choce= s to basically do what B) implies, namely determine first that it is a retr= ansmission packet, then decapsulate it and restore the retransmitted packet= and then handle it as a totally new incoming packet that need to be routed= to the packet stream. A) enables an implementation freedom to do early bin= ding on the associated repair stream SSRC. H. Section 5.1: o ToP: indicates the type of protection applied by the sender: 0 for 1-D interleaved FEC protection, 1 for 1-D non-interleaved FEC protection, and 2 for 2-D parity FEC protection. The ToP value of 3 is reserved for future uses. What about retransmission only uses? And what about combinations with retransmission and other types? The change: o ToP: indicates the type of protection applied by the sender: 0 for 1-D interleaved FEC protection, 1 for 1-D non-interleaved FEC protection, 2 for 2-D parity FEC protection, and 3 for retranmission. Note spelling error in retran(s)mission! However, this enables a PT to be configured for retransmission use. It stil= l doesn't make it clear if ToP=3D0,3 would be allowed or not. I don't see a= ny problem in requiring a single value per PT. But please be explicit about= that limitation. N. Section 7: I think this section is missing the discussion of the need to signal the RTP session relation between source and repair RTP Streams. There is basically two choices here, either the repair RTP stream(s) are in the same RTP Session as the source packets, or they are in a different one. When they are in the same, it is clear that the packets carry the SSRC(s) of the source RTP packets. However, one thing is a bit unclear and could vary with implementation and that is the number of repair RTP streams in use when there are multiple source RTP streams. Are there only one repair stream, or one per source RTP stream or some other relation? So example 7.1 could be one or more source RTP stream but nothing in the signalling reveals this. Signalling context can make it clear if there is a single media source or could be more. For 7.2 there is an explicit binding between the repair and source SSRCs. I think the need and not need to explicitly indicate the source to repair stream relations. For different RTP sessions there need to be some type of RTP/RTCP out of band mechanism to indicate the relation. The use of grouping of media lines FEC semantics is very reasonable and should be made clear and probably include an example. I would prefer if the signalling requirements where discussed first, followed by SDP related mechanisms then followed by the examples of the realization. Good initial stab on the signalling requirements. 7. Signaling Requirements Out-of-band signaling should be designed to enable the receiver to identify the RTP streams associated with source packets and repair packets, respectively. At a minimum, the signaling must be designed to allow the receiver to o Determine whether one or more source RTP streams will be sent. o Determine whether one or more repair RTP streams will be sent. o Associate the appropriate SSRC's to both source and repair streams. o Clearly identify which SSRC's are associated with each source block. o Clearly identify which repair packets correspond to which source blocks. o Make use of repair packets to recover source data associated with specific SSRC's. This section provides several Sesssion Description Protocol (SDP) examples to demonstrate how these requirements can be met. Note that other approaches to RTP stream identification SHOULD NOT be used for the purposes of FLEX FEC. I think the above text is actually making the requirements stricter than ne= cessary and also beyond SDP's capability in some cases depending on its use= . There is also the fact that with flex fec and other mechanisms several of t= he above requirements are not necessary to do with out-of-band mechanisms. = For example the source stream's actually repaired are provided explicitly i= n the repair packets. What the SDP signalling really indicates are to indic= ate which media sources (m=3D lines) where repair may be used. So SSRC sign= alling is possible, but not required. So, maybe there is need for some refo= rmulation to say that what need to be possible is to indicate, but not requ= ired as sometimes the dynamic functions are used. O. Section 7: The use of draft-ietf-avtext-rid RepairedRtpStreamId is not at all needed, even if it could be used in a sub-set of applications of flexfec. It would work in same RTP Session, with a single repair RTP stream only protects a singe source RTP stream. But, considering the possibility of repair of multiple source streams and different RTP Sessions, I think an explicit statement that this SHOULD NOT be used for the payload format would be good to include. This issue does not appear to have resulted in any changes nor been comment= ed on. -- Magnus Westerlund ---------------------------------------------------------------------- Network Architecture & Protocols, Ericsson Research ---------------------------------------------------------------------- Ericsson AB | Phone +46 10 7148287 Torshamnsgatan 23 | Mobile +46 73 0949079 SE-164 80 Stockholm, Sweden | mailto: magnus.westerlund@ericsson.com ---------------------------------------------------------------------- --_000_DB7PR07MB49888CAC73A6172A435404F895F70DB7PR07MB4988eurp_ Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable
Hi,

I have looked at the new version -09 and see= if it addresses my issues:


On 2018-07-17 20:22, Magnus Westerlund wrote= :
G. Section 4.2.2.3:=0A=
=0A=
Are there any assumptions about the relation between repair RTP stream =0A=
SSRC and the source RTP stream SSRC? The text here appears to indicate =0A=
that it can be 1 (repair stream) sending retransmission packets for many =
=0A=
source RTP streams? Can you please clarify this.=0A=
=0A=
Are there a point of doing this type of retransmission in a 1 to 1 =0A=
fashion instead?


So what I understand what got changed due to this comment was:

Note that the=0A=
   retransmission packet corresponds only to a single source SSRC.=0A=
=0A=

I don't understand what this sentence means. I think you need either of = two statements to make this clear.

A) When performing retransmissions of single source packets, a unique re= pair packet stream (SSRC) MUST be used for each source packet stream (SSRC)= to enable efficient handling after the first initial repair packet on each= SSRC.

B) When performing retransmissions, a single repair packet stream (SSRC)= MAY be used for retransmitting packets from multiple source packet streams= (SSRCs).

I prefer A as it enables smarter processing for those who want to, but a= s each retransmission packet are self identifying, an implementation can ch= oces to basically do what B) implies, namely determine first that it is a r= etransmission packet, then decapsulate it and restore the retransmitted packet and then handle it as a totally ne= w incoming packet that need to be routed to the packet stream. A) enables a= n implementation freedom to do early binding on the associated repair strea= m SSRC. 


=0A=
H. Section 5.1:=0A=
=0A=
   o  ToP: indicates the type of protection applied by the sender=
: 0 for=0A=
       1-D interleaved FEC protection, 1 for 1-D n=
on-interleaved FEC=0A=
       protection, and 2 for 2-D parity FEC protec=
tion.  The ToP value of=0A=
       3 is reserved for future uses.=0A=
=0A=
What about retransmission only uses? And what about combinations with =0A=
retransmission and other types?


The change: 

   o  ToP: indicates the type of protection applied by the sender: 0 f=
or=0A=
      1-D interleaved FEC protection, 1 for 1-D non-interleaved FEC=0A=
      protection, 2 for 2-D parity FEC protection, and 3 for=0A=
      retranmission.=0A=
=0A=
Note spelling error in retran(s)mission!

However, this enables a PT to be configured for retransmission use. It s= till doesn't make it clear if ToP=3D0,3 would be allowed or not. I don't se= e any problem in requiring a single value per PT. But please be explicit ab= out that limitation.



N. Section 7:=0A=
=0A=
I think this section is missing the discussion of the need to signal the =
=0A=
RTP session relation between source and repair RTP Streams. There is =0A=
basically two choices here, either the repair RTP stream(s) are in the =0A=
same RTP Session as the source packets, or they are in a different one.=0A=
=0A=
When they are in the same, it is clear that the packets carry the =0A=
SSRC(s) of the source RTP packets. However, one thing is a bit unclear =0A=
and could vary with implementation and that is the number of repair RTP =0A=
streams in use when there are multiple source RTP streams. Are there =0A=
only one repair stream, or one per source RTP stream or some other =0A=
relation? So example 7.1 could be one or more source RTP stream but =0A=
nothing in the signalling reveals this. Signalling context can make it =0A=
clear if there is a single media source or could be more. For 7.2 there =0A=
is an explicit binding between the repair and source SSRCs.=0A=
=0A=
I think the need and not need to explicitly indicate the source to =0A=
repair stream relations.=0A=
=0A=
=0A=
For different RTP sessions there need to be some type of RTP/RTCP out of =
=0A=
band mechanism to indicate the relation.  The use of grouping of media=
 =0A=
lines FEC semantics is very reasonable and should be made clear and =0A=
probably include an example.=0A=
=0A=
I would prefer if the signalling requirements where discussed first, =0A=
followed by SDP related mechanisms then followed by the examples of the =0A=
realization.

Good initial stab on the signalling requirements. 

7.  Signaling Requirements=0A=
=0A=
   Out-of-band signaling should be designed to enable the receiver to=0A=
   identify the RTP streams associated with source packets and repair=0A=
   packets, respectively.  At a minimum, the signaling must be designed=0A=
   to allow the receiver to=0A=
=0A=
   o  Determine whether one or more source RTP streams will be sent.=0A=
=0A=
   o  Determine whether one or more repair RTP streams will be sent.=0A=
=0A=
   o  Associate the appropriate SSRC's to both source and repair=0A=
      streams.=0A=
=0A=
   o  Clearly identify which SSRC's are associated with each source=0A=
      block.=0A=
=0A=
   o  Clearly identify which repair packets correspond to which source=0A=
      blocks.=0A=
=0A=
   o  Make use of repair packets to recover source data associated with=0A=
      specific SSRC's.=0A=
=0A=
   This section provides several Sesssion Description Protocol (SDP)=0A=
   examples to demonstrate how these requirements can be met.  Note that=0A=
   other approaches to RTP stream identification SHOULD NOT be used for=0A=
   the purposes of FLEX FEC.


I think the above text is actually making the requirements stricter than= necessary and also beyond SDP's capability in some cases depending on its = use. 

There is also the fact that with flex fec and other mechanisms several o= f the above requirements are not necessary to do with out-of-band mechanism= s. For example the source stream's actually repaired are provided explicitl= y in the repair packets. What the SDP signalling really indicates are to indicate which media sources (m=3D = lines) where repair may be used. So SSRC signalling is possible, but not re= quired. So, maybe there is need for some reformulation to say that what nee= d to be possible is to indicate, but not required as sometimes the dynamic functions are used. 



=0A=
=0A=
=0A=
O. Section 7:=0A=
The use of draft-ietf-avtext-rid RepairedRtpStreamId is not at all =0A=
needed, even if it could be used in a sub-set of applications of =0A=
flexfec. It would work in same RTP Session, with a single repair RTP =0A=
stream only protects a singe source RTP stream. But, considering the =0A=
possibility of repair of multiple source streams and different RTP =0A=
Sessions, I think an explicit statement that this SHOULD NOT be used for =
=0A=
the payload format would be good to include.


This issue does not appear to have resulted in any changes nor been comm= ented on.


-- =0A=
=0A=
Magnus Westerlund =0A=
=0A=
----------------------------------------------------------------------=0A=
Network Architecture & Protocols, Ericsson Research=0A=
----------------------------------------------------------------------=0A=
Ericsson AB                 | Phone  +46 10 7148287=0A=
Torshamnsgatan 23           | Mobile +46 73 0949079=0A=
SE-164 80 Stockholm, Sweden | mailto: magnus.westerlund@ericsson.=
com=0A=
----------------------------------------------------------------------



--_000_DB7PR07MB49888CAC73A6172A435404F895F70DB7PR07MB4988eurp_--


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From: Giridhar Mandyam 
To: Magnus Westerlund , "payload@ietf.org" , "draft-ietf-payload-flexible-fec-scheme@ietf.org" 
Thread-Topic: [payload] Review of draft-ietf-payload-flexible-fec-scheme-08
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Date: Fri, 26 Oct 2018 20:12:36 +0000
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Hello Magnus,
Thank you for your continued detailed review. =20

Our apologies for not responding to you prior to posting the latest revisio=
n.  We were trying to get it uploaded prior to the submission tool closing.=
  Before posting a new revision, I would like to get confirmation from you =
on the necessary changes.

-Giri Mandyam

<-------->

Original comment:  Section 4.2.2.3: Are there any assumptions about the rel=
ation between repair RTP stream SSRC and the source RTP stream SSRC? The te=
xt here appears to indicate that it can be 1 (repair stream) sending retran=
smission packets for many source RTP streams? Can you please clarify this.

Are there a point of doing this type of retransmission in a 1 to 1 fashion =
instead?

Revised text:  "Note that the retransmission packet corresponds only to a s=
ingle source SSRC."

Feedback:  > I don't understand what this sentence means. I think you need =
either of two statements to make this clear. ...

Proposed replacement text:  "When performing retransmissions of single sour=
ce packets, a unique repair packet stream (SSRC) MUST be used for each sour=
ce packet stream (SSRC) to enable efficient handling after the first initia=
l repair packet on each SSRC."

Author's response:  Your option A) better encompassed our original intent.

<-------->

Original comment:  " o  ToP: indicates the type of protection applied by th=
e sender: ... "

What about retransmission only uses? And what about combinations with retra=
nsmission and other types?

Revised text:  "ToP: indicates the type of protection applied by the sender=
: ... 3 for retranmission"

Feedback:  > Note spelling error in retran(s)mission!  However, this enable=
s a PT to be configured for retransmission use. It still doesn't make it cl=
ear if ToP=3D0,3 would be allowed or not. I don't see any problem in requir=
ing a single value per PT. But please be explicit about that limitation.

Proposed replacement text:  Correct spelling error, and add "There can only=
 be one value listed for ToP."

Author's response:  A single value of ToP per payload type was the original=
 intent.

<-------->

Original comment:  Section 7.  I think this section is missing the discussi=
on of the need to signal the RTP session relation between source and repair=
 RTP Streams. ...

Revised text:  " Out-of-band signaling should be designed to enable the rec=
eiver to identify the RTP streams associated with source packets and repair=
 packets, respectively.  ..."

Feedback:  > I think the above text is actually making the requirements str=
icter than necessary and also beyond SDP's capability in some cases dependi=
ng on its use.

Proposed replacement text:  Eliminate " Note that other approaches to RTP s=
tream identification SHOULD NOT be used for the purposes of FLEX FEC." in r=
evision

Author's response:  Agree that original text is overly restrictive.



-----Original Message-----
From: Magnus Westerlund =20
Sent: Thursday, October 25, 2018 5:34 AM
To: payload@ietf.org; draft-ietf-payload-flexible-fec-scheme@ietf.org
Subject: Re: [payload] Review of draft-ietf-payload-flexible-fec-scheme-08

Hi,

I have looked at the new version -09 and see if it addresses my issues:


On 2018-07-17 20:22, Magnus Westerlund wrote:

G. Section 4.2.2.3:

Are there any assumptions about the relation between repair RTP stream SSRC=
 and the source RTP stream SSRC? The text here appears to indicate that it =
can be 1 (repair stream) sending retransmission packets for many source RTP=
 streams? Can you please clarify this.

Are there a point of doing this type of retransmission in a 1 to 1 fashion =
instead?


So what I understand what got changed due to this comment was:

Note that the
   retransmission packet corresponds only to a single source SSRC.



I don't understand what this sentence means. I think you need either of two=
 statements to make this clear.

A) When performing retransmissions of single source packets, a unique repai=
r packet stream (SSRC) MUST be used for each source packet stream (SSRC) to=
 enable efficient handling after the first initial repair packet on each SS=
RC.

B) When performing retransmissions, a single repair packet stream (SSRC) MA=
Y be used for retransmitting packets from multiple source packet streams (S=
SRCs).

I prefer A as it enables smarter processing for those who want to, but as e=
ach retransmission packet are self identifying, an implementation can choce=
s to basically do what B) implies, namely determine first that it is a retr=
ansmission packet, then decapsulate it and restore the retransmitted packet=
 and then handle it as a totally new incoming packet that need to be routed=
 to the packet stream. A) enables an implementation freedom to do early bin=
ding on the associated repair stream SSRC.



H. Section 5.1:

   o  ToP: indicates the type of protection applied by the sender: 0 for
       1-D interleaved FEC protection, 1 for 1-D non-interleaved FEC
       protection, and 2 for 2-D parity FEC protection.  The ToP value of
       3 is reserved for future uses.

What about retransmission only uses? And what about combinations with retra=
nsmission and other types?


The change:

   o  ToP: indicates the type of protection applied by the sender: 0 for
      1-D interleaved FEC protection, 1 for 1-D non-interleaved FEC
      protection, 2 for 2-D parity FEC protection, and 3 for
      retranmission.



Note spelling error in retran(s)mission!


However, this enables a PT to be configured for retransmission use. It stil=
l doesn't make it clear if ToP=3D0,3 would be allowed or not. I don't see a=
ny problem in requiring a single value per PT. But please be explicit about=
 that limitation.



N. Section 7:

I think this section is missing the discussion of the need to signal the RT=
P session relation between source and repair RTP Streams. There is basicall=
y two choices here, either the repair RTP stream(s) are in the same RTP Ses=
sion as the source packets, or they are in a different one.

When they are in the same, it is clear that the packets carry the
SSRC(s) of the source RTP packets. However, one thing is a bit unclear and =
could vary with implementation and that is the number of repair RTP streams=
 in use when there are multiple source RTP streams. Are there only one repa=
ir stream, or one per source RTP stream or some other relation? So example =
7.1 could be one or more source RTP stream but nothing in the signalling re=
veals this. Signalling context can make it clear if there is a single media=
 source or could be more. For 7.2 there is an explicit binding between the =
repair and source SSRCs.

I think the need and not need to explicitly indicate the source to repair s=
tream relations.


For different RTP sessions there need to be some type of RTP/RTCP out of ba=
nd mechanism to indicate the relation.  The use of grouping of media lines =
FEC semantics is very reasonable and should be made clear and probably incl=
ude an example.

I would prefer if the signalling requirements where discussed first, follow=
ed by SDP related mechanisms then followed by the examples of the realizati=
on.

Good initial stab on the signalling requirements.

7.  Signaling Requirements

   Out-of-band signaling should be designed to enable the receiver to
   identify the RTP streams associated with source packets and repair
   packets, respectively.  At a minimum, the signaling must be designed
   to allow the receiver to

   o  Determine whether one or more source RTP streams will be sent.

   o  Determine whether one or more repair RTP streams will be sent.

   o  Associate the appropriate SSRC's to both source and repair
      streams.

   o  Clearly identify which SSRC's are associated with each source
      block.

   o  Clearly identify which repair packets correspond to which source
      blocks.

   o  Make use of repair packets to recover source data associated with
      specific SSRC's.

   This section provides several Sesssion Description Protocol (SDP)
   examples to demonstrate how these requirements can be met.  Note that
   other approaches to RTP stream identification SHOULD NOT be used for
   the purposes of FLEX FEC.


I think the above text is actually making the requirements stricter than ne=
cessary and also beyond SDP's capability in some cases depending on its use


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From: REISENBAUER Andreas 
To: Andreas Ahland , "payload@ietf.org" 
Thread-Topic: Comments for RTP Payload Format for the TETRA Audio Codec
Thread-Index: AdQEqoxULyfORiHgTUOj3c7djfCvqhqSrrRA
Date: Sun, 28 Oct 2018 19:41:52 +0000
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From: REISENBAUER Andreas 
To: "Dave Satterlee (Vocal)" , "payload@ietf.org" 
Thread-Topic: [payload] WGLC on draft-ietf-payload-tetra-00
Thread-Index: AQHUDJgWWkvhsui+hkWwqE9W/rhMI6U11M0w
Date: Sun, 28 Oct 2018 19:49:35 +0000
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Hi Dave,
Thanks for your first review - just realized I did not yet address this asp=
ect yet - sorry.

You are entirely right - originally there have been some ideas to propagate=
 multi-channel payload which was refused in a very early stage already but =
we did not update the intro chapter.

So I simply remove this item from the enumeration with the next version. Is=
 this OK for you?

All the best
Andreas

From: payload [mailto:payload-bounces@ietf.org] On Behalf Of Dave Satterlee=
 (Vocal)
Sent: Montag, 25. Juni 2018 17:17
To: payload@ietf.org
Subject: Re: [payload] WGLC on draft-ietf-payload-tetra-00

Review Comments for:

 RTP Payload Format for the TETRA Audio Codec
 draft-ietf-payload-tetra-00

June 25, 2018 by
David Satterlee
David.Satterlee@vocal.com

The draft appears to be generally well specified and useful.

Review Comments:

In section 1 (Introduction) the document says "The payload format supports =
transmission of multiple channels..." . It is unclear to me what this means=
, and where it is specified in the draft.

There are a number of non-technical issues (grammatical etc.).  I believe t=
ype of review is for a later stage, but I can make some recommendations on =
that aspect as well if needed.




Regards,
Dave Satterlee
VOCAL Technologies



On 6/19/2018 1:17 AM, Roni Even (A) wrote:
WG,

We are starting WGLC for https://tools.ietf.org/html/draft-ietf-payload-tet=
ra-00 . Please review the draft and send your comments to the list by July =
10th . If you read the draft but you have no comments, say so as well.

There were already some comments on the mailing list and we can consider th=
em as part of the WGLC comments

Roni Even (A) Payload WG co-chair


--_000_0cdeab65441f4b69b64e95d68d42445cfrequentiscom_
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Hi Dave,


Thanks for your first rev=
iew – just realized I did not yet address this aspect yet – sor=
ry.


 <=
/p>

You are entirely right &#=
8211; originally there have been some ideas to propagate multi-channel payl=
oad which was refused in a very early stage already but we did
 not update the intro chapter.


 <=
/p>

So I simply remove this i=
tem from the enumeration with the next version. Is this OK for you?


 <=
/p>

All the best


Andreas=



 <=
/p>





From:=
 payload [mailto:pay=
load-bounces@ietf.org]
On Behalf Of Dave Satterlee (Vocal)

Sent: Montag, 25. Juni 2018 17:17

To: payload@ietf.org

Subject: Re: [payload] WGLC on draft-ietf-payload-tetra-00






 




Review Comments for:

 

 RTP Payload Format for the TETRA Audio Codec

 draft-ietf-payload-tetra-00

 

June 25, 2018 by

David Satterlee

David.Satterlee@vocal.com<=
br>
 

The draft appears to be generally well specified and useful.

 

Review Comments:



In section 1 (Introduction) the document says "The payload format supp=
orts transmission of multiple channels..." . It is unclear to me what =
this means, and where it is specified in the draft.



There are a number of non-technical issues (grammatical etc.).  I beli=
eve type of review is for a later stage, but I can make some recommendation=
s on that aspect as well if needed.






 


  

Regards,

Dave Satterlee

VOCAL Technologies







On 6/19/2018 1:17 AM, Roni Even (A) wrote:






WG,


 


We are starting WGLC for
https:/=
/tools.ietf.org/html/draft-ietf-payload-tetra-00 . Please review the dr=
aft and send your comments to the list by July 10th . If you rea=
d the draft but you have no comments,
 say so as well.


 


There were already some comments on the=
 mailing list and we can consider them as part of the WGLC comments<=
o:p>


 


Roni Even (A) Payload WG co-chair




 






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From: REISENBAUER Andreas 
To: "Roni Even (A)" 
CC: "payload@ietf.org" 
Thread-Topic: review of draft-ietf-payload-tetra-01
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Hi Roni,
Thanks a lot for your hints

I am now working on a draft-ietf-payload-tetra-03 which considers:

*         Dave Satterlee's first comment

*         Your comments (extending section 7.1)

*         And Andreas Ahland's comment from June 16th I also did not addres=
s til now

May I ask you to have a quick check of what is "work in progress" on sectio=
n 7.1? I think I got RFC6838 now - was more struggling with tooling (indent=
 level) then content
   Type name:
      audio
   Subtype name:
      TETRA
   Required parameters:
      none
   Optional parameters:
      These parameters apply to RTP transfer only.

      *  maxptime: The maximum amount of media which can be encapsulated
         in a payload packet, expressed as time in milliseconds.  The
         time is calculated as the sum of the time that the media
         present in the packet represents.  The time SHOULD be an
         integer multiple of the frame size.  If this parameter is not
         present, the sender MAY encapsulate any number of speech frames
         into one RTP packet.
      *  ptime: see RFC 4566 [RFC4566].
   Encoding considerations:
      This media type is framed and binary according Section 4.8 of RFC
      6838 [RFC6838].
   Security considerations:
      See Section Section 10 of RFC XXXX.  [RFC Editor: Upon publication
      as an RFC, please replace "XXXX" with the number assigned to this
      document and remove this note.]

   Interoperability considerations: N/A

   Published specification:
      RFC XXXX [RFC Editor: Upon publication as an RFC, please replace
      "XXXX" with the number assigned to this document and remove this
      note.]
   Applications that use this media type:
      This media type is used in applications needing transport or
      storage of encoded voice.  Some examples include; Voice over IP,
      streaming media, voice messaging, and voice recording on recording
      systems.

   Additional Information:

                - Deprecated alias names for this type: N/A
                - Magic number(s): N/A
                - File extension(s): N/A
                - Macintosh file type code(s): N/A

   Person & email address to contact for further information:
      Andreas Reisenbauer 
      IETF Payload Working Group 
   Intended usage:
      COMMON
   Restrictions on usage:
      This media type depends on RTP framing and hence is only defined
      for transfer via RTP RFC 3550 [RFC3550].  Transport within other
      framing protocols is not defined at this time.
   Author:
      Andreas Reisenbauer 
   Change controller:
      The IETF PAYLOAD Working Group, or other party as designated by
      the IESG.

If OK for you (and the others as I sent pm), I would generate a version 03 =
of this draft very soon.
Do you think this approach is appropriate?

Many thanks in advance and all the best
Andreas

From: Roni Even (A) [mailto:roni.even@huawei.com]
Sent: Donnerstag, 25. Oktober 2018 08:38
To: REISENBAUER Andreas
Cc: payload@ietf.org
Subject: review of draft-ietf-payload-tetra-01

Hi Andreas,
I looked at the new revision and it looks like it addresses most of the com=
ments.

Two comments were not addressed

1. Dave Satterlee had the following one in an email from 25.6.2018 "In sect=
ion 1 (Introduction) the document says "The payload format supports transmi=
ssion of multiple channels..." . It is unclear to me what this means, and w=
here it is specified in the draft."

2.  My comment from 28.6.2018 was not addressed "The media type definition =
in section 7.1 does not include all fields from the registration template. =
See section 5.6 in RFC6838 and similar payload WG RFCs "
Look for the template at https://tools.ietf.org/html/rfc6838#section-5.6 an=
d one of the latest payload RFCs like RFC8130 and RFC8331



Roni Even
Payload WG co-chair


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Hi Roni,


Thanks a lot for your =
hints


 


I am now working on a =
draft-ietf-payload-tetra-03 which considers:


·        
Dave Satterlee=
’s first comment


·        
Your comments =
(extending section 7.1)


·        
And Andreas Ah=
land’s comment from June 16th I also did not address til n=
ow


 


May I ask you to have =
a quick check of what is “work in progress” on section 7.1? I t=
hink I got RFC6838 now – was more struggling with tooling (indent lev=
el) then content


=
&nbs=
p;  Type name:


=
&nbs=
p;     audio


=
&nbs=
p;  Subtype name:


=
&nbs=
p;     TETRA


=
&nbs=
p;  Required parameters:


=
&nbs=
p;     none


=
&nbs=
p;  Optional parameters:


=
&nbs=
p;     These parameters apply to RTP transfer only.


=
 


=
&nbs=
p;     *  maxptime: The maximum amount of media wh=
ich can be encapsulated


=
&nbs=
p;        in a payload packet, expressed=
 as time in milliseconds.  The


=
&nbs=
p;        time is calculated as the sum =
of the time that the media


=
&nbs=
p;        present in the packet represen=
ts.  The time SHOULD be an


=
&nbs=
p;        integer multiple of the frame =
size.  If this parameter is not


=
&nbs=
p;        present, the sender MAY encaps=
ulate any number of speech frames


=
&nbs=
p;        into one RTP packet.


=
&nbs=
p;     *  ptime: see RFC 4566 [RFC4566].


=
&nbs=
p;  Encoding considerations:


=
&nbs=
p;     This media type is framed and binary according S=
ection 4.8 of RFC


=
&nbs=
p;     6838 [RFC6838].


=
&nbs=
p;  Security considerations:


=
&nbs=
p;     See Section Section 10 of RFC XXXX.  [RFC E=
ditor: Upon publication


=
&nbs=
p;     as an RFC, please replace "XXXX" with =
the number assigned to this


=
&nbs=
p;     document and remove this note.]


=
 


=
&nbs=
p;  Interoperability considerations: N/A


=
 


=
&nbs=
p;  Published specification:


=
&nbs=
p;     RFC XXXX [RFC Editor: Upon publication as an RFC=
, please replace


=
&nbs=
p;     "XXXX" with the number assigned to thi=
s document and remove this


=
&nbs=
p;     note.]


=
&nbs=
p;  Applications that use this media type:


=
&nbs=
p;     This media type is used in applications needing =
transport or


=
&nbs=
p;     storage of encoded voice.  Some examples in=
clude; Voice over IP,


=
&nbs=
p;     streaming media, voice messaging, and voice reco=
rding on recording


=
&nbs=
p;     systems.


=
 


=
&nbs=
p;  Additional Information:


=
 


=
&nbs=
p;            &=
nbsp;  - Deprecated alias names for this type: N/A


=
&nbs=
p;            &=
nbsp;  - Magic number(s): N/A


=
&nbs=
p;            &=
nbsp;  - File extension(s): N/A


=
&nbs=
p;            &=
nbsp;  - Macintosh file type code(s): N/A


=
 


=
&nbs=
p;  Person & email address to contact for further information:


=
&nbs=
p;    
Andreas Reisenbauer <mailto:andreas.reisenbauer=
@frequentis.com>


=
     
IETF Payload Working Group <mailto:payload@ietf.org>


=
&nbs=
p;  Intended usage:


=
&nbs=
p;     COMMON


=
&nbs=
p;  Restrictions on usage:


=
&nbs=
p;     This media type depends on RTP framing and hence=
 is only defined


=
&nbs=
p;     for transfer via RTP RFC 3550 [RFC3550].  T=
ransport within other


=
&nbs=
p;     framing protocols is not defined at this time.


=
&nbs=
p;  Author:


=
&nbs=
p;     Andreas Reisenbauer <mailto:andreas.reisenbau=
er@frequentis.com>


=
&nbs=
p;  Change controller:


=
&nbs=
p;     The IETF PAYLOAD Working Group, or other party a=
s designated by


    =
  the IESG.


 


If OK for you (and the=
 others as I sent pm), I would generate a version 03 of this draft very soo=
n.



Do you think this appr=
oach is appropriate?


 


Many thanks in advance=
 and all the best


Andreas


 






From: Roni Even (A) [mailto:roni.even@huawei.com]


Sent: Donnerstag, 25. Oktober 2018 08:38

To: REISENBAUER Andreas

Cc: payload@ietf.org

Subject: review of draft-ietf-payload-tetra-01






 


Hi Andreas,

I looked at the new revision an=
d it looks like it addresses most of the comments.


 


Two comments were not addressed=



 


1. Dave Satterlee had the follo=
wing one in an email from 25.6.2018 “In section 1 (Introduction) the =
document says "The payload format supports transmission of multiple ch=
annels..." . It is unclear to me what this means,
 and where it is specified in the draft.”


 


2.  My comment from 28.6.2=
018 was not addressed “The media type d=
efinition in section 7.1 does not include all fields from the registration =
template. See section 5.6 in RFC6838 and similar
 payload WG RFCs “


Look fo=
r the template at
https://tools.i=
etf.org/html/rfc6838#section-5.6 and one of=
 the latest payload RFCs like RFC8130 and RFC8331


&n=
bsp;


&n=
bsp;


&n=
bsp;


Roni Ev=
en 


Payload=
 WG co-chair


=
 






--_000_41c599ef1e8042f489b34a627ab2c45ffrequentiscom_--


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From: "Roni Even (A)" 
To: REISENBAUER Andreas 
CC: "payload@ietf.org" 
Thread-Topic: review of draft-ietf-payload-tetra-01
Thread-Index: AdRsLVNqj+pFtr+gQayDil7xvn4xZACyiEQAABdfHsA=
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Subject: Re: [payload] review of draft-ietf-payload-tetra-01
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Hi Andreas,
Looks good just small typo change

Restrictions on usage:
      This media type depends on RTP framing and hence is only defined
      for transfer via RTP RFC 3550 [RFC3550].  Transport within other
      framing protocols is not defined at this time.

Should be "This media subtype ....."

Roni

From: REISENBAUER Andreas [mailto:Andreas.Reisenbauer@frequentis.com]
Sent: Sunday, October 28, 2018 9:58 PM
To: Roni Even (A)
Cc: payload@ietf.org
Subject: RE: review of draft-ietf-payload-tetra-01

Hi Roni,
Thanks a lot for your hints

I am now working on a draft-ietf-payload-tetra-03 which considers:

*         Dave Satterlee's first comment

*         Your comments (extending section 7.1)

*         And Andreas Ahland's comment from June 16th I also did not addres=
s til now

May I ask you to have a quick check of what is "work in progress" on sectio=
n 7.1? I think I got RFC6838 now - was more struggling with tooling (indent=
 level) then content
   Type name:
      audio
   Subtype name:
      TETRA
   Required parameters:
      none
   Optional parameters:
      These parameters apply to RTP transfer only.

      *  maxptime: The maximum amount of media which can be encapsulated
         in a payload packet, expressed as time in milliseconds.  The
         time is calculated as the sum of the time that the media
         present in the packet represents.  The time SHOULD be an
         integer multiple of the frame size.  If this parameter is not
         present, the sender MAY encapsulate any number of speech frames
         into one RTP packet.
      *  ptime: see RFC 4566 [RFC4566].
   Encoding considerations:
      This media type is framed and binary according Section 4.8 of RFC
      6838 [RFC6838].
   Security considerations:
      See Section Section 10 of RFC XXXX.  [RFC Editor: Upon publication
      as an RFC, please replace "XXXX" with the number assigned to this
      document and remove this note.]

   Interoperability considerations: N/A

   Published specification:
      RFC XXXX [RFC Editor: Upon publication as an RFC, please replace
      "XXXX" with the number assigned to this document and remove this
      note.]
   Applications that use this media type:
      This media type is used in applications needing transport or
      storage of encoded voice.  Some examples include; Voice over IP,
      streaming media, voice messaging, and voice recording on recording
      systems.

   Additional Information:

                - Deprecated alias names for this type: N/A
                - Magic number(s): N/A
                - File extension(s): N/A
                - Macintosh file type code(s): N/A

   Person & email address to contact for further information:
      Andreas Reisenbauer 
      IETF Payload Working Group 
   Intended usage:
      COMMON
   Restrictions on usage:
      This media type depends on RTP framing and hence is only defined
      for transfer via RTP RFC 3550 [RFC3550].  Transport within other
      framing protocols is not defined at this time.
   Author:
      Andreas Reisenbauer 
   Change controller:
      The IETF PAYLOAD Working Group, or other party as designated by
      the IESG.

If OK for you (and the others as I sent pm), I would generate a version 03 =
of this draft very soon.
Do you think this approach is appropriate?

Many thanks in advance and all the best
Andreas

From: Roni Even (A) [mailto:roni.even@huawei.com]
Sent: Donnerstag, 25. Oktober 2018 08:38
To: REISENBAUER Andreas
Cc: payload@ietf.org
Subject: review of draft-ietf-payload-tetra-01

Hi Andreas,
I looked at the new revision and it looks like it addresses most of the com=
ments.

Two comments were not addressed

1. Dave Satterlee had the following one in an email from 25.6.2018 "In sect=
ion 1 (Introduction) the document says "The payload format supports transmi=
ssion of multiple channels..." . It is unclear to me what this means, and w=
here it is specified in the draft."

2.  My comment from 28.6.2018 was not addressed "The media type definition =
in section 7.1 does not include all fields from the registration template. =
See section 5.6 in RFC6838 and similar payload WG RFCs "
Look for the template at https://tools.ietf.org/html/rfc6838#section-5.6 an=
d one of the latest payload RFCs like RFC8130 and RFC8331



Roni Even
Payload WG co-chair


--_000_6E58094ECC8D8344914996DAD28F1CCD1304396Bdggemm526mbxchi_
Content-Type: text/html; charset="us-ascii"
Content-Transfer-Encoding: quoted-printable











Hi Andreas,=



Looks good just small =
typo change


 


Restrictions on usage:


      This media type depends on RTP fram=
ing and hence is only defined


      for transfer via RTP RFC 3550 [RFC3=
550].  Transport within other


      framing protocols is not defined at=
 this time.


&n=
bsp;


Should =
be “This media subtype …..”


&n=
bsp;


Roni


 






From: REISENBA=
UER Andreas [mailto:Andreas.Reisenbauer@frequentis.com]


Sent: Sunday, October 28, 2018 9:58 PM

To: Roni Even (A)

Cc: payload@ietf.org

Subject: RE: review of draft-ietf-payload-tetra-01=







 


Hi Roni=
,


Thanks =
a lot for your hints


&n=
bsp;


I am no=
w working on a draft-ietf-payload-tetra-03 which considers:


·      &=
nbsp; 
Dave Satterlee’s first comment


·      &=
nbsp; 
Your comments (extending section 7.1)<=
/span>


·      &=
nbsp; 
And Andreas Ahland’s comment from June 16th I also did not address til now


&n=
bsp;


May I a=
sk you to have a quick check of what is “work in progress” on s=
ection 7.1? I think I got RFC6838 now – was more struggling with tool=
ing (indent level) then content


   Type name:


      audio


   Subtype name:


      TETRA


   Required parameters:


      none


   Optional parameters:


      These parameters apply to RTP trans=
fer only.


 


      *  maxptime: The maximum amoun=
t of media which can be encapsulated


         in a payload pack=
et, expressed as time in milliseconds.  The


         time is calculate=
d as the sum of the time that the media


         present in the pa=
cket represents.  The time SHOULD be an


         integer multiple =
of the frame size.  If this parameter is not


         present, the send=
er MAY encapsulate any number of speech frames


         into one RTP pack=
et.


      *  ptime: see RFC 4566 [RFC456=
6].


   Encoding considerations:


      This media type is framed and binar=
y according Section 4.8 of RFC


      6838 [RFC6838].


   Security considerations:


      See Section Section 10 of RFC XXXX.=
  [RFC Editor: Upon publication


      as an RFC, please replace "XXX=
X" with the number assigned to this


      document and remove this note.]


 


   Interoperability considerations: N/A


 


   Published specification:


      RFC XXXX [RFC Editor: Upon publicat=
ion as an RFC, please replace


      "XXXX" with the number as=
signed to this document and remove this


      note.]


   Applications that use this media type:


      This media type is used in applicat=
ions needing transport or


      storage of encoded voice.  Som=
e examples include; Voice over IP,


      streaming media, voice messaging, a=
nd voice recording on recording


      systems.


 


   Additional Information:


 


           =
     - Deprecated alias names for this type: N/A


           =
     - Magic number(s): N/A


           =
     - File extension(s): N/A


           =
     - Macintosh file type code(s): N/A


 


   Person & email address to contact for further inf=
ormation:


     
Andreas Reisenbauer <mailto:andreas.reisenbauer@frequentis.com&g=
t;


     
IETF Payload Working Group <mailto:payload@ietf.org>


   Intended usage:


      COMMON


   Restrictions on usage:


      This media type depends on RTP fram=
ing and hence is only defined


      for transfer via RTP RFC 3550 [RFC3=
550].  Transport within other


      framing protocols is not defined at=
 this time.


   Author:


      Andreas Reisenbauer <mailto:andreas.reisenbauer@frequ=
entis.com>


   Change controller:


      The IETF PAYLOAD Working Group, or =
other party as designated by


  =
;    the IESG.


&n=
bsp;


If OK f=
or you (and the others as I sent pm), I would generate a version 03 of this=
 draft very soon.



Do you =
think this approach is appropriate?


&n=
bsp;


Many th=
anks in advance and all the best


Andreas=



&n=
bsp;



 


Hi Andreas,


I looked at the new revision and it looks like it ad=
dresses most of the comments.


 


Two comments were not addressed


 


1. Dave Satterlee had the following one in an email =
from 25.6.2018 “In section 1 (Introduction) the document says "T=
he payload format supports transmission of multiple channels..." . It =
is unclear to me what this means, and where it is
 specified in the draft.”


 


2.  My comment from 28.6.2018 was not addressed=
 “The media type definition in section =
7.1 does not include all fields from the registration template. See section=
 5.6 in RFC6838 and similar payload WG RFCs “


Look for the template =
at 
https://tools.ietf.org/html/rfc6838#section-5.6 and one of the l=
atest payload RFCs like RFC8130 and RFC8331


 


 


 


Roni Even <=
/span>


Payload WG co-chair


 






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From: Andreas Ahland 
To: REISENBAUER Andreas , "payload@ietf.org" 
Thread-Topic: Comments for RTP Payload Format for the TETRA Audio Codec
Thread-Index: AdQEqoxULyfORiHgTUOj3c7djfCvqhqSrrRAAB5O8HA=
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--_005_dc84984838bb4d8089455824f23fbdf7selectricde_--


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From: Magnus Westerlund 
To: Giridhar Mandyam , "payload@ietf.org" , "draft-ietf-payload-flexible-fec-scheme@ietf.org" 
Thread-Topic: [payload] Review of draft-ietf-payload-flexible-fec-scheme-08
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Date: Wed, 31 Oct 2018 10:01:21 +0000
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Subject: Re: [payload] Review of draft-ietf-payload-flexible-fec-scheme-08
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On 2018-10-26 22:12, Giridhar Mandyam wrote:=0A=
> Hello Magnus,=0A=
> Thank you for your continued detailed review.  =0A=
>=0A=
> Our apologies for not responding to you prior to posting the latest revis=
ion.  We were trying to get it uploaded prior to the submission tool closin=
g.  Before posting a new revision, I would like to get confirmation from yo=
u on the necessary changes.=0A=
>=0A=
> -Giri Mandyam=0A=
>=0A=
> <-------->=0A=
>=0A=
> Original comment:  Section 4.2.2.3: Are there any assumptions about the r=
elation between repair RTP stream SSRC and the source RTP stream SSRC? The =
text here appears to indicate that it can be 1 (repair stream) sending retr=
ansmission packets for many source RTP streams? Can you please clarify this=
.=0A=
>=0A=
> Are there a point of doing this type of retransmission in a 1 to 1 fashio=
n instead?=0A=
>=0A=
> Revised text:  "Note that the retransmission packet corresponds only to a=
 single source SSRC."=0A=
>=0A=
> Feedback:  > I don't understand what this sentence means. I think you nee=
d either of two statements to make this clear. ...=0A=
>=0A=
> Proposed replacement text:  "When performing retransmissions of single so=
urce packets, a unique repair packet stream (SSRC) MUST be used for each so=
urce packet stream (SSRC) to enable efficient handling after the first init=
ial repair packet on each SSRC."=0A=
>=0A=
> Author's response:  Your option A) better encompassed our original intent=
.=0A=
=0A=
That is fine with me. I think it allows RTP steram level handling of the=0A=
repair streams relation to the source stream.=0A=
=0A=
=0A=
>=0A=
> <-------->=0A=
>=0A=
> Original comment:  " o  ToP: indicates the type of protection applied by =
the sender: ... "=0A=
>=0A=
> What about retransmission only uses? And what about combinations with ret=
ransmission and other types?=0A=
>=0A=
> Revised text:  "ToP: indicates the type of protection applied by the send=
er: ... 3 for retranmission"=0A=
>=0A=
> Feedback:  > Note spelling error in retran(s)mission!  However, this enab=
les a PT to be configured for retransmission use. It still doesn't make it =
clear if ToP=3D0,3 would be allowed or not. I don't see any problem in requ=
iring a single value per PT. But please be explicit about that limitation.=
=0A=
>=0A=
> Proposed replacement text:  Correct spelling error, and add "There can on=
ly be one value listed for ToP."=0A=
>=0A=
> Author's response:  A single value of ToP per payload type was the origin=
al intent.=0A=
=0A=
Fine, that makes usage visible on RTP level, rather than inside RTP=0A=
payload.=0A=
=0A=
=0A=
>=0A=
> <-------->=0A=
>=0A=
> Original comment:  Section 7.  I think this section is missing the discus=
sion of the need to signal the RTP session relation between source and repa=
ir RTP Streams. ...=0A=
>=0A=
> Revised text:  " Out-of-band signaling should be designed to enable the r=
eceiver to identify the RTP streams associated with source packets and repa=
ir packets, respectively.  ..."=0A=
>=0A=
> Feedback:  > I think the above text is actually making the requirements s=
tricter than necessary and also beyond SDP's capability in some cases depen=
ding on its use.=0A=
>=0A=
> Proposed replacement text:  Eliminate " Note that other approaches to RTP=
 stream identification SHOULD NOT be used for the purposes of FLEX FEC." in=
 revision=0A=
>=0A=
> Author's response:  Agree that original text is overly restrictive.=0A=
=0A=
=0A=
Ok.=0A=
=0A=
=0A=
Appears that then things are resolved. Looking forward to the update=0A=
then. So then I am expecting a new version early next week when the=0A=
submission has opened again.=0A=
=0A=
=0A=
Cheers=0A=
=0A=
=0A=
Magnus=0A=
=0A=
=0A=
>=0A=
>=0A=
>=0A=
> -----Original Message-----=0A=
> From: Magnus Westerlund  =0A=
> Sent: Thursday, October 25, 2018 5:34 AM=0A=
> To: payload@ietf.org; draft-ietf-payload-flexible-fec-scheme@ietf.org=0A=
> Subject: Re: [payload] Review of draft-ietf-payload-flexible-fec-scheme-0=
8=0A=
>=0A=
> Hi,=0A=
>=0A=
> I have looked at the new version -09 and see if it addresses my issues:=
=0A=
>=0A=
>=0A=
> On 2018-07-17 20:22, Magnus Westerlund wrote:=0A=
>=0A=
> G. Section 4.2.2.3:=0A=
>=0A=
> Are there any assumptions about the relation between repair RTP stream SS=
RC and the source RTP stream SSRC? The text here appears to indicate that i=
t can be 1 (repair stream) sending retransmission packets for many source R=
TP streams? Can you please clarify this.=0A=
>=0A=
> Are there a point of doing this type of retransmission in a 1 to 1 fashio=
n instead?=0A=
>=0A=
>=0A=
> So what I understand what got changed due to this comment was:=0A=
>=0A=
> Note that the=0A=
>    retransmission packet corresponds only to a single source SSRC.=0A=
>=0A=
>=0A=
>=0A=
> I don't understand what this sentence means. I think you need either of t=
wo statements to make this clear.=0A=
>=0A=
> A) When performing retransmissions of single source packets, a unique rep=
air packet stream (SSRC) MUST be used for each source packet stream (SSRC) =
to enable efficient handling after the first initial repair packet on each =
SSRC.=0A=
>=0A=
> B) When performing retransmissions, a single repair packet stream (SSRC) =
MAY be used for retransmitting packets from multiple source packet streams =
(SSRCs).=0A=
>=0A=
> I prefer A as it enables smarter processing for those who want to, but as=
 each retransmission packet are self identifying, an implementation can cho=
ces to basically do what B) implies, namely determine first that it is a re=
transmission packet, then decapsulate it and restore the retransmitted pack=
et and then handle it as a totally new incoming packet that need to be rout=
ed to the packet stream. A) enables an implementation freedom to do early b=
inding on the associated repair stream SSRC.=0A=
>=0A=
>=0A=
>=0A=
> H. Section 5.1:=0A=
>=0A=
>    o  ToP: indicates the type of protection applied by the sender: 0 for=
=0A=
>        1-D interleaved FEC protection, 1 for 1-D non-interleaved FEC=0A=
>        protection, and 2 for 2-D parity FEC protection.  The ToP value of=
=0A=
>        3 is reserved for future uses.=0A=
>=0A=
> What about retransmission only uses? And what about combinations with ret=
ransmission and other types?=0A=
>=0A=
>=0A=
> The change:=0A=
>=0A=
>    o  ToP: indicates the type of protection applied by the sender: 0 for=
=0A=
>       1-D interleaved FEC protection, 1 for 1-D non-interleaved FEC=0A=
>       protection, 2 for 2-D parity FEC protection, and 3 for=0A=
>       retranmission.=0A=
>=0A=
>=0A=
>=0A=
> Note spelling error in retran(s)mission!=0A=
>=0A=
>=0A=
> However, this enables a PT to be configured for retransmission use. It st=
ill doesn't make it clear if ToP=3D0,3 would be allowed or not. I don't see=
 any problem in requiring a single value per PT. But please be explicit abo=
ut that limitation.=0A=
>=0A=
>=0A=
>=0A=
> N. Section 7:=0A=
>=0A=
> I think this section is missing the discussion of the need to signal the =
RTP session relation between source and repair RTP Streams. There is basica=
lly two choices here, either the repair RTP stream(s) are in the same RTP S=
ession as the source packets, or they are in a different one.=0A=
>=0A=
> When they are in the same, it is clear that the packets carry the=0A=
> SSRC(s) of the source RTP packets. However, one thing is a bit unclear an=
d could vary with implementation and that is the number of repair RTP strea=
ms in use when there are multiple source RTP streams. Are there only one re=
pair stream, or one per source RTP stream or some other relation? So exampl=
e 7.1 could be one or more source RTP stream but nothing in the signalling =
reveals this. Signalling context can make it clear if there is a single med=
ia source or could be more. For 7.2 there is an explicit binding between th=
e repair and source SSRCs.=0A=
>=0A=
> I think the need and not need to explicitly indicate the source to repair=
 stream relations.=0A=
>=0A=
>=0A=
> For different RTP sessions there need to be some type of RTP/RTCP out of =
band mechanism to indicate the relation.  The use of grouping of media line=
s FEC semantics is very reasonable and should be made clear and probably in=
clude an example.=0A=
>=0A=
> I would prefer if the signalling requirements where discussed first, foll=
owed by SDP related mechanisms then followed by the examples of the realiza=
tion.=0A=
>=0A=
> Good initial stab on the signalling requirements.=0A=
>=0A=
> 7.  Signaling Requirements=0A=
>=0A=
>    Out-of-band signaling should be designed to enable the receiver to=0A=
>    identify the RTP streams associated with source packets and repair=0A=
>    packets, respectively.  At a minimum, the signaling must be designed=
=0A=
>    to allow the receiver to=0A=
>=0A=
>    o  Determine whether one or more source RTP streams will be sent.=0A=
>=0A=
>    o  Determine whether one or more repair RTP streams will be sent.=0A=
>=0A=
>    o  Associate the appropriate SSRC's to both source and repair=0A=
>       streams.=0A=
>=0A=
>    o  Clearly identify which SSRC's are associated with each source=0A=
>       block.=0A=
>=0A=
>    o  Clearly identify which repair packets correspond to which source=0A=
>       blocks.=0A=
>=0A=
>    o  Make use of repair packets to recover source data associated with=
=0A=
>       specific SSRC's.=0A=
>=0A=
>    This section provides several Sesssion Description Protocol (SDP)=0A=
>    examples to demonstrate how these requirements can be met.  Note that=
=0A=
>    other approaches to RTP stream identification SHOULD NOT be used for=
=0A=
>    the purposes of FLEX FEC.=0A=
>=0A=
>=0A=
> I think the above text is actually making the requirements stricter than =
necessary and also beyond SDP's capability in some cases depending on its u=
se=0A=
>=0A=
=0A=
-- =0A=
=0A=
Magnus Westerlund =0A=
=0A=
----------------------------------------------------------------------=0A=
Network Architecture & Protocols, Ericsson Research=0A=
----------------------------------------------------------------------=0A=
Ericsson AB                 | Phone  +46 10 7148287=0A=
Torshamnsgatan 23           | Mobile +46 73 0949079=0A=
SE-164 80 Stockholm, Sweden | mailto: magnus.westerlund@ericsson.com=0A=
----------------------------------------------------------------------=0A=
=0A=