From nobody Tue Jan 3 07:21:09 2017 Return-Path: X-Original-To: avtext@ietf.org Delivered-To: avtext@ietfa.amsl.com Received: from ietfa.amsl.com (localhost [IPv6:::1]) by ietfa.amsl.com (Postfix) with ESMTP id E129A129622; Tue, 3 Jan 2017 07:21:01 -0800 (PST) MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit From: "Alissa Cooper" To: "The IESG" X-Test-IDTracker: no X-IETF-IDTracker: 6.40.3 Auto-Submitted: auto-generated Precedence: bulk Message-ID: <148345686189.28031.14791337633720893080.idtracker@ietfa.amsl.com> Date: Tue, 03 Jan 2017 07:21:01 -0800 Archived-At: Cc: avtext@ietf.org, draft-ietf-avtext-avpf-ccm-layered@ietf.org, avtext-chairs@ietf.org Subject: [avtext] Alissa Cooper's Yes on draft-ietf-avtext-avpf-ccm-layered-03: (with COMMENT) X-BeenThere: avtext@ietf.org X-Mailman-Version: 2.1.17 List-Id: Audio/Video Transport Extensions working group discussion list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 03 Jan 2017 15:21:02 -0000 Alissa Cooper has entered the following ballot position for draft-ietf-avtext-avpf-ccm-layered-03: Yes When responding, please keep the subject line intact and reply to all email addresses included in the To and CC lines. (Feel free to cut this introductory paragraph, however.) Please refer to https://www.ietf.org/iesg/statement/discuss-criteria.html for more information about IESG DISCUSS and COMMENT positions. The document, along with other ballot positions, can be found here: https://datatracker.ietf.org/doc/draft-ietf-avtext-avpf-ccm-layered/ ---------------------------------------------------------------------- COMMENT: ---------------------------------------------------------------------- - Section 5: s/dependent from each other/dependent on each other/ - Section 6: The formulation "the authors' current understanding" seems a bit out of place for a document that is a product of a WG/the IETF; perhaps "based on current information" or some such would be better. From nobody Wed Jan 4 15:45:52 2017 Return-Path: X-Original-To: avtext@ietf.org Delivered-To: avtext@ietfa.amsl.com Received: from ietfa.amsl.com (localhost [IPv6:::1]) by ietfa.amsl.com (Postfix) with ESMTP id 03EC71295DE; Wed, 4 Jan 2017 15:45:48 -0800 (PST) MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit From: "Stephen Farrell" To: "The IESG" X-Test-IDTracker: no X-IETF-IDTracker: 6.40.3 Auto-Submitted: auto-generated Precedence: bulk Message-ID: <148357354798.13064.3619231717176653828.idtracker@ietfa.amsl.com> Date: Wed, 04 Jan 2017 15:45:47 -0800 Archived-At: Cc: avtext@ietf.org, draft-ietf-avtext-avpf-ccm-layered@ietf.org, avtext-chairs@ietf.org Subject: [avtext] Stephen Farrell's No Objection on draft-ietf-avtext-avpf-ccm-layered-03: (with COMMENT) X-BeenThere: avtext@ietf.org X-Mailman-Version: 2.1.17 List-Id: Audio/Video Transport Extensions working group discussion list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 04 Jan 2017 23:45:48 -0000 Stephen Farrell has entered the following ballot position for draft-ietf-avtext-avpf-ccm-layered-03: No Objection When responding, please keep the subject line intact and reply to all email addresses included in the To and CC lines. (Feel free to cut this introductory paragraph, however.) Please refer to https://www.ietf.org/iesg/statement/discuss-criteria.html for more information about IESG DISCUSS and COMMENT positions. The document, along with other ballot positions, can be found here: https://datatracker.ietf.org/doc/draft-ietf-avtext-avpf-ccm-layered/ ---------------------------------------------------------------------- COMMENT: ---------------------------------------------------------------------- - MRST, MRMT, SRST - expand on 1st use please, not sure if there are more of those too - Just checking: I assume when "repairing" something, that requires the same security properties be maintained or re-established and that there's no bidding down attack here that e.g. a middlebox could mount here? 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charset="utf-8" Content-ID: <543C1AC4C452804696A5CCD831078B24@namprd17.prod.outlook.com> Content-Transfer-Encoding: base64 MIME-Version: 1.0 X-OriginatorOrg: stewe.org X-MS-Exchange-CrossTenant-originalarrivaltime: 05 Jan 2017 00:09:20.8881 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 865fc51c-5fae-4322-98ef-0121a85df0b6 X-MS-Exchange-Transport-CrossTenantHeadersStamped: BL2PR17MB0771 Archived-At: Cc: "avtext@ietf.org" , "draft-ietf-avtext-avpf-ccm-layered@ietf.org" , "avtext-chairs@ietf.org" Subject: Re: [avtext] Stephen Farrell's No Objection on draft-ietf-avtext-avpf-ccm-layered-03: (with COMMENT) X-BeenThere: avtext@ietf.org X-Mailman-Version: 2.1.17 Precedence: list List-Id: Audio/Video Transport Extensions working group discussion list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 05 Jan 2017 00:09:26 -0000 SGkgU3RlcGhlbiwgDQpwbGVhc2Ugc2VlIGlubGluZS4NClN0ZXBoYW4NCg0KDQoNCg0KT24gMS80 LzE3LCAxNTo0NSwgIlN0ZXBoZW4gRmFycmVsbCIgPHN0ZXBoZW4uZmFycmVsbEBjcy50Y2QuaWU+ IHdyb3RlOg0KDQo+U3RlcGhlbiBGYXJyZWxsIGhhcyBlbnRlcmVkIHRoZSBmb2xsb3dpbmcgYmFs bG90IHBvc2l0aW9uIGZvcg0KPmRyYWZ0LWlldGYtYXZ0ZXh0LWF2cGYtY2NtLWxheWVyZWQtMDM6 IE5vIE9iamVjdGlvbg0KPg0KPldoZW4gcmVzcG9uZGluZywgcGxlYXNlIGtlZXAgdGhlIHN1Ympl Y3QgbGluZSBpbnRhY3QgYW5kIHJlcGx5IHRvIGFsbA0KPmVtYWlsIGFkZHJlc3NlcyBpbmNsdWRl ZCBpbiB0aGUgVG8gYW5kIENDIGxpbmVzLiAoRmVlbCBmcmVlIHRvIGN1dCB0aGlzDQo+aW50cm9k dWN0b3J5IHBhcmFncmFwaCwgaG93ZXZlci4pDQo+DQo+DQo+UGxlYXNlIHJlZmVyIHRvIGh0dHBz Oi8vd3d3LmlldGYub3JnL2llc2cvc3RhdGVtZW50L2Rpc2N1c3MtY3JpdGVyaWEuaHRtbA0KPmZv ciBtb3JlIGluZm9ybWF0aW9uIGFib3V0IElFU0cgRElTQ1VTUyBhbmQgQ09NTUVOVCBwb3NpdGlv bnMuDQo+DQo+DQo+VGhlIGRvY3VtZW50LCBhbG9uZyB3aXRoIG90aGVyIGJhbGxvdCBwb3NpdGlv bnMsIGNhbiBiZSBmb3VuZCBoZXJlOg0KPmh0dHBzOi8vZGF0YXRyYWNrZXIuaWV0Zi5vcmcvZG9j L2RyYWZ0LWlldGYtYXZ0ZXh0LWF2cGYtY2NtLWxheWVyZWQvDQo+DQo+DQo+DQo+LS0tLS0tLS0t LS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0t LS0tLQ0KPkNPTU1FTlQ6DQo+LS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0t LS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLQ0KPg0KPg0KPi0gTVJTVCwgTVJNVCwgU1JT VCAtIGV4cGFuZCBvbiAxc3QgdXNlIHBsZWFzZSwgbm90IHN1cmUNCj5pZiB0aGVyZSBhcmUgbW9y ZSBvZiB0aG9zZSB0b28NCg0KSSBhbHNvIGhvcGUgdGhlcmUgYXJlIG5vIG90aGVyIGFjcm9ueW1z IG5vdCBzcGVsbGVkIG91dC4gIEEgcXVpY2sgY2hlY2sgZGlkIG5vdCByZXZlYWwgYW55Lg0KVGhl IHRocmVlIGFjcm9ueW1zIHlvdSBtZW50aW9uIGV4cGFuZCBwZXIgc2VjdGlvbiAzLjcgb2YgUkZD IDc2NTYpIGFzIGZvbGxvd3M6DQogDQogICBTUlNUOiAgU2luZ2xlIFJUUCBzdHJlYW0gb24gYSBT aW5nbGUgbWVkaWEgVHJhbnNwb3J0DQoNCiAgIE1SU1Q6ICBNdWx0aXBsZSBSVFAgc3RyZWFtcyBv biBhIFNpbmdsZSBtZWRpYSBUcmFuc3BvcnQNCg0KICAgTVJNVDogIE11bHRpcGxlIFJUUCBzdHJl YW1zIG9uIE11bHRpcGxlIG1lZGlhIFRyYW5zcG9ydHMNCg0KDQpBbnlvbmUgc3R1ZHlpbmcgc3Bl Y3MgcmVsYXRlZCB0byBsYXllcmVkIGNvZGVjIHRyYW5zcG9ydCBvdmVyIFJUUCBzaG91bGQgYmUg ZmFtaWxpYXIgd2l0aCB0aG9zZSwgYnV0IEkgZG9u4oCZdCBtaW5kIHNwZWxsaW5nIHRoZW0gb3V0 IGVpdGhlci4gIFJGQyBlZGl0b3LigJlzIG5vdGU/DQoNCj4NCj4tIEp1c3QgY2hlY2tpbmc6IEkg YXNzdW1lIHdoZW4gInJlcGFpcmluZyIgc29tZXRoaW5nLA0KPnRoYXQgcmVxdWlyZXMgdGhlIHNh bWUgc2VjdXJpdHkgcHJvcGVydGllcyBiZQ0KPm1haW50YWluZWQgb3IgcmUtZXN0YWJsaXNoZWQg YW5kIHRoYXQgdGhlcmUncyBubw0KPmJpZGRpbmcgZG93biBhdHRhY2sgaGVyZSB0aGF0IGUuZy4g YSBtaWRkbGVib3ggDQo+Y291bGQgbW91bnQgaGVyZT8NCg0KVGhlIHdvcmQg4oCccmVwYWly4oCd IGlzIHVzZWQgaW4gdGhlIGNvbnRleHQgb2Yg4oCcc291cmNlIGNvZGluZyBzcGVjaWZpYyBtZWFu c+KAnS4gIFRoYXQgbWVhbnMgdGhhdCB0aGUgc291cmNlIGVuY29kZXIgbWFuaXB1bGF0ZXMgdGhl IGNvZGVkIGJpdHN0cmVhbSBpbiBzdWNoIGEgd2F5IHRoYXQgdGhlIHByb2JsZW0gaXMgc29sdmVk LiAgRm9yIGFuZCBhZG1pdHRlZGx5IGNydWRlIGV4YW1wbGUsIGludHJvZHVjaW5nIGludHJhIG1h Y3JvYmxvY2tzIG9yIHBpY3R1cmUgKHRoYXQgZG8gbm90IGRlcGVuZCBvbiBwcmV2aW91cyBkZWNv ZGVkIHBpY3R1cmVzKSBpbnN0ZWFkIG9mIGludGVyIG1hY3JvYmxvY2tzIG9yIHBpY3R1cmVzICh3 aGljaCBkbykgY29uc3RpdHV0ZSBzb3VyY2UgY29kaW5nIHNwZWNpZmljIG1lYW5zLiAgRG9pbmcg c28gaXMgdHJhbnNwYXJlbnQgdG8gYWxsIHByb3RvY29sIGxheWVycyBvdGhlciB0aGFuIHRoZSB2 aWRlbyBlbmNvZGluZyBhbmQgZGVjb2RpbmcuICBUaGUgcmVwYWlyIGluZm9ybWF0aW9uIGlzIGlu Y2x1ZGVkIGluIHRoZSBzYW1lIFJUUCBzZXNzaW9uIGFzIHRoZSByZWd1bGFyIG1lZGlhIGZsb3cs IGFuZCBoYXMgdGhlIHNhbWUgc2VjdXJpdHkgcHJvcGVydGllcy4gIFNvIHllcywgSSBzZWUgbm8g b3B0aW9uIGZvciBhIGJpZC1kb3duIGF0dGFjay4gDQoNCg0KPg0KPg0K From nobody Wed Jan 4 16:11:31 2017 Return-Path: X-Original-To: avtext@ietfa.amsl.com Delivered-To: avtext@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id CFADE129449; 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charset="utf-8" Content-ID: <8ABB35B20641024E86143B46B1C0D243@namprd17.prod.outlook.com> Content-Transfer-Encoding: base64 MIME-Version: 1.0 X-OriginatorOrg: stewe.org X-MS-Exchange-CrossTenant-originalarrivaltime: 05 Jan 2017 00:11:22.8265 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 865fc51c-5fae-4322-98ef-0121a85df0b6 X-MS-Exchange-Transport-CrossTenantHeadersStamped: BL2PR17MB0771 Archived-At: Cc: "avtext@ietf.org" , "draft-ietf-avtext-avpf-ccm-layered@ietf.org" , "avtext-chairs@ietf.org" Subject: Re: [avtext] Alissa Cooper's Yes on draft-ietf-avtext-avpf-ccm-layered-03: (with COMMENT) X-BeenThere: avtext@ietf.org X-Mailman-Version: 2.1.17 Precedence: list List-Id: Audio/Video Transport Extensions working group discussion list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 05 Jan 2017 00:11:27 -0000 SGkgQWxpc3NhLA0KVGhvc2UgY2hhbmdlcyBiZWxvdyBjYW4gYmUgdGFrZW4gY2FyZSBvZiBieSB0 aGUgUkZDIGVkaXRvciwgbm8/DQpUaGFua3MsDQpTdGVwaGFuDQoNCg0KDQoNCg0KT24gMS8zLzE3 LCAwNzoyMSwgIkFsaXNzYSBDb29wZXIiIDxhbGlzc2FAY29vcGVydy5pbj4gd3JvdGU6DQoNCj5B bGlzc2EgQ29vcGVyIGhhcyBlbnRlcmVkIHRoZSBmb2xsb3dpbmcgYmFsbG90IHBvc2l0aW9uIGZv cg0KPmRyYWZ0LWlldGYtYXZ0ZXh0LWF2cGYtY2NtLWxheWVyZWQtMDM6IFllcw0KPg0KPldoZW4g cmVzcG9uZGluZywgcGxlYXNlIGtlZXAgdGhlIHN1YmplY3QgbGluZSBpbnRhY3QgYW5kIHJlcGx5 IHRvIGFsbA0KPmVtYWlsIGFkZHJlc3NlcyBpbmNsdWRlZCBpbiB0aGUgVG8gYW5kIENDIGxpbmVz LiAoRmVlbCBmcmVlIHRvIGN1dCB0aGlzDQo+aW50cm9kdWN0b3J5IHBhcmFncmFwaCwgaG93ZXZl ci4pDQo+DQo+DQo+UGxlYXNlIHJlZmVyIHRvIGh0dHBzOi8vd3d3LmlldGYub3JnL2llc2cvc3Rh dGVtZW50L2Rpc2N1c3MtY3JpdGVyaWEuaHRtbA0KPmZvciBtb3JlIGluZm9ybWF0aW9uIGFib3V0 IElFU0cgRElTQ1VTUyBhbmQgQ09NTUVOVCBwb3NpdGlvbnMuDQo+DQo+DQo+VGhlIGRvY3VtZW50 LCBhbG9uZyB3aXRoIG90aGVyIGJhbGxvdCBwb3NpdGlvbnMsIGNhbiBiZSBmb3VuZCBoZXJlOg0K Pmh0dHBzOi8vZGF0YXRyYWNrZXIuaWV0Zi5vcmcvZG9jL2RyYWZ0LWlldGYtYXZ0ZXh0LWF2cGYt Y2NtLWxheWVyZWQvDQo+DQo+DQo+DQo+LS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0t LS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLQ0KPkNPTU1FTlQ6DQo+LS0tLS0t LS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0t LS0tLS0tLQ0KPg0KPi0gU2VjdGlvbiA1OiBzL2RlcGVuZGVudCBmcm9tIGVhY2ggb3RoZXIvZGVw ZW5kZW50IG9uIGVhY2ggb3RoZXIvDQo+DQo+LSBTZWN0aW9uIDY6IFRoZSBmb3JtdWxhdGlvbiAi dGhlIGF1dGhvcnMnIGN1cnJlbnQgdW5kZXJzdGFuZGluZyIgc2VlbXMgYQ0KPmJpdCBvdXQgb2Yg cGxhY2UgZm9yIGEgZG9jdW1lbnQgdGhhdCBpcyBhIHByb2R1Y3Qgb2YgYSBXRy90aGUgSUVURjsN Cj5wZXJoYXBzICJiYXNlZCBvbiBjdXJyZW50IGluZm9ybWF0aW9uIiBvciBzb21lIHN1Y2ggd291 bGQgYmUgYmV0dGVyLg0KPg0KPg0K From nobody Wed Jan 4 16:14:07 2017 Return-Path: X-Original-To: avtext@ietfa.amsl.com Delivered-To: avtext@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 28B3D129477; 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Thu, 5 Jan 2017 00:14:01 +0000 (GMT) X-Virus-Scanned: Debian amavisd-new at scss.tcd.ie Received: from mercury.scss.tcd.ie ([127.0.0.1]) by localhost (mercury.scss.tcd.ie [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id ua52aZMaMOzj; Thu, 5 Jan 2017 00:13:58 +0000 (GMT) Received: from [10.87.48.210] (95-45-153-252-dynamic.agg2.phb.bdt-fng.eircom.net [95.45.153.252]) by mercury.scss.tcd.ie (Postfix) with ESMTPSA id D5D0BBE2C; Thu, 5 Jan 2017 00:13:57 +0000 (GMT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=cs.tcd.ie; s=mail; t=1483575238; bh=Fr0dUU3QupmMsPjz6Uvz3QltS25Nx2yR6+8q4FA3U+M=; h=Subject:To:References:Cc:From:Date:In-Reply-To:From; b=Y7fOTzHWI+ovis9Y5CNIYCfhEUlkCFmFfmoUGJBozYNXtubGJpcHawCNCGBnDgb+4 kdRYrtDk9M9YdkWtifrws0zyi9/7ZotJbmOf8t++e61oe33Wwxalgf5GibqYf4iUZP 38C9hBhhqJSJuu4jHA9PmP0I931h+/k2c/xT0XXA= To: Stephan Wenger , The IESG References: <148357354798.13064.3619231717176653828.idtracker@ietfa.amsl.com> <99200953-B049-41C6-AC64-CD32A0A59632@stewe.org> From: Stephen Farrell Openpgp: id=D66EA7906F0B897FB2E97D582F3C8736805F8DA2; url= Message-ID: Date: Thu, 5 Jan 2017 00:13:57 +0000 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Thunderbird/45.5.1 MIME-Version: 1.0 In-Reply-To: <99200953-B049-41C6-AC64-CD32A0A59632@stewe.org> Content-Type: multipart/signed; protocol="application/pkcs7-signature"; micalg=sha-256; boundary="------------ms030408070101070907010904" Archived-At: Cc: "draft-ietf-avtext-avpf-ccm-layered@ietf.org" , "avtext@ietf.org" , "avtext-chairs@ietf.org" Subject: Re: [avtext] Stephen Farrell's No Objection on draft-ietf-avtext-avpf-ccm-layered-03: (with COMMENT) X-BeenThere: avtext@ietf.org X-Mailman-Version: 2.1.17 Precedence: list List-Id: Audio/Video Transport Extensions working group discussion list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 05 Jan 2017 00:14:06 -0000 This is a cryptographically signed message in MIME format. --------------ms030408070101070907010904 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Thanks Stefan, That's all good, S. On 05/01/17 00:09, Stephan Wenger wrote: > Hi Stephen,=20 > please see inline. > Stephan >=20 >=20 >=20 >=20 > On 1/4/17, 15:45, "Stephen Farrell" wrote: >=20 >> Stephen Farrell has entered the following ballot position for >> draft-ietf-avtext-avpf-ccm-layered-03: No Objection >> >> When responding, please keep the subject line intact and reply to all >> email addresses included in the To and CC lines. (Feel free to cut thi= s >> introductory paragraph, however.) >> >> >> Please refer to https://www.ietf.org/iesg/statement/discuss-criteria.h= tml >> for more information about IESG DISCUSS and COMMENT positions. >> >> >> The document, along with other ballot positions, can be found here: >> https://datatracker.ietf.org/doc/draft-ietf-avtext-avpf-ccm-layered/ >> >> >> >> ----------------------------------------------------------------------= >> COMMENT: >> ----------------------------------------------------------------------= >> >> >> - MRST, MRMT, SRST - expand on 1st use please, not sure >> if there are more of those too >=20 > I also hope there are no other acronyms not spelled out. A quick check= did not reveal any. > The three acronyms you mention expand per section 3.7 of RFC 7656) as f= ollows: > =20 > SRST: Single RTP stream on a Single media Transport >=20 > MRST: Multiple RTP streams on a Single media Transport >=20 > MRMT: Multiple RTP streams on Multiple media Transports >=20 >=20 > Anyone studying specs related to layered codec transport over RTP shoul= d be familiar with those, but I don=E2=80=99t mind spelling them out eith= er. RFC editor=E2=80=99s note? >=20 >> >> - Just checking: I assume when "repairing" something, >> that requires the same security properties be >> maintained or re-established and that there's no >> bidding down attack here that e.g. a middlebox=20 >> could mount here? >=20 > The word =E2=80=9Crepair=E2=80=9D is used in the context of =E2=80=9Cso= urce coding specific means=E2=80=9D. That means that the source encoder = manipulates the coded bitstream in such a way that the problem is solved.= For and admittedly crude example, introducing intra macroblocks or pict= ure (that do not depend on previous decoded pictures) instead of inter ma= croblocks or pictures (which do) constitute source coding specific means.= Doing so is transparent to all protocol layers other than the video enc= oding and decoding. The repair information is included in the same RTP s= ession as the regular media flow, and has the same security properties. = So yes, I see no option for a bid-down attack.=20 >=20 >=20 >> >> --------------ms030408070101070907010904 Content-Type: application/pkcs7-signature; name="smime.p7s" Content-Transfer-Encoding: base64 Content-Disposition: attachment; filename="smime.p7s" Content-Description: S/MIME Cryptographic Signature MIAGCSqGSIb3DQEHAqCAMIACAQExDzANBglghkgBZQMEAgEFADCABgkqhkiG9w0BBwEAAKCC CvIwggUIMIID8KADAgECAhBPzaE7pzYviUJyhmHTFBdnMA0GCSqGSIb3DQEBCwUAMHUxCzAJ BgNVBAYTAklMMRYwFAYDVQQKEw1TdGFydENvbSBMdGQuMSkwJwYDVQQLEyBTdGFydENvbSBD ZXJ0aWZpY2F0aW9uIEF1dGhvcml0eTEjMCEGA1UEAxMaU3RhcnRDb20gQ2xhc3MgMSBDbGll bnQgQ0EwHhcNMTYwMjA5MDkyODE1WhcNMTcwMjA5MDkyODE1WjBOMSIwIAYDVQQDDBlzdGVw aGVuLmZhcnJlbGxAY3MudGNkLmllMSgwJgYJKoZIhvcNAQkBFhlzdGVwaGVuLmZhcnJlbGxA Y3MudGNkLmllMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAtuC0rYze/2JinSra 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avtext@ietfa.amsl.com Delivered-To: avtext@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 0998512946D for ; Wed, 4 Jan 2017 16:37:52 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -5 X-Spam-Level: X-Spam-Status: No, score=-5 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, RP_MATCHES_RCVD=-3.1] 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 uOgNYMvGI-oY for ; Wed, 4 Jan 2017 16:37:50 -0800 (PST) Received: from nostrum.com (raven-v6.nostrum.com [IPv6:2001:470:d:1130::1]) (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 98770129477 for ; Wed, 4 Jan 2017 16:37:50 -0800 (PST) Received: from [10.0.1.39] (cpe-66-25-7-22.tx.res.rr.com [66.25.7.22]) (authenticated bits=0) by nostrum.com (8.15.2/8.15.2) with ESMTPSA id v050bmhf006985 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NO); Wed, 4 Jan 2017 18:37:49 -0600 (CST) (envelope-from ben@nostrum.com) X-Authentication-Warning: raven.nostrum.com: Host cpe-66-25-7-22.tx.res.rr.com [66.25.7.22] claimed to be [10.0.1.39] From: "Ben Campbell" To: "Stephan Wenger" Date: Wed, 04 Jan 2017 18:37:48 -0600 Message-ID: <5EBFEDAB-938D-4543-9C80-EBF4D4CFEA95@nostrum.com> In-Reply-To: <6BC41D4B-577B-4A9B-AA59-CFADBC50D8DF@stewe.org> References: <148345686189.28031.14791337633720893080.idtracker@ietfa.amsl.com> <6BC41D4B-577B-4A9B-AA59-CFADBC50D8DF@stewe.org> MIME-Version: 1.0 Content-Type: text/plain; format=flowed X-Mailer: MailMate (1.9.6r5319) Archived-At: Cc: "draft-ietf-avtext-avpf-ccm-layered@ietf.org" , "avtext-chairs@ietf.org" , "avtext@ietf.org" , The IESG Subject: Re: [avtext] Alissa Cooper's Yes on draft-ietf-avtext-avpf-ccm-layered-03: (with COMMENT) X-BeenThere: avtext@ietf.org X-Mailman-Version: 2.1.17 Precedence: list List-Id: Audio/Video Transport Extensions working group discussion list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 05 Jan 2017 00:37:52 -0000 On 4 Jan 2017, at 18:11, Stephan Wenger wrote: > Hi Alissa, > Those changes below can be taken care of by the RFC editor, no? Hi Stephan, I think that's probably true for Alissa's first comment, but if we want the RFC editor to take care of the second we will need to provide the specific change in an RFC editor note. Thanks! Ben. > Thanks, > Stephan > > > > > > On 1/3/17, 07:21, "Alissa Cooper" wrote: > >> Alissa Cooper has entered the following ballot position for >> draft-ietf-avtext-avpf-ccm-layered-03: Yes >> >> When responding, please keep the subject line intact and reply to all >> email addresses included in the To and CC lines. (Feel free to cut >> this >> introductory paragraph, however.) >> >> >> Please refer to >> https://www.ietf.org/iesg/statement/discuss-criteria.html >> for more information about IESG DISCUSS and COMMENT positions. >> >> >> The document, along with other ballot positions, can be found here: >> https://datatracker.ietf.org/doc/draft-ietf-avtext-avpf-ccm-layered/ >> >> >> >> ---------------------------------------------------------------------- >> COMMENT: >> ---------------------------------------------------------------------- >> >> - Section 5: s/dependent from each other/dependent on each other/ >> >> - Section 6: The formulation "the authors' current understanding" >> seems a >> bit out of place for a document that is a product of a WG/the IETF; >> perhaps "based on current information" or some such would be better. >> >> From nobody Fri Jan 6 16:27:45 2017 Return-Path: X-Original-To: avtext@ietfa.amsl.com Delivered-To: avtext@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id A1F68129422; 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a=rsa-sha256; c=relaxed/relaxed; d=steweorg.onmicrosoft.com; s=selector1-stewe-org; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version; bh=92jS+U6oF+T+48DLJEtBvA4OWoUC7pGK+oR1jt0D8jw=; b=xDA0YDRU1dTqKLoYD89+vpC8uHklNmLgsMOj/RJoWaKjYPJ46O6GC1UrQQ8ke0dfhKxWTf6DJufyUwYxtL4a7MUWRQr+Wmx9NYIeJIMJz4Z0uZUM2BQZKpRTaAVQSvGlUuVFq2NSw5ALmP9WN0pOg3Vci4HiJWac3NQPGCjbHBs= Received: from BL2PR17MB0771.namprd17.prod.outlook.com (10.167.118.143) by BL2PR17MB0771.namprd17.prod.outlook.com (10.167.118.143) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384_P384) id 15.1.817.10; Sat, 7 Jan 2017 00:27:40 +0000 Received: from BL2PR17MB0771.namprd17.prod.outlook.com ([10.167.118.143]) by BL2PR17MB0771.namprd17.prod.outlook.com ([10.167.118.143]) with mapi id 15.01.0817.012; Sat, 7 Jan 2017 00:27:40 +0000 From: Stephan Wenger To: Alissa Cooper Thread-Topic: Alissa Cooper's Yes on draft-ietf-avtext-avpf-ccm-layered-03: (with COMMENT) Thread-Index: AQHSZdUAe/z1Aip1hEKoGt20aQyOpqErp+wA Date: Sat, 7 Jan 2017 00:27:39 +0000 Message-ID: <3459D45E-8B32-4D33-82F2-E439DA6B9E66@stewe.org> References: <148345686189.28031.14791337633720893080.idtracker@ietfa.amsl.com> In-Reply-To: <148345686189.28031.14791337633720893080.idtracker@ietfa.amsl.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: authentication-results: spf=none (sender IP is ) smtp.mailfrom=stewe@stewe.org; 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charset="utf-8" Content-ID: <8F05158CC944B248B0D6F56F6480FB0E@namprd17.prod.outlook.com> Content-Transfer-Encoding: base64 MIME-Version: 1.0 X-OriginatorOrg: stewe.org X-MS-Exchange-CrossTenant-originalarrivaltime: 07 Jan 2017 00:27:39.6699 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 865fc51c-5fae-4322-98ef-0121a85df0b6 X-MS-Exchange-Transport-CrossTenantHeadersStamped: BL2PR17MB0771 Archived-At: Cc: "avtext@ietf.org" , "draft-ietf-avtext-avpf-ccm-layered@ietf.org" , "avtext-chairs@ietf.org" Subject: Re: [avtext] Alissa Cooper's Yes on draft-ietf-avtext-avpf-ccm-layered-03: (with COMMENT) X-BeenThere: avtext@ietf.org X-Mailman-Version: 2.1.17 Precedence: list List-Id: Audio/Video Transport Extensions working group discussion list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 07 Jan 2017 00:27:43 -0000 SGkgQWxpc3NhLA0KSSByZW1vdmVkIHRoZSBJRVNHIGV4cGxvZGVyLg0KUGxlYXNlIHNlZSBiZWxv dyBpbmxpbmUuDQpTdGVwaGFuDQoNCg0KDQpPbiAxLzMvMTcsIDA3OjIxLCAiQWxpc3NhIENvb3Bl ciIgPGFsaXNzYUBjb29wZXJ3LmluPiB3cm90ZToNCg0KPlvigKZdDQo+LS0tLS0tLS0tLS0tLS0t LS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLQ0K PkNPTU1FTlQ6DQo+LS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0t LS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLQ0KPg0KPi0gU2VjdGlvbiA1OiBzL2RlcGVuZGVudCBm cm9tIGVhY2ggb3RoZXIvZGVwZW5kZW50IG9uIGVhY2ggb3RoZXIvDQoNCkRvbmUuDQoNCj4NCj4t IFNlY3Rpb24gNjogVGhlIGZvcm11bGF0aW9uICJ0aGUgYXV0aG9ycycgY3VycmVudCB1bmRlcnN0 YW5kaW5nIiBzZWVtcyBhDQo+Yml0IG91dCBvZiBwbGFjZSBmb3IgYSBkb2N1bWVudCB0aGF0IGlz IGEgcHJvZHVjdCBvZiBhIFdHL3RoZSBJRVRGOw0KPnBlcmhhcHMgImJhc2VkIG9uIGN1cnJlbnQg aW5mb3JtYXRpb24iIG9yIHNvbWUgc3VjaCB3b3VsZCBiZSBiZXR0ZXIuDQoNCk15IHN1Z2dlc3Rp b24gdG8gYWRkcmVzcyB0aGlzIGlzc3VlIGlzIHRvIHNpbXBseSByZW1vdmUg4oCcYXV0aG9yc+KA meKAnS4gIFRoaXMgd291bGQgbGVhZCB0byBjaGFuZ2VzIHNpbWlsYXIgdG8gdGhlIGZvbGxvd2lu ZzoNCg0KT0xEOg0KVGhlIGF1dGhvcnPigJkgY3VycmVudCB1bmRlcnN0YW5kaW5nIGlzIHRoYXQg dGhlIHBydWRlbnQgcmVzcG9uc2UgdG8gYSBTTEkgbWVzc2FnZSByZWNlaXZlZCBb4oCmXQ0KDQoN Ck5FVzoNClRoZSBjdXJyZW50IHVuZGVyc3RhbmRpbmcgaXMgdGhhdCB0aGUgcHJ1ZGVudCByZXNw b25zZSB0byBhIFNMSSBtZXNzYWdlIHJlY2VpdmVkIFvigKZdLg0KDQpJIHRoaW5rIHRoYXQgaXMg bGVzcyBjbHVtc3kgdGhhbiDigJxCYXNlZCBvbiBjdXJyZW50IGluZm9ybWF0aW9uLCB0aGUgY3Vy cmVudCB1bmRlcnN0YW5kaW5nIGlzIHRoYXQgdGhlIHBydWRlbnQgcmVzcG9uc2UgdG8gYSBTTEkg bWVzc2FnZSByZWNlaXZlZCBb4oCmXeKAnS4gIEkgdGhpbmsgaXTigJlzIGFsc28gbW9yZSBjb3Jy ZWN0IHRoYW4g4oCcQmFzZWQgb24gY3VycmVudCBpbmZvcm1hdGlvbiwgdGhlIHBydWRlbnQgcmVz cG9uc2UgdG8gYSBTTEkgbWVzc2FnZSByZWNlaXZlZCBb4oCmXeKAnSwgYmVjYXVzZSB0aGVyZSBh Y3R1YWxseSBpcyBzb21ldGhpbmcgbGlrZSBhbiB1bmRlcnN0YW5kaW5nIGludm9sdmVkIGluIGNy ZWF0aW5nIHRoZSByZWNvbW1lbmRhdGlvbi0tdGhlIOKAnHBydWRlbnQgcmVzcG9uc2XigJ0gY2Fu bm90IGJlIGRpcmVjdGx5IGRlcml2ZWQgZnJvbSBjdXJyZW50IGluZm9ybWF0aW9uLg0KDQpEb2Vz IHRoaXMgYWRkcmVzcyB5b3VyIGNvbmNlcm4/DQoNClRoYW5rcywNClN0ZXBoYW4NCiANCg0KPg0K Pg0K From nobody Tue Jan 10 08:52:09 2017 Return-Path: X-Original-To: avtext@ietf.org Delivered-To: avtext@ietfa.amsl.com Received: from ietfa.amsl.com (localhost [IPv6:::1]) by ietfa.amsl.com (Postfix) with ESMTP id 8551C129410; Tue, 10 Jan 2017 08:52:08 -0800 (PST) MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit From: internet-drafts@ietf.org To: X-Test-IDTracker: no X-IETF-IDTracker: 6.40.3 Auto-Submitted: auto-generated Precedence: bulk Message-ID: <148406712853.22238.1169974753994453457.idtracker@ietfa.amsl.com> Date: Tue, 10 Jan 2017 08:52:08 -0800 Archived-At: Cc: avtext@ietf.org Subject: [avtext] I-D Action: draft-ietf-avtext-avpf-ccm-layered-04.txt X-BeenThere: avtext@ietf.org X-Mailman-Version: 2.1.17 List-Id: Audio/Video Transport Extensions working group discussion list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 10 Jan 2017 16:52:08 -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 Extensions of the IETF. Title : Using Codec Control Messages in the RTP Audio-Visual Profile with Feedback with Layered Codecs Authors : Stephan Wenger Jonathan Lennox Bo Burman Magnus Westerlund Filename : draft-ietf-avtext-avpf-ccm-layered-04.txt Pages : 11 Date : 2017-01-10 Abstract: This document updates RFC5104 by fixing a shortcoming in the specification language of the Codec Control Message Full Intra Request (FIR) as defined in RFC5104 when using it with layered codecs. In particular, a Decoder Refresh Point needs to be sent by a media sender when a FIR is received on any layer of the layered bitstream, regardless on whether those layers are being sent in a single or in multiple RTP flows. The other payload-specific feedback messages defined in RFC 5104 and RFC 4585 as updated by RFC 5506 have also been analyzed, and no corresponding shortcomings have been found. The IETF datatracker status page for this draft is: https://datatracker.ietf.org/doc/draft-ietf-avtext-avpf-ccm-layered/ There's also a htmlized version available at: https://tools.ietf.org/html/draft-ietf-avtext-avpf-ccm-layered-04 A diff from the previous version is available at: https://www.ietf.org/rfcdiff?url2=draft-ietf-avtext-avpf-ccm-layered-04 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 Jan 10 09:29:23 2017 Return-Path: X-Original-To: avtext@ietf.org Delivered-To: avtext@ietfa.amsl.com Received: from ietfa.amsl.com (localhost [IPv6:::1]) by ietfa.amsl.com (Postfix) with ESMTP id 808311294E3; Tue, 10 Jan 2017 09:29:13 -0800 (PST) Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit From: The IESG To: "IETF-Announce" X-Test-IDTracker: no X-IETF-IDTracker: 6.40.3 Auto-Submitted: auto-generated Precedence: bulk Message-ID: <148406935351.22270.10579278115381483839.idtracker@ietfa.amsl.com> Date: Tue, 10 Jan 2017 09:29:13 -0800 Archived-At: Cc: draft-ietf-avtext-avpf-ccm-layered@ietf.org, avtext-chairs@ietf.org, avtext@ietf.org, The IESG , rfc-editor@rfc-editor.org Subject: [avtext] Protocol Action: 'Using Codec Control Messages in the RTP Audio-Visual Profile with Feedback with Layered Codecs' to Proposed Standard (draft-ietf-avtext-avpf-ccm-layered-04.txt) X-BeenThere: avtext@ietf.org X-Mailman-Version: 2.1.17 List-Id: Audio/Video Transport Extensions working group discussion list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 10 Jan 2017 17:29:13 -0000 The IESG has approved the following document: - 'Using Codec Control Messages in the RTP Audio-Visual Profile with Feedback with Layered Codecs' (draft-ietf-avtext-avpf-ccm-layered-04.txt) as Proposed Standard This document is the product of the Audio/Video Transport Extensions Working Group. The IESG contact persons are Alexey Melnikov, Ben Campbell and Alissa Cooper. A URL of this Internet Draft is: https://datatracker.ietf.org/doc/draft-ietf-avtext-avpf-ccm-layered/ Technical Summary This document fixes a shortcoming in the specification language of the Codec Control Message Full Intro Request (FIR) as defined in RFC5104 when using with layered codecs. In particular, a Decoder Refresh Point needs to be send by a media sender when a FIR is received on any layer of the layered bitstream, regardless on whether those layers are being sent in a single or in multiple RTP flows. The other payload-specific feedback messages defined in RFC 5104 and RFC4585 as updated by RFC 5506 have also been analyzed, and no corresponding shortcomings have been found. Working Group Summary The WG is happy with current version. No technical comments are received. The WG process was fast and efficient. Document Quality There are existing deployed implementations of the RFC5104 based mechanisms. This draft is trying to solve the issues of using RFC5104 in the case of layered codec, which is expected to be a very common implementation. It’s a simple document and all the technical parts have been agreed in the WG. Personnel Document Shepherd: Rachel Huang Responsible AD: Ben Campbell From nobody Tue Jan 31 01:43:09 2017 Return-Path: X-Original-To: avtext@ietfa.amsl.com Delivered-To: avtext@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 89DA1129424; Tue, 31 Jan 2017 01:43:08 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -4.221 X-Spam-Level: X-Spam-Status: No, score=-4.221 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, RCVD_IN_DNSWL_MED=-2.3, RCVD_IN_MSPIKE_H3=-0.01, RCVD_IN_MSPIKE_WL=-0.01, 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 mOFjf6JApnNE; Tue, 31 Jan 2017 01:43:07 -0800 (PST) Received: from sessmg22.ericsson.net (sessmg22.ericsson.net [193.180.251.58]) (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 9458B1293F0; Tue, 31 Jan 2017 01:43:06 -0800 (PST) X-AuditID: c1b4fb3a-12eaf98000004068-7d-58905c28cf7d Received: from ESESSHC015.ericsson.se (Unknown_Domain [153.88.183.63]) by (Symantec Mail Security) with SMTP id 5B.78.16488.82C50985; Tue, 31 Jan 2017 10:43:05 +0100 (CET) Received: from [127.0.0.1] (153.88.183.153) by smtp.internal.ericsson.com (153.88.183.65) with Microsoft SMTP Server id 14.3.319.2; Tue, 31 Jan 2017 10:42:50 +0100 To: IETF AVTCore WG , "avtext@ietf.org" , "Ben Campbell" From: Magnus Westerlund Message-ID: Date: Tue, 31 Jan 2017 10:42:49 +0100 User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:45.0) Gecko/20100101 Thunderbird/45.6.0 MIME-Version: 1.0 Content-Type: text/plain; charset="windows-1252"; format=flowed Content-Transfer-Encoding: 8bit X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFprMLMWRmVeSWpSXmKPExsUyM2K7va5mzIQIg3dXmS1e9qxkt/h47war xfzO0+wOzB5Llvxk8pi18wlLAFMUl01Kak5mWWqRvl0CV8bXuRvYCo4IVbz7btXAOJG/i5GT Q0LARGLniTnsXYxcHEIC6xgl/q1ewgjhLGeUaJtzlxWkSkQgW6L7fiMLiM0mYCFx80cjG4gt LOAssfD4DnYQm1fAXqLh2lswm0VAVWLNmjYmEFtUIEbi7frlUDWCEidnPgGaw8HBDFT/YGsZ SJhZQF6ieetsZhBbSEBboqGpg3UCI+8sJB2zEDpmIelYwMi8ilG0OLW4ODfdyEgvtSgzubg4 P08vL7VkEyMwqA5u+W21g/Hgc8dDjAIcjEo8vAa9/RFCrIllxZW5hxglOJiVRHjz/SZECPGm JFZWpRblxxeV5qQWH2KU5mBREuc1W3k/XEggPbEkNTs1tSC1CCbLxMEp1cAo7shqdnrV9OK5 FZY7U6zezFIoFbOISN+U/mup2tsDT76eeWwv8ubbJL4N+ufYp83Lro+rejZrw0pVRr5Zq+4/ C1lQ68OerT75rbjcxbYFV+sMg2UWvf93QjZ0TWZP2Fq7m+2ieeaHfvnKTp4/ydfOaLvOm8Ux Pk0CZ3/IvW4JXdkgkHdsVudyJZbijERDLeai4kQAIRlsISYCAAA= Archived-At: Subject: [avtext] Proposed charter for merger of AVTCORE and AVTEXT into AVT X-BeenThere: avtext@ietf.org X-Mailman-Version: 2.1.17 Precedence: list List-Id: Audio/Video Transport Extensions working group discussion list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 31 Jan 2017 09:43:08 -0000 WGs, Below you find the chairs and ADs proposal for an AVT WG charter, covering the work currently done by AVTCORE and AVTEXT WG. If you have any issues, suggestions or other proposals, please provide them no later than the 14th of February. Charter text ------------ The Real-time Transport Protocol (RTP) along with its associated profiles and payload formats provides for real-time transmission of audio and video over unicast and multicast transports. RTP is widely implemented, and deployed for a wide range of applications, ranging from telephony to television over IP. RTP itself has been shepherded to Full Standard. Its associated profiles, extensions, and payload formats are currently at various levels of standards maturity. As new applications have emerged, the need for guidelines for the use of the RTP/RTCP protocols and extensions specific to those applications has been identified. The AVT working group is chartered to maintain the core RTP/RTCP specifications and the AVP, SAVP, AVPF, and SAVPF profiles. The group will provide architectural guidance for extending the protocols and guidelines for their proper use. While other working groups are chartered to work on RTCP Extended Report Extensions (XRBLOCK) and RTP Payload Formats (PAYLOAD), extensions that are generally applicable will be developed in AVT. The AVT working group is also charted to develop application-specific guidelines for the use of RTP/RTCP protocols with the AVP, SAVP, AVPF, and SAVPF profiles, and extensions to those protocols that are driven by application-specific needs. The AVT working group will coordinate closely with the Security Area while working on maintenance and enhancements to the SRTP Profile (SAVP). ---- End of Charter Text Milestone that exist in either of the groups will be moved to the AVT WG. -- Magnus Westerlund ---------------------------------------------------------------------- Services, Media and Network features, Ericsson Research EAB/TXM ---------------------------------------------------------------------- Ericsson AB | Phone +46 10 7148287 Färögatan 6 | Mobile +46 73 0949079 SE-164 80 Stockholm, Sweden | mailto: magnus.westerlund@ericsson.com ----------------------------------------------------------------------