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Hi, I have a question related to the video-layout element in XCON common data model. Question 1: The video-layout element is defined in the conference description level. So one video conference will have only one layout. That means 1) From the conference mixer point of view its only one output mix. 2) All participants view the same layout. Is my understanding correct? If so the video-layout description in common-data-model is giving a different impression. From the text below I got an impression that each participant can have different layout. The <video-layout> element is used in conjunction with a video stream From xcon-bounces at ietf.org Mon Nov 24 02:52:57 2008 Return-Path: <xcon-bounces at ietf.org> X-Original-To: xcon-archive at megatron.ietf.org Delivered-To: ietfarch-xcon-archive at core3.amsl.com Received: from [127.0.0.1] (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id A34223A67D0; Mon, 24 Nov 2008 02:52:57 -0800 (PST) X-Original-To: xcon at core3.amsl.com Delivered-To: xcon at core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 0A7AB3A67D0 for <xcon at core3.amsl.com>; Mon, 24 Nov 2008 02:52:56 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -6.248 X-Spam-Level: X-Spam-Status: No, score=-6.248 tagged_above=-999 required=5 tests=[BAYES_00=-2.599, HELO_EQ_SE=0.35, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_MED=-4] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id EX1BioOn4-Cz for <xcon at core3.amsl.com>; Mon, 24 Nov 2008 02:52:55 -0800 (PST) Received: from mailgw3.ericsson.se (mailgw3.ericsson.se [193.180.251.60]) by core3.amsl.com (Postfix) with ESMTP id E6D243A67B3 for <xcon at ietf.org>; Mon, 24 Nov 2008 02:52:54 -0800 (PST) Received: from mailgw3.ericsson.se (unknown [127.0.0.1]) by mailgw3.ericsson.se (Symantec Mail Security) with ESMTP id 0391E2217D for <xcon at ietf.org>; Mon, 24 Nov 2008 11:52:15 +0100 (CET) X-AuditID: c1b4fb3c-ab0c8bb0000015b5-58-492a850879a1 Received: from esealmw128.eemea.ericsson.se (unknown [153.88.254.121]) by mailgw3.ericsson.se (Symantec Mail Security) with ESMTP id D7EBC21F96 for <xcon at ietf.org>; Mon, 24 Nov 2008 11:42:17 +0100 (CET) Received: from esealmw107.eemea.ericsson.se ([153.88.200.70]) by esealmw128.eemea.ericsson.se with Microsoft SMTPSVC(6.0.3790.1830); Mon, 24 Nov 2008 11:41:57 +0100 X-MimeOLE: Produced By Microsoft Exchange V6.5 Content-class: urn:content-classes:message MIME-Version: 1.0 Date: Mon, 24 Nov 2008 11:41:55 +0100 Message-ID: <EF4121B4EBC4E045BDE1273F9D0A87FF06E3E7E1 at esealmw107.eemea.ericsson.se> X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: Common-data-model -- video-layout Thread-Index: AclOIUUUEkLhqBITS0O6/WeEr0/OLQ=From: "Krishna Prasad Kalluri" <krishna.prasad.kalluri at ericsson.com> To: <xcon at ietf.org> X-OriginalArrivalTime: 24 Nov 2008 10:41:57.0106 (UTC) FILETIME=[45F0B520:01C94E21] X-Brightmail-Tracker: AAAAAA=Subject: [XCON] Common-data-model -- video-layout X-BeenThere: xcon at ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: Centralized Conferencing <xcon.ietf.org> List-Unsubscribe: <https://www.ietf.org/mailman/listinfo/xcon>, <mailto:xcon-request at ietf.org?subject=unsubscribe> List-Archive: <https://www.ietf.org/mailman/private/xcon> List-Post: <mailto:xcon at ietf.org> List-Help: <mailto:xcon-request at ietf.org?subject=help> List-Subscribe: <https://www.ietf.org/mailman/listinfo/xcon>, <mailto:xcon-request at ietf.org?subject=subscribe> Content-Type: multipart/mixed; boundary="==============56482235==" Sender: xcon-bounces at ietf.org Errors-To: xcon-bounces at ietf.org This is a multi-part message in MIME format.Title: Common-data-model -- video-layout
Hi,
I have a question related to the video-layout element in XCON common data model.
Question 1:
The video-layout element is defined in the conference description level. So one video conference will have only one layout. That means
1) From the conference mixer point of view its only one output mix.
2) All participants view the same layout.
Is my understanding correct? If so the video-layout description in common-data-model is giving a different impression. From the text below I got an impression that each participant can have different layout.
The <video-layout> element is used in conjunction with a video
stream to specify how the video streams (of participants) are
viewed by each participant. Only one layout type can be
specified for each output stream
Question 2:
In the data model is it possible to include video-layout per participant. May be its correct to say per endpoint. If the display of endpoint is small (mobile phone) a participant can select a smaller layout (Eg: dual-view) . If the endpoint display is large (pc) a participant can select a bigger layout. Of course this causes more processing in the mixer to generate several output mixes.
In H.248.19 it is possible to specify one layout type per termination.
So in the data model I like to propose to add
Users->user->endpoint->controls->video-layout
Any way the summary is I like to see layout per participant (endpoint)
Regards
Krishna
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