Return-Path: X-Original-To: mmusic@ietfa.amsl.com Delivered-To: mmusic@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id E5ED321F8499 for ; Thu, 11 Oct 2012 23:20:45 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -6.523 X-Spam-Level: X-Spam-Status: No, score=-6.523 tagged_above=-999 required=5 tests=[AWL=0.075, BAYES_00=-2.599, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_MED=-4] Received: from mail.ietf.org ([64.170.98.30]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id vRxmY95w7CPE for ; Thu, 11 Oct 2012 23:20:45 -0700 (PDT) Received: from lhrrgout.huawei.com (lhrrgout.huawei.com [194.213.3.17]) by ietfa.amsl.com (Postfix) with ESMTP id 6F34421F8498 for ; Thu, 11 Oct 2012 23:20:44 -0700 (PDT) Received: from 172.18.7.190 (EHLO lhreml204-edg.china.huawei.com) ([172.18.7.190]) by lhrrg02-dlp.huawei.com (MOS 4.3.5-GA FastPath queued) with ESMTP id AKN50251; Fri, 12 Oct 2012 06:20:42 +0000 (GMT) Received: from LHREML406-HUB.china.huawei.com (10.201.5.243) by lhreml204-edg.china.huawei.com (172.18.7.223) with Microsoft SMTP Server (TLS) id 14.1.323.3; Fri, 12 Oct 2012 07:19:56 +0100 Received: from SZXEML414-HUB.china.huawei.com (10.82.67.153) by lhreml406-hub.china.huawei.com (10.201.5.243) with Microsoft SMTP Server (TLS) id 14.1.323.3; Fri, 12 Oct 2012 07:20:18 +0100 Received: from SZXEML509-MBS.china.huawei.com ([10.82.67.53]) by SZXEML414-HUB.china.huawei.com ([10.82.67.153]) with mapi id 14.01.0323.003; Fri, 12 Oct 2012 14:20:09 +0800 From: Bert Greevenbosch To: "mmusic@ietf.org" Thread-Topic: 3D drafts and their relevancy Thread-Index: Ac2oQZ/12N4kT72LTemzS7XUlCIKYw== Date: Fri, 12 Oct 2012 06:20:08 +0000 Message-ID: <46A1DF3F04371240B504290A071B4DB6290DBC01@szxeml509-mbs> Accept-Language: en-GB, zh-CN, en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [10.70.110.143] Content-Type: multipart/alternative; boundary="_000_46A1DF3F04371240B504290A071B4DB6290DBC01szxeml509mbs_" MIME-Version: 1.0 X-CFilter-Loop: Reflected Subject: [MMUSIC] 3D drafts and their relevancy X-BeenThere: mmusic@ietf.org X-Mailman-Version: 2.1.12 Precedence: list List-Id: Multiparty Multimedia Session Control Working Group List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 12 Oct 2012 06:20:46 -0000 --_000_46A1DF3F04371240B504290A071B4DB6290DBC01szxeml509mbs_ Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Hello all, During the Vancouver meeting, the 3D drafts were briefly discussed: http://datatracker.ietf.org/doc/draft-greevenbosch-mmusic-sdp-parallax/ http://datatracker.ietf.org/doc/draft-greevenbosch-mmusic-sdp-3d-format/ (I can't find them on the MMUSIC page anymore. Can the link be re-inserted,= as they have not been expired yet?) During the discussion, there were some concerns about the relevancy of the = drafts, especially with the existence of MVC. The frame packing formats have been adopted in HDMI 1.4a and DVB 3DTV stand= ards, both of which are quite recent. Also depth maps are gaining more inte= rest in the research community, as they provide a nice and concise way to s= upply additional 3D information along with a 2D video stream. Moreover, the drafts are not intended as an alternative to MVC. It is just = about providing signalling for codecs that are already in existence today. I feel it would be a pity to stop working on 3D in SDP/SIP now. I believe h= aving SDP signalling would be quite helpful not just for one-directional us= e cases, but especially also for 3D conversational use cases. The arrival o= f the first 3D-glasses-free handhelds shows that comfortable 3D conversatio= n can be achieved in the near future. I would like to ask the group whether it believes it is beneficial to conti= nue specification of 3D in SDP/SIP? Thanks in advance for your opinions! Best regards, Bert --_000_46A1DF3F04371240B504290A071B4DB6290DBC01szxeml509mbs_ Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

Hello all,

 

During the Vancouver meeting, the 3D drafts were bri= efly discussed:

 

http://datatracker.ietf.org/doc/draft-greev= enbosch-mmusic-sdp-parallax/

http://datatracker.ietf.org/doc/draft-gree= venbosch-mmusic-sdp-3d-format/

 

(I can't find them on the MMUSIC page anymore. Can t= he link be re-inserted, as they have not been expired yet?)

 

During the discussion, there were some concerns abou= t the relevancy of the drafts, especially with the existence of MVC.

 

The frame packing formats have been adopted in HDMI = 1.4a and DVB 3DTV standards, both of which are quite recent. Also depth map= s are gaining more interest in the research community, as they provide a ni= ce and concise way to supply additional 3D information along with a 2D video stream.

 

Moreover, the drafts are not intended as an alternat= ive to MVC. It is just about providing signalling for codecs that are alrea= dy in existence today.

 

I feel it would be a pity to stop working on 3D in S= DP/SIP now. I believe having SDP signalling would be quite helpful not just= for one-directional use cases, but especially also for 3D conversational u= se cases. The arrival of the first 3D-glasses-free handhelds shows that comfortable 3D conversation can be ac= hieved in the near future.

 

I would like to ask the group whether it believes it= is beneficial to continue specification of 3D in SDP/SIP?

 

Thanks in advance for your opinions!

 

Best regards,

Bert

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