Re: [MMUSIC] Reply to Liaison statement to IETF concerning 3D video
Bert Greevenbosch <Bert.Greevenbosch@huawei.com> Wed, 22 May 2013 05:58 UTC
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From: Bert Greevenbosch <Bert.Greevenbosch@huawei.com>
To: Mary Barnes <mary.ietf.barnes@gmail.com>, Flemming Andreasen <fandreas@cisco.com>, Ari Keränen <ari.keranen@ericsson.com>
Thread-Topic: [MMUSIC] Reply to Liaison statement to IETF concerning 3D video
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Date: Wed, 22 May 2013 05:57:49 +0000
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Cc: mmusic <mmusic@ietf.org>
Subject: Re: [MMUSIC] Reply to Liaison statement to IETF concerning 3D video
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Although I agree that the reversion of the draft to individual status was justified at the time, I fail to see how it is relevant to 3GPP. It seems an internal IETF process issue to me. I agree with Flemming's draft response about the reasons for ceasing the work on this. Best regards, Bert -----Original Message----- From: mmusic-bounces@ietf.org [mailto:mmusic-bounces@ietf.org] On Behalf Of Mary Barnes Sent: 2013年5月20日 22:40 To: Flemming Andreasen Cc: Ari Keränen; mmusic Subject: Re: [MMUSIC] Reply to Liaison statement to IETF concerning 3D video Whether or not you explicitly mention the IPR, I think it should be mentioned that the document was adopted as a WG document but latter dropped due to some of the reasons you note. It it not a common occurrence for a document to be agreed as a WG document and then shortly thereafter have that decision revert. So, I think it's worth a mention. Thanks, Mary. On Fri, May 17, 2013 at 1:01 PM, Flemming Andreasen <fandreas@cisco.com> wrote: > > On 5/16/13 4:21 PM, Mary Barnes wrote: >> >> I'm just curious if it was intentional to leave out the fact that two >> of the documents were agreed as WG documents (and submitted as such) >> in November 2011: >> http://www.ietf.org/proceedings/82/minutes/mmusic.htm >> >> but were dropped after the IPR declaration appeared in Feb 2012: >> http://www.ietf.org/proceedings/83/minutes/minutes-83-mmusic.htm >> >> Then, they came back as individual again and there was not enough >> interest to pick them up again: >> http://www.ietf.org/proceedings/84/minutes/minutes-84-mmusic >> >> I'm not debating the conclusion at all, but it seems to me that >> leaving out the fact that there were at one time agreed as WG >> documents and later dropped due to IPR/lack of interest is a relevant >> fact. > > I wouldn't say the drafts were dropped due to IPR (but understand that > different people may have different opinions on this), however the lack of > an IPR disclosure prior to the documents' original adoption as WG items > resulted in them going back to individual drafts. IPR disclosures were then > made in accordance with IETF requirements, and following that, we had a > renewed discussion in the WG around interest in the work as well as relevant > expertise in the WG. As part of that, we noted the lack of coordination with > and requirements from external bodies with respect to 3D video. There were > also different opinions on the technical approach. In the end, as you note, > there was not sufficient interest or concensus in the WG for adopting the > work (as noted below). > > If you think it's important to convey the IPR issue and the history around > that, we can certainly do so. Personally, I don't think it changes anything > and wouldn't want to suggest any presupposition as to what the WG might want > to do if MPEG were to express a need for this work, but I'm open either way. > > Thanks > > -- Flemming > >> Mary. >> >> On Thu, May 16, 2013 at 2:58 PM, Ari Keränen <ari.keranen@ericsson.com> >> wrote: >>> >>> Here is what we are planning to send as a response to the 3GPP liaison >>> request regarding 3D video work at MMUSIC (for details, see >>> https://datatracker.ietf.org/liaison/1239/). >>> >>> >>> Regards, >>> Ari & Flemming (MMUSIC co-chairs) >>> >>> --- >>> >>> Title: Reply to Liaison statement to IETF concerning 3D video formats >>> signalling in SDP >>> >>> Source: IETF MMUSIC WG >>> To: TSG-SA WG4 >>> >>> The MMUSIC Working Groups thanks SA4 for their information request around >>> work related to SDP signaling of 3D video formats. At the present time, >>> the >>> MMUSIC WG does not have any active work in this area. >>> >>> For your information, the MMUSIC WG did previously (in 2012) consider >>> work >>> in this area based on the following 3 documents: >>> >>> http://datatracker.ietf.org/doc/draft-capelastegui-mmusic-3dv-sdp/ >>> http://datatracker.ietf.org/doc/draft-greevenbosch-mmusic-sdp-parallax/ >>> http://datatracker.ietf.org/doc/draft-greevenbosch-mmusic-sdp-3d-format/ >>> >>> The drafts were presented in a couple of meetings and discussed on the >>> MMUSIC mailing list, however there was not significant interest nor >>> technical agreement in the WG for adoption of these items at the time. It >>> was also believed that additional 3D video expertise and alignment with >>> MPEG >>> would be needed to adequately cover this area. In lieu of the above, the >>> work was not adopted. >>> >>> The MMUSIC WG would welcome further input from SA WG4 on this matter. >>> >>> Next IETF meetings: >>> - IETF 87 July 28 - August 2, 2013, Berlin, Germany >>> - IETF 88 November 3-8, 2013, Vancouver, BC, Canada >>> >>> >>> Regards, >>> Flemming Andreasen and Ari Keränen >>> MMUSIC WG co-chairs >>> _______________________________________________ >>> mmusic mailing list >>> mmusic@ietf.org >>> https://www.ietf.org/mailman/listinfo/mmusic >> >> . >> > _______________________________________________ mmusic mailing list mmusic@ietf.org https://www.ietf.org/mailman/listinfo/mmusic
- [MMUSIC] Reply to Liaison statement to IETF conce… Ari Keränen
- Re: [MMUSIC] Reply to Liaison statement to IETF c… Stephan Wenger
- Re: [MMUSIC] Reply to Liaison statement to IETF c… Mary Barnes
- Re: [MMUSIC] Reply to Liaison statement to IETF c… Flemming Andreasen
- Re: [MMUSIC] Reply to Liaison statement to IETF c… Mary Barnes
- Re: [MMUSIC] Reply to Liaison statement to IETF c… Cullen Jennings (fluffy)
- Re: [MMUSIC] Reply to Liaison statement to IETF c… Bert Greevenbosch
- Re: [MMUSIC] Reply to Liaison statement to IETF c… Ari Keränen
- Re: [MMUSIC] Reply to Liaison statement to IETF c… Ari Keränen
- Re: [MMUSIC] Reply to Liaison statement to IETF c… Cullen Jennings (fluffy)