Re: [EXTERNAL] [PNG] Meeting minutes - Nov 14th, 2022

The 3rd Edition of the PNG spec is already in the waiting period for its
patent exemption period, so I think we can add this metadata without
pushing back the shipping date. We would otherwise be mostly sitting idle.
So we might as well add it during this down time.

I think you mentioned NBCUniversal might want this metadata for SDR in
addition to HDR?

I'll read through CTA-861-G. I haven't yet.
ST 2086 and CEA-861 (not CTA) seemed to use different units. Maybe CTA
normalizes them? I'll check.

On Mon, Nov 14, 2022 at 1:21 PM Seeger, Chris (NBCUniversal) <
Chris.Seeger@nbcuni.com> wrote:

> Hi Everyone,
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> NBCUniversal would like to see ST.2086, MaxCLL, MaxFALL.  I would
> recommend this be an amendment on not a requirement for the current draft
> as CICP is the most important signaling needed ASAP and we would prefer
> this not be delayed.
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> The Executive Summary may need a little clarification as ST 2086, MaxCLL,
> MaxFall are all part of CTA-861-G (I think this is correct 😊)
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> ___________________________________
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> *Chris Seeger*
> *Director, Advanced Content Creation Technology*
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> *Office of the CTO*
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> *NBC Universal, LLC*
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> *From: *Chris Blume (ProgramMax) <programmax@gmail.com>
> *Date: *Monday, November 14, 2022 at 1:01 PM
> *To: *public-png@w3.org <public-png@w3.org>
> *Subject: *[EXTERNAL] [PNG] Meeting minutes - Nov 14th, 2022
>
> Attached is a PDF of the meeting minutes from Nov 14th, 2022.
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> Executive summary:
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>    - Two new chunks will be added for ST.2086 and CTA-861-G HDR metadata.
>    - These standards use different units (0.00002 nits, 1 nit)
>    represented in different ways from existing PNG chunks. That is okay. Each
>    chunk will use the units and representations of that standard.
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> The next meeting will be Nov 28th, 2022.
> A future email will list topics for that meeting.
>