[MPEG-OTSPEC] AHG Zoom meeting announcement and agenda - Jan. 9

[Vladimir Levantovsky]

Dear all,

We will hold the 2nd AHG Zoom meeting to review the proposed changes
outlined in the "Technologies under consideration for ISO/IEC 14496-22 5th
edition Open Font Format
<https://www.google.com/url?q=https://www.mpeg.org/wp-content/uploads/mpeg_meetings/144_Hannover/w23265.zip&sa=D&source=calendar&usd=2&usg=AOvVaw25m9Ay4YP6_EiDUnFEMAwA>"
document, and review additional changes proposed for inclusion into the
current version of the Working Draft of the 5th edition ISO/IEC 14496-22.
Please review the documents ahead of time to make the use of AHG meeting
time most efficient and productive.

The AHG meeting will be held under the following ISO rules and polices:
- Declaration for participants in ISO activities
<https://www.google.com/url?q=https://www.iso.org/declaration-for-participants-in-iso-activities.html&sa=D&source=calendar&usd=2&usg=AOvVaw2n2ZhkFMkQBjPrst6wyAbi>
- ISO Code of Ethics and Conduct
<https://www.google.com/url?q=https://www.iso.org/files/live/sites/isoorg/files/store/en/PUB100011.pdf&sa=D&source=calendar&usd=2&usg=AOvVaw3R7JNkexzilX-qCtg_vrzR>
- Guideline for Implementation of the Common Patent Policy for
ITU‑T/ITU‑R/ISO/IEC
<https://www.google.com/url?q=https://www.iso.org/files/live/sites/isoorg/files/developing_standards/resources/docs/20221216_Guidelines_for_Implementation_of_the_Common_Patent_Policy.pdf&sa=D&source=calendar&usd=2&usg=AOvVaw3236BoeE5tQKR46VIx_R2a>

Agenda
1. Overcoming 64K glyph limit and other updates.
The content of the proposal presented at the last (Oct. 16-20) SC29/WG3
meeting, summarized by the "Technologies under consideration for ISO/IEC
14496-22 5th edition Open Font Format
<https://www.google.com/url?q=https://www.mpeg.org/wp-content/uploads/mpeg_meetings/144_Hannover/w23265.zip&sa=D&source=calendar&usd=2&usg=AOvVaw25m9Ay4YP6_EiDUnFEMAwA>"
document, is being updated by authors to accommodate comments and
corrections discussed during the most recent AHG meeting on Dec. 12.
Goals:
- Review and discuss proposed changes:
https://github.com/harfbuzz/boring-expansion-spec/tree/main/iso_docs.
(Please note that most recent changes have not yet been finalized and will
be available soon, stay tuned for further updates.)
- Discuss Variable Composites portion of the proposed spec - the draft
description of the new VARC table [to be integrated with the main text of
the proposal] is available at
https://github.com/harfbuzz/boring-expansion-spec/blob/main/VARC.md (also
see https://github.com/harfbuzz/boring-expansion-spec/issues/103
<https://www.google.com/url?q=https://github.com/harfbuzz/boring-expansion-spec/issues/103&sa=D&source=calendar&usd=2&usg=AOvVaw1QwJyZRBPUyR4skOsf224E>
for
additional details);
- Provide AHG recommendations.

2. Review two additional proposals:
- New Feature Variations proposal, which was originally discussed at the
Portland AHG meeting back in August, and then deferred for discussion after
the Sep. 27 AHG Zoom call / WG meeting:
https://github.com/adobe-type-tools/opentype-spec-drafts/blob/main/WG03_new_feat_var.pdf
 ;
- New proposal to allow opting out of accurate table checksums:
https://github.com/adobe-type-tools/opentype-spec-drafts/blob/main/WG03_checksum_opt_out.pdf
 .
- Provide AHG recommendations.


Zoom meeting info (REDACTED due to the public access to this email list
archive - no changes since our last Dec. 12 meeting).

All participants in the prior AHG meeting will receive individual
invitations with full Zoom info. If you have not participated in the
previous meeting and would like to be added to the invite list - please
contact me directly.

Thank you and Happy Holidays!
Vladimir
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