CELLAR -- DRAFT AGENDA for Virtual Interim Meeting

<table> <thead> <tr> <th align="center">Date</th> <th align="center">Time</th> <th align="left">Local Times</th> </tr> </thead> <tbody> <tr> <td align="center">2021-10-26</td> <td align="center">21:00 Amsterdam</td> <td align="left">Time Converter</td> </tr> <tr> <td align="center">Note</td> <td align="center">Meeting time is anchored to Amsterdam</td> <td align="left"></td> </tr> </tbody> </table>

Administrivia

INFO:

https://github.com/ietf-wg-cellar/chair-notes/tree/master/interim-2021-09 Note that we're now pointing to the Github repo for chair notes here

WEB CONFERENCE:

https://whereby.com/cellar-interim

THERE IS NO TELEPHONE DIALIN (You can try connecting to the whereby.com link at any time.) :::warning We are still on whereby.com for this meeting, but still planning to move to Meetecho for upcoming meetings. Please stay alert! :::

Shared COMIMD for notetaking: https://codimd.ietf.org/notes-cellar-virtual

• Note that if you log in to the IETF datatracker, you'll be able to edit these notes, add your name to attendee lists, etc.
• Please ask Spencer if you have questions. :::warning The ComiMD URL is still redirecting, but the newly official location is https://notes.ietf.org/notes-cellar-virtual?edit - and that's active now. Please bookmark the new one when you're redirected to it. :::

Logistics for Meeting

2021 virtual interim meeting dates

• Please note our 2021 dates listed at https://datatracker.ietf.org/wg/cellar/meetings/
• November 23, 2021: 21:00 Paris (2000 UTC)

Agenda Items

Note Well: https://www.ietf.org/about/note-well/

Roll call

Attendees * Spencer Dawkins * Michael Richardson * Steve Lhomme * Jerome Martinez * Martijn van Beurden * Reto Kromer * Dave Rice * Michael Niedermayer

Regrets *

News You Can Use

• NOTE that https://mediaarea.net/NoTimeToWait5 is December 8-10, with in-person and virtual registration - a lot of us are attending workshop on improving Matroska, and how to improve FFV1. the workshops are on December 8, meeting 9/10.

Proposed final dates for 2022 Cellar meetings

• 2022-01-25
• 2022-02-22
• 2022-03-29
• 2022-04-26
• 2022-05-24
• 2022-06-28
• 2022-08-23
• 2022-09-27
• 2022-10-25
• 2022-12-06

ACTION Michael sending request to our ADs and requesting secretariat to add these meetings in the datatracker

WG status update

• draft-ietf-cellar-chapter-codecs-00 was posted 2021-10-09, in ID Exists New this month
• draft-ietf-cellar-codec-07 was posted 2021-10-19, in ID Exists
• draft-ietf-cellar-control-00 was posted 21-10-09, in ID Exists New this month
• draft-ietf-cellar-ffv1-v4-17 was posted 2021-05-25, in ID Exists
• draft-ietf-cellar-flac-01 was posted 2021-04-27, in ID Exists, New version being posted manually
• draft-ietf-cellar-matroska-08 was posted 2021-10-09, in ID Exists
• draft-ietf-cellar-tags-0 was posted 2021-10-09, in ID Exists

Milestone review:

• Previous status: Jerome is now able to focus on FFV1-v4, since we've published FFV1. ACTION Spencer to send e-mail to DISPATCH when we submit a (small) update. We should wait until we have a bit more text, or bigger issues, to publish as a draft.
• Are we ready to submit a working group draft for EBML updates (errata plus additions) yet? (https://github.com/ietf-wg-cellar/ebml-specification/tree/corrections-doc) - we can still wait for more feedback/bigger changes before submitting anything - ETA is "after we get Matroska out, so we know everything Matroska needs will be covered"
• Have we selected a new editor for FLAC? actually, no, and we need to. This work is heating up, but until this becomes a bottleneck, we can wait until Matroska is out

Accept draft minutes from previous meeting (attached below)

• Any objections? Please let us know on the mailing list.
• No objections on the mailing list or on the call.

Making sure we have copyright issues straightened out for the FLAC specification

• Remember, the issue we care about right now is whether the IETF can publish a FLAC specification
• Our "last Contact" for the specification we're working with, is "Copyright (c) 2000-2009 Josh Coalson, 2011-2014 Xiph.Org Foundation" (https://xiph.org/flac/format.html)

<h5>Discussion on the call</h5>

• We are still verifying what the license covering the specification is - it's GFL 1.1, specified in the HTML file
• Continue with the current document, or start a new one?
• Dave has confirmed with Andrew Weaver that he's not interested in continuing the work
• Our issue is that the IETF licensing is incompatible with GFL license, because we're using copyright as a substitute for a trademark, since trademark doesn't exist in all countries
• This is probably a conversation we should have with the IETF Trust
• We should also give our ADs a heads-up
• Michael is writing a note to the IETF Trust on our call, asking for guidance

Matroska issues - Discussion on the call

• Merging the easy PRs for now
• Two categories of issues are left
• Checking with Moritz on 3-4 pull requests, can move ahead without a reply
• Steve - we're close to being ready for a full review
• New Matroska docs were taken out of the main specification, and aren't blocking for us to move forward
• Both new documents need closer looks and discussion

FLAC issues - Discussion on the call

• Lots of open issues and PRs are new
• We have a new version, being posted manually
• ("Ongoing")
• We need to track our changes to FLAC while we chase down the plan for dealing with the original text

FFV1 v4 issues - Discussion on the call

• No discussion on the call

AOB?

• We have new test files repos - ACTION Spencer to update our activity report
• We will meet on Whereby in November meeting, and then (try to) migrate to MeetEcho as a group
• Keep an eye on CoViD-19 situations no matter where you are and where you will be!

:::success NEXT MEETING 2021-11-23 :tada: :::

Notes from previous meeting for approval

CELLAR -- DRAFT AGENDA for Virtual Interim Meeting

<table> <thead> <tr> <th align="center">Date</th> <th align="center">Time</th> <th align="left">Local Times</th> </tr> </thead> <tbody> <tr> <td align="center">2021-09-28</td> <td align="center">21:00 Amsterdam</td> <td align="left">Time Converter</td> </tr> <tr> <td align="center">Note</td> <td align="center">Meeting time is anchored to Amsterdam</td> <td align="left"></td> </tr> </tbody> </table>

Administrivia

INFO:

https://github.com/ietf-wg-cellar/chair-notes/tree/master/interim-2021-07 Note that we're now pointing to the Github repo for chair notes here

WEB CONFERENCE:

https://whereby.com/cellar-interim

THERE IS NO TELEPHONE DIALIN (You can try connecting to the whereby.com link at any time.) :::warning We are still on whereby.com for this meeting, but still planning to move to Meetecho for upcoming meetings. Please stay alert! :::

Shared COMIMD for notetaking: https://codimd.ietf.org/notes-cellar-virtual

• Note that if you log in to the IETF datatracker, you'll be able to edit these notes, add your name to attendee lists, etc.
• Please ask Spencer if you have questions. :::warning The ComiMD URL is still redirecting, but the newly official location is https://notes.ietf.org/notes-cellar-virtual?edit - and that's active now. Please bookmark the new one when you're redirected to it. :::

Logistics for Meeting

2021 virtual interim meeting dates

• Please note our 2021 dates listed at https://datatracker.ietf.org/wg/cellar/meetings/
• October 26, 2021: 21:00 Paris (1900 UTC)
• November 23, 2021: 21:00 Paris (2000 UTC)

Agenda Items

Note Well: https://www.ietf.org/about/note-well/

Roll call

Attendees * Spencer Dawkins * Dave Rice * Michael Richardson * Jerome Martinez * Michael Niedermayer * Steve Lhomme * Martijn van Beurden

Regrets * Reto Kromer *

News You Can Use

• NOTE that https://mediaarea.net/NoTimeToWait5 is December 8-10, with in-person and virtual registration - are Cellar people attending? workshop on improving Matroska, and how to improve FFV1. the workshops are on December 8, meeting 9/10.

Default dates for 2022 Cellar meetings

• 2022-01-25
• 2022-02-22
• 2022-03-22 (but this is IETF 113 - move it to 2022-03-29)
• 2022-04-26
• 2022-05-24
• 2022-06-28
• 2022-07-26 (but this is IETF 114 - we canceled July in 2021. Is canceling July the right summer month to cancel? Yes - we MIGHT be meeting in person, at the IETF, but too soon to know that yet)
• 2022-08-23
• 2022-09-27
• 2022-10-25
• 2022-11-22 (this is Tuesday of American Thanksgiving - does anyone care?)
• 2022-12-27 (but this is winter break for most of us, so we canceled in 2021. Maybe move it to 2022-12-06, or is that too close to the November meeting?

proposed final dates: * 2022-01-25 * 2022-02-22 * 2022-03-29 * 2022-04-26 * 2022-05-24 * 2022-06-28 * 2022-08-23 * 2022-09-27 * 2022-10-25 * 2022-12-06 ACTION Spencer to confirm on mailing list

WG status update

• draft-ietf-cellar-codec-06 was posted 2021-04-12, in ID Exists
• draft-ietf-cellar-ffv1-v4-17 was posted 2021-05-25, in ID Exists
• draft-ietf-cellar-flac-01 was posted 2021-04-27, in ID Exists
• draft-ietf-cellar-matroska-07 was posted 2021-04-12, in ID Exists
• draft-ietf-cellar-tags-06 was posted 2021-04-12, in ID Exists

Milestone review:

• Previous status: Jerome is now able to focus on FFV1-v4, since we've published FFV1. ACTION Spencer to send e-mail to DISPATCH when we submit a (small) update. We should wait until we have a bit more text, or bigger issues, to publish as a draft.
• Are we ready to submit a working group draft for EBML updates (errata plus additions) yet? (https://github.com/ietf-wg-cellar/ebml-specification/tree/corrections-doc)
• FLAC still needs an editor to complete the work. Michael did hear back from Florin, and he's unable to serve as editor, so the working group has a decision to make about FLAC.

<h5>Discussion on the call</h5>

• Steve is waiting for reviews on Matroska (should we just merge everything? :-) Timescale looks like the tricky question, for now. Can start preliminary review on merged documents then. Planning to sort IDs for IANA (we have over 100 of them) - want to make sure this is easy to verify correctness. IANA will accept XML file for everything
• When RFC for Matroska is published, do we have to do anything to update links to Internet-Drafts? No, that's handled by IANA.

Accept draft minutes from previous meeting (attached below)

• Any objections? Please let us know on the mailing list.
• No objections during the call.

Matroska issues - Discussion on the call

• Mostly validating patches and approving them

FFV1 v4 issues - Discussion on the call

• Jerome has ideas for proof of concepts, but not ready to share that yet.
• Some questions about licensing in IETF - license on FFV1 not present, patch has been approved and applied. License is same as Matroska.

FLAC issues - Discussion on the call

• (We noted that we don't have the original FLAC authors involved - we probably need to do some homework on this, to ensure that we handle copyright for FLAC correctly)
• Remember to mention the FLAC format author(s) - "Josh Coalson", copyrights in 2009 and 2011 on the website
• Martijn van Beurden would like to help, and has experience on libFLAC. For now, we just need to make sure that everything in the documents makes sense/is logical. If anything is missing, we just need to create issues (https://github.com/ietf-wg-cellar/Cellar-FLAC/issues) and PRs for that.

AOB?

• Spencer welcomed Martijn van Beurden and thanked him for his offer of help on FLAC

:::success NEXT MEETING 2021-10-26 :tada: :::