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agenda-interim-2020-cellar-06-cellar-01-03

Meeting Agenda Codec Encoding for LossLess Archiving and Realtime transmission (cellar) WG
Date and time 2020-06-23 19:00
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Last updated 2020-06-18

agenda-interim-2020-cellar-06-cellar-01-03
CELLAR -- DRAFT AGENDA for Virtual Interim Meeting June 23, 2020
21:00 Amsterdam ***
19:00 UTC
15:00 NYC
12:00 San Francisco

Present:

INFO:
https://datatracker.ietf.org/meeting/interim-2020-cellar-04/session/cellar
https://datatracker.ietf.org/doc/agenda-interim-2020-cellar-04-cellar-01/ WEB
CONFERENCE: https://whereby.com/cellar-interim THERE IS NO TELEPHONE DIALIN
(You can try this at any time.) These notes at:
https://github.com/cellar-wg/chair-notes

1. Note Well. https://www.ietf.org/about/note-well/
2. Accept draft minutes from May 26, 2020 meeting (attached below)
3. Logistics for Meeting.
3a) Etherpad for notes
https://etherpad.ietf.org/p/notes-cellar-virtual?useMonospaceFont=true 3b)
APPEAR.IN is now called "whereby.com" https://whereby.com/cellar-interim 3c)
Roll call

4. WG status update
EBML -- lots of pull requests in response to RFC Editor AUTH48 comments. Are we
all OK with them? This is a product of the working group
 FFV1 -- version 14 was posted 26 May 2020 *** NEEDS REVISED VERSION after AD
 Review *** -14: almost complete after AD review, what needs to happen to
 finish responding to Murray's review?

5. Other Matroska issues

6. Any update on September in-person Matroska meeting in Amsterdam with No Time
To Wait?

AOB?

NEXT MEETING August 25, 2020 (no meeting in July due to IETF 108).

Previous Meeting

CELLAR -- DRAFT AGENDA for Virtual Interim Meeting May 26, 2020
21:00 Amsterdam ***
19:00 UTC
15:00 NYC
12:00 San Francisco

Present:
Michael Richardson
Spencer Dawkins
Martin Below
Steve Lhomme
Joao Victor Giraldez (google summer of code Student!)
Reto Kromer
Michael Niedermayer
Jérôme Martinez
Dave Rice

INFO:
https://datatracker.ietf.org/meeting/interim-2020-cellar-04/session/cellar
https://datatracker.ietf.org/doc/agenda-interim-2020-cellar-04-cellar-01/ WEB
CONFERENCE: https://whereby.com/cellar-interim THERE IS NO TELEPHONE DIALIN
(You can try this at any time.) These notes at:
https://github.com/cellar-wg/chair-notes

1. Note Well. https://www.ietf.org/about/note-well/
2. Accept draft minutes from April 28 meeting (attached below)
3. Logistics for Meeting.
2a) Etherpad for notes
https://etherpad.ietf.org/p/notes-cellar-virtual?useMonospaceFont=true 2b)
APPEAR.IN is now called "whereby.com" https://whereby.com/cellar-interim 2c)
Roll call

4. WG status update
EBML -- still in RFC-editor queue, waiting to get to top
FFV1 -- version 13 was posted 2020-04-28 *** NEEDS REVISED VERSION after AD
Review *** -14: almost complete after AD review, but 4 more items to do left in
the draft.

5. Mapping of MOV clean aperture values to Matroska
https://mailarchive.ietf.org/arch/msg/cellar/dvEI8FGqMtJ5PKkqEjdPWj3GrcA/
it is a bit blurry about what is supposed to come from the container, and what
is supposed to come from the codec we need to have a solid explanation of what
they are supposed to do with it. Aperture value, but only a part of the frame
is expected to be visible to the viewer, so this is a hint as to what to
display.  This is used by the cinema, but they shoot a bigger frame. Also, if
there is video that is letter-box inside the frame, and do not show that part.
      Example file of huge padding that should not be displayed:
      http://v2v.cc/~j/theora_testsuiJte/offset_test.ogv Steve to open issue in
      Matroska spec about how this should be split up.

EBML <documentation>
   https://github.com/cellar-wg/ebml-specification/blame/master/specification.markdown#L582
This needs to be edited to match the XSD

Other Matroska issues
- https://github.com/cellar-wg/matroska-specification/pull/390 vs
https://github.com/cellar-wg/matroska-specification/pull/389 The WG needs to
pick one or the other. -
https://github.com/cellar-wg/matroska-specification/pull/342/files?short_path=905680a#diff-905680a88637ae5bcaa76c4f594f285b
do we need a new kind of "Hidden" flag is the Hidden flag recursive?

this is for the Edition (EditionFlagHidden and EditionFlagDefault)
https://github.com/hubblec4/Matroska-Playback/blob/master/src/EditionEntry.md