TTWG Meeting 2020-09-10

[nigelmegitt]

Agenda

1. This meeting
2. TTML2 2nd Edition
2.1 Implementation Report
2.2 placeholder Interaction between tts:writingMode and tts:direction on paragraph element. w3c/ttml2#1211
3. Virtual TPAC 2020 Planning
3.1 CSS issues #140
3.2 Joint TPAC meeting with MEIG and Media WG re: text tracks #139
4. TTML Profiles Registry
4.1 The codecs parameter should have a formal definition of the use of the combination operators. w3c/tt-profile-registry#71 and pull request w3c/tt-profile-registry#78
4.2 MIME parameters ("codecs") for bucket ISO BMFF-wrapped TTML versus "application/ttml+xml" w3c/tt-profile-registry#76
5. AOB – please notify of any other AOB now!

Time

15:00 - 16:00 (1 hour) UTC

Please be ready for a prompt start at 15:03am UTC time.

Our teleconference is scheduled with reference to UTC Time, the correct time of this teleconference in your locale may change.

Check https://www.timeanddate.com/worldclock/fixedtime.html?iso=20200910T15&p1=1440

Calendar for this meeting: https://www.w3.org/AudioVideo/TT/wip/meeting-20200910.ics

Joining details:

see https://lists.w3.org/Archives/Member/member-tt/2016Oct/0009.html
(members-only link – if you can't see this and wish to join please contact me)

Future meetings and recent activity:

See the TTWG project board for upcoming meetings.

See individual agenda items for recent activity on specific products.

See the TTWG home page for links to repositories and recent activity.

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Agenda+ This meeting

Assign Roles

Chairs: Nigel Megitt, Gary Katsevman

Scribe:

Regrets: Andreas, Cyril

Previous meeting: https://www.w3.org/2020/09/03-tt-minutes.html

Prioritise discussion for this meeting and look ahead

Check-point for order of topics and any other business.

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TTML2 2nd Edition

Implementation Report

All tests are now completed in the w3c/ttml2-tests repo

Status of this? @cconcolato volunteered to update it with the tests as we expect them to be.

There have been changes made recently, showing one passing implementation for most tests at
https://www.w3.org/wiki/TimedText/TTML2SecondEditionImplementationReport

Interaction between tts:writingMode and tts:direction on paragraph element. w3c/ttml2#1211

[placeholder in case further discussion is needed]

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Virtual TPAC 2020 Planning

Now is the time for the Chairs to be arranging joint meetings at virtual TPAC this year.

Joint meetings wiki page

• APA - request for joint meeting about formalizing requirements for synchronized media.

Date confirmed

CSS Issues #140

• CSS WG Arrange joint virtual TPAC meeting with CSS WG #140

Joint TPAC meeting with MEIG and Media WG re: text tracks #139

Date confirmed, duration under consideration

Privacy?

We said we would follow up on timed text privacy issues; if we're going to, we need to request time with PING.

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TTML Profiles Registry

The codecs parameter should have a formal definition of the use of the combination operators. w3c/tt-profile-registry#71 and pull request w3c/tt-profile-registry#78

Pull request open

MIME parameters ("codecs") for bucket ISO BMFF-wrapped TTML versus "application/ttml+xml" w3c/tt-profile-registry#76

Proposed wording for review

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Agenda+ AOB

[andreastai]

Regrets

[cconcolato]

regrets

[nigelmegitt]

Minutes at https://www.w3.org/2020/09/10-tt-minutes.html