Timed Text Working Group Teleconference -- 24 Jul 2014

<trackbot> Date: 24 July 2014

<nigel> scribeNick: plh

NIgel: activities on issues since last meeting

Prioritise discussion for this meeting

Nigel: let's cover IMSC and issues for tday
... no AOB today

IMSC 1 timeline

NigeL: send email on Friday and didn't see responses
... I'll take that as approval
... this was generated with Pierre btw
... idea is: all issues need to be raised by September 5th
... it's possible that we'll identify some cases where an issue might fit better in IMSC during the f2f
... so I've left a little window for the f2f
... then Pierre will be able to create a draft for review by October 15
... so we'll have resolved issues or defer them
... I'll send a liaison to key orgs about the timeline
... feedback?

plh: +1

RESOLUTION: IMSC timeline is approved

Nigel: second part of the IMSC issues
... in upcoming meetings, I'd like to address them
... proposal is to have 2 hours meetings on July 31, August 14
... might skip August 28

Jerry: is that to cover IMSC topics, or make progress on TTML issues?

Nigel: I try to cover issues regardless of products

Jerry: those dates would work for me

Nigel: for August 28, anybody volunteering to chair?

RESOLUTION: 2 hours meeting on July 31, August 14, and no meeting on August 28

Action items

issue-259?

<trackbot> issue-259 -- Define "closest" -- pending review

<trackbot> http://www.w3.org/AudioVideo/TT/tracker/issues/259

Nigel: seems that people are happy with those actions

action-207?

<trackbot> action-207 -- Glenn Adams to Add round-down clarification to "closest" language, see issue-259 -- due 2014-04-01 -- PENDINGREVIEW

<trackbot> http://www.w3.org/AudioVideo/TT/tracker/actions/207

action-258?

<trackbot> action-258 -- Glenn Adams to Work with pal to resolve edits needed for issue-259 comments -- due 2014-04-01 -- PENDINGREVIEW

<trackbot> http://www.w3.org/AudioVideo/TT/tracker/actions/258

Nigel: that works for me and Pierre and Glenn. any objection to move on?

close action-207

<trackbot> Closed action-207.

close action-258

<trackbot> Closed action-258.

close issue-259

<trackbot> Closed issue-259.

action-306?

<trackbot> action-306 -- Jerry Smith to Assign priorities to change proposals owned by jdsmith -- due 2014-07-24 -- PENDINGREVIEW

<trackbot> http://www.w3.org/AudioVideo/TT/tracker/actions/306

Nigel: some conversation about this.
... this was on a change proposal
... since we agreed to prioritize them

<nigel> https://www.w3.org/wiki/TTML/ChangeProposalIndex

Nigel: we have priorities in the table now
... change proposal 2 is marked as no action needed

<nigel> https://www.w3.org/wiki/TTML/changeProposal002

Nigel: but can we close the change proposal?

Jerry: I think it's been implemented. want to check it's complete
... I'll update the status
... I'll do it today

Nigel: ok, we'll close the proposal after you're done with your action.

Jerry: I'll update the table after the meeting

action overdue or due next week

Nigel: I followed up with David on the geneva f2f meeting
... and he is still working on it
... at the moment, we only have one vtt expect who responded

<nigel> https://www.w3.org/2002/09/wbs/34314/TTWG_Geneva_F2F_Planning/

Nigel: deadline is August 15

Issues pending review, discussed and raised over the past week

issue-263?

<trackbot> issue-263 -- profile feature set may not match intended feature constraints -- pending review

<trackbot> http://www.w3.org/AudioVideo/TT/tracker/issues/263

(we'll skip that one)

issue-324?

<trackbot> issue-324 -- Prefer end to dur on generated out-of-line regions -- raised

<trackbot> http://www.w3.org/AudioVideo/TT/tracker/issues/324

Nigel: this is to do with the out of line region text
... Glenn assigned a duration value to those regions

issue-324 is now open

issue-325?

<trackbot> issue-325 -- Add 'prohibited' value to @ttp:validation -- raised

<trackbot> http://www.w3.org/AudioVideo/TT/tracker/issues/325

Nigel: Glenn raised that one

Jerry: in this case prohibited means disabled?

Nigel: yes, it means you must not validate this

Jerry: what's the use case?

Nigel: I don't know

issue-325: the group would like to see use case(s) for this

<trackbot> Notes added to issue-325 Add 'prohibited' value to @ttp:validation.

issue-326?

<trackbot> issue-326 -- definitions do not use shall, uses of definitions may use shall -- raised

<trackbot> http://www.w3.org/AudioVideo/TT/tracker/issues/326

Nigel: this is about conformance language
... makes sense to me

326 is now open

issue-327?

<trackbot> issue-327 -- IMSC should meet W3C QA Framework Spec guidelines -- raised

<trackbot> http://www.w3.org/AudioVideo/TT/tracker/issues/327

Nigel: this is generic bucket.
... let's try to meet the best practices as we can.
... is that a reasonnable thing to be asking for?

Plh: it's nice to have but not a priority imho
... let's see what Pierre can do and if you have more specific concern, you should raise those separately

Nigel: agreed

issue-328?

<trackbot> issue-328 -- ittm:altText should be in TT namespace in TTML 2.0 -- raised

<trackbot> http://www.w3.org/AudioVideo/TT/tracker/issues/328

Nigel: goes back to alt text
... that maybe imsc doesn't meet the WCAG 2 guidelines
... although the resolution didn't require alt text
... it's still a good idea
... so it's imsc 1 and John wants to put in the tt namespace
... ie not part of metadata

Plh: +1 to John

Nigel: I agree as well

issue-309?

<trackbot> issue-309 -- Image profile needs to permit text equivalent -- open

<trackbot> http://www.w3.org/AudioVideo/TT/tracker/issues/309

Nigel: Pierre has made some edits there
... I still need to complete my review but I'm comfortable with where we got to now
... I suppose there is a question about the alternative mechanism

Plh: so the meeting with the a11y folks happened?

Nigel: yes. it isn't a requirement that it needs to be provided in the same doc.
... it's a requirement for the software to find it
... there needs to be metadata about the alternative document
... I think we should close the issue at this stage

close issue-309

<trackbot> Closed issue-309.

issue-313?

<trackbot> issue-313 -- Presented Region section is informative only -- open

<trackbot> http://www.w3.org/AudioVideo/TT/tracker/issues/313

Nigel: that's an IMSC region
... ttml 1 has the concept of temporarily active region
... Pierre has resolved in his edit
... so we have a definition in IMSC 1 now
... I think the proposal is to close issue 313 and raise a new one
... happy with the approach

Jerry: makes sense to me. it clarifies the remaining issue

close issue-313

<trackbot> Closed issue-313.

<scribe> ACTION: Nigel to create follow-up issue from issue-313 [recorded in http://www.w3.org/2014/07/24-tt-minutes.html#action01]

<trackbot> Created ACTION-308 - Create follow-up issue from issue-313 [on Nigel Megitt - due 2014-07-31].

issue-314?

<trackbot> issue-314 -- Temporally active is not defined for regions -- open

<trackbot> http://www.w3.org/AudioVideo/TT/tracker/issues/314

Nigel: temporally active isn't defined and ought to be
... that can be achieve with assigning begin/end time to regions
... I wonder if folks use regions with timing
... the concept from Glenn is a good one but I don't know a use case for it
... will continue discussion with Glenn

issue-317?

<trackbot> issue-317 -- IMSC should not require frame alignment -- open

<trackbot> http://www.w3.org/AudioVideo/TT/tracker/issues/317

NIgel: Pierre made an edit that he believes sort out this issue

"A document can be made independent of the frame rate of the related video object by never using the frames term in a time expression"

"In circumstances where the video program is downsampled during delivery, the application can specify that, at playback, the relative video object be considered the delivered video program upsampled to is original rate, thereby allowing subtitle content to be rendered at the same temporal locations it was authored."

Nigel: I think it addresses my concern
... so if Pierre and I are ok, can we close the issue?

close issue-317

<trackbot> Closed issue-317.

Change proposals

Nigel: the way things look: priority 1 needs to be closed before FPWD
... Amendments to the set attribute
... HTML5 Mapping semantics

Jerry: change proposal 5 is largely drafted. you expressed a desire to have those inline. Didn't close the loop with Glenn yet. the content is there
... just needs to be incorporated

Nigel: can you create an issue on TTML 2 for this?
... and edit the change proposal page

Jerry: sure

Nigel: Audio rendering
... I don't think that needs to be in TTML 2 at this stage
... so if somebody does want to take this on, let me know
... Distribution
... I can't do a lot about it at the moment
... hoping to bring something back
... what if you have a stream of short documents?

Plh: when is FPWD scheduled?

Nigel: no timeline yet

Plh: how about targetting after the september meeting?

Nigel: too early
... would rather do after TPAC
... I'll talk with Glenn as well

<scribe> ACTION: Nigel to propose a timeline for TTML 2 FPWD [recorded in http://www.w3.org/2014/07/24-tt-minutes.html#action02]

<trackbot> Created ACTION-309 - Propose a timeline for ttml 2 fpwd [on Nigel Megitt - due 2014-07-31].

Nigel: tests needs to be closed by LC
... I'll be looking for volunteers for that
... Links

<nigel> nigel: If nobody has a use case for links that means it should have a higher priority then it will be deferred until v.next

<nigel> nigel: Meeting adjourned.

- DRAFT -

Timed Text Working Group Teleconference

24 Jul 2014

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