Timed Text Working Group Teleconference

<trackbot> Date: 07 May 2015

<scribe> scribe: nigel

This meeting

nigel: goes through agenda. AOB?

group: no AOB.

nigel: I'm told we will be transitioning from Zakim to Webex for audio calls. That means we will have
... the opportunity to do screen sharing too. We will continue to use IRC for logging, minutes etc.
... One plus point of Webex is that we can use it to dial any international number.
... In my experience the VOIP functionality in Webex isn't as good as getting it to dial out to a normal
... line (even if that normal line is another provider's VOIP service!).
... Looking further ahead I'll be on vacation on 18th and 25th June, so if anyone wants to step in
... and chair then let me know, otherwise the default will likely be that we don't meet on those days.

Actions

action-390?

<trackbot> action-390 -- Nigel Megitt to Update the multirowalign and linepadding ttml files to have shorter lines of text -- due 2015-04-17 -- PENDINGREVIEW

<trackbot> http://www.w3.org/AudioVideo/TT/tracker/actions/390

nigel: Andreas told me he's happy with this so I propose to close it.

close action-390

<trackbot> Closed action-390.

action-391?

<trackbot> action-391 -- Nigel Megitt to Update the multirowalign and linepadding pngs to match the ttml -- due 2015-04-17 -- PENDINGREVIEW

<trackbot> http://www.w3.org/AudioVideo/TT/tracker/actions/391

nigel: On this one Andreas said he found the dotted line representing the root container region to be
... confusing. I plan to edit the test page to say "the dotted line represents the root container region".
... The reason I put it in was that typically the PNGs might be viewed in a browser and the edges are
... invisible when displayed against a white holding page.
... Oh, Andreas has just contributed by email.

https://www.w3.org/wiki/TimedText/IMSC1_Implementation_Report#Tests

nigel: He says it's important to clarify that the dotted lines are the root container region.

pal: You need also to say that the dotted lines are not part of the rendering. I don't personally think
... that the dotted lines are needed but if they're going to be there it should be clear that they shouldn't
... be rendered. I also would recommend that they're not there. I think someone who cares is going to
... download the PNG and use that rather than opening in a browser.

nigel: Okay I'm happy to trim the PNG to be the correct size and take out the confusing wording.

close action-391

<trackbot> Closed action-391.

<scribe> ACTION: nigel Trim dotted lines out of PNGs and edit test text [recorded in http://www.w3.org/2015/05/07-tt-minutes.html#action01]

<trackbot> Created ACTION-402 - Trim dotted lines out of pngs and edit test text [on Nigel Megitt - due 2015-05-14].

action-389?

<trackbot> action-389 -- Andreas Tai to Check with ebu group if we can have a combined event at ibc with ebu group and imsc/w3c -- due 2015-04-17 -- PENDINGREVIEW

<trackbot> http://www.w3.org/AudioVideo/TT/tracker/actions/389

nigel: As co-chair of this group and the EBU XML Subtitles group I'm party to the discussion on both sides.
... The conclusion was yes, it is fine to give a joint presentation with Andreas, Pierre and me on the EBU
... stand to publicise this part of the family of TTML specs. Precise details of the presentation to be agreed.

pal: I'll work with you and Andreas on that.

close action-389

<trackbot> Closed action-389.

nigel: There are no more actions with work on them - all the remaining actions we opened at the F2F
... are now by default overdue.

glenn: I've completed action-385

action-385?

<trackbot> action-385 -- Glenn Adams to Remove stereoleft and stereoright from <bound-parameter> -- due 2015-04-17 -- OPEN

<trackbot> http://www.w3.org/AudioVideo/TT/tracker/actions/385

glenn: I'm in the process of pushing that to Hg right now.

pal: I think I've closed Action-397, or it's pending review.

nigel: Yes, I think we need also to generate a CR snapshot with the updated SOTD etc.

glenn: You can go ahead and close action-385 as I've removed the bound parameters; the other stuff
... about changing disparity is separate to this action.

nigel: Glenn, can you go ahead and set the action to Pending Review once you've added the changeset
... reference as normal?

pal: Can we look at action-365?

action-365?

<trackbot> action-365 -- Pierre-Anthony Lemieux to Review change proposal 21 in the light of closure of issue-229. -- due 2015-03-26 -- OPEN

<trackbot> http://www.w3.org/AudioVideo/TT/tracker/actions/365

<pal> http://www.w3.org/wiki/TTML/changeProposal021

pal: As I recall the resolution to this discussion was to inform SMPTE of the choices that this group has
... made. I think we can close Action-365.
... I have reviewed CP-21, identified differences to the SMPTE request, and we've taken the follow-up
... action. So I think we can close it.

Action-365: [TTWG Meeting 2015-05-07] Pierre: I have reviewed CP-21, identified differences to the SMPTE request, and we've taken the follow-up action.

<trackbot> Notes added to Action-365 Review change proposal 21 in the light of closure of issue-229..

close action-365

<trackbot> Closed action-365.

nigel: CP21 has one open issue, Issue-231, so we can't close the CP yet.

issue-231?

<trackbot> issue-231 -- Individual character rotation -- open

<trackbot> http://www.w3.org/AudioVideo/TT/tracker/issues/231

nigel: Do we wait for a response for Issue-231?

pal: We can't hold up for SMPTE - we don't know what response they will give.

mike: SMPTE will respond - I don't know if the Digital Cinema folk need the arbitrary glyph rotation.

pal: There were two or three dispositions in the message to SMPTE that were not exactly coincident with
... the SMPTE request sourced from Digital Cinema.

mike: Pierre, let's follow up offline.

pal: Sure.

nigel: Okay we'll leave Issue-231 and CP-21 open for the time being.

Issues

issue-382?

<trackbot> issue-382 -- Require a computed non-indefinite begin time -- pending review

<trackbot> http://www.w3.org/AudioVideo/TT/tracker/issues/382

nigel: Pierre made a change, I reviewed it, and Pierre updated the text this week.

pal: Overall the direction didn't change.

nigel: Right, we just tightened up the language.

pal: The recommendation is still the same, to have a begin and end that apply to content elements.

close issue-382

<trackbot> Closed issue-382.

issue-388?

<trackbot> issue-388 -- ttp:timeBase not required on tt -- pending review

<trackbot> http://www.w3.org/AudioVideo/TT/tracker/issues/388

pal: I think there had been some confusion there in the input document. The intent was not to mandate
... the presence of the attribute ttp:timeBase on the root element, but merely to mandate that the "media"
... timeBase be used. So now IMSC 1 reflects that.

close issue-388

<trackbot> Closed issue-388.

nigel: I guess this means that the list of changes relative to CR1 needs to include these.

pal: The list I already sent includes issue-388 and issue-382.

IMSC CR2

nigel: We can propose to adopt the current ED as a new CR as per Pierre's email https://lists.w3.org/Archives/Public/public-tt/2015May/0005.html

PROPOSAL: We will request transition of the current ED of IMSC 1 as a second Candidate Recommendation

RESOLUTION: We will request transition of the current ED of IMSC 1 as a second Candidate Recommendation

nigel: We need to set an earliest CR exit date criterion. Are we going to make that the earliest it can be,
... 4 weeks after publication, at the earliest?

pal: +1

nigel: And aside from that will the exit criteria be exactly the same as the first CR?

pal: My only concern is getting implementation experience.

nigel: Do we need to discuss this when we have a staff contact present?

pal: I like that suggestion - let's discuss with plh or tmichel.
... I don't think we should let this block transition though, so we should push ahead with any actions
... needed to advance the process.

<scribe> ACTION: plh Arrange Director call for IMSC 1 CR2 transition request [recorded in http://www.w3.org/2015/05/07-tt-minutes.html#action02]

<trackbot> Created ACTION-403 - Arrange director call for imsc 1 cr2 transition request [on Philippe Le Hégaret - due 2015-05-14].

pal: I'll stand by to create the CR2 branch with the updated SOTD etc in ready for publication.

TTML2 editorial actions

nigel: Has there been any more input on this?

glenn: Not as far as I know.

nigel: It seems that nobody has had trouble looking at the spreadsheet.

https://dvcs.w3.org/hg/ttml/raw-file/tip/ttml2/spec/ednotes.xlsx

pal: What's the action related to Issue-224?

nigel: It's to add an example TTML fragment and how it should render, for the disparity feature in
... §10.2.10 (ID 033 in the spreadsheet).

pal: In fact there's already an example, it just needs an image.
... I'll take that one. I'll have to decode tts:position - I'll do my best!

glenn: I'll be able to generate some of the examples from my TTPE project, for features like the Ruby
... and other Japanese features that have been implemented so far. The other ones may have to be done
... manually if there's no implementation available yet for that feature.
... I'll update the list and mark on those that TTPE will be able to generate.

nigel: We're out of time so, just a reminder that if you want to practice chairing on 18th or 25th June
... please let me know. Thanks everyone, I'll adjourn now - meet again same time next week.
... [adjourns meeting]