W3C

Timed Text Working Group Teleconference

31 Oct 2013

Agenda

See also: IRC log

Attendees

Present
Mike, pal, glenn, nigel, Plh, jdsmith, mijordan, sean
Regrets
Chair
nigel
Scribe
Glenn, plh

Contents


TPAC F2F agenda

<nigel> http://www.w3.org/wiki/TimedText/tpac

nigel: folks should review and comment/edit proposed agenda as needed

plh: issue about IMSC?
... regarding I18N
... specifically regarding support for subsets of Unicode code space
... Richard Ishida
... need a specific time to coordinate

<scribe> ACTION: plh to inquire with richard ishida about good time to discuss [recorded in http://www.w3.org/2013/10/31-tt-minutes.html#action01]

<trackbot> Created ACTION-226 - Inquire with richard ishida about good time to discuss [on Philippe Le Hégaret - due 2013-11-07].

pal: should i file one or more issues?

<scribe> ACTION: nigel to inform PLH when issue(s) filed in order to coordinate [recorded in http://www.w3.org/2013/10/31-tt-minutes.html#action02]

<trackbot> Created ACTION-227 - Inform plh when issue(s) filed in order to coordinate [on Nigel Megitt - due 2013-11-07].

pal: who will take animate?

glenn: can take

<scribe> ACTION: nigel to coordinate with David Singer re: VTT agenda items. [recorded in http://www.w3.org/2013/10/31-tt-minutes.html#action03]

<trackbot> Created ACTION-228 - Coordinate with david singer re: vtt agenda items. [on Nigel Megitt - due 2013-11-07].

action-226: add I18N issue to TPAC agenda

<trackbot> Notes added to action-226 Inquire with richard ishida about good time to discuss.

IANA registration of MIME type

plh: have received feedback from IANA
... (1) could handle has a new PER

glenn: how about doing an errata entry?
... thinks they are nitpicking and prefers pushing back on IANA comments

plh: maybe would be better to have someone else handle this communication rather than having to go through PLH

glenn: suggests mike handle this

mike: ok with this

plh: notes that IANA meeting is next week, but that he won't be there (at that meeting)

nigel: will reassign action-88 to mike

action-88?

<trackbot> action-88 -- Mike Dolan to Make sure the TTML media type is properly registered for Issue-175. -- due 2013-10-31 -- OPEN

<trackbot> http://www.w3.org/AudioVideo/TT/tracker/actions/88

open actions

action-224?

<trackbot> action-224 -- Pierre-Anthony Lemieux to Query mike on priority for issue-72 -- due 2013-10-31 -- OPEN

<trackbot> http://www.w3.org/AudioVideo/TT/tracker/actions/224

issue-72?

<trackbot> issue-72 -- Smooth scrolling by means of reference area offset -- open

<trackbot> http://www.w3.org/AudioVideo/TT/tracker/issues/72

mike: what is defined in TTML1SE is adequate, i.e., note about smooth interpolation between ISD (cue) instances
... shouldn't do this unless there is a proponent

nigel: jerry? any push from MSFT on this?

glenn: suggests closing as WONTFIX or LATER designation

issue-71: consider this as WONTFIX or LATER

<trackbot> Notes added to issue-71 bottom edge padding example.

issue-72: consider this as WONTFIX or LATER

<trackbot> Notes added to issue-72 Smooth scrolling by means of reference area offset.

issue-71: ignore last comment

<trackbot> Notes added to issue-71 bottom edge padding example.

action-225?

<trackbot> action-225 -- Glenn Adams to Work with plh to update standalone profile docs for ttml1se -- due 2013-10-31 -- OPEN

<trackbot> http://www.w3.org/AudioVideo/TT/tracker/actions/225

glenn: no update

action-59?

<trackbot> action-59 -- Sean Hayes to Draft CP for adding content shrink fit features -- due 2012-04-12 -- OPEN

<trackbot> http://www.w3.org/AudioVideo/TT/tracker/actions/59

sean: believes requirement for this came from EBU
... suggests finding person from EBU to push/support this
... FCC requirements to allow user to resize font may be use case for shrink fit size of region
... someone needs to look at what CSS supports in this area
... in which case we could define functionality using this CSS support

nigel: possibly interacts with requirement about background padding and/or deterministic rendering

glenn: thinks shrink fit is separate issue
... see http://www.w3.org/TR/CSS21/visudet.html#shrink-to-fit-float for CSS shrink-to-fit width discussion

action-59: was originally proposed for issue-160

<trackbot> Notes added to action-59 Draft CP for adding content shrink fit features.

issue-160?

<trackbot> issue-160 -- Centered flush left captions -- closed

<trackbot> http://www.w3.org/AudioVideo/TT/tracker/issues/160

action-58?

<trackbot> action-58 -- Sean Hayes to Draft CP for adding margin suppport -- due 2012-04-12 -- CLOSED

<trackbot> http://www.w3.org/AudioVideo/TT/tracker/actions/58

close action-59

<trackbot> Closed action-59.

action-94?

<trackbot> action-94 -- Sean Hayes to Do revisions to proposal for Issue 179. -- due 2012-09-06 -- OPEN

<trackbot> http://www.w3.org/AudioVideo/TT/tracker/actions/94

issue-179?

<trackbot> issue-179 -- Interpreting the pixel measure -- open

<trackbot> http://www.w3.org/AudioVideo/TT/tracker/issues/179

sean: did a proposal for action-94, so think its done

glenn: notes that we specifically define px to mean what XSL 1.1 defines (see TTML1SE 8.3.9)

mike: notes that most authors of TTML assume pixel is in terms of pixels of related media object; others have interpreted as (display) device pixels

<plh> scribe: plh

pal: what's the proposed text?

sean: [gives text]
... part of problem here is that ttml doesn't require a video object at all
... the idea is that, absent any video, that would still work
... [...]

nigel: let's discuss this at TPAC
... this specifies rules on how we overlay over video
... so we should tackle the issue then
... no need for action at the moment

sean: the action can be closed, keep the issue closed

close action-94

<trackbot> Closed action-94.

--

action-141?

<trackbot> action-141 -- Sean Hayes to Call for Action to identify discrepancies in TTML 1.0 on different profiles. -- due 2013-02-14 -- OPEN

<trackbot> http://www.w3.org/AudioVideo/TT/tracker/actions/141

Sean: Glenn will do this
... this was pointed out by Mike originally

action-164?

<trackbot> action-164 -- Sean Hayes to Investigate interop issues using CSS familyName constructs -- due 2013-06-06 -- OPEN

<trackbot> http://www.w3.org/AudioVideo/TT/tracker/actions/164

Sean: should be assigned to Jerry
... needs to talk to the IE folks
... and whether or not Glenn's proposal will cause an issue to CSS
... reassigned to Jerry

action-205?

<trackbot> action-205 -- Sean Hayes to Forward this solution to relevant implementers for their input -- due 2013-09-26 -- OPEN

<trackbot> http://www.w3.org/AudioVideo/TT/tracker/actions/205

Sean: this has to do with the proposed solution from Glenn to resolve origin expand with the body element
... so michael jordan or pierre
... you can ping cpc directly
... not sure what it stands for
... it's a company that has been doing work in the area. abode, ms did some work
... they have an authoring tool
... came up with the concept

<nigel> https://www.w3.org/AudioVideo/TT/tracker/issues/176

pierre: solution is in issue-176?

sean: if this special semantic is not done yet, you might to hang on it until then

nigel: that's for TPAC agenda
... I'll take the action for now

mijordan: we implemented this behavior
... you're overriding the behavior of the parent which could be problematic
... and Glenn had a proposal to resolve
... wanted feedback from CPC and Adobe
... will be attending TPAC by phone

nigel: take the action then

mike: caution here: not sure if the problems are the same here. there are flow issues to deal with
... make sure to sync with Glenn

nigel: starting with Glenn proposal since the right choice
... and modify it as needed based on implementation

mijordan: ok
... Glenn made some revision in action-93 btw

action-220?

<trackbot> action-220 -- Pierre-Anthony Lemieux to Investigate actual css behavior further regarding whether line height of individual lines are affected by font size on line as opposed to maximum over paragraph -- due 2013-10-24 -- OPEN

<trackbot> http://www.w3.org/AudioVideo/TT/tracker/actions/220

Nigel: any update?

Pierre: the line height would be good to have Glenn around
... and Mike wasn't on the call last time
... ie we need nike and glenn, so after TPAC?
... two issues:
... understanding computed line height
... and what is line height normal

action-222?

<trackbot> action-222 -- Sean Hayes to Check on receipt of iso liaison, re: parts 12 and 30 of 14496 -- due 2013-10-24 -- OPEN

<trackbot> http://www.w3.org/AudioVideo/TT/tracker/actions/222

Nigel: reassigned to Mike
... concerned about the delay

Mike: they were early communication at least
... this was a final status

[...]

issue discussed over last week

Nigel: all new issues raised by me on behalf of EBU
... some were based on input from Jon Birch
... I had a request from EBU to add extra metadata entities
... will get to them later
... any other progress on issues?

[none heard]

EBU liaison letter

Nigel: would be nice to respond indeed

<scribe> ACTION: plh to answer the EBU liaison letter [recorded in http://www.w3.org/2013/10/31-tt-minutes.html#action04]

<trackbot> Created ACTION-229 - Answer the ebu liaison letter [on Philippe Le Hégaret - due 2013-11-07].

Draft charter

Nigel: that's a standing agenda item
... a few points to note
... initial chairs is one
... idea is that I would become the other co-chair with David
... taking care of the TTML part
... that's the draft plan

<nigel> http://www.w3.org/2013/10/timed-text-charter.html

Nigel: some wording in the deliverables
... on live production streaming
... not precise enough
... will come up with a proposal
... milestones
... quite a lot of crunch
... coming at the same time
... TTML 2.0 and IMSC might need to be revised

pal: real need for ttml 2 and imsc and I think we can do both
... so no reason to have different timeframe
... imsc relies on ttml 2
... so imsc at best can happen on the same time scale

nigel: it seems safer to put a bit of offset

pal: we have a draft for imsc
... I hope we won't pushback ttml 2 further
... no significant issues against imsc
... so pretty confident with the timeline

nigel: alright
... on dependencies, we don't have one on XML

<nigel> nigel: similarly on Internationalisation

<scribe> ACTION: plh to get a review from PF sooner rather than later [recorded in http://www.w3.org/2013/10/31-tt-minutes.html#action05]

<trackbot> Created ACTION-230 - Get a review from pf sooner rather than later [on Philippe Le Hégaret - due 2013-11-07].

Nigel: do we need feeback from DVB
... they do their own thing from time to time

<scribe> ACTION: Nigel to find out which group within DVB we should target [recorded in http://www.w3.org/2013/10/31-tt-minutes.html#action06]

<trackbot> Created ACTION-231 - Find out which group within dvb we should target [on Nigel Megitt - due 2013-11-07].

<nigel> sean: John Piesing

plh: plan is to get charter to the AC after TPAC
... and approved in December

nigel: can we get from FPWD to LC between January and April?

pal: I'd like to get to FPWD asap

nigel: to reverse the idea of the TPAC doesn't seem a good idea
... any other comment?

next week meeting

Nigel: I propose to cancel it

regrets from me

regrets from mike

Next meeting is canceled

AOB?

Nigel: Thank you Sean
... we all thank you for your work

plh: thank you Sean!

Sean: it's been my pleasure
... I'll monitor the list for a while and support Jerry
... I'm not disappear entirely from earingth :)

mijordan: thank you

[adjourned]

http://www.w3.org/2013/11/TPAC/#GroupSchedule

Summary of Action Items

[NEW] ACTION: nigel to coordinate with David Singer re: VTT agenda items. [recorded in http://www.w3.org/2013/10/31-tt-minutes.html#action03]
[NEW] ACTION: Nigel to find out which group within DVB we should target [recorded in http://www.w3.org/2013/10/31-tt-minutes.html#action06]
[NEW] ACTION: nigel to inform PLH when issue(s) filed in order to coordinate [recorded in http://www.w3.org/2013/10/31-tt-minutes.html#action02]
[NEW] ACTION: plh to answer the EBU liaison letter [recorded in http://www.w3.org/2013/10/31-tt-minutes.html#action04]
[NEW] ACTION: plh to get a review from PF sooner rather than later [recorded in http://www.w3.org/2013/10/31-tt-minutes.html#action05]
[NEW] ACTION: plh to inquire with richard ishida about good time to discuss [recorded in http://www.w3.org/2013/10/31-tt-minutes.html#action01]
 
[End of minutes]

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$Date: 2013/10/31 15:51:00 $