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{minutes} TTWG Meeting 9/10/2014

From: Nigel Megitt <nigel.megitt@bbc.co.uk>
Date: Thu, 9 Oct 2014 15:05:05 +0000
To: Timed Text Working Group <public-tt@w3.org>
Message-ID: <D05C625C.13FC6%nigel.megitt@bbc.co.uk>
Thanks all for attending today's TTWG meeting. Minutes are available in
HTML format at http://www.w3.org/2014/10/09-tt-minutes.html

In text format:


      [1] http://www.w3.org/

                Timed Text Working Group Teleconference

09 Oct 2014

   See also: [2]IRC log

      [2] http://www.w3.org/2014/10/09-tt-irc


          courtney, Frans, glenn, nigel, tmichel, pal, jdsmith





     * [3]Topics
         1. [4]This meeting
         2. [5]Santa Clara F2F October (TPAC)
         3. [6]IMSC 1 WD Comments
         4. [7]TTML2 Timeline
         5. [8]Action Items pending review
         6. [9]Action items overdue
         7. [10]Issues discussed and Pending Review
         8. [11]Change Proposals
     * [12]Summary of Action Items

   <trackbot> Date: 09 October 2014

   <mike> regrets for today. apologies.

   <scribe> scribeNick: nigel

This meeting

   nigel: I've created a git repo for the TTML <--> WebVTT
   mappings from Geneva. If folk could either add their own and
   send a pull request to me or
   ... just email me the files then I'll put them in. Then I'll
   send a pull request to the main w3c repo to get them included.

   courtney: I'd request that people check their work before

Santa Clara F2F October (TPAC)


     [13] http://www.w3.org/wiki/TimedText/tpac2014

   nigel: There's a request to deal with the IMSC 1 comments and
   the Codecs registry item on the Monday.
   ... If folk could add their names to the Attendees table on the
   wiki page that would be very helpful.

IMSC 1 WD Comments




   nigel: I suggest we discuss offline and then agree responses at

   pal: I would typically wait until the review period has ended,
   and work on responses in time for TPAC.

   tmichel: Typically the person to whom the comment is assigned
   should prepare a response, then agree it with the WG, then send
   to the commenter and get their responses.
   ... I have some guidance documentation for this tool which I
   can share.
   ... I will send this guide out.
   ... For the procedure, I will track the comments, then add each
   one. When there are multiple issues raised in a single email I
   will split them.
   ... I can then assign to people, or we can just assign them in
   the weekly meetings. The field "Working Group Notes" is for
   ... Then at the F2F the WG should find a resolution for each
   proposal. Then the Submit button makes the issue 'ready to
   send' to the commenter.
   ... Then we send, and request approval from the commenter -
   there's a range of responses permitted.

   nigel: Thank you. Can we assign the comments now?

   pal: Please assign them to me.

   tmichel: Okay, I will do.
   ... When comments are just a 'set of typos' etc we should keep
   them as single comment to manage the workload.

TTML2 Timeline

   nigel: Describes timeline as set out in emails and agenda.

   glenn: Implementation activity may mean that we need upwards of
   3 months in CR.

Action Items pending review


   <trackbot> action-331 -- Nigel Megitt to Contact cyril
   requesting git repository instructions for the tests. -- due
   2014-09-24 -- PENDINGREVIEW


     [15] http://www.w3.org/AudioVideo/TT/tracker/actions/331

   nigel: I've done this. Incidentally I've put all the existing
   dfxp tests into github too.



     [16] https://github.com/nigelmegitt/web-platform-tests/tree/ttwg/ttml

   close action-331

   <trackbot> Closed action-331.


   <trackbot> action-336 -- Nigel Megitt to Add codecs registry to
   f2f agenda at tpac -- due 2014-10-09 -- PENDINGREVIEW


     [17] http://www.w3.org/AudioVideo/TT/tracker/actions/336

   action-336: [TTWG meeting] We will cover this on the Monday.

   <trackbot> Notes added to action-336 Add codecs registry to f2f
   agenda at tpac.

   close action-336

   <trackbot> Closed action-336.


   <trackbot> action-337 -- Nigel Megitt to Update TTML2
   publication timeline -- due 2014-10-13 -- PENDINGREVIEW


     [18] http://www.w3.org/AudioVideo/TT/tracker/actions/337

   close action-337

   <trackbot> Closed action-337.

Action items overdue


   <trackbot> action-332 -- Glenn Adams to Add schema support for
   ISD vocabulary -- due 2014-10-01 -- OPEN


     [19] http://www.w3.org/AudioVideo/TT/tracker/actions/332

   glenn: That's still ongoing pending some refinements I'm making
   on the vocabulary.
   ... I've been implementing support for the ISD format in TTV so
   I've been experimenting on that vocabulary and refining it a
   little bit.
   ... I'm folding the changes into Annex C as I go.

   action-332: Moving due date to TPAC (TTWG meeting)

   <trackbot> Notes added to action-332 Add schema support for ISD


   <trackbot> action-333 -- Pierre-Anthony Lemieux to Create a one
   pager to cover the plan for the director's meeting for taking
   imsc1 to cr. -- due 2014-10-02 -- OPEN


     [20] http://www.w3.org/AudioVideo/TT/tracker/actions/333

   action-333: Moving due date to TPAC (TTWG meeting)

   <trackbot> Notes added to action-333 Create a one pager to
   cover the plan for the director's meeting for taking imsc1 to

Issues discussed and Pending Review


   <trackbot> issue-228 -- Ruby text support -- pending review


     [21] http://www.w3.org/AudioVideo/TT/tracker/issues/228

   glenn: I added an offset, so this covers all the requested

   close issue-228

   <trackbot> Closed issue-228.

   glenn: I note that there's no mapping in CSS for the offset
   feature, but at least authors may express the intent.


   <trackbot> issue-276 -- ttp:version vs ttp:profile vs
   ttp:contentProfile -- pending review


     [22] http://www.w3.org/AudioVideo/TT/tracker/issues/276

   Frans: for me this is okay to close

   issue-276: frans has reviewed.

   <trackbot> Notes added to issue-276 ttp:version vs ttp:profile
   vs ttp:contentProfile.

   close issue-276

   <trackbot> Closed issue-276.


   <trackbot> issue-345 -- tts:overflow - ambiguous language about
   region extent -- pending review


     [23] http://www.w3.org/AudioVideo/TT/tracker/issues/345

   close issue-345

   <trackbot> Closed issue-345.


   <trackbot> issue-346 -- Need ttp:mediaDuration parameter --
   pending review


     [24] http://www.w3.org/AudioVideo/TT/tracker/issues/346

   nigel: I wonder if this is related to the related media object
   timing discussion for TPAC.

   glenn: It's independent of the media offset feature.
   ... There was a question about whether it's metadata or a
   parameter. There will be a normative use (processor behaviour)
   for the ISD mapping, so it will be a parameter.

   close issue-346

   <trackbot> Closed issue-346.


   <trackbot> issue-347 -- Define ISD Syntax for both UA internal
   use and interchange. -- pending review


     [25] http://www.w3.org/AudioVideo/TT/tracker/issues/347

   glenn: This was done. I added the issue to track the change I
   wanted to make.

   nigel: We haven't really discussed this so it would be good to
   go through your reasons and solution at TPAC.

   glenn: Yes, let's go ahead and do that. It's my intention to
   make ISD an interchangeable format and to that extent I'm
   effectively defining the schema so that we would
   ... continue to use the same content type but with a different
   root element to the tt:tt. Right now TTML documents in the
   larger sense can either be tt:tt or ttp:profile.
   ... I'm extending this to add isd:sequence and isd:isd to allow
   interchange of a sequence of ISD documents or a single ISD.

   close issue-347

   <trackbot> Closed issue-347.


   <trackbot> issue-348 -- Make metric optional in offset-time
   form of time expressions. -- pending review


     [26] http://www.w3.org/AudioVideo/TT/tracker/issues/348

   glenn: Both SMIL and SVG allow the metric to be optional and I
   frequently find it convenient to drop it, especially when the
   value is zero.
   ... I'm proposing making TTML consistent with SMIL and SVG.
   I've already amended the spec.

   nigel: This is the first opportunity we've had to discuss this.

   close issue-348

   <trackbot> Closed issue-348.


   <trackbot> issue-350 -- Add general statement/comment in
   abstract/introduction that IMSC1 is not a proper subset of
   TTML1SE. -- pending review


     [27] http://www.w3.org/AudioVideo/TT/tracker/issues/350

   jdsmith: Does that imply that it extends TTML1?

   nigel: Yes it does.

   jdsmith: Are the extensions listed?

   pal: Yes, Annex D Extensions lists them.

   close issue-350

   <trackbot> Closed issue-350.


   <trackbot> issue-337 -- Update SDP-US for TTML2 -- open


     [28] http://www.w3.org/AudioVideo/TT/tracker/issues/337

   issue-337: (TTWG meeting) We resolved not to update SDP-US for

   <trackbot> Notes added to issue-337 Update SDP-US for TTML2.

   close issue-337

   <trackbot> Closed issue-337.

Change Proposals


     [29] http://www.w3.org/wiki/TTML/ChangeProposalIndex

   nigel: CP1 is owned by jdsmith, and covers issue-165 which is
   ... It doesn't have an Edits Applied section. What do we need
   to do to close this CP?

   glenn: No further edits are needed for this. The only action is
   to update the CP to reflect that the proposed edits no longer
   ... For example the target element attribute isn't used in the
   current spec. Targets can be inline and implied, or out of line
   and have content elements point back using an animate
   ... So the original proposal has morphed a bit. We should
   update the CP to reflect those changes.

   <scribe> ACTION: glenn Update Change Proposal 1 to reflect new
   approach and move to CLOSED-IMPLEMENTED. [recorded in

   <trackbot> Created ACTION-338 - Update change proposal 1 to
   reflect new approach and move to closed-implemented. [on Glenn
   Adams - due 2014-10-16].

   jdsmith: I believe the intent of the CP is satisfied.

   nigel: Change Proposal 12 is the next one, with a whole bunch
   of profile fixes.


     [31] https://www.w3.org/wiki/TTML/changeProposal012

   glenn: Now that we've closed issue-276 the only dependent issue
   is issue-305. That one is really external to the profiling
   mechanism per se.

   nigel: I agree - it should be a related issue without a

   <scribe> ACTION: glenn Fill in the relevant sections of Change
   Proposal 12 and move it to CLOSED-IMPLEMENTED. [recorded in

   <trackbot> Created ACTION-339 - Fill in the relevant sections
   of change proposal 12 and move it to closed-implemented. [on
   Glenn Adams - due 2014-10-16].


     [33] https://www.w3.org/wiki/TTML/changeProposal024

   nigel: The last Pending Close one is CP24

   <scribe> ACTION: glenn Update Change Proposal 24 and move to
   CLOSED-IMPLEMENTED [recorded in

   <trackbot> Created ACTION-340 - Update change proposal 24 and
   move to closed-implemented [on Glenn Adams - due 2014-10-16].

   nigel: I wonder if we can deal with CP17... Oh, we're dependent
   on issue-179.
   ... I have to do some more work on CP25 too - that's
   progressing and I intend to update this prior to TPAC and
   hopefully present the work at TPAC.
   ... It's going to be interesting to compare and contrast the
   two approaches of 1) sequence of ISDs and 2) sequence of TTML
   documents. My view now is that both are valid and valuable.
   ... Thanks everyone, we've finished 4 minutes early! We have 1
   hour next week.

Summary of Action Items

   [NEW] ACTION: glenn Fill in the relevant sections of Change
   Proposal 12 and move it to CLOSED-IMPLEMENTED. [recorded in
   [NEW] ACTION: glenn Update Change Proposal 1 to reflect new
   approach and move to CLOSED-IMPLEMENTED. [recorded in
   [NEW] ACTION: glenn Update Change Proposal 24 and move to
   CLOSED-IMPLEMENTED [recorded in

   [End of minutes]

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