TimedText/tpac2016

TTWG TPAC 2016

This page shows details of attendance and the agenda for the TTWG face to face meeting at TPAC 2016.

Logistics

TPAC Group Schedule and Registration Results

• Group Schedule
• WBS Results, Team visible
• WBS Results by group, Member visible

Registration

You must register for this event.

• Registration open through 2 September 2015. Before you register, please read Participation Policies and Recommendations

• A daily fee helps W3C offset some of the meeting costs. The daily fee applies to anyone who is attending meetings, whether as a participant or as an observer/guest, Monday through Friday.

The per person, per day fees is 180EUR for any unpaid registration including on site registration, which is available if space permits. Pre-registration is 90EUR per person per day.

• Date: TTWG F2F is 19-20 September, during TPAC2016 19-23 October, Lisbon, Portugal.
• Meeting place: At the Centro de Congressos de Lisboa in Lisbon.
• Room: 0.08.
• A WebEx access may be set up, please advise if you would like to attend by this method.

Participants

Please, put your name in this table if you plan to participate to the TTWG F2F (alphabetical order):

Name	Arrival	Departure	Hotel	Flight info and notes
Nigel Megitt	2016-09-18 1805	2016-09-23 1850	Mercure	BA502 from LHR and BA503 to LHR
Pierre Lemieux
Glenn Adams	2016-09-16 1500	2016-09-22 0700	Palácio do Governador	LH1168/LH1173
Dae Kim				--
Andreas Tai				--
Rohit Puri	2016-09-18 1805	2016-09-22 0725	EPIC SANA	BA502 from LHR and BA 499 to LHR

Agenda and Schedule

Topics

• Joint meeting with Web & TV IG - run-through of what we will discuss there, and confirm timing
• HTMLCue proposal - update? (andreas)
• TTML <--> WebVTT mapping - update? (andreas)
• TTML1 errata
  • Background area on span
    • Clarify intended rendering of background color when applied to a span
• TTML2
  • Pull Request reviews
    • Add tts:background{Clip,Extent,Origin}
    • Add support for rounded borders by introducing <border-radii> compone…
    • Add missing two component expression to <position> value syntax.
    • Remove cea{608,708} prefix from named items.
    • Add alternateText named metadata item (#107).
    • Add ttp:safeCropArea
  • TTML2 editorial - issues review
    • Audio Description specification and implementation update - Nigel
    • Timing
      • Use of offset-time expression in smpte mode
      • No restriction on time expression for smpte discontinuous mode
      • Use of fractional seconds in clock-time expression in smpte mode
    • Support for processing sequences of TTML documents that aren't in a wrapper like ISOBMFF: sequenceIdentifier and SequenceNumber including update on EBU-TT Live work
    • Relationship of root container region to media player and presented media
      • Units including vw and vh units conflict with CSS definitions
      • Need parameter attribute to express resolved storage aspect ratio in ISD
    • Styling - background areas, script layout, rubys etc
      • Does tts:backgroundImage affect size of content area?
      • Content identification
    • Condition
    • Initial
    • Profile registry - IANA registration update (plh)
    • Region templates, region style attributes, anonymous inline regions or set
      • Make inline region semantics set values on current region
    • Metadata - item names, CTA and other scheme term semantic alignment
      • Replace "CEA" with "CTA"
    • Review of editorial tasks
    • Options for simplifying TTML2 spec and retaining TTML1 backwards compatibility
  • TTML2 implementation work
• IMSC 1
  • implementation experience
  • errata
• IMSC 2
  • Scope
    • Ruby
  • Approach regarding compatibility with IMSC 1 and TTML 2
  • Editing - plan for when to have a FPWD
• How we work
  • github 1 year on - how is it working for us?

Schedule

Please note the first item on the agenda is to put the items above into the agenda below!

Monday 19th September

Time	Topic
8:30-9:00	Arrivals, coffee
9:00-9:15	Introductions
9:15-9:30	Agenda review
11:00-11:30	Joint meeting with Web & TV IG, Auditorium IV
13:00-14:00	Lunch
18:00	Adjourn

Tuesday 20th September

Time	Topic
8:30-9:00	Arrivals, coffee
9:00-13:00	TTML2: initial, condition, safe crop area, viewport units etc., timing, simplifying TTML2 while retaining TTML1 compatibility
13:00-14:00	Lunch
14:00-18:00	TTML2 continued: inline regions semantics, IANA profile registry update, document sequences/live contribution, audio description, review of editorial tasks
18:00	Adjourn