ISSUE-299: dur must be greater than zero

zero duration

dur must be greater than zero

State:

CLOSED

Product:

TTML 1.0

Raised by:

Glenn Adams

Opened on:

2013-12-26

Description:

TTML1SE (and TTML2) refer to SMIL semantics for the dur attribute, and SMIL specifies that dur must be greater than zero. [1] Although this constraint is implied by the reference to SMIL, it would be better to explicitly repeat this constraint in TTML normative text.

[1] http://www.w3.org/TR/2005/REC-SMIL2-20051213/smil-timing.html#Timing-DurValueSemantics

Related Actions Items:

• ACTION-254 on Glenn Adams to Add errata note for ttml1 pointing at constraint in smil prohibiting dur of zero, add normative text to ttml2 - due 2014-04-01, closed

Related emails:

1. {minutes} TTWG Meeting 5/6/2014 (from nigel.megitt@bbc.co.uk on 2014-06-05)
2. RE: {agenda} TTWG Meeting 5/6/2014 (from mdolan@newtbt.com on 2014-06-04)
3. {agenda} TTWG Meeting 5/6/2014 (from nigel.megitt@bbc.co.uk on 2014-06-04)
4. {agenda} TTWG Meeting 29/5/2014 (from nigel.megitt@bbc.co.uk on 2014-05-28)
5. {agenda} TTWG Meeting 22/5/2014 (from nigel.megitt@bbc.co.uk on 2014-05-21)
6. {agenda} TTWG Meeting 15/5/2014 (from nigel.megitt@bbc.co.uk on 2014-05-14)
7. Re: {agenda} TTWG Meeting 8/5/2014 (from tmichel@w3.org on 2014-05-08)
8. {agenda} TTWG Meeting 8/5/2014 (from nigel.megitt@bbc.co.uk on 2014-05-07)
9. {minutes} TTWG Meeting 1/5/2014 (from nigel.megitt@bbc.co.uk on 2014-05-01)
10. {agenda} TTWG Meeting 1/5/2014 (from nigel.megitt@bbc.co.uk on 2014-04-30)
11. Re: issue-299, action-254 wording (from nigel.megitt@bbc.co.uk on 2014-04-29)
12. Re: issue-299, action-254 wording (from glenn@skynav.com on 2014-04-26)
13. issue-299, action-254 wording (from nigel.megitt@bbc.co.uk on 2014-04-25)
14. {minutes} 9/1/14 TTWG Meeting (from nigel.megitt@bbc.co.uk on 2014-01-09)
15. TTWG Agenda for 9/1/14 (from nigel.megitt@bbc.co.uk on 2014-01-08)
16. ISSUE-299: dur must be greater than zero [TTML 1.0] (from sysbot+tracker@w3.org on 2013-12-26)

Related notes:

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