ISSUE-299: dur must be greater than zero [TTML 1.0] from Timed Text Working Group Issue Tracker on 2013-12-26 (public-tt@w3.org from December 2013)

From: Timed Text Working Group Issue Tracker <sysbot+tracker@w3.org>
Date: Thu, 26 Dec 2013 18:14:22 +0000
To: public-tt@w3.org
Message-Id: <E1VwFRu-0007t5-IW@shauna.w3.org>

ISSUE-299: dur must be greater than zero [TTML 1.0]

http://www.w3.org/AudioVideo/TT/tracker/issues/299

Raised by: Glenn Adams
On product: TTML 1.0

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

Received on Thursday, 26 December 2013 18:14:23 UTC