W3C home > Mailing lists > Public > public-tt@w3.org > September 2014

ISSUE-348: Make metric optional in offset-time form of time expressions. [TTML2]

From: Timed Text Working Group Issue Tracker <sysbot+tracker@w3.org>
Date: Tue, 23 Sep 2014 18:40:56 +0000
Message-Id: <E1XWV1E-0002Yp-NY@shauna.w3.org>
To: public-tt@w3.org
ISSUE-348: Make metric optional in offset-time form of time expressions. [TTML2]

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

Raised by: Glenn Adams
On product: TTML2

In SMIL and SVG, time expressions that employ the offset-time form may elide the metric component, in which case 's' (seconds) is implied. This change will improve interoperability with existing W3C practice by reducing differences that need to be accounted for by authors. Note, however, that TTML2 documents that employ this minimization technique will not otherwise be compatible with TTML1 without first transforming the document to add the default 's' metric. Given that TTML2 documents are already not backwards compatible with TTML1 in a variety of ways, this does not establish a precedent.
Received on Tuesday, 23 September 2014 18:40:58 UTC

This archive was generated by hypermail 2.3.1 : Thursday, 5 October 2017 18:24:18 UTC