- 1 Timed Text
- 1.1 Overview
- 1.2 Timed Text Working Group Activities
- 1.3 Timed Text Efforts and Specifications
- 1.4 Timed Text Working Group Process
- 1.5 TTML Issues
- 1.6 TTML Documentation
- 1.7 Implementations
- 1.8 TTWG Working Group F2F meeting
- 1.9 Role Registry
- 1.10 Change Proposals
This is the Wiki for the activities associated with the updating of the Timed Text publications.
The Timed Text Markup Language (TTML) is a markup format language for creating captioning, subtitling and similar timed presentation of text.
Timed Text Working Group Activities
The TTML Working group home page.
Timed Text Efforts and Specifications
Thanks to the Web and TV Interest Group, here's a list of Timed Text Efforts and Specifications.
Timed Text Working Group Process
The TTML Working Group publishes Recommendations and Notes. These are known as products. Users of these products may identify issues within them, either before or after publication, and may wish to contribute developments, ideas or editorial changes to a product prior to publication.
Changes to products
For bugs it is sufficient simply to raise an issue on this tracker.
For development of new features it is a requirement that the features are described within #Change Proposals and discussed prior to approval either by teleconference meetings, usually held weekly, at face to face meetings, held on an occasional basis, or on the public email reflector which is archived here. The chair approves change proposals according to the W3C consensus policy.
Emails to the group's public address can be viewed in the archive.
List of potential implementors call for participation [call-for-participation].
Evidence of Wide Review
There is a page detailing WebVTT Wide Review
Issues are tracked.
Issues that need further elaboration can be documented and discussed by adding a page link here.
- Issue 151 Clarify syncbase in SMPTE continuous mode
You can help by providing Timed Text Documentation.
Please see the Efforts and Specifications page.
TTWG Working Group F2F meeting
- 9-10 April 2015 in the US , Las Vegas, Minutes:day1, day2.
- 2014 Oct (TPAC) F2F in Santa Clara USA, Minutes:both days.
- 2014 Sep F2F in Geneva Switzerland, Minutes:day1, day2.
- 2013 Nov (TPAC) F2F in Shenzen China,Minutes:day1, day2.
The TTML specification allows users to define and use roles for elements, in order to manage this across disparate organisations (without resorting to using complex namespaced prefixes) we have started a Role Registry
As we look to creating the next version of the specification to address open issues we will adopt a lightweight change proposal mechanism. These change proposals are recorded in the Change Proposal Index