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Call for Implementation for "TTML Text and Image Profiles for Internet Media Subtitles and Captions 1.0" (IMSC1)

From: Thierry MICHEL <tmichel@w3.org>
Date: Tue, 30 Jun 2015 16:02:18 +0200
Message-ID: <5592A16A.8010307@w3.org>
To: W3C Public TTWG <public-tt@w3.org>

Dear IMSC1 Implementers,


Abstract: This is a Call for Implementation for "TTML Text and Image
Profiles for Internet Media Subtitles and Captions 1.0" (IMSC1) and a
call for reporting IMSC1 Implementation experience using our Questionnire.

------------------

The World Wide Web Consortium (W3C) is an international community that
develops open standards to ensure the long-term growth of the Web. Read
about the W3C mission [1].

Within the W3C, the Timed Text Working Group (TTWG) mission is to
develop W3C Recommendations for media online captioning by developing
and maintaining new versions of the "Timed Text Markup Language" (TTML),
"TTML Text and Image Profiles for Internet Media Subtitles and Captions
1.0" (IMSC1) and "Web Video Text Tracks" (WebVTT) based on
implementation experience and interoperability feedback, and the
creation of semantic mappings between those languages. Read about the
TTWG charter [2].

In this context, the W3C Timed Text Working Group [3] published its
latest "TTML Text and Image Profiles for Internet Media Subtitles and
Captions 1.0 (IMSC1) [4], a W3C Candidate Recommendation dated 19 May
2015. W3C publishes a Candidate Recommendation [5] to indicate that the
document is believed to be stable and to encourage implementation by the
developer community.

Implementation experience is required to show that a W3C specification
is sufficiently clear, complete, and relevant to market needs, to ensure
that independent interoperable implementations of each feature of the
specification will be realized.

Therefore, for IMSC1 to exit the Candidate Recommendation stage, at
least 2 independent implementations of every feature defined in this
specification, but not already present in [TTML1], need to be documented
in an Implementation Report.

The Implementation Report is based on implementer-provided test results
for the IMSC1 test suite [6] (tests and sample content) maintained by
the Timed Text Working Group. The Working Group does not require that
implementations are publicly available but encourages them to be so.

In order to demonstrate adequate implementation experience, the Timed
Text Working Group invites all IMSC1 implementors to report on the
current status of their implementation (product, prototypte, scripts,
etc...) using the online Implementation questionnaire [7]. Note that
answers can be updated any numbre of times after first submission, for
example to indicate that a previously "not tested" test has now been passed.

The responses to the questionnaire are visible to members of the Timed
Text Working Group (and the W3C Team). Implementors wishing to keep
their implementation details private may alternatively respond with
implementation details directly to tmichel@w3.org using the text version
of this questionnaire [8].

The results of this questionaire will be used to draft a public
Implementation Report to demonstrate adequate implementation experience
and allow IMSC1 specification to move forward to Proposed
Recommendation. This Implementation Report will be made public.

If you want to anonymize your Company name and/or your Implementation
name (or code name) and version in the public Implementation Report,
please let us know by choosing the appropriate answer in the questionnaire.

If you wish to make comments regarding this specification, please send
them to public-tt@w3.org with [imsc] at the start of your email's subject.

Looking forward for your contribution with your IMSC1 implementation.

Thank you,

On behalf of the Timed Text WG,

Thierry Michel Team contact for the Timed Text WG.

     [1] http://www.w3.org/Consortium/mission.html
     [2] http://www.w3.org/2014/03/timed-text-charter.html
     [3] http://www.w3.org/AudioVideo/TT/
     [4] http://www.w3.org/TR/2015/CR-ttml-imsc1-20150519/
     [5] http://www.w3.org/2014/Process-20140801/#last-call
     [6] https://dvcs.w3.org/hg/ttml/file/tip/ttml-ww-profiles/testsuite
     [7] https://www.w3.org/2002/09/wbs/1/IMSC1-implementation/
     [8] https://www.w3.org/2002/09/wbs/1/IMSC1-implementation/text
Received on Tuesday, 30 June 2015 14:02:43 UTC

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