© IRT – Tai

Web-Distribution FormatsFor Subtitles & Captions

Web & TV Workshop, 12/13.3. Andreas Tai, Institut für Rundfunktechnik

Web-Distributionformats for Captions , 13.3.2014 © IRT – Tai

Formats

Web-Distributionformats for Captions , 13.3.2014 © IRT – Tai

TTML &WebVTT

Web-Distributionformats for Captions , 13.3.2014 © IRT – Tai

TTML

Web-Distributionformats for Captions , 13.3.2014 © IRT – Tai

2003

Web-Distributionformats for Captions , 13.3.2014 © IRT – Tai

<p begin="00:00:00.000" end="00:00:02.000" xmlns="http://www.w3.org/ns/ttml">This is a subtitle<br/>on two lines</p>

Web-Distributionformats for Captions , 13.3.2014 © IRT – Tai

Status

TTML 1.0, 2nd Edition

NextTTML 2.0

Web-Distributionformats for Captions , 13.3.2014 © IRT – Tai

Who?

Web-Distributionformats for Captions , 13.3.2014 © IRT – Tai

DVB HbbTV

SMPTE-TT EBU-TT-D CFF-TT

Web-Distributionformats for Captions , 13.3.2014 © IRT – Tai

+

Web-Distributionformats for Captions , 13.3.2014 © IRT – Tai

SMPTE-TT

TTML

CFF-TT

EBU-TT-D

Web-Distributionformats for Captions , 13.3.2014 © IRT – Tai

WebVTT

Web-Distributionformats for Captions , 13.3.2014 © IRT – Tai

2010

Web-Distributionformats for Captions , 13.3.2014 © IRT – Tai

00:00:00.000 --> 00:00:02.000This is a subtitleon two lines

Web-Distributionformats for Captions , 13.3.2014 © IRT – Tai

Web Media Text Tracks Community Group

Web-Distributionformats for Captions , 13.3.2014 © IRT – Tai

Status

Draft Community Specification

NextW3C Rec Track

Web-Distributionformats for Captions , 13.3.2014 © IRT – Tai

Who?

Web-Distributionformats for Captions , 13.3.2014 © IRT – Tai

Web-Distributionformats for Captions , 13.3.2014 © IRT – Tai

Why not TTML?

Web-Distributionformats for Captions , 13.3.2014 © IRT – Tai

<?XML >

Web-Distributionformats for Captions , 13.3.2014 © IRT – Tai

Perspective

Web-Distributionformats for Captions , 13.3.2014 © IRT – Tai

TTML WebVTT

TTWG

Web-Distributionformats for Captions , 13.3.2014 © IRT – Tai

Web-Distributionformats for Captions , 13.3.2014 © IRT – Tai

Consensus Input

Timed Text Task Force of the Web & TV IG

Web-Distributionformats for Captions , 13.3.2014 © IRT – Tai

1)Mappings

2)One single Spec

3)Clients support TTML & WebVTT

3 Strategies

Web-Distributionformats for Captions , 13.3.2014 © IRT – Tai

Exception

TTML(SDP-US)+

Web-Distributionformats for Captions , 13.3.2014 © IRT – Tai

Future HbbTV 2.0 Devices

TTML with Profile

EBU-TT-D+

Web-Distributionformats for Captions , 13.3.2014 © IRT – Tai

Other Web Browsers

WebVTT Only

Web-Distributionformats for Captions , 13.3.2014 © IRT – Tai

Other Web Browsers

TTML Welcome

WebVTT Welcome

Web-Distributionformats for Captions , 13.3.2014 © IRT – Tai

Thank you for your attention!

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Tel. +49-(0)89-32399-0Fax +49-(0)89-32399-351E-Mail: tai@irt.de

Andreas TaiProduction Systems Television