Timed Text Working Group - Publications
Recommendations
- Deliverers
- Timed Text Working Group
This specification specifies an Hypothetical Render Model (HRM) that constrains the complexity of an IMSC Document Instance.
- Deliverers
- Timed Text Working Group
This specification improves on ttml-imsc1.1 by supporting contemporary practices, while retaining compatibility with ttml-imsc1.1 documents. It provides one new feature, which permits external font files to be referenced explicitly. One existing feature has been clarified, and no features have been deprecated in this version.
- Deliverers
- Timed Text Working Group
This document specifies the distribution format exchange profile (DFXP) of the timed text authoring format (TT AF) in terms of a vocabulary and semantics thereof.
The timed text authoring format is a content type that represents timed text media for the purpose of interchange among authoring systems. Timed text is textual information that is intrinsically or extrinsically associated with timing information.
The Distribution Format Exchange Profile is intended to be used for the purpose of transcoding or exchanging timed text information among legacy distribution content formats presently in use for subtitling and captioning functions.
In addition to being used for interchange among legacy distribution content formats, DFXP content may be used directly as a distribution format, for example, providing a standard content format to reference from a <text> or <textstream> media object element in a [SMIL 2.1] document.
- Deliverers
- Timed Text Working Group
This document specifies the Second Edition of the Timed Text Markup Language (TTML), Version 2, also known as TTML2 (2e), in terms of a vocabulary and semantics thereof.
The Timed Text Markup Language is a content type that represents timed text media for the purpose of interchange among authoring systems. Timed text is textual information that is intrinsically or extrinsically associated with timing information.
It is intended to be used for the purpose of transcoding or exchanging timed text information among legacy distribution content formats presently in use for subtitling and captioning functions.
In addition to being used for interchange among legacy distribution content formats, TTML Content may be used directly as a distribution format, for example, providing a standard content format to reference from a <track> element in an [HTML] document, or a <text> or <textstream> media element in a [SMIL 3.0] document.
- Deliverers
- Timed Text Working Group
This specification defines two profiles of TTML2: a text-only profile and an image-only profile. These profiles are intended to be used across subtitle and caption delivery applications worldwide, thereby simplifying interoperability, consistent rendering and conversion to other subtitling and captioning formats.
- Deliverers
- Timed Text Working Group
This document specifies two profiles of TTML1: a text-only profile and an image-only profile. These profiles are intended to be used across subtitle and caption delivery applications worldwide, thereby simplifying interoperability, consistent rendering and conversion to other subtitling and captioning formats.
Notes
- Deliverers
- Timed Text Working Group
This document defines the application/xml+ttml media type and provides a registry of identified TTML processor profiles.
- Deliverers
- Timed Text Working Group
This document captures technical requirements for [ttml-imsc1.1], the next revision of [ttml-imsc1.0.1].
- Deliverers
- Timed Text Working Group
This specification defines a mechanism for storing images that use the Reference PQ EOTF specified in [BT2100-1] in the Portable Network Graphics (PNG) format, without modification to existing chunks or the introduction of new chunks.
- Deliverers
- Timed Text Working Group
The Simple Online Delivery profile is focused on streamlined delivery of closed captions on the Internet, supporting core TTML features to deliver content originating legacy formats such as CEA-608 and -708 content, and is targeted primarily for delivery in US markets.
- Deliverers
- Timed Text Working Group
This document specifies usage scenarios and requirements for a timed text authoring format. A timed text authoring format is a content type that represents timed text media for the purpose of interchange among authoring systems. Timed text is textual information that is intrinsically or extrinsically associated with timing information.
Candidate Recommendation Snapshots
- Deliverers
- Timed Text Working Group
This document specifies the Second Edition of the Timed Text Markup Language (TTML), Version 2, also known as TTML2 (2e), in terms of a vocabulary and semantics thereof.
The Timed Text Markup Language is a content type that represents timed text media for the purpose of interchange among authoring systems. Timed text is textual information that is intrinsically or extrinsically associated with timing information.
It is intended to be used for the purpose of transcoding or exchanging timed text information among legacy distribution content formats presently in use for subtitling and captioning functions.
In addition to being used for interchange among legacy distribution content formats, TTML Content may be used directly as a distribution format, for example, providing a standard content format to reference from a <track> element in an [HTML] document, or a <text> or <textstream> media element in a [SMIL 3.0] document.
- Deliverers
- Timed Text Working Group
This specification defines WebVTT, the Web Video Text Tracks format. Its main use is for marking up external text track resources in connection with the HTML
Working Drafts
- Deliverers
- Timed Text Working Group
This specification defines DAPT, a TTML-based file format for the exchange of timed text content in dubbing and audio description workflows.
Draft Notes
- Deliverers
- Timed Text Working Group
This document captures technical requirements for a profile of TTML2 for use in workflows related to dubbing and audio description of movies and videos, known as the Dubbing and Audio description Profile of TTML2 (DAPT).