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Synchronized Multimedia Integration Language (SMIL3.0)

W3C Recommendation 01 December 2008

This version:

http://www.w3.org/TR/2008/REC-SMIL3-20081201/

Latest SMIL 3 version:

http://www.w3.org/TR/SMIL3/

Latest SMIL Recommendation:

http://www.w3.org/TR/SMIL/

Previous version:

http://www.w3.org/TR/2008/PR-SMIL3-20081006/

Editors:

Dick Bulterman, CWI - Jack Jansen, CWI - Pablo Cesar, CWI - Sjoerd Mullender, CWI - Eric Hyche, RealNetworks - Marisa DeMeglio, DAISY Consortium - Julien Quint, DAISY Consortium - Hiroshi Kawamura, NRCD - Daniel Weck, NRCD - Xabiel García Pañeda, Universidad de Oviedo - David Melendi, Universidad de Oviedo - Samuel Cruz-Lara, INRIA - Marcin Hanclik ACCESS Co., Ltd - Daniel F. Zucker, Nokia - Thierry Michel, W3C.

Please refer to theerratafor this document, which may include some normative corrections.

This document is also available in a non-normative format:single HTML file.

See alsotranslations.

Copyright© 2008W3C^® (MIT,ERCIM,Keio), All Rights Reserved. W3Cliability,trademarkanddocumentuse rules apply.

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Abstract

This document specifies the third version of the Synchronized MultimediaIntegration Language (SMIL, pronounced "smile"). SMIL 3.0 has the followingdesign goals:

• Define an XML-based language that allows authors to write interactive multimedia presentations. Using SMIL, an author may describe the temporal behaviour of a multimedia presentation, associate hyperlinks with media objects and describe the layout of the presentation on a screen.
• Allow reusing of SMIL syntax and semantics in other XML-based languages, in particular those who need to represent timing and synchronization. For example, SMIL components are used for integrating timing into XHTML[XHTML10] and into SVG[SVG].
• Extend the functionalities contained in the SMIL 2.1[SMIL21] into new or revised SMIL 3.0 modules.
• Define new SMIL 3.0 Profiles incorporating features useful within the industry.

Status of this document

This section describes the status of this document at the time of itspublication. Other documents may supersede this document. A list of currentW3C publications and the latest revision of this technical report can befound in theW3C technical reports indexat http://www.w3.org/TR/.

This document has been reviewed by W3C Members, by software developers, and by other W3C groups and interested parties, and is endorsed by the Director as a W3C Recommendation. It is a stable document and may be used as reference material or cited from another document. W3C's role in making the Recommendation is to draw attention to the specification and to promote its widespread deployment. This enhances the functionality and interoperability of the Web.

This SMIL 3.0 edition is a new version, it extends the functionalitiescontained in SMIL 2.1[SMIL21], incorporating new features useful withinthe industry.

This SMIL3.0 W3C Recommendation supersedes the 13 December 2005 SMIL 21Recommendation[SMIL21].

The SMIL 3.0testsuite along with animplementationreport are publicly released and are intended solely to be used as proofof SMIL 3.0 implementability. It is only a snapshot of the actualimplementation behaviors at one moment of time, as these implementations maynot be immediately available to the public. The interoperability data is notintended to be used for assessing or grading the performance of anyindividual implementation.

This document has been produced by theSYMM Working Group as part oftheW3C Synchronized MultimediaActivity, following the procedures set out for the W3CProcess. The goals of theSYMM Working Group are discussed in theSYMMWorking Group Charter. The authors of this document are the SYMM WorkingGroup members. Different parts of the document have different editors.

Please report errors in this document towww-smil@w3.org - (publicarchives) including the prefix '[SMIL30 REC]' in the subject line.

This document was produced by a group operating under the5 February 2004W3C Patent Policy. W3C maintains apublic list of anypatent disclosures made in connection with the deliverables of the group;that page also includes instructions for disclosing a patent. An individualwho has actual knowledge of a patent which the individual believes containsEssentialClaim(s) must disclose the information in accordance withsection6 of the W3C Patent Policy.