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Synchronized Multimedia Integration Language (SMIL2.1)

W3C Recommendation 13 December 2005

This version:

http://www.w3.org/TR/2005/REC-SMIL2-20051213/

Latest SMIL 2 version:

http://www.w3.org/TR/SMIL2/

Latest SMIL Recommendation:

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

Previous version:

http://www.w3.org/TR/2005/PR-SMIL2-20050927/

Editors:

Dick Bulterman, CWI - Guido Grassel, Nokia - Jack Jansen, CWI - Antti Koivisto, Nokia - Nabil Layaïda, INRIA - Thierry Michel, W3C - Sjoerd Mullender, CWI - Daniel Zucker, Access Co., Ltd.

This document is also available in these non-normative formats: XML.Thisdocument is also available in these non-normative formats:single HTML file,zip archive.

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

Copyright©2005W3C^® (MIT,ERCIM,Keio), All Rights Reserved. W3Cliability,trademarkanddocumentuse rules apply.

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Abstract

This document specifies the second version of the Synchronized MultimediaIntegration Language (SMIL, pronounced "smile"). SMIL 2.1 has the followingdesign goals:

• Define an XML-based language that allows authors to write interactive multimedia presentations. Using SMIL, an author can 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 2.0[SMIL20] into new or revised SMIL 2.1 modules.
• Define new SMIL 2.1 Mobile Profiles incorporating features useful within the mobile 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 is aRecommendationof the W3C. It has been reviewed by W3C Members and other interested partiesand has been endorsed by the Director as a W3C Recommendation. It is a stabledocument and may be used as reference material or cited as a normativereference from another document. W3C's role in making the Recommendation isto draw attention to the specification and to promote its widespreaddeployment. This enhances the functionality and interoperability of theWeb.

This SMIL 2.1 edition is anew version, it extends thefunctionalities contained in SMIL 2.0[SMIL20], incorporating new featuresuseful within the mobile industry.
This SMIL 2.1 W3C Recommendation supersedes the07 January 2005 SMIL 2.0Recommendation (Second Edition)[SMIL20].

The SMIL 2.1testsuite along with animplementationreport are publicly released and are intended solely to be used as proofof SMIL 2.1 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 patent policy for this document is the5 February 2004W3C Patent Policy. Patent disclosures relevant to this specification maybe found on theSYMMWorking Group's patent disclosure page.

An individual who has actual knowledge of a patent which the individualbelieves contains Essential Claim(s) with respect to this specificationshould disclose the information in accordance withsection6 of the W3C Patent Policy.

The authors of this document are the SYMM Working Group members. Differentparts of the document have different editors.

Please report errors in this document towww-smil@w3.org - (public archives)including the prefix'[SMIL21 REC]' in the subject line.