1. About SMIL 3.0

This section is informative.

This document specifies the third version of the Synchronized Multimedia Integration Language (SMIL, pronounced "smile"). SMIL 3.0 has the following design goals:

• Define an XML-based language that allows authors to write interactive multimedia presentations. Using SMIL 3.0, an author can describe the temporal behavior of a multimedia presentation, associate hyperlinks with media objects and describe the layout of the presentation on a screen.
• Allow reusing of SMIL 3.0 syntax and semantics in other XML-based languages, in particular those who need to represent timing and synchronization. For example, SMIL 3.0 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 Mobile Profiles incorporating features useful within the industry.

SMIL 3.0 is defined as a set of markup modules, which define the semantics and an XML syntax for certain areas of SMIL functionality.

This section is informative.

This specification is structured as a set of sections, each defining one or more modules:

• Section 2 presents SMIL 3.0 modularization, the individual modules and conformance criteria.
• Section 3 defines the SMIL 3.0 Animation Modules.
• Section 4 defines the SMIL 3.0 Content Control Modules.
• Section 5 defines the SMIL 3.0 Layout Modules.
• Section 6 defines the SMIL 3.0 Linking Modules.
• Section 7 defines the SMIL 3.0 Media Object Modules.
• Section 8 defines the SMIL 3.0 SMILText Module.
• Section 9 defines the SMIL 3.0 Metainformation Module.
• Section 10 defines the SMIL 3.0 Structure Module.
• Section 11 defines the SMIL 3.0 Timing and Synchronization Modules.
• Section 12 defines the SMIL 3.0 Time Manipulations Module.
• Section 13 the SMIL 3.0 External Timing Module.
• Section 14 defines the SMIL 3.0 DOM.
• Section 15 defines the SMIL 3.0 State Modules.
• Section 16 defines the SMIL 3.0 Transition effects Modules.

This specification also defines seven Profiles that are built using the above SMIL 3.0 modules.

• Section 17 defines the SMIL 3.0 Language Profile.
• Section 18 defines the SMIL 3.0 Mobile Profile.
• Section 19 defines the SMIL 3.0 Extented Mobile Profile.
• Section 20 defines the SMIL 3.0 Basic Profile and Scalability Framework.
• Section 21 defines the SMIL 3.0 Daisy Profile.
• Section 22 defines the SMIL 3.0 Server Playlist Profile.
• Section 23 defines the SMIL 3.0 Set-top Box Profile.

This section is informative.

SMIL 3.0 is a new version. It is build on top of SMIL 2.1.
A large number of SMIL 2.1 Modules [SMIL21-modules] remain the same in SMIL 3.0.
SMIL 3.0 introduces new SMIL 3.0 Modules with extented functionalities.

SMIL 3.0 also defines three new profiles that are built using the SMIL 3.0 modules specified in this specification.

If this specification is approved as a W3C Recommendation, it will supersede the 13 December 2005 version of the SMIL 2.1 Recommendation [SMIL21].

Note: SMIL document players, those applications that support playback of "application/smil+xml" documents, and host language conformant document profiles must support the deprecated SMIL 2.1 functionalities as well as the new SMIL 3.0 functionalities.

This section is informative.

1- The following sections remain unchanged from SMIL 2.1 [SMIL21].

The modules, elements and attributes semantics in the following sections remain the same as in SMIL2.1.
The following sections links are the equivalent sections of the SMIL 2.1 Recommendation [SMIL21].

• SMIL 3.0 Animation Modules.
• SMIL 3.0 Structure Module.
• SMIL 3.0 Time Manipulations Module.
• SMIL 3.0 Transition effects Modules.
• SMIL 3.0 Mobile Profile.
• SMIL 3.0 Extented Mobile Profile.
• SMIL 3.0 Basic Profile and Scalability Framework.

2- The following sections are updated from SMIL 2.1 [SMIL21].

In these sections, updated or new modules are introduced where new and updated elements or attributes semantics are specified. The Language Profile has also been updated:

• SMIL 3.0 Content Control Modules.
• SMIL 3.0 Layout Modules.
• SMIL 3.0 Linking Modules.
• SMIL 3.0 Media Object Modules.
• Modularization and conformance criteria.
• SMIL 3.0 Metainformation Module.
• SMIL 3.0 Timing and Synchronization Modules.
• SMIL 3.0 Language Profile. (not yet updated)
• Appendix A : SMIL 3.0 DTDs. (not yet updated)

3- The following sections are new in SMIL 3.0.

• SMIL 3.0 SmilText Module.
• SMIL 3.0 External Timing Modules.
• SMIL 3.0 DOM.
• SMIL 3.0 State Modules.
• SMIL 3.0 Daisy Profile.
• SMIL 3.0 Server Playlist Profile
• SMIL 3.0 Set-Top Box Profile