MPEG-4 Part 11
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MPEG-4 Part 11 Scene description and application engine was published as ISO/IEC 14496-11 in 2005.[1] MPEG-4 Part 11 is also known as BIFS, XMT, MPEG-J.[2][3] It defines:
- the coded representation of the spatio-temporal positioning of audio-visual objects as well as their behaviour in response to interaction (scene description);
- the coded representation of synthetic two-dimensional (2D) or three-dimensional (3D) objects that can be manifested audibly and/or visually;
- the Extensible MPEG-4 Textual (XMT) format - a textual representation of the multimedia content described in MPEG-4 using the Extensible Markup Language (XML);
- and a system level description of an application engine (format, delivery, lifecycle, and behaviour of downloadable Java byte code applications). (The MPEG-J Graphics Framework eXtensions (GFX) is defined in MPEG-4 Part 21 - ISO/IEC 14496-21.[4])
Binary Format for Scenes (BIFS) is a binary format for two- or three-dimensional audiovisual content. It is based on VRML and part 11 of the MPEG-4 standard.
BIFS is MPEG-4 scene description protocol to compose MPEG-4 objects, describe interaction with MPEG-4 objects and to animate MPEG-4 objects.
MPEG-4 Binary Format for Scene (BIFS) is used in Digital Multimedia Broadcasting (DMB).[5]
The XMT framework accommodates substantial portions of SMIL, W3C Scalable Vector Graphics (SVG) and X3D (the new name of VRML). Such a representation can be directly played back by a SMIL or VRML player, but can also be binarised to become a native MPEG-4 representation that can be played by an MPEG-4 player. Another bridge has been created with BiM (Binary MPEG format for XML).[6]
See also
- MPEG-4 Part 20 (LASER)
- Scalable Vector Graphics (SVG)
- MPEG-7 - Multimedia content description interface
References
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External links
- ISO/IEC 14496-11:2005 - Information technology -- Coding of audio-visual objects -- Part 11: Scene description and application engine
- MPEG-4 BIFS White Paper
- MPEG-4 Systems General Issues - July 2001
- Audio Bifs version 3 - October 2006, ISO/IEC JTC1/SC29/WG11
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