MPEG-4 Part 11
MPEG-4 Part 11 Scene description and application engine was published as ISO/IEC 14496-11 in 2005. MPEG-4 Part 11 is also known as BIFS, XMT, MPEG-J. It defines:
- the coded representation of the spatio-temporal positioning of audio-visual objects as well as their behaviour in response to interaction ;
- the coded representation of synthetic two-dimensional or three-dimensional objects that can be manifested audibly 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 ;
- and a system level description of an application engine.
Binary Format for Scenes
Binary Format for Scenes 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 is used in Digital Multimedia Broadcasting.
The XMT framework accommodates substantial portions of SMIL, W3C Scalable Vector Graphics and X3D. 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.