The Moving Picture Experts Group

FAQ

Standard: MPEG-4
Part	Question
Scene Description and Application Engine	Can the scene description be changed
Scene Description and Application Engine	Can there be multiple scene description streams in an MPEG-4 presentation?
Scene Description and Application Engine	How is interactivity handled in MPEG-4?
Scene Description and Application Engine	Is the MPEG-4 scene description streamed?
Scene Description and Application Engine	The Scene Description looks similar to VRML. Is it?
Video	What are exactly the functionalities that are supported by MPEG-4 Video?
Systems	What are MPEG-4 Systems 'profiles and levels'?
Systems	What are the assumptions of the MPEG-4 timing model?
Video	What are the bitrates that are supported by MPEG-4 Visual?
Video	What are the different profiles supported by MPEG-4 Video?
Video	What are the formats that are supported by MPEG-4 Visual?
Systems	What are the MPEG "object descriptors"?
Systems	What does MPEG-4 demultiplexing mean?
Systems	What does ‘Management of the MPEG-4 Receiving Terminal's Buffer’ mean?
Systems	What is "Intellectual Property" in the context of MPEG-4?
Scene Description and Application Engine	What is BIFS?
Systems	What is meant by IP "Management & Protection"?
Animation Framework eXtension (AFX)	What is Part 16, Animation Framework eXtension (AFX)?
Scene Description and Application Engine	What is the difference between BIFS and VRML?
Systems	What is the MPEG-4 delivery layer?

Standard: MPEG-21
Part	Question
Digital Item Declaration	Can you give an example of a Digital Item?
Digital Item Declaration	How do I declare a Digital Item?
Digital Item Declaration	What does it mean to ‘declare’ a Digital Item?
Digital Item Declaration	What is a Digital Item?

Standard: MPEG-2
Part	Question
Audio	I heard that a Second Edition of MPEG-2 Audio has been approved. What are the reasons behind this revision?
Advanced Audio Coding	Is stream splicing or "break-in" supported in MPEG-2 AAC?
Advanced Audio Coding	Is there any reference software for MPEG-2 AAC?
Software simulation	Is there any reference software for MPEG-2 AAC?
Audio	What are the impacts of the technical changes in the revision to the Technical Report and Conformance documents?
Advanced Audio Coding	What is MPEG-2 AAC?

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