PostScript (18 KB)
Word (14 KB)MPEG-4 Interaction Model and Required Normative Support
Contribution M2888, 41st MPEG Meeting, Fribourg, Switzerland, October 1997
Introduction
Interactivity is very prominently placed in current MPEG-4 activity. However, a well-defined interaction model (which affects several other design decisions) is not specified. Existing standards such as DSM-CC and RTSP support traditional vcr-type interactivity to re-position a media stream during playback. As MPEG-4 intends to support new forms of application specific interactivity, a more complete interactivity model is necessary. The interaction model discussed in this document tries to capture the interactivity requirements and behavior of MPEG-4 presentations.