MPEG objects and systems and methods for using MPEG objects

摘要

An MPEG object is an object-oriented data structure that may be used in the creation of interactive MPEG video stream. The MPEG object data structure includes an MPEG object interface defining data received by the MPEG object and data output by the MPEG object. The MPEG object data structure further includes either one or more MPEG video elements or an association to one or more MPEG video elements. The MPEG video elements are preferably defined as MPEG slices that include a plurality of encoded macroblocks. Additionally, the data structure may provide a method for receiving input through the MPEG object interface and in response to input from the client device outputting an MPEG video element. In certain configurations, the MPEG object contains a method that maintains state data for the MPEG object. The state data may be used to select between a plurality of MPEG elements to output. In other configurations, the MPEG object includes a method that provides for the control of streaming MPEG content from a source external to the MPEG object.

主权项

1. A tool for creating interactive MPEG content, the tool comprising:
an editor having a scene window allowing a user to create a scene based upon placement of atomic MPEG objects within the scene window; an object tool bar allowing a user to add the atomic MPEG objects to the scene, each of the atomic MPEG objects having a respective plurality of visual states and comprising a respective plurality of graphical elements, each graphical element of the respective plurality of graphical elements corresponding to a respective visual state of the respective plurality of visual states, each of the atomic MPEG objects further comprising code to construct each visual state of the respective plurality of visual states, wherein:
when a respective atomic MPEG object of the atomic MPEG objects is placed within the scene window, user-modifiable properties associated with the respective atomic MPEG object are displayed,the user can create a user-definable script for the respective atomic MPEG object, anda first atomic MPEG object of the atomic MPEG objects represents interactive graphical content; and a format processor comprising hardware for processing the scene into a file format that includes display position information of respective pluralities of graphical elements of the atomic MPEG objects that were added to the scene, so as to allow a stitcher to form a complete MPEG video frame from the respective pluralities of graphical elements, wherein different MPEG frames can be assigned to a respective visual state of the pluralities of visual states.