Systems and methods for playing, browsing and interacting with MPEG-4 coded audio-visual objects

A method of providing an audio-visual object browser that operates on MPEG-4 data having a scene description graph and data related to at least one object, the method comprising:

• providing an audiovisual object demultiplexer and binary format of scene browser for basic user interaction with a user via control signals from at least one user input device;
• interpreting a binary format of scene description graph associated with the MPEG-4 data from the audiovisual object demultiplexer and binary format of scene browser;
• decoding, composing and rendering the interpreted binary format of scene description graph on the audiovisual object demultiplexer and binary format of scene browser;
• providing at least one programmer interface accessible via the audiovisual object demultiplexer and binary format of scene browser for adjusting at least one of the interpreting and the decoding, composing and rendering;
• and
• configuring at least one of the audiovisual object demultiplexer and binary format of scene browser and the binary format of scene description graph interpreter for local user interaction via at least one script obtained from a JavaScript interpreter.

A method of rendering MPEG-4 data having a scene description graph and data related to at least one object, the method comprising:

• interacting with a user through an audiovisual object demultiplexer and binary format of scene browser via a basic user interaction using control signals from at least one input device;
• interpreting a binary format of scene description graph associated with the MPEG-4 data from the audiovisual object demultiplexer and binary format of scene browser;
• decoding, composing and rendering the interpreted binary format of scene description graph on the audiovisual object demultiplexer and binary format of scene browser;
• providing at least one programmer interface accessible via the audiovisual object demultiplexer and binary format of scene browser for adjusting at least one of the interpreting and the decoding, composing and rendering;
• and
• interacting with at least one of the audiovisual object demultiplexer and binary format of scene browser and the binary format of scene description graph interpreter via a local user interaction using at least one script obtained from a JavaScript interpreter.