MPEG-21 Demonstration

1. Digital Item Builder - Applet

The Digital Item Builder enables you to build simple Digital Items which conform to the MPEG-21 Digital Item specification. The generated digital items may include global descriptors, which enable you to describe the item in a general way, choices, which enable you to select a subset of the available resources (i.e. video files), licenses, which enable you to grant rights to principals and components, which consist of video file references and MPEG-7 and DIA descriptions of the video file.

2. Digital Item Consumer - Applet

The Digital Item Consumer enables you to consume simple digital items (for instance those which have been built with the Digital Item Builder), i.e. you may view video files and their associated meta data. Viewing of video files and meta data is restricted by licenses, meaning that viewing video files and meta data is only possible if the the owner of the digital item has granted you the right to do so.

System Requirements

1. Internet Explorer or Netscape Navigator

You should either use Internet Explorer 6 (or higher) or Netscape Navigator 7 (or higher).
Please take care to restart the Browser if you reuse the application a second time. This a known limitation of the JRE-plugin in Netscape.

2. DivX 5.0.5 MPEG-4 Codec

In order to generate MPEG-21 DIA descriptions, you must install the DivX 5.0.5 MPEG-4 Codec.

3. Java Runtime Environment (JRE) 1.3.7 or higher

Install the latest JRE. Included in the JRE is the Java Plug-in, which establishes a connection between browsers and the Java platform. This connection enables applets on Web sites to be run within a browser on the desktop.
This software will automatically be installed, when the Applet is started.

4. Java Media Framework should be installed

In order to view the video files, you will need (parts of) the Java Media Framework. Instead of installing the hole JMF bundle, it is also possible to only put "jmf.jar" into the "ext"-directory of the JRE. The file jmf.jar is much smaller than the hole JMF bundle.

5. Microsoft XML Core Services should be installed

This services are required for the usage of the Digital Item Consumer. They serve to parse the REL expressions within a Digital Item to be consumed.

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Last updated 26/08/2004.