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Chapter 5. MPEG-J: MPEG-4 and Java > Application Scenarios

5.3. Application Scenarios

Because MPEG-J uses Java, a rich programming language, the applications possible are limited only by the ingenuity of the content creator.[13] The real challenge ahead is to provide intelligent authoring tools for creating MPEG-J content. Such authoring tools would provide a set of high-level constructs that could generate at least part of the Java byte code automatically to embed along with the content. Some MPEG-J application scenarios are presented in the following sections.

[13] Within the bounds of the MPEG-J architecture.

5.3.1. Adaptive Rich Media Content for Wireless Devices

In this context, adaptation refers to varying network and workload conditions. Although adaptation is a generic functionality that refers to terminals and networks of any power and speed, it is particularly useful for terminals with low capabilities, including PDAs connected with mobile phones and integrated devices (mobile and PDA). In a scenario where different power devices and wireless networks (e.g., GSM, GPRS, UMTS) coexist, content providers may want to decide which parts of the scenes they want to sacrifice and which are essential for the message they want to convey. Without an MPEG-J programmatic control, this decision would be left to the terminal or to a gateway between the server and the terminal.


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