Publication detail

Reference

ISO/IEC 14496-21 ed1.0

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Title

Information technology -- Coding of audio-visual objects -- Part 21: MPEG-J Graphics Framework eXtensions (GFX)

Publication date

2006-11-22

Format, price
(Swiss francs)
and language

	140.-		38 pages
	140.-		3329 Kb

Abstract

ISO/IEC 14496-21:2006 describes a lightweight programmatic environment for advanced interactive multi-media applications. Designed for limited resources devices such as mobile phones, Graphics Framework eXtenstions (GFX) offer a framework that marries a subset of the MPEG standard Java application environment (MPEG-J) with a Java API for accessing 3D renderers, and with other standard Java APIs from a selected profile. The framework enables developers to create applications that combine MPEG audio and video streams, with 3D graphics rendering and user interaction. Applications can use advanced special effects in the graphics presentation such as mapping video as a texture.

GFX applications, also called MPEGlets, follow the well-known design of MIDlets on J2ME platforms and reuse familiar media APIs from these platforms such as JSR-135 Mobile Media API. On the rendering side, GFX provides a pluggable renderer architecture that allows use of renderers such as Java bindings to OpenGL ES (JSR-239) or Mobile 3D Graphics (JSR-184). By allowing choice of low-level rendering APIs, developers are free to design optimized rendering algorithms for the needs of their applications and use dedicated application-specific formats for their assets, as do all highly interactive applications.

Reusing existing mobile APIs, most Java applications currently used on mobile devices may be easily ported to a system using GFX. A GFX implementation is an ultra-thin layer of several class and interface definitions over standard Java and MPEG-J APIs. When added to any existing Java graphics API, the overhead is minimal.

Technical Committee

JTC 1/SC 29 - Coding of audio, picture, multimedia and hypermedia information

ICS Codes

35.040

Character sets and information coding
*Including coding of audio, picture, multimedia and hypermedia information, IT security techniques, encryption, bar coding, electronic signatures, etc.

Work in progress

Project	Stage code	Forecast publication date
No project under development	-	-

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