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Résumé Preview

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.


Informations générales

  • État actuel :  Publiée
    Date de publication : 2006-11
  • Edition : 1
  • :
    ISO/IEC JTC 1/SC 29
    Codage du son, de l'image, de l'information multimédia et hypermédia
  • 35.040.40
    Codage des informations audio, vidéo, multimédias et hypermédias

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