Status : Withdrawn

This standard has been revised by ISO/IEC 14496-20:2008

Abstract

ISO/IEC 14496-20:2006 defines a scene description format (LASeR) and an aggregation format (SAF) suitable for representing and delivering rich-media services to resource-constrained devices such as mobile phones. A rich media service is a dynamic, interactive collection of multimedia data such as audio, video, graphics, and text. Services range from movies enriched with vector graphic overlays and interactivity (possibly enhanced with closed captions) to complex multi-step services with fluid interaction and different media types at each step.

LASeR aims at fulfilling all the requirements of rich-media services at the scene description level. LASeR supports:

  • an optimized set of objects inherited from SVG to describe rich-media scenes;
  • a small set of key compatible extensions over SVG;
  • the ability to encode and transmit a LASeR stream and then reconstruct SVG content;
  • dynamic updating of the scene to achieve a reactive, smooth and continuous service;
  • simple yet efficient compression to improve delivery and parsing times, as well as storage size, one of the design goals being to allow both for a direct implementation of the SDL as documented, as well as for a decoder compliant with ISO/IEC 23001-1 to decode the LASeR bitstream;
  • an efficient interface with audio and visual streams with frame-accurate synchronization;
  • use of any font format, including the OpenType industry standard; and
  • easy conversion from other popular rich-media formats in order to leverage existing content and developer communities.

General information

  • Status
     : Withdrawn
    Publication date
     : 2006-06
    Stage
    : Withdrawal of International Standard [95.99]
  • Edition
     : 1
    Number of pages
     : 142
  • Technical Committee :
    ISO/IEC JTC 1/SC 29
    ICS :
    35.040.40 
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