ISO/IEC 14496-5:2001/Amd 28:2011 PDF

Overview

ISO/IEC 14496-5:2001/Amd 28:2011 is an amendment to the international standard ISO/IEC 14496-5, developed by the joint technical committee ISO/IEC JTC 1. This amendment introduces reference software for LASeR adaptation tools as part of the coding framework for audio-visual objects. LASeR (Lightweight Application Scene Representation) adaptation tools facilitate dynamic and static scene adaptation for multimedia content in compliance with device capabilities such as display size and memory constraints.

The amendment includes updated reference software, comprising a LASeR file parser and a LASeR player, along with detailed guidance on how to compile, run, and test these tools. This supports developers and organizations in implementing dynamic content adaptation aligned with the ISO/IEC 14496 multimedia coding standards.

Key Topics

• LASeR Adaptation Tools Reference software includes:

  • LASeR file parser for managing scene trees and events from LASeR XML files.
  • LASeR player that renders and plays LASeR scenes with adaptation capabilities.

• Static Adaptation Enables the rendering of scenes adapted to fixed device parameters such as:

  • Display size (e.g., 7 inch, 640x480 resolution)
  • Available memory size (e.g., 80,000 Kbytes)

• Dynamic Adaptation Supports runtime scene adaptation to changing device capabilities like resizing windows or modifying memory availability during playback or interaction.

• Implementation Guidance Step-by-step instructions assist with:

  • Unpacking and building the software using Microsoft Visual Studio 2008 on Windows XP or later.
  • Running the LASeRPlayer application and testing adaptation features using sample XML files.

• Reference Software Updates Changes include additions to system directories, parser and renderer integration, and annex restructuring to incorporate new informative guidance on LASeR adaptation tools.

Applications

• Multimedia Content Delivery Enables robust coding and rendering of adaptive scenes for diverse devices, improving the user experience across platforms with varying hardware capabilities.

• Interactive Systems Supports dynamic adaptation in interactive multimedia applications such as e-learning, digital signage, and mobile content services where device conditions change during sessions.

• Device Compatibility Ensures multimedia applications comply with different display sizes and memory restrictions, facilitating wider distribution and interoperability.

• Software Development Provides developers with a tested reference implementation, accelerating the integration of LASeR adaptation tools into commercial and open-source multimedia frameworks.

Related Standards

• ISO/IEC 14496 (MPEG-4) The broader standard for coding audio-visual objects, comprising multiple parts addressing video, audio, scene description, and software.

• ISO/IEC 14496-20:2008/Amd.2:2010 Details the LASeR adaptation tools and framework that Amendment 28 builds upon through reference software enhancements.

• ISO/IEC JTC 1/SC 29 The subcommittee responsible for coding of audio, picture, multimedia, and hypermedia information, which oversees development and maintenance of related standards.

Keywords: ISO/IEC 14496-5 Amendment 28, LASeR adaptation tools, LASeR player, LASeR file parser, multimedia coding, dynamic adaptation, static adaptation, reference software, audio-visual objects, interactive multimedia, device capability adaptation, ISO multimedia standards.