ISO/IEC 14496-4:2004/Amd 27:2008
(Amendment)Information technology — Coding of audio-visual objects — Part 4: Conformance testing — Amendment 27: LASeR and SAF extensions conformance
Information technology — Coding of audio-visual objects — Part 4: Conformance testing — Amendment 27: LASeR and SAF extensions conformance
Technologies de l'information — Codage des objets audiovisuels — Partie 4: Essai de conformité — Amendement 27: Conformité des extensions LASeR et SAF
General Information
- Status
- Published
- Publication Date
- 17-Sep-2008
- Current Stage
- 6060 - International Standard published
- Start Date
- 18-Sep-2008
- Due Date
- 10-May-2010
- Completion Date
- 10-May-2010
Relations
- Effective Date
- 06-Jun-2022
- Effective Date
- 15-Apr-2008
Overview
ISO/IEC 14496-4:2004/Amd 27:2008 is an important amendment to the international standard for coding audio-visual objects, specifically enhancing Part 4 which focuses on conformance testing. This amendment introduces the LASeR (Lightweight Application Scene Representation) and SAF (Simple Aggregation Format) extensions conformance, providing updated test sequences and validation criteria essential to ensuring interoperability and compliance in multimedia coding implementations.
Developed by the ISO/IEC Joint Technical Committee JTC 1, Subcommittee SC 29, this amendment is part of the MPEG-4 family of standards and contributes to maintaining rigorous quality and compatibility benchmarks for modern audio-visual data processing systems.
Key Topics
LASeR Extensions: LASeR is designed for efficient representation of rich media applications on resource-constrained devices. This amendment defines conformance testing provisions for LASeR content to ensure correct decoding and rendering.
SAF Extensions: The Simple Aggregation Format supports the packaging and delivery of multimedia content streams. Amendment 27 establishes test protocols for SAF to guarantee standardized handling across platforms.
Additional Test Sequences: The amendment includes a suite of new XML-based test files such as
stz_studio_intro.xml,stz-amd1-parsing-animation.xml, andstz-amd1-parsing-font.xml. These sequences target various functional aspects like animation, font handling, and stream sourcing to validate implementation accuracy.Conformance Criteria: These criteria enable developers and testers to verify that implementations conform to the LASeR and SAF specifications, fostering interoperability between manufacturers and service providers.
Applications
Multimedia Software Development: Developers of audio-visual codecs and player software use this amendment to test LASeR and SAF support, enabling rich media applications with assured compliance.
Device Compatibility Testing: Manufacturers of handheld devices, smart TVs, and set-top boxes utilize the defined test sequences to certify product compatibility with MPEG-4 LASeR/SAF content.
Broadcast and Streaming Services: Providers ensure that multimedia content encoded with LASeR/SAF extensions is correctly processed and displayed across diverse user platforms by adhering to conformance standards.
Quality Assurance: QA teams leverage the standardized test files to systematically evaluate software and hardware decoding accuracy, minimizing errors and ensuring user experience consistency.
Related Standards
ISO/IEC 14496 (MPEG-4) Series: The core suite of standards covering coding of audio-visual objects, encompassing multiple parts including systems, video, audio, and conformance.
ISO/IEC 14496-1: Systems - outlining the foundation for multiplexing multimedia streams.
ISO/IEC 14496-12: ISO base media file format - relevant for understanding container structures used alongside LASeR and SAF content.
Other MPEG Multimedia Extensions: Various other MPEG standards complement this amendment by addressing different coding and delivery aspects, ensuring a cohesive multimedia ecosystem.
By adhering to ISO/IEC 14496-4:2004/Amd 27:2008, stakeholders in the multimedia field can achieve standardized, interoperable, and reliable implementations of rich media applications leveraging LASeR and SAF formats. This contributes significantly to the advancement of consistent audio-visual content delivery across devices and platforms worldwide.
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Frequently Asked Questions
ISO/IEC 14496-4:2004/Amd 27:2008 is a standard published by the International Organization for Standardization (ISO). Its full title is "Information technology — Coding of audio-visual objects — Part 4: Conformance testing — Amendment 27: LASeR and SAF extensions conformance". This standard covers: Information technology — Coding of audio-visual objects — Part 4: Conformance testing — Amendment 27: LASeR and SAF extensions conformance
Information technology — Coding of audio-visual objects — Part 4: Conformance testing — Amendment 27: LASeR and SAF extensions conformance
ISO/IEC 14496-4:2004/Amd 27:2008 is classified under the following ICS (International Classification for Standards) categories: 35.040 - Information coding; 35.040.40 - Coding of audio, video, multimedia and hypermedia information. The ICS classification helps identify the subject area and facilitates finding related standards.
ISO/IEC 14496-4:2004/Amd 27:2008 has the following relationships with other standards: It is inter standard links to ISO/IEC 14496-4:2004; is excused to ISO/IEC 14496-4:2004. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
ISO/IEC 14496-4:2004/Amd 27:2008 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
Standards Content (Sample)
INTERNATIONAL ISO/IEC
STANDARD 14496-4
Second edition
2004-12-15
AMENDMENT 27
2008-10-01
Information technology — Coding of
audio-visual objects —
Part 4:
Conformance testing
AMENDMENT 27: LASeR and SAF
extensions conformance
Technologies de l'information — Codage des objets audiovisuels —
Partie 4: Essai de conformité
AMENDEMENT 27: Conformité des extensions LASeR et SAF
Reference number
ISO/IEC 14496-4:2004/Amd.27:2008(E)
©
ISO/IEC 2008
ISO/IEC 14496-4:2004/Amd.27:2008(E)
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...
INTERNATIONAL ISO/IEC
STANDARD 14496-4
Second edition
2004-12-15
AMENDMENT 27
2008-10-01
Information technology — Coding of
audio-visual objects —
Part 4:
Conformance testing
AMENDMENT 27: LASeR and SAF
extensions conformance
Technologies de l'information — Codage des objets audiovisuels —
Partie 4: Essai de conformité
AMENDEMENT 27: Conformité des extensions LASeR et SAF
Reference number
ISO/IEC 14496-4:2004/Amd.27:2008(E)
©
ISO/IEC 2008
ISO/IEC 14496-4:2004/Amd.27:2008(E)
PDF disclaimer
This PDF file may contain embedded typefaces. In accordance with Adobe's licensing policy, this file may be printed or viewed but
shall not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing. In
downloading this file, parties accept therein the responsibility of not infringing Adobe's licensing policy. The ISO Central Secretariat
accepts no liability in this area.
Adobe is a trademark of Adobe Systems Incorporated.
Details of the software products used to create this PDF file can be found in the General Info relative to the file; the PDF-creation
parameters were optimized for printing. Every care has been taken to ensure that the file is suitable for use by ISO member bodies. In
the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below.
© ISO/IEC 2008
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means,
electronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or
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ii © ISO/IEC 2008 – All rights reserved
ISO/IEC 14496-4:2004/Amd.27:2008(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies
(ISO member bodies). The work of preparing International Standards is normally carried out through ISO
technical committees. Each member body interested in a subject for which a technical committee has been
established has the right to be represented on that committe
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