ISO/IEC 15938-7:2003/Amd 1:2005

Information technology — Multimedia content description interface — Part 7: Conformance testing — Amendment 1: Conformance extensions

Technologies de l'information — Description de l'interface du contenu multimédia — Partie 7: Essais de conformité — Amendement 1: Extensions de conformité

General Information

• Status: Published
• Publication Date: 12-Jul-2005
• ICS: 35.040 - Information coding
• ICS: 35.040.40 - Coding of audio, video, multimedia and hypermedia information
• Technical Committee: ISO/IEC JTC 1/SC 29 - Coding of audio, picture, multimedia and hypermedia information
• Drafting Committee: ISO/IEC JTC 1/SC 29 - Coding of audio, picture, multimedia and hypermedia information
• Current Stage: 6060 - International Standard published
• Start Date: 13-Jul-2005
• Due Date: 13-Jun-2005
• Completion Date: 13-Jun-2005

Relations

• Amends: ISO/IEC 15938-7:2003 - Information technology — Multimedia content description interface — Part 7: Conformance testing
• Effective Date: 06-Jun-2022
• Child: ISO/IEC 15938-7:2003 - Information technology — Multimedia content description interface — Part 7: Conformance testing
• Effective Date: 15-Apr-2008

Overview

ISO/IEC 15938-7:2003/Amd 1:2005 is an essential amendment to the multimedia content description interface standard, focusing specifically on conformance testing and conformance extensions. This amendment enhances the original Part 7 of ISO/IEC 15938-7 by expanding test definitions and updating conformance bitstreams to ensure that multimedia content descriptions and their implementations comply with the latest technical specifications. Developed by the joint ISO/IEC technical committee (JTC 1, SC 29), it supports robust interoperability and quality assurance in multimedia content handling.

Key Topics

• Conformance Extensions: This amendment adds significant extensions to the definitions of reference textual and binary access unit forms. These extensions facilitate dynamic insertion of elements, optimized decoder initialization, fragment referencing, and support for mixed content models.

• Reference Access Unit Descriptions: Enhancements include:

  • FUContext for dynamic insertion using insert commands and rational position codes.
  • FU payloads addressing deferred and non-deferred fragment references.
  • Support for multiple assignment and dynamically configurable optimized decoders.

• Conformance Bitstreams Updates:

  • Additions to Systems BiM and TeM conformance bitstreams.
  • Introduction of new bitstreams to verify compliance with advanced multimedia description scenarios such as uniform and non-uniform quantization, XML context path variations, and rational position coding.

• Naming Schemes for Conformance Descriptions: New naming conventions for visual, audio, and multimedia description schemes have been formalized to standardize identification and testing processes. These include descriptors for video features (e.g., Color Temperature, Advanced Face Recognition) and audio parameters (e.g., Audio BPM, Background Noise Level).

Applications

• Multimedia Content Verification: The standard provides critical test resources and guidelines for vendors and developers to verify that multimedia description systems conform to standardized interfaces, ensuring seamless integration and operation across platforms.

• Decoder Implementation Testing: By including optimized decoder initialization and fragment referencing tests, this amendment supports thorough validation of multimedia decoders, improving playback reliability and performance in diverse environments.

• Interoperability Assurance: Organizations can leverage the updated conformance bitstreams to certify that their products communicate effectively with others conforming to the ISO/IEC 15938 family, reducing compatibility issues.

• Quality Control in Multimedia Production: Media producers and broadcasters can utilize the conformance frameworks to validate the accuracy and completeness of media metadata descriptions, critical for content management and retrieval systems.

Related Standards

• ISO/IEC 15938 (MPEG-7): The parent standard focusing on multimedia content description interfaces, which facilitates the standardized annotation and indexing of multimedia elements.

• ISO/IEC JTC 1/SC 29 Series: Including standards on audio, video, and multimedia coding (e.g., MPEG audio and video coding standards) that complement the conformance testing frameworks.

• Multimedia Metadata Standards: Other related metadata standards such as Dublin Core and MPEG-21 also benefit from interoperability validated by conformance provisions outlined in this amendment.

Summary

ISO/IEC 15938-7:2003/Amd 1:2005 extends and enriches the conformance testing capabilities for multimedia content description interfaces, providing detailed methods for verifying compliance of multimedia metadata structures and decoders. This amendment supports dynamic content handling, optimized decoder configurations, and a comprehensive library of conformance bitstreams useful for developers, implementers, and quality assurance specialists in the multimedia technology sector. Adhering to this standard ensures high-quality interoperable multimedia applications, essential in today’s diverse digital media ecosystems.

Keywords: ISO/IEC 15938-7 amendment, multimedia content description, conformance testing, BiM bitstreams, TeM bitstreams, decoder initialization, multimedia metadata compliance, MPEG-7 conformance, multimedia interoperability, digital media quality assurance

Standards Content (Sample)

INTERNATIONAL ISO/IEC
STANDARD 15938-7
First edition
2003-12-01
AMENDMENT 1
2005-07-15
Information technology — Multimedia
content description interface —
Part 7:
Conformance testing
AMENDMENT 1: Conformance extensions
Technologies de l'information — Description de l'interface du contenu
multimédia —
Partie 7: Essais de conformité
AMENDEMENT 1: Extensions de conformité

Reference number
ISO/IEC 15938-7:2003/Amd.1:2005(E)
©
ISO/IEC 2005
ISO/IEC 15938-7:2003/Amd.1:2005(E)
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ii © ISO/IEC 2005 – All rights reserved

ISO/IEC 15938-7:2003/Amd.1:2005(E)
Foreword
ISO (the International Organization for Standardization) and IEC (the International Electrotechnical
Commission) form the specialized system for worldwide standardization. National bodies that are members of
ISO or IEC participate in the development of International Standards through technical committees
established by the respective organization to deal with particular fields of technical activity. ISO and IEC
technical committees collaborate in fields of mutual interest. Other international organizations, governmental
and non-governmental, in liaison with ISO and IEC, also take part in the work. In the field of information
technology, ISO and IEC have established a joint technical committee, ISO/IEC JTC 1.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of the joint technical committee is to prepare International Standards. Draft International
Standards adopted by the joint technical committee are circulated to national bodies for voting. Publication as
an International Standard requires approval by at least 75 % of the national bodies casting a vote.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. ISO and IEC shall not be held responsible for identifying any or all such patent rights.
Amendment 1 to ISO/IEC 15938-7:2003 was prepared by Joint Technical Committee ISO/IEC JTC 1,
Information technology, Subcommittee SC 29, Coding of audio, picture, multimedia and hypermedia
information.
© ISO/IEC 2005 – All rights reserved iii

ISO/IEC 15938-7:2003/Amd.1:2005(E)

Information technology — Multimedia content description
interface —
Part 7:
Conformance testing
AMENDMENT 1: Conformance extensions
In subclause 5.6.3, Definition of Reference Textual Access Unit Form Descriptions, add the following items to
the list:
ƒ FUContext: dynamic insertion of elements using insert command
ƒ FU payload: deferred and non deferred fragment references

In subclause 5.9.2, Definition of Reference Binary Access Unit Form Descriptions, add the following items to
list to the list:
ƒ DecoderInit: Optimized decoder initialisation, fragment references and multiple payload with rationale position
codes
ƒ FUContext: dynamic insertion of elements using rationale position codes
ƒ FU context: mixed content model
ƒ FU payload: dynamical configurable optimized decoders
ƒ FU payload: multiple assignment of optimized decoders for a single type
ƒ FU payload: mixed content model
ƒ FU payload: deferred and non deferred fragment references

In subclause 6.5.1.1, Systems BiM Conformance Bitstreams, add the following items to Table 1 and
corresponding bitstreams:
Table 1 summarizes the Systems BiM conformance bistreams.
© ISO/IEC 2005 – All rights reserved 1

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