ISO/IEC 23000-2:2008 情報技術—マルチメディアアプリケーションフォーマット（MPEG-A）—パート2：MPEG音楽プレーヤーアプリケーションフォーマット | ページ 2

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.

ISO/IEC 23000-2 was prepared by Joint Technical Committee ISO/IEC JTC 1, Information technology, Subcommittee SC 29, Coding of audio, picture, multimedia and hypermedia information.

This second edition cancels and replaces the first edition (ISO/IEC 23000-2:2006), which has been technically revised.

ISO/IEC 23000 consists of the following parts, under the general title Information technology — Multimedia application format (MPEG-A):

• Part 1: Purpose for multimedia application formats [Technical Report]
• Part 2: MPEG music player application format
• Part 3: MPEG photo player application format
• Part 4: Musical slide show application format
• Part 5: Media streaming application format
• Part 7: Open access application format
• Part 8: Portable video application format
• Part 9: Digital multimedia broadcasting application format
• Part 10: Video surveillance application format

This corrected version of ISO/IEC 23000-2:2008 incorporates the following corrections: the provision of a CD-ROM containing reference software for multimedia application format; an updated list of parts in the Foreword.

Introduction

MPEG has developed a number of standards, all of which strive to serve the needs of consumers and industry. Among those are MPEG-4, a next-generation suite of standards for media compression, and MPEG-7, a suite of standards for meta-data representation. MPEG-4 specifies what MPEG expects to be another very successful specification, the MPEG-4 File Format, while MPEG-7 specifies not only signal-derived meta-data, but also archival meta-data such as Artist, Album and Song Title.

As such, MPEG-4 and MPEG-7 represent an ideal environment to support the current “MP3 music library” user experience, and, moreover, to extend that experience in new directions.

Firstly, this part of ISO/IEC 23000 shows how to carry MP3 information (music and meta-data) within the MPEG-4 and MPEG-7 framework. Moving MP3 into the MPEG-4 world supports, as a baseline, everything that users know and expect, but offers the capability to deliver a much richer music experience with components of MPEG-4, MPEG-7 and MPEG-21 at our disposal.

Secondly, this part of ISO/IEC 23000 builds on the music player and extends it to the Protected Music Player for both mp4 and mp21 file types including (1) mp4 file as protected content format with fixed encryption, without key management components and (2) protected mp21 file with flexible tool selection and key management components.

This part of ISO/IEC 23000 contains conformance and reference software.

1 Scope

This part of ISO/IEC 23000 presents a basic architecture for constructing an annotated music library. It defines a simple file format for songs and a file format for albums and playlists. A conformant player application has to support all these specified file formats.

2 Normative references

The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.

Bibliography