Overview
ISO/IEC TR 23000-1:2007, titled Information technology - Multimedia application format (MPEG-A) - Part 1: Purpose for multimedia application formats, is a technical report published by ISO and IEC. This standard introduces the foundational purpose and rationale behind the MPEG-A family, which aims to enable rapid development of innovative multimedia applications through standardized Multimedia Application Formats (MAFs). Unlike previous MPEG standards that defined profiles within individual technologies, MPEG-A uniquely combines profiles from different MPEG standards-such as MPEG-2 Audio, MPEG-4 Visual, and MPEG-7 metadata-into cohesive application-focused formats.
The primary goal of MPEG-A is to enhance interoperability across various media types at the application level. It achieves this by providing normative specifications supported by reference software, giving vendors a head start in product development based on these combined standards. This document also offers a high-level overview of existing MAFs and the concept for creating new ones.
Key Topics
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Multimedia Application Formats (MAFs): MPEG-A defines these formats by selecting and combining proven tools and profiles from various MPEG standards, crafted to meet specific multimedia application needs.
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Horizontal Integration of MPEG Standards: Unlike traditional MPEG profiles restricted to a single standard, MPEG-A integrates technologies horizontally-merging audio, video, and metadata standards to create comprehensive multimedia application solutions.
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Reference Software: Each MAF comes with reference software implementations to assist manufacturers and developers in experimenting with, and accelerating deployment of, MPEG-A formats.
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Application-driven standardization: MPEG-A’s approach facilitates swift standardization by building on existing, thoroughly tested MPEG technologies instead of developing new codecs or tools from scratch.
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Interoperability and Industry Adoption: By providing ready-made, industry-vetted multimedia formats, ISO/IEC 23000-1 reduces complexity in multimedia product development and fosters compatibility across devices and services.
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Complementing Industry Consortia: MPEG-A aligns with technologies leveraged by industry groups (such as DVD Forum, DVB, ISMA, and ATSC), which often combine MPEG and non-MPEG technologies for commercial multimedia products.
Applications
ISO/IEC TR 23000-1 serves as a key reference for companies and developers focused on building multimedia applications that require robust, interoperable formats. Practical applications include:
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Digital Music Players: The Music Player MAF (ISO/IEC 23000-2) exemplifies MPEG-A usage by combining MP3 audio coding with MPEG-7 metadata within an MPEG-4 container, enhancing user experience with richer metadata such as artist and album information.
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Multimedia Content Distribution: Facilitates the creation of platforms and services that deliver audio, video, and metadata in integrated formats optimized for consumer electronics, streaming, and broadcasting.
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Consumer Electronics: Supports manufacturers in developing products-like digital TVs, DVD players, and media streaming devices-that interoperate across multiple media types and standards effortlessly.
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New Multimedia Services: Encourages innovation by simplifying the integration of emerging media technologies into applications, reducing time to market.
Related Standards
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ISO/IEC 13818 (MPEG-2): Provides foundational audio and video compression technologies widely used in digital television and DVDs.
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ISO/IEC 14496 (MPEG-4): Offers advanced multimedia coding including visual and audio compression, essential for flexible streaming and file formats.
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ISO/IEC 15938 (MPEG-7): Defines multimedia content description interfaces for metadata, aiding in search, indexing, and retrieval of multimedia content.
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ISO/IEC 21000 (MPEG-21): Covers multimedia framework standards facilitating distribution and consumption of digital items including rights management.
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Other MPEG-A Parts: Such as ISO/IEC 23000-2 (Music Player MAF), ISO/IEC 23000-3 (Photo Player MAF), and ISO/IEC 23000-4 (Musical Slide Show MAF), all building on the foundational concepts outlined in ISO/IEC TR 23000-1.
By enabling a structured approach to combining multimedia technologies, ISO/IEC TR 23000-1:2007 offers practical value for developers aiming to leverage MPEG standards in multi-format applications. Its guidance simplifies innovation, product development, and ensures interoperability essential for modern multimedia ecosystems.