ISO IEC 23001-15-2019 PDF

Full title and description

Information technology — MPEG systems technologies — Part 15: Carriage of web resources in ISOBMFF. Defines how web resources (HTML, JavaScript, CSS and related assets) are stored and identified in the ISO Base Media File Format (ISOBMFF) and describes brands and signaling mechanisms to enable delivery and synchronized consumption of web content together with timed media.

Abstract

This standard specifies the use of the ISO/IEC 14496-12 (ISO Base Media File Format) to carry web resources (HTML, JavaScript, CSS, etc.). It defines file brands and file-type signalling for files that carry web resources, describes hypothetical processing models for consumption by web user agents, and specifies how required web capabilities and profiles can be signalled (for example via a dedicated MIME box). The document addresses delivery modes supported by ISOBMFF (file download, progressive download, streaming and broadcast) and focuses on carriage and signaling rather than defining web-data profiles themselves.

General information

• Status: Published (active standard; under periodic review)
• Publication date: 20 December 2019
• Publisher: ISO / IEC (ISO/IEC JTC 1/SC 29)
• ICS / categories: 35.040.40 (Coding of audio, video, multimedia and hypermedia information)
• Edition / version: Edition 1 (2019)
• Number of pages: 19

Scope

Specifies the method for storing web resources inside ISOBMFF files and the associated signalling needed so receivers (including web browsers and players) can recognize, access and process those resources in synchrony with timed media. The scope covers file branding, the structure of boxes used to carry MIME and capability information, and hypothetical consumption models; it does not define specific web-data profiles, codecs or browser feature sets themselves.

Key topics and requirements

• Use of ISO/IEC 14496-12 (ISOBMFF) structure to store web resources such as HTML, JavaScript and CSS.
• Definition of file brands and file-type signalling to identify ISOBMFF files that carry web resources.
• Specification of a MIME-style signalling mechanism (e.g., a dedicated MIME box) for indicating types and required web profiles/capabilities.
• Hypothetical processing model describing how a web user agent or player could consume and execute/interpret packaged web resources in sync with timed media.
• Guidance for delivery modes supported by ISOBMFF: complete file download, progressive download, streaming and broadcast.
• Rules for packaging resources and metadata so that synchronization and dependency information between media tracks and web resources is preserved.
• Interoperability considerations with existing ISOBMFF mechanisms (file-type box, brands, box hierarchy) and registration authorities.
• Reference to signaling approaches compatible with other standards (allows profiles defined by other organizations to be signalled without defining those profiles here).

Typical use and users

Used by content packagers, media and streaming service providers, and application developers who need to deliver synchronized timed media and web-based interactive resources in a single packaging format. Browser vendors, media players, CDN engineers, device manufacturers, and standards implementers use the standard to ensure consistent packaging, signaling and playback behaviour when web resources are packaged inside ISOBMFF files.

Related standards

Key related standards and specifications include ISO/IEC 14496-12 (ISO Base Media File Format / ISOBMFF), ISO/IEC 14496-30 (timed text and overlay signalling mechanisms in ISOBMFF), other parts of ISO/IEC 23001 (MPEG systems technologies, e.g., common encryption and carriage-related parts), and MPEG-A / CMAF (ISO/IEC 23000-19) where packaging and streaming interoperability is relevant. The standard also references applicable Internet specifications (for example URI syntax and MIME semantics).

Keywords

ISOBMFF, ISO/IEC 23001-15, web resources, HTML packaging, JavaScript, CSS, file brands, file-type box, MIME box, synchronization, ISOBMFF carriage, MPEG systems, streaming packaging, CMAF, 14496-12

FAQ

Q: What is this standard?

A: ISO/IEC 23001-15:2019 is a part of the MPEG systems technologies family that defines how web resources (HTML, JavaScript, CSS, etc.) are carried inside ISO Base Media File Format (ISOBMFF) files, how such files are branded and how required web capabilities can be signalled.

Q: What does it cover?

A: It covers packaging and signalling rules for embedding web resources in ISOBMFF, delivery considerations (download, progressive download, streaming, broadcast), and a hypothetical processing model for consumption by user agents. It explicitly does not define specific web-data profiles or browser feature sets — only their carriage and signalling.

Q: Who typically uses it?

A: Content packagers, streaming and broadcast service engineers, CDN and platform implementers, browser and player developers, and standards or interoperability test teams use this standard to ensure consistent packaging and playback of combined web and timed-media content.

Q: Is it current or superseded?

A: The standard was published on 20 December 2019 (Edition 1). As of 2 March 2026 it remains a published part of the ISO/IEC 23001 series and has not been indicated as superseded; ISO standards are subject to periodic review (typically every five years) so implementers should check with their national body or ISO for any later amendments or revisions when precision is required.

Q: Is it part of a series?

A: Yes — it is Part 15 of ISO/IEC 23001 (MPEG systems technologies). It is also closely related to the ISOBMFF family (ISO/IEC 14496-12) and other MPEG/ISO packaging standards such as CMAF (ISO/IEC 23000-19) and parts of ISO/IEC 14496 that address timed text and related overlays.

Q: What are the key keywords?

A: ISOBMFF, web resources, HTML packaging, MIME box, file brands, synchronization, streaming packaging, MPEG systems, ISO/IEC 14496-12, CMAF.