ISO Base Media File Format (ISOBMFF) is a standard format for multimedia content that is used for digital multimedia containers, such as MP4, 3GP, and Motion JPEG 2000. It is defined by ISO/IEC 14496-12, which is part of the ISO/IEC 14496 standard, also known as the MPEG-4 Part 12 standard.
The ISOBMFF specification defines a file format that can be used to store a variety of media data, including video, audio, images, text, and other types of data. The format provides support for interleaving different media types and allows for synchronized playback of multiple media streams. The ISOBMFF format is widely used for delivering multimedia content over the internet and for storing multimedia content on consumer devices, such as smartphones and tablets.
ISO/IEC 14496-12: Information technology — Coding of audio-visual objects — Part 12: ISO base media file format: This is the official specification of the ISOBMFF, which can be found on the International Organization for Standardization (ISO) website.
Wikipedia page on ISO Base Media File Format: This page provides a general overview of the ISOBMFF, including its history, features, and uses.
MPEG-4 Part 12: ISO Base Media File Format Explained: This article provides a comprehensive overview of the ISOBMFF and how it works.
ISO Base Media File Format (ISOBMFF) | MP4Dev: This website provides a wealth of information about the ISOBMFF, including technical details, best practices, and tools for working with the format.