ISO/IEC 23000-22:2025 信息技术.多媒体应用格式（MPEG-A）.第22部分:多图像应用格式（MIAF）

标准编号：ISO/IEC 23000-22:2025

中文名称：信息技术.多媒体应用格式（MPEG-A）.第22部分:多图像应用格式（MIAF）

英文名称：Information technology - Multimedia application format (MPEG-A) - Part 22: Multi-image application format (MIAF)

发布日期：2025-02-11

标准范围

本文档指定了多图像应用格式（MIAF），它包含编码图像、图像组和图像序列以及它们的元数据和关于它们彼此关系的信息，所有这些都嵌入在高效图像文件（HEIF）格式中。本文件以ISO/IEC 23008-12（HEIF）为基础，规定了以下内容:-ISO/IEC 23008-12(HEIF)上的一组附加约束，以简化其文件格式选项；-特定的α平面格式；-用于所支持的编码格式的一组特定简档和级别；-一组特定元数据格式；-一组品牌，包括指示符合特定简档的应用品牌；-用于扩展MIAF格式以支持附加编码格式、简档、级别和元数据的一组规则。本文档还定义了MIAF阅读器和MIAF渲染器的规范行为。本文档（MIAF）有意编写为可扩展的，并允许向前兼容性。该格式还允许存在其他数据，例如编码格式、元数据和衍生图像。

This document specifies the Multi-Image Application Format (MIAF), which contains coded images, groups and sequences of images along with their metadata and the information about their relations to each other, all embedded in the High Efficiency Image File (HEIF) format.

This document builds on ISO/IEC 23008-12 (HEIF) and specifies the following:

— a set of additional constraints on ISO/IEC 23008-12 (HEIF), to simplify its file format options;

— specific alpha plane formats;

— a set of specific profiles and levels for the supported coding formats;

— a set of specific metadata formats;

— a set of brands, including application brands indicating conformance with specific profiles;

— a set of rules for extending MIAF format to support additional coding formats, profiles, levels and metadata.

This document also defines the normative behaviour for a MIAF reader and MIAF renderer.

This document (MIAF) is intentionally written to be extensible, and to allow for forward compatibility. The format is also permissive of the presence of other data, such as coding formats, metadata, and derived images.

标准预览图