ISO/IEC 14496-10:2022

Overview

ISO/IEC 14496-10:2022 - Advanced Video Coding (AVC) - specifies a widely used standard for coding of audio‑visual objects. Published as the tenth edition (2022) of Part 10 of the ISO/IEC 14496 series, this document captures the syntax, semantics, decoding and parsing processes required to implement interoperable AVC/H.264 systems. It is the formal joint standard with ITU‑T H.264 and includes updates such as new supplemental enhancement information (SEI) messages (annotated regions and shutter interval).

Keywords: ISO/IEC 14496-10:2022, Advanced Video Coding, AVC, H.264, video compression standard, MPEG-4 Part 10.

Key Topics

• Bitstream and NAL unit formats: definitions for Network Abstraction Layer (NAL) units and raw byte sequence payloads for interoperable transport and storage.
• Syntax and semantics: tabular specifications for slice headers, slice data, macroblock layers and associated semantic rules.
• Decoding processes: detailed procedures for NAL unit and slice decoding, picture order count, reference picture management, and picture construction.
• Prediction methods: comprehensive intra and inter prediction processes (including 4x4, 8x8, 16x16 luma modes and chroma prediction).
• Transform and quantization: transform coefficient decoding, inverse scanning, scaling and reconstruction processes for 4x4 and 8x8 blocks and Intra_16x16.
• Entropy coding: parsing and decoding for both CAVLC and CABAC entropy coding methods.
• Deblocking filter: loop filtering algorithms for reducing blocking artifacts in reconstructed pictures.
• Profiles, levels and annexes: normative Annex A (profiles and levels) and annexes for byte stream format, reference decoder, SEI, VUI, Scalable Video Coding (SVC), Multiview Video Coding (MVC), and multiview/depth extensions.

Keywords: NAL unit, macroblock, CAVLC, CABAC, deblocking, profiles and levels, SVC, MVC, SEI, VUI.

Applications

ISO/IEC 14496-10:2022 is essential for:

• Codec and decoder implementers (software and hardware acceleration)
• Streaming platforms and OTT services ensuring interoperable delivery
• Broadcast and IPTV systems using standardized compression and transport
• Video conferencing, surveillance, and telepresence products
• Multimedia application developers, transcoders and content preparation tools
• Conformance testing laboratories and interoperability test suites

Implementers use the standard to ensure bitstream compatibility, optimize coding efficiency, and meet profile/level constraints for target devices.

Related standards

• ITU‑T H.264 (joint specification with ISO/IEC 14496-10)
• Other parts of the ISO/IEC 14496 (MPEG-4) series for container formats, systems and audio/video object definitions

For implementation or procurement, consult the full ISO/IEC 14496-10:2022 text and national standards bodies for licensing or patent declarations.