ISO/IEC 14496-4:2004/Amd 9:2006/Cor 2:2012

Overview

ISO/IEC 14496-4:2004/Amd 9:2006/Cor 2:2012 is an international standard published by ISO and IEC, focusing on information technology for the coding of audio-visual objects. Specifically, it addresses Part 4: Conformance testing with a focus on AVC fidelity range extensions. This technical corrigendum (Corrigendum 2) issued in 2012 updates Amendment 9 from 2006 by correcting and replacing specific test bitstreams, refining guidelines for conformance testing related to AVC (Advanced Video Coding) fidelity range extensions.

This standard ensures interoperability and compliance in technologies handling 4:2:2 chroma format video coding for high fidelity audiovisual objects, critical for high-definition video applications, broadcast, and professional video systems.

Key Topics

• AVC Fidelity Range Extensions
  The document updates conformance tests related to AVC profiles with fidelity range extensions, including support for increased chroma formats and bit depths beyond standard profiles.

• Conformance Testing Procedures
  It specifies updated test bitstreams to validate decoder compliance, such as:

  • Decoding B slices for 4:2:2 8-bit video without deblocking filter.
  • Decoding B slices for 4:2:2 10-bit video without deblocking filter.

• Technical Updates
  Replacement of older bitstreams “Hi422FREXT3_Sony_A” and “Hi422FREXT8_Sony_A” with new validated bitstreams for improved accuracy in testing.

• Key Parameter Details

  • Slices coded as I, P, or B with one slice per picture.
  • Use of CAVLC entropy coding process.
  • Disabling the deblocking filter (disable_deblocking_filter_idc = 1).
  • Spatial direct prediction and direct 8x8 inference enabled.
  • Chroma format set to 4:2:2 with bit depth variations (8-bit & 10-bit).

Applications

• Decoder Validation and Certification
  Manufacturers and developers of AVC video decoders utilize this standard to verify their products accurately decode high-fidelity 4:2:2 content, ensuring compliance with international interoperability requirements.

• Broadcast and Professional Video Production
  Ensures equipment supports AVC fidelity range extensions necessary for professional-grade video workflows, where 10-bit and 4:2:2 color subsampling are common.

• Quality Assurance in Media Distribution
  Content distributors and streaming platforms leverage this standard to certify that streamed or broadcast content maintains video integrity across different devices and platforms.

• Standardization Support for Video Compression Technologies
  Helps maintain consistency in advanced video coding implementations supporting extended color fidelity, crucial for emerging high dynamic range (HDR) applications and high-resolution video services.

Related Standards

• ISO/IEC 14496-10 (ITU-T H.264)
  Defines the video coding standard that this conformance testing supports, specifically Annex B byte stream format and AVC video coding tools.

• ISO/IEC JTC 1/SC 29
  The joint technical committee and subcommittee responsible for multimedia coding standards, including AVC and related conformance testing.

• Other AVC Fidelity Range Extensions Documents
  Additional amendments and corrigenda that refine AVC profiles supporting 4:2:2 chroma format and higher bit depths, enhancing current video compression standards.

By implementing ISO/IEC 14496-4:2004/Amd 9:2006/Cor 2:2012, industry professionals can ensure video decoders meet strict conformance criteria for advanced AVC fidelity range extensions, maintaining high-quality audiovisual experiences across diverse applications.