ISO IEC 14496-5-2001 amd10-2007 cor5-2011 PDF

Full title and description

ISO/IEC 14496-5:2001/AMD10:2007/COR5:2011 — Information technology — Coding of audio‑visual objects — Part 5: Reference software — Amendment 10: SSC, DST, ALS and SLS reference software — Technical Corrigendum 5. This publication is a technical corrigendum to the MPEG‑4 Part 5 reference software amendment that documents minor corrections to the reference‑software material associated with Amendment 10 (SSC, DST, ALS and SLS reference implementations).

Abstract

This corrigendum issues technical corrections to ISO/IEC 14496-5:2001/Amd 10:2007 (the MPEG‑4 Part 5 reference software amendment). It clarifies and corrects elements of the reference software material for the additional audio object types and reference implementations introduced by Amendment 10, helping ensure the normative behaviour of the reference decoders and reproducibility of test outputs.

General information

• Status: Published (Corrigendum to ISO/IEC 14496-5:2001/Amd 10:2007).
• Publication date: October 2011 (Corrigendum 5 published 2011-10, Edition 2).
• Publisher: ISO (in cooperation with IEC) — prepared under ISO/IEC JTC 1/SC 29 (MPEG working group).
• ICS / categories: 35.040.40 — Coding of audio, video, multimedia and hypermedia information.
• Edition / version: Edition 2 (corrigendum to Edition 2 of the Part 5 corpus as amended by AMD 10:2007).
• Number of pages: 1 (published corrigendum document length: 1 page).

These bibliographic and lifecycle details are taken from the ISO catalogue entry for ISO/IEC 14496-5:2001/Amd 10:2007/Cor 5:2011.

Scope

Part 5 of ISO/IEC 14496 (Reference software) provides normative reference decoders and informative encoder/utility programs that demonstrate and validate the coding tools defined in other MPEG‑4 parts. Amendment 10 added reference‑software material for a set of audio object types and reference implementations (notably SSC, DST, ALS and SLS). Corrigendum 5 issues technical corrections to the Amendment 10 reference software texts to fix errors or ambiguities so implementers and test suites produce consistent outputs.

Key topics and requirements

• Normative reference decoders: expected decoder behaviour and output for conformance testing and reproducibility.
• Reference implementations for audio object types introduced or clarified in AMD 10: SSC (sinusoidal/sinusoid‑based coding), DST (Direct Stream Transfer), ALS (Audio Lossless Coding) and SLS (Scalable Lossless Coding).
• Technical corrections to source code listings, algorithm descriptions or parameter definitions in the Amendment 10 reference software package to remove ambiguities.
• Requirements that conforming implementations produce the same decoder outputs when given the same conformance bitstreams and file formats (ensures reproducibility for testing and evaluation).

Typical use and users

Implementers of MPEG‑4 audio and multimedia codecs, reference‑software maintainers, conformance/test labs, researchers evaluating or extending MPEG‑4 audio object types (SSC, DST, ALS, SLS), digital preservation/archive engineers interested in lossless or scalable lossless audio, and tooling vendors creating encoders/decoders and test vectors. The corrigendum is primarily of interest to those using the Amendment 10 reference software or integrating its outputs into conformance suites.

Related standards

ISO/IEC 14496 (MPEG‑4) family — particularly Part 3 (audio tools and audio object types where DST, ALS and SLS are defined) and Part 5 (reference software). Related MPEG and ISO work on audio coding (including MPEG‑4 audio extensions and later MPEG‑D audio standards) provide context for the audio object types covered by this amendment. Corrigenda and amendments to Part 5 (other COR/AMD documents) are also directly related.

Keywords

MPEG‑4, ISO/IEC 14496‑5, reference software, corrigendum, Amendment 10, SSC, DST, ALS, SLS, audio lossless, scalable lossless, MPEG‑4 audio, conformance, reference decoder.

FAQ

Q: What is this standard?

A: It is Technical Corrigendum 5 (COR5:2011) to ISO/IEC 14496‑5:2001/Amd 10:2007 — a one‑page corrigendum that provides technical corrections to the Amendment 10 reference‑software material for MPEG‑4 Part 5.

Q: What does it cover?

A: It corrects errors and clarifies portions of the Amendment 10 reference software package, which added reference implementations for audio object types and tools (notably SSC, DST, ALS and SLS) to the MPEG‑4 Part 5 reference software set. The corrigendum helps ensure consistent decoder behaviour and reproducible test outputs.

Q: Who typically uses it?

A: Codec implementers, conformance test labs, reference‑software maintainers, researchers and archivists working with MPEG‑4 audio object types and those who rely on the Amendment 10 reference software for testing and validation.

Q: Is it current or superseded?

A: This item is a published corrigendum (Corrigendum 5, October 2011) that applies to the Amendment 10 material of ISO/IEC 14496‑5:2001. Users should check the ISO catalogue or the maintenance history of Part 5 for any subsequent corrigenda or newer amendments (other CORn or AMDn documents) that may further update the reference software.

Q: Is it part of a series?

A: Yes — it is part of the ISO/IEC 14496 (MPEG‑4) series, specifically Part 5 (Reference software). It is one of several corrigenda and amendments that update and extend the Part 5 reference software over time (for example multiple CORn items and AMDn amendments related to audio tool additions).

Q: What are the key keywords?

A: Reference software, corrigendum, SSC, DST, ALS, SLS, MPEG‑4, ISO/IEC 14496‑5, conformance, reference decoder, audio lossless.