STANDARD. ISO/IEC. Second edition. AMENDMENT Information technology — Coding of audio-visual objects —. Part 4. ISO/IEC /AMD Standard | Amendment 45 – Information technology – Coding of audio-visual objects – Part 4: Conformance. ISO/IEC /AMD Standard | Amendment 43 – Information technology – Coding of audio-visual objects – Part 4: Conformance.
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The flexibility is obtained by including parameters in the bitstream that define the characteristics of coded bitstreams.
Examples are the audio sampling frequency, picture size, picture shape, picture rate, bitrate parameters, synchronisation timestamps, the association of bitstreams and synthetic objects within objects, the association of objects within scenes, the protection of bitstreams, objects and scenes.
These tests can be used for various purposes such as:.
The characteristics of a bitstream define the subset of the 144996-4 that is exploited in the bitstream. Examples are the applied values or range of the picture size and bitrate parameters.
Decoder characteristics define the properties and capabilities of the applied decoding process. An example of a property is the applied arithmetic accuracy. The capabilities of a decoder specify which coded bitstreams the decoder can decode and reconstruct, by defining the subset of the standard that may be exploited in decodable bitstreams.
A bitstream can be decoded by a decoder if the characteristics of the coded bitstream are within the subset of the standard specified by the decoder capabilities. Guidelines are given on constructing tests to verify bitstream and decoder conformance. This document gives guidelines on isi to construct bitstream test suites to check or verify decoder conformance.
In addition, some test bitstreams implemented according to those guidelines are provided as an electronic annex to this document. Conformance extensions for error resilient simple scalable profile.
N, Text of ISO/IEC /PDAM46 Conformance Testing for Internet Video Coding | MPEG
This document is a draft of a conformance test specification for the multi-resolution frame compatible stereoscopic video coding extension of the Advanced 144964- Coding standard. Skip to main content. These tests can be used for various 144496-4 such as: Conformance testing Bitstreams Visual new levels and tools Bitstreams Conformance extensions for error resilient simple scalable profile Bitstreams Advanced Video Coding conformance Bitstreams AFX conformance extensions Bitstreams AFX reference software extensions Software.