ISO/IEC 13818-4:2004 信息技术 图像及相关音频信息的通用编码 第4部分：一致性测试

标准编号：ISO/IEC 13818-4:2004

中文名称：信息技术 图像及相关音频信息的通用编码 第4部分：一致性测试

英文名称：Information technology — Generic coding of moving pictures and associated audio information — Part 4: Conformance testing

发布日期：2004-12

标准范围

ISO/IEC 13818-4:20 04规定了如何设计测试来验证编码数据和解码器是否满足ISO/IEC 13818第1、2、3和7部分规定的要求。针对ISO/IEC 13818的第1、2、3和7部分定义了编码数据和解码器的特性。解码器的能力通过定义可在编码数据中利用的标准子集来指定解码器可解码和重构哪些编码数据。如果编码数据的特性在解码器能力指定的标准子集内，则可以由解码器解码编码数据。描述了测试编码数据和解码器是否符合ISO/IEC 13818第1、2、3和7部分中定义的要求的程序。给定要求保护的一组特性，必须满足的要求完全由ISO/IEC 13818的第1、2、3和7部分确定。ISO/IEC 13818-4:20 04总结了这些要求，将它们与特性进行交叉引用，并定义了如何测试它们的一致性。根据这些指南实施的一组一致性测试序列作为ISO/IEC 13818-4:20 04的电子附件提供。

ISO/IEC 13818-4:2004 specifies how tests can be designed to verify whether coded data and decoders meet requirements specified in parts 1, 2, 3 and 7 of ISO/IEC 13818.

Characteristics of coded data and decoders are defined for parts 1, 2, 3 and 7 of ISO/IEC 13818. The capabilities of a decoder specify which coded data the decoder can decode and reconstruct, by defining the subset of the standard that may be exploited in the coded data. Coded data can be decoded by a decoder if the characteristics of the coded data are within the subset of the standard specified by the decoder capabilities.

Procedures are described for testing conformance of coded data and decoders to the requirements defined in parts 1, 2, 3 and 7 of ISO/IEC 13818. Given the set of characteristics claimed, the requirements that must be met are fully determined by parts 1, 2, 3 and 7 of ISO/IEC 13818. ISO/IEC 13818-4:2004 summarizes the requirements, cross references them to characteristics, and defines how conformance with them can be tested.

A set of conformance test sequences implemented according to those guidelines are provided as an electronic annex to ISO/IEC 13818-4:2004.

标准预览图