本文档提供了有关视频编码的编码效率测量实践的一般信息。本文件不提供评估视频质量的建议；它描述了最近在开发视频编码标准的工作中进行的编码效率实验所遵循的实践。购买本文件时可获得的所有当前修订均包含在购买本文件中。

This document provides general information about coding efficiency measurement practices for video coding. This document does not provide recommendations for evaluating video quality; it describes the practices that have recently been followed for coding efficiency experiments conducted during work to develop video coding standards.All current amendments available at time of purchase are included with the purchase of this document.