本文档定义了派生视觉轨迹的存储格式和相关转换操作的初始基本集。本文档中定义的格式允许交换、编辑和显示定时图像序列，这些图像序列是应用于在同一演示文稿中输入静态图像或定时图像序列样本的转换操作产生的。 该格式定义了用于包含转换操作描述的规范结构，以及如何将转换操作链接到输入，并定义了如何处理这些转换操作以获得视频帧的定时序列。

This document defines a storage format for derived visual tracks and an initial base set of related transformation operations. The format defined in this document enables the interchange, editing, and display of timed sequences of images that result from transformation operations applied to input still images or samples of timed sequences of images in the same presentation. This format defines normative structures used to contain the description of transformation operations, how to link that transformation operations to the inputs, and defines how to process those transformation operations to obtain a timed sequence of video frames.