本标准定义了MPEG视频基本流（ES）信息，以便于在定义的环境下进行无缝编辑。根据MPEG标准的定义，视频ES中还添加了用于专业演播室应用的附加信息。补充信息将在视频序列的序列头和用户数据区中携带。本标准定义了要携带的数据和数据的位置。

This standard defines the MPEG video elementary stream (ES) information to facilitate seamless edits under defined circumstances. The video ES, as defined by the MPEG standards, are supplemented with additional information for professional studio applications. Supplementary information will be carried within the sequence header and the user data area of the video ES. This standard defines the data to be carried and the location of the data.