本标准规定了由ISO/IEC 13818-1 stream_id值标识的视频和音频MPEG ES的映射，以及从更高级别的MPEG多路复用中提取的数据流传输到SMPTE ST 379-2中描述的MXF通用容器中。这包括但不限于ISO/IEC 13818-2 MPEG视频流、ISO/IEC 11172-2 MPEG视频流、ISO/IEC 14496-2 MPEG视频流、ISO/IEC 14496-10视频流、ISO/IEC 13818-3 MPEG音频流、ISO/IEC 11172-3 MPEG音频流和ISO/IEC 14496-3 MPEG音频流。它不包括ISO/IEC 14496-15视频流。本文档概述了单流映射和同步多流映射，以及同步MPEG Essential流的MXF封装的同步要求。本标准定义了用于唯一标识特定MPEG实现的SMPTE通用标签。MPEG流的Essential元素键和Essential容器标签，以及使用索引表对MPEG内容进行CBE和VBE索引的详细信息。 为了在任何给定的操作模式中实现互操作性，可能会对该本质容器的实现方式进行限制。建议读者在实施之前仔细研究适当的操作模式文档。

This standard specifies the mapping of video and audio MPEG ES, as identified by an ISO/IEC 13818-1 stream_id value, as well as the carriage of data streams extracted from higher level MPEG multiplexes, into the MXF Generic Container described in SMPTE ST 379-2. This includes, but is not limited to, ISO/IEC 13818-2 MPEG video stream, ISO/IEC 11172-2 MPEG video streams, ISO/IEC 14496-2 MPEG visual streams, ISO/IEC 14496-10 video streams, ISO/IEC 13818-3 MPEG audio streams, ISO/IEC 11172-3 MPEG audio streams, and ISO/IEC 14496-3 MPEG audio streams. It does not include ISO/IEC 14496-15 video streams. The document outlines single stream mapping and synchronized multi-stream mapping along with synchronization requirements for the MXF encapsulation of co-timed MPEG Essence streams. This standard defines SMPTE universal labels to be used to uniquely identify specific MPEG implementations. The Essence Element Keys and an Essence Container Label for MPEG streams are detailed along with CBE and VBE indexing of MPEG content using Index Tables. In order to achieve interoperability within any given Operational Pattern, restrictions may be placed on the way in which this Essence Container can be implemented. The reader is advised to carefully study the appropriate Operational Pattern document before implementation.