在TS流中插入DVB服务信息表的实现

Implementation of inserting DVB Service Information tables into TS streams

详细分析和讨论了DVB各种服务信息表的定义与用途,并且在标准清晰度电视编码器中设计并实现了插入各种服务信息表的接口。通过这个接口可以根据各种业务应用的要求在TS流中插入不同的服务信息表,从而便于开展各种数字电视业务,如电子节目导航、视频点播等。整个系统经过标准仪器测试,符合DVB相应的规范。

The purpose of DVB Service Information(SI) tables is discussed in detail. The interface to insert DVB SI tables into TS streams is designed and implemented in SDTV encoder system. Various SI tables can be inserted into TS streams using this interface in different applications. Then, services such as EPG and VOD could be provided by the SDTV encoder system. System is measured by stadard test instrument and compliant with DVB.