可以从数字电视系统的TS(Transport Stream)流文件中找出到指定包(由用户设置PID、TableID等参数)数量及在流中的位置，对开发数字电视用户很有用-from digital TV system TS (Transport Stream) flow document to identify specific packages (PID set by the user, TableID parameters) volume and flow in the location of the development of digital TV subscribers useful