Dvb / mpeg - 2 transport stream multiplexer / demultiplex takes an important role in digital video broadcasting system . it can combine several transport streams from source encoder into a single transport stream to transport channel , or demultiplex trasnsport stream into one program sorce to source decoder . its performance has a great influence on the program transmission ability of hdtv system and the decoding quality of decoder in hdtv receiver . mpeg - 2 system multiplexer signalized video , audio , host data and so on to fixed length packet type for making transport stream Dvb mpeg - 2传送流复用解复用是数字电视广播系统中的重要组成部分之一，它将从信源编码器输出的多路节目源复用成一路传输流送入传输信道，或者从信道中包含多路节目源的一路传输流中解复用出一路节目送到解码器解码。
The transport stream detector which is used to analyze and detect ts can accomplish the functions of collecting information , analyzing and detecting the errors of ts , displaying of information , and etc . the dissertation discusses a way of hardware implement to detect ts which is a part of design of transport stream detecting based on sopc . it uses fpga to collect and analyze program special information ( psi ) and service information ( si ) , to find and store the pid numbers of every program and psi 、 si , and to detect errors of ts 本文详细介绍了利用硬件方式实现码流监测的设计方案,它作为整个课题? ?基于sopc的码流监测设计的硬件结构部分,实现了在fpga芯片内对码流信息的采集,包括节目专用信息( psi ) 、业务信息( si )的提取和分析,各套节目和psi 、 si表的pid值的查找和存储,以及对三层码流检错参数的监测。
