播出系统中的传输流校正算法  

Transmission Flow Correction Algorithm in Broadcasting System

作　　者：汤晓冰 顾炜 杨明磊 

机构地区：[1]上海文广科技集团有限公司

出　　处：《广播与电视技术》2011年第1期43-45,15,共3页Radio & TV Broadcast Engineering

摘　　要：本文研究了MPEG-2传输流校正算法,通过修改输入流中的PCR/PTS/DTS、包标识PID、节目特殊信息(PSI)表、连续计数器字段,使输出流符合标准并能正常播放。该算法已经成功地应用于上海IPTV播出系统中。Transmission flow correction is one of the key technologies in hard disk broadcasting system.When broadcasting different programs in sequence,the broadcast system must correct and multiplex MPEG-2 transmission flow into a stream,which will be output,in order to ensure the stream received by digital television receiver or STB can be correctly decoded.In this paper,MPEG-2 transmission flow correction algorithm and its application about IPTV broadcast system in Shanghai were studied.

关 键 词：MPEG-2传输流 流拼接 PCR校正 播出系统 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]