【摘要】 提出一套 MPEG- 2传输流再复用器的设计方案 .该方案采用 CAM+ RAM组合代替简单的 RAM结构用于构造 PID信息表 ,在保证速度的基础上 ,大大节约了资源 ;提出了“两步法”PCR校正算法 ,在保证节目时钟基准 ( PCR)校正精度的基础上 ,大大减小了硬件设计的复杂度 ;基于该再复用器 ,提出了 MPEG- 2传输流、纯数据、主控机插入等几种实用的数据插入方式 ,以适应不同的应用环境更多还原

【Abstract】 Design and implementation of MPEG 2 transport stream (TS) remultiplexer was described. Simple RAM architecture is substituted by the combination of CAM (content addressable memory) and RAM for forming PID information table, by which the resource is saved and high speed performance is obtained. A “two step” algorithm of Program Clock Reference (PCR) correction was proposed, which reduces the complexity of hardware design obviously and limites the PCR jitter in a small range. Based on the remuliplexer, three ways of data insertion were given for the different applications.更多还原