In the same time , it is needed to revise pcr ( program clock reference ) in ts for the rate of ts is changed 同時傳輸流的碼率發生了改變,需要對傳輸流的pcr作相應的修改,以消除碼率改變造成接收端機頂盒的圖像抖動。
Chapter 2 describes the system part of mpeg - 2 standard with focuses on psi ( program specific information ) and pcr ( program clock reference ) 第二章主要講述了mpeg - 2標準系統層規范,著重介紹節目特殊信息psi和節目時鐘參考pcr 。
This thesis will give you a brief introduction on mpeg2 system layer , and then go on with the implementation of de - multiplex and multiplex in the transrating system , including processing specific program information and program clock reference 本文將對mpeg2系統層進行簡單介紹,然后具體說明本課題系統層復用解復用過程的實現方法,包括比較關鍵的對節目特定信息的處理以及對系統時鐘的處理方法等。