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(fā)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(tǒng)層規(guī)范,著重介紹節(jié)目特殊信息psi和節(jié)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(tǒng)層進行簡單介紹,然后具體說明本課題系統(tǒng)層復用解復用過程的實現(xiàn)方法,包括比較關(guān)鍵的對節(jié)目特定信息的處理以及對系統(tǒng)時鐘的處理方法等。