[vlc-devel] How does VLC synchronize between two ES stream?

[xiang zou]

Recently,I'm studing something about synchronize between video and audio stream in VLC. Through reading the source code, I found that every time when demux was finished, a function call "es_out_Control(p_demux,ES_OUT_SET_PCR,...)" will be invoked. Having read inner contents of es_out_Control, I feel its work is set the PCR which could mean "Program Clock Reference " (don't know whether it's right). Then,it might be a system wide refence clock, didn't it? 

  Here comes the problem: In the next step ,that is decoder module, I haven't found anything about this "pcr",why? how did synchronize work in this part?  
       
---------------------------------
 雅虎免费邮箱3.5G容量，20M附件！
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mailman.videolan.org/pipermail/vlc-devel/attachments/20070718/1537e5f0/attachment.html>
-------------- next part --------------
_______________________________________________
vlc-devel mailing list
vlc-devel at videolan.org
http://mailman.videolan.org/listinfo/vlc-devel