hi ,<br /><br />during play state of pipeline can i know whether audioclock or systemclock is used by pipeline ?<br /><br />any api ?<br /><br /><br /><br /><p><hr><font size=2 face=geneva><b>Join Excite! - <a href=http://www.excite.com target=_blank>http://www.excite.com</a></b><br>The most personalized portal on the Web!</font>