<DIV>Hi Ross,<BR>In your last letter, you gave me some advice and I followed that.In </DIV>
<DIV>liveMedia/FileSink.cpp, in the function "FileSink::addData()" I could </DIV>
<DIV>get the presentationTime of the latest frame/packet. But when I </DIV>
<DIV>printed out the "presentationTime", I found that it had the following </DIV>
<DIV>form:<BR> latest_NPT.tv_sec = 1156840357 </DIV>
<DIV>,presentationTime.tv_sec=1156840357<BR>I don't what does this mean---the number is so big!</DIV>
<DIV>And furthermore, when I want to use the </DIV>
<DIV>"playMediaSession(MediaSession &session, start, end,scale) " </DIV>
<DIV>function,<BR> I know there's something more to be done. The playMediaSession() </DIV>
<DIV>function requires a "start" parameter of "float type"(am I right?) and </DIV>
<DIV>the parameter should be in the range of the media file such as </DIV>
<DIV>"0-7.845000",which is the range of the media file mpg1video.mpg. <BR>So, my question is: how to transform the presentationTime to NPT of </DIV>
<DIV>the media? Or what is the relationship between thepresentationTime </DIV>
<DIV>and the NPT?</DIV>
<DIV>Maybe I missed something.<BR>Any opinion is appreciated.<BR>Thank you.</DIV>
<DIV> </DIV>
<DIV> </DIV>
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