A/V synchronization algorithm

Hi everybody!
I've done some packets capture from a RTSP session.
Can anybody tell me how can I check manually the audio and video packets synchronization?
What I want is an algorithm that helps me check the synchorinzation.
Thanks.

Doesn't anybody knows how Audio and Video Synchronization is made on JMF?

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    "Customers don’t expect you to be perfect. They do expect you to fix things when they go wrong." ~ Donald Porter

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