Time stamp issue on multiple monitors

[vishu]

I have an application which gets the media data from server with
presentation timestamps set and I have source filter which passes the
data to downstream filter. Playback is fine in single monitor.
When I move the video window to secondary monitor, playback stops for
certain amount of time.

When I analyzed the issue, I found that, Renderer filter releases the
overlay of primary and then acquires the secondary monitor overlay
surface. During this time, graph manager calls stop and run on all the
filters.
Now stream time is reset with new reference time but timestamps of
incoming pockets are not altered.

I need to update/alter the time stamps of incoming pockets with
respect to new stream time.
If anyone has worked on calculating the time stamps please help me in
resolving this issue.

What is the relation between Media time and time stamp? Is it possible
to calculate the time stamp using media time. Please help me.

--
Vishu