Observation about Less than 1 Sec Video

What I was Done:
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1.I have Queried the GetCurrentPosition () fn from the Player Application;
TIME_FORMAT_MEDIA_TIME flag is set as same as our Filters;
30000 is the Maximum Duration means,if we set the 30001 will set the end of the file;



TrackType =0, Start : 0,Stop :990000
TrackType =0, Start : 990000,Stop :1990000
TrackType =0, Start : 1990000,Stop :3050000
TrackType =0, Start : 3050000,Stop :3990000
TrackType =0, Start : 3990000,Stop :4990000
TrackType =0, Start : 4990000,Stop :5980000
TrackType =0, Start : 5980000,Stop :6980000
Track Type:0 Track Duration is 798,Total Duration is:798
VideoTrack Reaches End: 8380000
TrackType =0, Start : 6980000,Stop :8380000
Stream Time is :7980000 Set it as Properly;
m_nCurrentPos :7980000 for the Last Media Sample we set the TimeStamp as 8380000;
It is more than the Timestamp;

I have used the Player Application there I get the total duration of the media file;
and moreover I printed the current Position using IMediaSeeking interface;
This is the Problem with multimedia file having less than 1 seconds of video and audio;
if I am adding the 200 milli seconds then it works fine;