5/11/2009


it gets video Lag when use " You Cam" AP 

Solution: 

According to the analysis of YouCam accessing the camera, It will open and close camera 
for several times. This will lead to the invalid timestamp which is generated by OS once in a while. 
The timestamp is used to place in the PresentationTime field of KSSTREAM_HEADER for video frame. 
While getting the invalid timestamp it is necessary to let OS to do with the PresentationTime field by itself.
