void BitRateEstimation(IltmmCapture *pCapture) { long PossibleBitRate, ActualBitRate; // get the estimate bit rate before capturing starts (theoretical) pCapture->EstimateOutputBitRate(&PossibleBitRate); // start the capture pCapture->StartCapture(ltmmCapture_Mode_VideoAndAudio); // After starting capture, get the estimate output bit rate (estimate from actually written bytes) pCapture->EstimateOutputBitRate(&ActualBitRate); // do something with the returned values. }