private void ProcessFrames()
{
WaitHandle[] exitOrRetry = new WaitHandle[] { _stopEvent, _gotNewFrameEvent };
while (!_stopEvent.WaitOne(0))
{
if (_gotNewFrameEvent.WaitOne(0))
{
_readyEvent.Reset();
_gotNewFrameEvent.Reset();
BboxContainer container = new BboxContainer();
int CV_8UC3 = 16; // OpenCV constant
int count = DetectImageGpu(_frame.Rows, _frame.Cols, CV_8UC3, _frame.DataPointer, ref container);
_statFrameCounter++;
if (_statFrameCounter > 24)
{
DateTime now = DateTime.Now;
double fps = _statFrameCounter / now.Subtract(_statPrevCall).TotalSeconds;
Debug.WriteLine($"FPS: {fps:F1} skipped: {100.0 * _statFrameCounter / _statFramesTotal:F0}%");
_statFrameCounter = 0;
_statFramesTotal = 0;
_statPrevCall = now;
}
ObjectsOut?.Invoke(this, container.candidates.Where(b => (b.w > 0) && (b.h > 0)).Select(bt => new BboxItem(bt)));
_readyEvent.Set();
}
else
{
WaitHandle.WaitAny(exitOrRetry, 100);
}
}
}
internal static extern int DetectImageGpu(int rows, int cols, int type, IntPtr data, ref BboxContainer container);
