//IntPtr pd = IntPtr.Zero;
private void ProcessFrame(VideoFrame frame)
{
//if (pd == IntPtr.Zero)
//{
// pd = CV.PedestrianDetectorInit();
// CV.PedestrianDetectorSetEngineSettings(pd, 0.5, 5, true, Color.YellowGreen);
//}
//long time;
//CVPedestrians items = new CVPedestrians();
//int count = CV.PedestrianDetectorProcess(pd, frame, ref items, out time);
//Trace.WriteLine($"Count: {count}, time: {time}");
var image = frame.ToRAWImage();
var faces = faceDetector?.Process(image);
carCounter?.Process(image);
pedestrianDetector?.Process(image);
if (cbFDMosaic.Checked)
{
if (faces != null)
{
foreach (var face in faces)
{
var rect = face.Position;
rect.Top -= 10;
if (rect.Top < 0)
{
rect.Top = 0;
}
rect.Left -= 10;
if (rect.Left < 0)
{
rect.Left = 0;
}
rect.Bottom += 10;
if (rect.Bottom > image.Height)
{
rect.Bottom = image.Height;
}
rect.Right += 10;
if (rect.Right > image.Width)
{
rect.Right = image.Width;
}
MFP.EffectMosaicROI(frame.Data, image.Width, image.Height, 45, rect);
}
}
}
}
private void VideoCapture1_OnVideoFrameBuffer(object sender, VideoFrameBufferEventArgs e)
{
try
{
if (_tempBuffer == IntPtr.Zero)
{
_tempBuffer = Marshal.AllocCoTaskMem(e.Frame.Stride * e.Frame.Height);
}
// live
if (_searchLiveData == null)
{
_searchLiveData = new FingerprintLiveData((int)(_fragmentDuration / 1000), DateTime.Now);
_fragmentCount++;
}
if (e.StartTime < _fragmentDuration * _fragmentCount)
{
ImageHelper.CopyMemory(_tempBuffer, e.Frame.Data, e.Frame.DataSize);
// process frame to remove ignored areas
if (_ignoredAreas.Count > 0)
{
foreach (var area in _ignoredAreas)
{
if (area.Right > e.Frame.Width || area.Bottom > e.Frame.Height)
{
continue;
}
MFP.FillColor(_tempBuffer, e.Frame.Width, e.Frame.Height, area, 0);
}
}
VFPSearch.Process(_tempBuffer, e.Frame.Width, e.Frame.Height, e.Frame.Stride, e.StartTime, ref _searchLiveData.Data);
}
else
{
_fingerprintQueue.Enqueue(_searchLiveData);
_searchLiveData = null;
Dispatcher.BeginInvoke(new ProcessVideoDelegate(ProcessVideoDelegateMethod));
}
// overlap
if (e.StartTime < _fragmentDuration / 2)
{
return;
}
if (_searchLiveOverlapData == null)
{
_searchLiveOverlapData = new FingerprintLiveData((int)(_fragmentDuration / 1000), DateTime.Now);
_overlapFragmentCount++;
}
if (e.StartTime < _fragmentDuration * _overlapFragmentCount + _fragmentDuration / 2)
{
ImageHelper.CopyMemory(_tempBuffer, e.Frame.Data, e.Frame.DataSize);
VFPSearch.Process(_tempBuffer, e.Frame.Width, e.Frame.Height, e.Frame.Stride, e.StartTime, ref _searchLiveOverlapData.Data);
}
else
{
_fingerprintQueue.Enqueue(_searchLiveOverlapData);
_searchLiveOverlapData = null;
Dispatcher.BeginInvoke(new ProcessVideoDelegate(ProcessVideoDelegateMethod));
}
}
catch
{
}
}
private void VideoCapture1_OnVideoFrameBuffer(object sender, SampleGrabberBufferCBEventArgs e)
{
try
{
if (_stopFlag)
{
return;
}
Dispatcher.BeginInvoke(new NewFrameDelegate(NewFrameDelegateMethod), e);
if (_tempBuffer == IntPtr.Zero)
{
_tempBuffer = Marshal.AllocCoTaskMem(ImageHelper.GetStrideRGB24(e.Width) * e.Height);
}
// live
if (_searchLiveData == null)
{
_searchLiveData = new FingerprintLiveData(TimeSpan.FromMilliseconds(_fragmentDuration), DateTime.Now);
_fragmentCount++;
}
long timestamp = (long)(e.SampleTime * 1000);
if (timestamp < _fragmentDuration * _fragmentCount)
{
ImageHelper.CopyMemory(_tempBuffer, e.Buffer, e.BufferLen);
// process frame to remove ignored areas
if (_ignoredAreas.Count > 0)
{
foreach (var area in _ignoredAreas)
{
if (area.Right > e.Width || area.Bottom > e.Height)
{
continue;
}
MFP.FillColor(_tempBuffer, e.Width, e.Height, area, 0);
}
}
VFPSearch.Process(_tempBuffer, e.Width, e.Height, ImageHelper.GetStrideRGB24(e.Width), TimeSpan.FromMilliseconds(timestamp), ref _searchLiveData.Data);
}
else
{
_fingerprintQueue.Enqueue(_searchLiveData);
_searchLiveData = null;
Dispatcher.BeginInvoke(new ProcessVideoDelegate(ProcessVideoDelegateMethod));
}
// overlap
if (timestamp < _fragmentDuration / 2)
{
return;
}
if (_searchLiveOverlapData == null)
{
_searchLiveOverlapData = new FingerprintLiveData(TimeSpan.FromSeconds(_fragmentDuration), DateTime.Now);
_overlapFragmentCount++;
}
if (timestamp < _fragmentDuration * _overlapFragmentCount + _fragmentDuration / 2)
{
ImageHelper.CopyMemory(_tempBuffer, e.Buffer, e.BufferLen);
VFPSearch.Process(_tempBuffer, e.Width, e.Height, ImageHelper.GetStrideRGB24(e.Width), TimeSpan.FromMilliseconds(timestamp), ref _searchLiveOverlapData.Data);
}
else
{
_fingerprintQueue.Enqueue(_searchLiveOverlapData);
_searchLiveOverlapData = null;
Dispatcher.BeginInvoke(new ProcessVideoDelegate(ProcessVideoDelegateMethod));
}
}
catch
{
}
}
