private unsafe Target[] SearchFaces()
{
IntPtr retTarget = IntPtr.Zero;
int count = NativeIconExtractor.SearchFaces(ref retTarget);
if (count <= 0)
{
return(new Target[0]);
}
Target *pTarget = (Target *)retTarget;
IList <Target> targets = new List <Target>();
for (int i = 0; i < count; i++)
{
Target face = pTarget[i];
targets.Add(face);
}
Target[] tgArr = new Target[targets.Count];
targets.CopyTo(tgArr, 0);
return(tgArr);
}
unsafe void SearchFace()
{
while (true)
{
Frame[] frames = null;
lock (locker)
{
if (framesQueue.Count > 0)
{
frames = framesQueue.Dequeue();
}
}
if (frames != null)
{
for (int i = 0; i < frames.Length; ++i)
{
DateTime dt = DateTime.FromBinary(frames[i].timeStamp);
NativeIconExtractor.AddInFrame(frames[i]);
}
IntPtr target = IntPtr.Zero;
int count = NativeIconExtractor.SearchFaces(ref target);
if (count > 0)
{
Target *pTarget = (Target *)target;
IList <Target> targets = new List <Target>();
int upLimit = count;
if (frames.Length > 1 && Properties.Settings.Default.DetectMotion &&
Properties.Settings.Default.removeDuplicatedFace)
{
upLimit = Math.Min(count, Properties.Settings.Default.MaxDupFaces);
}
for (int i = 0; i < upLimit; i++)
{
Target face = pTarget[i];
Frame frm = face.BaseFrame;
int idx = Array.FindIndex(frames, fm => fm.cameraID == frm.cameraID &&
fm.image == frm.image &&
fm.timeStamp == frm.timeStamp);
Debug.Assert(idx != -1);
targets.Add(face);
}
Target[] tgArr = new Target[targets.Count];
targets.CopyTo(tgArr, 0);
ImageDetail[] imgs = this.SaveImage(tgArr);
this.screen.ShowImages(imgs);
}
NativeIconExtractor.ReleaseMem();
Array.ForEach(frames, f => Cv.Release(ref f.image));
}
else
{
goSearch.WaitOne();
}
}
}
