public long DetectFaces(int width, int height, IntPtr imgData, out List <FaceInfo> fis)
{
AS_MultiFaceInfo asInfo = new AS_MultiFaceInfo();
var ret = DetectFaces(_engine, width, height, 513, imgData, ref asInfo,
AS_DetectModel.DETECT_MODEL_RGB);
fis = new List <FaceInfo>();
var faceRectSize = Marshal.SizeOf(typeof(AS_FaceRect));
var faceOrientSize = Marshal.SizeOf(typeof(int));
var faceIdSize = Marshal.SizeOf(typeof(int));
for (int i = 0; i < asInfo.FaceNumber; i++)
{
IntPtr faceRectPtr = asInfo.FaceRect + i * faceRectSize;
IntPtr faceOrientPtr = asInfo.FaceOrient + i * faceOrientSize;
AS_FaceRect faceRect = Marshal.PtrToStructure <AS_FaceRect>(faceRectPtr);
int faceOrient = Marshal.PtrToStructure <int>(faceOrientPtr);
int faceId = -1;
if (asInfo.FaceID != IntPtr.Zero)
{
IntPtr faceIdPtr = asInfo.FaceID + i * faceIdSize;
faceId = Marshal.PtrToStructure <int>(faceIdPtr);
}
fis.Add(new FaceInfo()
{
Top = faceRect.Top,
Left = faceRect.Left,
Right = faceRect.Right,
Bottom = faceRect.Bottom,
Orient = faceOrient,
Id = faceId
});
}
return(ret);
}
internal static extern long DetectFaces(IntPtr engine, int width, int height, int format,
IntPtr imgData, ref AS_MultiFaceInfo asMultiFaceInfos, AS_DetectModel asDetectModel);