public byte[] GetFaceData(AFD_FSDK_FACERES faceRes, IntPtr offInputPtr)
{
AFR_FSDK_FaceInput faceinput = new AFR_FSDK_FaceInput();
faceinput.lOrient = (int)Marshal.PtrToStructure(faceRes.lfaceOrient, typeof(int));
MRECT rect = (MRECT)Marshal.PtrToStructure(faceRes.rcFace, typeof(MRECT));
faceinput.rcFace = rect;
IntPtr faceInputPtr = Marshal.AllocHGlobal(Marshal.SizeOf(faceinput));
Marshal.StructureToPtr(faceinput, faceInputPtr, false);
AFR_FSDK_FaceModel faceModel = new AFR_FSDK_FaceModel();
IntPtr faceModelPtr = Marshal.AllocHGlobal(Marshal.SizeOf(faceModel));
int ret = FaceAPI.AFR_FSDK_ExtractFRFeature
(detectEngine, offInputPtr,
faceInputPtr, faceModelPtr);
if (ret != 0) //返回值为0代表获取成功
{
Log.AddLog("获取不到人脸信息。");
return(null);
}
faceModel = (AFR_FSDK_FaceModel)Marshal.PtrToStructure(faceModelPtr, typeof(AFR_FSDK_FaceModel));
byte[] byteData = new byte[faceModel.lFeatureSize];
Marshal.Copy(faceModel.pbFeature, byteData, 0, faceModel.lFeatureSize);
Marshal.FreeHGlobal(faceModelPtr);
Marshal.FreeHGlobal(faceInputPtr);
return(byteData);
}
//检查是否存在人脸，imageDataPtr必须在offInputPtr用完后释放掉
public bool CheckFace(Bitmap bitmap, out AFD_FSDK_FACERES faceRes, out IntPtr offInputPtr, out IntPtr imageDataPtr)
{
byte[] imageData = BitmapToBmp(bitmap, out int width, out int height, out int pitch);
imageDataPtr = Marshal.AllocHGlobal(imageData.Length);
Marshal.Copy(imageData, 0, imageDataPtr, imageData.Length);
ASVLOFFSCREEN offInput = new ASVLOFFSCREEN();
offInput.u32PixelArrayFormat = 513;
offInput.ppu8Plane = new IntPtr[4];
offInput.ppu8Plane[0] = imageDataPtr;
offInput.i32Width = width;
offInput.i32Height = height;
offInput.pi32Pitch = new int[4];
offInput.pi32Pitch[0] = pitch;
offInputPtr = Marshal.AllocHGlobal(Marshal.SizeOf(offInput));
Marshal.StructureToPtr(offInput, offInputPtr, false);
faceRes = new AFD_FSDK_FACERES();
IntPtr faceResPtr = Marshal.AllocHGlobal(Marshal.SizeOf(faceRes));
int detectResult = FaceAPI.AFD_FSDK_StillImageFaceDetection(detectEngine, offInputPtr, ref faceResPtr);
faceRes = (AFD_FSDK_FACERES)Marshal.PtrToStructure(faceResPtr, typeof(AFD_FSDK_FACERES));
MRECT rect = (MRECT)Marshal.PtrToStructure(faceRes.rcFace, typeof(MRECT));
bool ret = faceRes.nFace > 0;
imageData = null;
//Marshal.FreeHGlobal(imageDataPtr); //这个指针内存泄漏了
//Marshal.FreeHGlobal(faceResPtr);
//GC.Collect();
return(ret);
}
public byte[] GetFaceData(AFD_FSDK_FACERES faceRes, IntPtr offInputPtr)
{
byte[] byteData = faceFR.GetFaceData(faceRes, offInputPtr);
return(byteData);
}
