//图像差分
 s32Ret = HI_MPI_IVE_Sub(&IveHandle, &pstGmm->stSrc,
&pstGmm->stbgImg, &pstGmm->stBgDiffFg, &pstGmm->stSubCtrl,
bInstant);
 if (HI_SUCCESS != s32Ret)
    {
           
SAMPLE_PRT("HI_MPI_IVE_Sub fail,Error(%#x)\n", s32Ret);
            return
s32Ret;
    }

 //差分图像二值化
 s32Ret = HI_MPI_IVE_Thresh(&IveHandle,
&pstGmm->stBgDiffFg, &pstGmm->stBinaryImg,
&pstGmm->stThrCtrl,  bInstant);
 if (HI_SUCCESS != s32Ret)
   
{
            SAMPLE_PRT("HI_MPI_IVE_Thresh fail,Error(%#x)\n",
s32Ret);
            return s32Ret;
    }

 //腐蚀操作
 s32Ret = HI_MPI_IVE_Erode(&IveHandle,
&pstGmm->stBinaryImg, &pstGmm->stErodeImg,
&pstGmm->stErodeCtrl, bInstant);
    if (HI_SUCCESS != s32Ret)
   
{
        SAMPLE_PRT("HI_MPI_IVE_Erode fail,Error(%#x)\n",
s32Ret);
        return s32Ret;
    }

 

 //对二值化图积分
 s32Ret = HI_MPI_IVE_Integ(&IveHandle, 
&pstGmm->stErodeImg, &pstGmm->stDiffInteg,
&pstGmm->stIntegCtrl, bInstant);
    if (HI_SUCCESS != s32Ret)
   
{
            SAMPLE_PRT("HI_MPI_IVE_Integ fail,Error(%#x)\n",
s32Ret);
            return s32Ret;
    }
 pu64VirDataDiff =
(HI_U32*)pstGmm->stDiffInteg.pu8VirAddr[0];

 //计算识别区域内目标的像素点

 //x1-y1
 HI_U32 index =
(g_recogArea.y+g_recogArea.height-1)*pstGmm->stInteg.u16Stride[0]+g_recogArea.x+g_recogArea.width-1;
 HI_U32
sum_x1_y1 = (HI_U32) pu64VirDataDiff[index];

 //HI_U32 sum_x1_y1 = (HI_U32)
pu64VirDataDiff[pstGmm->stInteg.u16Height*pstGmm->stInteg.u16Stride[0]-1];

 //x0-y0
 index =
g_recogArea.y*pstGmm->stInteg.u16Stride[0]+g_recogArea.x;
 HI_U32
sum_x0_y0 = (HI_U32) pu64VirDataDiff[index];      //    (HI_U32)
pu64VirDataDiff[0];

  //x0-y1

 index =
(g_recogArea.y+g_recogArea.height-1)*pstGmm->stInteg.u16Stride[0]+g_recogArea.x;
 HI_U32
sum_x0_y1 = (HI_U32) pu64VirDataDiff[index];

 
 //x1-y0

 index
=g_recogArea.y*pstGmm->stInteg.u16Stride[0]+g_recogArea.x+g_recogArea.width-1;
 HI_U32
sum_x1_y0 = (HI_U32) pu64VirDataDiff[index];

 HI_U32  motionArea = sum_x1_y1 + sum_x0_y0 - sum_x0_y1 -
sum_x1_y0;

 //printf("----------sum_x1_y1=%u---sum_x0_y0=%u----motionArea is %d
----number=%d\n",sum_x1_y1, sum_x0_y0, motionArea, sum_x1_y1);

 //有运动目标
 if(motionArea>300)
 {

  pstGmm->objectFlag =
3;
 }else
 {
  if(pstGmm->objectFlag>0)
  {
   pstGmm->objectFlag--;
  }
  
 }

 

以上为实现的代码。

遇到一个问题，在海思hi3516上开发，malloc的内存进行操作比mmz分配的内存快，这个怎么解决？