内存问题 触发断点

[lwhlx]

程序运行一段时间后会触发一个断点，不知道什么原因

[lwhlx]

代码：

int ProcessingFunc(UCHAR *pBayerBuffer, int nBayerWidth, int nBayerHeight, \ UCHAR *pFrameBuffer, int nFrameBufferPitch, int nFrameBufferHeight, \ void *pMiscellaneousArg) { UCHAR *pGrayscaleBuffer = new UCHAR[(nBayerWidth-2)*(nBayerHeight-2)]; Bayer2Rgb(pBayerBuffer, pFrameBuffer, pGrayscaleBuffer, nBayerWidth, nBayerHeight, 1);//给pGrayscaleBuffer赋值 UINT sum = GetGrayscaleSubtract(pGrayscaleBuffer, nBayerWidth, nBayerHeight); delete []pGrayscaleBuffer; return 0; } UINT GetGrayscaleSubtract(unsigned char *pGrayscale, int Width, int Height) { unsigned int sum = 0; int i, j; for (i=0; i<Height-3; i++) { for (j=0; j<Width-3; j++) { //屏蔽下面语句后不会触发断点 sum += (abs(pGrayscale[i*(Width-2)+j] - pGrayscale[(i+1)*(Width-2)+j+1]) + abs(pGrayscale[(i+1)*(Width-2)+j] - pGrayscale[i*(Width-2)+j+1])); } } return sum; }

[starytx]

确保nBayerWidth ,nBayerHeight都大于2吗？

[lwhlx]

int ProcessingFunc(UCHAR *pBayerBuffer, int nBayerWidth, int nBayerHeight, \
    UCHAR *pFrameBuffer, int nFrameBufferPitch, int nFrameBufferHeight, \
    void *pMiscellaneousArg)
{
    UCHAR *pGrayscaleBuffer = new UCHAR[(nBayerWidth-2)*(nBayerHeight-2)];

    Bayer2Rgb(pBayerBuffer, pFrameBuffer, pGrayscaleBuffer, nBayerWidth, nBayerHeight, 1);//给pGrayscaleBuffer赋值
    UINT sum = GetGrayscaleSubtract(pGrayscaleBuffer, nBayerWidth, nBayerHeight);

    delete []pGrayscaleBuffer;
    return 0;
}

UINT  GetGrayscaleSubtract(unsigned char *pGrayscale, int Width, int Height)
{
    unsigned int sum = 0;
    int i, j;
    for (i=0; i<Height-3; i++) {
        for (j=0; j<Width-3; j++) {
            //屏蔽下面语句后不会触发断点
            sum += (abs(pGrayscale[i*(Width-2)+j] - pGrayscale[(i+1)*(Width-2)+j+1]) +  abs(pGrayscale[(i+1)*(Width-2)+j] - pGrayscale[i*(Width-2)+j+1]));
        }
    }

    return sum;
}

[lwhlx]

引用 2 楼 starytx 的回复:

确保nBayerWidth ,nBayerHeight都大于2吗？

都肯定大于2，测试时是1920,1080

[lwhlx]

该函数是一直循环执行

int ProcessingFunc(UCHAR *pBayerBuffer, int nBayerWidth, int nBayerHeight, \
    UCHAR *pFrameBuffer, int nFrameBufferPitch, int nFrameBufferHeight, \
    void *pMiscellaneousArg)

[dahaiI0]

pGrayscale[(i+1)*(Width-2)+j+1]) + abs(pGrayscale[(i+1)*(Width-2)+j]写错了吧 pGrayscale[(i+1)*(Width-2)+j+1])] + abs(pGrayscale[(i+1)*(Width-2)+j]

[lwhlx]

引用 6 楼 dahaiI0 的回复:

pGrayscale[(i+1)*(Width-2)+j+1]) + abs(pGrayscale[(i+1)*(Width-2)+j]写错了吧 pGrayscale[(i+1)*(Width-2)+j+1])] + abs(pGrayscale[(i+1)*(Width-2)+j]

应该没错：

(  abs(pGrayscale[i*(Width-2)+j] - pGrayscale[(i+1)*(Width-2)+j+1]) 
+  abs(pGrayscale[(i+1)*(Width-2)+j] - pGrayscale[i*(Width-2)+j+1])  )