HWND g_hWnd = NULL;
void analyzeFrame(const VideoFrameRef& frame)
{
    RGB888Pixel* pColor;
    HDC hdc = GetDC(g_hWnd);
    int h = frame.getHeight();
    int w = frame.getWidth();

    switch (frame.getVideoMode().getPixelFormat())
    {
    case PIXEL_FORMAT_RGB888:
        pColor = (RGB888Pixel*)frame.getData();  // 获取保存图像像素的数组
        for (int i = 0; i < h; i++)              // 按照图像的高宽遍历像素
        {
            for (int j = 0; j < w; j++)
            {
                COLORREF& d = (COLORREF&)pColor[i * w + j];  // 强制引用 3个字节  4个字节 
                SetPixel(hdc, j, i, d & 0x00ffffff);         // 输出像素
            }
        }
        ReleaseDC(g_hWnd, hdc);
        break;
    default:
        printf("Unknown format\n");
    }
}