问题如下：

请问在VPM642开发板的视频的采集与回放例程中如何得到单帧的YUV信息？例程中的代码如下：
   for(i=0;i<numLines;i++)
  {
        /*传送Y缓冲区*/
        DAT_copy((void *)(capYbuffer + i * numPixels),
                      (void *)(disYbuffer + i * numPixels),
                      numPixels);
          /*传送Cb缓冲区*/
         DAT_copy((void *)(capCbbuffer + i * (numPixels >> 1)),
                       (void *)(disCbbuffer + i * (numPixels >> 1)),
                       numPixels>>1);
        /*传送Cr缓冲区*/
            DAT_copy((void *)(capCrbuffer + i * (numPixels >> 1)),
                     (void *)(disCrbuffer + i * (numPixels >> 1)),
                     numPixels>>1);
         }

解答如下：

可以定义指针
uint8 *Y_buffer

赋值
Y_buffer = (void *)capYbuffer

处理
for(i=0;i<numLines;i++)
{
    for(j=0;j<numPixles;j++)
        {
              *(Y_buffer+i*numPixles+j) = 0x.....;
        }
}

Cb,Cr做类同处理！注意Y:U:V 是4：2：2，所以要减半！