id.cpp

来自「采集卡demo」· C++ 代码 · 共 22 行

#include "stdafx.h"

int  GetIdFromPacket(int frameType,	UCHAR *StreamBuf)
{
     if(frameType == PktIFrames){
         DWORD *serialNum = (DWORD *)StreamBuf;

         serialNum += 11;

         DWORD serialNo = *serialNum ^ 0x55aa55aa;

	 	 DWORD dispSerNo = ((serialNo &0xff)<< 24)| \
							((serialNo&0xff00) << 8)| \
							((serialNo&0xff0000) >> 8)| \
							((serialNo&0xff000000) >> 24);

		// TRACE("id get is %x \n", dispSerNo);
		 return dispSerNo;
		 
     }
	 return 0;
}