方法一.SDK 实现解码显示
#include <stdio.h>
#include <iostream>
#include "Windows.h"
#include "HCNetSDK.h"
#include <time.h>
using namespace std;
typedef HWND (WINAPI *PROCGETCONSOLEWINDOW)();
PROCGETCONSOLEWINDOW GetConsoleWindowAPI;
void CALLBACK g_ExceptionCallBack(DWORD dwType, LONG lUserID, LONG lHandle, void *pUser)
{
char tempbuf[256] = {0};
switch(dwType)
{
case EXCEPTION_RECONNECT: //预览时重连
printf("----------reconnect--------%d\n", time(NULL));
break;
default:
break;
}
}
void main() {
//---------------------------------------
// 初始化
NET_DVR_Init();
//设置连接时间与重连时间
NET_DVR_SetConnectTime(2000, 1);
NET_DVR_SetReconnect(10000, true);
//---------------------------------------
//设置异常消息回调函数
NET_DVR_SetExceptionCallBack_V30(0, NULL,g_ExceptionCallBack, NULL);
//---------------------------------------
// 获取控制台窗口句柄
HMODULE hKernel32 = GetModuleHandle("kernel32");
GetConsoleWindowAPI = (PROCGETCONSOLEWINDOW)GetProcAddress(hKernel32,"GetConsoleWindow");
//---------------------------------------
// 注册设备
LONG lUserID;
//登录参数,包括设备地址、登录用户、密码等
NET_DVR_USER_LOGIN_INFO struLoginInfo = {0};
struLoginInfo.bUseAsynLogin = 0; //同步登录方式
strcpy(struLoginInfo.sDeviceAddress, "10.13.35.229"); //设备IP地址
struLoginInfo.wPort = 8000; //设备服务端口
strcpy(struLoginInfo.sUserName, "admin"); //设备登录用户名
strcpy(struLoginInfo.sPassword, "abcd1234"); //设备登录密码
//设备信息, 输出参数
NET_DVR_DEVICEINFO_V40 struDeviceInfoV40 = {0};
lUserID = NET_DVR_Login_V40(&struLoginInfo, &struDeviceInfoV40);
if (lUserID < 0)
{
printf("Login failed, error code: %d\n", NET_DVR_GetLastError());
NET_DVR_Cleanup();
return;
}
//---------------------------------------
//启动预览并设置回调数据流
LONG lRealPlayHandle;
HWND hWnd = GetConsoleWindowAPI(); //获取窗口句柄
NET_DVR_PREVIEWINFO struPlayInfo = {0};
struPlayInfo.hPlayWnd = hWnd; //需要SDK解码时句柄设为有效值,仅取流不解码时可设为空
struPlayInfo.lChannel = 1; //预览通道号
struPlayInfo.dwStreamType = 0; //0-主码流,1-子码流,2-码流3,3-码流4,以此类推
struPlayInfo.dwLinkMode = 0; //0- TCP方式,1- UDP方式,2- 多播方式,3- RTP方式,4-RTP/RTSP,5-RSTP/HTTP
struPlayInfo.bBlocked = 1; //0- 非阻塞取流,1- 阻塞取流
lRealPlayHandle = NET_DVR_RealPlay_V40(lUserID, &struPlayInfo, NULL, NULL);
if (lRealPlayHandle < 0)
{
printf("NET_DVR_RealPlay_V40 error\n");
NET_DVR_Logout(lUserID);
NET_DVR_Cleanup();
return;
}
Sleep(10000);
//---------------------------------------
//关闭预览
NET_DVR_StopRealPlay(lRealPlayHandle);
//注销用户
NET_DVR_Logout(lUserID);
//释放SDK资源
NET_DVR_Cleanup();
return;
}
方法二:用户自行处理回调得到的码流数据,此处以软解显示为例,代码中带有PlayM4_的函数请参见播放库SDK开发包里面的《播放器SDK编程指南
#include <stdio.h>
#include <iostream>
#include "Windows.h"
#include "HCNetSDK.h"
#include "plaympeg4.h"
#include <time.h>
using namespace std;
typedef HWND (WINAPI *PROCGETCONSOLEWINDOW)();
PROCGETCONSOLEWINDOW GetConsoleWindowAPI;
LONG lPort = -1; //全局的播放库port号
void CALLBACK g_RealDataCallBack_V30(LONG lRealHandle, DWORD dwDataType, BYTE *pBuffer,DWORD dwBufSize,void* dwUser)
{
HWND hWnd=GetConsoleWindowAPI();
switch (dwDataType)
{
case NET_DVR_SYSHEAD: //系统头
if (lPort >= 0)
{
break; //该通道取流之前已经获取到句柄,后续接口不需要再调用
}
if (!PlayM4_GetPort(&lPort)) //获取播放库未使用的通道号
{
break;
}
//m_iPort = lPort; //第一次回调的是系统头,将获取的播放库port号赋值给全局port,下次回调数据时即使用此port号播放
if (dwBufSize > 0)
{
if (!PlayM4_SetStreamOpenMode(lPort, STREAME_REALTIME)) //设置实时流播放模式
{
break;
}
if (!PlayM4_OpenStream(lPort, pBuffer, dwBufSize, 1024*1024)) //打开流接口
{
break;
}
if (!PlayM4_Play(lPort, hWnd)) //播放开始
{
break;
}
}
break;
case NET_DVR_STREAMDATA: //码流数据
if (dwBufSize > 0 && lPort != -1)
{
if (!PlayM4_InputData(lPort, pBuffer, dwBufSize))
{
break;
}
}
break;
default: //其他数据
if (dwBufSize > 0 && lPort != -1)
{
if (!PlayM4_InputData(lPort, pBuffer, dwBufSize))
{
break;
}
}
break;
}
}
void CALLBACK g_ExceptionCallBack(DWORD dwType, LONG lUserID, LONG lHandle, void *pUser)
{
char tempbuf[256] = {0};
switch(dwType)
{
case EXCEPTION_RECONNECT: //预览时重连
printf("----------reconnect--------%d\n", time(NULL));
break;
default:
break;
}
}
void main() {
//---------------------------------------
// 初始化
NET_DVR_Init();
//设置连接时间与重连时间
NET_DVR_SetConnectTime(2000, 1);
NET_DVR_SetReconnect(10000, true);
//---------------------------------------
//设置异常消息回调函数
NET_DVR_SetExceptionCallBack_V30(0, NULL,g_ExceptionCallBack, NULL);
//---------------------------------------
// 获取控制台窗口句柄
HMODULE hKernel32 = GetModuleHandle("kernel32");
GetConsoleWindowAPI = (PROCGETCONSOLEWINDOW)GetProcAddress(hKernel32,"GetConsoleWindow");
//---------------------------------------
// 注册设备
LONG lUserID;
//登录参数,包括设备地址、登录用户、密码等
NET_DVR_USER_LOGIN_INFO struLoginInfo = {0};
struLoginInfo.bUseAsynLogin = 0; //同步登录方式
strcpy(struLoginInfo.sDeviceAddress, "10.13.35.229"); //设备IP地址
struLoginInfo.wPort = 8000; //设备服务端口
strcpy(struLoginInfo.sUserName, "admin"); //设备登录用户名
strcpy(struLoginInfo.sPassword, "abcd1234"); //设备登录密码
//设备信息, 输出参数
NET_DVR_DEVICEINFO_V40 struDeviceInfoV40 = {0};
lUserID = NET_DVR_Login_V40(&struLoginInfo, &struDeviceInfoV40);
if (lUserID < 0)
{
printf("Login failed, error code: %d\n", NET_DVR_GetLastError());
NET_DVR_Cleanup();
return;
}
//---------------------------------------
//启动预览并设置回调数据流
LONG lRealPlayHandle;
NET_DVR_PREVIEWINFO struPlayInfo = {0};
struPlayInfo.hPlayWnd = NULL; //需要SDK解码时句柄设为有效值,仅取流不解码时可设为空
struPlayInfo.lChannel = 1; //预览通道号
struPlayInfo.dwStreamType = 0; //0-主码流,1-子码流,2-码流3,3-码流4,以此类推
struPlayInfo.dwLinkMode = 0; //0- TCP方式,1- UDP方式,2- 多播方式,3- RTP方式,4-RTP/RTSP,5-RSTP/HTTP
struPlayInfo.bBlocked = 1; //0- 非阻塞取流,1- 阻塞取流
lRealPlayHandle = NET_DVR_RealPlay_V40(lUserID, &struPlayInfo, g_RealDataCallBack_V30, NULL);
if (lRealPlayHandle < 0)
{
printf("NET_DVR_RealPlay_V40 error, %d\n", NET_DVR_GetLastError());
NET_DVR_Logout(lUserID);
NET_DVR_Cleanup();
return;
}
Sleep(10000);
//---------------------------------------
//关闭预览
NET_DVR_StopRealPlay(lRealPlayHandle);
//释放播放库资源
PlayM4_Stop(lPort);
PlayM4_CloseStream(lPort);
PlayM4_FreePort(lPort);
//注销用户
NET_DVR_Logout(lUserID);
NET_DVR_Cleanup();
return;
}