【General】Starting Live View-1
サンプルプログラム
//
// Device Network SDK (General)
// Sample Code of Starting Live View
// Decode and Display via SDK
//
#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: //Reconnect during live view
printf(“———-reconnect——–%d\n”, time(NULL));
break;
default:
break;
}
}
void main() {
//—————————————
// Initialize
NET_DVR_Init();
//Set connection time and reconnection time
NET_DVR_SetConnectTime(2000, 1);
NET_DVR_SetReconnect(10000, true);
//—————————————
//Set callback function for exceptional message
NET_DVR_SetExceptionCallBack_V30(0, NULL,g_ExceptionCallBack, NULL);
//—————————————
// Get the window handle
HMODULE hKernel32 = GetModuleHandle(“kernel32”);
GetConsoleWindowAPI = (PROCGETCONSOLEWINDOW)GetProcAddress(hKernel32,”GetConsoleWindow”);
//—————————————
// Log in to device
LONG lUserID;
//Login parameters, including device IP address, user name, password, and so on.
NET_DVR_USER_LOGIN_INFO struLoginInfo = {0};
struLoginInfo.bUseAsynLogin = 0; //Synchronous login mode
strcpy(struLoginInfo.sDeviceAddress, “10.13.35.229”); //Device IP address
struLoginInfo.wPort = 8000; //Service port No.
strcpy(struLoginInfo.sUserName, “admin”); //User name
strcpy(struLoginInfo.sPassword, “abcd1234”); //Password
//Device information, output parameter
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;
}
//—————————————
//Start live view and set stream callback function
LONG lRealPlayHandle;
HWND hWnd = GetConsoleWindowAPI(); //Get window handle
NET_DVR_PREVIEWINFO struPlayInfo = {0};
struPlayInfo.hPlayWnd = hWnd; //Set the handle as valid for SDK decoding; set the handle as null for streaming only
struPlayInfo.lChannel = 1; //Live view channel No.
struPlayInfo.dwStreamType = 0; //0-Main Stream, 1-Sub Stream, 2-Stream 3, 3-Stream 4, and so on
struPlayInfo.dwLinkMode = 0; //0- TCP Mode, 1- UDP Mode, 2- Multicast Mode, 3- RTP Mode, 4-RTP/RTSP, 5-RSTP/HTTP
struPlayInfo.bBlocked = 1; //0- Non-blocking Streaming, 1- Blocking Streaming
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);
//—————————————
//Stop live view
NET_DVR_StopRealPlay(lRealPlayHandle);
//Log out
NET_DVR_Logout(lUserID);
//Release SDK resource
NET_DVR_Cleanup();
return;
}
Decode and Display via PlayCtrl Library (for API named by the prefix “PlayM4_”, refer to User Manual of Cross-Platform PlayCtrl Library SDK)
#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; //Port No. of global player SDK
void CALLBACK g_RealDataCallBack_V30(LONG lRealHandle, DWORD dwDataType, BYTE *pBuffer,DWORD dwBufSize,void* dwUser)
{
HWND hWnd=GetConsoleWindowAPI();
switch (dwDataType)
{
case NET_DVR_SYSHEAD: //System header
if (m_lPort >= 0)
{
break; //The handle of this channel is areadly obtained before streaming. There is no need to call it in the following.
}
if (!PlayM4_GetPort(&lPort)) //Get unused channel No. of player
{
break;
}
//m_iPort = lPort; //The firstly called back is system header. The ontained player SDK port No. will be assigned to global port No. for next time play.
if (dwBufSize > 0)
{
if (!PlayM4_SetStreamOpenMode(lPort, STREAME_REALTIME)) //Set play mode of real-time stream
{
break;
}
if (!PlayM4_OpenStream(lPort, pBuffer, dwBufSize, 1024*1024)) //Open stream API
{
break;
}
if (!PlayM4_Play(lPort, hWnd)) //Start playing
{
break;
}
}
break;
case NET_DVR_STREAMDATA: //Stream data
if (dwBufSize > 0 && lPort != -1)
{
if (!PlayM4_InputData(lPort, pBuffer, dwBufSize))
{
break;
}
}
break;
default: //Other data
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: //Reconnect during live view
printf(“———-reconnect——–%d\n”, time(NULL));
break;
default:
break;
}
}
void main() {
//—————————————
// Initialize
NET_DVR_Init();
//Set connection time and reconnection time
NET_DVR_SetConnectTime(2000, 1);
NET_DVR_SetReconnect(10000, true);
//—————————————
//Set callback function for exceptional message
NET_DVR_SetExceptionCallBack_V30(0, NULL,g_ExceptionCallBack, NULL);
//—————————————
// Get the window handle
HMODULE hKernel32 = GetModuleHandle(“kernel32”);
GetConsoleWindowAPI = (PROCGETCONSOLEWINDOW)GetProcAddress(hKernel32,”GetConsoleWindow”);
//—————————————
// Log in to device
LONG lUserID;
//Login parameters, including device IP address, user name, password, and so on.
NET_DVR_USER_LOGIN_INFO struLoginInfo = {0};
struLoginInfo.bUseAsynLogin = 0; //Synchronous login mode
strcpy(struLoginInfo.sDeviceAddress, “10.13.35.229”); //Device IP address
struLoginInfo.wPort = 8000; //Service port No.
strcpy(struLoginInfo.sUserName, “admin”); //User name
strcpy(struLoginInfo.sPassword, “abcd1234”); //Password
//Device information, output parameter
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;
}
//—————————————
//Start live view and set stream callback function
LONG lRealPlayHandle;
NET_DVR_PREVIEWINFO struPlayInfo = {0};
struPlayInfo.hPlayWnd = NULL; //Set the handle as valid for SDK decoding; set the handle as null for streaming only
struPlayInfo.lChannel = 1; //Live view channel No.
struPlayInfo.dwStreamType = 0; //0-Main Stream, 1-Sub Stream, 2-Stream 3, 3-Stream 4, and so on
struPlayInfo.dwLinkMode = 0; //0- TCP Mode, 1- UDP Mode, 2- Multicast Mode, 3- RTP Mode, 4-RTP/RTSP, 5-RSTP/HTTP
struPlayInfo.bBlocked = 1; //0- Non-blocking Streaming, 1- Blocking Streaming
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);
//—————————————
//Stop live view
NET_DVR_StopRealPlay(lRealPlayHandle);
//Release player SDK resources
PlayM4_Stop(lPort);
PlayM4_CloseStream(lPort);
PlayM4_FreePort(lPort);
//Log out
NET_DVR_Logout(lUserID);
NET_DVR_Cleanup();
return;
}