基于MinGW的海康视频监控开发
工程配置
| 项 | 说明 |
| 集成开发环境 | Eclipse 4.3.2 + MinGW工具链（TDM-GCC 4.8） |
| 工程配置 | 工程类型：C++ Project 宏定义：_WIN32、UNICODE 头文件路径：D:\CPP\tools\CH-HCNetSDK\win32-4.3.0.6\include 依赖库：HCNetSDK 库路径：D:\CPP\tools\CH-HCNetSDK\win32-4.3.0.6\dll Linker flags：-mwindows |
基于SDK直接解码的直播样例
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/* * SDKDirectPlayBack.cpp * * Created on: May 14, 2014 * Author: WangZhen */ #include <stdio.h> #include <windows.h> #include "HCNetSDK.h" #include <time.h> class RealPlayInfo { public: LONG lUserID; LONG lRealPlayHandle; RealPlayInfo() : lUserID( -1 ), lRealPlayHandle( -1 ) { } ; bool isSucceed() { return this->lUserID >= 0; } }; void CALLBACK g_ExceptionCallBack( DWORD dwType, LONG lUserID, LONG lHandle, void* pUser ) { switch ( dwType ) { case EXCEPTION_RECONNECT : printf( "Reconnecting...%d\n", time( NULL ) ); break; default : break; } } RealPlayInfo* StartRealPlay( HWND hWnd, char* ip, int port = 8000, int chnl = 1, char* user = "admin", char* pswd = "12345" ) { RealPlayInfo* info = new RealPlayInfo; NET_DVR_DEVICEINFO_V30 struDeviceInfo; info->lUserID = NET_DVR_Login_V30( ip, 8000, user, pswd, &struDeviceInfo ); //登录 if ( info->lUserID < 0 ) { printf( "Failed to logged on to %s, Error Code: %d\n", ip, NET_DVR_GetLastError() ); return info; } else { printf( "Logon successful.\n" ); } NET_DVR_SetExceptionCallBack_V30( 0, NULL, g_ExceptionCallBack, NULL ); //启动预览并设置回调数据流 NET_DVR_PREVIEWINFO struPlayInfo = { 0 }; //使用SDK直接解码 struPlayInfo.hPlayWnd = hWnd; //预览通道号 struPlayInfo.lChannel = chnl; //0主码流，1子码流 struPlayInfo.dwStreamType = 0; //0 TCP，1 UDP，2 多播，3 RTP，4 RTP/RTSP，5 RSTP/HTTP struPlayInfo.dwLinkMode = 0; //0- 非阻塞取流，1- 阻塞取流 struPlayInfo.bBlocked = 1; info->lRealPlayHandle = NET_DVR_RealPlay_V40( info->lUserID, &struPlayInfo, NULL, NULL ); if ( info->lRealPlayHandle < 0 ) { printf( "Failed to start RealPlay.\n" ); NET_DVR_Logout( info->lUserID ); return info; } else { printf( "RealPlay started successfully.\n" ); } return info; } void StopRealPlay( RealPlayInfo* info ) { if ( !info->isSucceed() ) return; printf( "Stopping RealPlay.\n" ); //停止预览 NET_DVR_StopRealPlay( info->lRealPlayHandle ); //注销用户 NET_DVR_Logout( info->lUserID ); } LRESULT CALLBACK WndProc( HWND, UINT, WPARAM, LPARAM ); //窗口过程声明 int main() { HINSTANCE hInstance = GetModuleHandle( NULL ); static TCHAR szAppName[] = TEXT( "HikSDKDirectPlayBack" ); HWND hWnd; MSG msg; WNDCLASS wndclass; wndclass.style = CS_HREDRAW | CS_VREDRAW; wndclass.lpfnWndProc = WndProc; wndclass.cbClsExtra = 0; wndclass.cbWndExtra = 0; wndclass.hInstance = hInstance; wndclass.hIcon = LoadIcon( NULL, IDI_APPLICATION ); wndclass.hCursor = LoadCursor( NULL, IDC_ARROW ); wndclass.hbrBackground = ( HBRUSH ) GetStockObject( BLACK_BRUSH ); wndclass.lpszMenuName = NULL; wndclass.lpszClassName = szAppName; RegisterClass( &wndclass ); int w = 640; int h = 480; hWnd = CreateWindow( szAppName, TEXT("MinGW海康SDK直播实例"), WS_OVERLAPPEDWINDOW, (GetSystemMetrics(SM_CXSCREEN) - w)/2, (GetSystemMetrics(SM_CYSCREEN) - h)/2, w, h, NULL, NULL, hInstance, NULL ); printf( "Main window created.\n" ); printf( "Prepare to render main window.\n" ); ShowWindow( hWnd, 10 ); UpdateWindow( hWnd ); while ( GetMessage( &msg, NULL, 0, 0 ) ) { TranslateMessage( &msg ); DispatchMessage( &msg ); } return msg.wParam; } //窗口过程定义 LRESULT CALLBACK WndProc( HWND hwnd, UINT message, WPARAM wParam, LPARAM IParam ) { HDC hdc; PAINTSTRUCT ps; RECT rect; static RealPlayInfo* info; switch ( message ) { case WM_CREATE : NET_DVR_Init(); NET_DVR_SetConnectTime( 2000, 1 ); NET_DVR_SetReconnect( 10000, true ); info = StartRealPlay( hwnd, "192.168.0.196" ); return 0; case WM_DESTROY : PostQuitMessage( 0 ); StopRealPlay( info ); NET_DVR_Cleanup(); return 0; } return DefWindowProc( hwnd, message, wParam, IParam ); } |
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