protected override int StartFind(int userId, DateTime periodStart, DateTime periodEnd, int channel)
{
NET_DVR_FILECOND_V40 findConditions = new NET_DVR_FILECOND_V40
{
lChannel = channel,
dwFileType = 0xff, // all
dwIsLocked = 0xff, // all, locked and unlocked
struStartTime = new NET_DVR_TIME(periodStart),
struStopTime = new NET_DVR_TIME(periodEnd),
};
return(SdkHelper.InvokeSDK(() => NET_DVR_FindFile_V40(userId, ref findConditions)));
}
public static extern int NET_DVR_FindFile_V40(int lUserID, ref NET_DVR_FILECOND_V40 pFindCond);
public static extern int NET_DVR_FindFile_V40(int lUserID, ref NET_DVR_FILECOND_V40 pFindCond);
//private void Preview(DvrUseInfo info)
//{
// HikVideoApi.NET_DVR_StopRealPlay(info.RealId);
// var hwnd = ptzImage.Handle;
// NET_DVR_PREVIEWINFO lpPreviewInfo = new NET_DVR_PREVIEWINFO();
// lpPreviewInfo.hPlayWnd = hwnd;//预览窗口
// lpPreviewInfo.lChannel = cbxPTZChannel.SelectedIndex + 1;//预te览的设备通道
// lpPreviewInfo.dwStreamType = 0;//码流类型：0-主码流，1-子码流，2-码流3，3-码流4，以此类推
// lpPreviewInfo.dwLinkMode = 0;//连接方式：0- TCP方式，1- UDP方式，2- 多播方式，3- RTP方式，4-RTP/RTSP，5-RSTP/HTTP
// lpPreviewInfo.bBlocked = true; //0- 非阻塞取流，1- 阻塞取流
// lpPreviewInfo.dwDisplayBufNum = 15; //播放库播放缓冲区最大缓冲帧数
// REALDATACALLBACK RealData = new REALDATACALLBACK(RealDataCallBack);//预览实时流回调函数
// IntPtr pUser = new IntPtr();//用户数据
// 打开预览 Start live view
// info.RealId = HikVideoApi.NET_DVR_RealPlay_V40(info.UserId, ref lpPreviewInfo, null/*RealData*/, pUser);
// realId = info.RealId;
// dvrUseInfos.Find(o => o.DvrIp == cbxPTZIp.Text).RealId = info.RealId;
// TxtPTZMsg(AppLogHelper.GetLogStr(string.Format("DvrIp：{0} 端口：{1} 名称：{2} {3} ({4})", info.DvrIp, info.DvrPoint, info.DvrName, realId >= 0 ? "预览图像成功" : "预览图像失败:" + HikOperate.GetLastError(), DateTime.Now), "图像预览"));
//}
#endregion
#region 录像查找
/// <summary>
/// 录像文件查找
/// </summary>
/// <param name="info">登录设备时的UseInfo对象</param>
/// <param name="channel">通道号</param>
/// <param name="startTime">开始时间</param>
/// <param name="endTime">结束时间</param>
/// <param name="useCardNo">是否带ATM信息进行查询</param>
/// <param name="fileType">录象文件类型（根据dwUseCardNo参数是否带卡号查找分为两类,参考枚举 NocardSelectFileType 和 UseCardSelectFileType）</param>
/// <param name="isLocked">是否锁定：0-未锁定文件，1-锁定文件，0xff表示所有文件（包括锁定和未锁定）</param>
/// <returns>返回文件列表</returns>
public List <BackFile> SearchBackFile(ref DvrUseInfo info, int channel, DateTime startTime, DateTime endTime, uint useCardNo = (uint)UseCardSelectWay.带ATM信息, uint fileType = 0xff, uint isLocked = 0xff)
{
List <BackFile> files = new List <BackFile>();
NET_DVR_FILECOND_V40 struFileCond_V40 = new NET_DVR_FILECOND_V40()
{
lChannel = channel, /*通道号 Channel number*/ dwFileType = fileType, /*0xff-全部，0-定时录像，1-移动侦测，2-报警触发，...*/ dwIsLocked = isLocked /*0-未锁定文件，1-锁定文件，0xff表示所有文件（包括锁定和未锁定）*/, dwUseCardNo = useCardNo
};
//设置录像查找的开始时间 Set the starting time to search video files
struFileCond_V40.struStartTime.dwYear = (uint)startTime.Year;
struFileCond_V40.struStartTime.dwMonth = (uint)startTime.Month;
struFileCond_V40.struStartTime.dwDay = (uint)startTime.Day;
struFileCond_V40.struStartTime.dwHour = (uint)startTime.Hour;
struFileCond_V40.struStartTime.dwMinute = (uint)startTime.Minute;
struFileCond_V40.struStartTime.dwSecond = (uint)startTime.Second;
//设置录像查找的结束时间 Set the stopping time to search video files
struFileCond_V40.struStopTime.dwYear = (uint)endTime.Year;
struFileCond_V40.struStopTime.dwMonth = (uint)endTime.Month;
struFileCond_V40.struStopTime.dwDay = (uint)endTime.Day;
struFileCond_V40.struStopTime.dwHour = (uint)endTime.Hour;
struFileCond_V40.struStopTime.dwMinute = (uint)endTime.Minute;
struFileCond_V40.struStopTime.dwSecond = (uint)endTime.Second;
//开始录像文件查找 Start to search video files
int m_lFindHandle = HikVideoApi.NET_DVR_FindFile_V40(info.UserId, ref struFileCond_V40);
if (m_lFindHandle >= 0)
{
NET_DVR_FINDDATA_V30 struFileData = new NET_DVR_FINDDATA_V30();;
while (true)
{
//逐个获取查找到的文件信息 Get file information one by one.
int result = HikVideoApi.NET_DVR_FindNextFile_V30(m_lFindHandle, ref struFileData);
if (result == (int)SelectFileState.NET_DVR_ISFINDING) //正在查找请等待 Searching, please wait
{
continue;
}
else if (result == (int)SelectFileState.NET_DVR_FILE_SUCCESS) //获取文件信息成功 Get the file information successfully
{
files.Add(new BackFile()
{
FileName = struFileData.sFileName, StartTime = new DateTime((int)struFileData.struStartTime.dwYear, (int)struFileData.struStartTime.dwMonth, (int)struFileData.struStartTime.dwDay, (int)struFileData.struStartTime.dwHour, (int)struFileData.struStartTime.dwMinute, (int)struFileData.struStartTime.dwSecond), EndTime = new DateTime((int)struFileData.struStopTime.dwYear, (int)struFileData.struStopTime.dwMonth, (int)struFileData.struStopTime.dwDay, (int)struFileData.struStopTime.dwHour, (int)struFileData.struStopTime.dwMinute, (int)struFileData.struStopTime.dwSecond), FileSize = (int)struFileData.dwFileSize, FileType = (int)struFileData.byFileType, Locked = (int)struFileData.byLocked, CardNum = struFileData.sCardNum
});
}
else if (result == (int)SelectFileState.NET_DVR_FILE_NOFIND || result == (int)SelectFileState.NET_DVR_NOMOREFILE)
{
break; //未查找到文件或者查找结束，退出 No file found or no more file found, search is finished
}
else
{
break;
}
}
HikVideoApi.NET_DVR_FindClose_V30(m_lFindHandle);
}
else
{
int error = HikOperate.GetLastError();
if (error == 19 || error == 4)
{
HikVideoApi.NET_DVR_FindClose_V30(m_lFindHandle);
return(files);
}
if (error == 7 || error == 73)
{
return(null);
}
}
return(files);
}