public OResult <Boolean> Stop()
{
if (_playbackHandle < 0)
{
return(new OResult <Boolean>(true));
}
if (_playerStatus == PlayerStatus.Stop)
{
return(new OResult <Boolean>(true));
}
try
{
var succ = CHCNetSDK.NET_DVR_StopPlayBack(_playbackHandle);
if (!succ)
{
return(new OResult <Boolean>(false, HkvsErrorCode.GetLastErrorCode(), $"停止播放失败：{HkvsErrorCode.GetLastErrorMessage()}"));
}
_playerStatus = PlayerStatus.Stop;
return(new OResult <Boolean>(true));
}
catch (Exception ex)
{
return(new OResult <Boolean>(false, ex));
}
}
public OResult <Boolean> Logout()
{
if (_userId < 0)
{
return(new OResult <Boolean>(true));
}
try
{
StopPreviewService();
StopPlaybackService();
var succ = CHCNetSDK.NET_DVR_Logout(_userId);
if (!succ)
{
return(new OResult <Boolean>(false, HkvsErrorCode.GetLastErrorCode(), $"注销失败：{HkvsErrorCode.GetLastErrorMessage()}"));
}
_userId = -1;
return(new OResult <Boolean>(true));
}
catch (Exception ex)
{
return(new OResult <Boolean>(false, ex));
}
}
public OResult <Boolean> Play(DateTime startTime, DateTime endTime)
{
var stopResult = Stop();
if (!stopResult.Success)
{
return(new OResult <Boolean>(false, stopResult.ErrorCode, stopResult.Message));
}
try
{
var playParameter = CreateVideoPlayParameter(startTime, endTime);
_playbackHandle = CHCNetSDK.NET_DVR_PlayBackByTime_V40(_userId, ref playParameter);
if (_playbackHandle < 0)
{
return(new OResult <Boolean>(false, HkvsErrorCode.GetLastErrorCode(), $"回放播放失败：{HkvsErrorCode.GetLastErrorMessage()}"));
}
UInt32 iOutValue = 0;
var succ = CHCNetSDK.NET_DVR_PlayBackControl_V40(_playbackHandle, CHCNetSDK.NET_DVR_PLAYSTART, IntPtr.Zero, 0, IntPtr.Zero, ref iOutValue);
if (!succ)
{
return(new OResult <Boolean>(false, HkvsErrorCode.GetLastErrorCode(), $"回放播放失败：{HkvsErrorCode.GetLastErrorMessage()}"));
}
_playerStatus = PlayerStatus.Play;
return(new OResult <Boolean>(true));
}
catch (Exception ex)
{
return(new OResult <Boolean>(false, ex));
}
}
public OResult <Boolean> Close()
{
if (_userId < 0)
{
return(new OResult <Boolean>(false, "用户未登录"));
}
try
{
this.StopRecord();
var succ = CHCNetSDK.NET_DVR_StopRealPlay(_realHandle);
if (!succ)
{
return(new OResult <Boolean>(false, HkvsErrorCode.GetLastErrorCode(), $"停止预览失败：{HkvsErrorCode.GetLastErrorMessage()}"));
}
_inRealPlay = false;
return(new OResult <Boolean>(true));
}
catch (Exception ex)
{
return(new OResult <Boolean>(false, ex));
}
}
public OResult <Boolean> StopRecord()
{
if (_userId < 0)
{
return(new OResult <Boolean>(false, "用户未登录"));
}
if (!_inRecord)
{
return(new OResult <Boolean>(true));
}
try
{
var succ = CHCNetSDK.NET_DVR_StopSaveRealData(_realHandle);
if (!succ)
{
return(new OResult <Boolean>(false, HkvsErrorCode.GetLastErrorCode(), $"停止录像失败：{HkvsErrorCode.GetLastErrorMessage()}"));
}
_inRecord = false;
return(new OResult <Boolean>(true));
}
catch (Exception ex)
{
return(new OResult <Boolean>(false, ex));
}
}
public OResult <DateTime> GetPlayBackOsdTime()
{
try
{
if (_playbackHandle < 0)
{
return(new OResult <DateTime>(DateTime.MinValue, "未找到的视频"));
}
var lpOsdTime = new CHCNetSDK.NET_DVR_TIME();
var succ = CHCNetSDK.NET_DVR_GetPlayBackOsdTime(_playbackHandle, ref lpOsdTime);
if (!succ)
{
return(new OResult <DateTime>(DateTime.MinValue, HkvsErrorCode.GetLastErrorCode(), $"获取OSD时间失败：{HkvsErrorCode.GetLastErrorMessage()}"));
}
var dt = new DateTime((Int32)lpOsdTime.dwYear, (Int32)lpOsdTime.dwMonth, (Int32)lpOsdTime.dwDay, (Int32)lpOsdTime.dwHour, (Int32)lpOsdTime.dwMinute, (Int32)lpOsdTime.dwSecond);
return(new OResult <DateTime>(dt));
}
catch (Exception ex)
{
return(new OResult <DateTime>(DateTime.MinValue, ex));
}
}
public OResult <Boolean> Play(String fileName)
{
var stopResult = Stop();
if (!stopResult.Success)
{
return(new OResult <Boolean>(false, stopResult.ErrorCode, stopResult.Message));
}
try
{
_playbackHandle = CHCNetSDK.NET_DVR_PlayBackByName(_userId, fileName, _hPlayWnd);
if (_playbackHandle < 0)
{
return(new OResult <Boolean>(false, HkvsErrorCode.GetLastErrorCode(), $"回放播放失败：{HkvsErrorCode.GetLastErrorMessage()}"));
}
UInt32 iOutValue = 0;
var succ = CHCNetSDK.NET_DVR_PlayBackControl_V40(_playbackHandle, CHCNetSDK.NET_DVR_PLAYSTART, IntPtr.Zero, 0, IntPtr.Zero, ref iOutValue);
if (!succ)
{
return(new OResult <Boolean>(false, HkvsErrorCode.GetLastErrorCode(), $"回放播放失败：{HkvsErrorCode.GetLastErrorMessage()}"));
}
_playerStatus = PlayerStatus.Play;
return(new OResult <Boolean>(true));
}
catch (Exception ex)
{
return(new OResult <Boolean>(false, ex));
}
}
public OResult <String> StartRecord(String fileName)
{
if (_userId < 0)
{
return(new OResult <String>(null, "用户未登录"));
}
if (_inRecord)
{
return(new OResult <String>(null, "正在录制"));
}
try
{
CHCNetSDK.NET_DVR_MakeKeyFrame(_userId, _channelNo);
var succ = CHCNetSDK.NET_DVR_SaveRealData(_realHandle, fileName);
if (!succ)
{
return(new OResult <String>(null, HkvsErrorCode.GetLastErrorCode(), $"录制失败：{HkvsErrorCode.GetLastErrorMessage()}"));
}
_inRecord = true;
return(new OResult <String>(fileName));//TODO:返回文件路径
}
catch (Exception ex)
{
return(new OResult <String>(null, ex));
}
}
public OResult <Boolean> StopPTZControl(PTZCommand cmd, Int32 speed = 4)
{
try
{
var succ = CHCNetSDK.NET_DVR_PTZControlWithSpeed_Other(_userId, _loginRequest.ChannelNo, (UInt32)cmd, 1, (UInt32)speed);
if (!succ)
{
return(new OResult <Boolean>(false, HkvsErrorCode.GetLastErrorCode(), $"停止摄像头移动失败：{HkvsErrorCode.GetLastErrorMessage()}"));
}
return(new OResult <Boolean>(true));
}
catch (Exception ex)
{
return(new OResult <Boolean>(false, ex));
}
}
public OResult <Boolean> GetDeviceOnlineStatus()
{
try
{
var succ = CHCNetSDK.NET_DVR_RemoteControl(_userId, 20005, IntPtr.Zero, 0);
if (!succ)
{
return(new OResult <Boolean>(false, $"获取设备在线状态失败：{HkvsErrorCode.GetLastErrorMessage()}"));
}
return(new OResult <Boolean>(true));
}
catch (Exception ex)
{
return(new OResult <Boolean>(false, ex));
}
}
public OResult <Boolean> UpdateRecordIndex()
{
try
{
var succ = CHCNetSDK.NET_DVR_UpdateRecordIndex(_userId, _loginRequest.ChannelNo);
if (!succ)
{
return(new OResult <Boolean>(false, HkvsErrorCode.GetLastErrorCode(), $"即时刷新录像索引失败：{HkvsErrorCode.GetLastErrorMessage()}"));
}
return(new OResult <Boolean>(true));
}
catch (Exception ex)
{
return(new OResult <Boolean>(false, ex));
}
}
public OResult <Boolean> StopRecord()
{
try
{
var succ = CHCNetSDK.NET_DVR_StopDVRRecord(_userId, _loginRequest.ChannelNo);
if (!succ)
{
return(new OResult <Boolean>(false, HkvsErrorCode.GetLastErrorCode(), $"停止录像失败：{HkvsErrorCode.GetLastErrorMessage()}"));
}
return(new OResult <Boolean>(true));
}
catch (Exception ex)
{
return(new OResult <Boolean>(false, ex));
}
}
public OResult <Boolean> Control(Int32 cmd)
{
try
{
UInt32 iOutValue = 0;
var succ = CHCNetSDK.NET_DVR_PlayBackControl_V40(_playbackHandle, (UInt32)cmd, IntPtr.Zero, 0, IntPtr.Zero, ref iOutValue);
if (!succ)
{
return(new OResult <Boolean>(false, HkvsErrorCode.GetLastErrorCode(), $"操作失败：{HkvsErrorCode.GetLastErrorMessage()}"));
}
return(new OResult <Boolean>(true));
}
catch (Exception ex)
{
return(new OResult <Boolean>(false, ex));
}
}
public OResult <Byte[]> CapturePicture()
{
if (_userId < 0)
{
return(new OResult <Byte[]>(null, "用户未登录"));
}
try
{
//图片保存路径和文件名
//var picFileName = $"User_{_userId}_{DateTimeHelper.GetTimestamp()}.jpg";
CHCNetSDK.NET_DVR_JPEGPARA lpJpegPara = new CHCNetSDK.NET_DVR_JPEGPARA();
lpJpegPara.wPicQuality = 0; //图像质量 Image quality
lpJpegPara.wPicSize = 0xff; //抓图分辨率 Picture size: 2- 4CIF，0xff- Auto(使用当前码流分辨率)，抓图分辨率需要设备支持，更多取值请参考SDK文档
//var captureSucc = CHCNetSDK.NET_DVR_CaptureJPEGPicture(_userId, _loginRequest.ChannelNo, ref lpJpegPara, picFileName);
//if (!captureSucc)
//{
// return new OResult<Byte[]>(null, $"抓图失败：{GetLastErrorCode()}");
//}
UInt32 iBuffSize = 10 * 1024 * 1024; //缓冲区大小需要不小于一张图片数据的大小 The buffer size should not be less than the picture size
Byte[] byJpegPicBuffer = new Byte[iBuffSize];
UInt32 dwSizeReturned = 0;
var captureSucc = CHCNetSDK.NET_DVR_CaptureJPEGPicture_NEW(_userId, _loginRequest.ChannelNo, ref lpJpegPara, byJpegPicBuffer, iBuffSize, ref dwSizeReturned);
if (!captureSucc)
{
return(new OResult <Byte[]>(null, HkvsErrorCode.GetLastErrorCode(), $"抓图失败：{HkvsErrorCode.GetLastErrorMessage()}"));
}
var data = new Byte[dwSizeReturned];
Buffer.BlockCopy(byJpegPicBuffer, 0, data, 0, data.Length);
return(new OResult <Byte[]>(data));
}
catch (Exception ex)
{
return(new OResult <Byte[]>(null, ex));
}
}
public OResult <Boolean> Login(CameraLoginRequest request)
{
try
{
var struLogInfo = new CHCNetSDK.NET_DVR_USER_LOGIN_INFO();
//设备IP地址或者域名
Byte[] byIP = Encoding.Default.GetBytes(request.IP);
struLogInfo.sDeviceAddress = new Byte[129];
byIP.CopyTo(struLogInfo.sDeviceAddress, 0);
//设备服务端口号
struLogInfo.wPort = (UInt16)request.LoginPort;
//设备用户名
Byte[] byUserName = Encoding.Default.GetBytes(request.UserName);
struLogInfo.sUserName = new Byte[64];
byUserName.CopyTo(struLogInfo.sUserName, 0);
//设备密码
Byte[] byPassword = Encoding.Default.GetBytes(request.Password);
struLogInfo.sPassword = new Byte[64];
byPassword.CopyTo(struLogInfo.sPassword, 0);
struLogInfo.cbLoginResult = new CHCNetSDK.LOGINRESULTCALLBACK(LoginCallBack);
struLogInfo.bUseAsynLogin = false;
_deviceInfo = new CHCNetSDK.NET_DVR_DEVICEINFO_V40();
_userId = CHCNetSDK.NET_DVR_Login_V40(ref struLogInfo, ref _deviceInfo);
if (_userId < 0)
{
return(new OResult <Boolean>(false, HkvsErrorCode.GetLastErrorCode(), $"登录失败：{HkvsErrorCode.GetLastErrorMessage()}"));
}
_loginRequest = request;
return(new OResult <Boolean>(true));
}
catch (Exception ex)
{
return(new OResult <Boolean>(false, ex));
}
}
public OResult <Boolean> Open()
{
if (_userId < 0)
{
return(new OResult <Boolean>(false, "用户未登录"));
}
if (_inRealPlay)
{
return(new OResult <Boolean>(true));
}
try
{
var lpPreviewInfo = new CHCNetSDK.NET_DVR_PREVIEWINFO();
lpPreviewInfo.hPlayWnd = _hPlayWnd; //预览窗口
lpPreviewInfo.lChannel = _channelNo; //预览的设备通道
lpPreviewInfo.dwStreamType = (UInt32)_streamType; //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
lpPreviewInfo.byProtoType = 0;
lpPreviewInfo.byPreviewMode = 0;
_realHandle = CHCNetSDK.NET_DVR_RealPlay_V40(_userId, ref lpPreviewInfo, null, IntPtr.Zero);
if (_realHandle < 0)
{
return(new OResult <Boolean>(false, HkvsErrorCode.GetLastErrorCode(), $"开始预览失败：{HkvsErrorCode.GetLastErrorMessage()}"));
}
_inRealPlay = true;
return(new OResult <Boolean>(true));
}
catch (Exception ex)
{
return(new OResult <Boolean>(false, ex));
}
}
private OResult <Boolean> PTZPreset(Int32 command, Int32 presetIndex)
{
try
{
if (presetIndex < 1 || presetIndex > 255)
{
return(new OResult <Boolean>(false, "预置点超出范围[1-255]"));
}
var succ = CHCNetSDK.NET_DVR_PTZPreset_Other(_userId, _loginRequest.ChannelNo, (UInt32)command, (UInt32)presetIndex);
if (!succ)
{
return(new OResult <Boolean>(false, HkvsErrorCode.GetLastErrorCode(), $"操作预置点失败：{HkvsErrorCode.GetLastErrorMessage()}"));
}
return(new OResult <Boolean>(true));
}
catch (Exception ex)
{
return(new OResult <Boolean>(false, ex));
}
}
public OResult <Boolean> Reboot()
{
try
{
if (_userId < 0)
{
return(new OResult <Boolean>(false, "用户未登录"));
}
var succ = CHCNetSDK.NET_DVR_RebootDVR(_userId);
if (!succ)
{
return(new OResult <Boolean>(false, HkvsErrorCode.GetLastErrorCode(), $"重启摄像头失败：{HkvsErrorCode.GetLastErrorMessage()}"));
}
return(new OResult <Boolean>(true));
}
catch (Exception ex)
{
return(new OResult <Boolean>(false, ex));
}
}
public OResult <Boolean> CapturePicture(String savePath)
{
if (_userId < 0)
{
return(new OResult <Boolean>(false, "用户未登录"));
}
try
{
var captureSucc = CHCNetSDK.NET_DVR_PlayBackCaptureFile(_playbackHandle, savePath);
if (!captureSucc)
{
return(new OResult <Boolean>(false, HkvsErrorCode.GetLastErrorCode(), $"抓图失败：{HkvsErrorCode.GetLastErrorMessage()}"));
}
return(new OResult <Boolean>(true));
}
catch (Exception ex)
{
return(new OResult <Boolean>(false, ex));
}
}
public OResult <Boolean> Fast()
{
if (_playerStatus == PlayerStatus.Stop)
{
return(new OResult <Boolean>(false, "播放已停止"));
}
try
{
UInt32 iOutValue = 0;
var succ = CHCNetSDK.NET_DVR_PlayBackControl_V40(_playbackHandle, CHCNetSDK.NET_DVR_PLAYFAST, IntPtr.Zero, 0, IntPtr.Zero, ref iOutValue);
if (!succ)
{
return(new OResult <Boolean>(false, HkvsErrorCode.GetLastErrorCode(), $"快进失败：{HkvsErrorCode.GetLastErrorMessage()}"));
}
return(new OResult <Boolean>(true));
}
catch (Exception ex)
{
return(new OResult <Boolean>(false, ex));
}
}
public OResult <Boolean> Resume()
{
if (_playerStatus != PlayerStatus.Pause)
{
return(new OResult <Boolean>(true));
}
try
{
UInt32 iOutValue = 0;
var succ = CHCNetSDK.NET_DVR_PlayBackControl_V40(_playbackHandle, CHCNetSDK.NET_DVR_PLAYNORMAL, IntPtr.Zero, 0, IntPtr.Zero, ref iOutValue);
if (!succ)
{
return(new OResult <Boolean>(false, HkvsErrorCode.GetLastErrorCode(), $"暂停播放失败：{HkvsErrorCode.GetLastErrorMessage()}"));
}
_playerStatus = PlayerStatus.Play;
return(new OResult <Boolean>(true));
}
catch (Exception ex)
{
return(new OResult <Boolean>(false, ex));
}
}
private OResult <IEnumerable <CameraPlaybackRecordTimeRange> > GetDayRecordTimeRanges(Int32 channelNo, DateTime date)
{
try
{
CHCNetSDK.NET_DVR_FILECOND_V40 struFileCond_V40 = new CHCNetSDK.NET_DVR_FILECOND_V40();
struFileCond_V40.lChannel = channelNo; //通道号
struFileCond_V40.dwFileType = 0xff; //0xff-全部，0-定时录像，1-移动侦测，2-报警触发，...
struFileCond_V40.dwIsLocked = 0xff; //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）
//设置录像查找的开始时间
struFileCond_V40.struStartTime.dwYear = (UInt32)date.Year;
struFileCond_V40.struStartTime.dwMonth = (UInt32)date.Month;
struFileCond_V40.struStartTime.dwDay = (UInt32)date.Day;
struFileCond_V40.struStartTime.dwHour = 0;
struFileCond_V40.struStartTime.dwMinute = 0;
struFileCond_V40.struStartTime.dwSecond = 0;
//设置录像查找的结束时间
struFileCond_V40.struStopTime.dwYear = (UInt32)date.Year;
struFileCond_V40.struStopTime.dwMonth = (UInt32)date.Month;
struFileCond_V40.struStopTime.dwDay = (UInt32)date.Day;
struFileCond_V40.struStopTime.dwHour = 23;
struFileCond_V40.struStopTime.dwMinute = 59;
struFileCond_V40.struStopTime.dwSecond = 59;
//开始录像文件查找 Start to search video files
var m_lFindHandle = CHCNetSDK.NET_DVR_FindFile_V40(_userId, ref struFileCond_V40);
if (m_lFindHandle < 0)
{
return(new OResult <IEnumerable <CameraPlaybackRecordTimeRange> >(null, HkvsErrorCode.GetLastErrorCode(), $"查找录像文件失败：{HkvsErrorCode.GetLastErrorMessage()}"));
}
else
{
CHCNetSDK.NET_DVR_FINDDATA_V30 struFileData = new CHCNetSDK.NET_DVR_FINDDATA_V30();
var ranges = new List <CameraPlaybackRecordTimeRange>();
while (true)
{
//逐个获取查找到的文件信息
var result = CHCNetSDK.NET_DVR_FindNextFile_V30(m_lFindHandle, ref struFileData);
if (result == CHCNetSDK.NET_DVR_ISFINDING) //正在查找请等待
{
continue;
}
else if (result == CHCNetSDK.NET_DVR_FILE_SUCCESS) //获取文件信息成功
{
var startTime = new DateTime((Int32)struFileData.struStartTime.dwYear, (Int32)struFileData.struStartTime.dwMonth, (Int32)struFileData.struStartTime.dwDay, (Int32)struFileData.struStartTime.dwHour, (Int32)struFileData.struStartTime.dwMinute, (Int32)struFileData.struStartTime.dwSecond);
var endTime = new DateTime((Int32)struFileData.struStopTime.dwYear, (Int32)struFileData.struStopTime.dwMonth, (Int32)struFileData.struStopTime.dwDay, (Int32)struFileData.struStopTime.dwHour, (Int32)struFileData.struStopTime.dwMinute, (Int32)struFileData.struStopTime.dwSecond);
ranges.Add(new CameraPlaybackRecordTimeRange()
{
StartTime = startTime,
EndTime = endTime
});
}
else if (result == CHCNetSDK.NET_DVR_FILE_NOFIND || result == CHCNetSDK.NET_DVR_NOMOREFILE)
{
break; //未查找到文件或者查找结束，退出
}
else
{
break;
}
}
MergetRanges(ref ranges);
return(new OResult <IEnumerable <CameraPlaybackRecordTimeRange> >(ranges.Any() ? ranges : null));
}
}
catch (Exception ex)
{
return(new OResult <IEnumerable <CameraPlaybackRecordTimeRange> >(null, ex));
}
}
public async Task <OResult <Boolean> > BackupByTimeAsync(DateTime from, DateTime to, CancellationToken cancellationToken = default)
{
try
{
var lpDiskList = new CHCNetSDK.NET_DVR_DISKABILITY_LIST();
lpDiskList.dwSize = (UInt32)Marshal.SizeOf(lpDiskList);
var succ = CHCNetSDK.NET_DVR_GetDiskList(_userId, ref lpDiskList);
if (!succ)
{
return(new OResult <Boolean>(false, HkvsErrorCode.GetLastErrorCode(), $"获取磁盘列表失败：{HkvsErrorCode.GetLastErrorMessage()}"));
}
if (!lpDiskList.struDescNode.Any())
{
return(new OResult <Boolean>(false, "可用磁盘列表为空"));
}
var availableDesc = lpDiskList.struDescNode.Where(x => x.dwFreeSpace > 0).Select(x => x.byDescribe).FirstOrDefault();
if (availableDesc == null || !availableDesc.Any())
{
return(new OResult <Boolean>(false, "磁盘空间不足"));
}
var lpBackupByTime = new CHCNetSDK.NET_DVR_BACKUP_TIME_PARAM();
lpBackupByTime.lChannel = _loginRequest.ChannelNo;
lpBackupByTime.struStartTime.dwYear = (UInt32)from.Year;
lpBackupByTime.struStartTime.dwMonth = (UInt32)from.Month;
lpBackupByTime.struStartTime.dwDay = (UInt32)from.Day;
lpBackupByTime.struStartTime.dwHour = (UInt32)from.Hour;
lpBackupByTime.struStartTime.dwMinute = (UInt32)from.Minute;
lpBackupByTime.struStartTime.dwSecond = (UInt32)from.Second;
lpBackupByTime.struStopTime.dwYear = (UInt32)to.Year;
lpBackupByTime.struStopTime.dwMonth = (UInt32)to.Month;
lpBackupByTime.struStopTime.dwDay = (UInt32)to.Day;
lpBackupByTime.struStopTime.dwHour = (UInt32)to.Hour;
lpBackupByTime.struStopTime.dwMinute = (UInt32)to.Minute;
lpBackupByTime.struStopTime.dwSecond = (UInt32)to.Second;
lpBackupByTime.byDiskDes = availableDesc; //备份磁盘的描述
lpBackupByTime.byWithPlayer = 0; //是否备份播放器，0-不备份，1-备份
lpBackupByTime.byContinue = 0; //是否继续备份，0-不继续，1-继续
lpBackupByTime.byDrawFrame = 0; //0-不抽帧，1-抽帧
var backUpHandle = CHCNetSDK.NET_DVR_BackupByTime(_userId, ref lpBackupByTime);
if (backUpHandle < 0)
{
return(new OResult <Boolean>(false, $"按时间备份录像失败：{HkvsErrorCode.GetLastErrorMessage()}"));
}
var tcs = new TaskCompletionSource <Boolean>();
_ = Task.Run(async() =>
{
UInt32 iPos = 0;
IntPtr pState = Marshal.AllocHGlobal((Int32)iPos);
Marshal.StructureToPtr(iPos, pState, false);
try
{
while (!cancellationToken.IsCancellationRequested)
{
var succ = CHCNetSDK.NET_DVR_GetBackupProgress(backUpHandle, pState);
if (succ)
{
iPos = (UInt32)Marshal.PtrToStructure(pState, typeof(UInt32));
if (iPos == 100)
{
CHCNetSDK.NET_DVR_StopBackup(backUpHandle);
tcs.SetResult(true);
return;
}
else if (iPos == 101 || iPos >= 400)
{
CHCNetSDK.NET_DVR_StopBackup(backUpHandle);
return;
}
}
await Task.Delay(1000);
}
}
finally
{
Marshal.FreeHGlobal(pState);
}
}, CancellationToken.None);
succ = await tcs.Task;
if (!succ)
{
return(new OResult <Boolean>(false, "按时间下载失败"));
}
return(new OResult <Boolean>(true));
}
catch (Exception ex)
{
return(new OResult <Boolean>(false, ex));
}
}
public async Task <OResult <Boolean> > DownloadByTimeAsync(DownloadFileByTimeRequest request, CancellationToken cancellationToken = default)
{
try
{
var now = DateTime.Now;
if (request.From > now)
{
request.From = now;
}
if (request.To > now)
{
request.To = now;
}
if (request.From > request.To)
{
request.To = DateTime.Now;
}
CHCNetSDK.NET_DVR_PLAYCOND struDownPara = new CHCNetSDK.NET_DVR_PLAYCOND();
struDownPara.dwChannel = (UInt32)_loginRequest.ChannelNo;
//设置下载的开始时间
struDownPara.struStartTime.dwYear = (UInt32)request.From.Year;
struDownPara.struStartTime.dwMonth = (UInt32)request.From.Month;
struDownPara.struStartTime.dwDay = (UInt32)request.From.Day;
struDownPara.struStartTime.dwHour = (UInt32)request.From.Hour;
struDownPara.struStartTime.dwMinute = (UInt32)request.From.Minute;
struDownPara.struStartTime.dwSecond = (UInt32)request.From.Second;
//设置下载的结束时间
struDownPara.struStopTime.dwYear = (UInt32)request.To.Year;
struDownPara.struStopTime.dwMonth = (UInt32)request.To.Month;
struDownPara.struStopTime.dwDay = (UInt32)request.To.Day;
struDownPara.struStopTime.dwHour = (UInt32)request.To.Hour;
struDownPara.struStopTime.dwMinute = (UInt32)request.To.Minute;
struDownPara.struStopTime.dwSecond = (UInt32)request.To.Second;
var m_lDownHandle = CHCNetSDK.NET_DVR_GetFileByTime_V40(_userId, request.FilePath, ref struDownPara);
if (m_lDownHandle < 0)
{
return(new OResult <Boolean>(false, HkvsErrorCode.GetLastErrorCode(), $"按时间下载失败：{HkvsErrorCode.GetLastErrorMessage()}"));
}
UInt32 iOutValue = 0;
var succ = CHCNetSDK.NET_DVR_PlayBackControl_V40(m_lDownHandle, CHCNetSDK.NET_DVR_PLAYSTART, IntPtr.Zero, 0, IntPtr.Zero, ref iOutValue);
if (!succ)
{
return(new OResult <Boolean>(false, HkvsErrorCode.GetLastErrorCode(), $"按时间下载失败：{HkvsErrorCode.GetLastErrorMessage()}"));
}
var tcs = new TaskCompletionSource <Boolean>();
_ = Task.Run(async() =>
{
var iPos = 0;
while (!cancellationToken.IsCancellationRequested)
{
iPos = CHCNetSDK.NET_DVR_GetDownloadPos(m_lDownHandle);
switch (iPos)
{
case 100:
CHCNetSDK.NET_DVR_StopGetFile(m_lDownHandle);
tcs.SetResult(true);
return;
case 200:
tcs.SetException(new SystemException("网络中断"));
CHCNetSDK.NET_DVR_StopGetFile(m_lDownHandle);
return;
}
await Task.Delay(1000);
}
}, CancellationToken.None);
succ = await tcs.Task;
if (!succ)
{
return(new OResult <Boolean>(false, "按时间下载失败"));
}
return(new OResult <Boolean>(true));
}
catch (Exception ex)
{
return(new OResult <Boolean>(false, ex));
}
}
