/// <summary>
/// 获取摄像机上配置的预置点
/// </summary>
/// <param name="userHandle"></param>
/// <param name="camStation"></param>
/// <returns></returns>
private IEnumerable <FacilityCameraPresetPointDto> GetCameraPresetPoints(int userHandle, FacilityCameraDto facilityCamera)
{
try
{
var cameraPreset = new CHCNetSDK.NET_DVR_GET_PRESET_NAMES();
Int32 dwSize = Marshal.SizeOf(typeof(CHCNetSDK.NET_DVR_GET_PRESET_NAMES));
IntPtr ptrNetCfg = Marshal.AllocHGlobal(dwSize);
Marshal.StructureToPtr(cameraPreset, ptrNetCfg, false);
UInt32 uiOutBufferSize = 0;
bool bGetCfg = false;
bGetCfg = CHCNetSDK.NET_DVR_GetDVRConfig(userHandle, 3383, 1, ptrNetCfg, dwSize, ref uiOutBufferSize);
if (bGetCfg == false)
{
var errorCode = CHCNetSDK.NET_DVR_GetLastError();
WriteLog("读取预置点失败 错误码{0}", errorCode);
return(Enumerable.Empty <FacilityCameraPresetPointDto>());
}
else
{
WriteLog("读取预置点成功");
}
cameraPreset = (CHCNetSDK.NET_DVR_GET_PRESET_NAMES)Marshal.PtrToStructure(ptrNetCfg, typeof(CHCNetSDK.NET_DVR_GET_PRESET_NAMES));
//只取前3个
var points = cameraPreset.StructAs.AsEnumerable().Take(5);
List <FacilityCameraPresetPointDto> list = new List <FacilityCameraPresetPointDto>();
var netDvrGetPresetNames = points as CHCNetSDK.NET_DVR_GET_PRESET_NAME[] ?? points.ToArray();
for (int i = 0; i < netDvrGetPresetNames.Count(); i++)
{
var p = netDvrGetPresetNames.ElementAt(i);
//var positon = p.wPresetNum; //设备返回的位置，只要不是0，即为处于使用状态
//if (!positon.Equals(0))
//{
var name = Encoding.Default.GetString(p.byName).Trim();
var preset = _facilityCameraPresetPoinService.GetByPointAndId(facilityCamera.Serialnum, i + 1);
if (preset == null)
{
preset = new FacilityCameraPresetPointDto
{
Serialnum = Guid.NewGuid().ToString(),
FacilityCameraSerialnum = facilityCamera.Serialnum,
Name = name,
PresetPoint = i + 1
};
_facilityCameraPresetPoinService.Add(preset);
}
else
{
if (preset.Name.Equals(name))
{
preset.Name = name;
}
_facilityCameraPresetPoinService.Update(preset);
}
list.Add(preset);
//}
//else
//{
// CameraStationPresetPoint.DeleteByPosition(camStation.Serialnum, i + 1);
//}
}
//释放非托管资源
Marshal.FreeHGlobal(ptrNetCfg);
return(list);
}
catch (Exception ex)
{
throw;
}
}
/// <summary>
/// 获取摄像机上配置的预置点
/// </summary>
/// <param name="userHandle"></param>
/// <param name="camStation"></param>
/// <returns></returns>
private async Task <IEnumerable <CameraStationPresetPointDto> > GetCameraPresetPoints(int userHandle, CameraStationsDto camStation)
{
var cameraPreset = new CHCNetSDK.NET_DVR_GET_PRESET_NAMES();
Int32 dwSize = Marshal.SizeOf(typeof(CHCNetSDK.NET_DVR_GET_PRESET_NAMES));
IntPtr ptrNetCfg = Marshal.AllocHGlobal(dwSize);
Marshal.StructureToPtr(cameraPreset, ptrNetCfg, false);
UInt32 uiOutBufferSize = 0;
bool bGetCfg = false;
bGetCfg = CHCNetSDK.NET_DVR_GetDVRConfig(userHandle, 3383, 1, ptrNetCfg, dwSize, ref uiOutBufferSize);
if (bGetCfg == false)
{
var errorCode = CHCNetSDK.NET_DVR_GetLastError();
LogHelper.Error("读取预置点失败 错误码{0}", errorCode);
return(Enumerable.Empty <CameraStationPresetPointDto>());
}
else
{
LogHelper.Debug("读取预置点成功");
}
cameraPreset = (CHCNetSDK.NET_DVR_GET_PRESET_NAMES)Marshal.PtrToStructure(ptrNetCfg, typeof(CHCNetSDK.NET_DVR_GET_PRESET_NAMES));
//只取前3个
var points = cameraPreset.StructAs.AsEnumerable().Take(5);
List <CameraStationPresetPointDto> list = new List <CameraStationPresetPointDto>();
for (int i = 0; i < points.Count(); i++)
{
var p = points.ElementAt(i);
//var positon = p.wPresetNum; //设备返回的位置，只要不是0，即为处于使用状态
//if (!positon.Equals(0))
//{
var name = Encoding.Default.GetString(p.byName).Trim();
var preset = await _cameraStationPresetPointService.GetByPointAndIdAsny(camStation.Serialnum, i + 1);
if (preset == null)
{
preset = new CameraStationPresetPointDto();
preset.Serialnum = Guid.NewGuid().ToString();
preset.CameraStationsSerialnum = camStation.Serialnum;
preset.Name = name;
preset.PresetPoint = i + 1;
await _cameraStationPresetPointService.AddAsny(preset);
}
else
{
if (preset.Name.Equals(name))
{
preset.Name = name;
}
await _cameraStationPresetPointService.UpdateAsny(preset);
}
list.Add(preset);
//}
//else
//{
// CameraStationPresetPoint.DeleteByPosition(camStation.Serialnum, i + 1);
//}
}
//释放非托管资源
Marshal.FreeHGlobal(ptrNetCfg);
return(list);
}