private void StopSource(CS.VideoSources.Core.IVideoSource processedSource)
{
this._logger.InfoFormat("Stopping source {0} with connection string {1}", (object)processedSource.GetType(), (object)processedSource.ConnectionString);
processedSource.SignalToStop();
processedSource.WaitToStop();
processedSource.VideoSourceError -= new CS.VideoSources.Core.VideoSourceErrorEventHandler(this.HandleVideoSourceError);
this._logger.InfoFormat("Source {0} with connection string {1} stopped successfully", (object)processedSource.GetType(), (object)processedSource.ConnectionString);
}
private void HandleVideoSourceError(object sender, Exception exception, string additionalErrorMessage)
{
CS.VideoSources.Core.IVideoSource videoSource = (CS.VideoSources.Core.IVideoSource)sender;
this._logger.ErrorFormat("Error in videosource. Sender: {0}. Error: {1}, stack: {2}", sender, (object)exception, (object)exception.StackTrace);
try
{
if (!videoSource.IsRunning)
{
return;
}
this._logger.InfoFormat("Try to restart source {0}", (object)videoSource.ConnectionString);
videoSource.Start();
}
catch (Exception ex)
{
this._logger.Error((object)"Error restarting source", ex);
}
}
public void TryAddOrUpdateVideoSource(BcDevices device)
{
this.TryToRemoveVideoSource(device.Id);
string connectionString = VideoServer.GetDeviceConnectionString(device);
IReadOnlyDictionary <string, string> deviceOptions = VideoServer.GetDeviceOptions(device);
CS.VideoSources.Core.IVideoSource videoSource = VideoServer.CreateVideoSource(device.Type, connectionString, device.Login, device.Password, deviceOptions);
if (videoSource != null)
{
this.VideoSources.Add(device.Id, videoSource);
videoSource.VideoSourceError += new CS.VideoSources.Core.VideoSourceErrorEventHandler(this.HandleVideoSourceError);
}
if (videoSource != null)
{
return;
}
this._logger.WarnFormat("Unable to create Video source of type {0} and id {1}", (object)device.Type, (object)device.Id);
}
private void AddOrUpdateVideoSources(IEnumerable <BcDevices> checkDevs)
{
foreach (BcDevices device in checkDevs)
{
bool flag = false;
string connectionString = VideoServer.GetDeviceConnectionString(device);
foreach (KeyValuePair <Guid, CS.VideoSources.Core.IVideoSource> keyValuePair in (IEnumerable <KeyValuePair <Guid, CS.VideoSources.Core.IVideoSource> >) this.VideoSources)
{
CS.VideoSources.Core.IVideoSource videoSource = keyValuePair.Value;
if (!(keyValuePair.Key != device.Id))
{
if (!string.Equals(videoSource.ConnectionString, connectionString, StringComparison.InvariantCultureIgnoreCase))
{
this.TryAddOrUpdateVideoSource(device);
}
flag = true;
break;
}
}
if (!flag)
{
this.TryAddOrUpdateVideoSource(device);
}
CS.VideoSources.Core.IVideoSource processedSource = this.VideoSources[device.Id];
if (device.IsActive && !processedSource.IsRunning)
{
try
{
this._logger.InfoFormat("Starting source {0} with connection string {1}", (object)processedSource.GetType(), (object)processedSource.ConnectionString);
processedSource.Start();
}
catch (Exception ex)
{
this._logger.Error((object)"Error starting source", ex);
this.TryToRemoveVideoSource(device.Id);
}
}
else if (!device.IsActive && processedSource.IsRunning)
{
this.StopSource(processedSource);
}
}
}
private static CS.VideoSources.Core.IVideoSource CreateVideoSource(string type, string connectionString, string login, string password, IReadOnlyDictionary <string, string> options)
{
CS.VideoSources.Core.IVideoSource videoSource = (CS.VideoSources.Core.IVideoSource)null;
switch (type)
{
case "Basler Aviator Series":
videoSource = (CS.VideoSources.Core.IVideoSource) new BaslerVideoSource();
break;
case "Axis":
case "Vocord":
case "Basler":
case "Arecont":
case "Panasonic":
case "HTTP MJPEG":
videoSource = (CS.VideoSources.Core.IVideoSource) new AForgeVideoSource((Func <AForge.Video.IVideoSource>)(() => (AForge.Video.IVideoSource) new MJPEGStream()
{
Login = login,
Password = password
}));
break;
case "Image":
videoSource = (CS.VideoSources.Core.IVideoSource) new ImageSource();
break;
case "File":
videoSource = (CS.VideoSources.Core.IVideoSource) new VideoFileSource();
break;
case "Web":
videoSource = (CS.VideoSources.Core.IVideoSource) new AForgeVideoSource((Func <AForge.Video.IVideoSource>)(() => (AForge.Video.IVideoSource) new VideoCaptureDevice()));
break;
}
if (videoSource != null)
{
videoSource.ConnectionString = connectionString;
videoSource.Options = options;
}
return(videoSource);
}
public CommonContracts.VideoFrame GetLastFrameFromDevice(Guid devId, bool deleteFrame)
{
try
{
this._performanceLogger.Info((object)string.Format("Request DevId = {0}", (object)devId));
if (!this.VideoSources.ContainsKey(devId))
{
return((CommonContracts.VideoFrame)null);
}
CS.VideoSources.Core.IVideoSource videoSource = this.VideoSources[devId];
if (!videoSource.IsRunning)
{
return((CommonContracts.VideoFrame)null);
}
using (CS.VideoSources.Core.VideoFrame currentFrame = videoSource.GetCurrentFrame(deleteFrame))
{
if (currentFrame == null)
{
return((CommonContracts.VideoFrame)null);
}
this._performanceLogger.Info((object)string.Format("Response DevId = {0} FrameId = {1}", (object)devId, (object)currentFrame.Index));
byte[] frameBytes = VideoServer.GetFrameBytes(currentFrame);
return(new CommonContracts.VideoFrame()
{
Frame = frameBytes,
FrameIndex = currentFrame.Index,
Date = DateTimeOffset.Now
});
}
}
catch (Exception ex)
{
this._logger.Error((object)ex);
}
return((CommonContracts.VideoFrame)null);
}
public void StopServer()
{
this._logger.Info((object)"Stopping server");
List <Task> list = new List <Task>();
foreach (CS.VideoSources.Core.IVideoSource videoSource in (IEnumerable <CS.VideoSources.Core.IVideoSource>) this.VideoSources.Values)
{
CS.VideoSources.Core.IVideoSource source = videoSource;
list.Add(Task.Factory.StartNew((Action)(() => this.StopAndDisposeSource(source))));
}
list.Add(Task.Factory.StartNew((Action)(() =>
{
this._logger.Info((object)"Stopping devices check thread");
this._signalToStop = true;
if (this._checkDevicesThread != null && this._checkDevicesThread.IsAlive && !this._checkDevicesThread.Join(4500))
{
this._checkDevicesThread.Abort();
}
this._logger.Info((object)"Devices check thread stopped successfully");
})));
Task.WaitAll(list.ToArray());
this.VideoSources.Clear();
this._logger.Info((object)"Server stopped");
}
private void StopAndDisposeSource(CS.VideoSources.Core.IVideoSource source)
{
this.StopSource(source);
source.Dispose();
}
