public void OnGetServerVersionAndMetadataComplete(Object result, AsyncRequestObject aro)
{
if (result is Exception)
{
}
else
{
m_serverVersion = VIServices.Deserialize <string>(result);
GetServerMetadata();
}
}
public void OnGetDNSComplete(Object result, AsyncRequestObject aro)
{
if (result is Exception)
{
}
else
{
m_serverCommand.ipAddress = (IPAddress)result;
m_serverData.ipAddress = (IPAddress)result;
GetServerVersionAndMetadata();
}
}
public void OnGetLiveConnect(Object result, AsyncRequestObject aro)
{
if (result is Exception)
{
}
else
{
// Store return value to cancel task
AsyncRequestObject aroTask = VIServices.LiveStream((Socket)result, m_onNewLiveFrame, m_cuda);
// save aroTask as member variable so that I can call aroTask.cancel to stop
}
}
public void OnGetServerMetadataComplete(Object result, AsyncRequestObject aro)
{
if (result is Exception)
{
}
else
{
m_serverClass = VIServices.Deserialize <Videoinsight.LIB.Server>(result);
// ready to send command telling server which cameras to stream
if (Connected != null)
{
Connected(this, e); // raise event signaling that server controller is connected, metadata is ready to ready
}
}
}
public static AsyncRequestObject LiveStream(Socket socket, OnNewLiveFrame NewLiveFrameCallback, CancellationTokenSource cts = null, TaskScheduler ts = null)
{
AsyncRequestObject aro = new AsyncRequestObject(cts);
ts = ts == null?TaskScheduler.FromCurrentSynchronizationContext() : ts;
BlockingCollection <LiveCompressedFrame> queueCompressed = new BlockingCollection <LiveCompressedFrame>(1);
#region Streaming task
aro.task = Task.Factory.StartNew(() =>
{
byte[] bytes = null;
HiResTimer t = new HiResTimer();
Int64 t1 = t.Value;
Int64 frames = 0;
while (!aro.CancellationToken.WaitHandle.WaitOne(0))
{
bytes = IPServices.ReceiveOnSocket(socket, aro.CancellationToken, 30000, Marshal.SizeOf(typeof(DATA_FRAME_HEADER)));
if (bytes != null && bytes.Length != 0)
{
// Full header received
GCHandle pinnedPacket = GCHandle.Alloc(bytes, GCHandleType.Pinned);
DATA_FRAME_HEADER dfh = (DATA_FRAME_HEADER)Marshal.PtrToStructure(pinnedPacket.AddrOfPinnedObject(), typeof(DATA_FRAME_HEADER));
pinnedPacket.Free();
// Get frame
bytes = IPServices.ReceiveOnSocket(socket, aro.CancellationToken, 5000, dfh.TotalLength - Marshal.SizeOf(typeof(DATA_FRAME_HEADER)));
if (bytes != null && bytes.Length != 0)
{
//queueCompressed.Add(new LiveCompressedFrame(dfh, bytes), aro.CancellationToken);
Debug.Print(dfh.CameraID.ToString() + " " + bytes.Length.ToString());
// add code here to put frame into decoder input queue
}
else
{
break;
}
}
else
{
// Server closed connection?
break;
}
++frames;
if (frames % 100 == 0)
{
Int64 timeTicks = t.Value - t1;
Int64 timeElapseInSeconds =
timeTicks / t.Frequency;
Debug.Print("Frame rate = {0}", (float)frames / (float)timeElapseInSeconds);
}
}
//fs.Close();
}, aro.CancellationToken, TaskCreationOptions.LongRunning, TaskScheduler.Default);
#endregion
return(aro);
}
