/// <summary>
/// the current session disconnected
/// </summary>
void OnSessionDisconnect(MiracastReceiverSession sender, MiracastReceiverDisconnectedEventArgs args)
{
Log("current session disconnected, creating new session...");
if (AutoStartNewSession)
{
StartNewSession();
}
}
/// <summary>
/// a new connection was created
/// </summary>
void OnSessionConnectionCreated(MiracastReceiverSession sender, MiracastReceiverConnectionCreatedEventArgs args)
{
//configure connection
CurrentConnection = args.Connection;
CurrentConnection.InputDevices.Keyboard.TransmitInput = false;
//send pin event
if (!string.IsNullOrWhiteSpace(args.Pin))
{
PinAvailable?.Invoke(CurrentConnection.Transmitter.Name, args.Pin);
}
//start timeout task
currentConnectionTimeoutCancellation = new CancellationTokenSource();
if (DeadConnectionTimeout > 0)
{
Task.Run(async() =>
{
try
{
//wait until timeout
await Task.Delay(DeadConnectionTimeout, currentConnectionTimeoutCancellation.Token);
//check if a media player was created
if (currentPlayer == null)
{
//no media source was created, kill connection
Log($"no media player was created, killing connection to {CurrentConnection?.Transmitter?.MacAddress}");
Invoke(() =>
{
StartNewSession();
});
return;
}
//connection looks fine to me
Log("connection looks healthy, timeout task will now shut down.");
}
catch (TaskCanceledException)
{
//timeout was cancelled
Log("connection timeout was cancelled");
}
});
}
//log details
Log($"new connection created with {CurrentConnection.Transmitter.Name} ({CurrentConnection.Transmitter.MacAddress}). Auth pin is {(string.IsNullOrWhiteSpace(args.Pin) ? "No Pin" : args.Pin)}");
}
/// <summary>
/// end the current cast session, and call CastEnd event
/// </summary>
/// <param name="sendEvent">should CastEnd be called?</param>
void EndCurrentSession(bool sendEvent)
{
currentPlayer?.Pause();
currentPlayer?.Dispose();
currentPlayer = null;
CurrentConnection?.Disconnect(MiracastReceiverDisconnectReason.Finished);
CurrentConnection = null;
currentSession?.Dispose();
currentSession = null;
if (sendEvent)
{
CastEnd?.Invoke();
}
}
/// <summary>
/// ends the old cast session and starts a new one
/// </summary>
public SessionStartResult StartNewSession()
{
//check receiver was initialized
if (castReceiver == null)
{
throw new InvalidOperationException("Miracast receiver was not yet initialized! Call InitReceiver first.");
}
//end old cast session
if (currentSession != null)
{
EndCurrentSession(true);
}
//init cast session, allow takeover
currentSession = castReceiver.CreateSession(/*MainView*/ null);
currentSession.AllowConnectionTakeover = true;
currentSession.MaxSimultaneousConnections = 1;
//register event
currentSession.ConnectionCreated += OnSessionConnectionCreated;
currentSession.MediaSourceCreated += OnSessionMediaSourceCreated;
currentSession.Disconnected += OnSessionDisconnect;
//start receive on session
MiracastReceiverSessionStartResult startResult = currentSession.Start();
Log($"new miracast session initialized. result: {startResult.Status} ({(startResult.ExtendedError == null ? "No Error" : startResult.ExtendedError.ToString())})");
//return correct result, end session if init failed
switch (startResult.Status)
{
case MiracastReceiverSessionStartStatus.Success:
return(SessionStartResult.Success);
case MiracastReceiverSessionStartStatus.MiracastNotSupported:
EndCurrentSession(false);
return(SessionStartResult.MiracastNotSupported);
case MiracastReceiverSessionStartStatus.AccessDenied:
case MiracastReceiverSessionStartStatus.UnknownFailure:
default:
EndCurrentSession(false);
return(SessionStartResult.Failure);
}
}
/// <summary>
/// a media source was created for the current session (start rendering to ui)
/// </summary>
void OnSessionMediaSourceCreated(MiracastReceiverSession sender, MiracastReceiverMediaSourceCreatedEventArgs args)
{
//set flag
currentConnectionTimeoutCancellation?.Cancel();
//init mediaplayer
currentPlayer = new UWPMediaPlayer()
{
Source = args.MediaSource,
IsVideoFrameServerEnabled = false,
AutoPlay = true,
RealTimePlayback = true
};
//call event
CastStart?.Invoke(CurrentConnection.Transmitter.Name, currentPlayer);
//start playback
Log($"starting playback of {CurrentConnection.Transmitter.Name} ({CurrentConnection.Transmitter.MacAddress})");
currentPlayer.Play();
}
