public AudioDeviceSessionCollection(IAudioDevice parent, IMMDevice device)
{
Trace.WriteLine($"AudioDeviceSessionCollection Create dev={device.GetId()}");
_parent = new WeakReference <IAudioDevice>(parent);
_dispatcher = App.Current.Dispatcher;
Task.Factory.StartNew(() =>
{
try
{
_sessionManager = device.Activate <IAudioSessionManager2>();
_sessionManager.RegisterSessionNotification(this);
var enumerator = _sessionManager.GetSessionEnumerator();
int count = enumerator.GetCount();
for (int i = 0; i < count; i++)
{
CreateAndAddSession(enumerator.GetSession(i));
}
}
catch (Exception ex)
{
Trace.TraceError($"{ex}");
}
});
}
private void RegisterNotifications()
{
UnregisterNotifications();
_audioSessionNotification = new AudioSessionNotification();
Marshal.ThrowExceptionForHR(_audioSessionManager2.RegisterSessionNotification(_audioSessionNotification));
}
public void RefreshSessions()
{
UnregisterNotifications();
Marshal.ThrowExceptionForHR(_AudioSessionManager2.GetSessionEnumerator(out IAudioSessionEnumerator _SessionEnum));
_Sessions = new SessionCollection(_SessionEnum);
_AudioSessionNotification = new AudioSessionNotification(this);
Marshal.ThrowExceptionForHR(_AudioSessionManager2.RegisterSessionNotification(_AudioSessionNotification));
}
/// <summary>
/// Refresh session of current device.
/// </summary>
public void RefreshSessions()
{
UnregisterNotifications();
if (audioSessionInterface2 != null)
{
Marshal.ThrowExceptionForHR(audioSessionInterface2.GetSessionEnumerator(out var sessionEnum));
sessions = new SessionCollection(sessionEnum);
audioSessionNotification = new AudioSessionNotification(this);
Marshal.ThrowExceptionForHR(audioSessionInterface2.RegisterSessionNotification(audioSessionNotification));
}
}
void InitializeAudioSessions()
{
if (_audioDataFlow == AudioDataFlow.eCapture)
{
return;
}
//Get Session manager
var result = _audioDevice.Activate(typeof(IAudioSessionManager2).GUID, ClsCtx.ALL, IntPtr.Zero, out object obj);
_audioSessionManager2 = (IAudioSessionManager2)obj;
//Register event for get session creation
sessionNotify = new AudioSessionNotification();
_audioSessionManager2.RegisterSessionNotification(sessionNotify);
InitializeAudioSessionDict();
}
public AudioDeviceSessionCollection(IAudioDevice parent, IMMDevice device, Dispatcher foregroundDispatcher)
{
_parent = new WeakReference <IAudioDevice>(parent);
_dispatcher = foregroundDispatcher;
try
{
_sessionManager = device.Activate <IAudioSessionManager2>();
_sessionManager.RegisterSessionNotification(this);
var enumerator = _sessionManager.GetSessionEnumerator();
int count = enumerator.GetCount();
for (int i = 0; i < count; i++)
{
CreateAndAddSession(enumerator.GetSession(i));
}
}
catch (Exception ex)
{
Trace.WriteLine($"AudioDeviceSessionCollection Create dev={device.GetId()} {ex}");
}
}
public CoreAudioSessionController(CoreAudioDevice device, IAudioSessionManager2 audioSessionManager)
{
if (audioSessionManager == null)
{
throw new ArgumentNullException(nameof(audioSessionManager));
}
ComThread.Assert();
_device = device;
_audioSessionManager = audioSessionManager;
_audioSessionManager.RegisterSessionNotification(this);
_sessionCache = new List <CoreAudioSession>(0);
_sessionCreated = new Broadcaster <IAudioSession>();
_sessionDisconnected = new Broadcaster <string>();
RefreshSessions();
_processTerminatedSubscription = ProcessMonitor.ProcessTerminated.Subscribe(processId =>
{
RemoveSessions(_sessionCache.Where(x => x.ProcessId == processId));
});
}
