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Handle multiple microphones/sessions better

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This commit is contained in:
Chris Kaczor
2021-04-28 11:54:36 -04:00
parent e1ca9f67ac
commit c284b92e16
1 changed files with 24 additions and 25 deletions
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49
AudioWatcher.cs
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@@ -1,6 +1,7 @@
using CSCore.CoreAudioAPI;
using System;
using System.Diagnostics;
using System.Collections.Generic;
using System.Linq;
using System.Threading;
namespace WorkIndicator
@@ -11,7 +12,7 @@ namespace WorkIndicator
private static ManualResetEvent _manualResetEvent;
private static int _activeSessionCount;
private static readonly Dictionary<string, int> ActiveSessions = new Dictionary<string, int>();
public static event MicrophoneInUseChangedDelegate MicrophoneInUseChanged;
@@ -29,13 +30,11 @@ namespace WorkIndicator
var sessionEnumerator = sessionManager.GetSessionEnumerator();
sessionManager.SessionCreated += HandleAudioSessionCreated;
sessionManager.SessionCreated += (sessionSender, sessionCreatedEventArgs) => HandleDeviceSession(device, sessionCreatedEventArgs.NewSession);
foreach (var audioSessionControl in sessionEnumerator)
{
HandleAudioStateChanged(audioSessionControl, new AudioSessionStateChangedEventArgs(audioSessionControl.SessionState));
audioSessionControl.StateChanged += HandleAudioStateChanged;
HandleDeviceSession(device, audioSessionControl);
}
}
@@ -46,29 +45,34 @@ namespace WorkIndicator
thread.Start();
}
private static void HandleDeviceSession(MMDevice device, AudioSessionControl audioSessionControl)
{
var deviceId = device.DeviceID + audioSessionControl.GroupingParam;
if (!ActiveSessions.ContainsKey(deviceId))
ActiveSessions[deviceId] = 0;
HandleAudioStateChanged(deviceId, audioSessionControl.SessionState);
audioSessionControl.StateChanged += (sender, sessionStateChangedEventArgs) =>
HandleAudioStateChanged(deviceId, sessionStateChangedEventArgs.NewState);
}
public static void Stop()
{
_manualResetEvent?.Set();
}
private static void HandleAudioSessionCreated(object sender, SessionCreatedEventArgs e)
private static void HandleAudioStateChanged(string deviceId, AudioSessionState newState)
{
HandleAudioStateChanged(null, new AudioSessionStateChangedEventArgs(e.NewSession.SessionState));
e.NewSession.StateChanged += HandleAudioStateChanged;
}
private static void HandleAudioStateChanged(object sender, AudioSessionStateChangedEventArgs e)
{
Debug.WriteLine($"{e.NewState}");
switch (e.NewState)
switch (newState)
{
case AudioSessionState.AudioSessionStateActive:
_activeSessionCount++;
ActiveSessions[deviceId]++;
break;
case AudioSessionState.AudioSessionStateInactive:
_activeSessionCount--;
if (ActiveSessions[deviceId] > 0)
ActiveSessions[deviceId]--;
break;
case AudioSessionState.AudioSessionStateExpired:
break;
@@ -76,17 +80,12 @@ namespace WorkIndicator
throw new ArgumentOutOfRangeException();
}
if (_activeSessionCount < 0)
_activeSessionCount = 0;
Debug.WriteLine($"{_activeSessionCount}");
MicrophoneInUseChanged?.Invoke(MicrophoneInUse());
}
public static bool MicrophoneInUse()
{
return _activeSessionCount > 0;
return ActiveSessions.Any(a => a.Value > 0);
}
}
}