Add logging and track mute state

AudioDevice.cs

@@ -4,17 +4,17 @@ using Serilog;
 using System;
 using System.Collections.Generic;
 using System.Linq;
-using System.Windows.Threading;
 
 namespace WorkIndicator;
 
 internal class AudioDevice : IAudioSessionEventsHandler
 {
     private readonly ILogger _logger;
-    private readonly MMDevice _device;
+    private readonly string _friendlyName;
-    private readonly Dispatcher _dispatcher;
     private readonly Dictionary<string, AudioSessionControl> _sessions = new();
 
+    private bool _muted;
+
     public delegate void AudioSessionsChangedDelegate();
 
     public event AudioSessionsChangedDelegate AudioSessionsChanged;
@@ -23,15 +23,17 @@ internal class AudioDevice : IAudioSessionEventsHandler
     {
         _logger = Log.ForContext<AudioDevice>();
 
-        _dispatcher = Dispatcher.CurrentDispatcher;
+        _friendlyName = device.DeviceFriendlyName;
+        _muted = device.AudioEndpointVolume.Mute;
 
-        _device = device;
+        _logger.Information("AudioDevice: {name} {muted}", _friendlyName, _muted);
 
-        _device.AudioSessionManager.AudioSessionControl.RegisterEventClient(this);
+        device.AudioEndpointVolume.OnVolumeNotification += AudioEndpointVolume_OnVolumeNotification;
-        _device.AudioSessionManager.OnSessionCreated += AudioSessionManager_OnSessionCreated;
+        device.AudioSessionManager.AudioSessionControl.RegisterEventClient(this);
+        device.AudioSessionManager.OnSessionCreated += AudioSessionManager_OnSessionCreated;
 
-        _device.AudioSessionManager.RefreshSessions();
+        device.AudioSessionManager.RefreshSessions();
-        var sessions = _device.AudioSessionManager.Sessions;
+        var sessions = device.AudioSessionManager.Sessions;
 
         for (var i = 0; i < sessions.Count; i++)
         {
@@ -39,6 +41,13 @@ internal class AudioDevice : IAudioSessionEventsHandler
         }
     }
 
+    private void AudioEndpointVolume_OnVolumeNotification(AudioVolumeNotificationData data)
+    {
+        _logger.Information("AudioEndpointVolume_OnVolumeNotification: {name} {muted}", _friendlyName, data.Muted);
+
+        _muted = data.Muted;
+    }
+
     private void AudioSessionManager_OnSessionCreated(object sender, IAudioSessionControl newSession)
     {
         var session = new AudioSessionControl(newSession);
@@ -62,7 +71,7 @@ internal class AudioDevice : IAudioSessionEventsHandler
 
     void IAudioSessionEventsHandler.OnVolumeChanged(float volume, bool isMuted)
     {
-        _dispatcher.Invoke(() => { _logger.Information("{name}: {volume} {isMuted} {mute}", _device.DeviceFriendlyName, volume, isMuted, _device.AudioEndpointVolume.Mute); });
+        _logger.Information("OnVolumeChanged: {name} {volume} {isMuted}", _friendlyName, volume, isMuted);
     }
 
     void IAudioSessionEventsHandler.OnDisplayNameChanged(string displayName)