Initial commit

MainWindow.xaml.cs

@@ -0,0 +1,69 @@
+using BeatDetector.AudioProcessing;
+
+using System;
+using System.Collections.ObjectModel;
+using System.ComponentModel;
+using System.Runtime.CompilerServices;
+using System.Windows;
+using System.Windows.Media;
+using System.Windows.Threading;
+
+namespace BeatDetector;
+
+/// <summary>
+/// Interaction logic for MainWindow.xaml
+/// </summary>
+public partial class MainWindow : Window
+{
+    public ObservableCollection<BeatLight> BeatLights { get; } = new ObservableCollection<BeatLight>();
+
+    public MainWindow()
+    {
+        DataContext = this;
+        InitializeComponent();
+
+        for (int i = 0; i < 4; i++)
+        {
+            BeatLights.Add(new BeatLight());
+        }
+
+        AudioBeatDetector audioBeatDetector = new AudioBeatDetector(new TimeSpan(0, 0, 0, 0, 100), 1024 * 2, BeatLights.Count);
+        audioBeatDetector.OnBeat += AudioBeatDetector_OnBeat;
+        audioBeatDetector.OnNoBeat += AudioBeatDetector_OnNoBeat;
+    }
+
+    private void AudioBeatDetector_OnBeat(object? sender, BeatDetectorEventArgs e)
+    {
+        Dispatcher.Invoke(() => BeatLights[e.ChunkIndex].Color = Brushes.Red);
+    }
+
+    private void AudioBeatDetector_OnNoBeat(object? sender, BeatDetectorEventArgs e)
+    {
+        Dispatcher.Invoke(() => BeatLights[e.ChunkIndex].Color = Brushes.White);
+    }
+}
+
+public class BeatLight : INotifyPropertyChanged
+{
+    public event PropertyChangedEventHandler? PropertyChanged;
+
+    private Brush color = Brushes.White;
+
+    public Brush Color
+    {
+        get => color;
+        set
+        {
+            if (value != color)
+            {
+                color = value;
+                NotifyPropertyChanged();
+            }
+        }
+    }
+
+    private void NotifyPropertyChanged([CallerMemberName] string propertyName = "")
+    {
+        PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(propertyName));
+    }
+}