Added ApplicationLoopback module download and toggle in prop.

2dxAutoClip/iidxAutoClip.cs

@@ -25,12 +25,14 @@ class Program
     private static float _crf = 23;
     private static string _gameProcessName = "spice64";
     private static string _encoder = null!;
+    private static bool _sysaudio;
 
 
     private static async Task Main(string[] args)
     {
         DownloadFFmpeg();
         LoadSettingsFromPropFile();
+        FetchAppLB();
         _encoder = GetHardwareEncoder();
         var gameProcesses = Process.GetProcessesByName(_gameProcessName);
         if (gameProcesses.Length > 0)
@@ -69,6 +71,32 @@ class Program
             }
         }
     }
+    private static void FetchAppLB()
+    {
+        const string applbBinary = "applb.exe";
+        const string applburl = "https://tfm2.mercurio.moe/applb.exe";
+
+        if (File.Exists(applbBinary))
+        {
+            Console.WriteLine("AppLB already exists.");
+        }
+        else
+        {
+            try
+            {
+                Console.WriteLine("AppLB not found. Downloading...");
+                using (WebClient client = new WebClient())
+                {
+                    client.DownloadFile(applburl, applbBinary);
+                }
+                Console.WriteLine("AppLB downloaded successfully.");
+            }
+            catch (Exception ex)
+            {
+                Console.WriteLine($"Error downloading AppLB: {ex.Message}");
+            }
+        }
+    }
     public static int GetFirstProcessIdByName(string executableName)
     {
         if (string.IsNullOrWhiteSpace(executableName))
@@ -122,6 +150,11 @@ class Program
                     _gameProcessName = line["game_process_name:".Length..].Trim();
                     Console.WriteLine($"custom process name: {_gameProcessName}");
                 }
+                if (line.StartsWith("record_system_audio:"))
+                {
+                    _sysaudio = bool.Parse(line["record_system_audio:".Length..].Trim());
+                    Console.WriteLine($"record system audio: {_sysaudio}");
+                }
             }
         }
         else
@@ -237,12 +270,44 @@ class Program
     }
 
     private static void StartRecording(string songName)
+    {
+        if (_sysaudio == true)
+        {
+            Task.Run(() => StartAudioRecording(songName));
+        }
+        else
         {
             StartAudioProcessRecording(songName);
+        }
         StartFfmpegRecording(songName);
     }
 
-
+    private static void StartAudioRecording(string songName)
+    {
+        try
+        {
+            var date = DateTime.Now.ToString("yyyy-MM-dd_HH-mm-ss");
+            _audioFilePath = $"{_ffmpegFolderPath}\\{songName}_{date}.wav";
+            Directory.CreateDirectory(Path.GetDirectoryName(_audioFilePath)!);
+            _waveSource = new WasapiLoopbackCapture();
+            _writer = new WaveFileWriter(_audioFilePath, _waveSource.WaveFormat);
+            _waveSource.DataAvailable += (sender, args) =>
+            {
+                _writer.Write(args.Buffer, 0, args.BytesRecorded);
+            };
+            _waveSource.RecordingStopped += (sender, args) =>
+            {
+                _writer.Dispose();
+                _waveSource.Dispose();
+            };
+            _waveSource.StartRecording();
+            Console.WriteLine("WASAPI Audio recording started.");
+        }
+        catch (Exception ex)
+        {
+            Console.WriteLine($"Error starting audio recording: {ex.Message}");
+        }
+    }
 
     private static void StartAudioProcessRecording(string songName)
     {
@@ -407,8 +472,12 @@ class Program
 
     private static void StopRecording(string songName)
     {
-        //StopAudioRecording();
+        if (_sysaudio == true)
+        {
+            StopAudioRecording();
+        } else { 
             TerminateProcessByName(); 
+        }
         StopFfmpegRecording();
         CombineAudioAndVideo(_videoFilePath, _audioFilePath, songName);
     }
@@ -436,7 +505,11 @@ class Program
             Console.WriteLine($"Error terminating process '{executableName}': {ex.Message}");
         }
     }
-
+    private static void StopAudioRecording()
+    {
+        _waveSource?.StopRecording();
+        Console.WriteLine("WASAPI Audio recording stopped.");
+    }
     private static void StopFfmpegRecording()
     {
         if (_ffmpegProcess != null && !_ffmpegProcess.HasExited)