Remove 24kHz Sample Rate

UI/Window/RenderConfigWindow.cs

@@ -8,6 +8,7 @@ using ADOFAIRenderer.Data;
 using ADOFAIRenderer.Localization;
 using ADOFAIRenderer.Util;
 using ADOFAIRenderer.Util.FFmpeg;
+using HarmonyLib;
 using MelonLoader;
 using O5Kit.Control;
 using O5Kit.Core;
@@ -307,12 +308,11 @@ internal static class RenderConfigWindow
             c => config.AudioConfig.AudioChannels = c
         );
 
-        var sampleRates = new[] { 44100, 48000, 96000 };
         _sampleRateDropdown = CreateDropdownField(
             ctx, CreateFieldSlot(audioRight),
             LocalizationManager.Get("ui.render_config.sample_rate"),
             48000, config.AudioConfig.AudioSampleRate,
-            sampleRates, r => $"{r/1000.0} kHz",
+            CodecUtil.AvailableSampleRate[CodecUtil.AudioCodecMatch[config.VideoConfig.Codec]], r => $"{r/1000.0} kHz", 
             "dd_sample_rate",
             r => config.AudioConfig.AudioSampleRate = r
         );
@@ -359,6 +359,7 @@ internal static class RenderConfigWindow
                     : _outputDirInput.Value;
                 FolderDialogUtil.OpenFolderBrowser(initial, selected =>
                 {
+                    Melon<RenderMod>.Logger.Msg("Output Directory Selected: " + selected);
                     if (!string.IsNullOrWhiteSpace(selected))
                     {
                         _outputDirInput.Set(selected);
@@ -436,6 +437,8 @@ internal static class RenderConfigWindow
             generateLabel: false
         );
         
+        // TODO: Fire Planet, Ice Planet, Wind Planet Color Settings (Each Optional)
+
         // 8. Go Render Button
         O5Factory.Button(
             ctx, scrollContent,

Util/FFmpeg/Codec.cs

@@ -23,8 +23,8 @@ namespace ADOFAIRenderer.Util.FFmpeg
 
         public static readonly Dictionary<AVCodecID, List<int>> AvailableSampleRate = new()
         {
-            [AVCodecID.AV_CODEC_ID_AAC] = new List<int> { 24000, 44100, 48000, 96000 },
+            [AVCodecID.AV_CODEC_ID_AAC] = new List<int> { 44100, 48000, 96000 },
-            [AVCodecID.AV_CODEC_ID_OPUS] = new List<int> { 24000, 48000 }
+            [AVCodecID.AV_CODEC_ID_OPUS] = new List<int> { 48000 }
         };
     }
 }

Util/FolderDialogUtil.cs

@@ -2,6 +2,7 @@ using System;
 using System.Diagnostics;
 using System.IO;
 using System.Runtime.InteropServices;
+using System.Text;
 using System.Threading;
 using System.Threading.Tasks;
 using MelonLoader;
@@ -10,20 +11,68 @@ namespace ADOFAIRenderer.Util;
 
 internal static class FolderDialogUtil
 {
+    private static int _isDialogOpen;
+
     public static void OpenFolderBrowser(string initialDirectory, Action<string?> onSelected)
     {
+        if (Interlocked.CompareExchange(ref _isDialogOpen, 1, 0) != 0)
+        {
+            MelonLogger.Msg("[FolderDialogUtil] Folder dialog is already open.");
+            return;
+        }
+
         var syncContext = SynchronizationContext.Current;
 
+        if (RuntimeInformation.IsOSPlatform(OSPlatform.Windows))
+        {
+            var ownerHandle = GetGameWindowHandle();
+
+            var thread = new Thread(() =>
+            {
+                string? selected = null;
+                int oleHr = -1;
+                try
+                {
+                    oleHr = OleInitialize(IntPtr.Zero);
+                    selected = OpenWindowsFolderBrowser(initialDirectory, ownerHandle);
+                }
+                catch (Exception ex)
+                {
+                    MelonLogger.Warning($"[FolderDialogUtil] Windows folder dialog error: {ex.Message}");
+                }
+                finally
+                {
+                    if (oleHr >= 0)
+                    {
+                        try
+                        {
+                            OleUninitialize();
+                        }
+                        catch
+                        {
+                            // Ignore uninitialize error
+                        }
+                    }
+                    Interlocked.Exchange(ref _isDialogOpen, 0);
+                }
+
+                DispatchResult(syncContext, onSelected, selected);
+            })
+            {
+                IsBackground = true,
+                Name = "FolderDialog-Win"
+            };
+            thread.SetApartmentState(ApartmentState.STA);
+            thread.Start();
+        }
+        else
+        {
             Task.Run(() =>
             {
                 string? selected = null;
                 try
                 {
-                if (RuntimeInformation.IsOSPlatform(OSPlatform.Windows))
+                    if (RuntimeInformation.IsOSPlatform(OSPlatform.OSX))
-                {
-                    selected = OpenWindowsFolderBrowser(initialDirectory);
-                }
-                else if (RuntimeInformation.IsOSPlatform(OSPlatform.OSX))
                     {
                         selected = OpenMacFolderBrowser(initialDirectory);
                     }
@@ -36,69 +85,431 @@ internal static class FolderDialogUtil
                 {
                     MelonLogger.Warning($"[FolderDialogUtil] Failed to open folder browser: {ex.Message}");
                 }
+                finally
+                {
+                    Interlocked.Exchange(ref _isDialogOpen, 0);
+                }
 
-            if (syncContext != null)
+                DispatchResult(syncContext, onSelected, selected);
-            {
-                syncContext.Post(_ => onSelected(selected), null);
-            }
-            else
-            {
-                onSelected(selected);
-            }
             });
         }
+    }
 
-    private static string? OpenWindowsFolderBrowser(string initialDirectory)
+    private static void DispatchResult(SynchronizationContext? syncContext, Action<string?> onSelected, string? selected)
+    {
+        if (syncContext != null)
+        {
+            syncContext.Post(_ =>
             {
                 try
                 {
-            var escapedDir = initialDirectory.Replace("'", "''");
+                    onSelected(selected);
-            var script = $@"
-[System.Reflection.Assembly]::LoadWithPartialName('System.Windows.Forms') | Out-Null
-$f = New-Object System.Windows.Forms.FolderBrowserDialog
-$f.Description = 'Select Output Directory'
-if ([System.IO.Directory]::Exists('{escapedDir}')) {{
-    $f.SelectedPath = '{escapedDir}'
-}}
-$f.ShowNewFolderButton = $true
-if ($f.ShowDialog() -eq [System.Windows.Forms.DialogResult]::OK) {{
-    [Console]::Write($f.SelectedPath)
-}}";
-
-            var bytes = System.Text.Encoding.Unicode.GetBytes(script);
-            var base64 = Convert.ToBase64String(bytes);
-
-            var startInfo = new ProcessStartInfo
-            {
-                FileName = "powershell.exe",
-                Arguments = $"-NoProfile -NonInteractive -ExecutionPolicy Bypass -EncodedCommand {base64}",
-                CreateNoWindow = true,
-                UseShellExecute = false,
-                RedirectStandardOutput = true,
-                WindowStyle = ProcessWindowStyle.Hidden
-            };
-
-            using var process = Process.Start(startInfo);
-            if (process == null) return null;
-
-            var output = process.StandardOutput.ReadToEnd().Trim();
-            process.WaitForExit();
-
-            return !string.IsNullOrEmpty(output) && Directory.Exists(output) ? output : null;
                 }
                 catch (Exception ex)
                 {
-            MelonLogger.Warning($"[FolderDialogUtil] Windows folder dialog error: {ex.Message}");
+                    MelonLogger.Warning($"[FolderDialogUtil] Error in folder selected callback: {ex.Message}");
+                }
+            }, null);
+        }
+        else
+        {
+            try
+            {
+                onSelected(selected);
+            }
+            catch (Exception ex)
+            {
+                MelonLogger.Warning($"[FolderDialogUtil] Error in folder selected callback: {ex.Message}");
+            }
+        }
+    }
+
+    #region Windows Implementation
+
+    private static readonly Guid CLSID_FileOpenDialog = new("DC1C5A9C-E88A-4DDE-A5A1-60F82A20AEF7");
+    private static readonly Guid IID_IFileOpenDialog = new("d57c7288-d4ad-4768-be02-9d969532d960");
+    private static readonly Guid IID_IShellItem = new("43826D1E-E718-42EE-BC55-A1E261C37BFE");
+    private const int ERROR_CANCELLED_HR = unchecked((int)0x800704C7);
+
+    [DllImport("user32.dll")]
+    private static extern IntPtr GetActiveWindow();
+
+    [DllImport("user32.dll")]
+    private static extern IntPtr GetForegroundWindow();
+
+    [DllImport("user32.dll")]
+    private static extern uint GetWindowThreadProcessId(IntPtr hWnd, out uint lpdwProcessId);
+
+    private static IntPtr GetGameWindowHandle()
+    {
+        try
+        {
+            var active = GetActiveWindow();
+            if (active != IntPtr.Zero) return active;
+
+            var currentPid = (uint)Process.GetCurrentProcess().Id;
+            var fg = GetForegroundWindow();
+            if (fg != IntPtr.Zero)
+            {
+                GetWindowThreadProcessId(fg, out var fgPid);
+                if (fgPid == currentPid)
+                {
+                    return fg;
+                }
+            }
+
+            var mainHandle = Process.GetCurrentProcess().MainWindowHandle;
+            if (mainHandle != IntPtr.Zero)
+            {
+                return mainHandle;
+            }
+        }
+        catch
+        {
+            // Ignore failure to detect window handle
+        }
+
+        return IntPtr.Zero;
+    }
+
+    private static string? OpenWindowsFolderBrowser(string initialDirectory, IntPtr ownerHandle)
+    {
+        try
+        {
+            return OpenWindowsFolderBrowserModern(initialDirectory, ownerHandle);
+        }
+        catch (Exception ex)
+        {
+            MelonLogger.Warning($"[FolderDialogUtil] Modern folder dialog failed ({ex.Message}), falling back to legacy dialog.");
+            return OpenWindowsFolderBrowserLegacy(initialDirectory, ownerHandle);
+        }
+    }
+
+    private static string? OpenWindowsFolderBrowserModern(string initialDirectory, IntPtr ownerHandle)
+    {
+        IFileOpenDialog? dialog = null;
+
+        // 1. Try native CoCreateInstance first (works on Mono and .NET without class registration)
+        var clsid = CLSID_FileOpenDialog;
+        var iid = IID_IFileOpenDialog;
+        int createHr = CoCreateInstance(ref clsid, IntPtr.Zero, 1 /* CLSCTX_INPROC_SERVER */, ref iid, out dialog);
+
+        if (createHr != 0 || dialog == null)
+        {
+            // 2. Fallback to Activator via Type.GetTypeFromCLSID
+            var comType = Type.GetTypeFromCLSID(CLSID_FileOpenDialog);
+            if (comType != null)
+            {
+                var instance = Activator.CreateInstance(comType);
+                dialog = instance as IFileOpenDialog;
+            }
+        }
+
+        if (dialog == null)
+        {
+            throw new COMException("Failed to instantiate IFileOpenDialog via COM.", createHr);
+        }
+
+        try
+        {
+            dialog.SetOptions(FOS.FOS_PICKFOLDERS | FOS.FOS_FORCEFILESYSTEM | FOS.FOS_PATHMUSTEXIST);
+            dialog.SetTitle("Select Output Directory");
+
+            if (!string.IsNullOrWhiteSpace(initialDirectory))
+            {
+                try
+                {
+                    var normalized = Path.GetFullPath(initialDirectory).TrimEnd('\\', '/');
+                    if (Directory.Exists(normalized))
+                    {
+                        var shellItemGuid = IID_IShellItem;
+                        int itemHr = SHCreateItemFromParsingName(normalized, IntPtr.Zero, ref shellItemGuid, out var initialItem);
+                        if (itemHr == 0 && initialItem != null)
+                        {
+                            try
+                            {
+                                dialog.SetFolder(initialItem);
+                                dialog.SetDefaultFolder(initialItem);
+                            }
+                            finally
+                            {
+                                Marshal.ReleaseComObject(initialItem);
+                            }
+                        }
+                    }
+                }
+                catch
+                {
+                    // Ignore failure to set initial folder
+                }
+            }
+
+            int hr = dialog.Show(ownerHandle);
+            if (hr != 0 && hr != ERROR_CANCELLED_HR && ownerHandle != IntPtr.Zero)
+            {
+                // If Show failed with ownerHandle (e.g. cross-thread or invalid handle), retry without owner
+                MelonLogger.Msg($"[FolderDialogUtil] dialog.Show(ownerHandle) returned 0x{hr:X8}, retrying with IntPtr.Zero.");
+                hr = dialog.Show(IntPtr.Zero);
+            }
+
+            if (hr == ERROR_CANCELLED_HR)
+            {
                 return null;
             }
+
+            if (hr != 0)
+            {
+                throw new COMException("IFileOpenDialog.Show failed", hr);
             }
 
+            dialog.GetResult(out var resultItem);
+            if (resultItem == null) return null;
+
+            try
+            {
+                if (resultItem.GetDisplayName(SIGDN.SIGDN_FILESYSPATH, out var pszPath) == 0 && pszPath != IntPtr.Zero)
+                {
+                    try
+                    {
+                        var path = Marshal.PtrToStringUni(pszPath);
+                        return !string.IsNullOrEmpty(path) && Directory.Exists(path) ? path : null;
+                    }
+                    finally
+                    {
+                        Marshal.FreeCoTaskMem(pszPath);
+                    }
+                }
+            }
+            finally
+            {
+                Marshal.ReleaseComObject(resultItem);
+            }
+
+            return null;
+        }
+        finally
+        {
+            Marshal.ReleaseComObject(dialog);
+        }
+    }
+
+    private static string? OpenWindowsFolderBrowserLegacy(string initialDirectory, IntPtr ownerHandle)
+    {
+        IntPtr pszDisplayName = Marshal.AllocHGlobal(260 * sizeof(char));
+        IntPtr initialDirPtr = IntPtr.Zero;
+        BrowseCallbackProc? callback = null;
+        IntPtr pidl = IntPtr.Zero;
+
+        try
+        {
+            var bi = new BROWSEINFO
+            {
+                hwndOwner = ownerHandle,
+                pidlRoot = IntPtr.Zero,
+                pszDisplayName = pszDisplayName,
+                lpszTitle = "Select Output Directory",
+                ulFlags = BIF_RETURNONLYFSDIRS | BIF_NEWDIALOGSTYLE | BIF_EDITBOX
+            };
+
+            if (!string.IsNullOrWhiteSpace(initialDirectory))
+            {
+                try
+                {
+                    var normalized = Path.GetFullPath(initialDirectory).TrimEnd('\\', '/');
+                    if (Directory.Exists(normalized))
+                    {
+                        initialDirPtr = Marshal.StringToHGlobalUni(normalized);
+                        callback = (hwnd, uMsg, lParam, lpData) =>
+                        {
+                            if (uMsg == BFFM_INITIALIZED && lpData != IntPtr.Zero)
+                            {
+                                SendMessage(hwnd, BFFM_SETSELECTIONW, (IntPtr)1, lpData);
+                            }
+                            return 0;
+                        };
+                        bi.lpfn = callback;
+                        bi.lParam = initialDirPtr;
+                    }
+                }
+                catch
+                {
+                    // Ignore failure to prepare initial directory
+                }
+            }
+
+            pidl = SHBrowseForFolderW(ref bi);
+            if (pidl == IntPtr.Zero && ownerHandle != IntPtr.Zero)
+            {
+                // If it returned null with ownerHandle, check if retry with IntPtr.Zero is appropriate
+                // But note: cancelling also returns Zero. We do not redundantly re-prompt if cancelled.
+            }
+
+            if (pidl != IntPtr.Zero)
+            {
+                var sb = new StringBuilder(260);
+                if (SHGetPathFromIDListW(pidl, sb))
+                {
+                    var path = sb.ToString();
+                    return !string.IsNullOrEmpty(path) && Directory.Exists(path) ? path : null;
+                }
+            }
+
+            return null;
+        }
+        finally
+        {
+            if (pidl != IntPtr.Zero)
+            {
+                Marshal.FreeCoTaskMem(pidl);
+            }
+            if (initialDirPtr != IntPtr.Zero)
+            {
+                Marshal.FreeHGlobal(initialDirPtr);
+            }
+            if (pszDisplayName != IntPtr.Zero)
+            {
+                Marshal.FreeHGlobal(pszDisplayName);
+            }
+            GC.KeepAlive(callback);
+        }
+    }
+
+    #region COM & Win32 Interop Definitions
+
+    [Flags]
+    private enum FOS : uint
+    {
+        FOS_NOCHANGEDIR = 0x00000008,
+        FOS_PICKFOLDERS = 0x00000020,
+        FOS_FORCEFILESYSTEM = 0x00000040,
+        FOS_PATHMUSTEXIST = 0x00000800,
+        FOS_FILEMUSTEXIST = 0x00001000,
+    }
+
+    private enum SIGDN : uint
+    {
+        SIGDN_FILESYSPATH = 0x80058000
+    }
+
+    [ComImport]
+    [Guid("43826D1E-E718-42EE-BC55-A1E261C37BFE")]
+    [InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
+    private interface IShellItem
+    {
+        void BindToHandler(IntPtr pbc, [In] ref Guid bhid, [In] ref Guid riid, out IntPtr ppv);
+        void GetParent(out IShellItem ppsi);
+        [PreserveSig]
+        int GetDisplayName(SIGDN sigdnName, out IntPtr ppszName);
+        void GetAttributes(uint sfgaoMask, out uint psfgaoAttribs);
+        void Compare(IShellItem psi, uint hint, out int piOrder);
+    }
+
+    [ComImport]
+    [Guid("d57c7288-d4ad-4768-be02-9d969532d960")]
+    [InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
+    private interface IFileOpenDialog
+    {
+        [PreserveSig]
+        int Show(IntPtr parent);
+        void SetFileTypes(uint cFileTypes, IntPtr rgFilterSpec);
+        void SetFileTypeIndex(uint iFileType);
+        void GetFileTypeIndex(out uint piFileType);
+        void Advise(IntPtr pfde, out uint pdwCookie);
+        void Unadvise(uint dwCookie);
+        void SetOptions(FOS fos);
+        void GetOptions(out FOS pfos);
+        void SetDefaultFolder(IShellItem psi);
+        void SetFolder(IShellItem psi);
+        void GetFolder(out IShellItem ppsi);
+        void GetCurrentSelection(out IShellItem ppsi);
+        void SetFileName([MarshalAs(UnmanagedType.LPWStr)] string pszName);
+        void GetFileName([MarshalAs(UnmanagedType.LPWStr)] out string pszName);
+        void SetTitle([MarshalAs(UnmanagedType.LPWStr)] string pszTitle);
+        void SetOkButtonLabel([MarshalAs(UnmanagedType.LPWStr)] string pszText);
+        void SetFileNameLabel([MarshalAs(UnmanagedType.LPWStr)] string pszLabel);
+        void GetResult(out IShellItem ppsi);
+        void AddPlace(IShellItem psi, int fdap);
+        void SetDefaultExtension([MarshalAs(UnmanagedType.LPWStr)] string pszDefaultExtension);
+        void Close(int hr);
+        void SetClientGuid(ref Guid guid);
+        void ClearClientData();
+        void SetFilter(IntPtr pFilter);
+        void GetResults(out IntPtr ppenum);
+        void GetSelectedItems(out IntPtr ppsai);
+    }
+
+    [DllImport("ole32.dll", ExactSpelling = true)]
+    private static extern int OleInitialize(IntPtr pvReserved);
+
+    [DllImport("ole32.dll", ExactSpelling = true)]
+    private static extern void OleUninitialize();
+
+    [DllImport("ole32.dll", ExactSpelling = true)]
+    private static extern int CoCreateInstance(
+        [In] ref Guid rclsid,
+        IntPtr pUnkOuter,
+        uint dwClsContext,
+        [In] ref Guid riid,
+        [Out, MarshalAs(UnmanagedType.Interface)] out IFileOpenDialog ppv);
+
+    [DllImport("shell32.dll", CharSet = CharSet.Unicode, PreserveSig = true)]
+    private static extern int SHCreateItemFromParsingName(
+        [MarshalAs(UnmanagedType.LPWStr)] string pszPath,
+        IntPtr pbc,
+        [In] ref Guid riid,
+        [Out, MarshalAs(UnmanagedType.Interface)] out IShellItem ppv);
+
+    private const uint BIF_RETURNONLYFSDIRS = 0x0001;
+    private const uint BIF_NEWDIALOGSTYLE = 0x0040;
+    private const uint BIF_EDITBOX = 0x0010;
+    private const uint BFFM_INITIALIZED = 1;
+    private const uint BFFM_SETSELECTIONW = 0x0400 + 103;
+
+    private delegate int BrowseCallbackProc(IntPtr hwnd, uint uMsg, IntPtr lParam, IntPtr lpData);
+
+    [StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
+    private struct BROWSEINFO
+    {
+        public IntPtr hwndOwner;
+        public IntPtr pidlRoot;
+        public IntPtr pszDisplayName;
+        public string lpszTitle;
+        public uint ulFlags;
+        public BrowseCallbackProc? lpfn;
+        public IntPtr lParam;
+        public int iImage;
+    }
+
+    [DllImport("shell32.dll", CharSet = CharSet.Unicode)]
+    private static extern IntPtr SHBrowseForFolderW(ref BROWSEINFO lpbi);
+
+    [DllImport("shell32.dll", CharSet = CharSet.Unicode)]
+    [return: MarshalAs(UnmanagedType.Bool)]
+    private static extern bool SHGetPathFromIDListW(IntPtr pidl, StringBuilder pszPath);
+
+    [DllImport("user32.dll", CharSet = CharSet.Unicode)]
+    private static extern IntPtr SendMessage(IntPtr hWnd, uint Msg, IntPtr wParam, IntPtr lParam);
+
+    #endregion
+
+    #endregion
+
+    #region macOS Implementation
+
     private static string? OpenMacFolderBrowser(string initialDirectory)
     {
         try
         {
-            var escaped = initialDirectory.Replace("\"", "\\\"");
+            string script;
-            var script = $"POSIX path of (choose folder with prompt \"Select Output Directory\" default location \"{escaped}\")";
+            if (!string.IsNullOrEmpty(initialDirectory) && Directory.Exists(initialDirectory))
+            {
+                var escaped = initialDirectory.Replace("\\", "\\\\").Replace("\"", "\\\"");
+                script = $"POSIX path of (choose folder with prompt \"Select Output Directory\" default location (POSIX file \"{escaped}\"))";
+            }
+            else
+            {
+                script = "POSIX path of (choose folder with prompt \"Select Output Directory\")";
+            }
 
             var startInfo = new ProcessStartInfo
             {
@@ -119,12 +530,17 @@ if ($f.ShowDialog() -eq [System.Windows.Forms.DialogResult]::OK) {{
 
             return !string.IsNullOrEmpty(output) && Directory.Exists(output) ? output : null;
         }
-        catch
+        catch (Exception ex)
         {
+            MelonLogger.Warning($"[FolderDialogUtil] Mac folder dialog error: {ex.Message}");
             return null;
         }
     }
 
+    #endregion
+
+    #region Linux Implementation
+
     private static string? OpenLinuxFolderBrowser(string initialDirectory)
     {
         try
@@ -145,17 +561,55 @@ if ($f.ShowDialog() -eq [System.Windows.Forms.DialogResult]::OK) {{
                 startInfo.ArgumentList.Add($"--filename={initialDirectory}");
             }
 
+            try
+            {
                 using var process = Process.Start(startInfo);
-            if (process == null) return null;
+                if (process != null)
-
+                {
                     var output = process.StandardOutput.ReadToEnd().Trim();
                     process.WaitForExit();
 
-            return !string.IsNullOrEmpty(output) && Directory.Exists(output) ? output : null;
+                    if (process.ExitCode == 0 && !string.IsNullOrEmpty(output) && Directory.Exists(output))
+                    {
+                        return output;
+                    }
+                }
             }
             catch
             {
+                // Fallback to kdialog if zenity fails to start
+            }
+
+            var kdialogInfo = new ProcessStartInfo
+            {
+                FileName = "kdialog",
+                CreateNoWindow = true,
+                UseShellExecute = false,
+                RedirectStandardOutput = true,
+                WindowStyle = ProcessWindowStyle.Hidden
+            };
+            kdialogInfo.ArgumentList.Add("--getexistingdirectory");
+            if (!string.IsNullOrEmpty(initialDirectory) && Directory.Exists(initialDirectory))
+            {
+                kdialogInfo.ArgumentList.Add(initialDirectory);
+            }
+            kdialogInfo.ArgumentList.Add("--title");
+            kdialogInfo.ArgumentList.Add("Select Output Directory");
+
+            using var kdialogProcess = Process.Start(kdialogInfo);
+            if (kdialogProcess == null) return null;
+
+            var koutput = kdialogProcess.StandardOutput.ReadToEnd().Trim();
+            kdialogProcess.WaitForExit();
+
+            return !string.IsNullOrEmpty(koutput) && Directory.Exists(koutput) ? koutput : null;
+        }
+        catch (Exception ex)
+        {
+            MelonLogger.Warning($"[FolderDialogUtil] Linux folder dialog error: {ex.Message}");
             return null;
         }
     }
+
+    #endregion
 }