Convert extension method to extension property

src/MpvNet.Windows/GuiCommand.cs

@@ -303,20 +303,20 @@ public class GuiCommand
 
         if (File.Exists(path) && osd)
         {
-            if (FileTypes.IsAudio(path.Ext()))
+            if (FileTypes.IsAudio(path.Ext))
             {
                 text = Player.GetPropertyOsdString("filtered-metadata");
                 Player.CommandV("show-text", text, "5000");
                 return;
             }
-            else if (FileTypes.IsImage(path.Ext()))
+            else if (FileTypes.IsImage(path.Ext))
             {
                 fileSize = new FileInfo(path).Length;
 
                 text = "Width: " + Player.GetPropertyInt("width") + "\n" +
                        "Height: " + Player.GetPropertyInt("height") + "\n" +
                        "Size: " + Convert.ToInt32(fileSize / 1024.0) + " KB\n" +
-                       "Type: " + path.Ext().ToUpper();
+                       "Type: " + path.Ext.ToUpper();
 
                 Player.CommandV("show-text", text, "5000");
                 return;

src/MpvNet.Windows/WinForms/MainForm.cs

@@ -556,12 +556,12 @@ public partial class MainForm : Form
         if (App.AutofitImage > 1)
             App.AutofitImage = 1;
 
-        bool isAudio = FileTypes.IsAudio(Player.Path.Ext());
+        bool isAudio = FileTypes.IsAudio(Player.Path.Ext);
         
         if (isAudio)
             autoFitHeight = Convert.ToInt32(workingArea.Height * App.AutofitAudio);
 
-        if (FileTypes.IsImage(Player.Path.Ext()))
+        if (FileTypes.IsImage(Player.Path.Ext))
             autoFitHeight = Convert.ToInt32(workingArea.Height * App.AutofitImage);
 
         if (Player.VideoSize.Height == 0 || Player.VideoSize.Width == 0)

src/MpvNet/ExtensionMethod/PathStringExtensions.cs

@@ -1,27 +1,30 @@
 
 namespace MpvNet.ExtensionMethod;
 
-public static class PathStringExtension
+public static class PathStringExtensions
 {
-    public static string Ext(this string filepath) => filepath.Ext(false);
-
-    public static string Ext(this string filepath, bool includeDot)
+    extension(string filepath)
     {
-        if (string.IsNullOrEmpty(filepath))
-            return "";
+        public string Ext => GetExt(filepath, false);
 
-        char[] chars = filepath.ToCharArray();
-
-        for (int x = filepath.Length - 1; x >= 0; x--)
+        static string GetExt(string path, bool includeDot)
         {
-            if (chars[x] == Path.DirectorySeparatorChar)
+            if (string.IsNullOrEmpty(path))
                 return "";
 
-            if (chars[x] == '.')
-                return filepath.Substring(x + (includeDot ? 0 : 1)).ToLowerInvariant();
-        }
+            char[] chars = path.ToCharArray();
 
-        return "";
+            for (int x = path.Length - 1; x >= 0; x--)
+            {
+                if (chars[x] == Path.DirectorySeparatorChar)
+                    return "";
+
+                if (chars[x] == '.')
+                    return path[(x + (includeDot ? 0 : 1))..].ToLowerInvariant();
+            }
+
+            return "";
+        }
     }
 
     public static string FileName(this string instance)

src/MpvNet/FileTypes.cs

@@ -49,5 +49,5 @@ public static class FileTypes
         IsVideo(exts, ext) || IsAudio(exts, ext) || IsImage(exts, ext);
 
     public static IEnumerable<string> GetMediaFiles(string[] files) =>
-        files.Where(i => IsMedia(files, i.Ext()));
+        files.Where(i => IsMedia(files, i.Ext));
 }

src/MpvNet/Player.cs

@@ -441,7 +441,7 @@ public class MainPlayer : MpvClient
 
             file = ConvertFilePath(file);
 
-            string ext = file.Ext();
+            string ext = file.Ext;
 
             if (OperatingSystem.IsWindows())
             {