Simplify file extension checks in lyrics parsers and provider

MediaBrowser.Providers/Lyric/DefaultLyricProvider.cs

@@ -10,7 +10,7 @@ namespace MediaBrowser.Providers.Lyric;
 /// <inheritdoc />
 public class DefaultLyricProvider : ILyricProvider
 {
-    private static readonly string[] _lyricExtensions = { "lrc", "elrc", "txt", "elrc" };
+    private static readonly string[] _lyricExtensions = { ".lrc", ".elrc", ".txt" };
 
     /// <inheritdoc />
     public string Name => "DefaultLyricProvider";
@@ -55,7 +55,7 @@ public class DefaultLyricProvider : ILyricProvider
 
         foreach (var lyricFilePath in Directory.GetFiles(itemDirectoryPath, $"{Path.GetFileNameWithoutExtension(item.Path)}.*"))
         {
-            if (_lyricExtensions.Contains(Path.GetExtension(lyricFilePath.AsSpan())[1..], StringComparison.OrdinalIgnoreCase))
+            if (_lyricExtensions.Contains(Path.GetExtension(lyricFilePath.AsSpan()), StringComparison.OrdinalIgnoreCase))
             {
                 return lyricFilePath;
             }

MediaBrowser.Providers/Lyric/LrcLyricParser.cs

@@ -18,7 +18,7 @@ public class LrcLyricParser : ILyricParser
 {
     private readonly LyricParser _lrcLyricParser;
 
-    private static readonly string[] _supportedMediaTypes = { "lrc", "elrc" };
+    private static readonly string[] _supportedMediaTypes = { ".lrc", ".elrc" };
     private static readonly string[] _acceptedTimeFormats = { "HH:mm:ss", "H:mm:ss", "mm:ss", "m:ss" };
 
     /// <summary>
@@ -41,7 +41,7 @@ public class LrcLyricParser : ILyricParser
     /// <inheritdoc />
     public LyricResponse? ParseLyrics(LyricFile lyrics)
     {
-        if (!_supportedMediaTypes.Contains(Path.GetExtension(lyrics.Name.AsSpan())[1..], StringComparison.OrdinalIgnoreCase))
+        if (!_supportedMediaTypes.Contains(Path.GetExtension(lyrics.Name.AsSpan()), StringComparison.OrdinalIgnoreCase))
         {
             return null;
         }

MediaBrowser.Providers/Lyric/TxtLyricParser.cs

@@ -11,7 +11,7 @@ namespace MediaBrowser.Providers.Lyric;
 /// </summary>
 public class TxtLyricParser : ILyricParser
 {
-    private static readonly string[] _supportedMediaTypes = { "lrc", "elrc", "txt" };
+    private static readonly string[] _supportedMediaTypes = { ".lrc", ".elrc", ".txt" };
     private static readonly string[] _lineBreakCharacters = { "\r\n", "\r", "\n" };
 
     /// <inheritdoc />
@@ -26,7 +26,7 @@ public class TxtLyricParser : ILyricParser
     /// <inheritdoc />
     public LyricResponse? ParseLyrics(LyricFile lyrics)
     {
-        if (!_supportedMediaTypes.Contains(Path.GetExtension(lyrics.Name.AsSpan())[1..], StringComparison.OrdinalIgnoreCase))
+        if (!_supportedMediaTypes.Contains(Path.GetExtension(lyrics.Name.AsSpan()), StringComparison.OrdinalIgnoreCase))
         {
             return null;
         }