Enable nullable for more files

1 files changed, 4 insertions, 6 deletions

diff --git a/Emby.Server.Implementations/Library/LiveStreamHelper.cs b/Emby.Server.Implementations/Library/LiveStreamHelper.cs
index d4aeae41a..0ebfe3ae7 100644
--- a/Emby.Server.Implementations/Library/LiveStreamHelper.cs
+++ b/Emby.Server.Implementations/Library/LiveStreamHelper.cs
@@ -1,5 +1,3 @@
-#nullable disable
-
 #pragma warning disable CS1591
 
 using System;
@@ -37,16 +35,16 @@ namespace Emby.Server.Implementations.Library
             _appPaths = appPaths;
         }
 
-        public async Task AddMediaInfoWithProbe(MediaSourceInfo mediaSource, bool isAudio, string cacheKey, bool addProbeDelay, CancellationToken cancellationToken)
+        public async Task AddMediaInfoWithProbe(MediaSourceInfo mediaSource, bool isAudio, string? cacheKey, bool addProbeDelay, CancellationToken cancellationToken)
         {
             var originalRuntime = mediaSource.RunTimeTicks;
 
             var now = DateTime.UtcNow;
 
-            MediaInfo mediaInfo = null;
+            MediaInfo? mediaInfo = null;
             var cacheFilePath = string.IsNullOrEmpty(cacheKey) ? null : Path.Combine(_appPaths.CachePath, "mediainfo", cacheKey.GetMD5().ToString("N", CultureInfo.InvariantCulture) + ".json");
 
-            if (!string.IsNullOrEmpty(cacheKey))
+            if (cacheFilePath is not null)
             {
                 try
                 {
@@ -91,7 +89,7 @@ namespace Emby.Server.Implementations.Library
 
                 if (cacheFilePath is not null)
                 {
-                    Directory.CreateDirectory(Path.GetDirectoryName(cacheFilePath));
+                    Directory.CreateDirectory(Path.GetDirectoryName(cacheFilePath) ?? throw new InvalidOperationException("Path can't be a root directory."));
                     FileStream createStream = AsyncFile.OpenWrite(cacheFilePath);
                     await using (createStream.ConfigureAwait(false))
                     {