Replace == null with is null

22 files changed, 91 insertions, 91 deletions

diff --git a/MediaBrowser.Controller/BaseItemManager/BaseItemManager.cs b/MediaBrowser.Controller/BaseItemManager/BaseItemManager.cs
index 61539cae5..b0e394dc5 100644
--- a/MediaBrowser.Controller/BaseItemManager/BaseItemManager.cs
+++ b/MediaBrowser.Controller/BaseItemManager/BaseItemManager.cs
@@ -56,7 +56,7 @@ namespace MediaBrowser.Controller.BaseItemManager
 
             var itemConfig = _serverConfigurationManager.Configuration.MetadataOptions.FirstOrDefault(i => string.Equals(i.ItemType, baseItem.GetType().Name, StringComparison.OrdinalIgnoreCase));
 
-            return itemConfig == null || !itemConfig.DisabledMetadataFetchers.Contains(name.AsSpan(), StringComparison.OrdinalIgnoreCase);
+            return itemConfig is null || !itemConfig.DisabledMetadataFetchers.Contains(name.AsSpan(), StringComparison.OrdinalIgnoreCase);
         }
 
         /// <inheritdoc />
@@ -81,7 +81,7 @@ namespace MediaBrowser.Controller.BaseItemManager
 
             var itemConfig = _serverConfigurationManager.Configuration.MetadataOptions.FirstOrDefault(i => string.Equals(i.ItemType, baseItem.GetType().Name, StringComparison.OrdinalIgnoreCase));
 
-            return itemConfig == null || !itemConfig.DisabledImageFetchers.Contains(name.AsSpan(), StringComparison.OrdinalIgnoreCase);
+            return itemConfig is null || !itemConfig.DisabledImageFetchers.Contains(name.AsSpan(), StringComparison.OrdinalIgnoreCase);
         }
 
         /// <summary>
diff --git a/MediaBrowser.Controller/Drawing/ImageProcessorExtensions.cs b/MediaBrowser.Controller/Drawing/ImageProcessorExtensions.cs
index b036425ab..62b70ce53 100644
--- a/MediaBrowser.Controller/Drawing/ImageProcessorExtensions.cs
+++ b/MediaBrowser.Controller/Drawing/ImageProcessorExtensions.cs
@@ -18,7 +18,7 @@ namespace MediaBrowser.Controller.Drawing
         {
             var imageInfo = item.GetImageInfo(imageType, imageIndex);
 
-            if (imageInfo == null)
+            if (imageInfo is null)
             {
                 return null;
             }
diff --git a/MediaBrowser.Controller/Entities/AggregateFolder.cs b/MediaBrowser.Controller/Entities/AggregateFolder.cs
index e671e5c71..4dc78ff86 100644
--- a/MediaBrowser.Controller/Entities/AggregateFolder.cs
+++ b/MediaBrowser.Controller/Entities/AggregateFolder.cs
@@ -67,7 +67,7 @@ namespace MediaBrowser.Controller.Entities
         {
             lock (_childIdsLock)
             {
-                if (_childrenIds == null || _childrenIds.Length == 0)
+                if (_childrenIds is null || _childrenIds.Length == 0)
                 {
                     var list = base.LoadChildren();
                     _childrenIds = list.Select(i => i.Id).ToArray();
diff --git a/MediaBrowser.Controller/Entities/BaseItem.cs b/MediaBrowser.Controller/Entities/BaseItem.cs
index 7f5f9f74b..20f009588 100644
--- a/MediaBrowser.Controller/Entities/BaseItem.cs
+++ b/MediaBrowser.Controller/Entities/BaseItem.cs
@@ -494,7 +494,7 @@ namespace MediaBrowser.Controller.Entities
         {
             get
             {
-                if (_sortName == null)
+                if (_sortName is null)
                 {
                     if (!string.IsNullOrEmpty(ForcedSortName))
                     {
@@ -880,7 +880,7 @@ namespace MediaBrowser.Controller.Entities
         /// <returns>System.String.</returns>
         protected virtual string CreateSortName()
         {
-            if (Name == null)
+            if (Name is null)
             {
                 return null; // some items may not have name filled in properly
             }
@@ -1073,7 +1073,7 @@ namespace MediaBrowser.Controller.Entities
             {
                 var stream = i.VideoStream;
 
-                return stream == null || stream.Width == null ? 0 : stream.Width.Value;
+                return stream is null || stream.Width is null ? 0 : stream.Width.Value;
             })
             .ToList();
         }
@@ -1330,7 +1330,7 @@ namespace MediaBrowser.Controller.Entities
 
         public void SetParent(Folder parent)
         {
-            ParentId = parent == null ? Guid.Empty : parent.Id;
+            ParentId = parent is null ? Guid.Empty : parent.Id;
         }
 
         /// <summary>
@@ -1534,7 +1534,7 @@ namespace MediaBrowser.Controller.Entities
 
             var maxAllowedRating = user.MaxParentalAgeRating;
 
-            if (maxAllowedRating == null)
+            if (maxAllowedRating is null)
             {
                 return true;
             }
@@ -1701,7 +1701,7 @@ namespace MediaBrowser.Controller.Entities
             var item = FindLinkedChild(info);
 
             // If still null, log
-            if (item == null)
+            if (item is null)
             {
                 // Don't keep searching over and over
                 info.ItemId = Guid.Empty;
@@ -1725,7 +1725,7 @@ namespace MediaBrowser.Controller.Entities
 
                 var itemByPath = LibraryManager.FindByPath(path, null);
 
-                if (itemByPath == null)
+                if (itemByPath is null)
                 {
                     Logger.LogWarning("Unable to find linked item at path {0}", info.Path);
                 }
@@ -1737,7 +1737,7 @@ namespace MediaBrowser.Controller.Entities
             {
                 var item = LibraryManager.GetItemById(info.LibraryItemId);
 
-                if (item == null)
+                if (item is null)
                 {
                     Logger.LogWarning("Unable to find linked item at path {0}", info.Path);
                 }
@@ -1892,7 +1892,7 @@ namespace MediaBrowser.Controller.Entities
 
             var existingImage = GetImageInfo(image.Type, index);
 
-            if (existingImage == null)
+            if (existingImage is null)
             {
                 AddImage(image);
             }
@@ -1915,7 +1915,7 @@ namespace MediaBrowser.Controller.Entities
 
             var image = GetImageInfo(type, index);
 
-            if (image == null)
+            if (image is null)
             {
                 AddImage(GetImageInfo(file, type));
             }
@@ -1942,7 +1942,7 @@ namespace MediaBrowser.Controller.Entities
         {
             var info = GetImageInfo(type, index);
 
-            if (info == null)
+            if (info is null)
             {
                 // Nothing to do
                 return;
@@ -2035,7 +2035,7 @@ namespace MediaBrowser.Controller.Entities
             {
                 var chapter = ItemRepository.GetChapter(this, imageIndex);
 
-                if (chapter == null)
+                if (chapter is null)
                 {
                     return null;
                 }
@@ -2147,7 +2147,7 @@ namespace MediaBrowser.Controller.Entities
 
             foreach (var newImage in images)
             {
-                if (newImage == null)
+                if (newImage is null)
                 {
                     throw new ArgumentException("null image found in list");
                 }
@@ -2155,7 +2155,7 @@ namespace MediaBrowser.Controller.Entities
                 var existing = existingImages
                     .Find(i => string.Equals(i.Path, newImage.FullName, StringComparison.OrdinalIgnoreCase));
 
-                if (existing == null)
+                if (existing is null)
                 {
                     newImageList.Add(newImage);
                 }
@@ -2241,7 +2241,7 @@ namespace MediaBrowser.Controller.Entities
             var info1 = GetImageInfo(type, index1);
             var info2 = GetImageInfo(type, index2);
 
-            if (info1 == null || info2 == null)
+            if (info1 is null || info2 is null)
             {
                 // Nothing to do
                 return Task.CompletedTask;
@@ -2290,7 +2290,7 @@ namespace MediaBrowser.Controller.Entities
 
             var userdata = UserDataManager.GetUserData(user, this);
 
-            return userdata == null || !userdata.Played;
+            return userdata is null || !userdata.Played;
         }
 
         ItemLookupInfo IHasLookupInfo<ItemLookupInfo>.GetLookupInfo()
@@ -2445,14 +2445,14 @@ namespace MediaBrowser.Controller.Entities
             // Try to retrieve it from the db. If we don't find it, use the resolved version
             var video = LibraryManager.GetItemById(id) as Video;
 
-            if (video == null)
+            if (video is null)
             {
                 video = LibraryManager.ResolvePath(FileSystem.GetFileSystemInfo(path)) as Video;
 
                 newOptions.ForceSave = true;
             }
 
-            if (video == null)
+            if (video is null)
             {
                 return Task.FromResult(true);
             }
diff --git a/MediaBrowser.Controller/Entities/BaseItemExtensions.cs b/MediaBrowser.Controller/Entities/BaseItemExtensions.cs
index 948eb4375..dc06bf9bd 100644
--- a/MediaBrowser.Controller/Entities/BaseItemExtensions.cs
+++ b/MediaBrowser.Controller/Entities/BaseItemExtensions.cs
@@ -89,7 +89,7 @@ namespace MediaBrowser.Controller.Entities
                 }
 
                 var v = sourceProp.GetValue(source);
-                if (v == null)
+                if (v is null)
                 {
                     continue;
                 }
diff --git a/MediaBrowser.Controller/Entities/Extensions.cs b/MediaBrowser.Controller/Entities/Extensions.cs
index 1acb92fdc..d4a779390 100644
--- a/MediaBrowser.Controller/Entities/Extensions.cs
+++ b/MediaBrowser.Controller/Entities/Extensions.cs
@@ -26,7 +26,7 @@ namespace MediaBrowser.Controller.Entities
 
             var current = item.RemoteTrailers.FirstOrDefault(i => string.Equals(i.Url, url, StringComparison.OrdinalIgnoreCase));
 
-            if (current == null)
+            if (current is null)
             {
                 var mediaUrl = new MediaUrl
                 {
diff --git a/MediaBrowser.Controller/Entities/Folder.cs b/MediaBrowser.Controller/Entities/Folder.cs
index 808f91810..9ef5504af 100644
--- a/MediaBrowser.Controller/Entities/Folder.cs
+++ b/MediaBrowser.Controller/Entities/Folder.cs
@@ -703,7 +703,7 @@ namespace MediaBrowser.Controller.Entities
                 IEnumerable<BaseItem> items;
                 Func<BaseItem, bool> filter = i => UserViewBuilder.Filter(i, user, query, UserDataManager, LibraryManager);
 
-                if (query.User == null)
+                if (query.User is null)
                 {
                     items = GetRecursiveChildren(filter);
                 }
@@ -961,7 +961,7 @@ namespace MediaBrowser.Controller.Entities
 
             IEnumerable<BaseItem> items;
 
-            if (query.User == null)
+            if (query.User is null)
             {
                 items = Children.Where(filter);
             }
@@ -1311,7 +1311,7 @@ namespace MediaBrowser.Controller.Entities
             }
 
             // If there are not sub-folders, proceed as normal.
-            if (children == null)
+            if (children is null)
             {
                 children = GetEligibleChildrenForRecursiveChildren(user);
             }
@@ -1320,7 +1320,7 @@ namespace MediaBrowser.Controller.Entities
             {
                 bool? isVisibleToUser = null;
 
-                if (query == null || UserViewBuilder.FilterItem(child, query))
+                if (query is null || UserViewBuilder.FilterItem(child, query))
                 {
                     isVisibleToUser = child.IsVisible(user);
 
@@ -1345,7 +1345,7 @@ namespace MediaBrowser.Controller.Entities
             {
                 foreach (var child in GetLinkedChildren(user))
                 {
-                    if (query == null || UserViewBuilder.FilterItem(child, query))
+                    if (query is null || UserViewBuilder.FilterItem(child, query))
                     {
                         if (child.IsVisible(user))
                         {
@@ -1402,7 +1402,7 @@ namespace MediaBrowser.Controller.Entities
         {
             foreach (var child in Children)
             {
-                if (filter == null || filter(child))
+                if (filter is null || filter(child))
                 {
                     result[child.Id] = child;
                 }
@@ -1420,7 +1420,7 @@ namespace MediaBrowser.Controller.Entities
             {
                 foreach (var child in GetLinkedChildren())
                 {
-                    if (filter == null || filter(child))
+                    if (filter is null || filter(child))
                     {
                         result[child.Id] = child;
                     }
@@ -1478,7 +1478,7 @@ namespace MediaBrowser.Controller.Entities
 
         public List<BaseItem> GetLinkedChildren(User user)
         {
-            if (!FilterLinkedChildrenPerUser || user == null)
+            if (!FilterLinkedChildrenPerUser || user is null)
             {
                 return GetLinkedChildren();
             }
@@ -1504,7 +1504,7 @@ namespace MediaBrowser.Controller.Entities
             {
                 var child = GetLinkedChild(i);
 
-                if (child == null)
+                if (child is null)
                 {
                     continue;
                 }
diff --git a/MediaBrowser.Controller/Entities/InternalItemsQuery.cs b/MediaBrowser.Controller/Entities/InternalItemsQuery.cs
index 1bf528538..fc019c0ee 100644
--- a/MediaBrowser.Controller/Entities/InternalItemsQuery.cs
+++ b/MediaBrowser.Controller/Entities/InternalItemsQuery.cs
@@ -316,7 +316,7 @@ namespace MediaBrowser.Controller.Entities
         {
             set
             {
-                if (value == null)
+                if (value is null)
                 {
                     ParentId = Guid.Empty;
                     ParentType = null;
diff --git a/MediaBrowser.Controller/Entities/ItemImageInfo.cs b/MediaBrowser.Controller/Entities/ItemImageInfo.cs
index ea8555dbf..0171af27c 100644
--- a/MediaBrowser.Controller/Entities/ItemImageInfo.cs
+++ b/MediaBrowser.Controller/Entities/ItemImageInfo.cs
@@ -39,6 +39,6 @@ namespace MediaBrowser.Controller.Entities
         public string BlurHash { get; set; }
 
         [JsonIgnore]
-        public bool IsLocalFile => Path == null || !Path.StartsWith("http", StringComparison.OrdinalIgnoreCase);
+        public bool IsLocalFile => Path is null || !Path.StartsWith("http", StringComparison.OrdinalIgnoreCase);
     }
 }
diff --git a/MediaBrowser.Controller/Entities/PeopleHelper.cs b/MediaBrowser.Controller/Entities/PeopleHelper.cs
index 8571bfcea..46d969ffe 100644
--- a/MediaBrowser.Controller/Entities/PeopleHelper.cs
+++ b/MediaBrowser.Controller/Entities/PeopleHelper.cs
@@ -53,7 +53,7 @@ namespace MediaBrowser.Controller.Entities
             {
                 // If the actor already exists without a role and we have one, fill it in
                 var existing = people.FirstOrDefault(p => p.Name.Equals(person.Name, StringComparison.OrdinalIgnoreCase) && (p.Type.Equals(PersonType.Actor, StringComparison.OrdinalIgnoreCase) || p.Type.Equals(PersonType.GuestStar, StringComparison.OrdinalIgnoreCase)));
-                if (existing == null)
+                if (existing is null)
                 {
                     // Wasn't there - add it
                     people.Add(person);
@@ -76,7 +76,7 @@ namespace MediaBrowser.Controller.Entities
                             string.Equals(p.Type, person.Type, StringComparison.OrdinalIgnoreCase));
 
                 // Check for dupes based on the combination of Name and Type
-                if (existing == null)
+                if (existing is null)
                 {
                     people.Add(person);
                 }
diff --git a/MediaBrowser.Controller/Entities/TV/Episode.cs b/MediaBrowser.Controller/Entities/TV/Episode.cs
index 15b721fe6..2d9cdb8d0 100644
--- a/MediaBrowser.Controller/Entities/TV/Episode.cs
+++ b/MediaBrowser.Controller/Entities/TV/Episode.cs
@@ -136,7 +136,7 @@ namespace MediaBrowser.Controller.Entities.TV
         public string FindSeriesSortName()
         {
             var series = Series;
-            return series == null ? SeriesName : series.SortName;
+            return series is null ? SeriesName : series.SortName;
         }
 
         public override double GetDefaultPrimaryImageAspectRatio()
@@ -181,14 +181,14 @@ namespace MediaBrowser.Controller.Entities.TV
         public string FindSeriesPresentationUniqueKey()
         {
             var series = Series;
-            return series == null ? null : series.PresentationUniqueKey;
+            return series is null ? null : series.PresentationUniqueKey;
         }
 
         public string FindSeasonName()
         {
             var season = Season;
 
-            if (season == null)
+            if (season is null)
             {
                 if (ParentIndexNumber.HasValue)
                 {
@@ -204,7 +204,7 @@ namespace MediaBrowser.Controller.Entities.TV
         public string FindSeriesName()
         {
             var series = Series;
-            return series == null ? SeriesName : series.Name;
+            return series is null ? SeriesName : series.Name;
         }
 
         public Guid FindSeasonId()
@@ -212,7 +212,7 @@ namespace MediaBrowser.Controller.Entities.TV
             var season = FindParent<Season>();
 
             // Episodes directly in series folder
-            if (season == null)
+            if (season is null)
             {
                 var series = Series;
 
@@ -226,7 +226,7 @@ namespace MediaBrowser.Controller.Entities.TV
                 }
             }
 
-            return season == null ? Guid.Empty : season.Id;
+            return season is null ? Guid.Empty : season.Id;
         }
 
         /// <summary>
@@ -262,7 +262,7 @@ namespace MediaBrowser.Controller.Entities.TV
         public Guid FindSeriesId()
         {
             var series = FindParent<Series>();
-            return series == null ? Guid.Empty : series.Id;
+            return series is null ? Guid.Empty : series.Id;
         }
 
         public override IEnumerable<Guid> GetAncestorIds()
diff --git a/MediaBrowser.Controller/Entities/TV/Season.cs b/MediaBrowser.Controller/Entities/TV/Season.cs
index 599d35da6..19fe16c8f 100644
--- a/MediaBrowser.Controller/Entities/TV/Season.cs
+++ b/MediaBrowser.Controller/Entities/TV/Season.cs
@@ -93,7 +93,7 @@ namespace MediaBrowser.Controller.Entities.TV
         public string FindSeriesSortName()
         {
             var series = Series;
-            return series == null ? SeriesName : series.SortName;
+            return series is null ? SeriesName : series.SortName;
         }
 
         public override List<string> GetUserDataKeys()
@@ -149,7 +149,7 @@ namespace MediaBrowser.Controller.Entities.TV
 
         protected override QueryResult<BaseItem> GetItemsInternal(InternalItemsQuery query)
         {
-            if (query.User == null)
+            if (query.User is null)
             {
                 return base.GetItemsInternal(query);
             }
@@ -208,13 +208,13 @@ namespace MediaBrowser.Controller.Entities.TV
         public string FindSeriesPresentationUniqueKey()
         {
             var series = Series;
-            return series == null ? null : series.PresentationUniqueKey;
+            return series is null ? null : series.PresentationUniqueKey;
         }
 
         public string FindSeriesName()
         {
             var series = Series;
-            return series == null ? SeriesName : series.Name;
+            return series is null ? SeriesName : series.Name;
         }
 
         public Guid FindSeriesId()
diff --git a/MediaBrowser.Controller/Entities/TV/Series.cs b/MediaBrowser.Controller/Entities/TV/Series.cs
index d66802a64..069071ee5 100644
--- a/MediaBrowser.Controller/Entities/TV/Series.cs
+++ b/MediaBrowser.Controller/Entities/TV/Series.cs
@@ -266,7 +266,7 @@ namespace MediaBrowser.Controller.Entities.TV
                 DtoOptions = options
             };
 
-            if (user == null || !user.DisplayMissingEpisodes)
+            if (user is null || !user.DisplayMissingEpisodes)
             {
                 query.IsMissing = false;
             }
@@ -384,7 +384,7 @@ namespace MediaBrowser.Controller.Entities.TV
 
         public List<BaseItem> GetSeasonEpisodes(Season parentSeason, User user, IEnumerable<BaseItem> allSeriesEpisodes, DtoOptions options)
         {
-            if (allSeriesEpisodes == null)
+            if (allSeriesEpisodes is null)
             {
                 return GetSeasonEpisodes(parentSeason, user, options);
             }
diff --git a/MediaBrowser.Controller/Entities/UserRootFolder.cs b/MediaBrowser.Controller/Entities/UserRootFolder.cs
index e547db523..b19b1fa13 100644
--- a/MediaBrowser.Controller/Entities/UserRootFolder.cs
+++ b/MediaBrowser.Controller/Entities/UserRootFolder.cs
@@ -56,7 +56,7 @@ namespace MediaBrowser.Controller.Entities
         {
             lock (_childIdsLock)
             {
-                if (_childrenIds == null)
+                if (_childrenIds is null)
                 {
                     var list = base.LoadChildren();
                     _childrenIds = list.Select(i => i.Id).ToList();
diff --git a/MediaBrowser.Controller/Entities/UserViewBuilder.cs b/MediaBrowser.Controller/Entities/UserViewBuilder.cs
index f467a6038..7ebf9e5f8 100644
--- a/MediaBrowser.Controller/Entities/UserViewBuilder.cs
+++ b/MediaBrowser.Controller/Entities/UserViewBuilder.cs
@@ -559,7 +559,7 @@ namespace MediaBrowser.Controller.Entities
                 var val = query.Is3D.Value;
                 var video = item as Video;
 
-                if (video == null || val != video.Video3DFormat.HasValue)
+                if (video is null || val != video.Video3DFormat.HasValue)
                 {
                     return false;
                 }
@@ -689,7 +689,7 @@ namespace MediaBrowser.Controller.Entities
 
                 var video = item as Video;
 
-                if (video == null || val != video.HasSubtitles)
+                if (video is null || val != video.HasSubtitles)
                 {
                     return false;
                 }
@@ -776,7 +776,7 @@ namespace MediaBrowser.Controller.Entities
             if (query.VideoTypes.Length > 0)
             {
                 var video = item as Video;
-                if (video == null || !query.VideoTypes.Contains(video.VideoType))
+                if (video is null || !query.VideoTypes.Contains(video.VideoType))
                 {
                     return false;
                 }
@@ -913,7 +913,7 @@ namespace MediaBrowser.Controller.Entities
             {
                 var episode = item as Episode;
 
-                if (episode == null)
+                if (episode is null)
                 {
                     return false;
                 }
@@ -929,7 +929,7 @@ namespace MediaBrowser.Controller.Entities
 
         private IEnumerable<BaseItem> GetMediaFolders(User user)
         {
-            if (user == null)
+            if (user is null)
             {
                 return _libraryManager.RootFolder
                     .Children
@@ -945,7 +945,7 @@ namespace MediaBrowser.Controller.Entities
 
         private BaseItem[] GetMediaFolders(User user, IEnumerable<string> viewTypes)
         {
-            if (user == null)
+            if (user is null)
             {
                 return GetMediaFolders(null)
                     .Where(i =>
@@ -967,7 +967,7 @@ namespace MediaBrowser.Controller.Entities
 
         private BaseItem[] GetMediaFolders(Folder parent, User user, IEnumerable<string> viewTypes)
         {
-            if (parent == null || parent is UserView)
+            if (parent is null || parent is UserView)
             {
                 return GetMediaFolders(user, viewTypes);
             }
diff --git a/MediaBrowser.Controller/Library/ItemResolveArgs.cs b/MediaBrowser.Controller/Library/ItemResolveArgs.cs
index 91d162b41..f93c890fe 100644
--- a/MediaBrowser.Controller/Library/ItemResolveArgs.cs
+++ b/MediaBrowser.Controller/Library/ItemResolveArgs.cs
@@ -47,7 +47,7 @@ namespace MediaBrowser.Controller.Library
 
         public LibraryOptions LibraryOptions
         {
-            get => _libraryOptions ??= Parent == null ? new LibraryOptions() : BaseItem.LibraryManager.GetLibraryOptions(Parent);
+            get => _libraryOptions ??= Parent is null ? new LibraryOptions() : BaseItem.LibraryManager.GetLibraryOptions(Parent);
             set => _libraryOptions = value;
         }
 
@@ -119,7 +119,7 @@ namespace MediaBrowser.Controller.Library
             get
             {
                 var paths = string.IsNullOrEmpty(Path) ? Array.Empty<string>() : new[] { Path };
-                return AdditionalLocations == null ? paths : paths.Concat(AdditionalLocations).ToArray();
+                return AdditionalLocations is null ? paths : paths.Concat(AdditionalLocations).ToArray();
             }
         }
 
@@ -136,7 +136,7 @@ namespace MediaBrowser.Controller.Library
 
                 // Just in case the user decided to nest episodes.
                 // Not officially supported but in some cases we can handle it.
-                if (item == null)
+                if (item is null)
                 {
                     var parents = parent.GetParents();
                     foreach (var currentParent in parents)
@@ -289,7 +289,7 @@ namespace MediaBrowser.Controller.Library
         {
             if (args != null)
             {
-                if (args.Path == null && Path == null)
+                if (args.Path is null && Path is null)
                 {
                     return true;
                 }
diff --git a/MediaBrowser.Controller/Library/NameExtensions.cs b/MediaBrowser.Controller/Library/NameExtensions.cs
index 9d78b8b6c..919570e89 100644
--- a/MediaBrowser.Controller/Library/NameExtensions.cs
+++ b/MediaBrowser.Controller/Library/NameExtensions.cs
@@ -15,7 +15,7 @@ namespace MediaBrowser.Controller.Library
 
         private static string RemoveDiacritics(string? name)
         {
-            if (name == null)
+            if (name is null)
             {
                 return string.Empty;
             }
diff --git a/MediaBrowser.Controller/LiveTv/LiveTvChannel.cs b/MediaBrowser.Controller/LiveTv/LiveTvChannel.cs
index 335222da9..978826042 100644
--- a/MediaBrowser.Controller/LiveTv/LiveTvChannel.cs
+++ b/MediaBrowser.Controller/LiveTv/LiveTvChannel.cs
@@ -139,7 +139,7 @@ namespace MediaBrowser.Controller.LiveTv
                 Path = Path,
                 RunTimeTicks = RunTimeTicks,
                 Type = MediaSourceType.Placeholder,
-                IsInfiniteStream = RunTimeTicks == null
+                IsInfiniteStream = RunTimeTicks is null
             };
 
             list.Add(info);
diff --git a/MediaBrowser.Controller/MediaEncoding/EncodingHelper.cs b/MediaBrowser.Controller/MediaEncoding/EncodingHelper.cs
index fae53acbf..d423a2fbe 100644
--- a/MediaBrowser.Controller/MediaEncoding/EncodingHelper.cs
+++ b/MediaBrowser.Controller/MediaEncoding/EncodingHelper.cs
@@ -162,7 +162,7 @@ namespace MediaBrowser.Controller.MediaEncoding
 
         private bool IsHwTonemapAvailable(EncodingJobInfo state, EncodingOptions options)
         {
-            if (state.VideoStream == null
+            if (state.VideoStream is null
                 || !options.EnableTonemapping
                 || GetVideoColorBitDepth(state) != 10)
             {
@@ -189,7 +189,7 @@ namespace MediaBrowser.Controller.MediaEncoding
 
         private bool IsVulkanHwTonemapAvailable(EncodingJobInfo state, EncodingOptions options)
         {
-            if (state.VideoStream == null)
+            if (state.VideoStream is null)
             {
                 return false;
             }
@@ -202,7 +202,7 @@ namespace MediaBrowser.Controller.MediaEncoding
 
         private bool IsVaapiVppTonemapAvailable(EncodingJobInfo state, EncodingOptions options)
         {
-            if (state.VideoStream == null
+            if (state.VideoStream is null
                 || !options.EnableVppTonemapping
                 || GetVideoColorBitDepth(state) != 10)
             {
@@ -1066,7 +1066,7 @@ namespace MediaBrowser.Controller.MediaEncoding
 
         public string GetVideoBitrateParam(EncodingJobInfo state, string videoCodec)
         {
-            if (state.OutputVideoBitrate == null)
+            if (state.OutputVideoBitrate is null)
             {
                 return string.Empty;
             }
@@ -2076,7 +2076,7 @@ namespace MediaBrowser.Controller.MediaEncoding
 
         public int? GetAudioBitrateParam(int? audioBitRate, string audioCodec, MediaStream audioStream)
         {
-            if (audioStream == null)
+            if (audioStream is null)
             {
                 return null;
             }
@@ -2167,7 +2167,7 @@ namespace MediaBrowser.Controller.MediaEncoding
         /// <returns>System.Nullable{System.Int32}.</returns>
         public int? GetNumAudioChannelsParam(EncodingJobInfo state, MediaStream audioStream, string outputAudioCodec)
         {
-            if (audioStream == null)
+            if (audioStream is null)
             {
                 return null;
             }
@@ -2320,7 +2320,7 @@ namespace MediaBrowser.Controller.MediaEncoding
             // If we don't have known media info
             // If input is video, use -sn to drop subtitles
             // Otherwise just return empty
-            if (state.VideoStream == null && state.AudioStream == null)
+            if (state.VideoStream is null && state.AudioStream is null)
             {
                 return state.IsInputVideo ? "-sn" : string.Empty;
             }
@@ -2385,7 +2385,7 @@ namespace MediaBrowser.Controller.MediaEncoding
             }
 
             var subtitleMethod = state.SubtitleDeliveryMethod;
-            if (state.SubtitleStream == null || subtitleMethod == SubtitleDeliveryMethod.Hls)
+            if (state.SubtitleStream is null || subtitleMethod == SubtitleDeliveryMethod.Hls)
             {
                 args += " -map -0:s";
             }
@@ -2731,7 +2731,7 @@ namespace MediaBrowser.Controller.MediaEncoding
             }
 
             // default
-            if (filter == null)
+            if (filter is null)
             {
                 if (requestedHeight > 0)
                 {
@@ -4440,7 +4440,7 @@ namespace MediaBrowser.Controller.MediaEncoding
             string outputVideoCodec)
         {
             var videoStream = state.VideoStream;
-            if (videoStream == null)
+            if (videoStream is null)
             {
                 return string.Empty;
             }
@@ -4623,7 +4623,7 @@ namespace MediaBrowser.Controller.MediaEncoding
         {
             var videoStream = state.VideoStream;
             var mediaSource = state.MediaSource;
-            if (videoStream == null || mediaSource == null)
+            if (videoStream is null || mediaSource is null)
             {
                 return null;
             }
@@ -5469,7 +5469,7 @@ namespace MediaBrowser.Controller.MediaEncoding
                 return;
             }
 
-            var inputChannels = audioStream == null ? 6 : audioStream.Channels ?? 6;
+            var inputChannels = audioStream is null ? 6 : audioStream.Channels ?? 6;
             if (inputChannels >= 6)
             {
                 return;
@@ -5521,7 +5521,7 @@ namespace MediaBrowser.Controller.MediaEncoding
 
         private void NormalizeSubtitleEmbed(EncodingJobInfo state)
         {
-            if (state.SubtitleStream == null || state.SubtitleDeliveryMethod != SubtitleDeliveryMethod.Embed)
+            if (state.SubtitleStream is null || state.SubtitleDeliveryMethod != SubtitleDeliveryMethod.Embed)
             {
                 return;
             }
@@ -5536,7 +5536,7 @@ namespace MediaBrowser.Controller.MediaEncoding
 
         public string GetSubtitleEmbedArguments(EncodingJobInfo state)
         {
-            if (state.SubtitleStream == null || state.SubtitleDeliveryMethod != SubtitleDeliveryMethod.Embed)
+            if (state.SubtitleStream is null || state.SubtitleDeliveryMethod != SubtitleDeliveryMethod.Embed)
             {
                 return string.Empty;
             }
@@ -5694,7 +5694,7 @@ namespace MediaBrowser.Controller.MediaEncoding
         public string GetProgressiveVideoAudioArguments(EncodingJobInfo state, EncodingOptions encodingOptions)
         {
             // If the video doesn't have an audio stream, return a default.
-            if (state.AudioStream == null && state.VideoStream != null)
+            if (state.AudioStream is null && state.VideoStream != null)
             {
                 return string.Empty;
             }
diff --git a/MediaBrowser.Controller/MediaEncoding/EncodingJobInfo.cs b/MediaBrowser.Controller/MediaEncoding/EncodingJobInfo.cs
index c9625cf1d..5d13cb8ed 100644
--- a/MediaBrowser.Controller/MediaEncoding/EncodingJobInfo.cs
+++ b/MediaBrowser.Controller/MediaEncoding/EncodingJobInfo.cs
@@ -40,7 +40,7 @@ namespace MediaBrowser.Controller.MediaEncoding
             {
                 if (!_transcodeReasons.HasValue)
                 {
-                    if (BaseRequest.TranscodeReasons == null)
+                    if (BaseRequest.TranscodeReasons is null)
                     {
                         _transcodeReasons = 0;
                         return 0;
@@ -305,7 +305,7 @@ namespace MediaBrowser.Controller.MediaEncoding
                 if (BaseRequest.Static
                     || EncodingHelper.IsCopyCodec(OutputVideoCodec))
                 {
-                    return VideoStream == null ? null : (VideoStream.AverageFrameRate ?? VideoStream.RealFrameRate);
+                    return VideoStream is null ? null : (VideoStream.AverageFrameRate ?? VideoStream.RealFrameRate);
                 }
 
                 return BaseRequest.MaxFramerate ?? BaseRequest.Framerate;
@@ -419,7 +419,7 @@ namespace MediaBrowser.Controller.MediaEncoding
         {
             get
             {
-                if (VideoStream == null)
+                if (VideoStream is null)
                 {
                     return null;
                 }
@@ -437,7 +437,7 @@ namespace MediaBrowser.Controller.MediaEncoding
         {
             get
             {
-                if (AudioStream == null)
+                if (AudioStream is null)
                 {
                     return null;
                 }
diff --git a/MediaBrowser.Controller/Providers/MetadataResult.cs b/MediaBrowser.Controller/Providers/MetadataResult.cs
index 58a0fa2a9..952dd4870 100644
--- a/MediaBrowser.Controller/Providers/MetadataResult.cs
+++ b/MediaBrowser.Controller/Providers/MetadataResult.cs
@@ -59,7 +59,7 @@ namespace MediaBrowser.Controller.Providers
         /// </summary>
         public void ResetPeople()
         {
-            if (People == null)
+            if (People is null)
             {
                 People = new List<PersonInfo>();
             }
@@ -83,7 +83,7 @@ namespace MediaBrowser.Controller.Providers
                 }
             }
 
-            if (userData == null)
+            if (userData is null)
             {
                 userData = new UserItemData()
                 {
diff --git a/MediaBrowser.Controller/Session/SessionInfo.cs b/MediaBrowser.Controller/Session/SessionInfo.cs
index b4520ae48..d30472f22 100644
--- a/MediaBrowser.Controller/Session/SessionInfo.cs
+++ b/MediaBrowser.Controller/Session/SessionInfo.cs
@@ -64,7 +64,7 @@ namespace MediaBrowser.Controller.Session
         {
             get
             {
-                if (Capabilities == null)
+                if (Capabilities is null)
                 {
                     return Array.Empty<string>();
                 }
@@ -182,7 +182,7 @@ namespace MediaBrowser.Controller.Session
         {
             get
             {
-                if (Capabilities == null || !Capabilities.SupportsMediaControl)
+                if (Capabilities is null || !Capabilities.SupportsMediaControl)
                 {
                     return false;
                 }
@@ -204,7 +204,7 @@ namespace MediaBrowser.Controller.Session
         {
             get
             {
-                if (Capabilities == null || !Capabilities.SupportsMediaControl)
+                if (Capabilities is null || !Capabilities.SupportsMediaControl)
                 {
                     return false;
                 }
@@ -239,7 +239,7 @@ namespace MediaBrowser.Controller.Session
         /// </summary>
         /// <value>The supported commands.</value>
         public IReadOnlyList<GeneralCommandType> SupportedCommands
-            => Capabilities == null ? Array.Empty<GeneralCommandType>() : Capabilities.SupportedCommands;
+            => Capabilities is null ? Array.Empty<GeneralCommandType>() : Capabilities.SupportedCommands;
 
         public Tuple<ISessionController, bool> EnsureController<T>(Func<SessionInfo, ISessionController> factory)
         {
@@ -296,7 +296,7 @@ namespace MediaBrowser.Controller.Session
             {
                 _lastProgressInfo = progressInfo;
 
-                if (_progressTimer == null)
+                if (_progressTimer is null)
                 {
                     _progressTimer = new Timer(OnProgressTimerCallback, null, 1000, 1000);
                 }
@@ -315,7 +315,7 @@ namespace MediaBrowser.Controller.Session
             }
 
             var progressInfo = _lastProgressInfo;
-            if (progressInfo == null)
+            if (progressInfo is null)
             {
                 return;
             }