5 files changed, 21 insertions, 8 deletions
diff --git a/MediaBrowser.Controller/Entities/Folder.cs b/MediaBrowser.Controller/Entities/Folder.cs
index 1cf7bb9b2..07fbe6035 100644
--- a/MediaBrowser.Controller/Entities/Folder.cs
+++ b/MediaBrowser.Controller/Entities/Folder.cs
@@ -1152,6 +1152,11 @@ namespace MediaBrowser.Controller.Entities
 
         public List<BaseItem> GetChildren(User user, bool includeLinkedChildren)
         {
+            if (user == null)
+            {
+                throw new ArgumentNullException(nameof(user));
+            }
+
             return GetChildren(user, includeLinkedChildren, null);
         }
 
@@ -1163,7 +1168,10 @@ namespace MediaBrowser.Controller.Entities
             }
 
             //the true root should return our users root folder children
-            if (IsPhysicalRoot) return LibraryManager.GetUserRootFolder().GetChildren(user, includeLinkedChildren);
+            if (IsPhysicalRoot)
+            {
+                return LibraryManager.GetUserRootFolder().GetChildren(user, includeLinkedChildren);
+            }
 
             var result = new Dictionary<Guid, BaseItem>();
 
diff --git a/MediaBrowser.Controller/Entities/InternalItemsQuery.cs b/MediaBrowser.Controller/Entities/InternalItemsQuery.cs
index 78f859069..bd96059e3 100644
--- a/MediaBrowser.Controller/Entities/InternalItemsQuery.cs
+++ b/MediaBrowser.Controller/Entities/InternalItemsQuery.cs
@@ -155,7 +155,7 @@ namespace MediaBrowser.Controller.Entities
         public bool EnableGroupByMetadataKey { get; set; }
         public bool? HasChapterImages { get; set; }
 
-        public ValueTuple<string, SortOrder>[] OrderBy { get; set; }
+        public IReadOnlyList<(string, SortOrder)> OrderBy { get; set; }
 
         public DateTime? MinDateCreated { get; set; }
         public DateTime? MinDateLastSaved { get; set; }
diff --git a/MediaBrowser.Controller/Entities/TV/Series.cs b/MediaBrowser.Controller/Entities/TV/Series.cs
index 76cb9a651..2475b2b7e 100644
--- a/MediaBrowser.Controller/Entities/TV/Series.cs
+++ b/MediaBrowser.Controller/Entities/TV/Series.cs
@@ -226,14 +226,16 @@ namespace MediaBrowser.Controller.Entities.TV
 
                 query.AncestorWithPresentationUniqueKey = null;
                 query.SeriesPresentationUniqueKey = seriesKey;
-                if (query.OrderBy.Length == 0)
+                if (query.OrderBy.Count == 0)
                 {
                     query.OrderBy = new[] { ItemSortBy.SortName }.Select(i => new ValueTuple<string, SortOrder>(i, SortOrder.Ascending)).ToArray();
                 }
+
                 if (query.IncludeItemTypes.Length == 0)
                 {
                     query.IncludeItemTypes = new[] { typeof(Episode).Name, typeof(Season).Name };
                 }
+
                 query.IsVirtualItem = false;
                 return LibraryManager.GetItemsResult(query);
             }
diff --git a/MediaBrowser.Controller/Entities/UserViewBuilder.cs b/MediaBrowser.Controller/Entities/UserViewBuilder.cs
index 454bdc4ae..435a1e8da 100644
--- a/MediaBrowser.Controller/Entities/UserViewBuilder.cs
+++ b/MediaBrowser.Controller/Entities/UserViewBuilder.cs
@@ -450,14 +450,16 @@ namespace MediaBrowser.Controller.Entities
             return SortAndPage(items, totalRecordLimit, query, libraryManager, true);
         }
 
-        public static QueryResult<BaseItem> SortAndPage(IEnumerable<BaseItem> items,
+        public static QueryResult<BaseItem> SortAndPage(
+            IEnumerable<BaseItem> items,
             int? totalRecordLimit,
             InternalItemsQuery query,
-            ILibraryManager libraryManager, bool enableSorting)
+            ILibraryManager libraryManager,
+            bool enableSorting)
         {
             if (enableSorting)
             {
-                if (query.OrderBy.Length > 0)
+                if (query.OrderBy.Count > 0)
                 {
                     items = libraryManager.Sort(items, query.User, query.OrderBy);
                 }
diff --git a/MediaBrowser.Controller/Entities/Video.cs b/MediaBrowser.Controller/Entities/Video.cs
index 60906bdb0..af4d227bc 100644
--- a/MediaBrowser.Controller/Entities/Video.cs
+++ b/MediaBrowser.Controller/Entities/Video.cs
@@ -137,7 +137,7 @@ namespace MediaBrowser.Controller.Entities
         /// <value>The video3 D format.</value>
         public Video3DFormat? Video3DFormat { get; set; }
 
-        public string[] GetPlayableStreamFileNames(IMediaEncoder mediaEncoder)
+        public string[] GetPlayableStreamFileNames()
         {
             var videoType = VideoType;
 
@@ -153,7 +153,8 @@ namespace MediaBrowser.Controller.Entities
             {
                 return Array.Empty<string>();
             }
-            return mediaEncoder.GetPlayableStreamFileNames(Path, videoType);
+
+            throw new NotImplementedException();
         }
 
         /// <summary>