Bump version to 10.9.11

Fix subtitle and attachment extraction when input path contains quotes

.config/dotnet-tools.json

@@ -3,7 +3,7 @@
   "isRoot": true,
   "tools": {
     "dotnet-ef": {
-      "version": "8.0.4",
+      "version": "8.0.7",
       "commands": [
         "dotnet-ef"
       ]

Directory.Packages.props

@@ -16,40 +16,39 @@
     <PackageVersion Include="Diacritics" Version="3.3.29" />
     <PackageVersion Include="DiscUtils.Udf" Version="0.16.13" />
     <PackageVersion Include="DotNet.Glob" Version="3.1.3" />
-    <PackageVersion Include="EFCoreSecondLevelCacheInterceptor" Version="4.4.3" />
     <PackageVersion Include="FsCheck.Xunit" Version="2.16.6" />
     <PackageVersion Include="HarfBuzzSharp.NativeAssets.Linux" Version="7.3.0.2" />
     <PackageVersion Include="ICU4N.Transliterator" Version="60.1.0-alpha.356" />
     <PackageVersion Include="IDisposableAnalyzers" Version="4.0.7" />
     <PackageVersion Include="Jellyfin.XmlTv" Version="10.8.0" />
-    <PackageVersion Include="libse" Version="4.0.5" />
+    <PackageVersion Include="libse" Version="4.0.7" />
     <PackageVersion Include="LrcParser" Version="2023.524.0" />
     <PackageVersion Include="MetaBrainz.MusicBrainz" Version="6.1.0" />
-    <PackageVersion Include="Microsoft.AspNetCore.Authorization" Version="8.0.4" />
+    <PackageVersion Include="Microsoft.AspNetCore.Authorization" Version="8.0.7" />
     <PackageVersion Include="Microsoft.AspNetCore.HttpOverrides" Version="2.2.0" />
-    <PackageVersion Include="Microsoft.AspNetCore.Mvc.Testing" Version="8.0.4" />
+    <PackageVersion Include="Microsoft.AspNetCore.Mvc.Testing" Version="8.0.7" />
     <PackageVersion Include="Microsoft.CodeAnalysis.BannedApiAnalyzers" Version="3.3.4" />
-    <PackageVersion Include="Microsoft.Data.Sqlite" Version="8.0.4" />
-    <PackageVersion Include="Microsoft.EntityFrameworkCore.Design" Version="8.0.4" />
-    <PackageVersion Include="Microsoft.EntityFrameworkCore.Relational" Version="8.0.4" />
-    <PackageVersion Include="Microsoft.EntityFrameworkCore.Sqlite" Version="8.0.4" />
-    <PackageVersion Include="Microsoft.EntityFrameworkCore.Tools" Version="8.0.4" />
+    <PackageVersion Include="Microsoft.Data.Sqlite" Version="8.0.7" />
+    <PackageVersion Include="Microsoft.EntityFrameworkCore.Design" Version="8.0.7" />
+    <PackageVersion Include="Microsoft.EntityFrameworkCore.Relational" Version="8.0.7" />
+    <PackageVersion Include="Microsoft.EntityFrameworkCore.Sqlite" Version="8.0.7" />
+    <PackageVersion Include="Microsoft.EntityFrameworkCore.Tools" Version="8.0.7" />
     <PackageVersion Include="Microsoft.Extensions.Caching.Abstractions" Version="8.0.0" />
     <PackageVersion Include="Microsoft.Extensions.Caching.Memory" Version="8.0.0" />
     <PackageVersion Include="Microsoft.Extensions.Configuration.Abstractions" Version="8.0.0" />
-    <PackageVersion Include="Microsoft.Extensions.Configuration.Binder" Version="8.0.1" />
+    <PackageVersion Include="Microsoft.Extensions.Configuration.Binder" Version="8.0.2" />
     <PackageVersion Include="Microsoft.Extensions.Configuration.EnvironmentVariables" Version="8.0.0" />
     <PackageVersion Include="Microsoft.Extensions.Configuration.Json" Version="8.0.0" />
     <PackageVersion Include="Microsoft.Extensions.DependencyInjection.Abstractions" Version="8.0.1" />
     <PackageVersion Include="Microsoft.Extensions.DependencyInjection" Version="8.0.0" />
-    <PackageVersion Include="Microsoft.Extensions.Diagnostics.HealthChecks.EntityFrameworkCore" Version="8.0.4" />
-    <PackageVersion Include="Microsoft.Extensions.Diagnostics.HealthChecks" Version="8.0.4" />
+    <PackageVersion Include="Microsoft.Extensions.Diagnostics.HealthChecks.EntityFrameworkCore" Version="8.0.7" />
+    <PackageVersion Include="Microsoft.Extensions.Diagnostics.HealthChecks" Version="8.0.7" />
     <PackageVersion Include="Microsoft.Extensions.Hosting.Abstractions" Version="8.0.0" />
     <PackageVersion Include="Microsoft.Extensions.Http" Version="8.0.0" />
     <PackageVersion Include="Microsoft.Extensions.Logging.Abstractions" Version="8.0.1" />
     <PackageVersion Include="Microsoft.Extensions.Logging" Version="8.0.0" />
     <PackageVersion Include="Microsoft.Extensions.Options" Version="8.0.2" />
-    <PackageVersion Include="Microsoft.NET.Test.Sdk" Version="17.9.0" />
+    <PackageVersion Include="Microsoft.NET.Test.Sdk" Version="17.10.0" />
     <PackageVersion Include="MimeTypes" Version="2.4.0" />
     <PackageVersion Include="Mono.Nat" Version="3.0.4" />
     <PackageVersion Include="Moq" Version="4.18.4" />
@@ -59,12 +58,12 @@
     <PackageVersion Include="prometheus-net.AspNetCore" Version="8.2.1" />
     <PackageVersion Include="prometheus-net.DotNetRuntime" Version="4.4.0" />
     <PackageVersion Include="prometheus-net" Version="8.2.1" />
-    <PackageVersion Include="Serilog.AspNetCore" Version="8.0.1" />
+    <PackageVersion Include="Serilog.AspNetCore" Version="8.0.2" />
     <PackageVersion Include="Serilog.Enrichers.Thread" Version="3.1.0" />
-    <PackageVersion Include="Serilog.Settings.Configuration" Version="8.0.0" />
-    <PackageVersion Include="Serilog.Sinks.Async" Version="1.5.0" />
-    <PackageVersion Include="Serilog.Sinks.Console" Version="5.0.1" />
-    <PackageVersion Include="Serilog.Sinks.File" Version="5.0.0" />
+    <PackageVersion Include="Serilog.Settings.Configuration" Version="8.0.2" />
+    <PackageVersion Include="Serilog.Sinks.Async" Version="2.0.0" />
+    <PackageVersion Include="Serilog.Sinks.Console" Version="6.0.0" />
+    <PackageVersion Include="Serilog.Sinks.File" Version="6.0.0" />
     <PackageVersion Include="Serilog.Sinks.Graylog" Version="3.1.1" />
     <PackageVersion Include="SerilogAnalyzer" Version="0.15.0" />
     <PackageVersion Include="SharpFuzz" Version="2.1.1" />
@@ -74,19 +73,19 @@
     <PackageVersion Include="SmartAnalyzers.MultithreadingAnalyzer" Version="1.1.31" />
     <PackageVersion Include="StyleCop.Analyzers" Version="1.2.0-beta.556" />
     <PackageVersion Include="Svg.Skia" Version="1.0.0.18" />
-    <PackageVersion Include="Swashbuckle.AspNetCore.ReDoc" Version="6.5.0" />
+    <PackageVersion Include="Swashbuckle.AspNetCore.ReDoc" Version="6.6.2" />
     <PackageVersion Include="Swashbuckle.AspNetCore" Version="6.2.3" />
     <PackageVersion Include="System.Globalization" Version="4.3.0" />
     <PackageVersion Include="System.Linq.Async" Version="6.0.1" />
     <PackageVersion Include="System.Text.Encoding.CodePages" Version="8.0.0" />
-    <PackageVersion Include="System.Text.Json" Version="8.0.3" />
-    <PackageVersion Include="System.Threading.Tasks.Dataflow" Version="8.0.0" />
+    <PackageVersion Include="System.Text.Json" Version="8.0.4" />
+    <PackageVersion Include="System.Threading.Tasks.Dataflow" Version="8.0.1" />
     <PackageVersion Include="TagLibSharp" Version="2.3.0" />
     <PackageVersion Include="TMDbLib" Version="2.2.0" />
     <PackageVersion Include="UTF.Unknown" Version="2.5.1" />
     <PackageVersion Include="Xunit.Priority" Version="1.1.6" />
-    <PackageVersion Include="xunit.runner.visualstudio" Version="2.5.8" />
+    <PackageVersion Include="xunit.runner.visualstudio" Version="2.8.1" />
     <PackageVersion Include="Xunit.SkippableFact" Version="1.4.13" />
-    <PackageVersion Include="xunit" Version="2.7.1" />
+    <PackageVersion Include="xunit" Version="2.8.1" />
   </ItemGroup>
-</Project>
+</Project>

Emby.Naming/Emby.Naming.csproj

@@ -36,7 +36,7 @@
   <PropertyGroup>
     <Authors>Jellyfin Contributors</Authors>
     <PackageId>Jellyfin.Naming</PackageId>
-    <VersionPrefix>10.9.3</VersionPrefix>
+    <VersionPrefix>10.9.11</VersionPrefix>
     <RepositoryUrl>https://github.com/jellyfin/jellyfin</RepositoryUrl>
     <PackageLicenseExpression>GPL-3.0-only</PackageLicenseExpression>
   </PropertyGroup>

Emby.Naming/ExternalFiles/ExternalPathParser.cs

@@ -107,7 +107,7 @@ namespace Emby.Naming.ExternalFiles
                         pathInfo.Language = culture.ThreeLetterISOLanguageName;
                         extraString = extraString.Replace(currentSlice, string.Empty, StringComparison.OrdinalIgnoreCase);
                     }
-                    else if (_namingOptions.MediaHearingImpairedFlags.Any(s => currentSliceWithoutSeparator.Contains(s, StringComparison.OrdinalIgnoreCase)))
+                    else if (_namingOptions.MediaHearingImpairedFlags.Any(s => currentSliceWithoutSeparator.Equals(s, StringComparison.OrdinalIgnoreCase)))
                     {
                         pathInfo.IsHearingImpaired = true;
                         extraString = extraString.Replace(currentSlice, string.Empty, StringComparison.OrdinalIgnoreCase);

Emby.Server.Implementations/Data/BaseSqliteRepository.cs

@@ -4,6 +4,7 @@
 
 using System;
 using System.Collections.Generic;
+using System.Threading;
 using Jellyfin.Extensions;
 using Microsoft.Data.Sqlite;
 using Microsoft.Extensions.Logging;
@@ -13,6 +14,8 @@ namespace Emby.Server.Implementations.Data
     public abstract class BaseSqliteRepository : IDisposable
     {
         private bool _disposed = false;
+        private SemaphoreSlim _writeLock = new SemaphoreSlim(1, 1);
+        private SqliteConnection _writeConnection;
 
         /// <summary>
         /// Initializes a new instance of the <see cref="BaseSqliteRepository"/> class.
@@ -98,9 +101,55 @@ namespace Emby.Server.Implementations.Data
             }
         }
 
-        protected SqliteConnection GetConnection()
+        protected ManagedConnection GetConnection(bool readOnly = false)
         {
-            var connection = new SqliteConnection($"Filename={DbFilePath}");
+            if (!readOnly)
+            {
+                _writeLock.Wait();
+                if (_writeConnection is not null)
+                {
+                    return new ManagedConnection(_writeConnection, _writeLock);
+                }
+
+                var writeConnection = new SqliteConnection($"Filename={DbFilePath};Pooling=False");
+                writeConnection.Open();
+
+                if (CacheSize.HasValue)
+                {
+                    writeConnection.Execute("PRAGMA cache_size=" + CacheSize.Value);
+                }
+
+                if (!string.IsNullOrWhiteSpace(LockingMode))
+                {
+                    writeConnection.Execute("PRAGMA locking_mode=" + LockingMode);
+                }
+
+                if (!string.IsNullOrWhiteSpace(JournalMode))
+                {
+                    writeConnection.Execute("PRAGMA journal_mode=" + JournalMode);
+                }
+
+                if (JournalSizeLimit.HasValue)
+                {
+                    writeConnection.Execute("PRAGMA journal_size_limit=" + JournalSizeLimit.Value);
+                }
+
+                if (Synchronous.HasValue)
+                {
+                    writeConnection.Execute("PRAGMA synchronous=" + (int)Synchronous.Value);
+                }
+
+                if (PageSize.HasValue)
+                {
+                    writeConnection.Execute("PRAGMA page_size=" + PageSize.Value);
+                }
+
+                writeConnection.Execute("PRAGMA temp_store=" + (int)TempStore);
+
+                return new ManagedConnection(_writeConnection = writeConnection, _writeLock);
+            }
+
+            var connection = new SqliteConnection($"Filename={DbFilePath};Mode=ReadOnly");
             connection.Open();
 
             if (CacheSize.HasValue)
@@ -135,17 +184,17 @@ namespace Emby.Server.Implementations.Data
 
             connection.Execute("PRAGMA temp_store=" + (int)TempStore);
 
-            return connection;
+            return new ManagedConnection(connection, null);
         }
 
-        public SqliteCommand PrepareStatement(SqliteConnection connection, string sql)
+        public SqliteCommand PrepareStatement(ManagedConnection connection, string sql)
         {
             var command = connection.CreateCommand();
             command.CommandText = sql;
             return command;
         }
 
-        protected bool TableExists(SqliteConnection connection, string name)
+        protected bool TableExists(ManagedConnection connection, string name)
         {
             using var statement = PrepareStatement(connection, "select DISTINCT tbl_name from sqlite_master");
             foreach (var row in statement.ExecuteQuery())
@@ -159,7 +208,7 @@ namespace Emby.Server.Implementations.Data
             return false;
         }
 
-        protected List<string> GetColumnNames(SqliteConnection connection, string table)
+        protected List<string> GetColumnNames(ManagedConnection connection, string table)
         {
             var columnNames = new List<string>();
 
@@ -174,7 +223,7 @@ namespace Emby.Server.Implementations.Data
             return columnNames;
         }
 
-        protected void AddColumn(SqliteConnection connection, string table, string columnName, string type, List<string> existingColumnNames)
+        protected void AddColumn(ManagedConnection connection, string table, string columnName, string type, List<string> existingColumnNames)
         {
             if (existingColumnNames.Contains(columnName, StringComparison.OrdinalIgnoreCase))
             {
@@ -207,6 +256,24 @@ namespace Emby.Server.Implementations.Data
                 return;
             }
 
+            if (dispose)
+            {
+                _writeLock.Wait();
+                try
+                {
+                    _writeConnection.Dispose();
+                }
+                finally
+                {
+                    _writeLock.Release();
+                }
+
+                _writeLock.Dispose();
+            }
+
+            _writeConnection = null;
+            _writeLock = null;
+
             _disposed = true;
         }
     }

Emby.Server.Implementations/Data/ManagedConnection.cs

@@ -0,0 +1,62 @@
+#pragma warning disable CS1591
+
+using System;
+using System.Collections.Generic;
+using System.Threading;
+using Microsoft.Data.Sqlite;
+
+namespace Emby.Server.Implementations.Data;
+
+public sealed class ManagedConnection : IDisposable
+{
+    private readonly SemaphoreSlim? _writeLock;
+
+    private SqliteConnection _db;
+
+    private bool _disposed = false;
+
+    public ManagedConnection(SqliteConnection db, SemaphoreSlim? writeLock)
+    {
+        _db = db;
+        _writeLock = writeLock;
+    }
+
+    public SqliteTransaction BeginTransaction()
+        => _db.BeginTransaction();
+
+    public SqliteCommand CreateCommand()
+        => _db.CreateCommand();
+
+    public void Execute(string commandText)
+        => _db.Execute(commandText);
+
+    public SqliteCommand PrepareStatement(string sql)
+        => _db.PrepareStatement(sql);
+
+    public IEnumerable<SqliteDataReader> Query(string commandText)
+        => _db.Query(commandText);
+
+    public void Dispose()
+    {
+        if (_disposed)
+        {
+            return;
+        }
+
+        if (_writeLock is null)
+        {
+            // Read connections are managed with an internal pool
+            _db.Dispose();
+        }
+        else
+        {
+            // Write lock is managed by BaseSqliteRepository
+            // Don't dispose here
+            _writeLock.Release();
+        }
+
+        _db = null!;
+
+        _disposed = true;
+    }
+}

Emby.Server.Implementations/Data/SqliteItemRepository.cs

@@ -601,7 +601,7 @@ namespace Emby.Server.Implementations.Data
             transaction.Commit();
         }
 
-        private void SaveItemsInTransaction(SqliteConnection db, IEnumerable<(BaseItem Item, List<Guid> AncestorIds, BaseItem TopParent, string UserDataKey, List<string> InheritedTags)> tuples)
+        private void SaveItemsInTransaction(ManagedConnection db, IEnumerable<(BaseItem Item, List<Guid> AncestorIds, BaseItem TopParent, string UserDataKey, List<string> InheritedTags)> tuples)
         {
             using (var saveItemStatement = PrepareStatement(db, SaveItemCommandText))
             using (var deleteAncestorsStatement = PrepareStatement(db, "delete from AncestorIds where ItemId=@ItemId"))
@@ -1261,7 +1261,7 @@ namespace Emby.Server.Implementations.Data
 
             CheckDisposed();
 
-            using (var connection = GetConnection())
+            using (var connection = GetConnection(true))
             using (var statement = PrepareStatement(connection, _retrieveItemColumnsSelectQuery))
             {
                 statement.TryBind("@guid", id);
@@ -1298,16 +1298,15 @@ namespace Emby.Server.Implementations.Data
                 && type != typeof(Book)
                 && type != typeof(LiveTvProgram)
                 && type != typeof(AudioBook)
-                && type != typeof(Audio)
                 && type != typeof(MusicAlbum);
         }
 
         private BaseItem GetItem(SqliteDataReader reader, InternalItemsQuery query)
         {
-            return GetItem(reader, query, HasProgramAttributes(query), HasEpisodeAttributes(query), HasServiceName(query), HasStartDate(query), HasTrailerTypes(query), HasArtistFields(query), HasSeriesFields(query));
+            return GetItem(reader, query, HasProgramAttributes(query), HasEpisodeAttributes(query), HasServiceName(query), HasStartDate(query), HasTrailerTypes(query), HasArtistFields(query), HasSeriesFields(query), false);
         }
 
-        private BaseItem GetItem(SqliteDataReader reader, InternalItemsQuery query, bool enableProgramAttributes, bool hasEpisodeAttributes, bool hasServiceName, bool queryHasStartDate, bool hasTrailerTypes, bool hasArtistFields, bool hasSeriesFields)
+        private BaseItem GetItem(SqliteDataReader reader, InternalItemsQuery query, bool enableProgramAttributes, bool hasEpisodeAttributes, bool hasServiceName, bool queryHasStartDate, bool hasTrailerTypes, bool hasArtistFields, bool hasSeriesFields, bool skipDeserialization)
         {
             var typeString = reader.GetString(0);
 
@@ -1320,7 +1319,7 @@ namespace Emby.Server.Implementations.Data
 
             BaseItem item = null;
 
-            if (TypeRequiresDeserialization(type))
+            if (TypeRequiresDeserialization(type) && !skipDeserialization)
             {
                 try
                 {
@@ -1888,7 +1887,7 @@ namespace Emby.Server.Implementations.Data
             CheckDisposed();
 
             var chapters = new List<ChapterInfo>();
-            using (var connection = GetConnection())
+            using (var connection = GetConnection(true))
             using (var statement = PrepareStatement(connection, "select StartPositionTicks,Name,ImagePath,ImageDateModified from " + ChaptersTableName + " where ItemId = @ItemId order by ChapterIndex asc"))
             {
                 statement.TryBind("@ItemId", item.Id);
@@ -1907,7 +1906,7 @@ namespace Emby.Server.Implementations.Data
         {
             CheckDisposed();
 
-            using (var connection = GetConnection())
+            using (var connection = GetConnection(true))
             using (var statement = PrepareStatement(connection, "select StartPositionTicks,Name,ImagePath,ImageDateModified from " + ChaptersTableName + " where ItemId = @ItemId and ChapterIndex=@ChapterIndex"))
             {
                 statement.TryBind("@ItemId", item.Id);
@@ -1981,7 +1980,7 @@ namespace Emby.Server.Implementations.Data
             transaction.Commit();
         }
 
-        private void InsertChapters(Guid idBlob, IReadOnlyList<ChapterInfo> chapters, SqliteConnection db)
+        private void InsertChapters(Guid idBlob, IReadOnlyList<ChapterInfo> chapters, ManagedConnection db)
         {
             var startIndex = 0;
             var limit = 100;
@@ -2470,7 +2469,7 @@ namespace Emby.Server.Implementations.Data
             var commandText = commandTextBuilder.ToString();
 
             using (new QueryTimeLogger(Logger, commandText))
-            using (var connection = GetConnection())
+            using (var connection = GetConnection(true))
             using (var statement = PrepareStatement(connection, commandText))
             {
                 if (EnableJoinUserData(query))
@@ -2538,7 +2537,7 @@ namespace Emby.Server.Implementations.Data
             var commandText = commandTextBuilder.ToString();
             var items = new List<BaseItem>();
             using (new QueryTimeLogger(Logger, commandText))
-            using (var connection = GetConnection())
+            using (var connection = GetConnection(true))
             using (var statement = PrepareStatement(connection, commandText))
             {
                 if (EnableJoinUserData(query))
@@ -2562,7 +2561,7 @@ namespace Emby.Server.Implementations.Data
 
                 foreach (var row in statement.ExecuteQuery())
                 {
-                    var item = GetItem(row, query, hasProgramAttributes, hasEpisodeAttributes, hasServiceName, hasStartDate, hasTrailerTypes, hasArtistFields, hasSeriesFields);
+                    var item = GetItem(row, query, hasProgramAttributes, hasEpisodeAttributes, hasServiceName, hasStartDate, hasTrailerTypes, hasArtistFields, hasSeriesFields, query.SkipDeserialization);
                     if (item is not null)
                     {
                         items.Add(item);
@@ -2746,7 +2745,7 @@ namespace Emby.Server.Implementations.Data
 
             var list = new List<BaseItem>();
             var result = new QueryResult<BaseItem>();
-            using var connection = GetConnection();
+            using var connection = GetConnection(true);
             using var transaction = connection.BeginTransaction();
             if (!isReturningZeroItems)
             {
@@ -2774,7 +2773,7 @@ namespace Emby.Server.Implementations.Data
 
                     foreach (var row in statement.ExecuteQuery())
                     {
-                        var item = GetItem(row, query, hasProgramAttributes, hasEpisodeAttributes, hasServiceName, hasStartDate, hasTrailerTypes, hasArtistFields, hasSeriesFields);
+                        var item = GetItem(row, query, hasProgramAttributes, hasEpisodeAttributes, hasServiceName, hasStartDate, hasTrailerTypes, hasArtistFields, hasSeriesFields, false);
                         if (item is not null)
                         {
                             list.Add(item);
@@ -2928,7 +2927,7 @@ namespace Emby.Server.Implementations.Data
             var commandText = commandTextBuilder.ToString();
             var list = new List<Guid>();
             using (new QueryTimeLogger(Logger, commandText))
-            using (var connection = GetConnection())
+            using (var connection = GetConnection(true))
             using (var statement = PrepareStatement(connection, commandText))
             {
                 if (EnableJoinUserData(query))
@@ -4477,7 +4476,7 @@ where AncestorIdText not null and ItemValues.Value not null and ItemValues.Type
             transaction.Commit();
         }
 
-        private void ExecuteWithSingleParam(SqliteConnection db, string query, Guid value)
+        private void ExecuteWithSingleParam(ManagedConnection db, string query, Guid value)
         {
             using (var statement = PrepareStatement(db, query))
             {
@@ -4510,7 +4509,7 @@ where AncestorIdText not null and ItemValues.Value not null and ItemValues.Type
             }
 
             var list = new List<string>();
-            using (var connection = GetConnection())
+            using (var connection = GetConnection(true))
             using (var statement = PrepareStatement(connection, commandText.ToString()))
             {
                 // Run this again to bind the params
@@ -4548,7 +4547,7 @@ where AncestorIdText not null and ItemValues.Value not null and ItemValues.Type
             }
 
             var list = new List<PersonInfo>();
-            using (var connection = GetConnection())
+            using (var connection = GetConnection(true))
             using (var statement = PrepareStatement(connection, commandText.ToString()))
             {
                 // Run this again to bind the params
@@ -4633,7 +4632,7 @@ AND Type = @InternalPersonType)");
             return whereClauses;
         }
 
-        private void UpdateAncestors(Guid itemId, List<Guid> ancestorIds, SqliteConnection db, SqliteCommand deleteAncestorsStatement)
+        private void UpdateAncestors(Guid itemId, List<Guid> ancestorIds, ManagedConnection db, SqliteCommand deleteAncestorsStatement)
         {
             if (itemId.IsEmpty())
             {
@@ -4788,7 +4787,7 @@ AND Type = @InternalPersonType)");
 
             var list = new List<string>();
             using (new QueryTimeLogger(Logger, commandText))
-            using (var connection = GetConnection())
+            using (var connection = GetConnection(true))
             using (var statement = PrepareStatement(connection, commandText))
             {
                 foreach (var row in statement.ExecuteQuery())
@@ -4988,8 +4987,8 @@ AND Type = @InternalPersonType)");
             var list = new List<(BaseItem, ItemCounts)>();
             var result = new QueryResult<(BaseItem, ItemCounts)>();
             using (new QueryTimeLogger(Logger, commandText))
-            using (var connection = GetConnection())
-            using (var transaction = connection.BeginTransaction(deferred: true))
+            using (var connection = GetConnection(true))
+            using (var transaction = connection.BeginTransaction())
             {
                 if (!isReturningZeroItems)
                 {
@@ -5021,7 +5020,7 @@ AND Type = @InternalPersonType)");
 
                         foreach (var row in statement.ExecuteQuery())
                         {
-                            var item = GetItem(row, query, hasProgramAttributes, hasEpisodeAttributes, hasServiceName, hasStartDate, hasTrailerTypes, hasArtistFields, hasSeriesFields);
+                            var item = GetItem(row, query, hasProgramAttributes, hasEpisodeAttributes, hasServiceName, hasStartDate, hasTrailerTypes, hasArtistFields, hasSeriesFields, false);
                             if (item is not null)
                             {
                                 var countStartColumn = columns.Count - 1;
@@ -5149,7 +5148,7 @@ AND Type = @InternalPersonType)");
             return list;
         }
 
-        private void UpdateItemValues(Guid itemId, List<(int MagicNumber, string Value)> values, SqliteConnection db)
+        private void UpdateItemValues(Guid itemId, List<(int MagicNumber, string Value)> values, ManagedConnection db)
         {
             if (itemId.IsEmpty())
             {
@@ -5168,7 +5167,7 @@ AND Type = @InternalPersonType)");
             InsertItemValues(itemId, values, db);
         }
 
-        private void InsertItemValues(Guid id, List<(int MagicNumber, string Value)> values, SqliteConnection db)
+        private void InsertItemValues(Guid id, List<(int MagicNumber, string Value)> values, ManagedConnection db)
         {
             const int Limit = 100;
             var startIndex = 0;
@@ -5222,24 +5221,25 @@ AND Type = @InternalPersonType)");
                 throw new ArgumentNullException(nameof(itemId));
             }
 
-            ArgumentNullException.ThrowIfNull(people);
-
             CheckDisposed();
 
             using var connection = GetConnection();
             using var transaction = connection.BeginTransaction();
-            // First delete chapters
+            // Delete all existing people first
             using var command = connection.CreateCommand();
             command.CommandText = "delete from People where ItemId=@ItemId";
             command.TryBind("@ItemId", itemId);
             command.ExecuteNonQuery();
 
-            InsertPeople(itemId, people, connection);
+            if (people is not null)
+            {
+                InsertPeople(itemId, people, connection);
+            }
 
             transaction.Commit();
         }
 
-        private void InsertPeople(Guid id, List<PersonInfo> people, SqliteConnection db)
+        private void InsertPeople(Guid id, List<PersonInfo> people, ManagedConnection db)
         {
             const int Limit = 100;
             var startIndex = 0;
@@ -5335,7 +5335,7 @@ AND Type = @InternalPersonType)");
 
             cmdText += " order by StreamIndex ASC";
 
-            using (var connection = GetConnection())
+            using (var connection = GetConnection(true))
             {
                 var list = new List<MediaStream>();
 
@@ -5388,7 +5388,7 @@ AND Type = @InternalPersonType)");
             transaction.Commit();
         }
 
-        private void InsertMediaStreams(Guid id, IReadOnlyList<MediaStream> streams, SqliteConnection db)
+        private void InsertMediaStreams(Guid id, IReadOnlyList<MediaStream> streams, ManagedConnection db)
         {
             const int Limit = 10;
             var startIndex = 0;
@@ -5694,13 +5694,17 @@ AND Type = @InternalPersonType)");
 
             item.IsHearingImpaired = reader.TryGetBoolean(43, out var result) && result;
 
-            if (item.Type == MediaStreamType.Subtitle)
+            if (item.Type is MediaStreamType.Audio or MediaStreamType.Subtitle)
             {
-                item.LocalizedUndefined = _localization.GetLocalizedString("Undefined");
                 item.LocalizedDefault = _localization.GetLocalizedString("Default");
-                item.LocalizedForced = _localization.GetLocalizedString("Forced");
                 item.LocalizedExternal = _localization.GetLocalizedString("External");
-                item.LocalizedHearingImpaired = _localization.GetLocalizedString("HearingImpaired");
+
+                if (item.Type is MediaStreamType.Subtitle)
+                {
+                    item.LocalizedUndefined = _localization.GetLocalizedString("Undefined");
+                    item.LocalizedForced = _localization.GetLocalizedString("Forced");
+                    item.LocalizedHearingImpaired = _localization.GetLocalizedString("HearingImpaired");
+                }
             }
 
             return item;
@@ -5722,7 +5726,7 @@ AND Type = @InternalPersonType)");
             cmdText += " order by AttachmentIndex ASC";
 
             var list = new List<MediaAttachment>();
-            using (var connection = GetConnection())
+            using (var connection = GetConnection(true))
             using (var statement = PrepareStatement(connection, cmdText))
             {
                 statement.TryBind("@ItemId", query.ItemId);
@@ -5772,7 +5776,7 @@ AND Type = @InternalPersonType)");
         private void InsertMediaAttachments(
             Guid id,
             IReadOnlyList<MediaAttachment> attachments,
-            SqliteConnection db,
+            ManagedConnection db,
             CancellationToken cancellationToken)
         {
             const int InsertAtOnce = 10;

Emby.Server.Implementations/Data/SqliteUserDataRepository.cs

@@ -86,7 +86,7 @@ namespace Emby.Server.Implementations.Data
             }
         }
 
-        private void ImportUserIds(SqliteConnection db, IEnumerable<User> users)
+        private void ImportUserIds(ManagedConnection db, IEnumerable<User> users)
         {
             var userIdsWithUserData = GetAllUserIdsWithUserData(db);
 
@@ -107,7 +107,7 @@ namespace Emby.Server.Implementations.Data
             }
         }
 
-        private List<Guid> GetAllUserIdsWithUserData(SqliteConnection db)
+        private List<Guid> GetAllUserIdsWithUserData(ManagedConnection db)
         {
             var list = new List<Guid>();
 
@@ -176,7 +176,7 @@ namespace Emby.Server.Implementations.Data
             }
         }
 
-        private static void SaveUserData(SqliteConnection db, long internalUserId, string key, UserItemData userData)
+        private static void SaveUserData(ManagedConnection db, long internalUserId, string key, UserItemData userData)
         {
             using (var statement = db.PrepareStatement("replace into UserDatas (key, userId, rating,played,playCount,isFavorite,playbackPositionTicks,lastPlayedDate,AudioStreamIndex,SubtitleStreamIndex) values (@key, @userId, @rating,@played,@playCount,@isFavorite,@playbackPositionTicks,@lastPlayedDate,@AudioStreamIndex,@SubtitleStreamIndex)"))
             {
@@ -267,7 +267,7 @@ namespace Emby.Server.Implementations.Data
 
             ArgumentException.ThrowIfNullOrEmpty(key);
 
-            using (var connection = GetConnection())
+            using (var connection = GetConnection(true))
             {
                 using (var statement = connection.PrepareStatement("select key,userid,rating,played,playCount,isFavorite,playbackPositionTicks,lastPlayedDate,AudioStreamIndex,SubtitleStreamIndex from UserDatas where key =@Key and userId=@UserId"))
                 {

Emby.Server.Implementations/IO/ManagedFileSystem.cs

@@ -389,7 +389,7 @@ namespace Emby.Server.Implementations.IO
             var info = new FileInfo(path);
 
             if (info.Exists &&
-                ((info.Attributes & FileAttributes.Hidden) == FileAttributes.Hidden) != isHidden)
+                (info.Attributes & FileAttributes.Hidden) == FileAttributes.Hidden != isHidden)
             {
                 if (isHidden)
                 {
@@ -417,8 +417,8 @@ namespace Emby.Server.Implementations.IO
                 return;
             }
 
-            if (((info.Attributes & FileAttributes.ReadOnly) == FileAttributes.ReadOnly) == readOnly
-                && ((info.Attributes & FileAttributes.Hidden) == FileAttributes.Hidden) == isHidden)
+            if ((info.Attributes & FileAttributes.ReadOnly) == FileAttributes.ReadOnly == readOnly
+                && (info.Attributes & FileAttributes.Hidden) == FileAttributes.Hidden == isHidden)
             {
                 return;
             }

Emby.Server.Implementations/Library/LibraryManager.cs

@@ -1029,7 +1029,7 @@ namespace Emby.Server.Implementations.Library
             }
         }
 
-        private async Task ValidateTopLibraryFolders(CancellationToken cancellationToken, bool removeRoot = false)
+        public async Task ValidateTopLibraryFolders(CancellationToken cancellationToken, bool removeRoot = false)
         {
             await RootFolder.RefreshMetadata(cancellationToken).ConfigureAwait(false);
 
@@ -1884,7 +1884,7 @@ namespace Emby.Server.Implementations.Library
                     try
                     {
                         var index = item.GetImageIndex(img);
-                        image = await ConvertImageToLocal(item, img, index, removeOnFailure: true).ConfigureAwait(false);
+                        image = await ConvertImageToLocal(item, img, index, true).ConfigureAwait(false);
                     }
                     catch (ArgumentException)
                     {
@@ -2812,8 +2812,10 @@ namespace Emby.Server.Implementations.Library
             }
 
             _itemRepository.UpdatePeople(item.Id, people);
-
-            await SavePeopleMetadataAsync(people, cancellationToken).ConfigureAwait(false);
+            if (people is not null)
+            {
+                await SavePeopleMetadataAsync(people, cancellationToken).ConfigureAwait(false);
+            }
         }
 
         public async Task<ItemImageInfo> ConvertImageToLocal(BaseItem item, ItemImageInfo image, int imageIndex, bool removeOnFailure)

Emby.Server.Implementations/Library/Resolvers/Audio/MusicArtistResolver.cs

@@ -3,6 +3,7 @@
 using System;
 using System.Linq;
 using System.Threading.Tasks;
+using Emby.Naming.Audio;
 using Emby.Naming.Common;
 using Jellyfin.Data.Enums;
 using MediaBrowser.Controller.Entities.Audio;
@@ -85,6 +86,7 @@ namespace Emby.Server.Implementations.Library.Resolvers.Audio
             }
 
             var albumResolver = new MusicAlbumResolver(_logger, _namingOptions, _directoryService);
+            var albumParser = new AlbumParser(_namingOptions);
 
             var directories = args.FileSystemChildren.Where(i => i.IsDirectory);
 
@@ -100,6 +102,12 @@ namespace Emby.Server.Implementations.Library.Resolvers.Audio
                     }
                 }
 
+                // If the folder is a multi-disc folder, then it is not an artist folder
+                if (albumParser.IsMultiPart(fileSystemInfo.FullName))
+                {
+                    return;
+                }
+
                 // If we contain a music album assume we are an artist folder
                 if (albumResolver.IsMusicAlbum(fileSystemInfo.FullName, _directoryService))
                 {

Emby.Server.Implementations/Library/Resolvers/TV/SeasonResolver.cs

@@ -54,7 +54,8 @@ namespace Emby.Server.Implementations.Library.Resolvers.TV
                 {
                     IndexNumber = seasonParserResult.SeasonNumber,
                     SeriesId = series.Id,
-                    SeriesName = series.Name
+                    SeriesName = series.Name,
+                    Path = seasonParserResult.IsSeasonFolder ? path : null
                 };
 
                 if (!season.IndexNumber.HasValue || !seasonParserResult.IsSeasonFolder)
@@ -78,27 +79,16 @@ namespace Emby.Server.Implementations.Library.Resolvers.TV
                     }
                 }
 
-                if (season.IndexNumber.HasValue)
+                if (season.IndexNumber.HasValue && string.IsNullOrEmpty(season.Name))
                 {
                     var seasonNumber = season.IndexNumber.Value;
-                    if (string.IsNullOrEmpty(season.Name))
-                    {
-                        var seasonNames = series.GetSeasonNames();
-                        if (seasonNames.TryGetValue(seasonNumber, out var seasonName))
-                        {
-                            season.Name = seasonName;
-                        }
-                        else
-                        {
-                            season.Name = seasonNumber == 0 ?
-                                args.LibraryOptions.SeasonZeroDisplayName :
-                                string.Format(
-                                    CultureInfo.InvariantCulture,
-                                    _localization.GetLocalizedString("NameSeasonNumber"),
-                                    seasonNumber,
-                                    args.LibraryOptions.PreferredMetadataLanguage);
-                        }
-                    }
+                    season.Name = seasonNumber == 0 ?
+                        args.LibraryOptions.SeasonZeroDisplayName :
+                        string.Format(
+                            CultureInfo.InvariantCulture,
+                            _localization.GetLocalizedString("NameSeasonNumber"),
+                            seasonNumber,
+                            args.LibraryOptions.PreferredMetadataLanguage);
                 }
 
                 return season;

Emby.Server.Implementations/Localization/Ratings/au.csv

@@ -1,11 +1,11 @@
 Exempt,0
 G,0
 7+,7
+PG,15
 M,15
 MA,15
 MA15+,15
 MA 15+,15
-PG,16
 16+,16
 R,18
 R18+,18

Emby.Server.Implementations/Playlists/PlaylistManager.cs

@@ -170,8 +170,13 @@ namespace Emby.Server.Implementations.Playlists
         private List<Playlist> GetUserPlaylists(Guid userId)
         {
             var user = _userManager.GetUserById(userId);
+            var playlistsFolder = GetPlaylistsFolder(userId);
+            if (playlistsFolder is null)
+            {
+                return [];
+            }
 
-            return GetPlaylistsFolder(userId).GetChildren(user, true).OfType<Playlist>().ToList();
+            return playlistsFolder.GetChildren(user, true).OfType<Playlist>().ToList();
         }
 
         private static string GetTargetPath(string path)
@@ -184,11 +189,11 @@ namespace Emby.Server.Implementations.Playlists
             return path;
         }
 
-        private IReadOnlyList<BaseItem> GetPlaylistItems(IEnumerable<Guid> itemIds, MediaType playlistMediaType, User user, DtoOptions options)
+        private IReadOnlyList<BaseItem> GetPlaylistItems(IEnumerable<Guid> itemIds, User user, DtoOptions options)
         {
             var items = itemIds.Select(_libraryManager.GetItemById).Where(i => i is not null);
 
-            return Playlist.GetPlaylistItems(playlistMediaType, items, user, options);
+            return Playlist.GetPlaylistItems(items, user, options);
         }
 
         public Task AddItemToPlaylistAsync(Guid playlistId, IReadOnlyCollection<Guid> itemIds, Guid userId)
@@ -208,7 +213,7 @@ namespace Emby.Server.Implementations.Playlists
                 ?? throw new ArgumentException("No Playlist exists with Id " + playlistId);
 
             // Retrieve all the items to be added to the playlist
-            var newItems = GetPlaylistItems(newItemIds, playlist.MediaType, user, options)
+            var newItems = GetPlaylistItems(newItemIds, user, options)
                 .Where(i => i.SupportsAddingToPlaylist);
 
             // Filter out duplicate items, if necessary

Emby.Server.Implementations/ScheduledTasks/Tasks/AudioNormalizationTask.cs

@@ -8,6 +8,7 @@ using System.Text.RegularExpressions;
 using System.Threading;
 using System.Threading.Tasks;
 using Jellyfin.Data.Enums;
+using Jellyfin.Extensions;
 using MediaBrowser.Common.Configuration;
 using MediaBrowser.Controller.Entities;
 using MediaBrowser.Controller.Entities.Audio;
@@ -69,7 +70,7 @@ public partial class AudioNormalizationTask : IScheduledTask
     /// <inheritdoc />
     public string Key => "AudioNormalization";
 
-    [GeneratedRegex(@"I:\s+(.*?)\s+LUFS")]
+    [GeneratedRegex(@"^\s+I:\s+(.*?)\s+LUFS")]
     private static partial Regex LUFSRegex();
 
     /// <inheritdoc />
@@ -105,13 +106,20 @@ public partial class AudioNormalizationTask : IScheduledTask
                     continue;
                 }
 
-                var tempFile = Path.Join(_configurationManager.GetTranscodePath(), Guid.NewGuid() + ".concat");
+                _logger.LogInformation("Calculating LUFS for album: {Album} with id: {Id}", a.Name, a.Id);
+                var tempFile = Path.Join(_configurationManager.GetTranscodePath(), a.Id + ".concat");
                 var inputLines = albumTracks.Select(x => string.Format(CultureInfo.InvariantCulture, "file '{0}'", x.Path.Replace("'", @"'\''", StringComparison.Ordinal)));
                 await File.WriteAllLinesAsync(tempFile, inputLines, cancellationToken).ConfigureAwait(false);
-                a.LUFS = await CalculateLUFSAsync(
-                    string.Format(CultureInfo.InvariantCulture, "-f concat -safe 0 -i \"{0}\"", tempFile),
-                    cancellationToken).ConfigureAwait(false);
-                File.Delete(tempFile);
+                try
+                {
+                    a.LUFS = await CalculateLUFSAsync(
+                        string.Format(CultureInfo.InvariantCulture, "-f concat -safe 0 -i \"{0}\"", tempFile),
+                        cancellationToken).ConfigureAwait(false);
+                }
+                finally
+                {
+                    File.Delete(tempFile);
+                }
             }
 
             _itemRepository.SaveItems(albums, cancellationToken);
@@ -179,16 +187,17 @@ public partial class AudioNormalizationTask : IScheduledTask
             }
 
             using var reader = process.StandardError;
-            var output = await reader.ReadToEndAsync(cancellationToken).ConfigureAwait(false);
-            cancellationToken.ThrowIfCancellationRequested();
-            MatchCollection split = LUFSRegex().Matches(output);
-
-            if (split.Count != 0)
+            await foreach (var line in reader.ReadAllLinesAsync(cancellationToken))
             {
-                return float.Parse(split[0].Groups[1].ValueSpan, CultureInfo.InvariantCulture.NumberFormat);
+                Match match = LUFSRegex().Match(line);
+
+                if (match.Success)
+                {
+                    return float.Parse(match.Groups[1].ValueSpan, CultureInfo.InvariantCulture.NumberFormat);
+                }
             }
 
-            _logger.LogError("Failed to find LUFS value in output:\n{Output}", output);
+            _logger.LogError("Failed to find LUFS value in output");
             return null;
         }
     }

Emby.Server.Implementations/ScheduledTasks/Tasks/CleanupCollectionAndPlaylistPathsTask.cs

@@ -127,15 +127,8 @@ public class CleanupCollectionAndPlaylistPathsTask : IScheduledTask
         {
             _logger.LogDebug("Updating {FolderName}", folder.Name);
             folder.LinkedChildren = folder.LinkedChildren.Except(itemsToRemove).ToArray();
+            _providerManager.SaveMetadataAsync(folder, ItemUpdateType.MetadataEdit);
             folder.UpdateToRepositoryAsync(ItemUpdateType.MetadataEdit, cancellationToken);
-
-            _providerManager.QueueRefresh(
-                folder.Id,
-                new MetadataRefreshOptions(new DirectoryService(_fileSystem))
-                {
-                    ForceSave = true
-                },
-                RefreshPriority.High);
         }
     }
 

Emby.Server.Implementations/ScheduledTasks/Tasks/DeleteCacheFileTask.cs

@@ -5,6 +5,7 @@ using System.Linq;
 using System.Threading;
 using System.Threading.Tasks;
 using MediaBrowser.Common.Configuration;
+using MediaBrowser.Controller.IO;
 using MediaBrowser.Model.Globalization;
 using MediaBrowser.Model.IO;
 using MediaBrowser.Model.Tasks;
@@ -133,53 +134,14 @@ namespace Emby.Server.Implementations.ScheduledTasks.Tasks
 
                 cancellationToken.ThrowIfCancellationRequested();
 
-                DeleteFile(file.FullName);
+                FileSystemHelper.DeleteFile(_fileSystem, file.FullName, _logger);
 
                 index++;
             }
 
-            DeleteEmptyFolders(directory);
+            FileSystemHelper.DeleteEmptyFolders(_fileSystem, directory, _logger);
 
             progress.Report(100);
         }
-
-        private void DeleteEmptyFolders(string parent)
-        {
-            foreach (var directory in _fileSystem.GetDirectoryPaths(parent))
-            {
-                DeleteEmptyFolders(directory);
-                if (!_fileSystem.GetFileSystemEntryPaths(directory).Any())
-                {
-                    try
-                    {
-                        Directory.Delete(directory, false);
-                    }
-                    catch (UnauthorizedAccessException ex)
-                    {
-                        _logger.LogError(ex, "Error deleting directory {Path}", directory);
-                    }
-                    catch (IOException ex)
-                    {
-                        _logger.LogError(ex, "Error deleting directory {Path}", directory);
-                    }
-                }
-            }
-        }
-
-        private void DeleteFile(string path)
-        {
-            try
-            {
-                _fileSystem.DeleteFile(path);
-            }
-            catch (UnauthorizedAccessException ex)
-            {
-                _logger.LogError(ex, "Error deleting file {Path}", path);
-            }
-            catch (IOException ex)
-            {
-                _logger.LogError(ex, "Error deleting file {Path}", path);
-            }
-        }
     }
 }

Emby.Server.Implementations/ScheduledTasks/Tasks/DeleteTranscodeFileTask.cs

@@ -1,10 +1,10 @@
 using System;
 using System.Collections.Generic;
-using System.IO;
 using System.Linq;
 using System.Threading;
 using System.Threading.Tasks;
 using MediaBrowser.Common.Configuration;
+using MediaBrowser.Controller.IO;
 using MediaBrowser.Model.Globalization;
 using MediaBrowser.Model.IO;
 using MediaBrowser.Model.Tasks;
@@ -113,53 +113,14 @@ namespace Emby.Server.Implementations.ScheduledTasks.Tasks
 
                 cancellationToken.ThrowIfCancellationRequested();
 
-                DeleteFile(file.FullName);
+                FileSystemHelper.DeleteFile(_fileSystem, file.FullName, _logger);
 
                 index++;
             }
 
-            DeleteEmptyFolders(directory);
+            FileSystemHelper.DeleteEmptyFolders(_fileSystem, directory, _logger);
 
             progress.Report(100);
         }
-
-        private void DeleteEmptyFolders(string parent)
-        {
-            foreach (var directory in _fileSystem.GetDirectoryPaths(parent))
-            {
-                DeleteEmptyFolders(directory);
-                if (!_fileSystem.GetFileSystemEntryPaths(directory).Any())
-                {
-                    try
-                    {
-                        Directory.Delete(directory, false);
-                    }
-                    catch (UnauthorizedAccessException ex)
-                    {
-                        _logger.LogError(ex, "Error deleting directory {Path}", directory);
-                    }
-                    catch (IOException ex)
-                    {
-                        _logger.LogError(ex, "Error deleting directory {Path}", directory);
-                    }
-                }
-            }
-        }
-
-        private void DeleteFile(string path)
-        {
-            try
-            {
-                _fileSystem.DeleteFile(path);
-            }
-            catch (UnauthorizedAccessException ex)
-            {
-                _logger.LogError(ex, "Error deleting file {Path}", path);
-            }
-            catch (IOException ex)
-            {
-                _logger.LogError(ex, "Error deleting file {Path}", path);
-            }
-        }
     }
 }

Emby.Server.Implementations/Session/SessionManager.cs

@@ -237,7 +237,7 @@ namespace Emby.Server.Implementations.Session
             ArgumentException.ThrowIfNullOrEmpty(deviceId);
 
             var activityDate = DateTime.UtcNow;
-            var session = await GetSessionInfo(appName, appVersion, deviceId, deviceName, remoteEndPoint, user).ConfigureAwait(false);
+            var session = GetSessionInfo(appName, appVersion, deviceId, deviceName, remoteEndPoint, user);
             var lastActivityDate = session.LastActivityDate;
             session.LastActivityDate = activityDate;
 
@@ -435,7 +435,7 @@ namespace Emby.Server.Implementations.Session
         /// <param name="remoteEndPoint">The remote end point.</param>
         /// <param name="user">The user.</param>
         /// <returns>SessionInfo.</returns>
-        private async Task<SessionInfo> GetSessionInfo(
+        private SessionInfo GetSessionInfo(
             string appName,
             string appVersion,
             string deviceId,
@@ -453,7 +453,7 @@ namespace Emby.Server.Implementations.Session
 
             if (!_activeConnections.TryGetValue(key, out var sessionInfo))
             {
-                sessionInfo = await CreateSession(key, appName, appVersion, deviceId, deviceName, remoteEndPoint, user).ConfigureAwait(false);
+                sessionInfo = CreateSession(key, appName, appVersion, deviceId, deviceName, remoteEndPoint, user);
                 _activeConnections[key] = sessionInfo;
             }
 
@@ -478,7 +478,7 @@ namespace Emby.Server.Implementations.Session
             return sessionInfo;
         }
 
-        private async Task<SessionInfo> CreateSession(
+        private SessionInfo CreateSession(
             string key,
             string appName,
             string appVersion,
@@ -508,7 +508,7 @@ namespace Emby.Server.Implementations.Session
                 deviceName = "Network Device";
             }
 
-            var deviceOptions = await _deviceManager.GetDeviceOptions(deviceId).ConfigureAwait(false);
+            var deviceOptions = _deviceManager.GetDeviceOptions(deviceId);
             if (string.IsNullOrEmpty(deviceOptions.CustomName))
             {
                 sessionInfo.DeviceName = deviceName;
@@ -1202,7 +1202,8 @@ namespace Emby.Server.Implementations.Session
                             new DtoOptions(false)
                             {
                                 EnableImages = false
-                            })
+                            },
+                            user.DisplayMissingEpisodes)
                         .Where(i => !i.IsVirtualItem)
                         .SkipWhile(i => !i.Id.Equals(episode.Id))
                         .ToList();
@@ -1296,7 +1297,7 @@ namespace Emby.Server.Implementations.Session
             return new[] { item };
         }
 
-        private IEnumerable<BaseItem> TranslateItemForInstantMix(Guid id, User user)
+        private List<BaseItem> TranslateItemForInstantMix(Guid id, User user)
         {
             var item = _libraryManager.GetItemById(id);
 
@@ -1306,7 +1307,7 @@ namespace Emby.Server.Implementations.Session
                 return new List<BaseItem>();
             }
 
-            return _musicManager.GetInstantMixFromItem(item, user, new DtoOptions(false) { EnableImages = false });
+            return _musicManager.GetInstantMixFromItem(item, user, new DtoOptions(false) { EnableImages = false }).ToList();
         }
 
         /// <inheritdoc />
@@ -1519,12 +1520,12 @@ namespace Emby.Server.Implementations.Session
             // This should be validated above, but if it isn't don't delete all tokens.
             ArgumentException.ThrowIfNullOrEmpty(deviceId);
 
-            var existing = (await _deviceManager.GetDevices(
+            var existing = _deviceManager.GetDevices(
                 new DeviceQuery
                 {
                     DeviceId = deviceId,
                     UserId = user.Id
-                }).ConfigureAwait(false)).Items;
+                }).Items;
 
             foreach (var auth in existing)
             {
@@ -1552,12 +1553,12 @@ namespace Emby.Server.Implementations.Session
 
             ArgumentException.ThrowIfNullOrEmpty(accessToken);
 
-            var existing = (await _deviceManager.GetDevices(
+            var existing = _deviceManager.GetDevices(
                 new DeviceQuery
                 {
                     Limit = 1,
                     AccessToken = accessToken
-                }).ConfigureAwait(false)).Items;
+                }).Items;
 
             if (existing.Count > 0)
             {
@@ -1596,10 +1597,10 @@ namespace Emby.Server.Implementations.Session
         {
             CheckDisposed();
 
-            var existing = await _deviceManager.GetDevices(new DeviceQuery
+            var existing = _deviceManager.GetDevices(new DeviceQuery
             {
                 UserId = userId
-            }).ConfigureAwait(false);
+            });
 
             foreach (var info in existing.Items)
             {
@@ -1786,11 +1787,11 @@ namespace Emby.Server.Implementations.Session
         /// <inheritdoc />
         public async Task<SessionInfo> GetSessionByAuthenticationToken(string token, string deviceId, string remoteEndpoint)
         {
-            var items = (await _deviceManager.GetDevices(new DeviceQuery
+            var items = _deviceManager.GetDevices(new DeviceQuery
             {
                 AccessToken = token,
                 Limit = 1
-            }).ConfigureAwait(false)).Items;
+            }).Items;
 
             if (items.Count == 0)
             {

Jellyfin.Api/Auth/FirstTimeSetupPolicy/FirstTimeSetupHandler.cs

@@ -1,5 +1,6 @@
 using System.Threading.Tasks;
 using Jellyfin.Api.Constants;
+using Jellyfin.Api.Extensions;
 using MediaBrowser.Common.Configuration;
 using Microsoft.AspNetCore.Authorization;
 
@@ -24,24 +25,31 @@ namespace Jellyfin.Api.Auth.FirstTimeSetupPolicy
         /// <inheritdoc />
         protected override Task HandleRequirementAsync(AuthorizationHandlerContext context, FirstTimeSetupRequirement requirement)
         {
+            // Succeed if the startup wizard / first time setup is not complete
             if (!_configurationManager.CommonConfiguration.IsStartupWizardCompleted)
             {
                 context.Succeed(requirement);
             }
-            else if (requirement.RequireAdmin && !context.User.IsInRole(UserRoles.Administrator))
+
+            // Succeed if user is admin
+            else if (context.User.IsInRole(UserRoles.Administrator))
             {
-                context.Fail();
-            }
-            else if (!requirement.RequireAdmin && context.User.IsInRole(UserRoles.Guest))
-            {
-                context.Fail();
-            }
-            else
-            {
-                // Any user-specific checks are handled in the DefaultAuthorizationHandler.
                 context.Succeed(requirement);
             }
 
+            // Fail if admin is required and user is not admin
+            else if (requirement.RequireAdmin)
+            {
+                context.Fail();
+            }
+
+            // Succeed if admin is not required and user is not guest
+            else if (context.User.IsInRole(UserRoles.User))
+            {
+                context.Succeed(requirement);
+            }
+
+            // Any user-specific checks are handled in the DefaultAuthorizationHandler.
             return Task.CompletedTask;
         }
     }

Jellyfin.Api/Controllers/DevicesController.cs

@@ -47,10 +47,10 @@ public class DevicesController : BaseJellyfinApiController
     /// <returns>An <see cref="OkResult"/> containing the list of devices.</returns>
     [HttpGet]
     [ProducesResponseType(StatusCodes.Status200OK)]
-    public async Task<ActionResult<QueryResult<DeviceInfo>>> GetDevices([FromQuery] Guid? userId)
+    public ActionResult<QueryResult<DeviceInfo>> GetDevices([FromQuery] Guid? userId)
     {
         userId = RequestHelpers.GetUserId(User, userId);
-        return await _deviceManager.GetDevicesForUser(userId).ConfigureAwait(false);
+        return _deviceManager.GetDevicesForUser(userId);
     }
 
     /// <summary>
@@ -63,9 +63,9 @@ public class DevicesController : BaseJellyfinApiController
     [HttpGet("Info")]
     [ProducesResponseType(StatusCodes.Status200OK)]
     [ProducesResponseType(StatusCodes.Status404NotFound)]
-    public async Task<ActionResult<DeviceInfo>> GetDeviceInfo([FromQuery, Required] string id)
+    public ActionResult<DeviceInfo> GetDeviceInfo([FromQuery, Required] string id)
     {
-        var deviceInfo = await _deviceManager.GetDevice(id).ConfigureAwait(false);
+        var deviceInfo = _deviceManager.GetDevice(id);
         if (deviceInfo is null)
         {
             return NotFound();
@@ -84,9 +84,9 @@ public class DevicesController : BaseJellyfinApiController
     [HttpGet("Options")]
     [ProducesResponseType(StatusCodes.Status200OK)]
     [ProducesResponseType(StatusCodes.Status404NotFound)]
-    public async Task<ActionResult<DeviceOptions>> GetDeviceOptions([FromQuery, Required] string id)
+    public ActionResult<DeviceOptions> GetDeviceOptions([FromQuery, Required] string id)
     {
-        var deviceInfo = await _deviceManager.GetDeviceOptions(id).ConfigureAwait(false);
+        var deviceInfo = _deviceManager.GetDeviceOptions(id);
         if (deviceInfo is null)
         {
             return NotFound();
@@ -124,13 +124,13 @@ public class DevicesController : BaseJellyfinApiController
     [ProducesResponseType(StatusCodes.Status404NotFound)]
     public async Task<ActionResult> DeleteDevice([FromQuery, Required] string id)
     {
-        var existingDevice = await _deviceManager.GetDevice(id).ConfigureAwait(false);
+        var existingDevice = _deviceManager.GetDevice(id);
         if (existingDevice is null)
         {
             return NotFound();
         }
 
-        var sessions = await _deviceManager.GetDevices(new DeviceQuery { DeviceId = id }).ConfigureAwait(false);
+        var sessions = _deviceManager.GetDevices(new DeviceQuery { DeviceId = id });
 
         foreach (var session in sessions.Items)
         {

Jellyfin.Api/Controllers/ImageController.cs

@@ -2089,6 +2089,8 @@ public class ImageController : BaseJellyfinApiController
         Response.Headers.Append(HeaderNames.Age, Convert.ToInt64((DateTime.UtcNow - dateImageModified).TotalSeconds).ToString(CultureInfo.InvariantCulture));
         Response.Headers.Append(HeaderNames.Vary, HeaderNames.Accept);
 
+        Response.Headers.ContentDisposition = "attachment";
+
         if (disableCaching)
         {
             Response.Headers.Append(HeaderNames.CacheControl, "no-cache, no-store, must-revalidate");

Jellyfin.Api/Controllers/ItemRefreshController.cs

@@ -80,7 +80,8 @@ public class ItemRefreshController : BaseJellyfinApiController
                 || imageRefreshMode == MetadataRefreshMode.FullRefresh
                 || replaceAllImages
                 || replaceAllMetadata,
-            IsAutomated = false
+            IsAutomated = false,
+            RemoveOldMetadata = replaceAllMetadata
         };
 
         _providerManager.QueueRefresh(item.Id, refreshOptions, RefreshPriority.High);

Jellyfin.Api/Controllers/ItemUpdateController.cs

@@ -290,17 +290,35 @@ public class ItemUpdateController : BaseJellyfinApiController
         {
             foreach (var season in rseries.Children.OfType<Season>())
             {
-                season.OfficialRating = request.OfficialRating;
+                if (!season.LockedFields.Contains(MetadataField.OfficialRating))
+                {
+                    season.OfficialRating = request.OfficialRating;
+                }
+
                 season.CustomRating = request.CustomRating;
-                season.Tags = season.Tags.Concat(addedTags).Except(removedTags).Distinct().ToArray();
+
+                if (!season.LockedFields.Contains(MetadataField.Tags))
+                {
+                    season.Tags = season.Tags.Concat(addedTags).Except(removedTags).Distinct().ToArray();
+                }
+
                 season.OnMetadataChanged();
                 await season.UpdateToRepositoryAsync(ItemUpdateType.MetadataEdit, CancellationToken.None).ConfigureAwait(false);
 
                 foreach (var ep in season.Children.OfType<Episode>())
                 {
-                    ep.OfficialRating = request.OfficialRating;
+                    if (!ep.LockedFields.Contains(MetadataField.OfficialRating))
+                    {
+                        ep.OfficialRating = request.OfficialRating;
+                    }
+
                     ep.CustomRating = request.CustomRating;
-                    ep.Tags = ep.Tags.Concat(addedTags).Except(removedTags).Distinct().ToArray();
+
+                    if (!ep.LockedFields.Contains(MetadataField.Tags))
+                    {
+                        ep.Tags = ep.Tags.Concat(addedTags).Except(removedTags).Distinct().ToArray();
+                    }
+
                     ep.OnMetadataChanged();
                     await ep.UpdateToRepositoryAsync(ItemUpdateType.MetadataEdit, CancellationToken.None).ConfigureAwait(false);
                 }
@@ -310,9 +328,18 @@ public class ItemUpdateController : BaseJellyfinApiController
         {
             foreach (var ep in season.Children.OfType<Episode>())
             {
-                ep.OfficialRating = request.OfficialRating;
+                if (!ep.LockedFields.Contains(MetadataField.OfficialRating))
+                {
+                    ep.OfficialRating = request.OfficialRating;
+                }
+
                 ep.CustomRating = request.CustomRating;
-                ep.Tags = ep.Tags.Concat(addedTags).Except(removedTags).Distinct().ToArray();
+
+                if (!ep.LockedFields.Contains(MetadataField.Tags))
+                {
+                    ep.Tags = ep.Tags.Concat(addedTags).Except(removedTags).Distinct().ToArray();
+                }
+
                 ep.OnMetadataChanged();
                 await ep.UpdateToRepositoryAsync(ItemUpdateType.MetadataEdit, CancellationToken.None).ConfigureAwait(false);
             }
@@ -321,9 +348,18 @@ public class ItemUpdateController : BaseJellyfinApiController
         {
             foreach (BaseItem track in album.Children)
             {
-                track.OfficialRating = request.OfficialRating;
+                if (!track.LockedFields.Contains(MetadataField.OfficialRating))
+                {
+                    track.OfficialRating = request.OfficialRating;
+                }
+
                 track.CustomRating = request.CustomRating;
-                track.Tags = track.Tags.Concat(addedTags).Except(removedTags).Distinct().ToArray();
+
+                if (!track.LockedFields.Contains(MetadataField.Tags))
+                {
+                    track.Tags = track.Tags.Concat(addedTags).Except(removedTags).Distinct().ToArray();
+                }
+
                 track.OnMetadataChanged();
                 await track.UpdateToRepositoryAsync(ItemUpdateType.MetadataEdit, CancellationToken.None).ConfigureAwait(false);
             }

Jellyfin.Api/Controllers/LibraryStructureController.cs

@@ -180,7 +180,21 @@ public class LibraryStructureController : BaseJellyfinApiController
                 // No need to start if scanning the library because it will handle it
                 if (refreshLibrary)
                 {
-                    await _libraryManager.ValidateMediaLibrary(new Progress<double>(), CancellationToken.None).ConfigureAwait(false);
+                    await _libraryManager.ValidateTopLibraryFolders(CancellationToken.None, true).ConfigureAwait(false);
+                    var newLib = _libraryManager.GetUserRootFolder().Children.FirstOrDefault(f => f.Path.Equals(newPath, StringComparison.OrdinalIgnoreCase));
+                    if (newLib is CollectionFolder folder)
+                    {
+                        foreach (var child in folder.GetPhysicalFolders())
+                        {
+                            await child.RefreshMetadata(CancellationToken.None).ConfigureAwait(false);
+                            await child.ValidateChildren(new Progress<double>(), CancellationToken.None).ConfigureAwait(false);
+                        }
+                    }
+                    else
+                    {
+                        // We don't know if this one can be validated individually, trigger a new validation
+                        await _libraryManager.ValidateMediaLibrary(new Progress<double>(), CancellationToken.None).ConfigureAwait(false);
+                    }
                 }
                 else
                 {
@@ -319,7 +333,7 @@ public class LibraryStructureController : BaseJellyfinApiController
     public ActionResult UpdateLibraryOptions(
         [FromBody] UpdateLibraryOptionsDto request)
     {
-        var item = _libraryManager.GetItemById<CollectionFolder>(request.Id, User.GetUserId());
+        var item = _libraryManager.GetItemById<CollectionFolder>(request.Id);
         if (item is null)
         {
             return NotFound();

Jellyfin.Api/Controllers/PluginsController.cs

@@ -233,6 +233,8 @@ public class PluginsController : BaseJellyfinApiController
             return NotFound();
         }
 
+        Response.Headers.ContentDisposition = "attachment";
+
         imagePath = Path.Combine(plugin.Path, plugin.Manifest.ImagePath);
         return PhysicalFile(imagePath, MimeTypes.GetMimeType(imagePath));
     }

Jellyfin.Api/Controllers/TrickplayController.cs

@@ -95,6 +95,7 @@ public class TrickplayController : BaseJellyfinApiController
         var path = _trickplayManager.GetTrickplayTilePath(item, width, index);
         if (System.IO.File.Exists(path))
         {
+            Response.Headers.ContentDisposition = "attachment";
             return PhysicalFile(path, MediaTypeNames.Image.Jpeg);
         }
 

Jellyfin.Api/Controllers/TvShowsController.cs

@@ -231,6 +231,7 @@ public class TvShowsController : BaseJellyfinApiController
         var dtoOptions = new DtoOptions { Fields = fields }
             .AddClientFields(User)
             .AddAdditionalDtoOptions(enableImages, enableUserData, imageTypeLimit, enableImageTypes);
+        var shouldIncludeMissingEpisodes = (user is not null && user.DisplayMissingEpisodes) || User.GetIsApiKey();
 
         if (seasonId.HasValue) // Season id was supplied. Get episodes by season id.
         {
@@ -240,7 +241,7 @@ public class TvShowsController : BaseJellyfinApiController
                 return NotFound("No season exists with Id " + seasonId);
             }
 
-            episodes = seasonItem.GetEpisodes(user, dtoOptions);
+            episodes = seasonItem.GetEpisodes(user, dtoOptions, shouldIncludeMissingEpisodes);
         }
         else if (season.HasValue) // Season number was supplied. Get episodes by season number
         {
@@ -256,7 +257,7 @@ public class TvShowsController : BaseJellyfinApiController
 
             episodes = seasonItem is null ?
                 new List<BaseItem>()
-                : ((Season)seasonItem).GetEpisodes(user, dtoOptions);
+                : ((Season)seasonItem).GetEpisodes(user, dtoOptions, shouldIncludeMissingEpisodes);
         }
         else // No season number or season id was supplied. Returning all episodes.
         {
@@ -265,7 +266,7 @@ public class TvShowsController : BaseJellyfinApiController
                 return NotFound("Series not found");
             }
 
-            episodes = series.GetEpisodes(user, dtoOptions).ToList();
+            episodes = series.GetEpisodes(user, dtoOptions, shouldIncludeMissingEpisodes).ToList();
         }
 
         // Filter after the fact in case the ui doesn't want them

Jellyfin.Api/Helpers/MediaInfoHelper.cs

@@ -385,19 +385,6 @@ public class MediaInfoHelper
     /// <returns>A <see cref="Task"/> containing the <see cref="LiveStreamResponse"/>.</returns>
     public async Task<LiveStreamResponse> OpenMediaSource(HttpContext httpContext, LiveStreamRequest request)
     {
-        // Enforce more restrictive transcoding profile for LiveTV due to compatability reasons
-        // Cap the MaxStreamingBitrate to 20Mbps, because we are unable to reliably probe source bitrate,
-        // which will cause the client to request extremely high bitrate that may fail the player/encoder
-        request.MaxStreamingBitrate = request.MaxStreamingBitrate > 20000000 ? 20000000 : request.MaxStreamingBitrate;
-
-        if (request.DeviceProfile is not null)
-        {
-            // Remove all fmp4 transcoding profiles, because it causes playback error and/or A/V sync issues
-            // Notably: Some channels won't play on FireFox and LG webOs
-            // Some channels from HDHomerun will experience A/V sync issues
-            request.DeviceProfile.TranscodingProfiles = request.DeviceProfile.TranscodingProfiles.Where(p => !string.Equals(p.Container, "mp4", StringComparison.OrdinalIgnoreCase)).ToArray();
-        }
-
         var result = await _mediaSourceManager.OpenLiveStream(request, CancellationToken.None).ConfigureAwait(false);
 
         var profile = request.DeviceProfile;

Jellyfin.Api/Helpers/StreamingHelpers.cs

@@ -142,6 +142,25 @@ public static class StreamingHelpers
         }
         else
         {
+            // Enforce more restrictive transcoding profile for LiveTV due to compatability reasons
+            // Cap the MaxStreamingBitrate to 30Mbps, because we are unable to reliably probe source bitrate,
+            // which will cause the client to request extremely high bitrate that may fail the player/encoder
+            streamingRequest.VideoBitRate = streamingRequest.VideoBitRate > 30000000 ? 30000000 : streamingRequest.VideoBitRate;
+
+            if (streamingRequest.SegmentContainer is not null)
+            {
+                // Remove all fmp4 transcoding profiles, because it causes playback error and/or A/V sync issues
+                // Notably: Some channels won't play on FireFox and LG webOS
+                // Some channels from HDHomerun will experience A/V sync issues
+                streamingRequest.SegmentContainer = "ts";
+                streamingRequest.VideoCodec = "h264";
+                streamingRequest.AudioCodec = "aac";
+                state.SupportedVideoCodecs = ["h264"];
+                state.Request.VideoCodec = "h264";
+                state.SupportedAudioCodecs = ["aac"];
+                state.Request.AudioCodec = "aac";
+            }
+
             var liveStreamInfo = await mediaSourceManager.GetLiveStreamWithDirectStreamProvider(streamingRequest.LiveStreamId, cancellationToken).ConfigureAwait(false);
             mediaSource = liveStreamInfo.Item1;
             state.DirectStreamProvider = liveStreamInfo.Item2;

Jellyfin.Data/Jellyfin.Data.csproj

@@ -18,7 +18,7 @@
   <PropertyGroup>
     <Authors>Jellyfin Contributors</Authors>
     <PackageId>Jellyfin.Data</PackageId>
-    <VersionPrefix>10.9.3</VersionPrefix>
+    <VersionPrefix>10.9.11</VersionPrefix>
     <RepositoryUrl>https://github.com/jellyfin/jellyfin</RepositoryUrl>
     <PackageLicenseExpression>GPL-3.0-only</PackageLicenseExpression>
   </PropertyGroup>

Jellyfin.Server.Implementations/Devices/DeviceManager.cs

@@ -27,6 +27,8 @@ namespace Jellyfin.Server.Implementations.Devices
         private readonly IDbContextFactory<JellyfinDbContext> _dbProvider;
         private readonly IUserManager _userManager;
         private readonly ConcurrentDictionary<string, ClientCapabilities> _capabilitiesMap = new();
+        private readonly ConcurrentDictionary<int, Device> _devices;
+        private readonly ConcurrentDictionary<string, DeviceOptions> _deviceOptions;
 
         /// <summary>
         /// Initializes a new instance of the <see cref="DeviceManager"/> class.
@@ -37,6 +39,23 @@ namespace Jellyfin.Server.Implementations.Devices
         {
             _dbProvider = dbProvider;
             _userManager = userManager;
+            _devices = new ConcurrentDictionary<int, Device>();
+            _deviceOptions = new ConcurrentDictionary<string, DeviceOptions>();
+
+            using var dbContext = _dbProvider.CreateDbContext();
+            foreach (var device in dbContext.Devices
+                         .OrderBy(d => d.Id)
+                         .AsEnumerable())
+            {
+                _devices.TryAdd(device.Id, device);
+            }
+
+            foreach (var deviceOption in dbContext.DeviceOptions
+                         .OrderBy(d => d.Id)
+                         .AsEnumerable())
+            {
+                _deviceOptions.TryAdd(deviceOption.DeviceId, deviceOption);
+            }
         }
 
         /// <inheritdoc />
@@ -66,6 +85,8 @@ namespace Jellyfin.Server.Implementations.Devices
                 await dbContext.SaveChangesAsync().ConfigureAwait(false);
             }
 
+            _deviceOptions[deviceId] = deviceOptions;
+
             DeviceOptionsUpdated?.Invoke(this, new GenericEventArgs<Tuple<string, DeviceOptions>>(new Tuple<string, DeviceOptions>(deviceId, deviceOptions)));
         }
 
@@ -76,25 +97,17 @@ namespace Jellyfin.Server.Implementations.Devices
             await using (dbContext.ConfigureAwait(false))
             {
                 dbContext.Devices.Add(device);
-
                 await dbContext.SaveChangesAsync().ConfigureAwait(false);
+                _devices.TryAdd(device.Id, device);
             }
 
             return device;
         }
 
         /// <inheritdoc />
-        public async Task<DeviceOptions> GetDeviceOptions(string deviceId)
+        public DeviceOptions GetDeviceOptions(string deviceId)
         {
-            var dbContext = await _dbProvider.CreateDbContextAsync().ConfigureAwait(false);
-            DeviceOptions? deviceOptions;
-            await using (dbContext.ConfigureAwait(false))
-            {
-                deviceOptions = await dbContext.DeviceOptions
-                    .AsNoTracking()
-                    .FirstOrDefaultAsync(d => d.DeviceId == deviceId)
-                    .ConfigureAwait(false);
-            }
+            _deviceOptions.TryGetValue(deviceId, out var deviceOptions);
 
             return deviceOptions ?? new DeviceOptions(deviceId);
         }
@@ -108,57 +121,43 @@ namespace Jellyfin.Server.Implementations.Devices
         }
 
         /// <inheritdoc />
-        public async Task<DeviceInfo?> GetDevice(string id)
+        public DeviceInfo? GetDevice(string id)
         {
-            var dbContext = await _dbProvider.CreateDbContextAsync().ConfigureAwait(false);
-            await using (dbContext.ConfigureAwait(false))
-            {
-                var device = await dbContext.Devices
-                    .Where(d => d.DeviceId == id)
-                    .OrderByDescending(d => d.DateLastActivity)
-                    .Include(d => d.User)
-                    .SelectMany(d => dbContext.DeviceOptions.Where(o => o.DeviceId == d.DeviceId).DefaultIfEmpty(), (d, o) => new { Device = d, Options = o })
-                    .FirstOrDefaultAsync()
-                    .ConfigureAwait(false);
+            var device = _devices.Values.Where(d => d.DeviceId == id).OrderByDescending(d => d.DateLastActivity).FirstOrDefault();
+            _deviceOptions.TryGetValue(id, out var deviceOption);
 
-                var deviceInfo = device is null ? null : ToDeviceInfo(device.Device, device.Options);
-
-                return deviceInfo;
-            }
+            var deviceInfo = device is null ? null : ToDeviceInfo(device, deviceOption);
+            return deviceInfo;
         }
 
         /// <inheritdoc />
-        public async Task<QueryResult<Device>> GetDevices(DeviceQuery query)
+        public QueryResult<Device> GetDevices(DeviceQuery query)
         {
-            var dbContext = await _dbProvider.CreateDbContextAsync().ConfigureAwait(false);
-            await using (dbContext.ConfigureAwait(false))
+            IEnumerable<Device> devices = _devices.Values
+                .Where(device => !query.UserId.HasValue || device.UserId.Equals(query.UserId.Value))
+                .Where(device => query.DeviceId == null || device.DeviceId == query.DeviceId)
+                .Where(device => query.AccessToken == null || device.AccessToken == query.AccessToken)
+                .OrderBy(d => d.Id)
+                .ToList();
+            var count = devices.Count();
+
+            if (query.Skip.HasValue)
             {
-                var devices = dbContext.Devices
-                    .OrderBy(d => d.Id)
-                    .Where(device => !query.UserId.HasValue || device.UserId.Equals(query.UserId.Value))
-                    .Where(device => query.DeviceId == null || device.DeviceId == query.DeviceId)
-                    .Where(device => query.AccessToken == null || device.AccessToken == query.AccessToken);
-
-                var count = await devices.CountAsync().ConfigureAwait(false);
-
-                if (query.Skip.HasValue)
-                {
-                    devices = devices.Skip(query.Skip.Value);
-                }
-
-                if (query.Limit.HasValue)
-                {
-                    devices = devices.Take(query.Limit.Value);
-                }
-
-                return new QueryResult<Device>(query.Skip, count, await devices.ToListAsync().ConfigureAwait(false));
+                devices = devices.Skip(query.Skip.Value);
             }
+
+            if (query.Limit.HasValue)
+            {
+                devices = devices.Take(query.Limit.Value);
+            }
+
+            return new QueryResult<Device>(query.Skip, count, devices.ToList());
         }
 
         /// <inheritdoc />
-        public async Task<QueryResult<DeviceInfo>> GetDeviceInfos(DeviceQuery query)
+        public QueryResult<DeviceInfo> GetDeviceInfos(DeviceQuery query)
         {
-            var devices = await GetDevices(query).ConfigureAwait(false);
+            var devices = GetDevices(query);
 
             return new QueryResult<DeviceInfo>(
                 devices.StartIndex,
@@ -167,38 +166,36 @@ namespace Jellyfin.Server.Implementations.Devices
         }
 
         /// <inheritdoc />
-        public async Task<QueryResult<DeviceInfo>> GetDevicesForUser(Guid? userId)
+        public QueryResult<DeviceInfo> GetDevicesForUser(Guid? userId)
         {
-            var dbContext = await _dbProvider.CreateDbContextAsync().ConfigureAwait(false);
-            await using (dbContext.ConfigureAwait(false))
+            IEnumerable<Device> devices = _devices.Values
+                .OrderByDescending(d => d.DateLastActivity)
+                .ThenBy(d => d.DeviceId);
+
+            if (!userId.IsNullOrEmpty())
             {
-                var sessions = dbContext.Devices
-                    .Include(d => d.User)
-                    .OrderByDescending(d => d.DateLastActivity)
-                    .ThenBy(d => d.DeviceId)
-                    .SelectMany(d => dbContext.DeviceOptions.Where(o => o.DeviceId == d.DeviceId).DefaultIfEmpty(), (d, o) => new { Device = d, Options = o })
-                    .AsAsyncEnumerable();
-
-                if (!userId.IsNullOrEmpty())
+                var user = _userManager.GetUserById(userId.Value);
+                if (user is null)
                 {
-                    var user = _userManager.GetUserById(userId.Value);
-                    if (user is null)
-                    {
-                        throw new ResourceNotFoundException();
-                    }
-
-                    sessions = sessions.Where(i => CanAccessDevice(user, i.Device.DeviceId));
+                    throw new ResourceNotFoundException();
                 }
 
-                var array = await sessions.Select(device => ToDeviceInfo(device.Device, device.Options)).ToArrayAsync().ConfigureAwait(false);
-
-                return new QueryResult<DeviceInfo>(array);
+                devices = devices.Where(i => CanAccessDevice(user, i.DeviceId));
             }
+
+            var array = devices.Select(device =>
+                {
+                    _deviceOptions.TryGetValue(device.DeviceId, out var option);
+                    return ToDeviceInfo(device, option);
+                }).ToArray();
+
+            return new QueryResult<DeviceInfo>(array);
         }
 
         /// <inheritdoc />
         public async Task DeleteDevice(Device device)
         {
+            _devices.TryRemove(device.Id, out _);
             var dbContext = await _dbProvider.CreateDbContextAsync().ConfigureAwait(false);
             await using (dbContext.ConfigureAwait(false))
             {
@@ -207,6 +204,19 @@ namespace Jellyfin.Server.Implementations.Devices
             }
         }
 
+        /// <inheritdoc />
+        public async Task UpdateDevice(Device device)
+        {
+            var dbContext = await _dbProvider.CreateDbContextAsync().ConfigureAwait(false);
+            await using (dbContext.ConfigureAwait(false))
+            {
+                dbContext.Devices.Update(device);
+                await dbContext.SaveChangesAsync().ConfigureAwait(false);
+            }
+
+            _devices[device.Id] = device;
+        }
+
         /// <inheritdoc />
         public bool CanAccessDevice(User user, string deviceId)
         {
@@ -225,6 +235,11 @@ namespace Jellyfin.Server.Implementations.Devices
         private DeviceInfo ToDeviceInfo(Device authInfo, DeviceOptions? options = null)
         {
             var caps = GetCapabilities(authInfo.DeviceId);
+            var user = _userManager.GetUserById(authInfo.UserId);
+            if (user is null)
+            {
+                throw new ResourceNotFoundException("User with UserId " + authInfo.UserId + " not found");
+            }
 
             return new DeviceInfo
             {
@@ -232,7 +247,7 @@ namespace Jellyfin.Server.Implementations.Devices
                 AppVersion = authInfo.AppVersion,
                 Id = authInfo.DeviceId,
                 LastUserId = authInfo.UserId,
-                LastUserName = authInfo.User.Username,
+                LastUserName = user.Username,
                 Name = authInfo.DeviceName,
                 DateLastActivity = authInfo.DateLastActivity,
                 IconUrl = caps.IconUrl,

Jellyfin.Server.Implementations/Extensions/ServiceCollectionExtensions.cs

@@ -1,6 +1,5 @@
 using System;
 using System.IO;
-using EFCoreSecondLevelCacheInterceptor;
 using MediaBrowser.Common.Configuration;
 using Microsoft.EntityFrameworkCore;
 using Microsoft.Extensions.DependencyInjection;
@@ -19,18 +18,10 @@ public static class ServiceCollectionExtensions
     /// <returns>The updated service collection.</returns>
     public static IServiceCollection AddJellyfinDbContext(this IServiceCollection serviceCollection)
     {
-        serviceCollection.AddEFSecondLevelCache(options =>
-            options.UseMemoryCacheProvider()
-                .CacheAllQueries(CacheExpirationMode.Sliding, TimeSpan.FromMinutes(10))
-                .UseCacheKeyPrefix("EF_")
-                // Don't cache null values. Remove this optional setting if it's not necessary.
-                .SkipCachingResults(result => result.Value is null or EFTableRows { RowsCount: 0 }));
-
         serviceCollection.AddPooledDbContextFactory<JellyfinDbContext>((serviceProvider, opt) =>
         {
             var applicationPaths = serviceProvider.GetRequiredService<IApplicationPaths>();
-            opt.UseSqlite($"Filename={Path.Combine(applicationPaths.DataPath, "jellyfin.db")}")
-                .AddInterceptors(serviceProvider.GetRequiredService<SecondLevelCacheInterceptor>());
+            opt.UseSqlite($"Filename={Path.Combine(applicationPaths.DataPath, "jellyfin.db")}");
         });
 
         return serviceCollection;

Jellyfin.Server.Implementations/Jellyfin.Server.Implementations.csproj

@@ -27,7 +27,6 @@
 
   <ItemGroup>
     <PackageReference Include="AsyncKeyedLock" />
-    <PackageReference Include="EFCoreSecondLevelCacheInterceptor" />
     <PackageReference Include="System.Linq.Async" />
     <PackageReference Include="Microsoft.EntityFrameworkCore.Sqlite" />
     <PackageReference Include="Microsoft.EntityFrameworkCore.Relational" />

Jellyfin.Server.Implementations/Security/AuthorizationContext.cs

@@ -4,7 +4,10 @@ using System;
 using System.Collections.Generic;
 using System.Net;
 using System.Threading.Tasks;
+using Jellyfin.Data.Queries;
+using Jellyfin.Extensions;
 using MediaBrowser.Controller;
+using MediaBrowser.Controller.Devices;
 using MediaBrowser.Controller.Library;
 using MediaBrowser.Controller.Net;
 using Microsoft.AspNetCore.Http;
@@ -17,15 +20,18 @@ namespace Jellyfin.Server.Implementations.Security
     {
         private readonly IDbContextFactory<JellyfinDbContext> _jellyfinDbProvider;
         private readonly IUserManager _userManager;
+        private readonly IDeviceManager _deviceManager;
         private readonly IServerApplicationHost _serverApplicationHost;
 
         public AuthorizationContext(
             IDbContextFactory<JellyfinDbContext> jellyfinDb,
             IUserManager userManager,
+            IDeviceManager deviceManager,
             IServerApplicationHost serverApplicationHost)
         {
             _jellyfinDbProvider = jellyfinDb;
             _userManager = userManager;
+            _deviceManager = deviceManager;
             _serverApplicationHost = serverApplicationHost;
         }
 
@@ -121,7 +127,11 @@ namespace Jellyfin.Server.Implementations.Security
             var dbContext = await _jellyfinDbProvider.CreateDbContextAsync().ConfigureAwait(false);
             await using (dbContext.ConfigureAwait(false))
             {
-                var device = await dbContext.Devices.FirstOrDefaultAsync(d => d.AccessToken == token).ConfigureAwait(false);
+                var device = _deviceManager.GetDevices(
+                    new DeviceQuery
+                    {
+                        AccessToken = token
+                    }).Items.FirstOrDefault();
 
                 if (device is not null)
                 {
@@ -178,8 +188,7 @@ namespace Jellyfin.Server.Implementations.Security
 
                     if (updateToken)
                     {
-                        dbContext.Devices.Update(device);
-                        await dbContext.SaveChangesAsync().ConfigureAwait(false);
+                        await _deviceManager.UpdateDevice(device).ConfigureAwait(false);
                     }
                 }
                 else

Jellyfin.Server.Implementations/Users/DeviceAccessHost.cs

@@ -60,10 +60,10 @@ public sealed class DeviceAccessHost : IHostedService
 
     private async Task UpdateDeviceAccess(User user)
     {
-        var existing = (await _deviceManager.GetDevices(new DeviceQuery
+        var existing = _deviceManager.GetDevices(new DeviceQuery
         {
             UserId = user.Id
-        }).ConfigureAwait(false)).Items;
+        }).Items;
 
         foreach (var device in existing)
         {

Jellyfin.Server/Migrations/MigrationRunner.cs

@@ -44,7 +44,8 @@ namespace Jellyfin.Server.Migrations
             typeof(Routines.FixPlaylistOwner),
             typeof(Routines.MigrateRatingLevels),
             typeof(Routines.AddDefaultCastReceivers),
-            typeof(Routines.UpdateDefaultPluginRepository)
+            typeof(Routines.UpdateDefaultPluginRepository),
+            typeof(Routines.FixAudioData),
         };
 
         /// <summary>

Jellyfin.Server/Migrations/Routines/FixAudioData.cs

@@ -0,0 +1,106 @@
+using System;
+using System.Globalization;
+using System.IO;
+using System.Linq;
+using System.Threading;
+using Jellyfin.Data.Enums;
+using MediaBrowser.Controller;
+using MediaBrowser.Controller.Entities;
+using MediaBrowser.Controller.Entities.Audio;
+using MediaBrowser.Controller.Persistence;
+using MediaBrowser.Model.Entities;
+using Microsoft.Extensions.Logging;
+
+namespace Jellyfin.Server.Migrations.Routines
+{
+    /// <summary>
+    /// Fixes the data column of audio types to be deserializable.
+    /// </summary>
+    internal class FixAudioData : IMigrationRoutine
+    {
+        private const string DbFilename = "library.db";
+        private readonly ILogger<FixAudioData> _logger;
+        private readonly IServerApplicationPaths _applicationPaths;
+        private readonly IItemRepository _itemRepository;
+
+        public FixAudioData(
+            IServerApplicationPaths applicationPaths,
+            ILoggerFactory loggerFactory,
+            IItemRepository itemRepository)
+        {
+            _applicationPaths = applicationPaths;
+            _itemRepository = itemRepository;
+            _logger = loggerFactory.CreateLogger<FixAudioData>();
+        }
+
+        /// <inheritdoc/>
+        public Guid Id => Guid.Parse("{CF6FABC2-9FBE-4933-84A5-FFE52EF22A58}");
+
+        /// <inheritdoc/>
+        public string Name => "FixAudioData";
+
+        /// <inheritdoc/>
+        public bool PerformOnNewInstall => false;
+
+        /// <inheritdoc/>
+        public void Perform()
+        {
+            var dbPath = Path.Combine(_applicationPaths.DataPath, DbFilename);
+
+            // Back up the database before modifying any entries
+            for (int i = 1; ; i++)
+            {
+                var bakPath = string.Format(CultureInfo.InvariantCulture, "{0}.bak{1}", dbPath, i);
+                if (!File.Exists(bakPath))
+                {
+                    try
+                    {
+                        _logger.LogInformation("Backing up {Library} to {BackupPath}", DbFilename, bakPath);
+                        File.Copy(dbPath, bakPath);
+                        _logger.LogInformation("{Library} backed up to {BackupPath}", DbFilename, bakPath);
+                        break;
+                    }
+                    catch (Exception ex)
+                    {
+                        _logger.LogError(ex, "Cannot make a backup of {Library} at path {BackupPath}", DbFilename, bakPath);
+                        throw;
+                    }
+                }
+            }
+
+            _logger.LogInformation("Backfilling audio lyrics data to database.");
+            var startIndex = 0;
+            var records = _itemRepository.GetCount(new InternalItemsQuery
+            {
+                IncludeItemTypes = [BaseItemKind.Audio],
+            });
+
+            while (startIndex < records)
+            {
+                var results = _itemRepository.GetItemList(new InternalItemsQuery
+                {
+                    IncludeItemTypes = [BaseItemKind.Audio],
+                    StartIndex = startIndex,
+                    Limit = 5000,
+                    SkipDeserialization = true
+                })
+                .Cast<Audio>()
+                .ToList();
+
+                foreach (var audio in results)
+                {
+                    var lyricMediaStreams = audio.GetMediaStreams().Where(s => s.Type == MediaStreamType.Lyric).Select(s => s.Path).ToList();
+                    if (lyricMediaStreams.Count > 0)
+                    {
+                        audio.HasLyrics = true;
+                        audio.LyricFiles = lyricMediaStreams;
+                    }
+                }
+
+                _itemRepository.SaveItems(results, CancellationToken.None);
+                startIndex += results.Count;
+                _logger.LogInformation("Backfilled data for {UpdatedRecords} of {TotalRecords} audio records", startIndex, records);
+            }
+        }
+    }
+}

MediaBrowser.Common/MediaBrowser.Common.csproj

@@ -8,7 +8,7 @@
   <PropertyGroup>
     <Authors>Jellyfin Contributors</Authors>
     <PackageId>Jellyfin.Common</PackageId>
-    <VersionPrefix>10.9.3</VersionPrefix>
+    <VersionPrefix>10.9.11</VersionPrefix>
     <RepositoryUrl>https://github.com/jellyfin/jellyfin</RepositoryUrl>
     <PackageLicenseExpression>GPL-3.0-only</PackageLicenseExpression>
   </PropertyGroup>

MediaBrowser.Controller/Devices/IDeviceManager.cs

@@ -44,26 +44,28 @@ namespace MediaBrowser.Controller.Devices
         /// </summary>
         /// <param name="id">The identifier.</param>
         /// <returns>DeviceInfo.</returns>
-        Task<DeviceInfo> GetDevice(string id);
+        DeviceInfo GetDevice(string id);
 
         /// <summary>
         /// Gets devices based on the provided query.
         /// </summary>
         /// <param name="query">The device query.</param>
         /// <returns>A <see cref="Task{QueryResult}"/> representing the retrieval of the devices.</returns>
-        Task<QueryResult<Device>> GetDevices(DeviceQuery query);
+        QueryResult<Device> GetDevices(DeviceQuery query);
 
-        Task<QueryResult<DeviceInfo>> GetDeviceInfos(DeviceQuery query);
+        QueryResult<DeviceInfo> GetDeviceInfos(DeviceQuery query);
 
         /// <summary>
         /// Gets the devices.
         /// </summary>
         /// <param name="userId">The user's id, or <c>null</c>.</param>
         /// <returns>IEnumerable&lt;DeviceInfo&gt;.</returns>
-        Task<QueryResult<DeviceInfo>> GetDevicesForUser(Guid? userId);
+        QueryResult<DeviceInfo> GetDevicesForUser(Guid? userId);
 
         Task DeleteDevice(Device device);
 
+        Task UpdateDevice(Device device);
+
         /// <summary>
         /// Determines whether this instance [can access device] the specified user identifier.
         /// </summary>
@@ -74,6 +76,6 @@ namespace MediaBrowser.Controller.Devices
 
         Task UpdateDeviceOptions(string deviceId, string deviceName);
 
-        Task<DeviceOptions> GetDeviceOptions(string deviceId);
+        DeviceOptions GetDeviceOptions(string deviceId);
     }
 }

MediaBrowser.Controller/Entities/BaseItem.cs

@@ -751,9 +751,6 @@ namespace MediaBrowser.Controller.Entities
         [JsonIgnore]
         public virtual bool SupportsAncestors => true;
 
-        [JsonIgnore]
-        public virtual bool StopRefreshIfLocalMetadataFound => true;
-
         [JsonIgnore]
         protected virtual bool SupportsOwnedItems => !ParentId.IsEmpty() && IsFileProtocol;
 
@@ -1183,28 +1180,29 @@ namespace MediaBrowser.Controller.Entities
             return info;
         }
 
-        private string GetMediaSourceName(BaseItem item)
+        internal string GetMediaSourceName(BaseItem item)
         {
             var terms = new List<string>();
 
             var path = item.Path;
             if (item.IsFileProtocol && !string.IsNullOrEmpty(path))
             {
+                var displayName = System.IO.Path.GetFileNameWithoutExtension(path);
                 if (HasLocalAlternateVersions)
                 {
-                    var displayName = System.IO.Path.GetFileNameWithoutExtension(path)
-                        .Replace(System.IO.Path.GetFileName(ContainingFolderPath), string.Empty, StringComparison.OrdinalIgnoreCase)
-                        .TrimStart(new char[] { ' ', '-' });
-
-                    if (!string.IsNullOrEmpty(displayName))
+                    var containingFolderName = System.IO.Path.GetFileName(ContainingFolderPath);
+                    if (displayName.Length > containingFolderName.Length && displayName.StartsWith(containingFolderName, StringComparison.OrdinalIgnoreCase))
                     {
-                        terms.Add(displayName);
+                        var name = displayName.AsSpan(containingFolderName.Length).TrimStart([' ', '-']);
+                        if (!name.IsWhiteSpace())
+                        {
+                            terms.Add(name.ToString());
+                        }
                     }
                 }
 
                 if (terms.Count == 0)
                 {
-                    var displayName = System.IO.Path.GetFileNameWithoutExtension(path);
                     terms.Add(displayName);
                 }
             }
@@ -1952,14 +1950,15 @@ namespace MediaBrowser.Controller.Entities
                 return;
             }
 
-            // Remove it from the item
-            RemoveImage(info);
-
+            // Remove from file system
             if (info.IsLocalFile)
             {
                 FileSystem.DeleteFile(info.Path);
             }
 
+            // Remove from item
+            RemoveImage(info);
+
             await UpdateToRepositoryAsync(ItemUpdateType.ImageUpdate, CancellationToken.None).ConfigureAwait(false);
         }
 

MediaBrowser.Controller/Entities/Folder.cs

@@ -6,6 +6,7 @@ using System;
 using System.Collections.Generic;
 using System.IO;
 using System.Linq;
+using System.Security;
 using System.Text.Json.Serialization;
 using System.Threading;
 using System.Threading.Tasks;
@@ -364,15 +365,23 @@ namespace MediaBrowser.Controller.Entities
 
             if (IsFileProtocol)
             {
-                IEnumerable<BaseItem> nonCachedChildren;
+                IEnumerable<BaseItem> nonCachedChildren = [];
 
                 try
                 {
                     nonCachedChildren = GetNonCachedChildren(directoryService);
                 }
+                catch (IOException ex)
+                {
+                    Logger.LogError(ex, "Error retrieving children from file system");
+                }
+                catch (SecurityException ex)
+                {
+                    Logger.LogError(ex, "Error retrieving children from file system");
+                }
                 catch (Exception ex)
                 {
-                    Logger.LogError(ex, "Error retrieving children folder");
+                    Logger.LogError(ex, "Error retrieving children");
                     return;
                 }
 

MediaBrowser.Controller/Entities/InternalItemsQuery.cs

@@ -51,6 +51,7 @@ namespace MediaBrowser.Controller.Entities
             TrailerTypes = Array.Empty<TrailerType>();
             VideoTypes = Array.Empty<VideoType>();
             Years = Array.Empty<int>();
+            SkipDeserialization = false;
         }
 
         public InternalItemsQuery(User? user)
@@ -358,6 +359,8 @@ namespace MediaBrowser.Controller.Entities
 
         public string? SeriesTimerId { get; set; }
 
+        public bool SkipDeserialization { get; set; }
+
         public void SetUser(User user)
         {
             MaxParentalRating = user.MaxParentalAgeRating;

MediaBrowser.Controller/Entities/Movies/Movie.cs

@@ -45,9 +45,6 @@ namespace MediaBrowser.Controller.Entities.Movies
             set => TmdbCollectionName = value;
         }
 
-        [JsonIgnore]
-        public override bool StopRefreshIfLocalMetadataFound => false;
-
         public override double GetDefaultPrimaryImageAspectRatio()
         {
             // hack for tv plugins

MediaBrowser.Controller/Entities/TV/Episode.cs

@@ -180,10 +180,7 @@ namespace MediaBrowser.Controller.Entities.TV
         }
 
         public string FindSeriesPresentationUniqueKey()
-        {
-            var series = Series;
-            return series is null ? null : series.PresentationUniqueKey;
-        }
+            => Series?.PresentationUniqueKey;
 
         public string FindSeasonName()
         {

MediaBrowser.Controller/Entities/TV/Season.cs

@@ -159,7 +159,7 @@ namespace MediaBrowser.Controller.Entities.TV
 
             Func<BaseItem, bool> filter = i => UserViewBuilder.Filter(i, user, query, UserDataManager, LibraryManager);
 
-            var items = GetEpisodes(user, query.DtoOptions).Where(filter);
+            var items = GetEpisodes(user, query.DtoOptions, true).Where(filter);
 
             return PostFilterAndSort(items, query, false);
         }
@@ -169,30 +169,31 @@ namespace MediaBrowser.Controller.Entities.TV
         /// </summary>
         /// <param name="user">The user.</param>
         /// <param name="options">The options to use.</param>
+        /// <param name="shouldIncludeMissingEpisodes">If missing episodes should be included.</param>
         /// <returns>Set of episodes.</returns>
-        public List<BaseItem> GetEpisodes(User user, DtoOptions options)
+        public List<BaseItem> GetEpisodes(User user, DtoOptions options, bool shouldIncludeMissingEpisodes)
         {
-            return GetEpisodes(Series, user, options);
+            return GetEpisodes(Series, user, options, shouldIncludeMissingEpisodes);
         }
 
-        public List<BaseItem> GetEpisodes(Series series, User user, DtoOptions options)
+        public List<BaseItem> GetEpisodes(Series series, User user, DtoOptions options, bool shouldIncludeMissingEpisodes)
         {
-            return GetEpisodes(series, user, null, options);
+            return GetEpisodes(series, user, null, options, shouldIncludeMissingEpisodes);
         }
 
-        public List<BaseItem> GetEpisodes(Series series, User user, IEnumerable<Episode> allSeriesEpisodes, DtoOptions options)
+        public List<BaseItem> GetEpisodes(Series series, User user, IEnumerable<Episode> allSeriesEpisodes, DtoOptions options, bool shouldIncludeMissingEpisodes)
         {
-            return series.GetSeasonEpisodes(this, user, allSeriesEpisodes, options);
+            return series.GetSeasonEpisodes(this, user, allSeriesEpisodes, options, shouldIncludeMissingEpisodes);
         }
 
         public List<BaseItem> GetEpisodes()
         {
-            return Series.GetSeasonEpisodes(this, null, null, new DtoOptions(true));
+            return Series.GetSeasonEpisodes(this, null, null, new DtoOptions(true), true);
         }
 
         public override List<BaseItem> GetChildren(User user, bool includeLinkedChildren, InternalItemsQuery query)
         {
-            return GetEpisodes(user, new DtoOptions(true));
+            return GetEpisodes(user, new DtoOptions(true), true);
         }
 
         protected override bool GetBlockUnratedValue(User user)

MediaBrowser.Controller/Entities/TV/Series.cs

@@ -25,12 +25,9 @@ namespace MediaBrowser.Controller.Entities.TV
     /// </summary>
     public class Series : Folder, IHasTrailers, IHasDisplayOrder, IHasLookupInfo<SeriesInfo>, IMetadataContainer
     {
-        private readonly Dictionary<int, string> _seasonNames;
-
         public Series()
         {
             AirDays = Array.Empty<DayOfWeek>();
-            _seasonNames = new Dictionary<int, string>();
         }
 
         public DayOfWeek[] AirDays { get; set; }
@@ -72,9 +69,6 @@ namespace MediaBrowser.Controller.Entities.TV
         /// <value>The status.</value>
         public SeriesStatus? Status { get; set; }
 
-        [JsonIgnore]
-        public override bool StopRefreshIfLocalMetadataFound => false;
-
         public override double GetDefaultPrimaryImageAspectRatio()
         {
             double value = 2;
@@ -212,26 +206,6 @@ namespace MediaBrowser.Controller.Entities.TV
             return LibraryManager.GetItemList(query);
         }
 
-        public Dictionary<int, string> GetSeasonNames()
-        {
-            var newSeasons = Children.OfType<Season>()
-                .Where(s => s.IndexNumber.HasValue)
-                .Where(s => !_seasonNames.ContainsKey(s.IndexNumber.Value))
-                .DistinctBy(s => s.IndexNumber);
-
-            foreach (var season in newSeasons)
-            {
-                SetSeasonName(season.IndexNumber.Value, season.Name);
-            }
-
-            return _seasonNames;
-        }
-
-        public void SetSeasonName(int index, string name)
-        {
-            _seasonNames[index] = name;
-        }
-
         private void SetSeasonQueryOptions(InternalItemsQuery query, User user)
         {
             var seriesKey = GetUniqueSeriesKey(this);
@@ -276,7 +250,7 @@ namespace MediaBrowser.Controller.Entities.TV
             return LibraryManager.GetItemsResult(query);
         }
 
-        public IEnumerable<BaseItem> GetEpisodes(User user, DtoOptions options)
+        public IEnumerable<BaseItem> GetEpisodes(User user, DtoOptions options, bool shouldIncludeMissingEpisodes)
         {
             var seriesKey = GetUniqueSeriesKey(this);
 
@@ -286,10 +260,10 @@ namespace MediaBrowser.Controller.Entities.TV
                 SeriesPresentationUniqueKey = seriesKey,
                 IncludeItemTypes = new[] { BaseItemKind.Episode, BaseItemKind.Season },
                 OrderBy = new[] { (ItemSortBy.SortName, SortOrder.Ascending) },
-                DtoOptions = options
+                DtoOptions = options,
             };
 
-            if (user is null || !user.DisplayMissingEpisodes)
+            if (!shouldIncludeMissingEpisodes)
             {
                 query.IsMissing = false;
             }
@@ -299,7 +273,7 @@ namespace MediaBrowser.Controller.Entities.TV
             var allSeriesEpisodes = allItems.OfType<Episode>().ToList();
 
             var allEpisodes = allItems.OfType<Season>()
-                .SelectMany(i => i.GetEpisodes(this, user, allSeriesEpisodes, options))
+                .SelectMany(i => i.GetEpisodes(this, user, allSeriesEpisodes, options, shouldIncludeMissingEpisodes))
                 .Reverse();
 
             // Specials could appear twice based on above - once in season 0, once in the aired season
@@ -311,8 +285,7 @@ namespace MediaBrowser.Controller.Entities.TV
 
         public async Task RefreshAllMetadata(MetadataRefreshOptions refreshOptions, IProgress<double> progress, CancellationToken cancellationToken)
         {
-            // Refresh bottom up, children first, then the boxset
-            // By then hopefully the  movies within will have Tmdb collection values
+            // Refresh bottom up, seasons and episodes first, then the series
             var items = GetRecursiveChildren();
 
             var totalItems = items.Count;
@@ -375,7 +348,7 @@ namespace MediaBrowser.Controller.Entities.TV
             await ProviderManager.RefreshSingleItem(this, refreshOptions, cancellationToken).ConfigureAwait(false);
         }
 
-        public List<BaseItem> GetSeasonEpisodes(Season parentSeason, User user, DtoOptions options)
+        public List<BaseItem> GetSeasonEpisodes(Season parentSeason, User user, DtoOptions options, bool shouldIncludeMissingEpisodes)
         {
             var queryFromSeries = ConfigurationManager.Configuration.DisplaySpecialsWithinSeasons;
 
@@ -392,24 +365,22 @@ namespace MediaBrowser.Controller.Entities.TV
                 OrderBy = new[] { (ItemSortBy.SortName, SortOrder.Ascending) },
                 DtoOptions = options
             };
-            if (user is not null)
+
+            if (!shouldIncludeMissingEpisodes)
             {
-                if (!user.DisplayMissingEpisodes)
-                {
-                    query.IsMissing = false;
-                }
+                query.IsMissing = false;
             }
 
             var allItems = LibraryManager.GetItemList(query);
 
-            return GetSeasonEpisodes(parentSeason, user, allItems, options);
+            return GetSeasonEpisodes(parentSeason, user, allItems, options, shouldIncludeMissingEpisodes);
         }
 
-        public List<BaseItem> GetSeasonEpisodes(Season parentSeason, User user, IEnumerable<BaseItem> allSeriesEpisodes, DtoOptions options)
+        public List<BaseItem> GetSeasonEpisodes(Season parentSeason, User user, IEnumerable<BaseItem> allSeriesEpisodes, DtoOptions options, bool shouldIncludeMissingEpisodes)
         {
             if (allSeriesEpisodes is null)
             {
-                return GetSeasonEpisodes(parentSeason, user, options);
+                return GetSeasonEpisodes(parentSeason, user, options, shouldIncludeMissingEpisodes);
             }
 
             var episodes = FilterEpisodesBySeason(allSeriesEpisodes, parentSeason, ConfigurationManager.Configuration.DisplaySpecialsWithinSeasons);

MediaBrowser.Controller/Entities/Trailer.cs

@@ -23,9 +23,6 @@ namespace MediaBrowser.Controller.Entities
             TrailerTypes = Array.Empty<TrailerType>();
         }
 
-        [JsonIgnore]
-        public override bool StopRefreshIfLocalMetadataFound => false;
-
         public TrailerType[] TrailerTypes { get; set; }
 
         public override double GetDefaultPrimaryImageAspectRatio()

MediaBrowser.Controller/Entities/UserViewBuilder.cs

@@ -430,8 +430,6 @@ namespace MediaBrowser.Controller.Entities
             InternalItemsQuery query,
             ILibraryManager libraryManager)
         {
-            var user = query.User;
-
             // This must be the last filter
             if (!query.AdjacentTo.IsNullOrEmpty())
             {

MediaBrowser.Controller/IO/FileSystemHelper.cs

@@ -0,0 +1,64 @@
+using System;
+using System.IO;
+using System.Linq;
+using MediaBrowser.Model.IO;
+using Microsoft.Extensions.Logging;
+
+namespace MediaBrowser.Controller.IO;
+
+/// <summary>
+/// Helper methods for file system management.
+/// </summary>
+public static class FileSystemHelper
+{
+    /// <summary>
+    /// Deletes the file.
+    /// </summary>
+    /// <param name="fileSystem">The fileSystem.</param>
+    /// <param name="path">The path.</param>
+    /// <param name="logger">The logger.</param>
+    public static void DeleteFile(IFileSystem fileSystem, string path, ILogger logger)
+    {
+        try
+        {
+            fileSystem.DeleteFile(path);
+        }
+        catch (UnauthorizedAccessException ex)
+        {
+            logger.LogError(ex, "Error deleting file {Path}", path);
+        }
+        catch (IOException ex)
+        {
+            logger.LogError(ex, "Error deleting file {Path}", path);
+        }
+    }
+
+    /// <summary>
+    /// Recursively delete empty folders.
+    /// </summary>
+    /// <param name="fileSystem">The fileSystem.</param>
+    /// <param name="path">The path.</param>
+    /// <param name="logger">The logger.</param>
+    public static void DeleteEmptyFolders(IFileSystem fileSystem, string path, ILogger logger)
+    {
+        foreach (var directory in fileSystem.GetDirectoryPaths(path))
+        {
+            DeleteEmptyFolders(fileSystem, directory, logger);
+            if (!fileSystem.GetFileSystemEntryPaths(directory).Any())
+            {
+                try
+                {
+                    Directory.Delete(directory, false);
+                }
+                catch (UnauthorizedAccessException ex)
+                {
+                    logger.LogError(ex, "Error deleting directory {Path}", directory);
+                }
+                catch (IOException ex)
+                {
+                    logger.LogError(ex, "Error deleting directory {Path}", directory);
+                }
+            }
+        }
+    }
+}

MediaBrowser.Controller/Library/ILibraryManager.cs

@@ -149,6 +149,14 @@ namespace MediaBrowser.Controller.Library
         /// <returns>Task.</returns>
         Task ValidateMediaLibrary(IProgress<double> progress, CancellationToken cancellationToken);
 
+        /// <summary>
+        /// Reloads the root media folder.
+        /// </summary>
+        /// <param name="cancellationToken">The cancellation token.</param>
+        /// <param name="removeRoot">Is remove the library itself allowed.</param>
+        /// <returns>Task.</returns>
+        Task ValidateTopLibraryFolders(CancellationToken cancellationToken, bool removeRoot = false);
+
         Task UpdateImagesAsync(BaseItem item, bool forceUpdate = false);
 
         /// <summary>

MediaBrowser.Controller/MediaBrowser.Controller.csproj

@@ -8,7 +8,7 @@
   <PropertyGroup>
     <Authors>Jellyfin Contributors</Authors>
     <PackageId>Jellyfin.Controller</PackageId>
-    <VersionPrefix>10.9.3</VersionPrefix>
+    <VersionPrefix>10.9.11</VersionPrefix>
     <RepositoryUrl>https://github.com/jellyfin/jellyfin</RepositoryUrl>
     <PackageLicenseExpression>GPL-3.0-only</PackageLicenseExpression>
   </PropertyGroup>

MediaBrowser.Controller/MediaEncoding/EncodingHelper.cs

@@ -1189,8 +1189,9 @@ namespace MediaBrowser.Controller.MediaEncoding
             {
                 var tmpConcatPath = Path.Join(_configurationManager.GetTranscodePath(), state.MediaSource.Id + ".concat");
                 _mediaEncoder.GenerateConcatConfig(state.MediaSource, tmpConcatPath);
-                arg.Append(" -f concat -safe 0 -i ")
-                    .Append(tmpConcatPath);
+                arg.Append(" -f concat -safe 0 -i \"")
+                    .Append(tmpConcatPath)
+                    .Append("\" ");
             }
             else
             {
@@ -1207,8 +1208,8 @@ namespace MediaBrowser.Controller.MediaEncoding
                 var subtitlePath = state.SubtitleStream.Path;
                 var subtitleExtension = Path.GetExtension(subtitlePath.AsSpan());
 
-                if (subtitleExtension.Equals(".sub", StringComparison.OrdinalIgnoreCase)
-                    || subtitleExtension.Equals(".sup", StringComparison.OrdinalIgnoreCase))
+                // dvdsub/vobsub graphical subtitles use .sub+.idx pairs
+                if (subtitleExtension.Equals(".sub", StringComparison.OrdinalIgnoreCase))
                 {
                     var idxFile = Path.ChangeExtension(subtitlePath, ".idx");
                     if (File.Exists(idxFile))
@@ -1312,7 +1313,7 @@ namespace MediaBrowser.Controller.MediaEncoding
 
             // Apply aac_adtstoasc bitstream filter when media source is in mpegts.
             if (string.Equals(segmentFormat, "mp4", StringComparison.OrdinalIgnoreCase)
-                && (string.Equals(mediaSourceContainer, "mpegts", StringComparison.OrdinalIgnoreCase)
+                && (string.Equals(mediaSourceContainer, "ts", StringComparison.OrdinalIgnoreCase)
                     || string.Equals(mediaSourceContainer, "aac", StringComparison.OrdinalIgnoreCase)
                     || string.Equals(mediaSourceContainer, "hls", StringComparison.OrdinalIgnoreCase)))
             {
@@ -2004,7 +2005,26 @@ namespace MediaBrowser.Controller.MediaEncoding
             }
 
             var profile = state.GetRequestedProfiles(targetVideoCodec).FirstOrDefault() ?? string.Empty;
-            profile = WhiteSpaceRegex().Replace(profile, string.Empty);
+            profile = WhiteSpaceRegex().Replace(profile, string.Empty).ToLowerInvariant();
+
+            var videoProfiles = Array.Empty<string>();
+            if (string.Equals("h264", targetVideoCodec, StringComparison.OrdinalIgnoreCase))
+            {
+                videoProfiles = _videoProfilesH264;
+            }
+            else if (string.Equals("hevc", targetVideoCodec, StringComparison.OrdinalIgnoreCase))
+            {
+                videoProfiles = _videoProfilesH265;
+            }
+            else if (string.Equals("av1", targetVideoCodec, StringComparison.OrdinalIgnoreCase))
+            {
+                videoProfiles = _videoProfilesAv1;
+            }
+
+            if (!videoProfiles.Contains(profile, StringComparison.OrdinalIgnoreCase))
+            {
+                profile = string.Empty;
+            }
 
             // We only transcode to HEVC 8-bit for now, force Main Profile.
             if (profile.Contains("main10", StringComparison.OrdinalIgnoreCase)
@@ -2320,7 +2340,11 @@ namespace MediaBrowser.Controller.MediaEncoding
             if (request.VideoBitRate.HasValue
                 && (!videoStream.BitRate.HasValue || videoStream.BitRate.Value > request.VideoBitRate.Value))
             {
-                return false;
+                // For LiveTV that has no bitrate, let's try copy if other conditions are met
+                if (string.IsNullOrWhiteSpace(request.LiveStreamId) || videoStream.BitRate.HasValue)
+                {
+                    return false;
+                }
             }
 
             var maxBitDepth = state.GetRequestedVideoBitDepth(videoStream.Codec);

MediaBrowser.Controller/Playlists/Playlist.cs

@@ -166,7 +166,7 @@ namespace MediaBrowser.Controller.Playlists
             return base.GetChildren(user, true, query);
         }
 
-        public static IReadOnlyList<BaseItem> GetPlaylistItems(MediaType playlistMediaType, IEnumerable<BaseItem> inputItems, User user, DtoOptions options)
+        public static IReadOnlyList<BaseItem> GetPlaylistItems(IEnumerable<BaseItem> inputItems, User user, DtoOptions options)
         {
             if (user is not null)
             {
@@ -177,14 +177,14 @@ namespace MediaBrowser.Controller.Playlists
 
             foreach (var item in inputItems)
             {
-                var playlistItems = GetPlaylistItems(item, user, playlistMediaType, options);
+                var playlistItems = GetPlaylistItems(item, user, options);
                 list.AddRange(playlistItems);
             }
 
             return list;
         }
 
-        private static IEnumerable<BaseItem> GetPlaylistItems(BaseItem item, User user, MediaType mediaType, DtoOptions options)
+        private static IEnumerable<BaseItem> GetPlaylistItems(BaseItem item, User user, DtoOptions options)
         {
             if (item is MusicGenre musicGenre)
             {
@@ -216,7 +216,7 @@ namespace MediaBrowser.Controller.Playlists
                 {
                     Recursive = true,
                     IsFolder = false,
-                    MediaTypes = [mediaType],
+                    MediaTypes = [MediaType.Audio, MediaType.Video],
                     EnableTotalRecordCount = false,
                     DtoOptions = options
                 };

MediaBrowser.Controller/Providers/DirectoryService.cs

@@ -28,6 +28,22 @@ namespace MediaBrowser.Controller.Providers
             return _cache.GetOrAdd(path, static (p, fileSystem) => fileSystem.GetFileSystemEntries(p).ToArray(), _fileSystem);
         }
 
+        public List<FileSystemMetadata> GetDirectories(string path)
+        {
+            var list = new List<FileSystemMetadata>();
+            var items = GetFileSystemEntries(path);
+            for (var i = 0; i < items.Length; i++)
+            {
+                var item = items[i];
+                if (item.IsDirectory)
+                {
+                    list.Add(item);
+                }
+            }
+
+            return list;
+        }
+
         public List<FileSystemMetadata> GetFiles(string path)
         {
             var list = new List<FileSystemMetadata>();

MediaBrowser.Controller/Providers/IDirectoryService.cs

@@ -9,6 +9,8 @@ namespace MediaBrowser.Controller.Providers
     {
         FileSystemMetadata[] GetFileSystemEntries(string path);
 
+        List<FileSystemMetadata> GetDirectories(string path);
+
         List<FileSystemMetadata> GetFiles(string path);
 
         FileSystemMetadata? GetFile(string path);

MediaBrowser.Controller/Providers/IProviderManager.cs

@@ -140,6 +140,14 @@ namespace MediaBrowser.Controller.Providers
         IEnumerable<IMetadataProvider<T>> GetMetadataProviders<T>(BaseItem item, LibraryOptions libraryOptions)
             where T : BaseItem;
 
+        /// <summary>
+        /// Gets the metadata savers for the provided item.
+        /// </summary>
+        /// <param name="item">The item.</param>
+        /// <param name="libraryOptions">The library options.</param>
+        /// <returns>The metadata savers.</returns>
+        IEnumerable<IMetadataSaver> GetMetadataSavers(BaseItem item, LibraryOptions libraryOptions);
+
         /// <summary>
         /// Gets all metadata plugins.
         /// </summary>

MediaBrowser.Controller/Providers/ItemInfo.cs

@@ -11,6 +11,8 @@ namespace MediaBrowser.Controller.Providers
         public ItemInfo(BaseItem item)
         {
             Path = item.Path;
+            ParentId = item.ParentId;
+            IndexNumber = item.IndexNumber;
             ContainingFolderPath = item.ContainingFolderPath;
             IsInMixedFolder = item.IsInMixedFolder;
 
@@ -27,6 +29,10 @@ namespace MediaBrowser.Controller.Providers
 
         public string Path { get; set; }
 
+        public Guid ParentId { get; set; }
+
+        public int? IndexNumber { get; set; }
+
         public string ContainingFolderPath { get; set; }
 
         public VideoType VideoType { get; set; }

MediaBrowser.LocalMetadata/Images/EpisodeLocalImageProvider.cs

@@ -38,19 +38,26 @@ namespace MediaBrowser.LocalMetadata.Images
             }
 
             var parentPathFiles = directoryService.GetFiles(parentPath);
+            var nameWithoutExtension = Path.GetFileNameWithoutExtension(item.Path.AsSpan()).ToString();
 
-            var nameWithoutExtension = Path.GetFileNameWithoutExtension(item.Path.AsSpan());
+            var images = GetImageFilesFromFolder(nameWithoutExtension, parentPathFiles);
 
-            return GetFilesFromParentFolder(nameWithoutExtension, parentPathFiles);
+            var metadataSubDir = directoryService.GetDirectories(parentPath).FirstOrDefault(d => d.Name.Equals("metadata", StringComparison.Ordinal));
+            if (metadataSubDir is not null)
+            {
+                var files = directoryService.GetFiles(metadataSubDir.FullName);
+                images.AddRange(GetImageFilesFromFolder(nameWithoutExtension, files));
+            }
+
+            return images;
         }
 
-        private List<LocalImageInfo> GetFilesFromParentFolder(ReadOnlySpan<char> filenameWithoutExtension, List<FileSystemMetadata> parentPathFiles)
+        private List<LocalImageInfo> GetImageFilesFromFolder(ReadOnlySpan<char> filenameWithoutExtension, List<FileSystemMetadata> filePaths)
         {
+            var list = new List<LocalImageInfo>(1);
             var thumbName = string.Concat(filenameWithoutExtension, "-thumb");
 
-            var list = new List<LocalImageInfo>(1);
-
-            foreach (var i in parentPathFiles)
+            foreach (var i in filePaths)
             {
                 if (i.IsDirectory)
                 {

MediaBrowser.MediaEncoding/Attachments/AttachmentExtractor.cs

@@ -89,7 +89,8 @@ namespace MediaBrowser.MediaEncoding.Attachments
             string outputPath,
             CancellationToken cancellationToken)
         {
-            var shouldExtractOneByOne = mediaSource.MediaAttachments.Any(a => a.FileName.Contains('/', StringComparison.OrdinalIgnoreCase) || a.FileName.Contains('\\', StringComparison.OrdinalIgnoreCase));
+            var shouldExtractOneByOne = mediaSource.MediaAttachments.Any(a => !string.IsNullOrEmpty(a.FileName)
+                                                                              && (a.FileName.Contains('/', StringComparison.OrdinalIgnoreCase) || a.FileName.Contains('\\', StringComparison.OrdinalIgnoreCase)));
             if (shouldExtractOneByOne)
             {
                 var attachmentIndexes = mediaSource.MediaAttachments.Select(a => a.Index);
@@ -283,7 +284,7 @@ namespace MediaBrowser.MediaEncoding.Attachments
 
                 if (extractableAttachmentIds.Count > 0)
                 {
-                    await CacheAllAttachmentsInternal(mediaPath, inputFile, mediaSource, extractableAttachmentIds, cancellationToken).ConfigureAwait(false);
+                    await CacheAllAttachmentsInternal(mediaPath, _mediaEncoder.GetInputArgument(inputFile, mediaSource), mediaSource, extractableAttachmentIds, cancellationToken).ConfigureAwait(false);
                 }
             }
             catch (Exception ex)
@@ -322,7 +323,7 @@ namespace MediaBrowser.MediaEncoding.Attachments
 
             processArgs += string.Format(
                 CultureInfo.InvariantCulture,
-                " -i \"{0}\" -t 0 -f null null",
+                " -i {0} -t 0 -f null null",
                 inputFile);
 
             int exitCode;

MediaBrowser.MediaEncoding/Encoder/EncoderValidator.cs

@@ -168,6 +168,8 @@ namespace MediaBrowser.MediaEncoding.Encoder
 
         private readonly string _encoderPath;
 
+        private readonly Version _minFFmpegMultiThreadedCli = new Version(7, 0);
+
         public EncoderValidator(ILogger logger, string encoderPath)
         {
             _logger = logger;
@@ -477,7 +479,7 @@ namespace MediaBrowser.MediaEncoding.Encoder
             return false;
         }
 
-        public bool CheckSupportedRuntimeKey(string keyDesc)
+        public bool CheckSupportedRuntimeKey(string keyDesc, Version? ffmpegVersion)
         {
             if (string.IsNullOrEmpty(keyDesc))
             {
@@ -487,7 +489,9 @@ namespace MediaBrowser.MediaEncoding.Encoder
             string output;
             try
             {
-                output = GetProcessOutput(_encoderPath, "-hide_banner -f lavfi -i nullsrc=s=1x1:d=500 -f null -", true, "?");
+                // With multi-threaded cli support, FFmpeg 7 is less sensitive to keyboard input
+                var duration = ffmpegVersion >= _minFFmpegMultiThreadedCli ? 10000 : 1000;
+                output = GetProcessOutput(_encoderPath, $"-hide_banner -f lavfi -i nullsrc=s=1x1:d={duration} -f null -", true, "?");
             }
             catch (Exception ex)
             {

MediaBrowser.MediaEncoding/Encoder/MediaEncoder.cs

@@ -193,7 +193,7 @@ namespace MediaBrowser.MediaEncoding.Encoder
 
                 _threads = EncodingHelper.GetNumberOfThreads(null, options, null);
 
-                _isPkeyPauseSupported = validator.CheckSupportedRuntimeKey("p      pause transcoding");
+                _isPkeyPauseSupported = validator.CheckSupportedRuntimeKey("p      pause transcoding", _ffmpegVersion);
 
                 // Check the Vaapi device vendor
                 if (OperatingSystem.IsLinux()
@@ -456,9 +456,9 @@ namespace MediaBrowser.MediaEncoding.Encoder
                 extraArgs += " -probesize " + ffmpegProbeSize;
             }
 
-            if (request.MediaSource.RequiredHttpHeaders.TryGetValue("user_agent", out var userAgent))
+            if (request.MediaSource.RequiredHttpHeaders.TryGetValue("User-Agent", out var userAgent))
             {
-                extraArgs += " -user_agent " + userAgent;
+                extraArgs += $" -user_agent \"{userAgent}\"";
             }
 
             if (request.MediaSource.Protocol == MediaProtocol.Rtsp)
@@ -625,7 +625,7 @@ namespace MediaBrowser.MediaEncoding.Encoder
             {
                 try
                 {
-                    return await ExtractImageInternal(inputArgument, container, videoStream, imageStreamIndex, threedFormat, offset, true, targetFormat, cancellationToken).ConfigureAwait(false);
+                    return await ExtractImageInternal(inputArgument, container, videoStream, imageStreamIndex, threedFormat, offset, true, targetFormat, false, cancellationToken).ConfigureAwait(false);
                 }
                 catch (ArgumentException)
                 {
@@ -637,7 +637,7 @@ namespace MediaBrowser.MediaEncoding.Encoder
                 }
             }
 
-            return await ExtractImageInternal(inputArgument, container, videoStream, imageStreamIndex, threedFormat, offset, false, targetFormat, cancellationToken).ConfigureAwait(false);
+            return await ExtractImageInternal(inputArgument, container, videoStream, imageStreamIndex, threedFormat, offset, false, targetFormat, isAudio, cancellationToken).ConfigureAwait(false);
         }
 
         private string GetImageResolutionParameter()
@@ -663,7 +663,17 @@ namespace MediaBrowser.MediaEncoding.Encoder
             return imageResolutionParameter;
         }
 
-        private async Task<string> ExtractImageInternal(string inputPath, string container, MediaStream videoStream, int? imageStreamIndex, Video3DFormat? threedFormat, TimeSpan? offset, bool useIFrame, ImageFormat? targetFormat, CancellationToken cancellationToken)
+        private async Task<string> ExtractImageInternal(
+            string inputPath,
+            string container,
+            MediaStream videoStream,
+            int? imageStreamIndex,
+            Video3DFormat? threedFormat,
+            TimeSpan? offset,
+            bool useIFrame,
+            ImageFormat? targetFormat,
+            bool isAudio,
+            CancellationToken cancellationToken)
         {
             ArgumentException.ThrowIfNullOrEmpty(inputPath);
 
@@ -722,7 +732,7 @@ namespace MediaBrowser.MediaEncoding.Encoder
 
             var vf = string.Join(',', filters);
             var mapArg = imageStreamIndex.HasValue ? (" -map 0:" + imageStreamIndex.Value.ToString(CultureInfo.InvariantCulture)) : string.Empty;
-            var args = string.Format(CultureInfo.InvariantCulture, "-i {0}{3} -threads {4} -v quiet -vframes 1 -vf {2}{5} -f image2 \"{1}\"", inputPath, tempExtractPath, vf, mapArg, _threads, GetImageResolutionParameter());
+            var args = string.Format(CultureInfo.InvariantCulture, "-i {0}{3} -threads {4} -v quiet -vframes 1 -vf {2}{5} -f image2 \"{1}\"", inputPath, tempExtractPath, vf, mapArg, _threads, isAudio ? string.Empty : GetImageResolutionParameter());
 
             if (offset.HasValue)
             {
@@ -1155,10 +1165,10 @@ namespace MediaBrowser.MediaEncoding.Encoder
 
             // Get all files from the BDMV/STREAMING directory
             // Only return playable local .m2ts files
+            var files = _fileSystem.GetFiles(Path.Join(path, "BDMV", "STREAM")).ToList();
             return validPlaybackFiles
-                .Select(f => _fileSystem.GetFileInfo(Path.Join(path, "BDMV", "STREAM", f)))
-                .Where(f => f.Exists)
-                .Select(f => f.FullName)
+                .Select(validFile => files.FirstOrDefault(f => Path.GetFileName(f.FullName.AsSpan()).Equals(validFile, StringComparison.OrdinalIgnoreCase))?.FullName)
+                .Where(f => f is not null)
                 .ToList();
         }
 
@@ -1197,7 +1207,8 @@ namespace MediaBrowser.MediaEncoding.Encoder
             }
 
             // Generate concat configuration entries for each file and write to file
-            using StreamWriter sw = new StreamWriter(concatFilePath);
+            Directory.CreateDirectory(Path.GetDirectoryName(concatFilePath));
+            using StreamWriter sw = new FormattingStreamWriter(concatFilePath, CultureInfo.InvariantCulture);
             foreach (var path in files)
             {
                 var mediaInfoResult = GetMediaInfo(
@@ -1216,7 +1227,7 @@ namespace MediaBrowser.MediaEncoding.Encoder
                 var duration = TimeSpan.FromTicks(mediaInfoResult.RunTimeTicks.Value).TotalSeconds;
 
                 // Add file path stanza to concat configuration
-                sw.WriteLine("file '{0}'", path);
+                sw.WriteLine("file '{0}'", path.Replace("'", @"'\''", StringComparison.Ordinal));
 
                 // Add duration stanza to concat configuration
                 sw.WriteLine("duration {0}", duration);

MediaBrowser.MediaEncoding/Probing/ProbeResultNormalizer.cs

@@ -280,8 +280,8 @@ namespace MediaBrowser.MediaEncoding.Probing
                     splitFormat[i] = "mpeg";
                 }
 
-                // Handle MPEG-2 container
-                else if (string.Equals(splitFormat[i], "mpeg", StringComparison.OrdinalIgnoreCase))
+                // Handle MPEG-TS container
+                else if (string.Equals(splitFormat[i], "mpegts", StringComparison.OrdinalIgnoreCase))
                 {
                     splitFormat[i] = "ts";
                 }
@@ -624,15 +624,19 @@ namespace MediaBrowser.MediaEncoding.Probing
         {
             if (string.Equals(codec, "dvb_subtitle", StringComparison.OrdinalIgnoreCase))
             {
-                codec = "dvbsub";
+                codec = "DVBSUB";
             }
-            else if ((codec ?? string.Empty).Contains("PGS", StringComparison.OrdinalIgnoreCase))
+            else if (string.Equals(codec, "dvb_teletext", StringComparison.OrdinalIgnoreCase))
             {
-                codec = "PGSSUB";
+                codec = "DVBTXT";
             }
-            else if ((codec ?? string.Empty).Contains("DVD", StringComparison.OrdinalIgnoreCase))
+            else if (string.Equals(codec, "dvd_subtitle", StringComparison.OrdinalIgnoreCase))
             {
-                codec = "DVDSUB";
+                codec = "DVDSUB"; // .sub+.idx
+            }
+            else if (string.Equals(codec, "hdmv_pgs_subtitle", StringComparison.OrdinalIgnoreCase))
+            {
+                codec = "PGSSUB"; // .sup
             }
 
             return codec;
@@ -717,6 +721,8 @@ namespace MediaBrowser.MediaEncoding.Probing
             if (streamInfo.CodecType == CodecType.Audio)
             {
                 stream.Type = MediaStreamType.Audio;
+                stream.LocalizedDefault = _localization.GetLocalizedString("Default");
+                stream.LocalizedExternal = _localization.GetLocalizedString("External");
 
                 stream.Channels = streamInfo.Channels;
 
@@ -779,11 +785,10 @@ namespace MediaBrowser.MediaEncoding.Probing
                     && !string.Equals(streamInfo.FieldOrder, "progressive", StringComparison.OrdinalIgnoreCase);
 
                 if (isAudio
-                    && (string.Equals(stream.Codec, "bmp", StringComparison.OrdinalIgnoreCase)
-                        || string.Equals(stream.Codec, "gif", StringComparison.OrdinalIgnoreCase)
-                        || string.Equals(stream.Codec, "mjpeg", StringComparison.OrdinalIgnoreCase)
-                        || string.Equals(stream.Codec, "png", StringComparison.OrdinalIgnoreCase)
-                        || string.Equals(stream.Codec, "webp", StringComparison.OrdinalIgnoreCase)))
+                    || string.Equals(stream.Codec, "bmp", StringComparison.OrdinalIgnoreCase)
+                    || string.Equals(stream.Codec, "gif", StringComparison.OrdinalIgnoreCase)
+                    || string.Equals(stream.Codec, "png", StringComparison.OrdinalIgnoreCase)
+                    || string.Equals(stream.Codec, "webp", StringComparison.OrdinalIgnoreCase))
                 {
                     stream.Type = MediaStreamType.EmbeddedImage;
                 }

MediaBrowser.MediaEncoding/Subtitles/SubtitleEncoder.cs

@@ -501,11 +501,11 @@ namespace MediaBrowser.MediaEncoding.Subtitles
             List<MediaStream> subtitleStreams,
             CancellationToken cancellationToken)
         {
-            var inputPath = mediaSource.Path;
+            var inputPath = _mediaEncoder.GetInputArgument(mediaSource.Path, mediaSource);
             var outputPaths = new List<string>();
             var args = string.Format(
                 CultureInfo.InvariantCulture,
-                "-i \"{0}\" -copyts",
+                "-i {0} -copyts",
                 inputPath);
 
             foreach (var subtitleStream in subtitleStreams)
@@ -676,7 +676,7 @@ namespace MediaBrowser.MediaEncoding.Subtitles
 
             var processArgs = string.Format(
                 CultureInfo.InvariantCulture,
-                "-i \"{0}\" -copyts -map 0:{1} -an -vn -c:s {2} \"{3}\"",
+                "-i {0} -copyts -map 0:{1} -an -vn -c:s {2} \"{3}\"",
                 inputPath,
                 subtitleStreamIndex,
                 outputCodec,

MediaBrowser.MediaEncoding/Transcoding/TranscodeManager.cs

@@ -51,6 +51,8 @@ public sealed class TranscodeManager : ITranscodeManager, IDisposable
         o.PoolInitialFill = 1;
     });
 
+    private readonly Version _maxFFmpegCkeyPauseSupported = new Version(6, 1);
+
     /// <summary>
     /// Initializes a new instance of the <see cref="TranscodeManager"/> class.
     /// </summary>
@@ -559,7 +561,9 @@ public sealed class TranscodeManager : ITranscodeManager, IDisposable
 
     private void StartThrottler(StreamState state, TranscodingJob transcodingJob)
     {
-        if (EnableThrottling(state))
+        if (EnableThrottling(state)
+            && (_mediaEncoder.IsPkeyPauseSupported
+                || _mediaEncoder.EncoderVersion <= _maxFFmpegCkeyPauseSupported))
         {
             transcodingJob.TranscodingThrottler = new TranscodingThrottler(transcodingJob, _loggerFactory.CreateLogger<TranscodingThrottler>(), _serverConfigurationManager, _fileSystem, _mediaEncoder);
             transcodingJob.TranscodingThrottler.Start();

MediaBrowser.Model/Dlna/StreamBuilder.cs

@@ -858,7 +858,7 @@ namespace MediaBrowser.Model.Dlna
             {
                 audioStream = directAudioStream;
                 playlistItem.AudioStreamIndex = audioStream.Index;
-                playlistItem.AudioCodecs = new[] { audioStream.Codec };
+                playlistItem.AudioCodecs = audioCodecs = new[] { audioStream.Codec };
 
                 // Copy matching audio codec options
                 playlistItem.AudioSampleRate = audioStream.SampleRate;
@@ -897,18 +897,18 @@ namespace MediaBrowser.Model.Dlna
 
             var appliedVideoConditions = options.Profile.CodecProfiles
                 .Where(i => i.Type == CodecType.Video &&
-                    i.ContainsAnyCodec(videoStream?.Codec, container) &&
-                    i.ApplyConditions.All(applyCondition => ConditionProcessor.IsVideoConditionSatisfied(applyCondition, width, height, bitDepth, videoBitrate, videoProfile, videoRangeType, videoLevel, videoFramerate, packetLength, timestamp, isAnamorphic, isInterlaced, refFrames, numVideoStreams, numAudioStreams, videoCodecTag, isAvc)));
-            var isFirstAppliedCodecProfile = true;
+                    i.ContainsAnyCodec(videoCodecs, container) &&
+                    i.ApplyConditions.All(applyCondition => ConditionProcessor.IsVideoConditionSatisfied(applyCondition, width, height, bitDepth, videoBitrate, videoProfile, videoRangeType, videoLevel, videoFramerate, packetLength, timestamp, isAnamorphic, isInterlaced, refFrames, numVideoStreams, numAudioStreams, videoCodecTag, isAvc)))
+                // Reverse codec profiles for backward compatibility - first codec profile has higher priority
+                .Reverse();
+
             foreach (var i in appliedVideoConditions)
             {
-                var transcodingVideoCodecs = ContainerProfile.SplitValue(videoCodec);
-                foreach (var transcodingVideoCodec in transcodingVideoCodecs)
+                foreach (var transcodingVideoCodec in videoCodecs)
                 {
                     if (i.ContainsAnyCodec(transcodingVideoCodec, container))
                     {
-                        ApplyTranscodingConditions(playlistItem, i.Conditions, transcodingVideoCodec, true, isFirstAppliedCodecProfile);
-                        isFirstAppliedCodecProfile = false;
+                        ApplyTranscodingConditions(playlistItem, i.Conditions, transcodingVideoCodec, true, true);
                         continue;
                     }
                 }
@@ -929,18 +929,18 @@ namespace MediaBrowser.Model.Dlna
 
             var appliedAudioConditions = options.Profile.CodecProfiles
                 .Where(i => i.Type == CodecType.VideoAudio &&
-                    i.ContainsAnyCodec(audioStream?.Codec, container) &&
-                    i.ApplyConditions.All(applyCondition => ConditionProcessor.IsVideoAudioConditionSatisfied(applyCondition, audioChannels, inputAudioBitrate, inputAudioSampleRate, inputAudioBitDepth, audioProfile, isSecondaryAudio)));
-            isFirstAppliedCodecProfile = true;
+                    i.ContainsAnyCodec(audioCodecs, container) &&
+                    i.ApplyConditions.All(applyCondition => ConditionProcessor.IsVideoAudioConditionSatisfied(applyCondition, audioChannels, inputAudioBitrate, inputAudioSampleRate, inputAudioBitDepth, audioProfile, isSecondaryAudio)))
+                // Reverse codec profiles for backward compatibility - first codec profile has higher priority
+                .Reverse();
+
             foreach (var codecProfile in appliedAudioConditions)
             {
-                var transcodingAudioCodecs = ContainerProfile.SplitValue(audioCodec);
-                foreach (var transcodingAudioCodec in transcodingAudioCodecs)
+                foreach (var transcodingAudioCodec in audioCodecs)
                 {
                     if (codecProfile.ContainsAnyCodec(transcodingAudioCodec, container))
                     {
-                        ApplyTranscodingConditions(playlistItem, codecProfile.Conditions, transcodingAudioCodec, true, isFirstAppliedCodecProfile);
-                        isFirstAppliedCodecProfile = false;
+                        ApplyTranscodingConditions(playlistItem, codecProfile.Conditions, transcodingAudioCodec, true, true);
                         break;
                     }
                 }

MediaBrowser.Model/Entities/MediaStream.cs

@@ -656,14 +656,14 @@ namespace MediaBrowser.Model.Entities
         {
             string codec = format ?? string.Empty;
 
-            // sub = external .sub file
+            // microdvd and dvdsub/vobsub share the ".sub" file extension, but it's text-based.
 
-            return !codec.Contains("pgs", StringComparison.OrdinalIgnoreCase)
-                   && !codec.Contains("dvd", StringComparison.OrdinalIgnoreCase)
-                   && !codec.Contains("dvbsub", StringComparison.OrdinalIgnoreCase)
-                   && !string.Equals(codec, "sub", StringComparison.OrdinalIgnoreCase)
-                   && !string.Equals(codec, "sup", StringComparison.OrdinalIgnoreCase)
-                   && !string.Equals(codec, "dvb_subtitle", StringComparison.OrdinalIgnoreCase);
+            return codec.Contains("microdvd", StringComparison.OrdinalIgnoreCase)
+                   || (!codec.Contains("pgs", StringComparison.OrdinalIgnoreCase)
+                       && !codec.Contains("dvdsub", StringComparison.OrdinalIgnoreCase)
+                       && !codec.Contains("dvbsub", StringComparison.OrdinalIgnoreCase)
+                       && !string.Equals(codec, "sup", StringComparison.OrdinalIgnoreCase)
+                       && !string.Equals(codec, "sub", StringComparison.OrdinalIgnoreCase));
         }
 
         public bool SupportsSubtitleConversionTo(string toCodec)

MediaBrowser.Model/MediaBrowser.Model.csproj

@@ -8,7 +8,7 @@
   <PropertyGroup>
     <Authors>Jellyfin Contributors</Authors>
     <PackageId>Jellyfin.Model</PackageId>
-    <VersionPrefix>10.9.3</VersionPrefix>
+    <VersionPrefix>10.9.11</VersionPrefix>
     <RepositoryUrl>https://github.com/jellyfin/jellyfin</RepositoryUrl>
     <PackageLicenseExpression>GPL-3.0-only</PackageLicenseExpression>
   </PropertyGroup>

MediaBrowser.Providers/Manager/ImageSaver.cs

@@ -14,6 +14,7 @@ using MediaBrowser.Common.Configuration;
 using MediaBrowser.Controller.Configuration;
 using MediaBrowser.Controller.Entities;
 using MediaBrowser.Controller.Entities.Audio;
+using MediaBrowser.Controller.IO;
 using MediaBrowser.Controller.Library;
 using MediaBrowser.Model.Configuration;
 using MediaBrowser.Model.Entities;
@@ -100,8 +101,8 @@ namespace MediaBrowser.Providers.Manager
             {
                 saveLocally = false;
 
-                // If season is virtual under a physical series, save locally if using compatible convention
-                if (item is Season season && _config.Configuration.ImageSavingConvention == ImageSavingConvention.Compatible)
+                // If season is virtual under a physical series, save locally
+                if (item is Season season)
                 {
                     var series = season.Series;
 
@@ -126,7 +127,11 @@ namespace MediaBrowser.Providers.Manager
 
             var paths = GetSavePaths(item, type, imageIndex, mimeType, saveLocally);
 
-            var retryPaths = GetSavePaths(item, type, imageIndex, mimeType, false);
+            string[] retryPaths = [];
+            if (saveLocally)
+            {
+                retryPaths = GetSavePaths(item, type, imageIndex, mimeType, false);
+            }
 
             // If there are more than one output paths, the stream will need to be seekable
             if (paths.Length > 1 && !source.CanSeek)
@@ -183,6 +188,29 @@ namespace MediaBrowser.Providers.Manager
                 try
                 {
                     _fileSystem.DeleteFile(currentPath);
+
+                    // Remove local episode metadata directory if it exists and is empty
+                    var directory = Path.GetDirectoryName(currentPath);
+                    if (item is Episode && directory.Equals("metadata", StringComparison.Ordinal))
+                    {
+                        var parentDirectoryPath = Directory.GetParent(currentPath).FullName;
+                        if (_fileSystem.DirectoryExists(parentDirectoryPath) && !_fileSystem.GetFiles(parentDirectoryPath).Any())
+                        {
+                            try
+                            {
+                                _logger.LogInformation("Deleting empty local metadata folder {Folder}", parentDirectoryPath);
+                                Directory.Delete(parentDirectoryPath);
+                            }
+                            catch (UnauthorizedAccessException ex)
+                            {
+                                _logger.LogError(ex, "Error deleting directory {Path}", parentDirectoryPath);
+                            }
+                            catch (IOException ex)
+                            {
+                                _logger.LogError(ex, "Error deleting directory {Path}", parentDirectoryPath);
+                            }
+                        }
+                    }
                 }
                 catch (FileNotFoundException)
                 {
@@ -374,6 +402,47 @@ namespace MediaBrowser.Providers.Manager
                 throw new ArgumentException(string.Format(CultureInfo.InvariantCulture, "Unable to determine image file extension from mime type {0}", mimeType));
             }
 
+            if (string.Equals(extension, ".jpeg", StringComparison.OrdinalIgnoreCase))
+            {
+                extension = ".jpg";
+            }
+
+            extension = extension.ToLowerInvariant();
+
+            if (type == ImageType.Primary && saveLocally)
+            {
+                if (season is not null && season.IndexNumber.HasValue)
+                {
+                    var seriesFolder = season.SeriesPath;
+
+                    var seasonMarker = season.IndexNumber.Value == 0
+                                           ? "-specials"
+                                           : season.IndexNumber.Value.ToString("00", CultureInfo.InvariantCulture);
+
+                    var imageFilename = "season" + seasonMarker + "-poster" + extension;
+
+                    return Path.Combine(seriesFolder, imageFilename);
+                }
+            }
+
+            if (type == ImageType.Backdrop && saveLocally)
+            {
+                if (season is not null
+                    && season.IndexNumber.HasValue
+                    && (imageIndex is null || imageIndex == 0))
+                {
+                    var seriesFolder = season.SeriesPath;
+
+                    var seasonMarker = season.IndexNumber.Value == 0
+                                        ? "-specials"
+                                        : season.IndexNumber.Value.ToString("00", CultureInfo.InvariantCulture);
+
+                    var imageFilename = "season" + seasonMarker + "-fanart" + extension;
+
+                    return Path.Combine(seriesFolder, imageFilename);
+                }
+            }
+
             if (type == ImageType.Thumb && saveLocally)
             {
                 if (season is not null && season.IndexNumber.HasValue)
@@ -447,20 +516,12 @@ namespace MediaBrowser.Providers.Manager
                     break;
             }
 
-            if (string.Equals(extension, ".jpeg", StringComparison.OrdinalIgnoreCase))
-            {
-                extension = ".jpg";
-            }
-
-            extension = extension.ToLowerInvariant();
-
             string path = null;
-
             if (saveLocally)
             {
                 if (type == ImageType.Primary && item is Episode)
                 {
-                    path = Path.Combine(Path.GetDirectoryName(item.Path), "metadata", filename + extension);
+                    path = Path.Combine(Path.GetDirectoryName(item.Path), filename + "-thumb" + extension);
                 }
                 else if (item.IsInMixedFolder)
                 {

MediaBrowser.Providers/Manager/ItemImageProvider.cs

@@ -10,6 +10,7 @@ using System.Threading;
 using System.Threading.Tasks;
 using MediaBrowser.Controller.Entities;
 using MediaBrowser.Controller.Entities.Audio;
+using MediaBrowser.Controller.Entities.TV;
 using MediaBrowser.Controller.Library;
 using MediaBrowser.Controller.LiveTv;
 using MediaBrowser.Controller.Providers;
@@ -96,7 +97,7 @@ namespace MediaBrowser.Providers.Manager
         public bool ValidateImages(BaseItem item, IEnumerable<IImageProvider> providers, ImageRefreshOptions refreshOptions)
         {
             var hasChanges = false;
-            IDirectoryService directoryService = refreshOptions?.DirectoryService;
+            var directoryService = refreshOptions?.DirectoryService;
 
             if (item is not Photo)
             {
@@ -158,7 +159,7 @@ namespace MediaBrowser.Providers.Manager
                 }
             }
 
-            // only delete existing multi-images if new ones were added
+            // Only delete existing multi-images if new ones were added
             if (oldBackdropImages.Length > 0 && oldBackdropImages.Length < item.GetImages(ImageType.Backdrop).Count())
             {
                 PruneImages(item, oldBackdropImages);
@@ -359,10 +360,8 @@ namespace MediaBrowser.Providers.Manager
 
         private void PruneImages(BaseItem item, IReadOnlyList<ItemImageInfo> images)
         {
-            for (var i = 0; i < images.Count; i++)
+            foreach (var image in images)
             {
-                var image = images[i];
-
                 if (image.IsLocalFile)
                 {
                     try
@@ -371,7 +370,7 @@ namespace MediaBrowser.Providers.Manager
                     }
                     catch (FileNotFoundException)
                     {
-                        // nothing to do, already gone
+                        // Nothing to do, already gone
                     }
                     catch (UnauthorizedAccessException ex)
                     {
@@ -381,6 +380,16 @@ namespace MediaBrowser.Providers.Manager
             }
 
             item.RemoveImages(images);
+
+            // Cleanup old metadata directory for episodes if empty
+            if (item is Episode)
+            {
+                var oldLocalMetadataDirectory = Path.Combine(item.ContainingFolderPath, "metadata");
+                if (_fileSystem.DirectoryExists(oldLocalMetadataDirectory) && !_fileSystem.GetFiles(oldLocalMetadataDirectory).Any())
+                {
+                    Directory.Delete(oldLocalMetadataDirectory);
+                }
+            }
         }
 
         /// <summary>
@@ -413,12 +422,10 @@ namespace MediaBrowser.Providers.Manager
         {
             var changed = item.ValidateImages();
             var foundImageTypes = new List<ImageType>();
-
             for (var i = 0; i < _singularImages.Length; i++)
             {
                 var type = _singularImages[i];
                 var image = GetFirstLocalImageInfoByType(images, type);
-
                 if (image is not null)
                 {
                     var currentImage = item.GetImageInfo(type, 0);

MediaBrowser.Providers/Manager/MetadataService.cs

@@ -92,10 +92,6 @@ namespace MediaBrowser.Providers.Manager
                 }
             }
 
-            var localImagesFailed = false;
-
-            var allImageProviders = ProviderManager.GetImageProviders(item, refreshOptions).ToList();
-
             if (refreshOptions.RemoveOldMetadata && refreshOptions.ReplaceAllImages)
             {
                 if (ImageProvider.RemoveImages(item))
@@ -104,24 +100,35 @@ namespace MediaBrowser.Providers.Manager
                 }
             }
 
-            // Start by validating images
-            try
+            var localImagesFailed = false;
+            var allImageProviders = ProviderManager.GetImageProviders(item, refreshOptions).ToList();
+
+            // Only validate already registered images if we are replacing and saving locally
+            if (item.IsSaveLocalMetadataEnabled() && refreshOptions.ReplaceAllImages)
             {
-                // Always validate images and check for new locally stored ones.
-                if (ImageProvider.ValidateImages(item, allImageProviders.OfType<ILocalImageProvider>(), refreshOptions))
-                {
-                    updateType |= ItemUpdateType.ImageUpdate;
-                }
+                item.ValidateImages();
             }
-            catch (Exception ex)
+            else
             {
-                localImagesFailed = true;
-                Logger.LogError(ex, "Error validating images for {Item}", item.Path ?? item.Name ?? "Unknown name");
+                // Run full image validation and register new local images
+                try
+                {
+                    if (ImageProvider.ValidateImages(item, allImageProviders.OfType<ILocalImageProvider>(), refreshOptions))
+                    {
+                        updateType |= ItemUpdateType.ImageUpdate;
+                    }
+                }
+                catch (Exception ex)
+                {
+                    localImagesFailed = true;
+                    Logger.LogError(ex, "Error validating images for {Item}", item.Path ?? item.Name ?? "Unknown name");
+                }
             }
 
             var metadataResult = new MetadataResult<TItemType>
             {
-                Item = itemOfType
+                Item = itemOfType,
+                People = LibraryManager.GetPeople(item)
             };
 
             bool hasRefreshedMetadata = true;
@@ -153,7 +160,8 @@ namespace MediaBrowser.Providers.Manager
 
                     id.IsAutomated = refreshOptions.IsAutomated;
 
-                    var result = await RefreshWithProviders(metadataResult, id, refreshOptions, providers, ImageProvider, cancellationToken).ConfigureAwait(false);
+                    var hasMetadataSavers = ProviderManager.GetMetadataSavers(item, libraryOptions).Any();
+                    var result = await RefreshWithProviders(metadataResult, id, refreshOptions, providers, ImageProvider, hasMetadataSavers, cancellationToken).ConfigureAwait(false);
 
                     updateType |= result.UpdateType;
                     if (result.Failures > 0)
@@ -164,7 +172,7 @@ namespace MediaBrowser.Providers.Manager
             }
 
             // Next run remote image providers, but only if local image providers didn't throw an exception
-            if (!localImagesFailed && refreshOptions.ImageRefreshMode != MetadataRefreshMode.ValidationOnly)
+            if (!localImagesFailed && refreshOptions.ImageRefreshMode > MetadataRefreshMode.ValidationOnly)
             {
                 var providers = GetNonLocalImageProviders(item, allImageProviders, refreshOptions).ToList();
 
@@ -242,7 +250,7 @@ namespace MediaBrowser.Providers.Manager
 
         protected async Task SaveItemAsync(MetadataResult<TItemType> result, ItemUpdateType reason, CancellationToken cancellationToken)
         {
-            if (result.Item.SupportsPeople && result.People is not null)
+            if (result.Item.SupportsPeople)
             {
                 var baseItem = result.Item;
 
@@ -638,6 +646,7 @@ namespace MediaBrowser.Providers.Manager
             MetadataRefreshOptions options,
             ICollection<IMetadataProvider> providers,
             ItemImageProvider imageService,
+            bool isSavingMetadata,
             CancellationToken cancellationToken)
         {
             var refreshResult = new RefreshResult
@@ -655,102 +664,96 @@ namespace MediaBrowser.Providers.Manager
                 await RunCustomProvider(provider, item, logName, options, refreshResult, cancellationToken).ConfigureAwait(false);
             }
 
+            if (item.IsLocked)
+            {
+                return refreshResult;
+            }
+
             var temp = new MetadataResult<TItemType>
             {
                 Item = CreateNew()
             };
             temp.Item.Path = item.Path;
+            temp.Item.Id = item.Id;
+            temp.Item.PreferredMetadataCountryCode = item.PreferredMetadataCountryCode;
+            temp.Item.PreferredMetadataLanguage = item.PreferredMetadataLanguage;
 
-            // If replacing all metadata, run internet providers first
-            if (options.ReplaceAllMetadata)
-            {
-                var remoteResult = await ExecuteRemoteProviders(temp, logName, id, providers.OfType<IRemoteMetadataProvider<TItemType, TIdType>>(), cancellationToken)
-                    .ConfigureAwait(false);
-
-                refreshResult.UpdateType |= remoteResult.UpdateType;
-                refreshResult.ErrorMessage = remoteResult.ErrorMessage;
-                refreshResult.Failures += remoteResult.Failures;
-            }
-
-            var hasLocalMetadata = false;
             var foundImageTypes = new List<ImageType>();
 
-            foreach (var provider in providers.OfType<ILocalMetadataProvider<TItemType>>())
+            // Do not execute local providers if we are identifying or replacing with local metadata saving enabled
+            if (options.SearchResult is null && !(isSavingMetadata && options.ReplaceAllMetadata))
             {
-                var providerName = provider.GetType().Name;
-                Logger.LogDebug("Running {Provider} for {Item}", providerName, logName);
-
-                var itemInfo = new ItemInfo(item);
-
-                try
+                foreach (var provider in providers.OfType<ILocalMetadataProvider<TItemType>>())
                 {
-                    var localItem = await provider.GetMetadata(itemInfo, options.DirectoryService, cancellationToken).ConfigureAwait(false);
+                    var providerName = provider.GetType().Name;
+                    Logger.LogDebug("Running {Provider} for {Item}", providerName, logName);
 
-                    if (localItem.HasMetadata)
+                    var itemInfo = new ItemInfo(item);
+
+                    try
                     {
-                        foreach (var remoteImage in localItem.RemoteImages)
+                        var localItem = await provider.GetMetadata(itemInfo, options.DirectoryService, cancellationToken).ConfigureAwait(false);
+
+                        if (localItem.HasMetadata)
                         {
-                            try
+                            foreach (var remoteImage in localItem.RemoteImages)
                             {
-                                if (item.ImageInfos.Any(x => x.Type == remoteImage.Type)
-                                    && !options.IsReplacingImage(remoteImage.Type))
+                                try
                                 {
-                                    continue;
+                                    if (item.ImageInfos.Any(x => x.Type == remoteImage.Type)
+                                        && !options.IsReplacingImage(remoteImage.Type))
+                                    {
+                                        continue;
+                                    }
+
+                                    await ProviderManager.SaveImage(item, remoteImage.Url, remoteImage.Type, null, cancellationToken).ConfigureAwait(false);
+                                    refreshResult.UpdateType |= ItemUpdateType.ImageUpdate;
+
+                                    // remember imagetype that has just been downloaded
+                                    foundImageTypes.Add(remoteImage.Type);
+                                }
+                                catch (HttpRequestException ex)
+                                {
+                                    Logger.LogError(ex, "Could not save {ImageType} image: {Url}", Enum.GetName(remoteImage.Type), remoteImage.Url);
                                 }
-
-                                await ProviderManager.SaveImage(item, remoteImage.Url, remoteImage.Type, null, cancellationToken).ConfigureAwait(false);
-                                refreshResult.UpdateType |= ItemUpdateType.ImageUpdate;
-
-                                // remember imagetype that has just been downloaded
-                                foundImageTypes.Add(remoteImage.Type);
                             }
-                            catch (HttpRequestException ex)
+
+                            if (foundImageTypes.Count > 0)
                             {
-                                Logger.LogError(ex, "Could not save {ImageType} image: {Url}", Enum.GetName(remoteImage.Type), remoteImage.Url);
+                                imageService.UpdateReplaceImages(options, foundImageTypes);
                             }
+
+                            if (imageService.MergeImages(item, localItem.Images, options))
+                            {
+                                refreshResult.UpdateType |= ItemUpdateType.ImageUpdate;
+                            }
+
+                            MergeData(localItem, temp, Array.Empty<MetadataField>(), false, true);
+                            refreshResult.UpdateType |= ItemUpdateType.MetadataImport;
+
+                            break;
                         }
 
-                        if (foundImageTypes.Count > 0)
-                        {
-                            imageService.UpdateReplaceImages(options, foundImageTypes);
-                        }
-
-                        if (imageService.MergeImages(item, localItem.Images, options))
-                        {
-                            refreshResult.UpdateType |= ItemUpdateType.ImageUpdate;
-                        }
-
-                        MergeData(localItem, temp, Array.Empty<MetadataField>(), options.ReplaceAllMetadata, true);
-                        refreshResult.UpdateType |= ItemUpdateType.MetadataImport;
-
-                        // Only one local provider allowed per item
-                        if (item.IsLocked || localItem.Item.IsLocked || IsFullLocalMetadata(localItem.Item))
-                        {
-                            hasLocalMetadata = true;
-                        }
-
-                        break;
+                        Logger.LogDebug("{Provider} returned no metadata for {Item}", providerName, logName);
                     }
+                    catch (OperationCanceledException)
+                    {
+                        throw;
+                    }
+                    catch (Exception ex)
+                    {
+                        Logger.LogError(ex, "Error in {Provider}", provider.Name);
 
-                    Logger.LogDebug("{Provider} returned no metadata for {Item}", providerName, logName);
-                }
-                catch (OperationCanceledException)
-                {
-                    throw;
-                }
-                catch (Exception ex)
-                {
-                    Logger.LogError(ex, "Error in {Provider}", provider.Name);
-
-                    // If a local provider fails, consider that a failure
-                    refreshResult.ErrorMessage = ex.Message;
+                        // If a local provider fails, consider that a failure
+                        refreshResult.ErrorMessage = ex.Message;
+                    }
                 }
             }
 
-            // Local metadata is king - if any is found don't run remote providers
-            if (!options.ReplaceAllMetadata && (!hasLocalMetadata || options.MetadataRefreshMode == MetadataRefreshMode.FullRefresh || !item.StopRefreshIfLocalMetadataFound))
+            var isLocalLocked = temp.Item.IsLocked;
+            if (!isLocalLocked && (options.ReplaceAllMetadata || options.MetadataRefreshMode > MetadataRefreshMode.ValidationOnly))
             {
-                var remoteResult = await ExecuteRemoteProviders(temp, logName, id, providers.OfType<IRemoteMetadataProvider<TItemType, TIdType>>(), cancellationToken)
+                var remoteResult = await ExecuteRemoteProviders(temp, logName, false, id, providers.OfType<IRemoteMetadataProvider<TItemType, TIdType>>(), cancellationToken)
                     .ConfigureAwait(false);
 
                 refreshResult.UpdateType |= remoteResult.UpdateType;
@@ -762,19 +765,20 @@ namespace MediaBrowser.Providers.Manager
             {
                 if (refreshResult.UpdateType > ItemUpdateType.None)
                 {
-                    if (hasLocalMetadata)
+                    if (!options.RemoveOldMetadata)
+                    {
+                        // Add existing metadata to provider result if it does not exist there
+                        MergeData(metadata, temp, Array.Empty<MetadataField>(), false, false);
+                    }
+
+                    if (isLocalLocked)
                     {
                         MergeData(temp, metadata, item.LockedFields, true, true);
                     }
                     else
                     {
-                        if (!options.RemoveOldMetadata)
-                        {
-                            MergeData(metadata, temp, Array.Empty<MetadataField>(), false, false);
-                        }
-
-                        // Will always replace all metadata when Scan for new and updated files is used. Else, follow the options.
-                        MergeData(temp, metadata, item.LockedFields, options.MetadataRefreshMode == MetadataRefreshMode.Default || options.ReplaceAllMetadata, false);
+                        var shouldReplace = options.MetadataRefreshMode > MetadataRefreshMode.ValidationOnly || options.ReplaceAllMetadata;
+                        MergeData(temp, metadata, item.LockedFields, shouldReplace, true);
                     }
                 }
             }
@@ -787,16 +791,6 @@ namespace MediaBrowser.Providers.Manager
             return refreshResult;
         }
 
-        protected virtual bool IsFullLocalMetadata(TItemType item)
-        {
-            if (string.IsNullOrWhiteSpace(item.Name))
-            {
-                return false;
-            }
-
-            return true;
-        }
-
         private async Task RunCustomProvider(ICustomMetadataProvider<TItemType> provider, TItemType item, string logName, MetadataRefreshOptions options, RefreshResult refreshResult, CancellationToken cancellationToken)
         {
             Logger.LogDebug("Running {Provider} for {Item}", provider.GetType().Name, logName);
@@ -821,23 +815,20 @@ namespace MediaBrowser.Providers.Manager
             return new TItemType();
         }
 
-        private async Task<RefreshResult> ExecuteRemoteProviders(MetadataResult<TItemType> temp, string logName, TIdType id, IEnumerable<IRemoteMetadataProvider<TItemType, TIdType>> providers, CancellationToken cancellationToken)
+        private async Task<RefreshResult> ExecuteRemoteProviders(MetadataResult<TItemType> temp, string logName, bool replaceData, TIdType id, IEnumerable<IRemoteMetadataProvider<TItemType, TIdType>> providers, CancellationToken cancellationToken)
         {
             var refreshResult = new RefreshResult();
 
-            var tmpDataMerged = false;
+            if (id is not null)
+            {
+                MergeNewData(temp.Item, id);
+            }
 
             foreach (var provider in providers)
             {
                 var providerName = provider.GetType().Name;
                 Logger.LogDebug("Running {Provider} for {Item}", providerName, logName);
 
-                if (id is not null && !tmpDataMerged)
-                {
-                    MergeNewData(temp.Item, id);
-                    tmpDataMerged = true;
-                }
-
                 try
                 {
                     var result = await provider.GetMetadata(id, cancellationToken).ConfigureAwait(false);
@@ -846,7 +837,7 @@ namespace MediaBrowser.Providers.Manager
                     {
                         result.Provider = provider.Name;
 
-                        MergeData(result, temp, Array.Empty<MetadataField>(), false, false);
+                        MergeData(result, temp, Array.Empty<MetadataField>(), replaceData, false);
                         MergeNewData(temp.Item, id);
 
                         refreshResult.UpdateType |= ItemUpdateType.MetadataDownload;
@@ -949,11 +940,7 @@ namespace MediaBrowser.Providers.Manager
 
             if (replaceData || string.IsNullOrEmpty(target.OriginalTitle))
             {
-                // Safeguard against incoming data having an empty name
-                if (!string.IsNullOrWhiteSpace(source.OriginalTitle))
-                {
-                    target.OriginalTitle = source.OriginalTitle;
-                }
+                target.OriginalTitle = source.OriginalTitle;
             }
 
             if (replaceData || !target.CommunityRating.HasValue)
@@ -1016,7 +1003,7 @@ namespace MediaBrowser.Providers.Manager
                 {
                     targetResult.People = sourceResult.People;
                 }
-                else if (targetResult.People is not null && sourceResult.People is not null)
+                else if (sourceResult.People is not null && sourceResult.People.Count >= 0)
                 {
                     MergePeople(sourceResult.People, targetResult.People);
                 }
@@ -1049,6 +1036,10 @@ namespace MediaBrowser.Providers.Manager
                 {
                     target.Studios = source.Studios;
                 }
+                else
+                {
+                    target.Studios = target.Studios.Concat(source.Studios).Distinct().ToArray();
+                }
             }
 
             if (!lockedFields.Contains(MetadataField.Tags))
@@ -1057,6 +1048,10 @@ namespace MediaBrowser.Providers.Manager
                 {
                     target.Tags = source.Tags;
                 }
+                else
+                {
+                    target.Tags = target.Tags.Concat(source.Tags).Distinct().ToArray();
+                }
             }
 
             if (!lockedFields.Contains(MetadataField.ProductionLocations))
@@ -1065,6 +1060,10 @@ namespace MediaBrowser.Providers.Manager
                 {
                     target.ProductionLocations = source.ProductionLocations;
                 }
+                else
+                {
+                    target.ProductionLocations = target.ProductionLocations.Concat(source.ProductionLocations).Distinct().ToArray();
+                }
             }
 
             foreach (var id in source.ProviderIds)
@@ -1082,17 +1081,28 @@ namespace MediaBrowser.Providers.Manager
                 }
             }
 
+            if (replaceData || !target.CriticRating.HasValue)
+            {
+                target.CriticRating = source.CriticRating;
+            }
+
+            if (replaceData || target.RemoteTrailers.Count == 0)
+            {
+                target.RemoteTrailers = source.RemoteTrailers;
+            }
+            else
+            {
+                target.RemoteTrailers = target.RemoteTrailers.Concat(source.RemoteTrailers).DistinctBy(t => t.Url).ToArray();
+            }
+
             MergeAlbumArtist(source, target, replaceData);
-            MergeCriticRating(source, target, replaceData);
-            MergeTrailers(source, target, replaceData);
             MergeVideoInfo(source, target, replaceData);
             MergeDisplayOrder(source, target, replaceData);
 
             if (replaceData || string.IsNullOrEmpty(target.ForcedSortName))
             {
                 var forcedSortName = source.ForcedSortName;
-
-                if (!string.IsNullOrWhiteSpace(forcedSortName))
+                if (!string.IsNullOrEmpty(forcedSortName))
                 {
                     target.ForcedSortName = forcedSortName;
                 }
@@ -1100,22 +1110,44 @@ namespace MediaBrowser.Providers.Manager
 
             if (mergeMetadataSettings)
             {
-                target.LockedFields = source.LockedFields;
-                target.IsLocked = source.IsLocked;
+                if (replaceData || !target.IsLocked)
+                {
+                    target.IsLocked = target.IsLocked || source.IsLocked;
+                }
+
+                if (target.LockedFields.Length == 0)
+                {
+                    target.LockedFields = source.LockedFields;
+                }
+                else
+                {
+                    target.LockedFields = target.LockedFields.Concat(source.LockedFields).Distinct().ToArray();
+                }
 
-                // Grab the value if it's there, but if not then don't overwrite with the default
                 if (source.DateCreated != default)
                 {
                     target.DateCreated = source.DateCreated;
                 }
 
-                target.PreferredMetadataCountryCode = source.PreferredMetadataCountryCode;
-                target.PreferredMetadataLanguage = source.PreferredMetadataLanguage;
+                if (replaceData || string.IsNullOrEmpty(target.PreferredMetadataCountryCode))
+                {
+                    target.PreferredMetadataCountryCode = source.PreferredMetadataCountryCode;
+                }
+
+                if (replaceData || string.IsNullOrEmpty(target.PreferredMetadataLanguage))
+                {
+                    target.PreferredMetadataLanguage = source.PreferredMetadataLanguage;
+                }
             }
         }
 
         private static void MergePeople(List<PersonInfo> source, List<PersonInfo> target)
         {
+            if (target is null)
+            {
+                target = new List<PersonInfo>();
+            }
+
             foreach (var person in target)
             {
                 var normalizedName = person.Name.RemoveDiacritics();
@@ -1144,7 +1176,6 @@ namespace MediaBrowser.Providers.Manager
                 if (replaceData || string.IsNullOrEmpty(targetHasDisplayOrder.DisplayOrder))
                 {
                     var displayOrder = sourceHasDisplayOrder.DisplayOrder;
-
                     if (!string.IsNullOrWhiteSpace(displayOrder))
                     {
                         targetHasDisplayOrder.DisplayOrder = displayOrder;
@@ -1162,22 +1193,10 @@ namespace MediaBrowser.Providers.Manager
                 {
                     targetHasAlbumArtist.AlbumArtists = sourceHasAlbumArtist.AlbumArtists;
                 }
-            }
-        }
-
-        private static void MergeCriticRating(BaseItem source, BaseItem target, bool replaceData)
-        {
-            if (replaceData || !target.CriticRating.HasValue)
-            {
-                target.CriticRating = source.CriticRating;
-            }
-        }
-
-        private static void MergeTrailers(BaseItem source, BaseItem target, bool replaceData)
-        {
-            if (replaceData || target.RemoteTrailers.Count == 0)
-            {
-                target.RemoteTrailers = source.RemoteTrailers;
+                else if (sourceHasAlbumArtist.AlbumArtists.Count >= 0)
+                {
+                    targetHasAlbumArtist.AlbumArtists = targetHasAlbumArtist.AlbumArtists.Concat(sourceHasAlbumArtist.AlbumArtists).Distinct().ToArray();
+                }
             }
         }
 
@@ -1185,7 +1204,7 @@ namespace MediaBrowser.Providers.Manager
         {
             if (source is Video sourceCast && target is Video targetCast)
             {
-                if (replaceData || targetCast.Video3DFormat is null)
+                if (replaceData || !targetCast.Video3DFormat.HasValue)
                 {
                     targetCast.Video3DFormat = sourceCast.Video3DFormat;
                 }

MediaBrowser.Providers/Manager/ProviderManager.cs

@@ -418,6 +418,12 @@ namespace MediaBrowser.Providers.Manager
             return GetMetadataProvidersInternal<T>(item, libraryOptions, globalMetadataOptions, false, false);
         }
 
+        /// <inheritdoc />
+        public IEnumerable<IMetadataSaver> GetMetadataSavers(BaseItem item, LibraryOptions libraryOptions)
+        {
+            return _savers.Where(i => IsSaverEnabledForItem(i, item, libraryOptions, ItemUpdateType.MetadataEdit, false));
+        }
+
         private IEnumerable<IMetadataProvider<T>> GetMetadataProvidersInternal<T>(BaseItem item, LibraryOptions libraryOptions, MetadataOptions globalMetadataOptions, bool includeDisabled, bool forceEnableInternetMetadata)
             where T : BaseItem
         {

MediaBrowser.Providers/MediaInfo/AudioFileProber.cs

@@ -1,9 +1,11 @@
 using System;
 using System.Collections.Generic;
+using System.Globalization;
 using System.Linq;
 using System.Threading;
 using System.Threading.Tasks;
 using Jellyfin.Data.Enums;
+using Jellyfin.Extensions;
 using MediaBrowser.Controller.Entities;
 using MediaBrowser.Controller.Entities.Audio;
 using MediaBrowser.Controller.Library;
@@ -135,6 +137,10 @@ namespace MediaBrowser.Providers.MediaInfo
             if (!audio.IsLocked)
             {
                 await FetchDataFromTags(audio, mediaInfo, options, tryExtractEmbeddedLyrics).ConfigureAwait(false);
+                if (tryExtractEmbeddedLyrics)
+                {
+                    AddExternalLyrics(audio, mediaStreams, options);
+                }
             }
 
             audio.HasLyrics = mediaStreams.Any(s => s.Type == MediaStreamType.Lyric);
@@ -151,197 +157,211 @@ namespace MediaBrowser.Providers.MediaInfo
         /// <param name="tryExtractEmbeddedLyrics">Whether to extract embedded lyrics to lrc file. </param>
         private async Task FetchDataFromTags(Audio audio, Model.MediaInfo.MediaInfo mediaInfo, MetadataRefreshOptions options, bool tryExtractEmbeddedLyrics)
         {
-            using var file = TagLib.File.Create(audio.Path);
-            var tagTypes = file.TagTypesOnDisk;
             Tag? tags = null;
+            try
+            {
+                using var file = TagLib.File.Create(audio.Path);
+                var tagTypes = file.TagTypesOnDisk;
 
-            if (tagTypes.HasFlag(TagTypes.Id3v2))
-            {
-                tags = file.GetTag(TagTypes.Id3v2);
-            }
-            else if (tagTypes.HasFlag(TagTypes.Ape))
-            {
-                tags = file.GetTag(TagTypes.Ape);
-            }
-            else if (tagTypes.HasFlag(TagTypes.FlacMetadata))
-            {
-                tags = file.GetTag(TagTypes.FlacMetadata);
-            }
-            else if (tagTypes.HasFlag(TagTypes.Apple))
-            {
-                tags = file.GetTag(TagTypes.Apple);
-            }
-            else if (tagTypes.HasFlag(TagTypes.Xiph))
-            {
-                tags = file.GetTag(TagTypes.Xiph);
-            }
-            else if (tagTypes.HasFlag(TagTypes.AudibleMetadata))
-            {
-                tags = file.GetTag(TagTypes.AudibleMetadata);
-            }
-            else if (tagTypes.HasFlag(TagTypes.Id3v1))
-            {
-                tags = file.GetTag(TagTypes.Id3v1);
-            }
-
-            if (tags is not null)
-            {
-                if (audio.SupportsPeople && !audio.LockedFields.Contains(MetadataField.Cast))
+                if (tagTypes.HasFlag(TagTypes.Id3v2))
                 {
-                    var people = new List<PersonInfo>();
-                    var albumArtists = tags.AlbumArtists;
-                    foreach (var albumArtist in albumArtists)
+                    tags = file.GetTag(TagTypes.Id3v2);
+                }
+                else if (tagTypes.HasFlag(TagTypes.Ape))
+                {
+                    tags = file.GetTag(TagTypes.Ape);
+                }
+                else if (tagTypes.HasFlag(TagTypes.FlacMetadata))
+                {
+                    tags = file.GetTag(TagTypes.FlacMetadata);
+                }
+                else if (tagTypes.HasFlag(TagTypes.Apple))
+                {
+                    tags = file.GetTag(TagTypes.Apple);
+                }
+                else if (tagTypes.HasFlag(TagTypes.Xiph))
+                {
+                    tags = file.GetTag(TagTypes.Xiph);
+                }
+                else if (tagTypes.HasFlag(TagTypes.AudibleMetadata))
+                {
+                    tags = file.GetTag(TagTypes.AudibleMetadata);
+                }
+                else if (tagTypes.HasFlag(TagTypes.Id3v1))
+                {
+                    tags = file.GetTag(TagTypes.Id3v1);
+                }
+            }
+            catch (Exception e)
+            {
+                _logger.LogWarning(e, "TagLib-Sharp does not support this audio");
+            }
+
+            tags ??= new TagLib.Id3v2.Tag();
+            tags.AlbumArtists = tags.AlbumArtists.Length == 0 ? mediaInfo.AlbumArtists : tags.AlbumArtists;
+            tags.Album ??= mediaInfo.Album;
+            tags.Title ??= mediaInfo.Name;
+            tags.Year = tags.Year == 0U ? Convert.ToUInt32(mediaInfo.ProductionYear, CultureInfo.InvariantCulture) : tags.Year;
+            tags.Performers = tags.Performers.Length == 0 ? mediaInfo.Artists : tags.Performers;
+            tags.Genres ??= mediaInfo.Genres;
+            tags.Track = tags.Track == 0U ? Convert.ToUInt32(mediaInfo.IndexNumber, CultureInfo.InvariantCulture) : tags.Track;
+            tags.Disc = tags.Disc == 0U ? Convert.ToUInt32(mediaInfo.ParentIndexNumber, CultureInfo.InvariantCulture) : tags.Disc;
+
+            if (audio.SupportsPeople && !audio.LockedFields.Contains(MetadataField.Cast))
+            {
+                var people = new List<PersonInfo>();
+                var albumArtists = tags.AlbumArtists;
+                foreach (var albumArtist in albumArtists)
+                {
+                    if (!string.IsNullOrEmpty(albumArtist))
                     {
-                        if (!string.IsNullOrEmpty(albumArtist))
+                        PeopleHelper.AddPerson(people, new PersonInfo
                         {
-                            PeopleHelper.AddPerson(people, new PersonInfo
-                            {
-                                Name = albumArtist,
-                                Type = PersonKind.AlbumArtist
-                            });
-                        }
+                            Name = albumArtist,
+                            Type = PersonKind.AlbumArtist
+                        });
                     }
+                }
 
-                    var performers = tags.Performers;
-                    foreach (var performer in performers)
+                var performers = tags.Performers;
+                foreach (var performer in performers)
+                {
+                    if (!string.IsNullOrEmpty(performer))
                     {
-                        if (!string.IsNullOrEmpty(performer))
+                        PeopleHelper.AddPerson(people, new PersonInfo
                         {
-                            PeopleHelper.AddPerson(people, new PersonInfo
-                            {
-                                Name = performer,
-                                Type = PersonKind.Artist
-                            });
-                        }
+                            Name = performer,
+                            Type = PersonKind.Artist
+                        });
                     }
+                }
 
-                    foreach (var composer in tags.Composers)
+                foreach (var composer in tags.Composers)
+                {
+                    if (!string.IsNullOrEmpty(composer))
                     {
-                        if (!string.IsNullOrEmpty(composer))
+                        PeopleHelper.AddPerson(people, new PersonInfo
                         {
-                            PeopleHelper.AddPerson(people, new PersonInfo
-                            {
-                                Name = composer,
-                                Type = PersonKind.Composer
-                            });
-                        }
+                            Name = composer,
+                            Type = PersonKind.Composer
+                        });
                     }
+                }
 
-                    _libraryManager.UpdatePeople(audio, people);
+                _libraryManager.UpdatePeople(audio, people);
 
-                    if (options.ReplaceAllMetadata && performers.Length != 0)
+                if (options.ReplaceAllMetadata && performers.Length != 0)
+                {
+                    audio.Artists = performers;
+                }
+                else if (!options.ReplaceAllMetadata
+                         && (audio.Artists is null || audio.Artists.Count == 0))
+                {
+                    audio.Artists = performers;
+                }
+
+                if (albumArtists.Length == 0)
+                {
+                    // Album artists not provided, fall back to performers (artists).
+                    albumArtists = performers;
+                }
+
+                if (options.ReplaceAllMetadata && albumArtists.Length != 0)
+                {
+                    audio.AlbumArtists = albumArtists;
+                }
+                else if (!options.ReplaceAllMetadata
+                         && (audio.AlbumArtists is null || audio.AlbumArtists.Count == 0))
+                {
+                    audio.AlbumArtists = albumArtists;
+                }
+            }
+
+            if (!audio.LockedFields.Contains(MetadataField.Name) && !string.IsNullOrEmpty(tags.Title))
+            {
+                audio.Name = tags.Title;
+            }
+
+            if (options.ReplaceAllMetadata)
+            {
+                audio.Album = tags.Album;
+                audio.IndexNumber = Convert.ToInt32(tags.Track);
+                audio.ParentIndexNumber = Convert.ToInt32(tags.Disc);
+            }
+            else
+            {
+                audio.Album ??= tags.Album;
+                audio.IndexNumber ??= Convert.ToInt32(tags.Track);
+                audio.ParentIndexNumber ??= Convert.ToInt32(tags.Disc);
+            }
+
+            if (tags.Year != 0)
+            {
+                var year = Convert.ToInt32(tags.Year);
+                audio.ProductionYear = year;
+
+                if (!audio.PremiereDate.HasValue)
+                {
+                    try
                     {
-                        audio.Artists = performers;
+                        audio.PremiereDate = new DateTime(year, 01, 01);
                     }
-                    else if (!options.ReplaceAllMetadata
-                             && (audio.Artists is null || audio.Artists.Count == 0))
+                    catch (ArgumentOutOfRangeException ex)
                     {
-                        audio.Artists = performers;
-                    }
-
-                    if (albumArtists.Length == 0)
-                    {
-                        // Album artists not provided, fall back to performers (artists).
-                        albumArtists = performers;
-                    }
-
-                    if (options.ReplaceAllMetadata && albumArtists.Length != 0)
-                    {
-                        audio.AlbumArtists = albumArtists;
-                    }
-                    else if (!options.ReplaceAllMetadata
-                             && (audio.AlbumArtists is null || audio.AlbumArtists.Count == 0))
-                    {
-                        audio.AlbumArtists = albumArtists;
+                        _logger.LogError(ex, "Error parsing YEAR tag in {File}. '{TagValue}' is an invalid year", audio.Path, tags.Year);
                     }
                 }
+            }
 
-                if (!audio.LockedFields.Contains(MetadataField.Name) && !string.IsNullOrEmpty(tags.Title))
-                {
-                    audio.Name = tags.Title;
-                }
+            if (!audio.LockedFields.Contains(MetadataField.Genres))
+            {
+                audio.Genres = options.ReplaceAllMetadata || audio.Genres == null || audio.Genres.Length == 0
+                    ? tags.Genres.Distinct(StringComparer.OrdinalIgnoreCase).ToArray()
+                    : audio.Genres;
+            }
 
-                if (options.ReplaceAllMetadata)
-                {
-                    audio.Album = tags.Album;
-                    audio.IndexNumber = Convert.ToInt32(tags.Track);
-                    audio.ParentIndexNumber = Convert.ToInt32(tags.Disc);
-                }
-                else
-                {
-                    audio.Album ??= tags.Album;
-                    audio.IndexNumber ??= Convert.ToInt32(tags.Track);
-                    audio.ParentIndexNumber ??= Convert.ToInt32(tags.Disc);
-                }
+            if (!double.IsNaN(tags.ReplayGainTrackGain))
+            {
+                audio.NormalizationGain = (float)tags.ReplayGainTrackGain;
+            }
 
-                if (tags.Year != 0)
-                {
-                    var year = Convert.ToInt32(tags.Year);
-                    audio.ProductionYear = year;
+            if (options.ReplaceAllMetadata || !audio.TryGetProviderId(MetadataProvider.MusicBrainzArtist, out _))
+            {
+                audio.SetProviderId(MetadataProvider.MusicBrainzArtist, tags.MusicBrainzArtistId);
+            }
 
-                    if (!audio.PremiereDate.HasValue)
-                    {
-                        try
-                        {
-                            audio.PremiereDate = new DateTime(year, 01, 01);
-                        }
-                        catch (ArgumentOutOfRangeException ex)
-                        {
-                            _logger.LogError(ex, "Error parsing YEAR tag in {File}. '{TagValue}' is an invalid year.", audio.Path, tags.Year);
-                        }
-                    }
-                }
+            if (options.ReplaceAllMetadata || !audio.TryGetProviderId(MetadataProvider.MusicBrainzAlbumArtist, out _))
+            {
+                audio.SetProviderId(MetadataProvider.MusicBrainzAlbumArtist, tags.MusicBrainzReleaseArtistId);
+            }
 
-                if (!audio.LockedFields.Contains(MetadataField.Genres))
-                {
-                    audio.Genres = options.ReplaceAllMetadata || audio.Genres == null || audio.Genres.Length == 0
-                        ? tags.Genres.Distinct(StringComparer.OrdinalIgnoreCase).ToArray()
-                        : audio.Genres;
-                }
+            if (options.ReplaceAllMetadata || !audio.TryGetProviderId(MetadataProvider.MusicBrainzAlbum, out _))
+            {
+                audio.SetProviderId(MetadataProvider.MusicBrainzAlbum, tags.MusicBrainzReleaseId);
+            }
 
-                if (!double.IsNaN(tags.ReplayGainTrackGain))
-                {
-                    audio.NormalizationGain = (float)tags.ReplayGainTrackGain;
-                }
+            if (options.ReplaceAllMetadata || !audio.TryGetProviderId(MetadataProvider.MusicBrainzReleaseGroup, out _))
+            {
+                audio.SetProviderId(MetadataProvider.MusicBrainzReleaseGroup, tags.MusicBrainzReleaseGroupId);
+            }
 
-                if (options.ReplaceAllMetadata || !audio.TryGetProviderId(MetadataProvider.MusicBrainzArtist, out _))
+            if (options.ReplaceAllMetadata || !audio.TryGetProviderId(MetadataProvider.MusicBrainzTrack, out _))
+            {
+                // Fallback to ffprobe as TagLib incorrectly provides recording MBID in `tags.MusicBrainzTrackId`.
+                // See https://github.com/mono/taglib-sharp/issues/304
+                var trackMbId = mediaInfo.GetProviderId(MetadataProvider.MusicBrainzTrack);
+                if (trackMbId is not null)
                 {
-                    audio.SetProviderId(MetadataProvider.MusicBrainzArtist, tags.MusicBrainzArtistId);
+                    audio.SetProviderId(MetadataProvider.MusicBrainzTrack, trackMbId);
                 }
+            }
 
-                if (options.ReplaceAllMetadata || !audio.TryGetProviderId(MetadataProvider.MusicBrainzAlbumArtist, out _))
-                {
-                    audio.SetProviderId(MetadataProvider.MusicBrainzAlbumArtist, tags.MusicBrainzReleaseArtistId);
-                }
-
-                if (options.ReplaceAllMetadata || !audio.TryGetProviderId(MetadataProvider.MusicBrainzAlbum, out _))
-                {
-                    audio.SetProviderId(MetadataProvider.MusicBrainzAlbum, tags.MusicBrainzReleaseId);
-                }
-
-                if (options.ReplaceAllMetadata || !audio.TryGetProviderId(MetadataProvider.MusicBrainzReleaseGroup, out _))
-                {
-                    audio.SetProviderId(MetadataProvider.MusicBrainzReleaseGroup, tags.MusicBrainzReleaseGroupId);
-                }
-
-                if (options.ReplaceAllMetadata || !audio.TryGetProviderId(MetadataProvider.MusicBrainzTrack, out _))
-                {
-                    // Fallback to ffprobe as TagLib incorrectly provides recording MBID in `tags.MusicBrainzTrackId`.
-                    // See https://github.com/mono/taglib-sharp/issues/304
-                    var trackMbId = mediaInfo.GetProviderId(MetadataProvider.MusicBrainzTrack);
-                    if (trackMbId is not null)
-                    {
-                        audio.SetProviderId(MetadataProvider.MusicBrainzTrack, trackMbId);
-                    }
-                }
-
-                // Save extracted lyrics if they exist,
-                // and if the audio doesn't yet have lyrics.
-                if (!string.IsNullOrWhiteSpace(tags.Lyrics)
-                    && tryExtractEmbeddedLyrics)
-                {
-                    await _lyricManager.SaveLyricAsync(audio, "lrc", tags.Lyrics).ConfigureAwait(false);
-                }
+            // Save extracted lyrics if they exist,
+            // and if the audio doesn't yet have lyrics.
+            if (!string.IsNullOrWhiteSpace(tags.Lyrics)
+                && tryExtractEmbeddedLyrics)
+            {
+                await _lyricManager.SaveLyricAsync(audio, "lrc", tags.Lyrics).ConfigureAwait(false);
             }
         }
 
@@ -354,7 +374,10 @@ namespace MediaBrowser.Providers.MediaInfo
             var externalLyricFiles = _lyricResolver.GetExternalStreams(audio, startIndex, options.DirectoryService, false);
 
             audio.LyricFiles = externalLyricFiles.Select(i => i.Path).Distinct().ToArray();
-            currentStreams.AddRange(externalLyricFiles);
+            if (externalLyricFiles.Count > 0)
+            {
+                currentStreams.Add(externalLyricFiles[0]);
+            }
         }
     }
 }

MediaBrowser.Providers/MediaInfo/FFProbeVideoInfo.cs

@@ -358,6 +358,10 @@ namespace MediaBrowser.Providers.MediaInfo
                 blurayVideoStream.BitRate = blurayVideoStream.BitRate.GetValueOrDefault() == 0 ? ffmpegVideoStream.BitRate : blurayVideoStream.BitRate;
                 blurayVideoStream.Width = blurayVideoStream.Width.GetValueOrDefault() == 0 ? ffmpegVideoStream.Width : blurayVideoStream.Width;
                 blurayVideoStream.Height = blurayVideoStream.Height.GetValueOrDefault() == 0 ? ffmpegVideoStream.Width : blurayVideoStream.Height;
+                blurayVideoStream.ColorRange = ffmpegVideoStream.ColorRange;
+                blurayVideoStream.ColorSpace = ffmpegVideoStream.ColorSpace;
+                blurayVideoStream.ColorTransfer = ffmpegVideoStream.ColorTransfer;
+                blurayVideoStream.ColorPrimaries = ffmpegVideoStream.ColorPrimaries;
             }
         }
 

MediaBrowser.Providers/Movies/MovieMetadataService.cs

@@ -23,22 +23,6 @@ namespace MediaBrowser.Providers.Movies
         {
         }
 
-        /// <inheritdoc />
-        protected override bool IsFullLocalMetadata(Movie item)
-        {
-            if (string.IsNullOrWhiteSpace(item.Overview))
-            {
-                return false;
-            }
-
-            if (!item.ProductionYear.HasValue)
-            {
-                return false;
-            }
-
-            return base.IsFullLocalMetadata(item);
-        }
-
         /// <inheritdoc />
         protected override void MergeData(MetadataResult<Movie> source, MetadataResult<Movie> target, MetadataField[] lockedFields, bool replaceData, bool mergeMetadataSettings)
         {

MediaBrowser.Providers/Movies/TrailerMetadataService.cs

@@ -1,5 +1,6 @@
 #pragma warning disable CS1591
 
+using System.Linq;
 using MediaBrowser.Controller.Configuration;
 using MediaBrowser.Controller.Entities;
 using MediaBrowser.Controller.Library;
@@ -23,22 +24,6 @@ namespace MediaBrowser.Providers.Movies
         {
         }
 
-        /// <inheritdoc />
-        protected override bool IsFullLocalMetadata(Trailer item)
-        {
-            if (string.IsNullOrWhiteSpace(item.Overview))
-            {
-                return false;
-            }
-
-            if (!item.ProductionYear.HasValue)
-            {
-                return false;
-            }
-
-            return base.IsFullLocalMetadata(item);
-        }
-
         /// <inheritdoc />
         protected override void MergeData(MetadataResult<Trailer> source, MetadataResult<Trailer> target, MetadataField[] lockedFields, bool replaceData, bool mergeMetadataSettings)
         {
@@ -48,6 +33,10 @@ namespace MediaBrowser.Providers.Movies
             {
                 target.Item.TrailerTypes = source.Item.TrailerTypes;
             }
+            else
+            {
+                target.Item.TrailerTypes = target.Item.TrailerTypes.Concat(source.Item.TrailerTypes).Distinct().ToArray();
+            }
         }
     }
 }

MediaBrowser.Providers/Music/AlbumMetadataService.cs

@@ -225,6 +225,10 @@ namespace MediaBrowser.Providers.Music
             {
                 targetItem.Artists = sourceItem.Artists;
             }
+            else
+            {
+                targetItem.Artists = targetItem.Artists.Concat(sourceItem.Artists).Distinct().ToArray();
+            }
 
             if (replaceData || string.IsNullOrEmpty(targetItem.GetProviderId(MetadataProvider.MusicBrainzAlbumArtist)))
             {

MediaBrowser.Providers/Music/AudioMetadataService.cs

@@ -1,4 +1,5 @@
 using System;
+using System.Linq;
 using MediaBrowser.Controller.Configuration;
 using MediaBrowser.Controller.Entities.Audio;
 using MediaBrowser.Controller.Library;
@@ -60,6 +61,10 @@ namespace MediaBrowser.Providers.Music
             {
                 targetItem.Artists = sourceItem.Artists;
             }
+            else
+            {
+                targetItem.Artists = targetItem.Artists.Concat(sourceItem.Artists).Distinct().ToArray();
+            }
 
             if (replaceData || string.IsNullOrEmpty(targetItem.Album))
             {

MediaBrowser.Providers/Music/MusicVideoMetadataService.cs

@@ -1,5 +1,6 @@
 #pragma warning disable CS1591
 
+using System.Linq;
 using MediaBrowser.Controller.Configuration;
 using MediaBrowser.Controller.Entities;
 using MediaBrowser.Controller.Library;
@@ -45,6 +46,10 @@ namespace MediaBrowser.Providers.Music
             {
                 targetItem.Artists = sourceItem.Artists;
             }
+            else
+            {
+                targetItem.Artists = targetItem.Artists.Concat(sourceItem.Artists).Distinct().ToArray();
+            }
         }
     }
 }

MediaBrowser.Providers/Playlists/PlaylistItemsProvider.cs

@@ -1,7 +1,5 @@
 #nullable disable
 
-#pragma warning disable CS1591
-
 using System;
 using System.Collections.Generic;
 using System.IO;
@@ -18,182 +16,212 @@ using MediaBrowser.Model.IO;
 using Microsoft.Extensions.Logging;
 using PlaylistsNET.Content;
 
-namespace MediaBrowser.Providers.Playlists
+namespace MediaBrowser.Providers.Playlists;
+
+/// <summary>
+/// Local playlist provider.
+/// </summary>
+public class PlaylistItemsProvider : ILocalMetadataProvider<Playlist>,
+    IHasOrder,
+    IForcedProvider,
+    IHasItemChangeMonitor
 {
-    public class PlaylistItemsProvider : ICustomMetadataProvider<Playlist>,
-        IHasOrder,
-        IForcedProvider,
-        IPreRefreshProvider,
-        IHasItemChangeMonitor
+    private readonly IFileSystem _fileSystem;
+    private readonly ILibraryManager _libraryManager;
+    private readonly ILogger<PlaylistItemsProvider> _logger;
+    private readonly CollectionType[] _ignoredCollections = [CollectionType.livetv, CollectionType.boxsets, CollectionType.playlists];
+
+    /// <summary>
+    /// Initializes a new instance of the <see cref="PlaylistItemsProvider"/> class.
+    /// </summary>
+    /// <param name="logger">Instance of the <see cref="ILogger{PlaylistItemsProvider}"/> interface.</param>
+    /// <param name="libraryManager">Instance of the <see cref="ILibraryManager"/> interface.</param>
+    /// <param name="fileSystem">Instance of the <see cref="IFileSystem"/> interface.</param>
+    public PlaylistItemsProvider(ILogger<PlaylistItemsProvider> logger, ILibraryManager libraryManager, IFileSystem fileSystem)
     {
-        private readonly IFileSystem _fileSystem;
-        private readonly ILibraryManager _libraryManager;
-        private readonly ILogger<PlaylistItemsProvider> _logger;
-        private readonly CollectionType[] _ignoredCollections = [CollectionType.livetv, CollectionType.boxsets, CollectionType.playlists];
+        _logger = logger;
+        _libraryManager = libraryManager;
+        _fileSystem = fileSystem;
+    }
 
-        public PlaylistItemsProvider(ILogger<PlaylistItemsProvider> logger, ILibraryManager libraryManager, IFileSystem fileSystem)
+    /// <inheritdoc />
+    public string Name => "Playlist Item Provider";
+
+    /// <inheritdoc />
+    public int Order => 100;
+
+    /// <inheritdoc />
+    public Task<MetadataResult<Playlist>> GetMetadata(
+        ItemInfo info,
+        IDirectoryService directoryService,
+        CancellationToken cancellationToken)
+    {
+        var result = new MetadataResult<Playlist>()
         {
-            _logger = logger;
-            _libraryManager = libraryManager;
-            _fileSystem = fileSystem;
+            Item = new Playlist
+            {
+                Path = info.Path
+            }
+        };
+        Fetch(result);
+
+        return Task.FromResult(result);
+    }
+
+    private void Fetch(MetadataResult<Playlist> result)
+    {
+        var item = result.Item;
+        var path = item.Path;
+        if (!Playlist.IsPlaylistFile(path))
+        {
+            return;
         }
 
-        public string Name => "Playlist Reader";
-
-        // Run last
-        public int Order => 100;
-
-        public Task<ItemUpdateType> FetchAsync(Playlist item, MetadataRefreshOptions options, CancellationToken cancellationToken)
+        var extension = Path.GetExtension(path);
+        if (!Playlist.SupportedExtensions.Contains(extension ?? string.Empty, StringComparison.OrdinalIgnoreCase))
         {
-            var path = item.Path;
-            if (!Playlist.IsPlaylistFile(path))
-            {
-                return Task.FromResult(ItemUpdateType.None);
-            }
-
-            var extension = Path.GetExtension(path);
-            if (!Playlist.SupportedExtensions.Contains(extension ?? string.Empty, StringComparison.OrdinalIgnoreCase))
-            {
-                return Task.FromResult(ItemUpdateType.None);
-            }
-
-            var items = GetItems(path, extension).ToArray();
+            return;
+        }
 
+        var items = GetItems(path, extension).ToArray();
+        if (items.Length > 0)
+        {
+            result.HasMetadata = true;
             item.LinkedChildren = items;
-
-            return Task.FromResult(ItemUpdateType.MetadataImport);
         }
 
-        private IEnumerable<LinkedChild> GetItems(string path, string extension)
+        return;
+    }
+
+    private IEnumerable<LinkedChild> GetItems(string path, string extension)
+    {
+        var libraryRoots = _libraryManager.GetUserRootFolder().Children
+                            .OfType<CollectionFolder>()
+                            .Where(f => f.CollectionType.HasValue && !_ignoredCollections.Contains(f.CollectionType.Value))
+                            .SelectMany(f => f.PhysicalLocations)
+                            .Distinct(StringComparer.OrdinalIgnoreCase)
+                            .ToList();
+
+        using (var stream = File.OpenRead(path))
         {
-            var libraryRoots = _libraryManager.GetUserRootFolder().Children
-                                .OfType<CollectionFolder>()
-                                .Where(f => f.CollectionType.HasValue && !_ignoredCollections.Contains(f.CollectionType.Value))
-                                .SelectMany(f => f.PhysicalLocations)
-                                .Distinct(StringComparer.OrdinalIgnoreCase)
-                                .ToList();
-
-            using (var stream = File.OpenRead(path))
+            if (string.Equals(".wpl", extension, StringComparison.OrdinalIgnoreCase))
             {
-                if (string.Equals(".wpl", extension, StringComparison.OrdinalIgnoreCase))
-                {
-                    return GetWplItems(stream, path, libraryRoots);
-                }
-
-                if (string.Equals(".zpl", extension, StringComparison.OrdinalIgnoreCase))
-                {
-                    return GetZplItems(stream, path, libraryRoots);
-                }
-
-                if (string.Equals(".m3u", extension, StringComparison.OrdinalIgnoreCase))
-                {
-                    return GetM3uItems(stream, path, libraryRoots);
-                }
-
-                if (string.Equals(".m3u8", extension, StringComparison.OrdinalIgnoreCase))
-                {
-                    return GetM3uItems(stream, path, libraryRoots);
-                }
-
-                if (string.Equals(".pls", extension, StringComparison.OrdinalIgnoreCase))
-                {
-                    return GetPlsItems(stream, path, libraryRoots);
-                }
+                return GetWplItems(stream, path, libraryRoots);
             }
 
-            return Enumerable.Empty<LinkedChild>();
-        }
-
-        private IEnumerable<LinkedChild> GetPlsItems(Stream stream, string playlistPath, List<string> libraryRoots)
-        {
-            var content = new PlsContent();
-            var playlist = content.GetFromStream(stream);
-
-            return playlist.PlaylistEntries
-                    .Select(i => GetLinkedChild(i.Path, playlistPath, libraryRoots))
-                    .Where(i => i is not null);
-        }
-
-        private IEnumerable<LinkedChild> GetM3uItems(Stream stream, string playlistPath, List<string> libraryRoots)
-        {
-            var content = new M3uContent();
-            var playlist = content.GetFromStream(stream);
-
-            return playlist.PlaylistEntries
-                    .Select(i => GetLinkedChild(i.Path, playlistPath, libraryRoots))
-                    .Where(i => i is not null);
-        }
-
-        private IEnumerable<LinkedChild> GetZplItems(Stream stream, string playlistPath, List<string> libraryRoots)
-        {
-            var content = new ZplContent();
-            var playlist = content.GetFromStream(stream);
-
-            return playlist.PlaylistEntries
-                    .Select(i => GetLinkedChild(i.Path, playlistPath, libraryRoots))
-                    .Where(i => i is not null);
-        }
-
-        private IEnumerable<LinkedChild> GetWplItems(Stream stream, string playlistPath, List<string> libraryRoots)
-        {
-            var content = new WplContent();
-            var playlist = content.GetFromStream(stream);
-
-            return playlist.PlaylistEntries
-                    .Select(i => GetLinkedChild(i.Path, playlistPath, libraryRoots))
-                    .Where(i => i is not null);
-        }
-
-        private LinkedChild GetLinkedChild(string itemPath, string playlistPath, List<string> libraryRoots)
-        {
-            if (TryGetPlaylistItemPath(itemPath, playlistPath, libraryRoots, out var parsedPath))
+            if (string.Equals(".zpl", extension, StringComparison.OrdinalIgnoreCase))
             {
-                return new LinkedChild
-                {
-                    Path = parsedPath,
-                    Type = LinkedChildType.Manual
-                };
+                return GetZplItems(stream, path, libraryRoots);
             }
 
-            return null;
+            if (string.Equals(".m3u", extension, StringComparison.OrdinalIgnoreCase))
+            {
+                return GetM3uItems(stream, path, libraryRoots);
+            }
+
+            if (string.Equals(".m3u8", extension, StringComparison.OrdinalIgnoreCase))
+            {
+                return GetM3uItems(stream, path, libraryRoots);
+            }
+
+            if (string.Equals(".pls", extension, StringComparison.OrdinalIgnoreCase))
+            {
+                return GetPlsItems(stream, path, libraryRoots);
+            }
         }
 
-        private bool TryGetPlaylistItemPath(string itemPath, string playlistPath, List<string> libraryPaths, out string path)
+        return Enumerable.Empty<LinkedChild>();
+    }
+
+    private IEnumerable<LinkedChild> GetPlsItems(Stream stream, string playlistPath, List<string> libraryRoots)
+    {
+        var content = new PlsContent();
+        var playlist = content.GetFromStream(stream);
+
+        return playlist.PlaylistEntries
+                .Select(i => GetLinkedChild(i.Path, playlistPath, libraryRoots))
+                .Where(i => i is not null);
+    }
+
+    private IEnumerable<LinkedChild> GetM3uItems(Stream stream, string playlistPath, List<string> libraryRoots)
+    {
+        var content = new M3uContent();
+        var playlist = content.GetFromStream(stream);
+
+        return playlist.PlaylistEntries
+                .Select(i => GetLinkedChild(i.Path, playlistPath, libraryRoots))
+                .Where(i => i is not null);
+    }
+
+    private IEnumerable<LinkedChild> GetZplItems(Stream stream, string playlistPath, List<string> libraryRoots)
+    {
+        var content = new ZplContent();
+        var playlist = content.GetFromStream(stream);
+
+        return playlist.PlaylistEntries
+                .Select(i => GetLinkedChild(i.Path, playlistPath, libraryRoots))
+                .Where(i => i is not null);
+    }
+
+    private IEnumerable<LinkedChild> GetWplItems(Stream stream, string playlistPath, List<string> libraryRoots)
+    {
+        var content = new WplContent();
+        var playlist = content.GetFromStream(stream);
+
+        return playlist.PlaylistEntries
+                .Select(i => GetLinkedChild(i.Path, playlistPath, libraryRoots))
+                .Where(i => i is not null);
+    }
+
+    private LinkedChild GetLinkedChild(string itemPath, string playlistPath, List<string> libraryRoots)
+    {
+        if (TryGetPlaylistItemPath(itemPath, playlistPath, libraryRoots, out var parsedPath))
         {
-            path = null;
-            string pathToCheck = _fileSystem.MakeAbsolutePath(Path.GetDirectoryName(playlistPath), itemPath);
-            if (!File.Exists(pathToCheck))
+            return new LinkedChild
             {
-                return false;
-            }
+                Path = parsedPath,
+                Type = LinkedChildType.Manual
+            };
+        }
 
-            foreach (var libraryPath in libraryPaths)
-            {
-                if (pathToCheck.StartsWith(libraryPath, StringComparison.OrdinalIgnoreCase))
-                {
-                    path = pathToCheck;
-                    return true;
-                }
-            }
+        return null;
+    }
 
+    private bool TryGetPlaylistItemPath(string itemPath, string playlistPath, List<string> libraryPaths, out string path)
+    {
+        path = null;
+        string pathToCheck = _fileSystem.MakeAbsolutePath(Path.GetDirectoryName(playlistPath), itemPath);
+        if (!File.Exists(pathToCheck))
+        {
             return false;
         }
 
-        public bool HasChanged(BaseItem item, IDirectoryService directoryService)
+        foreach (var libraryPath in libraryPaths)
         {
-            var path = item.Path;
-
-            if (!string.IsNullOrWhiteSpace(path) && item.IsFileProtocol)
+            if (pathToCheck.StartsWith(libraryPath, StringComparison.OrdinalIgnoreCase))
             {
-                var file = directoryService.GetFile(path);
-                if (file is not null && file.LastWriteTimeUtc != item.DateModified)
-                {
-                    _logger.LogDebug("Refreshing {Path} due to date modified timestamp change.", path);
-                    return true;
-                }
+                path = pathToCheck;
+                return true;
             }
-
-            return false;
         }
+
+        return false;
+    }
+
+    /// <inheritdoc />
+    public bool HasChanged(BaseItem item, IDirectoryService directoryService)
+    {
+        var path = item.Path;
+        if (!string.IsNullOrWhiteSpace(path) && item.IsFileProtocol)
+        {
+            var file = directoryService.GetFile(path);
+            if (file is not null && file.LastWriteTimeUtc != item.DateModified)
+            {
+                _logger.LogDebug("Refreshing {Path} due to date modified timestamp change.", path);
+                return true;
+            }
+        }
+
+        return false;
     }
 }

MediaBrowser.Providers/Playlists/PlaylistMetadataService.cs

@@ -1,6 +1,7 @@
 #pragma warning disable CS1591
 
 using System.Collections.Generic;
+using System.Linq;
 using MediaBrowser.Controller.Configuration;
 using MediaBrowser.Controller.Entities;
 using MediaBrowser.Controller.Library;
@@ -49,8 +50,24 @@ namespace MediaBrowser.Providers.Playlists
             if (mergeMetadataSettings)
             {
                 targetItem.PlaylistMediaType = sourceItem.PlaylistMediaType;
-                targetItem.LinkedChildren = sourceItem.LinkedChildren;
-                targetItem.Shares = sourceItem.Shares;
+
+                if (replaceData || targetItem.LinkedChildren.Length == 0)
+                {
+                    targetItem.LinkedChildren = sourceItem.LinkedChildren;
+                }
+                else
+                {
+                    targetItem.LinkedChildren = sourceItem.LinkedChildren.Concat(targetItem.LinkedChildren).Distinct().ToArray();
+                }
+
+                if (replaceData || targetItem.Shares.Count == 0)
+                {
+                    targetItem.Shares = sourceItem.Shares;
+                }
+                else
+                {
+                    targetItem.Shares = sourceItem.Shares.Concat(targetItem.Shares).DistinctBy(s => s.UserId).ToArray();
+                }
             }
         }
     }

MediaBrowser.Providers/Plugins/MusicBrainz/MusicBrainzAlbumProvider.cs

@@ -250,7 +250,7 @@ public class MusicBrainzAlbumProvider : IRemoteMetadataProvider<MusicAlbum, Albu
         // If we have a release ID but not a release group ID, lookup the release group
         if (!string.IsNullOrWhiteSpace(releaseId) && string.IsNullOrWhiteSpace(releaseGroupId))
         {
-            var release = await _musicBrainzQuery.LookupReleaseAsync(new Guid(releaseId), Include.Releases, cancellationToken).ConfigureAwait(false);
+            var release = await _musicBrainzQuery.LookupReleaseAsync(new Guid(releaseId), Include.ReleaseGroups, cancellationToken).ConfigureAwait(false);
             releaseGroupId = release.ReleaseGroup?.Id.ToString();
             result.HasMetadata = true;
         }

MediaBrowser.Providers/TV/SeriesMetadataService.cs

@@ -62,23 +62,7 @@ namespace MediaBrowser.Providers.TV
 
             RemoveObsoleteEpisodes(item);
             RemoveObsoleteSeasons(item);
-            await UpdateAndCreateSeasonsAsync(item, cancellationToken).ConfigureAwait(false);
-        }
-
-        /// <inheritdoc />
-        protected override bool IsFullLocalMetadata(Series item)
-        {
-            if (string.IsNullOrWhiteSpace(item.Overview))
-            {
-                return false;
-            }
-
-            if (!item.ProductionYear.HasValue)
-            {
-                return false;
-            }
-
-            return base.IsFullLocalMetadata(item);
+            await CreateSeasonsAsync(item, cancellationToken).ConfigureAwait(false);
         }
 
         /// <inheritdoc />
@@ -88,24 +72,6 @@ namespace MediaBrowser.Providers.TV
 
             var sourceItem = source.Item;
             var targetItem = target.Item;
-            var sourceSeasonNames = sourceItem.GetSeasonNames();
-            var targetSeasonNames = targetItem.GetSeasonNames();
-
-            if (replaceData)
-            {
-                foreach (var (number, name) in sourceSeasonNames)
-                {
-                    targetItem.SetSeasonName(number, name);
-                }
-            }
-            else
-            {
-                var newSeasons = sourceSeasonNames.Where(s => !targetSeasonNames.ContainsKey(s.Key));
-                foreach (var (number, name) in newSeasons)
-                {
-                    targetItem.SetSeasonName(number, name);
-                }
-            }
 
             if (replaceData || string.IsNullOrEmpty(targetItem.AirTime))
             {
@@ -125,7 +91,7 @@ namespace MediaBrowser.Providers.TV
 
         private void RemoveObsoleteSeasons(Series series)
         {
-            // TODO Legacy. It's not really "physical" seasons as any virtual seasons are always converted to non-virtual in UpdateAndCreateSeasonsAsync.
+            // TODO Legacy. It's not really "physical" seasons as any virtual seasons are always converted to non-virtual in CreateSeasonsAsync.
             var physicalSeasonNumbers = new HashSet<int>();
             var virtualSeasons = new List<Season>();
             foreach (var existingSeason in series.Children.OfType<Season>())
@@ -153,7 +119,8 @@ namespace MediaBrowser.Providers.TV
                         virtualSeason,
                         new DeleteOptions
                         {
-                            DeleteFileLocation = true
+                            // Internal metadata paths are removed regardless of this.
+                            DeleteFileLocation = false
                         },
                         false);
                 }
@@ -162,7 +129,7 @@ namespace MediaBrowser.Providers.TV
 
         private void RemoveObsoleteEpisodes(Series series)
         {
-            var episodes = series.GetEpisodes(null, new DtoOptions()).OfType<Episode>().ToList();
+            var episodes = series.GetEpisodes(null, new DtoOptions(), true).OfType<Episode>().ToList();
             var numberOfEpisodes = episodes.Count;
             // TODO: O(n^2), but can it be done faster without overcomplicating it?
             for (var i = 0; i < numberOfEpisodes; i++)
@@ -210,7 +177,8 @@ namespace MediaBrowser.Providers.TV
                 episode,
                 new DeleteOptions
                 {
-                    DeleteFileLocation = true
+                    // Internal metadata paths are removed regardless of this.
+                    DeleteFileLocation = false
                 },
                 false);
         }
@@ -218,14 +186,12 @@ namespace MediaBrowser.Providers.TV
         /// <summary>
         /// Creates seasons for all episodes if they don't exist.
         /// If no season number can be determined, a dummy season will be created.
-        /// Updates seasons names.
         /// </summary>
         /// <param name="series">The series.</param>
         /// <param name="cancellationToken">The cancellation token.</param>
         /// <returns>The async task.</returns>
-        private async Task UpdateAndCreateSeasonsAsync(Series series, CancellationToken cancellationToken)
+        private async Task CreateSeasonsAsync(Series series, CancellationToken cancellationToken)
         {
-            var seasonNames = series.GetSeasonNames();
             var seriesChildren = series.GetRecursiveChildren(i => i is Episode || i is Season);
             var seasons = seriesChildren.OfType<Season>().ToList();
             var uniqueSeasonNumbers = seriesChildren
@@ -238,21 +204,19 @@ namespace MediaBrowser.Providers.TV
             {
                 // Null season numbers will have a 'dummy' season created because seasons are always required.
                 var existingSeason = seasons.FirstOrDefault(i => i.IndexNumber == seasonNumber);
-
-                if (!seasonNumber.HasValue || !seasonNames.TryGetValue(seasonNumber.Value, out var seasonName))
-                {
-                    seasonName = GetValidSeasonNameForSeries(series, null, seasonNumber);
-                }
-
                 if (existingSeason is null)
                 {
-                    var season = await CreateSeasonAsync(series, seasonName, seasonNumber, cancellationToken).ConfigureAwait(false);
-                    series.AddChild(season);
+                    var seasonName = GetValidSeasonNameForSeries(series, null, seasonNumber);
+                    await CreateSeasonAsync(series, seasonName, seasonNumber, cancellationToken).ConfigureAwait(false);
                 }
-                else if (!existingSeason.LockedFields.Contains(MetadataField.Name) && !string.Equals(existingSeason.Name, seasonName, StringComparison.Ordinal))
+                else if (existingSeason.IsVirtualItem)
                 {
-                    existingSeason.Name = seasonName;
-                    await existingSeason.UpdateToRepositoryAsync(ItemUpdateType.MetadataEdit, cancellationToken).ConfigureAwait(false);
+                    var episodeCount = seriesChildren.OfType<Episode>().Count(e => e.ParentIndexNumber == seasonNumber && !e.IsMissingEpisode);
+                    if (episodeCount > 0)
+                    {
+                        existingSeason.IsVirtualItem = false;
+                        await existingSeason.UpdateToRepositoryAsync(ItemUpdateType.MetadataEdit, cancellationToken).ConfigureAwait(false);
+                    }
                 }
             }
         }
@@ -265,7 +229,7 @@ namespace MediaBrowser.Providers.TV
         /// <param name="seasonNumber">The season number.</param>
         /// <param name="cancellationToken">The cancellation token.</param>
         /// <returns>The newly created season.</returns>
-        private async Task<Season> CreateSeasonAsync(
+        private async Task CreateSeasonAsync(
             Series series,
             string? seasonName,
             int? seasonNumber,
@@ -282,14 +246,12 @@ namespace MediaBrowser.Providers.TV
                     typeof(Season)),
                 IsVirtualItem = false,
                 SeriesId = series.Id,
-                SeriesName = series.Name
+                SeriesName = series.Name,
+                SeriesPresentationUniqueKey = series.GetPresentationUniqueKey()
             };
 
             series.AddChild(season);
-
             await season.RefreshMetadata(new MetadataRefreshOptions(new DirectoryService(FileSystem)), cancellationToken).ConfigureAwait(false);
-
-            return season;
         }
 
         private string GetValidSeasonNameForSeries(Series series, string? seasonName, int? seasonNumber)

MediaBrowser.XbmcMetadata/Parsers/BaseNfoParser.cs

@@ -519,7 +519,9 @@ namespace MediaBrowser.XbmcMetadata.Parsers
                     if (reader.TryReadDateTimeExact(nfoConfiguration.ReleaseDateFormat, out var releaseDate))
                     {
                         item.PremiereDate = releaseDate;
-                        item.ProductionYear = releaseDate.Year;
+
+                        // Production year can already be set by the year tag
+                        item.ProductionYear ??= releaseDate.Year;
                     }
 
                     break;

MediaBrowser.XbmcMetadata/Parsers/SeriesNfoParser.cs

@@ -100,19 +100,10 @@ namespace MediaBrowser.XbmcMetadata.Parsers
                         break;
                     }
 
+                // Season names are processed by SeriesNfoSeasonParser
                 case "namedseason":
-                    {
-                        var parsed = int.TryParse(reader.GetAttribute("number"), NumberStyles.Integer, CultureInfo.InvariantCulture, out var seasonNumber);
-                        var name = reader.ReadElementContentAsString();
-
-                        if (!string.IsNullOrWhiteSpace(name) && parsed)
-                        {
-                            item.SetSeasonName(seasonNumber, name);
-                        }
-
-                        break;
-                    }
-
+                    reader.Skip();
+                    break;
                 default:
                     base.FetchDataFromXmlNode(reader, itemResult);
                     break;

MediaBrowser.XbmcMetadata/Parsers/SeriesNfoSeasonParser.cs

@@ -0,0 +1,60 @@
+using System.Globalization;
+using System.Xml;
+using MediaBrowser.Common.Configuration;
+using MediaBrowser.Controller.Entities.TV;
+using MediaBrowser.Controller.Library;
+using MediaBrowser.Controller.Providers;
+using Microsoft.Extensions.Logging;
+
+namespace MediaBrowser.XbmcMetadata.Parsers
+{
+    /// <summary>
+    /// NFO parser for seasons based on series NFO.
+    /// </summary>
+    public class SeriesNfoSeasonParser : BaseNfoParser<Season>
+    {
+        /// <summary>
+        /// Initializes a new instance of the <see cref="SeriesNfoSeasonParser"/> class.
+        /// </summary>
+        /// <param name="logger">Instance of the <see cref="ILogger"/> interface.</param>
+        /// <param name="config">Instance of the <see cref="IConfigurationManager"/> interface.</param>
+        /// <param name="providerManager">Instance of the <see cref="IProviderManager"/> interface.</param>
+        /// <param name="userManager">Instance of the <see cref="IUserManager"/> interface.</param>
+        /// <param name="userDataManager">Instance of the <see cref="IUserDataManager"/> interface.</param>
+        /// <param name="directoryService">Instance of the <see cref="IDirectoryService"/> interface.</param>
+        public SeriesNfoSeasonParser(
+            ILogger logger,
+            IConfigurationManager config,
+            IProviderManager providerManager,
+            IUserManager userManager,
+            IUserDataManager userDataManager,
+            IDirectoryService directoryService)
+            : base(logger, config, providerManager, userManager, userDataManager, directoryService)
+        {
+        }
+
+        /// <inheritdoc />
+        protected override bool SupportsUrlAfterClosingXmlTag => true;
+
+        /// <inheritdoc />
+        protected override void FetchDataFromXmlNode(XmlReader reader, MetadataResult<Season> itemResult)
+        {
+            var item = itemResult.Item;
+
+            if (reader.Name == "namedseason")
+            {
+                var parsed = int.TryParse(reader.GetAttribute("number"), NumberStyles.Integer, CultureInfo.InvariantCulture, out var seasonNumber);
+                var name = reader.ReadElementContentAsString();
+
+                if (parsed && !string.IsNullOrWhiteSpace(name) && item.IndexNumber.HasValue && seasonNumber == item.IndexNumber.Value)
+                {
+                    item.Name = name;
+                }
+            }
+            else
+            {
+                reader.Skip();
+            }
+        }
+    }
+}

MediaBrowser.XbmcMetadata/Providers/BaseNfoProvider.cs

@@ -42,7 +42,10 @@ namespace MediaBrowser.XbmcMetadata.Providers
 
             try
             {
-                result.Item = new T();
+                result.Item = new T
+                {
+                    IndexNumber = info.IndexNumber
+                };
 
                 Fetch(result, path, cancellationToken);
                 result.HasMetadata = true;

MediaBrowser.XbmcMetadata/Providers/SeriesNfoSeasonProvider.cs

@@ -0,0 +1,89 @@
+using System.IO;
+using System.Threading;
+using MediaBrowser.Common.Configuration;
+using MediaBrowser.Controller.Entities.TV;
+using MediaBrowser.Controller.Library;
+using MediaBrowser.Controller.Providers;
+using MediaBrowser.Model.IO;
+using MediaBrowser.XbmcMetadata.Parsers;
+using Microsoft.Extensions.Logging;
+
+namespace MediaBrowser.XbmcMetadata.Providers
+{
+    /// <summary>
+    /// NFO provider for seasons based on series NFO.
+    /// </summary>
+    public class SeriesNfoSeasonProvider : BaseNfoProvider<Season>
+    {
+        private readonly ILogger<SeriesNfoSeasonProvider> _logger;
+        private readonly IConfigurationManager _config;
+        private readonly IProviderManager _providerManager;
+        private readonly IUserManager _userManager;
+        private readonly IUserDataManager _userDataManager;
+        private readonly IDirectoryService _directoryService;
+        private readonly ILibraryManager _libraryManager;
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="SeriesNfoSeasonProvider"/> class.
+        /// </summary>
+        /// <param name="logger">Instance of the <see cref="ILogger{SeasonFromSeriesNfoProvider}"/> interface.</param>
+        /// <param name="fileSystem">Instance of the <see cref="IFileSystem"/> interface.</param>
+        /// <param name="config">Instance of the <see cref="IConfigurationManager"/> interface.</param>
+        /// <param name="providerManager">Instance of the <see cref="IProviderManager"/> interface.</param>
+        /// <param name="userManager">Instance of the <see cref="IUserManager"/> interface.</param>
+        /// <param name="userDataManager">Instance of the <see cref="IUserDataManager"/> interface.</param>
+        /// <param name="directoryService">Instance of the <see cref="IDirectoryService"/> interface.</param>
+        /// <param name="libraryManager">Instance of the <see cref="ILibraryManager"/> interface.</param>
+        public SeriesNfoSeasonProvider(
+            ILogger<SeriesNfoSeasonProvider> logger,
+            IFileSystem fileSystem,
+            IConfigurationManager config,
+            IProviderManager providerManager,
+            IUserManager userManager,
+            IUserDataManager userDataManager,
+            IDirectoryService directoryService,
+            ILibraryManager libraryManager)
+            : base(fileSystem)
+        {
+            _logger = logger;
+            _config = config;
+            _providerManager = providerManager;
+            _userManager = userManager;
+            _userDataManager = userDataManager;
+            _directoryService = directoryService;
+            _libraryManager = libraryManager;
+        }
+
+        /// <inheritdoc />
+        protected override void Fetch(MetadataResult<Season> result, string path, CancellationToken cancellationToken)
+        {
+            new SeriesNfoSeasonParser(_logger, _config, _providerManager, _userManager, _userDataManager, _directoryService).Fetch(result, path, cancellationToken);
+        }
+
+        /// <inheritdoc />
+        protected override FileSystemMetadata? GetXmlFile(ItemInfo info, IDirectoryService directoryService)
+        {
+            var seasonPath = info.Path;
+            if (seasonPath is not null)
+            {
+                var path = Path.Combine(seasonPath, "tvshow.nfo");
+                if (Path.Exists(path))
+                {
+                    return directoryService.GetFile(path);
+                }
+            }
+
+            var seriesPath = _libraryManager.GetItemById(info.ParentId)?.Path;
+            if (seriesPath is not null)
+            {
+                var path = Path.Combine(seriesPath, "tvshow.nfo");
+                if (Path.Exists(path))
+                {
+                    return directoryService.GetFile(path);
+                }
+            }
+
+            return null;
+        }
+    }
+}

MediaBrowser.XbmcMetadata/Savers/BaseNfoSaver.cs

@@ -825,7 +825,7 @@ namespace MediaBrowser.XbmcMetadata.Savers
         private string GetOutputTrailerUrl(string url)
         {
             // This is what xbmc expects
-            return url.Replace(YouTubeWatchUrl, "plugin://plugin.video.youtube/?action=play_video&videoid=", StringComparison.OrdinalIgnoreCase);
+            return url.Replace(YouTubeWatchUrl, "plugin://plugin.video.youtube/play/?video_id=", StringComparison.OrdinalIgnoreCase);
         }
 
         private void AddImages(BaseItem item, XmlWriter writer, ILibraryManager libraryManager)

MediaBrowser.XbmcMetadata/Savers/MovieNfoSaver.cs

@@ -45,27 +45,24 @@ namespace MediaBrowser.XbmcMetadata.Savers
 
         internal static IEnumerable<string> GetMovieSavePaths(ItemInfo item)
         {
+            var path = item.ContainingFolderPath;
             if (item.VideoType == VideoType.Dvd && !item.IsPlaceHolder)
             {
-                var path = item.ContainingFolderPath;
-
                 yield return Path.Combine(path, "VIDEO_TS", "VIDEO_TS.nfo");
             }
 
+            // only allow movie object to read movie.nfo, not owned videos (which will be itemtype video, not movie)
+            if (!item.IsInMixedFolder && item.ItemType == typeof(Movie))
+            {
+                yield return Path.Combine(path, "movie.nfo");
+            }
+
             if (!item.IsPlaceHolder && (item.VideoType == VideoType.Dvd || item.VideoType == VideoType.BluRay))
             {
-                var path = item.ContainingFolderPath;
-
                 yield return Path.Combine(path, Path.GetFileName(path) + ".nfo");
             }
             else
             {
-                // only allow movie object to read movie.nfo, not owned videos (which will be itemtype video, not movie)
-                if (!item.IsInMixedFolder && item.ItemType == typeof(Movie))
-                {
-                    yield return Path.Combine(item.ContainingFolderPath, "movie.nfo");
-                }
-
                 yield return Path.ChangeExtension(item.Path, ".nfo");
             }
         }

SharedVersion.cs

@@ -1,4 +1,4 @@
 using System.Reflection;
 
-[assembly: AssemblyVersion("10.9.3")]
-[assembly: AssemblyFileVersion("10.9.3")]
+[assembly: AssemblyVersion("10.9.11")]
+[assembly: AssemblyFileVersion("10.9.11")]

src/Jellyfin.Drawing/ImageProcessor.cs

@@ -102,7 +102,8 @@ public sealed class ImageProcessor : IImageProcessor, IDisposable
             "astc",
             "ktx",
             "pkm",
-            "wbmp"
+            "wbmp",
+            "avif"
         };
 
     /// <inheritdoc />

src/Jellyfin.Extensions/FormattingStreamWriter.cs

@@ -0,0 +1,38 @@
+using System;
+using System.IO;
+
+namespace Jellyfin.Extensions;
+
+/// <summary>
+/// A custom StreamWriter which supports setting a IFormatProvider.
+/// </summary>
+public class FormattingStreamWriter : StreamWriter
+{
+    private readonly IFormatProvider _formatProvider;
+
+    /// <summary>
+    /// Initializes a new instance of the <see cref="FormattingStreamWriter"/> class.
+    /// </summary>
+    /// <param name="stream">The stream to write to.</param>
+    /// <param name="formatProvider">The format provider to use.</param>
+    public FormattingStreamWriter(Stream stream, IFormatProvider formatProvider)
+        : base(stream)
+    {
+        _formatProvider = formatProvider;
+    }
+
+    /// <summary>
+    /// Initializes a new instance of the <see cref="FormattingStreamWriter"/> class.
+    /// </summary>
+    /// <param name="path">The complete file path to write to.</param>
+    /// <param name="formatProvider">The format provider to use.</param>
+    public FormattingStreamWriter(string path, IFormatProvider formatProvider)
+        : base(path)
+    {
+        _formatProvider = formatProvider;
+    }
+
+    /// <inheritdoc />
+    public override IFormatProvider FormatProvider
+        => _formatProvider;
+}

src/Jellyfin.Extensions/Jellyfin.Extensions.csproj

@@ -15,7 +15,7 @@
   <PropertyGroup>
     <Authors>Jellyfin Contributors</Authors>
     <PackageId>Jellyfin.Extensions</PackageId>
-    <VersionPrefix>10.9.3</VersionPrefix>
+    <VersionPrefix>10.9.11</VersionPrefix>
     <RepositoryUrl>https://github.com/jellyfin/jellyfin</RepositoryUrl>
     <PackageLicenseExpression>GPL-3.0-only</PackageLicenseExpression>
   </PropertyGroup>

src/Jellyfin.Extensions/StreamExtensions.cs

@@ -1,7 +1,9 @@
 using System.Collections.Generic;
 using System.IO;
 using System.Linq;
+using System.Runtime.CompilerServices;
 using System.Text;
+using System.Threading;
 
 namespace Jellyfin.Extensions
 {
@@ -48,11 +50,12 @@ namespace Jellyfin.Extensions
         /// Reads all lines in the <see cref="TextReader" />.
         /// </summary>
         /// <param name="reader">The <see cref="TextReader" /> to read from.</param>
+        /// <param name="cancellationToken">The token to monitor for cancellation requests.</param>
         /// <returns>All lines in the stream.</returns>
-        public static async IAsyncEnumerable<string> ReadAllLinesAsync(this TextReader reader)
+        public static async IAsyncEnumerable<string> ReadAllLinesAsync(this TextReader reader, [EnumeratorCancellation] CancellationToken cancellationToken = default)
         {
             string? line;
-            while ((line = await reader.ReadLineAsync().ConfigureAwait(false)) is not null)
+            while ((line = await reader.ReadLineAsync(cancellationToken).ConfigureAwait(false)) is not null)
             {
                 yield return line;
             }

src/Jellyfin.LiveTv/Listings/XmlTvListingsProvider.cs

@@ -167,7 +167,7 @@ namespace Jellyfin.LiveTv.Listings
                 Overview = program.Description,
                 ProductionYear = program.CopyrightDate?.Year,
                 SeasonNumber = program.Episode.Series,
-                IsSeries = program.Episode.Series is not null,
+                IsSeries = program.Episode.Episode is not null,
                 IsRepeat = program.IsPreviouslyShown && !program.IsNew,
                 IsPremiere = program.Premiere is not null,
                 IsKids = programCategories.Any(c => info.KidsCategories.Contains(c, StringComparison.OrdinalIgnoreCase)),

src/Jellyfin.Networking/Manager/NetworkManager.cs

@@ -919,10 +919,14 @@ public class NetworkManager : INetworkManager, IDisposable
     {
         ArgumentNullException.ThrowIfNull(address);
 
-        // See conversation at https://github.com/jellyfin/jellyfin/pull/3515.
+        // Map IPv6 mapped IPv4 back to IPv4 (happens if Kestrel runs in dual-socket mode)
+        if (address.IsIPv4MappedToIPv6)
+        {
+            address = address.MapToIPv4();
+        }
+
         if ((TrustAllIPv6Interfaces && address.AddressFamily == AddressFamily.InterNetworkV6)
-            || address.Equals(IPAddress.Loopback)
-            || address.Equals(IPAddress.IPv6Loopback))
+            || IPAddress.IsLoopback(address))
         {
             return true;
         }

tests/Jellyfin.Api.Tests/Auth/FirstTimeSetupPolicy/FirstTimeSetupHandlerTests.cs

@@ -1,14 +1,19 @@
+using System;
 using System.Collections.Generic;
 using System.Security.Claims;
 using System.Threading.Tasks;
 using AutoFixture;
 using AutoFixture.AutoMoq;
+using Jellyfin.Api.Auth.DefaultAuthorizationPolicy;
 using Jellyfin.Api.Auth.FirstTimeSetupPolicy;
 using Jellyfin.Api.Constants;
+using Jellyfin.Data.Entities;
+using Jellyfin.Data.Enums;
 using MediaBrowser.Common.Configuration;
 using MediaBrowser.Controller.Library;
 using Microsoft.AspNetCore.Authorization;
 using Microsoft.AspNetCore.Http;
+using Microsoft.Extensions.DependencyInjection;
 using Moq;
 using Xunit;
 
@@ -18,7 +23,9 @@ namespace Jellyfin.Api.Tests.Auth.FirstTimeSetupPolicy
     {
         private readonly Mock<IConfigurationManager> _configurationManagerMock;
         private readonly List<IAuthorizationRequirement> _requirements;
+        private readonly DefaultAuthorizationHandler _defaultAuthorizationHandler;
         private readonly FirstTimeSetupHandler _firstTimeSetupHandler;
+        private readonly IAuthorizationService _authorizationService;
         private readonly Mock<IUserManager> _userManagerMock;
         private readonly Mock<IHttpContextAccessor> _httpContextAccessor;
 
@@ -31,6 +38,21 @@ namespace Jellyfin.Api.Tests.Auth.FirstTimeSetupPolicy
             _httpContextAccessor = fixture.Freeze<Mock<IHttpContextAccessor>>();
 
             _firstTimeSetupHandler = fixture.Create<FirstTimeSetupHandler>();
+            _defaultAuthorizationHandler = fixture.Create<DefaultAuthorizationHandler>();
+
+            var services = new ServiceCollection();
+            services.AddAuthorizationCore();
+            services.AddLogging();
+            services.AddOptions();
+            services.AddSingleton<IAuthorizationHandler>(_defaultAuthorizationHandler);
+            services.AddSingleton<IAuthorizationHandler>(_firstTimeSetupHandler);
+            services.AddAuthorization(options =>
+            {
+                options.AddPolicy("FirstTime", policy => policy.Requirements.Add(new FirstTimeSetupRequirement()));
+                options.AddPolicy("FirstTimeNoAdmin", policy => policy.Requirements.Add(new FirstTimeSetupRequirement(false, false)));
+                options.AddPolicy("FirstTimeSchedule", policy => policy.Requirements.Add(new FirstTimeSetupRequirement(true, false)));
+            });
+            _authorizationService = services.BuildServiceProvider().GetRequiredService<IAuthorizationService>();
         }
 
         [Theory]
@@ -45,10 +67,9 @@ namespace Jellyfin.Api.Tests.Auth.FirstTimeSetupPolicy
                 _httpContextAccessor,
                 userRole);
 
-            var context = new AuthorizationHandlerContext(_requirements, claims, null);
+            var allowed = await _authorizationService.AuthorizeAsync(claims, "FirstTime");
 
-            await _firstTimeSetupHandler.HandleAsync(context);
-            Assert.True(context.HasSucceeded);
+            Assert.True(allowed.Succeeded);
         }
 
         [Theory]
@@ -63,17 +84,16 @@ namespace Jellyfin.Api.Tests.Auth.FirstTimeSetupPolicy
                 _httpContextAccessor,
                 userRole);
 
-            var context = new AuthorizationHandlerContext(_requirements, claims, null);
+            var allowed = await _authorizationService.AuthorizeAsync(claims, "FirstTime");
 
-            await _firstTimeSetupHandler.HandleAsync(context);
-            Assert.Equal(shouldSucceed, context.HasSucceeded);
+            Assert.Equal(shouldSucceed, allowed.Succeeded);
         }
 
         [Theory]
         [InlineData(UserRoles.Administrator, true)]
         [InlineData(UserRoles.Guest, false)]
         [InlineData(UserRoles.User, true)]
-        public async Task ShouldRequireUserIfNotRequiresAdmin(string userRole, bool shouldSucceed)
+        public async Task ShouldRequireUserIfNotAdministrator(string userRole, bool shouldSucceed)
         {
             TestHelpers.SetupConfigurationManager(_configurationManagerMock, true);
             var claims = TestHelpers.SetupUser(
@@ -81,24 +101,26 @@ namespace Jellyfin.Api.Tests.Auth.FirstTimeSetupPolicy
                 _httpContextAccessor,
                 userRole);
 
-            var context = new AuthorizationHandlerContext(
-                new List<IAuthorizationRequirement> { new FirstTimeSetupRequirement(false, false) },
-                claims,
-                null);
+            var allowed = await _authorizationService.AuthorizeAsync(claims, "FirstTimeNoAdmin");
 
-            await _firstTimeSetupHandler.HandleAsync(context);
-            Assert.Equal(shouldSucceed, context.HasSucceeded);
+            Assert.Equal(shouldSucceed, allowed.Succeeded);
         }
 
         [Fact]
-        public async Task ShouldAllowAdminApiKeyIfStartupWizardComplete()
+        public async Task ShouldDisallowUserIfOutsideSchedule()
         {
-            TestHelpers.SetupConfigurationManager(_configurationManagerMock, true);
-            var claims = new ClaimsPrincipal(new ClaimsIdentity([new Claim(ClaimTypes.Role, UserRoles.Administrator)]));
-            var context = new AuthorizationHandlerContext(_requirements, claims, null);
+            AccessSchedule[] accessSchedules = { new AccessSchedule(DynamicDayOfWeek.Everyday, 0, 0, Guid.Empty) };
 
-            await _firstTimeSetupHandler.HandleAsync(context);
-            Assert.True(context.HasSucceeded);
+            TestHelpers.SetupConfigurationManager(_configurationManagerMock, true);
+            var claims = TestHelpers.SetupUser(
+                _userManagerMock,
+                _httpContextAccessor,
+                UserRoles.User,
+                accessSchedules);
+
+            var allowed = await _authorizationService.AuthorizeAsync(claims, "FirstTimeSchedule");
+
+            Assert.False(allowed.Succeeded);
         }
     }
 }

tests/Jellyfin.Controller.Tests/Entities/BaseItemTests.cs

@@ -1,4 +1,7 @@
 using MediaBrowser.Controller.Entities;
+using MediaBrowser.Controller.Library;
+using MediaBrowser.Model.MediaInfo;
+using Moq;
 using Xunit;
 
 namespace Jellyfin.Controller.Tests.Entities;
@@ -14,4 +17,30 @@ public class BaseItemTests
     [InlineData("1test 2", "0000000001test 0000000002")]
     public void BaseItem_ModifySortChunks_Valid(string input, string expected)
         => Assert.Equal(expected, BaseItem.ModifySortChunks(input));
+
+    [Theory]
+    [InlineData("/Movies/Ted/Ted.mp4", "/Movies/Ted/Ted - Unrated Edition.mp4", "Ted", "Unrated Edition")]
+    [InlineData("/Movies/Deadpool 2 (2018)/Deadpool 2 (2018).mkv", "/Movies/Deadpool 2 (2018)/Deadpool 2 (2018) - Super Duper Cut.mkv", "Deadpool 2 (2018)", "Super Duper Cut")]
+    public void GetMediaSourceName_Valid(string primaryPath, string altPath, string name, string altName)
+    {
+        var mediaSourceManager = new Mock<IMediaSourceManager>();
+        mediaSourceManager.Setup(x => x.GetPathProtocol(It.IsAny<string>()))
+                .Returns((string x) => MediaProtocol.File);
+        BaseItem.MediaSourceManager = mediaSourceManager.Object;
+
+        var video = new Video()
+        {
+            Path = primaryPath
+        };
+
+        var videoAlt = new Video()
+        {
+            Path = altPath,
+        };
+
+        video.LocalAlternateVersions = [videoAlt.Path];
+
+        Assert.Equal(name, video.GetMediaSourceName(video));
+        Assert.Equal(altName, video.GetMediaSourceName(videoAlt));
+    }
 }

tests/Jellyfin.Extensions.Tests/FormattingStreamWriterTests.cs

@@ -0,0 +1,23 @@
+using System.Globalization;
+using System.IO;
+using System.Text;
+using System.Threading;
+using Xunit;
+
+namespace Jellyfin.Extensions.Tests;
+
+public static class FormattingStreamWriterTests
+{
+    [Fact]
+    public static void Shuffle_Valid_Correct()
+    {
+        Thread.CurrentThread.CurrentCulture = new CultureInfo("de-DE", false);
+        using (var ms = new MemoryStream())
+        using (var txt = new FormattingStreamWriter(ms, CultureInfo.InvariantCulture))
+        {
+            txt.Write("{0}", 3.14159);
+            txt.Close();
+            Assert.Equal("3.14159", Encoding.UTF8.GetString(ms.ToArray()));
+        }
+    }
+}