Fix invalid regex comparison

Fix GHSA-8fw7-f233-ffr8 with improved sanitization

.github/CODEOWNERS

@@ -1,11 +1,4 @@
-# Joshua must review all changes to bump_version and any files it touches
-bump_version                                            @joshuaboniface
-.github/ISSUE_TEMPLATE                                  @joshuaboniface
-MediaBrowser.Common/MediaBrowser.Common.csproj          @joshuaboniface
-Jellyfin.Data/Jellyfin.Data.csproj                      @joshuaboniface
-MediaBrowser.Controller/MediaBrowser.Controller.csproj  @joshuaboniface
-MediaBrowser.Model/MediaBrowser.Model.csproj            @joshuaboniface
-Emby.Naming/Emby.Naming.csproj                          @joshuaboniface
-src/Jellyfin.Extensions/Jellyfin.Extensions.csproj      @joshuaboniface
-# Core must approve all changes within the repo config
-.github/                                                @jellyfin/core
+# Joshua must review all changes to deployment and build.sh
+.ci/*           @joshuaboniface
+deployment/*    @joshuaboniface
+build.sh        @joshuaboniface

.github/ISSUE_TEMPLATE/issue report.yml

@@ -87,10 +87,7 @@ body:
       label: Jellyfin Server version
       description: What version of Jellyfin are you using?
       options:
-        - 10.11.3
-        - 10.11.2
-        - 10.11.1
-        - 10.11.0
+        - 10.10.0+
         - Master
         - Unstable
         - Older*

.github/workflows/ci-codeql-analysis.yml

@@ -20,18 +20,18 @@ jobs:
 
     steps:
     - name: Checkout repository
-      uses: actions/checkout@1af3b93b6815bc44a9784bd300feb67ff0d1eeb3 # v6.0.0
+      uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6.0.1
     - name: Setup .NET
       uses: actions/setup-dotnet@2016bd2012dba4e32de620c46fe006a3ac9f0602 # v5.0.1
       with:
         dotnet-version: '9.0.x'
 
     - name: Initialize CodeQL
-      uses: github/codeql-action/init@fdbfb4d2750291e159f0156def62b853c2798ca2 # v4.31.5
+      uses: github/codeql-action/init@fe4161a26a8629af62121b670040955b330f9af2 # v4.31.6
       with:
         languages: ${{ matrix.language }}
         queries: +security-extended
     - name: Autobuild
-      uses: github/codeql-action/autobuild@fdbfb4d2750291e159f0156def62b853c2798ca2 # v4.31.5
+      uses: github/codeql-action/autobuild@fe4161a26a8629af62121b670040955b330f9af2 # v4.31.6
     - name: Perform CodeQL Analysis
-      uses: github/codeql-action/analyze@fdbfb4d2750291e159f0156def62b853c2798ca2 # v4.31.5
+      uses: github/codeql-action/analyze@fe4161a26a8629af62121b670040955b330f9af2 # v4.31.6

.github/workflows/ci-compat.yml

@@ -11,7 +11,7 @@ jobs:
     permissions: read-all
     steps:
       - name: Checkout repository
-        uses: actions/checkout@1af3b93b6815bc44a9784bd300feb67ff0d1eeb3 # v6.0.0
+        uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6.0.1
         with:
           ref: ${{ github.event.pull_request.head.sha }}
           repository: ${{ github.event.pull_request.head.repo.full_name }}
@@ -40,7 +40,7 @@ jobs:
     permissions: read-all
     steps:
       - name: Checkout repository
-        uses: actions/checkout@1af3b93b6815bc44a9784bd300feb67ff0d1eeb3 # v6.0.0
+        uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6.0.1
         with:
           ref: ${{ github.event.pull_request.head.sha }}
           repository: ${{ github.event.pull_request.head.repo.full_name }}

.github/workflows/ci-openapi.yml

@@ -16,7 +16,7 @@ jobs:
     permissions: read-all
     steps:
       - name: Checkout repository
-        uses: actions/checkout@1af3b93b6815bc44a9784bd300feb67ff0d1eeb3 # v6.0.0
+        uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6.0.1
         with:
           ref: ${{ github.event.pull_request.head.sha }}
           repository: ${{ github.event.pull_request.head.repo.full_name }}
@@ -41,7 +41,7 @@ jobs:
     permissions: read-all
     steps:
       - name: Checkout repository
-        uses: actions/checkout@1af3b93b6815bc44a9784bd300feb67ff0d1eeb3 # v6.0.0
+        uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6.0.1
         with:
           ref: ${{ github.event.pull_request.head.sha }}
           repository: ${{ github.event.pull_request.head.repo.full_name }}

.github/workflows/ci-tests.yml

@@ -20,7 +20,7 @@ jobs:
 
     runs-on: "${{ matrix.os }}"
     steps:
-      - uses: actions/checkout@1af3b93b6815bc44a9784bd300feb67ff0d1eeb3 # v6.0.0
+      - uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6.0.1
 
       - uses: actions/setup-dotnet@2016bd2012dba4e32de620c46fe006a3ac9f0602 # v5.0.1
         with:
@@ -35,7 +35,7 @@ jobs:
           --verbosity minimal
 
       - name: Merge code coverage results
-        uses: danielpalme/ReportGenerator-GitHub-Action@dcdfb6e704e87df6b2ed0cf123a6c9f69e364869 # v5.5.0
+        uses: danielpalme/ReportGenerator-GitHub-Action@ee0ae774f6d3afedcbd1683c1ab21b83670bdf8e # v5.5.1
         with:
           reports: "**/coverage.cobertura.xml"
           targetdir: "merged/"

.github/workflows/commands.yml

@@ -24,7 +24,7 @@ jobs:
           reactions: '+1'
 
       - name: Checkout the latest code
-        uses: actions/checkout@1af3b93b6815bc44a9784bd300feb67ff0d1eeb3 # v6.0.0
+        uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6.0.1
         with:
           token: ${{ secrets.JF_BOT_TOKEN }}
           fetch-depth: 0
@@ -40,7 +40,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: pull in script
-        uses: actions/checkout@1af3b93b6815bc44a9784bd300feb67ff0d1eeb3 # v6.0.0
+        uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6.0.1
         with:
           repository: jellyfin/jellyfin-triage-script
       - name: install python

.github/workflows/issue-stale.yml

@@ -16,7 +16,7 @@ jobs:
     runs-on: ubuntu-latest
     if: ${{ contains(github.repository, 'jellyfin/') }}
     steps:
-      - uses: actions/stale@5f858e3efba33a5ca4407a664cc011ad407f2008 # v10.1.0
+      - uses: actions/stale@997185467fa4f803885201cee163a9f38240193d # v10.1.1
         with:
           repo-token: ${{ secrets.JF_BOT_TOKEN }}
           ascending: true

.github/workflows/issue-template-check.yml

@@ -10,7 +10,7 @@ jobs:
       issues: write
     steps:
       - name: pull in script
-        uses: actions/checkout@1af3b93b6815bc44a9784bd300feb67ff0d1eeb3 # v6.0.0
+        uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6.0.1
         with:
           repository: jellyfin/jellyfin-triage-script
       - name: install python

.github/workflows/pull-request-stale.yaml

@@ -15,7 +15,7 @@ jobs:
     runs-on: ubuntu-latest
     if: ${{ contains(github.repository, 'jellyfin/') }}
     steps:
-      - uses: actions/stale@5f858e3efba33a5ca4407a664cc011ad407f2008 # v10.1.0
+      - uses: actions/stale@997185467fa4f803885201cee163a9f38240193d # v10.1.1
         with:
           repo-token: ${{ secrets.JF_BOT_TOKEN }}
           ascending: true

.github/workflows/release-bump-version.yaml

@@ -33,7 +33,7 @@ jobs:
           yq-version: v4.9.8
 
       - name: Checkout Repository
-        uses: actions/checkout@1af3b93b6815bc44a9784bd300feb67ff0d1eeb3 # v6.0.0
+        uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6.0.1
         with:
           ref: ${{ env.TAG_BRANCH }}
 
@@ -66,7 +66,7 @@ jobs:
       NEXT_VERSION: ${{ github.event.inputs.NEXT_VERSION }}
     steps:
       - name: Checkout Repository
-        uses: actions/checkout@1af3b93b6815bc44a9784bd300feb67ff0d1eeb3 # v6.0.0
+        uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6.0.1
         with:
           ref: ${{ env.TAG_BRANCH }}
 

CONTRIBUTORS.md

@@ -117,6 +117,7 @@
  - [sachk](https://github.com/sachk)
  - [sammyrc34](https://github.com/sammyrc34)
  - [samuel9554](https://github.com/samuel9554)
+ - [SapientGuardian](https://github.com/SapientGuardian)
  - [scheidleon](https://github.com/scheidleon)
  - [sebPomme](https://github.com/sebPomme)
  - [SegiH](https://github.com/SegiH)
@@ -205,6 +206,8 @@
  - [theshoeshiner](https://github.com/theshoeshiner)
  - [TokerX](https://github.com/TokerX)
  - [GeneMarks](https://github.com/GeneMarks)
+ - [martenumberto](https://github.com/martenumberto)
+ - [MarcoCoreDuo](https://github.com/MarcoCoreDuo)
 
 # Emby Contributors
 

Directory.Packages.props

@@ -4,7 +4,7 @@
   </PropertyGroup>
   <!-- Run "dotnet list package (dash,dash)outdated" to see the latest versions of each package.-->
   <ItemGroup Label="Package Dependencies">
-    <PackageVersion Include="AsyncKeyedLock" Version="7.1.7" />
+    <PackageVersion Include="AsyncKeyedLock" Version="7.1.8" />
     <PackageVersion Include="AutoFixture.AutoMoq" Version="4.18.1" />
     <PackageVersion Include="AutoFixture.Xunit2" Version="4.18.1" />
     <PackageVersion Include="AutoFixture" Version="4.18.1" />
@@ -96,4 +96,4 @@
     <PackageVersion Include="Xunit.SkippableFact" Version="1.5.23" />
     <PackageVersion Include="xunit" Version="2.9.3" />
   </ItemGroup>
-</Project>
+</Project>

Emby.Naming/Emby.Naming.csproj

@@ -36,7 +36,7 @@
   <PropertyGroup>
     <Authors>Jellyfin Contributors</Authors>
     <PackageId>Jellyfin.Naming</PackageId>
-    <VersionPrefix>10.12.0</VersionPrefix>
+    <VersionPrefix>10.11.7</VersionPrefix>
     <RepositoryUrl>https://github.com/jellyfin/jellyfin</RepositoryUrl>
     <PackageLicenseExpression>GPL-3.0-only</PackageLicenseExpression>
   </PropertyGroup>

Emby.Naming/TV/SeriesResolver.cs

@@ -17,13 +17,6 @@ namespace Emby.Naming.TV
         [GeneratedRegex(@"((?<a>[^\._]{2,})[\._]*)|([\._](?<b>[^\._]{2,}))")]
         private static partial Regex SeriesNameRegex();
 
-        /// <summary>
-        /// Regex that matches titles with year in parentheses. Captures the title (which may be
-        /// numeric) before the year, i.e. turns "1923 (2022)" into "1923".
-        /// </summary>
-        [GeneratedRegex(@"(?<title>.+?)\s*\(\d{4}\)")]
-        private static partial Regex TitleWithYearRegex();
-
         /// <summary>
         /// Resolve information about series from path.
         /// </summary>
@@ -34,20 +27,6 @@ namespace Emby.Naming.TV
         {
             string seriesName = Path.GetFileName(path);
 
-            // First check if the filename matches a title with year pattern (handles numeric titles)
-            if (!string.IsNullOrEmpty(seriesName))
-            {
-                var titleWithYearMatch = TitleWithYearRegex().Match(seriesName);
-                if (titleWithYearMatch.Success)
-                {
-                    seriesName = titleWithYearMatch.Groups["title"].Value.Trim();
-                    return new SeriesInfo(path)
-                    {
-                        Name = seriesName
-                    };
-                }
-            }
-
             SeriesPathParserResult result = SeriesPathParser.Parse(options, path);
             if (result.Success)
             {

Emby.Server.Implementations/Dto/DtoService.cs

@@ -1051,16 +1051,16 @@ namespace Emby.Server.Implementations.Dto
 
                 // Include artists that are not in the database yet, e.g., just added via metadata editor
                 // var foundArtists = artistItems.Items.Select(i => i.Item1.Name).ToList();
-                dto.ArtistItems = _libraryManager.GetArtists([.. hasArtist.Artists.Where(e => !string.IsNullOrWhiteSpace(e))])
-                    .Where(e => e.Value.Length > 0)
-                    .Select(i =>
-                    {
-                        return new NameGuidPair
-                        {
-                            Name = i.Key,
-                            Id = i.Value.First().Id
-                        };
-                    }).Where(i => i is not null).ToArray();
+                var artistsLookup = _libraryManager.GetArtists([.. hasArtist.Artists.Where(e => !string.IsNullOrWhiteSpace(e))]);
+
+                dto.ArtistItems = hasArtist.Artists
+                    .Where(name => !string.IsNullOrWhiteSpace(name))
+                    .Distinct()
+                    .Select(name => artistsLookup.TryGetValue(name, out var artists) && artists.Length > 0
+                        ? new NameGuidPair { Name = name, Id = artists[0].Id }
+                        : null)
+                    .Where(item => item is not null)
+                    .ToArray();
             }
 
             if (item is IHasAlbumArtist hasAlbumArtist)
@@ -1085,31 +1085,16 @@ namespace Emby.Server.Implementations.Dto
                 //    })
                 //    .ToList();
 
+                var albumArtistsLookup = _libraryManager.GetArtists([.. hasAlbumArtist.AlbumArtists.Where(e => !string.IsNullOrWhiteSpace(e))]);
+
                 dto.AlbumArtists = hasAlbumArtist.AlbumArtists
-                    // .Except(foundArtists, new DistinctNameComparer())
-                    .Select(i =>
-                    {
-                        // This should not be necessary but we're seeing some cases of it
-                        if (string.IsNullOrEmpty(i))
-                        {
-                            return null;
-                        }
-
-                        var artist = _libraryManager.GetArtist(i, new DtoOptions(false)
-                        {
-                            EnableImages = false
-                        });
-                        if (artist is not null)
-                        {
-                            return new NameGuidPair
-                            {
-                                Name = artist.Name,
-                                Id = artist.Id
-                            };
-                        }
-
-                        return null;
-                    }).Where(i => i is not null).ToArray();
+                    .Where(name => !string.IsNullOrWhiteSpace(name))
+                    .Distinct()
+                    .Select(name => albumArtistsLookup.TryGetValue(name, out var albumArtists) && albumArtists.Length > 0
+                        ? new NameGuidPair { Name = name, Id = albumArtists[0].Id }
+                        : null)
+                    .Where(item => item is not null)
+                    .ToArray();
             }
 
             // Add video info

Emby.Server.Implementations/IO/LibraryMonitor.cs

@@ -352,6 +352,12 @@ namespace Emby.Server.Implementations.IO
                 return;
             }
 
+            var fileInfo = _fileSystem.GetFileSystemInfo(path);
+            if (DotIgnoreIgnoreRule.IsIgnored(fileInfo, null))
+            {
+                return;
+            }
+
             // Ignore certain files, If the parent of an ignored path has a change event, ignore that too
             foreach (var i in _tempIgnoredPaths.Keys)
             {

Emby.Server.Implementations/IO/ManagedFileSystem.cs

@@ -497,8 +497,17 @@ namespace Emby.Server.Implementations.IO
         /// <inheritdoc />
         public virtual bool AreEqual(string path1, string path2)
         {
-            return Path.TrimEndingDirectorySeparator(path1).Equals(
-                Path.TrimEndingDirectorySeparator(path2),
+            if (string.IsNullOrWhiteSpace(path1) || string.IsNullOrWhiteSpace(path2))
+            {
+                return false;
+            }
+
+            var normalized1 = Path.TrimEndingDirectorySeparator(path1);
+            var normalized2 = Path.TrimEndingDirectorySeparator(path2);
+
+            return string.Equals(
+                normalized1,
+                normalized2,
                 _isEnvironmentCaseInsensitive ? StringComparison.OrdinalIgnoreCase : StringComparison.Ordinal);
         }
 

Emby.Server.Implementations/Images/BaseDynamicImageProvider.cs

@@ -267,22 +267,24 @@ namespace Emby.Server.Implementations.Images
         {
             var image = item.GetImageInfo(type, 0);
 
-            if (image is not null)
+            if (image is null)
             {
-                if (!image.IsLocalFile)
-                {
-                    return false;
-                }
+                return GetItemsWithImages(item).Count is not 0;
+            }
 
-                if (!FileSystem.ContainsSubPath(item.GetInternalMetadataPath(), image.Path))
-                {
-                    return false;
-                }
+            if (!image.IsLocalFile)
+            {
+                return false;
+            }
 
-                if (!HasChangedByDate(item, image))
-                {
-                    return false;
-                }
+            if (!FileSystem.ContainsSubPath(item.GetInternalMetadataPath(), image.Path))
+            {
+                return false;
+            }
+
+            if (!HasChangedByDate(item, image))
+            {
+                return false;
             }
 
             return true;

Emby.Server.Implementations/Images/CollectionFolderImageProvider.cs

@@ -98,5 +98,11 @@ namespace Emby.Server.Implementations.Images
 
             return base.CreateImage(item, itemsWithImages, outputPath, imageType, imageIndex);
         }
+
+        protected override bool HasChangedByDate(BaseItem item, ItemImageInfo image)
+        {
+            var age = DateTime.UtcNow - image.DateModified;
+            return age.TotalDays > 7;
+        }
     }
 }

Emby.Server.Implementations/Library/DotIgnoreIgnoreRule.cs

@@ -1,5 +1,6 @@
 using System;
 using System.IO;
+using System.Text.RegularExpressions;
 using MediaBrowser.Controller.Entities;
 using MediaBrowser.Controller.IO;
 using MediaBrowser.Controller.Resolvers;
@@ -70,12 +71,55 @@ public class DotIgnoreIgnoreRule : IResolverIgnoreRule
     {
         // If file has content, base ignoring off the content .gitignore-style rules
         var rules = ignoreFileContent.Split('\n', StringSplitOptions.RemoveEmptyEntries | StringSplitOptions.TrimEntries);
+        return CheckIgnoreRules(path, rules, isDirectory);
+    }
+
+    /// <summary>
+    /// Checks whether a path should be ignored based on an array of ignore rules.
+    /// </summary>
+    /// <param name="path">The path to check.</param>
+    /// <param name="rules">The array of ignore rules.</param>
+    /// <param name="isDirectory">Whether the path is a directory.</param>
+    /// <returns>True if the path should be ignored.</returns>
+    internal static bool CheckIgnoreRules(string path, string[] rules, bool isDirectory)
+        => CheckIgnoreRules(path, rules, isDirectory, IsWindows);
+
+    /// <summary>
+    /// Checks whether a path should be ignored based on an array of ignore rules.
+    /// </summary>
+    /// <param name="path">The path to check.</param>
+    /// <param name="rules">The array of ignore rules.</param>
+    /// <param name="isDirectory">Whether the path is a directory.</param>
+    /// <param name="normalizePath">Whether to normalize backslashes to forward slashes (for Windows paths).</param>
+    /// <returns>True if the path should be ignored.</returns>
+    internal static bool CheckIgnoreRules(string path, string[] rules, bool isDirectory, bool normalizePath)
+    {
         var ignore = new Ignore.Ignore();
-        ignore.Add(rules);
+
+        // Add each rule individually to catch and skip invalid patterns
+        var validRulesAdded = 0;
+        foreach (var rule in rules)
+        {
+            try
+            {
+                ignore.Add(rule);
+                validRulesAdded++;
+            }
+            catch (RegexParseException)
+            {
+                // Ignore invalid patterns
+            }
+        }
+
+        // If no valid rules were added, fall back to ignoring everything (like an empty .ignore file)
+        if (validRulesAdded == 0)
+        {
+            return true;
+        }
 
          // Mitigate the problem of the Ignore library not handling Windows paths correctly.
          // See https://github.com/jellyfin/jellyfin/issues/15484
-        var pathToCheck = IsWindows ? path.NormalizePath('/') : path;
+        var pathToCheck = normalizePath ? path.NormalizePath('/') : path;
 
         // Add trailing slash for directories to match "folder/"
         if (isDirectory)

Emby.Server.Implementations/Library/IgnorePatterns.cs

@@ -50,6 +50,10 @@ namespace Emby.Server.Implementations.Library
             "**/lost+found",
             "**/subs/**",
             "**/subs",
+            "**/.snapshots/**",
+            "**/.snapshots",
+            "**/.snapshot/**",
+            "**/.snapshot",
 
             // Trickplay files
             "**/*.trickplay",

Emby.Server.Implementations/Library/LibraryManager.cs

@@ -1058,6 +1058,7 @@ namespace Emby.Server.Implementations.Library
                 {
                     IncludeItemTypes = [BaseItemKind.MusicArtist],
                     Name = name,
+                    UseRawName = true,
                     DtoOptions = options
                 }).Cast<MusicArtist>()
                 .OrderBy(i => i.IsAccessedByName ? 1 : 0)
@@ -2201,6 +2202,12 @@ namespace Emby.Server.Implementations.Library
         public Task UpdateItemAsync(BaseItem item, BaseItem parent, ItemUpdateType updateReason, CancellationToken cancellationToken)
             => UpdateItemsAsync([item], parent, updateReason, cancellationToken);
 
+        /// <inheritdoc />
+        public async Task ReattachUserDataAsync(BaseItem item, CancellationToken cancellationToken)
+        {
+            await _itemRepository.ReattachUserDataAsync(item, cancellationToken).ConfigureAwait(false);
+        }
+
         public async Task RunMetadataSavers(BaseItem item, ItemUpdateType updateReason)
         {
             if (item.IsFileProtocol)
@@ -3194,19 +3201,7 @@ namespace Emby.Server.Implementations.Library
             var rootFolderPath = _configurationManager.ApplicationPaths.DefaultUserViewsPath;
             var virtualFolderPath = Path.Combine(rootFolderPath, virtualFolderName);
 
-            var shortcutFilename = Path.GetFileNameWithoutExtension(path);
-
-            var lnk = Path.Combine(virtualFolderPath, shortcutFilename + ShortcutFileExtension);
-
-            while (File.Exists(lnk))
-            {
-                shortcutFilename += "1";
-                lnk = Path.Combine(virtualFolderPath, shortcutFilename + ShortcutFileExtension);
-            }
-
-            _fileSystem.CreateShortcut(lnk, _appHost.ReverseVirtualPath(path));
-
-            RemoveContentTypeOverrides(path);
+            CreateShortcut(virtualFolderPath, pathInfo);
 
             if (saveLibraryOptions)
             {
@@ -3371,5 +3366,24 @@ namespace Emby.Server.Implementations.Library
 
             return item is UserRootFolder || item.IsVisibleStandalone(user);
         }
+
+        public void CreateShortcut(string virtualFolderPath, MediaPathInfo pathInfo)
+        {
+            var path = pathInfo.Path;
+            var rootFolderPath = _configurationManager.ApplicationPaths.DefaultUserViewsPath;
+
+            var shortcutFilename = Path.GetFileNameWithoutExtension(path);
+
+            var lnk = Path.Combine(virtualFolderPath, shortcutFilename + ShortcutFileExtension);
+
+            while (File.Exists(lnk))
+            {
+                shortcutFilename += "1";
+                lnk = Path.Combine(virtualFolderPath, shortcutFilename + ShortcutFileExtension);
+            }
+
+            _fileSystem.CreateShortcut(lnk, _appHost.ReverseVirtualPath(path));
+            RemoveContentTypeOverrides(path);
+        }
     }
 }

Emby.Server.Implementations/Localization/Core/es-MX.json

@@ -30,7 +30,7 @@
     "ItemAddedWithName": "{0} fue agregado a la biblioteca",
     "ItemRemovedWithName": "{0} fue removido de la biblioteca",
     "LabelIpAddressValue": "Dirección IP: {0}",
-    "LabelRunningTimeValue": "Tiempo corriendo: {0}",
+    "LabelRunningTimeValue": "Tiempo de reproducción: {0}",
     "Latest": "Recientes",
     "MessageApplicationUpdated": "El servidor Jellyfin ha sido actualizado",
     "MessageApplicationUpdatedTo": "El servidor Jellyfin ha sido actualizado a {0}",

Emby.Server.Implementations/Localization/Core/et.json

@@ -137,5 +137,5 @@
     "TaskExtractMediaSegmentsDescription": "Eraldab või võtab meediasegmendid MediaSegment'i lubavatest pluginatest.",
     "TaskMoveTrickplayImages": "Muuda trickplay piltide asukoht",
     "CleanupUserDataTask": "Puhasta kasutajaandmed",
-    "CleanupUserDataTaskDescription": "Puhastab kõik kasutajaandmed (vaatamise olek, lemmikute olek jne) meediast, mida pole enam vähemalt 90 päeva saadaval olnud."
+    "CleanupUserDataTaskDescription": "Puhastab kõik kasutajaandmed (vaatamise olek, lemmikute olek jne) meediast, mis pole enam vähemalt 90 päeva saadaval olnud."
 }

Emby.Server.Implementations/Localization/Core/gsw.json

@@ -11,7 +11,7 @@
     "Collections": "Sammlungen",
     "DeviceOfflineWithName": "{0} wurde getrennt",
     "DeviceOnlineWithName": "{0} ist verbunden",
-    "FailedLoginAttemptWithUserName": "Fählgschlagene Ameldeversuech vo {0}",
+    "FailedLoginAttemptWithUserName": "Fehlgeschlagener Anmeldeversuch von {0}",
     "Favorites": "Favorite",
     "Folders": "Ordner",
     "Genres": "Genre",

Emby.Server.Implementations/Localization/Core/hi.json

@@ -129,12 +129,5 @@
     "TaskAudioNormalization": "श्रव्य सामान्यीकरण",
     "TaskAudioNormalizationDescription": "श्रव्य सामान्यीकरण के लिए फाइलें अन्वेषण करें",
     "TaskDownloadMissingLyrics": "लापता गानों के बोल डाउनलोड करेँ",
-    "TaskDownloadMissingLyricsDescription": "गानों के बोल डाउनलोड करता है",
-    "TaskExtractMediaSegments": "मीडिया सेगमेंट स्कैन",
-    "TaskExtractMediaSegmentsDescription": "मीडियासेगमेंट सक्षम प्लगइन्स से मीडिया सेगमेंट निकालता है या प्राप्त करता है।",
-    "TaskMoveTrickplayImages": "ट्रिकप्ले छवि स्थान माइग्रेट करें",
-    "TaskMoveTrickplayImagesDescription": "लाइब्रेरी सेटिंग्स के अनुसार मौजूदा ट्रिकप्ले फ़ाइलों को स्थानांतरित करता है।",
-    "TaskCleanCollectionsAndPlaylistsDescription": "संग्रहों और प्लेलिस्टों से उन आइटमों को हटाता है जो अब मौजूद नहीं हैं।",
-    "TaskCleanCollectionsAndPlaylists": "संग्रह और प्लेलिस्ट साफ़ करें",
-    "CleanupUserDataTask": "यूज़र डेटा की सफाई करता है।"
+    "TaskDownloadMissingLyricsDescription": "गानों के बोल डाउनलोड करता है"
 }

Emby.Server.Implementations/Localization/Core/ko.json

@@ -136,7 +136,5 @@
     "TaskMoveTrickplayImages": "트릭플레이 이미지 위치 마이그레이션",
     "TaskMoveTrickplayImagesDescription": "추출된 트릭플레이 이미지를 라이브러리 설정에 따라 이동합니다.",
     "TaskDownloadMissingLyrics": "누락된 가사 다운로드",
-    "TaskDownloadMissingLyricsDescription": "가사 다운로드",
-    "CleanupUserDataTask": "사용자 데이터 정리 작업",
-    "CleanupUserDataTaskDescription": "최소 90일 이상 존재하지 않는 미디어에 대한 사용자 데이터(시청 상태, 즐겨찾기 등)를 정리합니다."
+    "TaskDownloadMissingLyricsDescription": "가사 다운로드"
 }

Emby.Server.Implementations/Localization/Core/mn.json

@@ -3,7 +3,7 @@
     "HeaderNextUp": "Дараа нь",
     "HeaderContinueWatching": "Үргэлжлүүлэн үзэх",
     "Songs": "Дуунууд",
-    "Playlists": "Тоглуулах жагсаалтууд",
+    "Playlists": "Playlist-ууд",
     "Movies": "Кинонууд",
     "Latest": "Сүүлийн үеийн",
     "Genres": "Төрлүүд",
@@ -71,7 +71,7 @@
     "Forced": "Хүчээр",
     "HeaderAlbumArtists": "Цомгийн уран бүтээлчид",
     "HeaderFavoriteAlbums": "Дуртай цомгууд",
-    "HeaderLiveTV": "Шууд ТВ",
+    "HeaderLiveTV": "Шууд",
     "HeaderRecordingGroups": "Бичлэгийн бүлгүүд",
     "HearingImpaired": "Сонсголын бэрхшээлтэй",
     "HomeVideos": "Үндсэн дүрсүүд",
@@ -109,7 +109,7 @@
     "ScheduledTaskStartedWithName": "{0}-г эхлүүлэв",
     "ServerNameNeedsToBeRestarted": "{0}-г дахин асаана уу",
     "Shows": "Шоу",
-    "Sync": "Синхрончлох",
+    "Sync": "Дахин",
     "System": "Систем",
     "TvShows": "ТВ нэвтрүүлгүүд",
     "Undefined": "Танисангүй",

Emby.Server.Implementations/Localization/Core/mr.json

@@ -132,10 +132,5 @@
     "TaskDownloadMissingLyrics": "उपलब्ध नसलेली गीतपट्टी (Lyrics) डाउनलोड करा",
     "TaskAudioNormalization": "ऑडिओ सामान्यीकरण",
     "TaskAudioNormalizationDescription": "ऑडिओ सामान्यीकरणाचा डाटा स्कॅन करतो.",
-    "TaskDownloadMissingLyricsDescription": "गाण्यांची गीतपट्टी (Lyrics) डाउनलोड करतो",
-    "TaskExtractMediaSegmentsDescription": "सक्रिय असलेल्या प्लगिनमधून मीडिया विभाग प्राप्त करते.",
-    "TaskMoveTrickplayImagesDescription": "लायब्ररीच्या सेटिंग्जप्रमाणे आधीपासून अस्तित्वात असलेल्या ट्रिकप्ले फाइल्सचे स्थान बदलते.",
-    "TaskCleanCollectionsAndPlaylistsDescription": "जे संग्रह आणि प्लेलिस्ट आता अस्तित्वात नाहीत, त्यांमधील घटक हटवते.",
-    "CleanupUserDataTask": "वापरकर्ता डेटाची स्वच्छता प्रक्रिया",
-    "CleanupUserDataTaskDescription": "९० दिवसांहून अधिक काळ अनुपस्थित असलेल्या माध्यमांवरील सर्व वापरकर्ता माहिती (जसे पाहण्याची स्थिती, आवडी इ.) हटवते."
+    "TaskDownloadMissingLyricsDescription": "गाण्यांची गीतपट्टी (Lyrics) डाउनलोड करतो"
 }

Emby.Server.Implementations/Localization/Core/oc.json

@@ -1 +0,0 @@
-{}

Emby.Server.Implementations/Localization/Core/pa.json

@@ -134,8 +134,6 @@
     "TaskCleanCollectionsAndPlaylistsDescription": "ਕਲੈਕਸ਼ਨਾਂ ਅਤੇ ਪਲੇਲਿਸਟਾਂ ਵਿੱਚੋਂ ਉਹ ਆਈਟਮ ਹਟਾਉਂਦਾ ਹੈ ਜੋ ਹੁਣ ਮੌਜੂਦ ਨਹੀਂ ਹਨ।",
     "TaskCleanCollectionsAndPlaylists": "ਕਲੈਕਸ਼ਨਾਂ ਅਤੇ ਪਲੇਲਿਸਟਾਂ ਨੂੰ ਸਾਫ ਕਰੋ",
     "TaskAudioNormalization": "ਆਵਾਜ਼ ਸਧਾਰਣੀਕਰਨ",
-    "TaskRefreshTrickplayImagesDescription": "ਵੀਡੀਓ ਲਈ ਟ੍ਰਿਕਪਲੇ ਪ੍ਰੀਵਿਊ ਬਣਾਉਂਦਾ ਹੈ (ਜੇ ਲਾਇਬ੍ਰੇਰੀ ਵਿੱਚ ਚੁਣਿਆ ਗਿਆ ਹੈ)।",
-    "TaskKeyframeExtractorDescription": "ਕੀ-ਫ੍ਰੇਮਜ਼ ਨੂੰ ਵੀਡੀਓ ਫਾਈਲਾਂ ਵਿੱਚੋਂ ਨਿਕਾਲਦਾ ਹੈ ਤਾਂ ਜੋ ਹੋਰ ਜ਼ਿਆਦਾ ਸਟਿਕ ਹੋਣ ਵਾਲੀਆਂ HLS ਪਲੇਲਿਸਟਾਂ ਬਣਾਈਆਂ ਜਾ ਸਕਣ। ਇਹ ਕੰਮ ਲੰਬੇ ਸਮੇਂ ਤੱਕ ਚੱਲ ਸਕਦਾ ਹੈ।",
-    "CleanupUserDataTaskDescription": "ਘੱਟੋ-ਘੱਟ 90 ਦਿਨਾਂ ਤੋਂ ਮੌਜੂਦ ਨਾ ਹੋਣ ਵਾਲੇ ਮੀਡੀਆ ਤੋਂ ਸਾਰੇ ਉਪਭੋਗਤਾ ਡੇਟਾ (ਵਾਚ ਸਟੇਟ, ਮਨਪਸੰਦ ਸਟੇਟਸ ਆਦਿ) ਨੂੰ ਸਾਫ਼ ਕਰਦਾ ਹੈ।",
-    "CleanupUserDataTask": "ਯੂਜ਼ਰ ਡਾਟਾ ਸਾਫ਼ ਕਰਨ ਦਾ ਕੰਮ"
+    "TaskRefreshTrickplayImagesDescription": "ਚਲ ਰਹੀ ਲਾਇਬ੍ਰੇਰੀਆਂ ਵਿੱਚ ਵੀਡੀਓਜ਼ ਲਈ ਟ੍ਰਿਕਪਲੇ ਪ੍ਰੀਵਿਊ ਬਣਾਉਂਦਾ ਹੈ।",
+    "TaskKeyframeExtractorDescription": "ਕੀ-ਫ੍ਰੇਮਜ਼ ਨੂੰ ਵੀਡੀਓ ਫਾਈਲਾਂ ਵਿੱਚੋਂ ਨਿਕਾਲਦਾ ਹੈ ਤਾਂ ਜੋ ਹੋਰ ਜ਼ਿਆਦਾ ਸਟਿਕ ਹੋਣ ਵਾਲੀਆਂ HLS ਪਲੇਲਿਸਟਾਂ ਬਣਾਈਆਂ ਜਾ ਸਕਣ। ਇਹ ਕੰਮ ਲੰਬੇ ਸਮੇਂ ਤੱਕ ਚੱਲ ਸਕਦਾ ਹੈ।"
 }

Emby.Server.Implementations/Localization/Core/pr.json

@@ -16,7 +16,7 @@
     "Collections": "Barrels",
     "ItemAddedWithName": "{0} is now with yer treasure",
     "Default": "Normal-like",
-    "FailedLoginAttemptWithUserName": "Ye failed to enter from {0}",
+    "FailedLoginAttemptWithUserName": "Ye failed to get in, try from {0}",
     "Favorites": "Finest Loot",
     "ItemRemovedWithName": "{0} was taken from yer treasure",
     "LabelIpAddressValue": "Ship's coordinates: {0}",
@@ -113,10 +113,5 @@
     "TaskCleanCache": "Sweep the Cache Chest",
     "TaskRefreshChapterImages": "Claim chapter portraits",
     "TaskRefreshChapterImagesDescription": "Paints wee portraits fer videos that own chapters.",
-    "TaskRefreshLibrary": "Scan the Treasure Trove",
-    "TasksChannelsCategory": "Channels o' thy Internet",
-    "TaskRefreshTrickplayImages": "Summon the picture tricks",
-    "TaskRefreshTrickplayImagesDescription": "Summons picture trick previews for videos in ye enabled book roost",
-    "TaskUpdatePlugins": "Resummon yer Plugins",
-    "TaskCleanTranscode": "Swab Ye Transcode Directory"
+    "TaskRefreshLibrary": "Scan the Treasure Trove"
 }

Emby.Server.Implementations/Localization/Core/pt-PT.json

@@ -5,7 +5,7 @@
     "Artists": "Artistas",
     "AuthenticationSucceededWithUserName": "{0} autenticado com sucesso",
     "Books": "Livros",
-    "CameraImageUploadedFrom": "Uma nova imagem da câmara foi enviada a partir de {0}",
+    "CameraImageUploadedFrom": "Uma nova imagem de câmara foi enviada a partir de {0}",
     "Channels": "Canais",
     "ChapterNameValue": "Capítulo {0}",
     "Collections": "Coleções",

Emby.Server.Implementations/Localization/Core/vi.json

@@ -39,7 +39,7 @@
     "TasksMaintenanceCategory": "Bảo Trì",
     "VersionNumber": "Phiên Bản {0}",
     "ValueHasBeenAddedToLibrary": "{0} đã được thêm vào thư viện của bạn",
-    "UserStoppedPlayingItemWithValues": "{0} đã kết thúc phát {1} trên {2}",
+    "UserStoppedPlayingItemWithValues": "{0} đã phát xong {1} trên {2}",
     "UserStartedPlayingItemWithValues": "{0} đang phát {1} trên {2}",
     "UserPolicyUpdatedWithName": "Chính sách người dùng đã được cập nhật cho {0}",
     "UserPasswordChangedWithName": "Mật khẩu đã được thay đổi cho người dùng {0}",

Emby.Server.Implementations/Localization/Core/zh-HK.json

@@ -23,7 +23,7 @@
     "HeaderFavoriteShows": "最愛的節目",
     "HeaderFavoriteSongs": "最愛的歌曲",
     "HeaderLiveTV": "電視直播",
-    "HeaderNextUp": "繼續觀看",
+    "HeaderNextUp": "接著播放",
     "HeaderRecordingGroups": "錄製組",
     "HomeVideos": "家庭影片",
     "Inherit": "繼承",
@@ -127,8 +127,8 @@
     "HearingImpaired": "聽力障礙",
     "TaskRefreshTrickplayImages": "建立 Trickplay 圖像",
     "TaskRefreshTrickplayImagesDescription": "為已啟用 Trickplay 的媒體庫內的影片建立 Trickplay 預覽圖。",
-    "TaskExtractMediaSegments": "掃描媒體分段資訊",
-    "TaskExtractMediaSegmentsDescription": "從允許MediaSegment 功能的插件中獲取媒體片段。",
+    "TaskExtractMediaSegments": "掃描媒體段落",
+    "TaskExtractMediaSegmentsDescription": "從MediaSegment中被允許的插件獲取媒體段落。",
     "TaskDownloadMissingLyrics": "下載欠缺歌詞",
     "TaskDownloadMissingLyricsDescription": "下載歌詞",
     "TaskCleanCollectionsAndPlaylists": "整理媒體與播放清單",
@@ -137,6 +137,5 @@
     "TaskCleanCollectionsAndPlaylistsDescription": "從資料庫及播放清單中移除已不存在的項目。",
     "TaskMoveTrickplayImagesDescription": "根據媒體庫設定移動現有的 Trickplay 檔案。",
     "TaskMoveTrickplayImages": "轉移 Trickplay 影像位置",
-    "CleanupUserDataTask": "用戶資料清理工作",
-    "CleanupUserDataTaskDescription": "從用戶數據中清除已經被刪除超過 90 日的媒體相關資料。"
+    "CleanupUserDataTask": "用戶資料清理工作"
 }

Emby.Server.Implementations/Localization/LocalizationManager.cs

@@ -38,6 +38,7 @@ namespace Emby.Server.Implementations.Localization
 
         private readonly JsonSerializerOptions _jsonOptions = JsonDefaults.Options;
 
+        private readonly ConcurrentDictionary<string, CultureDto?> _cultureCache = new(StringComparer.OrdinalIgnoreCase);
         private List<CultureDto> _cultures = [];
 
         private FrozenDictionary<string, string> _iso6392BtoT = null!;
@@ -161,6 +162,7 @@ namespace Emby.Server.Implementations.Localization
                     list.Add(new CultureDto(name, displayname, twoCharName, threeLetterNames));
                 }
 
+                _cultureCache.Clear();
                 _cultures = list;
                 _iso6392BtoT = iso6392BtoTdict.ToFrozenDictionary(StringComparer.OrdinalIgnoreCase);
             }
@@ -169,20 +171,31 @@ namespace Emby.Server.Implementations.Localization
         /// <inheritdoc />
         public CultureDto? FindLanguageInfo(string language)
         {
-            // TODO language should ideally be a ReadOnlySpan but moq cannot mock ref structs
-            for (var i = 0; i < _cultures.Count; i++)
+            if (string.IsNullOrEmpty(language))
             {
-                var culture = _cultures[i];
-                if (language.Equals(culture.DisplayName, StringComparison.OrdinalIgnoreCase)
-                    || language.Equals(culture.Name, StringComparison.OrdinalIgnoreCase)
-                    || culture.ThreeLetterISOLanguageNames.Contains(language, StringComparison.OrdinalIgnoreCase)
-                    || language.Equals(culture.TwoLetterISOLanguageName, StringComparison.OrdinalIgnoreCase))
-                {
-                    return culture;
-                }
+                return null;
             }
 
-            return default;
+            return _cultureCache.GetOrAdd(
+                language,
+                static (lang, cultures) =>
+                {
+                    // TODO language should ideally be a ReadOnlySpan but moq cannot mock ref structs
+                    for (var i = 0; i < cultures.Count; i++)
+                    {
+                        var culture = cultures[i];
+                        if (lang.Equals(culture.DisplayName, StringComparison.OrdinalIgnoreCase)
+                            || lang.Equals(culture.Name, StringComparison.OrdinalIgnoreCase)
+                            || culture.ThreeLetterISOLanguageNames.Contains(lang, StringComparison.OrdinalIgnoreCase)
+                            || lang.Equals(culture.TwoLetterISOLanguageName, StringComparison.OrdinalIgnoreCase))
+                        {
+                            return culture;
+                        }
+                    }
+
+                    return null;
+                },
+                _cultures);
         }
 
         /// <inheritdoc />
@@ -311,15 +324,19 @@ namespace Emby.Server.Implementations.Localization
             else
             {
                 // Fall back to server default language for ratings check
-                // If it has no ratings, use the US ratings
-                var ratingsDictionary = GetParentalRatingsDictionary() ?? GetParentalRatingsDictionary("us");
+                var ratingsDictionary = GetParentalRatingsDictionary();
                 if (ratingsDictionary is not null && ratingsDictionary.TryGetValue(rating, out ParentalRatingScore? value))
                 {
                     return value;
                 }
             }
 
-            // If we don't find anything, check all ratings systems
+            // If we don't find anything, check all ratings systems, starting with US
+            if (_allParentalRatings.TryGetValue("us", out var usRatings) && usRatings.TryGetValue(rating, out var usValue))
+            {
+                return usValue;
+            }
+
             foreach (var dictionary in _allParentalRatings.Values)
             {
                 if (dictionary.TryGetValue(rating, out var value))

Emby.Server.Implementations/Localization/iso6392.txt

@@ -347,8 +347,8 @@ pli||pi|Pali|pali
 pol||pl|Polish|polonais
 pon|||Pohnpeian|pohnpei
 por||pt|Portuguese|portugais
-por||pt-pt|Portuguese (Portugal)|portugais (pt-pt)
-por||pt-br|Portuguese (Brazil)|portugais (pt-br)
+pop||pt-pt|Portuguese (Portugal)|portugais (pt-pt)
+pob||pt-br|Portuguese (Brazil)|portugais (pt-br)
 pra|||Prakrit languages|prâkrit, langues
 pro|||Provençal, Old (to 1500)|provençal ancien (jusqu'à 1500)
 pus||ps|Pushto; Pashto|pachto

Emby.Server.Implementations/Session/SessionManager.cs

@@ -1175,7 +1175,8 @@ namespace Emby.Server.Implementations.Session
             return session;
         }
 
-        private SessionInfoDto ToSessionInfoDto(SessionInfo sessionInfo)
+        /// <inheritdoc />
+        public SessionInfoDto ToSessionInfoDto(SessionInfo sessionInfo)
         {
             return new SessionInfoDto
             {

Emby.Server.Implementations/Updates/InstallationManager.cs

@@ -156,6 +156,11 @@ namespace Emby.Server.Implementations.Updates
                 _logger.LogError(ex, "The URL configured for the plugin repository manifest URL is not valid: {Manifest}", manifest);
                 return Array.Empty<PackageInfo>();
             }
+            catch (NotSupportedException ex)
+            {
+                _logger.LogError(ex, "The URL scheme configured for the plugin repository is not supported: {Manifest}", manifest);
+                return Array.Empty<PackageInfo>();
+            }
             catch (HttpRequestException ex)
             {
                 _logger.LogError(ex, "An error occurred while accessing the plugin manifest: {Manifest}", manifest);

Jellyfin.Api/Controllers/ArtistsController.cs

@@ -122,6 +122,7 @@ public class ArtistsController : BaseJellyfinApiController
     {
         userId = RequestHelpers.GetUserId(User, userId);
         var dtoOptions = new DtoOptions { Fields = fields }
+            .AddClientFields(User)
             .AddAdditionalDtoOptions(enableImages, enableUserData, imageTypeLimit, enableImageTypes);
 
         User? user = null;
@@ -325,6 +326,7 @@ public class ArtistsController : BaseJellyfinApiController
     {
         userId = RequestHelpers.GetUserId(User, userId);
         var dtoOptions = new DtoOptions { Fields = fields }
+            .AddClientFields(User)
             .AddAdditionalDtoOptions(enableImages, enableUserData, imageTypeLimit, enableImageTypes);
 
         User? user = null;
@@ -465,7 +467,7 @@ public class ArtistsController : BaseJellyfinApiController
     public ActionResult<BaseItemDto> GetArtistByName([FromRoute, Required] string name, [FromQuery] Guid? userId)
     {
         userId = RequestHelpers.GetUserId(User, userId);
-        var dtoOptions = new DtoOptions();
+        var dtoOptions = new DtoOptions().AddClientFields(User);
 
         var item = _libraryManager.GetArtist(name, dtoOptions);
 

Jellyfin.Api/Controllers/AudioController.cs

@@ -92,18 +92,18 @@ public class AudioController : BaseJellyfinApiController
     [ProducesAudioFile]
     public async Task<ActionResult> GetAudioStream(
         [FromRoute, Required] Guid itemId,
-        [FromQuery] [RegularExpression(EncodingHelper.ContainerValidationRegex)] string? container,
+        [FromQuery] [RegularExpression(EncodingHelper.ContainerValidationRegexStr)] string? container,
         [FromQuery] bool? @static,
         [FromQuery] string? @params,
         [FromQuery] string? tag,
         [FromQuery, ParameterObsolete] string? deviceProfileId,
         [FromQuery] string? playSessionId,
-        [FromQuery] [RegularExpression(EncodingHelper.ContainerValidationRegex)] string? segmentContainer,
+        [FromQuery] [RegularExpression(EncodingHelper.ContainerValidationRegexStr)] string? segmentContainer,
         [FromQuery] int? segmentLength,
         [FromQuery] int? minSegments,
         [FromQuery] string? mediaSourceId,
         [FromQuery] string? deviceId,
-        [FromQuery] [RegularExpression(EncodingHelper.ContainerValidationRegex)] string? audioCodec,
+        [FromQuery] [RegularExpression(EncodingHelper.ContainerValidationRegexStr)] string? audioCodec,
         [FromQuery] bool? enableAutoStreamCopy,
         [FromQuery] bool? allowVideoStreamCopy,
         [FromQuery] bool? allowAudioStreamCopy,
@@ -114,7 +114,7 @@ public class AudioController : BaseJellyfinApiController
         [FromQuery] int? audioChannels,
         [FromQuery] int? maxAudioChannels,
         [FromQuery] string? profile,
-        [FromQuery] [RegularExpression(EncodingHelper.LevelValidationRegex)] string? level,
+        [FromQuery] [RegularExpression(EncodingHelper.LevelValidationRegexStr)] string? level,
         [FromQuery] float? framerate,
         [FromQuery] float? maxFramerate,
         [FromQuery] bool? copyTimestamps,
@@ -133,8 +133,8 @@ public class AudioController : BaseJellyfinApiController
         [FromQuery] int? cpuCoreLimit,
         [FromQuery] string? liveStreamId,
         [FromQuery] bool? enableMpegtsM2TsMode,
-        [FromQuery] [RegularExpression(EncodingHelper.ContainerValidationRegex)] string? videoCodec,
-        [FromQuery] [RegularExpression(EncodingHelper.ContainerValidationRegex)] string? subtitleCodec,
+        [FromQuery] [RegularExpression(EncodingHelper.ContainerValidationRegexStr)] string? videoCodec,
+        [FromQuery] [RegularExpression(EncodingHelper.ContainerValidationRegexStr)] string? subtitleCodec,
         [FromQuery] string? transcodeReasons,
         [FromQuery] int? audioStreamIndex,
         [FromQuery] int? videoStreamIndex,
@@ -259,18 +259,18 @@ public class AudioController : BaseJellyfinApiController
     [ProducesAudioFile]
     public async Task<ActionResult> GetAudioStreamByContainer(
         [FromRoute, Required] Guid itemId,
-        [FromRoute, Required] [RegularExpression(EncodingHelper.ContainerValidationRegex)] string container,
+        [FromRoute, Required] [RegularExpression(EncodingHelper.ContainerValidationRegexStr)] string container,
         [FromQuery] bool? @static,
         [FromQuery] string? @params,
         [FromQuery] string? tag,
         [FromQuery, ParameterObsolete] string? deviceProfileId,
         [FromQuery] string? playSessionId,
-        [FromQuery] [RegularExpression(EncodingHelper.ContainerValidationRegex)] string? segmentContainer,
+        [FromQuery] [RegularExpression(EncodingHelper.ContainerValidationRegexStr)] string? segmentContainer,
         [FromQuery] int? segmentLength,
         [FromQuery] int? minSegments,
         [FromQuery] string? mediaSourceId,
         [FromQuery] string? deviceId,
-        [FromQuery] [RegularExpression(EncodingHelper.ContainerValidationRegex)] string? audioCodec,
+        [FromQuery] [RegularExpression(EncodingHelper.ContainerValidationRegexStr)] string? audioCodec,
         [FromQuery] bool? enableAutoStreamCopy,
         [FromQuery] bool? allowVideoStreamCopy,
         [FromQuery] bool? allowAudioStreamCopy,
@@ -281,7 +281,7 @@ public class AudioController : BaseJellyfinApiController
         [FromQuery] int? audioChannels,
         [FromQuery] int? maxAudioChannels,
         [FromQuery] string? profile,
-        [FromQuery] [RegularExpression(EncodingHelper.LevelValidationRegex)] string? level,
+        [FromQuery] [RegularExpression(EncodingHelper.LevelValidationRegexStr)] string? level,
         [FromQuery] float? framerate,
         [FromQuery] float? maxFramerate,
         [FromQuery] bool? copyTimestamps,
@@ -300,8 +300,8 @@ public class AudioController : BaseJellyfinApiController
         [FromQuery] int? cpuCoreLimit,
         [FromQuery] string? liveStreamId,
         [FromQuery] bool? enableMpegtsM2TsMode,
-        [FromQuery] [RegularExpression(EncodingHelper.ContainerValidationRegex)] string? videoCodec,
-        [FromQuery] [RegularExpression(EncodingHelper.ContainerValidationRegex)] string? subtitleCodec,
+        [FromQuery] [RegularExpression(EncodingHelper.ContainerValidationRegexStr)] string? videoCodec,
+        [FromQuery] [RegularExpression(EncodingHelper.ContainerValidationRegexStr)] string? subtitleCodec,
         [FromQuery] string? transcodeReasons,
         [FromQuery] int? audioStreamIndex,
         [FromQuery] int? videoStreamIndex,

Jellyfin.Api/Controllers/CollectionController.cs

@@ -65,7 +65,7 @@ public class CollectionController : BaseJellyfinApiController
             UserIds = new[] { userId }
         }).ConfigureAwait(false);
 
-        var dtoOptions = new DtoOptions();
+        var dtoOptions = new DtoOptions().AddClientFields(User);
 
         var dto = _dtoService.GetBaseItemDto(item, dtoOptions);
 

Jellyfin.Api/Controllers/DynamicHlsController.cs

@@ -167,18 +167,18 @@ public class DynamicHlsController : BaseJellyfinApiController
     [ProducesPlaylistFile]
     public async Task<ActionResult> GetLiveHlsStream(
         [FromRoute, Required] Guid itemId,
-        [FromQuery] [RegularExpression(EncodingHelper.ContainerValidationRegex)] string? container,
+        [FromQuery] [RegularExpression(EncodingHelper.ContainerValidationRegexStr)] string? container,
         [FromQuery] bool? @static,
         [FromQuery] string? @params,
         [FromQuery] string? tag,
         [FromQuery, ParameterObsolete] string? deviceProfileId,
         [FromQuery] string? playSessionId,
-        [FromQuery] [RegularExpression(EncodingHelper.ContainerValidationRegex)] string? segmentContainer,
+        [FromQuery] [RegularExpression(EncodingHelper.ContainerValidationRegexStr)] string? segmentContainer,
         [FromQuery] int? segmentLength,
         [FromQuery] int? minSegments,
         [FromQuery] string? mediaSourceId,
         [FromQuery] string? deviceId,
-        [FromQuery] [RegularExpression(EncodingHelper.ContainerValidationRegex)] string? audioCodec,
+        [FromQuery] [RegularExpression(EncodingHelper.ContainerValidationRegexStr)] string? audioCodec,
         [FromQuery] bool? enableAutoStreamCopy,
         [FromQuery] bool? allowVideoStreamCopy,
         [FromQuery] bool? allowAudioStreamCopy,
@@ -189,7 +189,7 @@ public class DynamicHlsController : BaseJellyfinApiController
         [FromQuery] int? audioChannels,
         [FromQuery] int? maxAudioChannels,
         [FromQuery] string? profile,
-        [FromQuery] [RegularExpression(EncodingHelper.LevelValidationRegex)] string? level,
+        [FromQuery] [RegularExpression(EncodingHelper.LevelValidationRegexStr)] string? level,
         [FromQuery] float? framerate,
         [FromQuery] float? maxFramerate,
         [FromQuery] bool? copyTimestamps,
@@ -208,8 +208,8 @@ public class DynamicHlsController : BaseJellyfinApiController
         [FromQuery] int? cpuCoreLimit,
         [FromQuery] string? liveStreamId,
         [FromQuery] bool? enableMpegtsM2TsMode,
-        [FromQuery] [RegularExpression(EncodingHelper.ContainerValidationRegex)] string? videoCodec,
-        [FromQuery] [RegularExpression(EncodingHelper.ContainerValidationRegex)] string? subtitleCodec,
+        [FromQuery] [RegularExpression(EncodingHelper.ContainerValidationRegexStr)] string? videoCodec,
+        [FromQuery] [RegularExpression(EncodingHelper.ContainerValidationRegexStr)] string? subtitleCodec,
         [FromQuery] string? transcodeReasons,
         [FromQuery] int? audioStreamIndex,
         [FromQuery] int? videoStreamIndex,
@@ -416,12 +416,12 @@ public class DynamicHlsController : BaseJellyfinApiController
         [FromQuery] string? tag,
         [FromQuery, ParameterObsolete] string? deviceProfileId,
         [FromQuery] string? playSessionId,
-        [FromQuery] [RegularExpression(EncodingHelper.ContainerValidationRegex)] string? segmentContainer,
+        [FromQuery] [RegularExpression(EncodingHelper.ContainerValidationRegexStr)] string? segmentContainer,
         [FromQuery] int? segmentLength,
         [FromQuery] int? minSegments,
         [FromQuery, Required] string mediaSourceId,
         [FromQuery] string? deviceId,
-        [FromQuery] [RegularExpression(EncodingHelper.ContainerValidationRegex)] string? audioCodec,
+        [FromQuery] [RegularExpression(EncodingHelper.ContainerValidationRegexStr)] string? audioCodec,
         [FromQuery] bool? enableAutoStreamCopy,
         [FromQuery] bool? allowVideoStreamCopy,
         [FromQuery] bool? allowAudioStreamCopy,
@@ -432,7 +432,7 @@ public class DynamicHlsController : BaseJellyfinApiController
         [FromQuery] int? audioChannels,
         [FromQuery] int? maxAudioChannels,
         [FromQuery] string? profile,
-        [FromQuery] [RegularExpression(EncodingHelper.LevelValidationRegex)] string? level,
+        [FromQuery] [RegularExpression(EncodingHelper.LevelValidationRegexStr)] string? level,
         [FromQuery] float? framerate,
         [FromQuery] float? maxFramerate,
         [FromQuery] bool? copyTimestamps,
@@ -453,8 +453,8 @@ public class DynamicHlsController : BaseJellyfinApiController
         [FromQuery] int? cpuCoreLimit,
         [FromQuery] string? liveStreamId,
         [FromQuery] bool? enableMpegtsM2TsMode,
-        [FromQuery] [RegularExpression(EncodingHelper.ContainerValidationRegex)] string? videoCodec,
-        [FromQuery] [RegularExpression(EncodingHelper.ContainerValidationRegex)] string? subtitleCodec,
+        [FromQuery] [RegularExpression(EncodingHelper.ContainerValidationRegexStr)] string? videoCodec,
+        [FromQuery] [RegularExpression(EncodingHelper.ContainerValidationRegexStr)] string? subtitleCodec,
         [FromQuery] string? transcodeReasons,
         [FromQuery] int? audioStreamIndex,
         [FromQuery] int? videoStreamIndex,
@@ -592,12 +592,12 @@ public class DynamicHlsController : BaseJellyfinApiController
         [FromQuery] string? tag,
         [FromQuery, ParameterObsolete] string? deviceProfileId,
         [FromQuery] string? playSessionId,
-        [FromQuery] [RegularExpression(EncodingHelper.ContainerValidationRegex)] string? segmentContainer,
+        [FromQuery] [RegularExpression(EncodingHelper.ContainerValidationRegexStr)] string? segmentContainer,
         [FromQuery] int? segmentLength,
         [FromQuery] int? minSegments,
         [FromQuery, Required] string mediaSourceId,
         [FromQuery] string? deviceId,
-        [FromQuery] [RegularExpression(EncodingHelper.ContainerValidationRegex)] string? audioCodec,
+        [FromQuery] [RegularExpression(EncodingHelper.ContainerValidationRegexStr)] string? audioCodec,
         [FromQuery] bool? enableAutoStreamCopy,
         [FromQuery] bool? allowVideoStreamCopy,
         [FromQuery] bool? allowAudioStreamCopy,
@@ -609,7 +609,7 @@ public class DynamicHlsController : BaseJellyfinApiController
         [FromQuery] int? audioChannels,
         [FromQuery] int? maxAudioChannels,
         [FromQuery] string? profile,
-        [FromQuery] [RegularExpression(EncodingHelper.LevelValidationRegex)] string? level,
+        [FromQuery] [RegularExpression(EncodingHelper.LevelValidationRegexStr)] string? level,
         [FromQuery] float? framerate,
         [FromQuery] float? maxFramerate,
         [FromQuery] bool? copyTimestamps,
@@ -628,8 +628,8 @@ public class DynamicHlsController : BaseJellyfinApiController
         [FromQuery] int? cpuCoreLimit,
         [FromQuery] string? liveStreamId,
         [FromQuery] bool? enableMpegtsM2TsMode,
-        [FromQuery] [RegularExpression(EncodingHelper.ContainerValidationRegex)] string? videoCodec,
-        [FromQuery] [RegularExpression(EncodingHelper.ContainerValidationRegex)] string? subtitleCodec,
+        [FromQuery] [RegularExpression(EncodingHelper.ContainerValidationRegexStr)] string? videoCodec,
+        [FromQuery] [RegularExpression(EncodingHelper.ContainerValidationRegexStr)] string? subtitleCodec,
         [FromQuery] string? transcodeReasons,
         [FromQuery] int? audioStreamIndex,
         [FromQuery] int? videoStreamIndex,
@@ -762,12 +762,12 @@ public class DynamicHlsController : BaseJellyfinApiController
         [FromQuery] string? tag,
         [FromQuery, ParameterObsolete] string? deviceProfileId,
         [FromQuery] string? playSessionId,
-        [FromQuery] [RegularExpression(EncodingHelper.ContainerValidationRegex)] string? segmentContainer,
+        [FromQuery] [RegularExpression(EncodingHelper.ContainerValidationRegexStr)] string? segmentContainer,
         [FromQuery] int? segmentLength,
         [FromQuery] int? minSegments,
         [FromQuery] string? mediaSourceId,
         [FromQuery] string? deviceId,
-        [FromQuery] [RegularExpression(EncodingHelper.ContainerValidationRegex)] string? audioCodec,
+        [FromQuery] [RegularExpression(EncodingHelper.ContainerValidationRegexStr)] string? audioCodec,
         [FromQuery] bool? enableAutoStreamCopy,
         [FromQuery] bool? allowVideoStreamCopy,
         [FromQuery] bool? allowAudioStreamCopy,
@@ -778,7 +778,7 @@ public class DynamicHlsController : BaseJellyfinApiController
         [FromQuery] int? audioChannels,
         [FromQuery] int? maxAudioChannels,
         [FromQuery] string? profile,
-        [FromQuery] [RegularExpression(EncodingHelper.LevelValidationRegex)] string? level,
+        [FromQuery] [RegularExpression(EncodingHelper.LevelValidationRegexStr)] string? level,
         [FromQuery] float? framerate,
         [FromQuery] float? maxFramerate,
         [FromQuery] bool? copyTimestamps,
@@ -799,8 +799,8 @@ public class DynamicHlsController : BaseJellyfinApiController
         [FromQuery] int? cpuCoreLimit,
         [FromQuery] string? liveStreamId,
         [FromQuery] bool? enableMpegtsM2TsMode,
-        [FromQuery] [RegularExpression(EncodingHelper.ContainerValidationRegex)] string? videoCodec,
-        [FromQuery] [RegularExpression(EncodingHelper.ContainerValidationRegex)] string? subtitleCodec,
+        [FromQuery] [RegularExpression(EncodingHelper.ContainerValidationRegexStr)] string? videoCodec,
+        [FromQuery] [RegularExpression(EncodingHelper.ContainerValidationRegexStr)] string? subtitleCodec,
         [FromQuery] string? transcodeReasons,
         [FromQuery] int? audioStreamIndex,
         [FromQuery] int? videoStreamIndex,
@@ -934,12 +934,12 @@ public class DynamicHlsController : BaseJellyfinApiController
         [FromQuery] string? tag,
         [FromQuery, ParameterObsolete] string? deviceProfileId,
         [FromQuery] string? playSessionId,
-        [FromQuery] [RegularExpression(EncodingHelper.ContainerValidationRegex)] string? segmentContainer,
+        [FromQuery] [RegularExpression(EncodingHelper.ContainerValidationRegexStr)] string? segmentContainer,
         [FromQuery] int? segmentLength,
         [FromQuery] int? minSegments,
         [FromQuery] string? mediaSourceId,
         [FromQuery] string? deviceId,
-        [FromQuery] [RegularExpression(EncodingHelper.ContainerValidationRegex)] string? audioCodec,
+        [FromQuery] [RegularExpression(EncodingHelper.ContainerValidationRegexStr)] string? audioCodec,
         [FromQuery] bool? enableAutoStreamCopy,
         [FromQuery] bool? allowVideoStreamCopy,
         [FromQuery] bool? allowAudioStreamCopy,
@@ -951,7 +951,7 @@ public class DynamicHlsController : BaseJellyfinApiController
         [FromQuery] int? audioChannels,
         [FromQuery] int? maxAudioChannels,
         [FromQuery] string? profile,
-        [FromQuery] [RegularExpression(EncodingHelper.LevelValidationRegex)] string? level,
+        [FromQuery] [RegularExpression(EncodingHelper.LevelValidationRegexStr)] string? level,
         [FromQuery] float? framerate,
         [FromQuery] float? maxFramerate,
         [FromQuery] bool? copyTimestamps,
@@ -970,8 +970,8 @@ public class DynamicHlsController : BaseJellyfinApiController
         [FromQuery] int? cpuCoreLimit,
         [FromQuery] string? liveStreamId,
         [FromQuery] bool? enableMpegtsM2TsMode,
-        [FromQuery] [RegularExpression(EncodingHelper.ContainerValidationRegex)] string? videoCodec,
-        [FromQuery] [RegularExpression(EncodingHelper.ContainerValidationRegex)] string? subtitleCodec,
+        [FromQuery] [RegularExpression(EncodingHelper.ContainerValidationRegexStr)] string? videoCodec,
+        [FromQuery] [RegularExpression(EncodingHelper.ContainerValidationRegexStr)] string? subtitleCodec,
         [FromQuery] string? transcodeReasons,
         [FromQuery] int? audioStreamIndex,
         [FromQuery] int? videoStreamIndex,
@@ -1107,7 +1107,7 @@ public class DynamicHlsController : BaseJellyfinApiController
         [FromRoute, Required] Guid itemId,
         [FromRoute, Required] string playlistId,
         [FromRoute, Required] int segmentId,
-        [FromRoute, Required] [RegularExpression(EncodingHelper.ContainerValidationRegex)] string container,
+        [FromRoute, Required] [RegularExpression(EncodingHelper.ContainerValidationRegexStr)] string container,
         [FromQuery, Required] long runtimeTicks,
         [FromQuery, Required] long actualSegmentLengthTicks,
         [FromQuery] bool? @static,
@@ -1115,12 +1115,12 @@ public class DynamicHlsController : BaseJellyfinApiController
         [FromQuery] string? tag,
         [FromQuery, ParameterObsolete] string? deviceProfileId,
         [FromQuery] string? playSessionId,
-        [FromQuery] [RegularExpression(EncodingHelper.ContainerValidationRegex)] string? segmentContainer,
+        [FromQuery] [RegularExpression(EncodingHelper.ContainerValidationRegexStr)] string? segmentContainer,
         [FromQuery] int? segmentLength,
         [FromQuery] int? minSegments,
         [FromQuery] string? mediaSourceId,
         [FromQuery] string? deviceId,
-        [FromQuery] [RegularExpression(EncodingHelper.ContainerValidationRegex)] string? audioCodec,
+        [FromQuery] [RegularExpression(EncodingHelper.ContainerValidationRegexStr)] string? audioCodec,
         [FromQuery] bool? enableAutoStreamCopy,
         [FromQuery] bool? allowVideoStreamCopy,
         [FromQuery] bool? allowAudioStreamCopy,
@@ -1131,7 +1131,7 @@ public class DynamicHlsController : BaseJellyfinApiController
         [FromQuery] int? audioChannels,
         [FromQuery] int? maxAudioChannels,
         [FromQuery] string? profile,
-        [FromQuery] [RegularExpression(EncodingHelper.LevelValidationRegex)] string? level,
+        [FromQuery] [RegularExpression(EncodingHelper.LevelValidationRegexStr)] string? level,
         [FromQuery] float? framerate,
         [FromQuery] float? maxFramerate,
         [FromQuery] bool? copyTimestamps,
@@ -1152,8 +1152,8 @@ public class DynamicHlsController : BaseJellyfinApiController
         [FromQuery] int? cpuCoreLimit,
         [FromQuery] string? liveStreamId,
         [FromQuery] bool? enableMpegtsM2TsMode,
-        [FromQuery] [RegularExpression(EncodingHelper.ContainerValidationRegex)] string? videoCodec,
-        [FromQuery] [RegularExpression(EncodingHelper.ContainerValidationRegex)] string? subtitleCodec,
+        [FromQuery] [RegularExpression(EncodingHelper.ContainerValidationRegexStr)] string? videoCodec,
+        [FromQuery] [RegularExpression(EncodingHelper.ContainerValidationRegexStr)] string? subtitleCodec,
         [FromQuery] string? transcodeReasons,
         [FromQuery] int? audioStreamIndex,
         [FromQuery] int? videoStreamIndex,
@@ -1292,7 +1292,7 @@ public class DynamicHlsController : BaseJellyfinApiController
         [FromRoute, Required] Guid itemId,
         [FromRoute, Required] string playlistId,
         [FromRoute, Required] int segmentId,
-        [FromRoute, Required] [RegularExpression(EncodingHelper.ContainerValidationRegex)] string container,
+        [FromRoute, Required] [RegularExpression(EncodingHelper.ContainerValidationRegexStr)] string container,
         [FromQuery, Required] long runtimeTicks,
         [FromQuery, Required] long actualSegmentLengthTicks,
         [FromQuery] bool? @static,
@@ -1300,12 +1300,12 @@ public class DynamicHlsController : BaseJellyfinApiController
         [FromQuery] string? tag,
         [FromQuery, ParameterObsolete] string? deviceProfileId,
         [FromQuery] string? playSessionId,
-        [FromQuery] [RegularExpression(EncodingHelper.ContainerValidationRegex)] string? segmentContainer,
+        [FromQuery] [RegularExpression(EncodingHelper.ContainerValidationRegexStr)] string? segmentContainer,
         [FromQuery] int? segmentLength,
         [FromQuery] int? minSegments,
         [FromQuery] string? mediaSourceId,
         [FromQuery] string? deviceId,
-        [FromQuery] [RegularExpression(EncodingHelper.ContainerValidationRegex)] string? audioCodec,
+        [FromQuery] [RegularExpression(EncodingHelper.ContainerValidationRegexStr)] string? audioCodec,
         [FromQuery] bool? enableAutoStreamCopy,
         [FromQuery] bool? allowVideoStreamCopy,
         [FromQuery] bool? allowAudioStreamCopy,
@@ -1317,7 +1317,7 @@ public class DynamicHlsController : BaseJellyfinApiController
         [FromQuery] int? audioChannels,
         [FromQuery] int? maxAudioChannels,
         [FromQuery] string? profile,
-        [FromQuery] [RegularExpression(EncodingHelper.LevelValidationRegex)] string? level,
+        [FromQuery] [RegularExpression(EncodingHelper.LevelValidationRegexStr)] string? level,
         [FromQuery] float? framerate,
         [FromQuery] float? maxFramerate,
         [FromQuery] bool? copyTimestamps,
@@ -1336,8 +1336,8 @@ public class DynamicHlsController : BaseJellyfinApiController
         [FromQuery] int? cpuCoreLimit,
         [FromQuery] string? liveStreamId,
         [FromQuery] bool? enableMpegtsM2TsMode,
-        [FromQuery] [RegularExpression(EncodingHelper.ContainerValidationRegex)] string? videoCodec,
-        [FromQuery] [RegularExpression(EncodingHelper.ContainerValidationRegex)] string? subtitleCodec,
+        [FromQuery] [RegularExpression(EncodingHelper.ContainerValidationRegexStr)] string? videoCodec,
+        [FromQuery] [RegularExpression(EncodingHelper.ContainerValidationRegexStr)] string? subtitleCodec,
         [FromQuery] string? transcodeReasons,
         [FromQuery] int? audioStreamIndex,
         [FromQuery] int? videoStreamIndex,
@@ -1421,10 +1421,20 @@ public class DynamicHlsController : BaseJellyfinApiController
                 cancellationTokenSource.Token)
             .ConfigureAwait(false);
         var mediaSourceId = state.BaseRequest.MediaSourceId;
+        double fps = state.TargetFramerate ?? 0.0f;
+        int segmentLength = state.SegmentLength * 1000;
+
+        // If video is transcoded and framerate is fractional (i.e. 23.976), we need to slightly adjust segment length
+        if (!EncodingHelper.IsCopyCodec(state.OutputVideoCodec) && Math.Abs(fps - Math.Floor(fps + 0.001f)) > 0.001)
+        {
+            double nearestIntFramerate = Math.Ceiling(fps);
+            segmentLength = (int)Math.Ceiling(segmentLength * (nearestIntFramerate / fps));
+        }
+
         var request = new CreateMainPlaylistRequest(
             mediaSourceId is null ? null : Guid.Parse(mediaSourceId),
             state.MediaPath,
-            state.SegmentLength * 1000,
+            segmentLength,
             state.RunTimeTicks ?? 0,
             state.Request.SegmentContainer ?? string.Empty,
             "hls1/main/",
@@ -1839,8 +1849,9 @@ public class DynamicHlsController : BaseJellyfinApiController
             {
                 if (isActualOutputVideoCodecHevc)
                 {
-                    // Prefer dvh1 to dvhe
-                    args += " -tag:v:0 dvh1 -strict -2";
+                    // Use hvc1 for 8.4. This is what Dolby uses for its official sample streams. Tagging with dvh1 would break some players with strict tag checking like Apple Safari.
+                    var codecTag = state.VideoStream.VideoRangeType == VideoRangeType.DOVIWithHLG ? "hvc1" : "dvh1";
+                    args += $" -tag:v:0 {codecTag} -strict -2";
                 }
                 else if (isActualOutputVideoCodecAv1)
                 {

Jellyfin.Api/Controllers/GenresController.cs

@@ -94,6 +94,7 @@ public class GenresController : BaseJellyfinApiController
     {
         userId = RequestHelpers.GetUserId(User, userId);
         var dtoOptions = new DtoOptions { Fields = fields }
+            .AddClientFields(User)
             .AddAdditionalDtoOptions(enableImages, false, imageTypeLimit, enableImageTypes);
 
         User? user = userId.IsNullOrEmpty()
@@ -158,7 +159,8 @@ public class GenresController : BaseJellyfinApiController
     public ActionResult<BaseItemDto> GetGenre([FromRoute, Required] string genreName, [FromQuery] Guid? userId)
     {
         userId = RequestHelpers.GetUserId(User, userId);
-        var dtoOptions = new DtoOptions();
+        var dtoOptions = new DtoOptions()
+            .AddClientFields(User);
 
         Genre? item;
         if (genreName.Contains(BaseItem.SlugChar, StringComparison.OrdinalIgnoreCase))

Jellyfin.Api/Controllers/InstantMixController.cs

@@ -90,6 +90,7 @@ public class InstantMixController : BaseJellyfinApiController
         }
 
         var dtoOptions = new DtoOptions { Fields = fields }
+            .AddClientFields(User)
             .AddAdditionalDtoOptions(enableImages, enableUserData, imageTypeLimit, enableImageTypes);
         var items = _musicManager.GetInstantMixFromItem(item, user, dtoOptions);
         return GetResult(items, user, limit, dtoOptions);
@@ -133,6 +134,7 @@ public class InstantMixController : BaseJellyfinApiController
         }
 
         var dtoOptions = new DtoOptions { Fields = fields }
+            .AddClientFields(User)
             .AddAdditionalDtoOptions(enableImages, enableUserData, imageTypeLimit, enableImageTypes);
         var items = _musicManager.GetInstantMixFromItem(item, user, dtoOptions);
         return GetResult(items, user, limit, dtoOptions);
@@ -176,6 +178,7 @@ public class InstantMixController : BaseJellyfinApiController
         }
 
         var dtoOptions = new DtoOptions { Fields = fields }
+            .AddClientFields(User)
             .AddAdditionalDtoOptions(enableImages, enableUserData, imageTypeLimit, enableImageTypes);
         var items = _musicManager.GetInstantMixFromItem(item, user, dtoOptions);
         return GetResult(items, user, limit, dtoOptions);
@@ -211,6 +214,7 @@ public class InstantMixController : BaseJellyfinApiController
             ? null
             : _userManager.GetUserById(userId.Value);
         var dtoOptions = new DtoOptions { Fields = fields }
+            .AddClientFields(User)
             .AddAdditionalDtoOptions(enableImages, enableUserData, imageTypeLimit, enableImageTypes);
         var items = _musicManager.GetInstantMixFromGenres(new[] { name }, user, dtoOptions);
         return GetResult(items, user, limit, dtoOptions);
@@ -254,6 +258,7 @@ public class InstantMixController : BaseJellyfinApiController
         }
 
         var dtoOptions = new DtoOptions { Fields = fields }
+            .AddClientFields(User)
             .AddAdditionalDtoOptions(enableImages, enableUserData, imageTypeLimit, enableImageTypes);
         var items = _musicManager.GetInstantMixFromItem(item, user, dtoOptions);
         return GetResult(items, user, limit, dtoOptions);
@@ -297,6 +302,7 @@ public class InstantMixController : BaseJellyfinApiController
         }
 
         var dtoOptions = new DtoOptions { Fields = fields }
+            .AddClientFields(User)
             .AddAdditionalDtoOptions(enableImages, enableUserData, imageTypeLimit, enableImageTypes);
         var items = _musicManager.GetInstantMixFromItem(item, user, dtoOptions);
         return GetResult(items, user, limit, dtoOptions);
@@ -379,6 +385,7 @@ public class InstantMixController : BaseJellyfinApiController
         }
 
         var dtoOptions = new DtoOptions { Fields = fields }
+            .AddClientFields(User)
             .AddAdditionalDtoOptions(enableImages, enableUserData, imageTypeLimit, enableImageTypes);
         var items = _musicManager.GetInstantMixFromItem(item, user, dtoOptions);
         return GetResult(items, user, limit, dtoOptions);

Jellyfin.Api/Controllers/ItemUpdateController.cs

@@ -418,7 +418,7 @@ public class ItemUpdateController : BaseJellyfinApiController
         {
             if (item is IHasAlbumArtist hasAlbumArtists)
             {
-                hasAlbumArtists.AlbumArtists = Array.ConvertAll(request.AlbumArtists, i => i.Name);
+                hasAlbumArtists.AlbumArtists = Array.ConvertAll(request.AlbumArtists, i => i.Name.Trim());
             }
         }
 
@@ -426,7 +426,7 @@ public class ItemUpdateController : BaseJellyfinApiController
         {
             if (item is IHasArtist hasArtists)
             {
-                hasArtists.Artists = Array.ConvertAll(request.ArtistItems, i => i.Name);
+                hasArtists.Artists = Array.ConvertAll(request.ArtistItems, i => i.Name.Trim());
             }
         }
 

Jellyfin.Api/Controllers/ItemsController.cs

@@ -268,6 +268,7 @@ public class ItemsController : BaseJellyfinApiController
         }
 
         var dtoOptions = new DtoOptions { Fields = fields }
+            .AddClientFields(User)
             .AddAdditionalDtoOptions(enableImages, enableUserData, imageTypeLimit, enableImageTypes);
 
         if (includeItemTypes.Length == 1
@@ -848,6 +849,7 @@ public class ItemsController : BaseJellyfinApiController
 
         var parentIdGuid = parentId ?? Guid.Empty;
         var dtoOptions = new DtoOptions { Fields = fields }
+            .AddClientFields(User)
             .AddAdditionalDtoOptions(enableImages, enableUserData, imageTypeLimit, enableImageTypes);
 
         var ancestorIds = Array.Empty<Guid>();

Jellyfin.Api/Controllers/LibraryController.cs

@@ -23,6 +23,7 @@ using MediaBrowser.Controller.Entities;
 using MediaBrowser.Controller.Entities.Audio;
 using MediaBrowser.Controller.Entities.Movies;
 using MediaBrowser.Controller.Entities.TV;
+using MediaBrowser.Controller.IO;
 using MediaBrowser.Controller.Library;
 using MediaBrowser.Controller.Providers;
 using MediaBrowser.Model.Activity;
@@ -187,7 +188,7 @@ public class LibraryController : BaseJellyfinApiController
             item = parent;
         }
 
-        var dtoOptions = new DtoOptions();
+        var dtoOptions = new DtoOptions().AddClientFields(User);
         var items = themeItems
             .Select(i => _dtoService.GetBaseItemDto(i, dtoOptions, user, item))
             .ToArray();
@@ -260,7 +261,7 @@ public class LibraryController : BaseJellyfinApiController
             item = parent;
         }
 
-        var dtoOptions = new DtoOptions();
+        var dtoOptions = new DtoOptions().AddClientFields(User);
         var items = themeItems
             .Select(i => _dtoService.GetBaseItemDto(i, dtoOptions, user, item))
             .ToArray();
@@ -496,7 +497,7 @@ public class LibraryController : BaseJellyfinApiController
 
         var baseItemDtos = new List<BaseItemDto>();
 
-        var dtoOptions = new DtoOptions();
+        var dtoOptions = new DtoOptions().AddClientFields(User);
         BaseItem? parent = item.GetParent();
 
         while (parent is not null)
@@ -556,7 +557,7 @@ public class LibraryController : BaseJellyfinApiController
             items = items.Where(i => i.IsHidden == val).ToList();
         }
 
-        var dtoOptions = new DtoOptions();
+        var dtoOptions = new DtoOptions().AddClientFields(User);
         var resultArray = _dtoService.GetBaseItemDtos(items, dtoOptions);
         return new QueryResult<BaseItemDto>(resultArray);
     }
@@ -700,7 +701,18 @@ public class LibraryController : BaseJellyfinApiController
         // Quotes are valid in linux. They'll possibly cause issues here.
         var filename = Path.GetFileName(item.Path)?.Replace("\"", string.Empty, StringComparison.Ordinal);
 
-        return PhysicalFile(item.Path, MimeTypes.GetMimeType(item.Path), filename, true);
+        var filePath = item.Path;
+        if (item.IsFileProtocol)
+        {
+            // PhysicalFile does not work well with symlinks at the moment.
+            var resolved = FileSystemHelper.ResolveLinkTarget(filePath, returnFinalTarget: true);
+            if (resolved is not null && resolved.Exists)
+            {
+                filePath = resolved.FullName;
+            }
+        }
+
+        return PhysicalFile(filePath, MimeTypes.GetMimeType(filePath), filename, true);
     }
 
     /// <summary>
@@ -747,7 +759,8 @@ public class LibraryController : BaseJellyfinApiController
             return new QueryResult<BaseItemDto>();
         }
 
-        var dtoOptions = new DtoOptions { Fields = fields };
+        var dtoOptions = new DtoOptions { Fields = fields }
+            .AddClientFields(User);
 
         var program = item as IHasProgramAttributes;
         bool? isMovie = item is Movie || (program is not null && program.IsMovie) || item is Trailer;

Jellyfin.Api/Controllers/LibraryStructureController.cs

@@ -342,6 +342,17 @@ public class LibraryStructureController : BaseJellyfinApiController
             return NotFound();
         }
 
+        LibraryOptions options = item.GetLibraryOptions();
+        foreach (var mediaPath in request.LibraryOptions!.PathInfos)
+        {
+            if (options.PathInfos.Any(i => i.Path == mediaPath.Path))
+            {
+                continue;
+            }
+
+            _libraryManager.CreateShortcut(item.Path, mediaPath);
+        }
+
         item.UpdateLibraryOptions(request.LibraryOptions);
         return NoContent();
     }

Jellyfin.Api/Controllers/LiveTvController.cs

@@ -170,6 +170,7 @@ public class LiveTvController : BaseJellyfinApiController
     {
         userId = RequestHelpers.GetUserId(User, userId);
         var dtoOptions = new DtoOptions { Fields = fields }
+            .AddClientFields(User)
             .AddAdditionalDtoOptions(enableImages, enableUserData, imageTypeLimit, enableImageTypes);
 
         var channelResult = _liveTvManager.GetInternalChannels(
@@ -241,7 +242,8 @@ public class LiveTvController : BaseJellyfinApiController
             return NotFound();
         }
 
-        var dtoOptions = new DtoOptions();
+        var dtoOptions = new DtoOptions()
+            .AddClientFields(User);
         return _dtoService.GetBaseItemDto(item, dtoOptions, user);
     }
 
@@ -295,6 +297,7 @@ public class LiveTvController : BaseJellyfinApiController
     {
         userId = RequestHelpers.GetUserId(User, userId);
         var dtoOptions = new DtoOptions { Fields = fields }
+            .AddClientFields(User)
             .AddAdditionalDtoOptions(enableImages, enableUserData, imageTypeLimit, enableImageTypes);
 
         return await _liveTvManager.GetRecordingsAsync(
@@ -441,7 +444,8 @@ public class LiveTvController : BaseJellyfinApiController
             return NotFound();
         }
 
-        var dtoOptions = new DtoOptions();
+        var dtoOptions = new DtoOptions()
+            .AddClientFields(User);
 
         return _dtoService.GetBaseItemDto(item, dtoOptions, user);
     }
@@ -454,7 +458,7 @@ public class LiveTvController : BaseJellyfinApiController
     /// <returns>A <see cref="NoContentResult"/>.</returns>
     [HttpPost("Tuners/{tunerId}/Reset")]
     [ProducesResponseType(StatusCodes.Status204NoContent)]
-    [Authorize(Policy = Policies.LiveTvManagement)]
+    [Authorize(Policy = Policies.RequiresElevation)]
     public async Task<ActionResult> ResetTuner([FromRoute, Required] string tunerId)
     {
         await _liveTvManager.ResetTuner(tunerId, CancellationToken.None).ConfigureAwait(false);
@@ -631,6 +635,7 @@ public class LiveTvController : BaseJellyfinApiController
         }
 
         var dtoOptions = new DtoOptions { Fields = fields }
+            .AddClientFields(User)
             .AddAdditionalDtoOptions(enableImages, enableUserData, imageTypeLimit, enableImageTypes);
         return await _liveTvManager.GetPrograms(query, dtoOptions, CancellationToken.None).ConfigureAwait(false);
     }
@@ -685,6 +690,7 @@ public class LiveTvController : BaseJellyfinApiController
         }
 
         var dtoOptions = new DtoOptions { Fields = body.Fields ?? [] }
+            .AddClientFields(User)
             .AddAdditionalDtoOptions(body.EnableImages, body.EnableUserData, body.ImageTypeLimit, body.EnableImageTypes ?? []);
         return await _liveTvManager.GetPrograms(query, dtoOptions, CancellationToken.None).ConfigureAwait(false);
     }
@@ -754,6 +760,7 @@ public class LiveTvController : BaseJellyfinApiController
         };
 
         var dtoOptions = new DtoOptions { Fields = fields }
+            .AddClientFields(User)
             .AddAdditionalDtoOptions(enableImages, enableUserData, imageTypeLimit, enableImageTypes);
         return await _liveTvManager.GetRecommendedProgramsAsync(query, dtoOptions, CancellationToken.None).ConfigureAwait(false);
     }
@@ -976,7 +983,7 @@ public class LiveTvController : BaseJellyfinApiController
     /// <response code="200">Created tuner host returned.</response>
     /// <returns>A <see cref="OkResult"/> containing the created tuner host.</returns>
     [HttpPost("TunerHosts")]
-    [Authorize(Policy = Policies.LiveTvManagement)]
+    [Authorize(Policy = Policies.RequiresElevation)]
     [ProducesResponseType(StatusCodes.Status200OK)]
     public async Task<ActionResult<TunerHostInfo>> AddTunerHost([FromBody] TunerHostInfo tunerHostInfo)
         => await _tunerHostManager.SaveTunerHost(tunerHostInfo).ConfigureAwait(false);
@@ -988,7 +995,7 @@ public class LiveTvController : BaseJellyfinApiController
     /// <response code="204">Tuner host deleted.</response>
     /// <returns>A <see cref="NoContentResult"/>.</returns>
     [HttpDelete("TunerHosts")]
-    [Authorize(Policy = Policies.LiveTvManagement)]
+    [Authorize(Policy = Policies.RequiresElevation)]
     [ProducesResponseType(StatusCodes.Status204NoContent)]
     public ActionResult DeleteTunerHost([FromQuery] string? id)
     {
@@ -1021,7 +1028,7 @@ public class LiveTvController : BaseJellyfinApiController
     /// <response code="200">Created listings provider returned.</response>
     /// <returns>A <see cref="OkResult"/> containing the created listings provider.</returns>
     [HttpPost("ListingProviders")]
-    [Authorize(Policy = Policies.LiveTvManagement)]
+    [Authorize(Policy = Policies.RequiresElevation)]
     [ProducesResponseType(StatusCodes.Status200OK)]
     [SuppressMessage("Microsoft.Performance", "CA5350:RemoveSha1", MessageId = "AddListingProvider", Justification = "Imported from ServiceStack")]
     public async Task<ActionResult<ListingsProviderInfo>> AddListingProvider(
@@ -1047,7 +1054,7 @@ public class LiveTvController : BaseJellyfinApiController
     /// <response code="204">Listing provider deleted.</response>
     /// <returns>A <see cref="NoContentResult"/>.</returns>
     [HttpDelete("ListingProviders")]
-    [Authorize(Policy = Policies.LiveTvManagement)]
+    [Authorize(Policy = Policies.RequiresElevation)]
     [ProducesResponseType(StatusCodes.Status204NoContent)]
     public ActionResult DeleteListingProvider([FromQuery] string? id)
     {
@@ -1080,7 +1087,7 @@ public class LiveTvController : BaseJellyfinApiController
     /// <response code="200">Available countries returned.</response>
     /// <returns>A <see cref="FileResult"/> containing the available countries.</returns>
     [HttpGet("ListingProviders/SchedulesDirect/Countries")]
-    [Authorize(Policy = Policies.LiveTvAccess)]
+    [Authorize(Policy = Policies.RequiresElevation)]
     [ProducesResponseType(StatusCodes.Status200OK)]
     [ProducesFile(MediaTypeNames.Application.Json)]
     public async Task<ActionResult> GetSchedulesDirectCountries()
@@ -1101,7 +1108,7 @@ public class LiveTvController : BaseJellyfinApiController
     /// <response code="200">Channel mapping options returned.</response>
     /// <returns>An <see cref="OkResult"/> containing the channel mapping options.</returns>
     [HttpGet("ChannelMappingOptions")]
-    [Authorize(Policy = Policies.LiveTvAccess)]
+    [Authorize(Policy = Policies.RequiresElevation)]
     [ProducesResponseType(StatusCodes.Status200OK)]
     public Task<ChannelMappingOptionsDto> GetChannelMappingOptions([FromQuery] string? providerId)
         => _listingsManager.GetChannelMappingOptions(providerId);
@@ -1113,7 +1120,7 @@ public class LiveTvController : BaseJellyfinApiController
     /// <response code="200">Created channel mapping returned.</response>
     /// <returns>An <see cref="OkResult"/> containing the created channel mapping.</returns>
     [HttpPost("ChannelMappings")]
-    [Authorize(Policy = Policies.LiveTvManagement)]
+    [Authorize(Policy = Policies.RequiresElevation)]
     [ProducesResponseType(StatusCodes.Status200OK)]
     public Task<TunerChannelMapping> SetChannelMapping([FromBody, Required] SetChannelMappingDto dto)
         => _listingsManager.SetChannelMapping(dto.ProviderId, dto.TunerChannelId, dto.ProviderChannelId);
@@ -1137,7 +1144,7 @@ public class LiveTvController : BaseJellyfinApiController
     /// <returns>An <see cref="OkResult"/> containing the tuners.</returns>
     [HttpGet("Tuners/Discvover", Name = "DiscvoverTuners")]
     [HttpGet("Tuners/Discover")]
-    [Authorize(Policy = Policies.LiveTvManagement)]
+    [Authorize(Policy = Policies.RequiresElevation)]
     [ProducesResponseType(StatusCodes.Status200OK)]
     public IAsyncEnumerable<TunerHostInfo> DiscoverTuners([FromQuery] bool newDevicesOnly = false)
         => _tunerHostManager.DiscoverTuners(newDevicesOnly);
@@ -1185,7 +1192,7 @@ public class LiveTvController : BaseJellyfinApiController
     [ProducesVideoFile]
     public ActionResult GetLiveStreamFile(
         [FromRoute, Required] string streamId,
-        [FromRoute, Required] [RegularExpression(EncodingHelper.ContainerValidationRegex)] string container)
+        [FromRoute, Required] [RegularExpression(EncodingHelper.ContainerValidationRegexStr)] string container)
     {
         var liveStreamInfo = _mediaSourceManager.GetLiveStreamInfoByUniqueId(streamId);
         if (liveStreamInfo is null)

Jellyfin.Api/Controllers/MoviesController.cs

@@ -74,7 +74,8 @@ public class MoviesController : BaseJellyfinApiController
         var user = userId.IsNullOrEmpty()
             ? null
             : _userManager.GetUserById(userId.Value);
-        var dtoOptions = new DtoOptions { Fields = fields };
+        var dtoOptions = new DtoOptions { Fields = fields }
+            .AddClientFields(User);
 
         var categories = new List<RecommendationDto>();
 

Jellyfin.Api/Controllers/MusicGenresController.cs

@@ -94,6 +94,7 @@ public class MusicGenresController : BaseJellyfinApiController
     {
         userId = RequestHelpers.GetUserId(User, userId);
         var dtoOptions = new DtoOptions { Fields = fields }
+            .AddClientFields(User)
             .AddAdditionalDtoOptions(enableImages, false, imageTypeLimit, enableImageTypes);
 
         User? user = userId.IsNullOrEmpty()
@@ -147,7 +148,7 @@ public class MusicGenresController : BaseJellyfinApiController
     public ActionResult<BaseItemDto> GetMusicGenre([FromRoute, Required] string genreName, [FromQuery] Guid? userId)
     {
         userId = RequestHelpers.GetUserId(User, userId);
-        var dtoOptions = new DtoOptions();
+        var dtoOptions = new DtoOptions().AddClientFields(User);
 
         MusicGenre? item;
 

Jellyfin.Api/Controllers/PersonsController.cs

@@ -81,6 +81,7 @@ public class PersonsController : BaseJellyfinApiController
     {
         userId = RequestHelpers.GetUserId(User, userId);
         var dtoOptions = new DtoOptions { Fields = fields }
+            .AddClientFields(User)
             .AddAdditionalDtoOptions(enableImages, enableUserData, imageTypeLimit, enableImageTypes);
 
         User? user = userId.IsNullOrEmpty()
@@ -120,7 +121,8 @@ public class PersonsController : BaseJellyfinApiController
     public ActionResult<BaseItemDto> GetPerson([FromRoute, Required] string name, [FromQuery] Guid? userId)
     {
         userId = RequestHelpers.GetUserId(User, userId);
-        var dtoOptions = new DtoOptions();
+        var dtoOptions = new DtoOptions()
+            .AddClientFields(User);
 
         var item = _libraryManager.GetPerson(name);
         if (item is null)

Jellyfin.Api/Controllers/PlaylistsController.cs

@@ -548,6 +548,7 @@ public class PlaylistsController : BaseJellyfinApiController
         }
 
         var dtoOptions = new DtoOptions { Fields = fields }
+            .AddClientFields(User)
             .AddAdditionalDtoOptions(enableImages, enableUserData, imageTypeLimit, enableImageTypes);
 
         var dtos = _dtoService.GetBaseItemDtos(items.Select(i => i.Item2).ToList(), dtoOptions, user);

Jellyfin.Api/Controllers/StudiosController.cs

@@ -89,6 +89,7 @@ public class StudiosController : BaseJellyfinApiController
     {
         userId = RequestHelpers.GetUserId(User, userId);
         var dtoOptions = new DtoOptions { Fields = fields }
+            .AddClientFields(User)
             .AddAdditionalDtoOptions(enableImages, enableUserData, imageTypeLimit, enableImageTypes);
 
         User? user = userId.IsNullOrEmpty()
@@ -141,7 +142,7 @@ public class StudiosController : BaseJellyfinApiController
     public ActionResult<BaseItemDto> GetStudio([FromRoute, Required] string name, [FromQuery] Guid? userId)
     {
         userId = RequestHelpers.GetUserId(User, userId);
-        var dtoOptions = new DtoOptions();
+        var dtoOptions = new DtoOptions().AddClientFields(User);
 
         var item = _libraryManager.GetStudio(name);
         if (!userId.IsNullOrEmpty())

Jellyfin.Api/Controllers/SuggestionsController.cs

@@ -77,7 +77,7 @@ public class SuggestionsController : BaseJellyfinApiController
             user = _userManager.GetUserById(requestUserId);
         }
 
-        var dtoOptions = new DtoOptions();
+        var dtoOptions = new DtoOptions().AddClientFields(User);
         var result = _libraryManager.GetItemsResult(new InternalItemsQuery(user)
         {
             OrderBy = new[] { (ItemSortBy.Random, SortOrder.Descending) },

Jellyfin.Api/Controllers/SyncPlayController.cs

@@ -58,7 +58,7 @@ public class SyncPlayController : BaseJellyfinApiController
         [FromBody, Required] NewGroupRequestDto requestData)
     {
         var currentSession = await RequestHelpers.GetSession(_sessionManager, _userManager, HttpContext).ConfigureAwait(false);
-        var syncPlayRequest = new NewGroupRequest(requestData.GroupName);
+        var syncPlayRequest = new NewGroupRequest(requestData.GroupName.Trim());
         return Ok(_syncPlayManager.NewGroup(currentSession, syncPlayRequest, CancellationToken.None));
     }
 

Jellyfin.Api/Controllers/TrickplayController.cs

@@ -86,7 +86,7 @@ public class TrickplayController : BaseJellyfinApiController
         [FromRoute, Required] int index,
         [FromQuery] Guid? mediaSourceId)
     {
-        var item = _libraryManager.GetItemById<BaseItem>(itemId, User.GetUserId());
+        var item = _libraryManager.GetItemById<BaseItem>(mediaSourceId ?? itemId, User.GetUserId());
         if (item is null)
         {
             return NotFound();

Jellyfin.Api/Controllers/TvShowsController.cs

@@ -99,6 +99,7 @@ public class TvShowsController : BaseJellyfinApiController
         }
 
         var options = new DtoOptions { Fields = fields }
+            .AddClientFields(User)
             .AddAdditionalDtoOptions(enableImages, enableUserData, imageTypeLimit, enableImageTypes);
 
         var result = _tvSeriesManager.GetNextUp(
@@ -160,6 +161,7 @@ public class TvShowsController : BaseJellyfinApiController
         var parentIdGuid = parentId ?? Guid.Empty;
 
         var options = new DtoOptions { Fields = fields }
+            .AddClientFields(User)
             .AddAdditionalDtoOptions(enableImages, enableUserData, imageTypeLimit, enableImageTypes);
 
         var itemsResult = _libraryManager.GetItemList(new InternalItemsQuery(user)
@@ -229,6 +231,7 @@ public class TvShowsController : BaseJellyfinApiController
         List<BaseItem> episodes;
 
         var dtoOptions = new DtoOptions { Fields = fields }
+            .AddClientFields(User)
             .AddAdditionalDtoOptions(enableImages, enableUserData, imageTypeLimit, enableImageTypes);
         var shouldIncludeMissingEpisodes = (user is not null && user.DisplayMissingEpisodes) || User.GetIsApiKey();
 
@@ -357,6 +360,7 @@ public class TvShowsController : BaseJellyfinApiController
         });
 
         var dtoOptions = new DtoOptions { Fields = fields }
+            .AddClientFields(User)
             .AddAdditionalDtoOptions(enableImages, enableUserData, imageTypeLimit, enableImageTypes);
 
         var returnItems = _dtoService.GetBaseItemDtos(seasons, dtoOptions, user);

Jellyfin.Api/Controllers/UniversalAudioController.cs

@@ -102,13 +102,13 @@ public class UniversalAudioController : BaseJellyfinApiController
         [FromQuery] string? mediaSourceId,
         [FromQuery] string? deviceId,
         [FromQuery] Guid? userId,
-        [FromQuery] [RegularExpression(EncodingHelper.ContainerValidationRegex)] string? audioCodec,
+        [FromQuery] [RegularExpression(EncodingHelper.ContainerValidationRegexStr)] string? audioCodec,
         [FromQuery] int? maxAudioChannels,
         [FromQuery] int? transcodingAudioChannels,
         [FromQuery] int? maxStreamingBitrate,
         [FromQuery] int? audioBitRate,
         [FromQuery] long? startTimeTicks,
-        [FromQuery] [RegularExpression(EncodingHelper.ContainerValidationRegex)] string? transcodingContainer,
+        [FromQuery] [RegularExpression(EncodingHelper.ContainerValidationRegexStr)] string? transcodingContainer,
         [FromQuery] MediaStreamProtocol? transcodingProtocol,
         [FromQuery] int? maxAudioSampleRate,
         [FromQuery] int? maxAudioBitDepth,

Jellyfin.Api/Controllers/UserLibraryController.cs

@@ -94,7 +94,7 @@ public class UserLibraryController : BaseJellyfinApiController
 
         await RefreshItemOnDemandIfNeeded(item).ConfigureAwait(false);
 
-        var dtoOptions = new DtoOptions();
+        var dtoOptions = new DtoOptions().AddClientFields(User);
 
         return _dtoService.GetBaseItemDto(item, dtoOptions, user);
     }
@@ -133,7 +133,7 @@ public class UserLibraryController : BaseJellyfinApiController
         }
 
         var item = _libraryManager.GetUserRootFolder();
-        var dtoOptions = new DtoOptions();
+        var dtoOptions = new DtoOptions().AddClientFields(User);
         return _dtoService.GetBaseItemDto(item, dtoOptions, user);
     }
 
@@ -180,7 +180,7 @@ public class UserLibraryController : BaseJellyfinApiController
         }
 
         var items = await _libraryManager.GetIntros(item, user).ConfigureAwait(false);
-        var dtoOptions = new DtoOptions();
+        var dtoOptions = new DtoOptions().AddClientFields(User);
         var dtos = items.Select(i => _dtoService.GetBaseItemDto(i, dtoOptions, user)).ToArray();
 
         return new QueryResult<BaseItemDto>(dtos);
@@ -422,7 +422,7 @@ public class UserLibraryController : BaseJellyfinApiController
             return NotFound();
         }
 
-        var dtoOptions = new DtoOptions();
+        var dtoOptions = new DtoOptions().AddClientFields(User);
         if (item is IHasTrailers hasTrailers)
         {
             var trailers = hasTrailers.LocalTrailers;
@@ -478,7 +478,7 @@ public class UserLibraryController : BaseJellyfinApiController
             return NotFound();
         }
 
-        var dtoOptions = new DtoOptions();
+        var dtoOptions = new DtoOptions().AddClientFields(User);
 
         return Ok(item
             .GetExtras()
@@ -549,6 +549,7 @@ public class UserLibraryController : BaseJellyfinApiController
         }
 
         var dtoOptions = new DtoOptions { Fields = fields }
+            .AddClientFields(User)
             .AddAdditionalDtoOptions(enableImages, enableUserData, imageTypeLimit, enableImageTypes);
 
         var list = _userViewManager.GetLatestItems(

Jellyfin.Api/Controllers/UserViewsController.cs

@@ -86,7 +86,7 @@ public class UserViewsController : BaseJellyfinApiController
 
         var folders = _userViewManager.GetUserViews(query);
 
-        var dtoOptions = new DtoOptions();
+        var dtoOptions = new DtoOptions().AddClientFields(User);
         dtoOptions.Fields = [..dtoOptions.Fields, ItemFields.PrimaryImageAspectRatio, ItemFields.DisplayPreferencesId];
 
         var dtos = Array.ConvertAll(folders, i => _dtoService.GetBaseItemDto(i, dtoOptions, user));

Jellyfin.Api/Controllers/VideosController.cs

@@ -111,6 +111,7 @@ public class VideosController : BaseJellyfinApiController
         }
 
         var dtoOptions = new DtoOptions();
+        dtoOptions = dtoOptions.AddClientFields(User);
 
         BaseItemDto[] items;
         if (item is Video video)
@@ -314,18 +315,18 @@ public class VideosController : BaseJellyfinApiController
     [ProducesVideoFile]
     public async Task<ActionResult> GetVideoStream(
         [FromRoute, Required] Guid itemId,
-        [FromQuery] [RegularExpression(EncodingHelper.ContainerValidationRegex)] string? container,
+        [FromQuery] [RegularExpression(EncodingHelper.ContainerValidationRegexStr)] string? container,
         [FromQuery] bool? @static,
         [FromQuery] string? @params,
         [FromQuery] string? tag,
         [FromQuery, ParameterObsolete] string? deviceProfileId,
         [FromQuery] string? playSessionId,
-        [FromQuery] [RegularExpression(EncodingHelper.ContainerValidationRegex)] string? segmentContainer,
+        [FromQuery] [RegularExpression(EncodingHelper.ContainerValidationRegexStr)] string? segmentContainer,
         [FromQuery] int? segmentLength,
         [FromQuery] int? minSegments,
         [FromQuery] string? mediaSourceId,
         [FromQuery] string? deviceId,
-        [FromQuery] [RegularExpression(EncodingHelper.ContainerValidationRegex)] string? audioCodec,
+        [FromQuery] [RegularExpression(EncodingHelper.ContainerValidationRegexStr)] string? audioCodec,
         [FromQuery] bool? enableAutoStreamCopy,
         [FromQuery] bool? allowVideoStreamCopy,
         [FromQuery] bool? allowAudioStreamCopy,
@@ -336,7 +337,7 @@ public class VideosController : BaseJellyfinApiController
         [FromQuery] int? audioChannels,
         [FromQuery] int? maxAudioChannels,
         [FromQuery] string? profile,
-        [FromQuery] [RegularExpression(EncodingHelper.LevelValidationRegex)] string? level,
+        [FromQuery] [RegularExpression(EncodingHelper.LevelValidationRegexStr)] string? level,
         [FromQuery] float? framerate,
         [FromQuery] float? maxFramerate,
         [FromQuery] bool? copyTimestamps,
@@ -357,8 +358,8 @@ public class VideosController : BaseJellyfinApiController
         [FromQuery] int? cpuCoreLimit,
         [FromQuery] string? liveStreamId,
         [FromQuery] bool? enableMpegtsM2TsMode,
-        [FromQuery] [RegularExpression(EncodingHelper.ContainerValidationRegex)] string? videoCodec,
-        [FromQuery] [RegularExpression(EncodingHelper.ContainerValidationRegex)] string? subtitleCodec,
+        [FromQuery] [RegularExpression(EncodingHelper.ContainerValidationRegexStr)] string? videoCodec,
+        [FromQuery] [RegularExpression(EncodingHelper.ContainerValidationRegexStr)] string? subtitleCodec,
         [FromQuery] string? transcodeReasons,
         [FromQuery] int? audioStreamIndex,
         [FromQuery] int? videoStreamIndex,
@@ -555,18 +556,18 @@ public class VideosController : BaseJellyfinApiController
     [ProducesVideoFile]
     public Task<ActionResult> GetVideoStreamByContainer(
         [FromRoute, Required] Guid itemId,
-        [FromRoute, Required] [RegularExpression(EncodingHelper.ContainerValidationRegex)] string container,
+        [FromRoute, Required] [RegularExpression(EncodingHelper.ContainerValidationRegexStr)] string container,
         [FromQuery] bool? @static,
         [FromQuery] string? @params,
         [FromQuery] string? tag,
         [FromQuery] string? deviceProfileId,
         [FromQuery] string? playSessionId,
-        [FromQuery] [RegularExpression(EncodingHelper.ContainerValidationRegex)] string? segmentContainer,
+        [FromQuery] [RegularExpression(EncodingHelper.ContainerValidationRegexStr)] string? segmentContainer,
         [FromQuery] int? segmentLength,
         [FromQuery] int? minSegments,
         [FromQuery] string? mediaSourceId,
         [FromQuery] string? deviceId,
-        [FromQuery] [RegularExpression(EncodingHelper.ContainerValidationRegex)] string? audioCodec,
+        [FromQuery] [RegularExpression(EncodingHelper.ContainerValidationRegexStr)] string? audioCodec,
         [FromQuery] bool? enableAutoStreamCopy,
         [FromQuery] bool? allowVideoStreamCopy,
         [FromQuery] bool? allowAudioStreamCopy,
@@ -577,7 +578,7 @@ public class VideosController : BaseJellyfinApiController
         [FromQuery] int? audioChannels,
         [FromQuery] int? maxAudioChannels,
         [FromQuery] string? profile,
-        [FromQuery] [RegularExpression(EncodingHelper.LevelValidationRegex)] string? level,
+        [FromQuery] [RegularExpression(EncodingHelper.LevelValidationRegexStr)] string? level,
         [FromQuery] float? framerate,
         [FromQuery] float? maxFramerate,
         [FromQuery] bool? copyTimestamps,
@@ -598,8 +599,8 @@ public class VideosController : BaseJellyfinApiController
         [FromQuery] int? cpuCoreLimit,
         [FromQuery] string? liveStreamId,
         [FromQuery] bool? enableMpegtsM2TsMode,
-        [FromQuery] [RegularExpression(EncodingHelper.ContainerValidationRegex)] string? videoCodec,
-        [FromQuery] [RegularExpression(EncodingHelper.ContainerValidationRegex)] string? subtitleCodec,
+        [FromQuery] [RegularExpression(EncodingHelper.ContainerValidationRegexStr)] string? videoCodec,
+        [FromQuery] [RegularExpression(EncodingHelper.ContainerValidationRegexStr)] string? subtitleCodec,
         [FromQuery] string? transcodeReasons,
         [FromQuery] int? audioStreamIndex,
         [FromQuery] int? videoStreamIndex,

Jellyfin.Api/Controllers/YearsController.cs

@@ -89,6 +89,7 @@ public class YearsController : BaseJellyfinApiController
     {
         userId = RequestHelpers.GetUserId(User, userId);
         var dtoOptions = new DtoOptions { Fields = fields }
+            .AddClientFields(User)
             .AddAdditionalDtoOptions(enableImages, enableUserData, imageTypeLimit, enableImageTypes);
 
         User? user = userId.IsNullOrEmpty()
@@ -181,7 +182,8 @@ public class YearsController : BaseJellyfinApiController
             return NotFound();
         }
 
-        var dtoOptions = new DtoOptions();
+        var dtoOptions = new DtoOptions()
+            .AddClientFields(User);
 
         if (!userId.IsNullOrEmpty())
         {

Jellyfin.Api/Extensions/DtoExtensions.cs

@@ -1,6 +1,10 @@
+using System;
 using System.Collections.Generic;
+using System.Security.Claims;
+using Jellyfin.Extensions;
 using MediaBrowser.Controller.Dto;
 using MediaBrowser.Model.Entities;
+using MediaBrowser.Model.Querying;
 
 namespace Jellyfin.Api.Extensions;
 
@@ -9,6 +13,55 @@ namespace Jellyfin.Api.Extensions;
 /// </summary>
 public static class DtoExtensions
 {
+    /// <summary>
+    /// Add additional fields depending on client.
+    /// </summary>
+    /// <remarks>
+    /// Use in place of GetDtoOptions.
+    /// Legacy order: 2.
+    /// </remarks>
+    /// <param name="dtoOptions">DtoOptions object.</param>
+    /// <param name="user">Current claims principal.</param>
+    /// <returns>Modified DtoOptions object.</returns>
+    internal static DtoOptions AddClientFields(
+        this DtoOptions dtoOptions, ClaimsPrincipal user)
+    {
+        string? client = user.GetClient();
+
+        // No client in claim
+        if (string.IsNullOrEmpty(client))
+        {
+            return dtoOptions;
+        }
+
+        if (!dtoOptions.ContainsField(ItemFields.RecursiveItemCount))
+        {
+            if (client.Contains("kodi", StringComparison.OrdinalIgnoreCase) ||
+                client.Contains("wmc", StringComparison.OrdinalIgnoreCase) ||
+                client.Contains("media center", StringComparison.OrdinalIgnoreCase) ||
+                client.Contains("classic", StringComparison.OrdinalIgnoreCase))
+            {
+                dtoOptions.Fields = [..dtoOptions.Fields, ItemFields.RecursiveItemCount];
+            }
+        }
+
+        if (!dtoOptions.ContainsField(ItemFields.ChildCount))
+        {
+            if (client.Contains("kodi", StringComparison.OrdinalIgnoreCase) ||
+                client.Contains("wmc", StringComparison.OrdinalIgnoreCase) ||
+                client.Contains("media center", StringComparison.OrdinalIgnoreCase) ||
+                client.Contains("classic", StringComparison.OrdinalIgnoreCase) ||
+                client.Contains("roku", StringComparison.OrdinalIgnoreCase) ||
+                client.Contains("samsung", StringComparison.OrdinalIgnoreCase) ||
+                client.Contains("androidtv", StringComparison.OrdinalIgnoreCase))
+            {
+                dtoOptions.Fields = [..dtoOptions.Fields, ItemFields.ChildCount];
+            }
+        }
+
+        return dtoOptions;
+    }
+
     /// <summary>
     /// Add additional DtoOptions.
     /// </summary>

Jellyfin.Api/Helpers/DynamicHlsHelper.cs

@@ -154,7 +154,7 @@ public class DynamicHlsHelper
         // from universal audio service, need to override the AudioCodec when the actual request differs from original query
         if (!string.Equals(state.OutputAudioCodec, _httpContextAccessor.HttpContext.Request.Query["AudioCodec"].ToString(), StringComparison.OrdinalIgnoreCase))
         {
-            var newQuery = Microsoft.AspNetCore.WebUtilities.QueryHelpers.ParseQuery(_httpContextAccessor.HttpContext.Request.QueryString.ToString());
+            var newQuery = Microsoft.AspNetCore.WebUtilities.QueryHelpers.ParseQuery(queryString);
             newQuery["AudioCodec"] = state.OutputAudioCodec;
             queryString = Microsoft.AspNetCore.WebUtilities.QueryHelpers.AddQueryString(string.Empty, newQuery);
         }
@@ -173,10 +173,21 @@ public class DynamicHlsHelper
             queryString += "&TranscodeReasons=" + state.Request.TranscodeReasons;
         }
 
-        // Main stream
-        var playlistUrl = isLiveStream ? "live.m3u8" : "main.m3u8";
+        // Video rotation metadata is only supported in fMP4 remuxing
+        if (state.VideoStream is not null
+            && state.VideoRequest is not null
+            && (state.VideoStream?.Rotation ?? 0) != 0
+            && EncodingHelper.IsCopyCodec(state.OutputVideoCodec)
+            && !string.IsNullOrWhiteSpace(state.Request.SegmentContainer)
+            && !string.Equals(state.Request.SegmentContainer, "mp4", StringComparison.OrdinalIgnoreCase))
+        {
+            queryString += "&AllowVideoStreamCopy=false";
+        }
 
-        playlistUrl += queryString;
+        // Main stream
+        var baseUrl = isLiveStream ? "live.m3u8" : "main.m3u8";
+        var playlistUrl = baseUrl + queryString;
+        var playlistQuery = Microsoft.AspNetCore.WebUtilities.QueryHelpers.ParseQuery(queryString);
 
         var subtitleStreams = state.MediaSource
             .MediaStreams
@@ -198,37 +209,36 @@ public class DynamicHlsHelper
             AddSubtitles(state, subtitleStreams, builder, _httpContextAccessor.HttpContext.User);
         }
 
-        // Video rotation metadata is only supported in fMP4 remuxing
-        if (state.VideoStream is not null
-            && state.VideoRequest is not null
-            && (state.VideoStream?.Rotation ?? 0) != 0
-            && EncodingHelper.IsCopyCodec(state.OutputVideoCodec)
-            && !string.IsNullOrWhiteSpace(state.Request.SegmentContainer)
-            && !string.Equals(state.Request.SegmentContainer, "mp4", StringComparison.OrdinalIgnoreCase))
-        {
-            playlistUrl += "&AllowVideoStreamCopy=false";
-        }
-
         var basicPlaylist = AppendPlaylist(builder, state, playlistUrl, totalBitrate, subtitleGroup);
 
         if (state.VideoStream is not null && state.VideoRequest is not null)
         {
             var encodingOptions = _serverConfigurationManager.GetEncodingOptions();
 
-            // Provide SDR HEVC entrance for backward compatibility.
-            if (encodingOptions.AllowHevcEncoding
-                && !encodingOptions.AllowAv1Encoding
-                && EncodingHelper.IsCopyCodec(state.OutputVideoCodec)
-                && state.VideoStream.VideoRange == VideoRange.HDR
-                && string.Equals(state.ActualOutputVideoCodec, "hevc", StringComparison.OrdinalIgnoreCase))
+            // Provide AV1 and HEVC SDR entrances for backward compatibility.
+            foreach (var sdrVideoCodec in new[] { "av1", "hevc" })
             {
-                var requestedVideoProfiles = state.GetRequestedProfiles("hevc");
-                if (requestedVideoProfiles is not null && requestedVideoProfiles.Length > 0)
+                var isAv1EncodingAllowed = encodingOptions.AllowAv1Encoding
+                    && string.Equals(sdrVideoCodec, "av1", StringComparison.OrdinalIgnoreCase)
+                    && string.Equals(state.ActualOutputVideoCodec, "av1", StringComparison.OrdinalIgnoreCase);
+                var isHevcEncodingAllowed = encodingOptions.AllowHevcEncoding
+                    && string.Equals(sdrVideoCodec, "hevc", StringComparison.OrdinalIgnoreCase)
+                    && string.Equals(state.ActualOutputVideoCodec, "hevc", StringComparison.OrdinalIgnoreCase);
+                var isEncodingAllowed = isAv1EncodingAllowed || isHevcEncodingAllowed;
+
+                if (isEncodingAllowed
+                    && EncodingHelper.IsCopyCodec(state.OutputVideoCodec)
+                    && state.VideoStream.VideoRange == VideoRange.HDR)
                 {
-                    // Force HEVC Main Profile and disable video stream copy.
-                    state.OutputVideoCodec = "hevc";
-                    var sdrVideoUrl = ReplaceProfile(playlistUrl, "hevc", string.Join(',', requestedVideoProfiles), "main");
-                    sdrVideoUrl += "&AllowVideoStreamCopy=false";
+                    // Force AV1 and HEVC Main Profile and disable video stream copy.
+                    state.OutputVideoCodec = sdrVideoCodec;
+
+                    var sdrPlaylistQuery = playlistQuery;
+                    sdrPlaylistQuery["VideoCodec"] = sdrVideoCodec;
+                    sdrPlaylistQuery[sdrVideoCodec + "-profile"] = "main";
+                    sdrPlaylistQuery["AllowVideoStreamCopy"] = "false";
+
+                    var sdrVideoUrl = Microsoft.AspNetCore.WebUtilities.QueryHelpers.AddQueryString(baseUrl, sdrPlaylistQuery);
 
                     // HACK: Use the same bitrate so that the client can choose by other attributes, such as color range.
                     AppendPlaylist(builder, state, sdrVideoUrl, totalBitrate, subtitleGroup);
@@ -238,12 +248,30 @@ public class DynamicHlsHelper
                 }
             }
 
+            // Provide H.264 SDR entrance for backward compatibility.
+            if (EncodingHelper.IsCopyCodec(state.OutputVideoCodec)
+                && state.VideoStream.VideoRange == VideoRange.HDR)
+            {
+                // Force H.264 and disable video stream copy.
+                state.OutputVideoCodec = "h264";
+
+                var sdrPlaylistQuery = playlistQuery;
+                sdrPlaylistQuery["VideoCodec"] = "h264";
+                sdrPlaylistQuery["AllowVideoStreamCopy"] = "false";
+
+                var sdrVideoUrl = Microsoft.AspNetCore.WebUtilities.QueryHelpers.AddQueryString(baseUrl, sdrPlaylistQuery);
+
+                // HACK: Use the same bitrate so that the client can choose by other attributes, such as color range.
+                AppendPlaylist(builder, state, sdrVideoUrl, totalBitrate, subtitleGroup);
+
+                // Restore the video codec
+                state.OutputVideoCodec = "copy";
+            }
+
             // Provide Level 5.0 entrance for backward compatibility.
             // e.g. Apple A10 chips refuse the master playlist containing SDR HEVC Main Level 5.1 video,
             // but in fact it is capable of playing videos up to Level 6.1.
-            if (encodingOptions.AllowHevcEncoding
-                && !encodingOptions.AllowAv1Encoding
-                && EncodingHelper.IsCopyCodec(state.OutputVideoCodec)
+            if (EncodingHelper.IsCopyCodec(state.OutputVideoCodec)
                 && state.VideoStream.Level.HasValue
                 && state.VideoStream.Level > 150
                 && state.VideoStream.VideoRange == VideoRange.SDR
@@ -273,12 +301,15 @@ public class DynamicHlsHelper
             var variation = GetBitrateVariation(totalBitrate);
 
             var newBitrate = totalBitrate - variation;
-            var variantUrl = ReplaceVideoBitrate(playlistUrl, requestedVideoBitrate, requestedVideoBitrate - variation);
+            var variantQuery = playlistQuery;
+            variantQuery["VideoBitrate"] = (requestedVideoBitrate - variation).ToString(CultureInfo.InvariantCulture);
+            var variantUrl = Microsoft.AspNetCore.WebUtilities.QueryHelpers.AddQueryString(baseUrl, variantQuery);
             AppendPlaylist(builder, state, variantUrl, newBitrate, subtitleGroup);
 
             variation *= 2;
             newBitrate = totalBitrate - variation;
-            variantUrl = ReplaceVideoBitrate(playlistUrl, requestedVideoBitrate, requestedVideoBitrate - variation);
+            variantQuery["VideoBitrate"] = (requestedVideoBitrate - variation).ToString(CultureInfo.InvariantCulture);
+            variantUrl = Microsoft.AspNetCore.WebUtilities.QueryHelpers.AddQueryString(baseUrl, variantQuery);
             AppendPlaylist(builder, state, variantUrl, newBitrate, subtitleGroup);
         }
 
@@ -863,23 +894,6 @@ public class DynamicHlsHelper
         return variation;
     }
 
-    private string ReplaceVideoBitrate(string url, int oldValue, int newValue)
-    {
-        return url.Replace(
-            "videobitrate=" + oldValue.ToString(CultureInfo.InvariantCulture),
-            "videobitrate=" + newValue.ToString(CultureInfo.InvariantCulture),
-            StringComparison.OrdinalIgnoreCase);
-    }
-
-    private string ReplaceProfile(string url, string codec, string oldValue, string newValue)
-    {
-        string profileStr = codec + "-profile=";
-        return url.Replace(
-            profileStr + oldValue,
-            profileStr + newValue,
-            StringComparison.OrdinalIgnoreCase);
-    }
-
     private string ReplacePlaylistCodecsField(StringBuilder playlist, StringBuilder oldValue, StringBuilder newValue)
     {
         var oldPlaylist = playlist.ToString();

Jellyfin.Api/Helpers/StreamingHelpers.cs

@@ -3,6 +3,7 @@ using System.Collections.Generic;
 using System.Globalization;
 using System.IO;
 using System.Linq;
+using System.Text.RegularExpressions;
 using System.Threading;
 using System.Threading.Tasks;
 using Jellyfin.Api.Extensions;
@@ -17,9 +18,7 @@ using MediaBrowser.Controller.MediaEncoding;
 using MediaBrowser.Controller.Streaming;
 using MediaBrowser.Model.Dlna;
 using MediaBrowser.Model.Dto;
-using MediaBrowser.Model.Entities;
 using Microsoft.AspNetCore.Http;
-using Microsoft.AspNetCore.Http.HttpResults;
 using Microsoft.Net.Http.Headers;
 
 namespace Jellyfin.Api.Helpers;
@@ -159,6 +158,13 @@ public static class StreamingHelpers
 
         string? containerInternal = Path.GetExtension(state.RequestedUrl);
 
+        if (string.IsNullOrEmpty(containerInternal)
+            && (!string.IsNullOrWhiteSpace(streamingRequest.LiveStreamId)
+                || (mediaSource != null && mediaSource.IsInfiniteStream)))
+        {
+            containerInternal = ".ts";
+        }
+
         if (!string.IsNullOrEmpty(streamingRequest.Container))
         {
             containerInternal = streamingRequest.Container;
@@ -415,14 +421,18 @@ public static class StreamingHelpers
                     request.Static = string.Equals("true", val, StringComparison.OrdinalIgnoreCase);
                     break;
                 case 4:
-                    if (videoRequest is not null)
+                    if (videoRequest is not null && IsValidCodecName(val))
                     {
                         videoRequest.VideoCodec = val;
                     }
 
                     break;
                 case 5:
-                    request.AudioCodec = val;
+                    if (IsValidCodecName(val))
+                    {
+                        request.AudioCodec = val;
+                    }
+
                     break;
                 case 6:
                     if (videoRequest is not null)
@@ -476,7 +486,7 @@ public static class StreamingHelpers
                     request.StartTimeTicks = long.Parse(val, CultureInfo.InvariantCulture);
                     break;
                 case 15:
-                    if (videoRequest is not null)
+                    if (videoRequest is not null && Regex.IsMatch(val, EncodingHelper.LevelValidationRegexStr))
                     {
                         videoRequest.Level = val;
                     }
@@ -497,7 +507,7 @@ public static class StreamingHelpers
 
                     break;
                 case 18:
-                    if (videoRequest is not null)
+                    if (videoRequest is not null && IsValidCodecName(val))
                     {
                         videoRequest.Profile = val;
                     }
@@ -556,7 +566,11 @@ public static class StreamingHelpers
 
                     break;
                 case 30:
-                    request.SubtitleCodec = val;
+                    if (IsValidCodecName(val))
+                    {
+                        request.SubtitleCodec = val;
+                    }
+
                     break;
                 case 31:
                     if (videoRequest is not null)
@@ -579,6 +593,11 @@ public static class StreamingHelpers
         }
     }
 
+    private static bool IsValidCodecName(string val)
+    {
+        return EncodingHelper.ContainerValidationRegex().IsMatch(val);
+    }
+
     /// <summary>
     /// Parses the container into its file extension.
     /// </summary>

Jellyfin.Api/Models/SyncPlayDtos/NewGroupRequestDto.cs

@@ -1,3 +1,5 @@
+using System.ComponentModel.DataAnnotations;
+
 namespace Jellyfin.Api.Models.SyncPlayDtos;
 
 /// <summary>
@@ -17,5 +19,6 @@ public class NewGroupRequestDto
     /// Gets or sets the group name.
     /// </summary>
     /// <value>The name of the new group.</value>
+    [StringLength(200, ErrorMessage = "Group name must not exceed 200 characters.")]
     public string GroupName { get; set; }
 }

Jellyfin.Api/WebSocketListeners/SessionInfoWebSocketListener.cs

@@ -7,6 +7,7 @@ using MediaBrowser.Controller.Authentication;
 using MediaBrowser.Controller.Library;
 using MediaBrowser.Controller.Net;
 using MediaBrowser.Controller.Session;
+using MediaBrowser.Model.Dto;
 using MediaBrowser.Model.Session;
 using Microsoft.Extensions.Logging;
 
@@ -15,7 +16,7 @@ namespace Jellyfin.Api.WebSocketListeners;
 /// <summary>
 /// Class SessionInfoWebSocketListener.
 /// </summary>
-public class SessionInfoWebSocketListener : BasePeriodicWebSocketListener<IEnumerable<SessionInfo>, WebSocketListenerState>
+public class SessionInfoWebSocketListener : BasePeriodicWebSocketListener<IEnumerable<SessionInfoDto>, WebSocketListenerState>
 {
     private readonly ISessionManager _sessionManager;
     private bool _disposed;
@@ -52,24 +53,26 @@ public class SessionInfoWebSocketListener : BasePeriodicWebSocketListener<IEnume
     /// Gets the data to send.
     /// </summary>
     /// <returns>Task{SystemInfo}.</returns>
-    protected override Task<IEnumerable<SessionInfo>> GetDataToSend()
+    protected override Task<IEnumerable<SessionInfoDto>> GetDataToSend()
     {
-        return Task.FromResult(_sessionManager.Sessions);
+        return Task.FromResult(_sessionManager.Sessions.Select(_sessionManager.ToSessionInfoDto));
     }
 
     /// <inheritdoc />
-    protected override Task<IEnumerable<SessionInfo>> GetDataToSendForConnection(IWebSocketConnection connection)
+    protected override Task<IEnumerable<SessionInfoDto>> GetDataToSendForConnection(IWebSocketConnection connection)
     {
+        var sessions = _sessionManager.Sessions;
+
         // For non-admin users, filter the sessions to only include their own sessions
         if (connection.AuthorizationInfo?.User is not null &&
             !connection.AuthorizationInfo.IsApiKey &&
             !connection.AuthorizationInfo.User.HasPermission(PermissionKind.IsAdministrator))
         {
             var userId = connection.AuthorizationInfo.User.Id;
-            return Task.FromResult(_sessionManager.Sessions.Where(s => s.UserId.Equals(userId) || s.ContainsUser(userId)));
+            sessions = sessions.Where(s => s.UserId.Equals(userId) || s.ContainsUser(userId));
         }
 
-        return Task.FromResult(_sessionManager.Sessions);
+        return Task.FromResult(sessions.Select(_sessionManager.ToSessionInfoDto));
     }
 
     /// <inheritdoc />

Jellyfin.Data/Jellyfin.Data.csproj

@@ -18,7 +18,7 @@
   <PropertyGroup>
     <Authors>Jellyfin Contributors</Authors>
     <PackageId>Jellyfin.Data</PackageId>
-    <VersionPrefix>10.12.0</VersionPrefix>
+    <VersionPrefix>10.11.7</VersionPrefix>
     <RepositoryUrl>https://github.com/jellyfin/jellyfin</RepositoryUrl>
     <PackageLicenseExpression>GPL-3.0-only</PackageLicenseExpression>
   </PropertyGroup>

Jellyfin.Data/UserEntityExtensions.cs

@@ -185,7 +185,7 @@ public static class UserEntityExtensions
         entity.Permissions.Add(new Permission(PermissionKind.EnableSyncTranscoding, true));
         entity.Permissions.Add(new Permission(PermissionKind.EnableAudioPlaybackTranscoding, true));
         entity.Permissions.Add(new Permission(PermissionKind.EnableLiveTvAccess, true));
-        entity.Permissions.Add(new Permission(PermissionKind.EnableLiveTvManagement, true));
+        entity.Permissions.Add(new Permission(PermissionKind.EnableLiveTvManagement, false));
         entity.Permissions.Add(new Permission(PermissionKind.EnableSharedDeviceControl, true));
         entity.Permissions.Add(new Permission(PermissionKind.EnableVideoPlaybackTranscoding, true));
         entity.Permissions.Add(new Permission(PermissionKind.ForceRemoteSourceTranscoding, false));

Jellyfin.Server.Implementations/FullSystemBackup/BackupService.cs

@@ -118,15 +118,21 @@ public class BackupService : IBackupService
                 throw new NotSupportedException($"The loaded archive '{archivePath}' is made for a newer version of Jellyfin ({manifest.ServerVersion}) and cannot be loaded in this version.");
             }
 
-            void CopyDirectory(string source, string target)
+            void CopyDirectory(string source, string target, string[]? exclude = null)
             {
                 var fullSourcePath = NormalizePathSeparator(Path.GetFullPath(source) + Path.DirectorySeparatorChar);
                 var fullTargetRoot = Path.GetFullPath(target) + Path.DirectorySeparatorChar;
+                var excludePaths = exclude?.Select(e => $"{source}/{e}/").ToArray();
                 foreach (var item in zipArchive.Entries)
                 {
                     var sourcePath = NormalizePathSeparator(Path.GetFullPath(item.FullName));
                     var targetPath = Path.GetFullPath(Path.Combine(target, Path.GetRelativePath(source, item.FullName)));
 
+                    if (excludePaths is not null && excludePaths.Any(e => item.FullName.StartsWith(e, StringComparison.Ordinal)))
+                    {
+                        continue;
+                    }
+
                     if (!sourcePath.StartsWith(fullSourcePath, StringComparison.Ordinal)
                         || !targetPath.StartsWith(fullTargetRoot, StringComparison.Ordinal)
                         || Path.EndsInDirectorySeparator(item.FullName))
@@ -142,8 +148,10 @@ public class BackupService : IBackupService
             }
 
             CopyDirectory("Config", _applicationPaths.ConfigurationDirectoryPath);
-            CopyDirectory("Data", _applicationPaths.DataPath);
+            CopyDirectory("Data", _applicationPaths.DataPath, exclude: ["metadata", "metadata-default"]);
             CopyDirectory("Root", _applicationPaths.RootFolderPath);
+            CopyDirectory("Data/metadata", _applicationPaths.InternalMetadataPath);
+            CopyDirectory("Data/metadata-default", _applicationPaths.DefaultInternalMetadataPath);
 
             if (manifest.Options.Database)
             {
@@ -403,6 +411,15 @@ public class BackupService : IBackupService
                 if (backupOptions.Metadata)
                 {
                     CopyDirectory(Path.Combine(_applicationPaths.InternalMetadataPath), Path.Combine("Data", "metadata"));
+
+                    // If a custom metadata path is configured, the default location may still contain data.
+                    if (!string.Equals(
+                            Path.GetFullPath(_applicationPaths.DefaultInternalMetadataPath),
+                            Path.GetFullPath(_applicationPaths.InternalMetadataPath),
+                            StringComparison.OrdinalIgnoreCase))
+                    {
+                        CopyDirectory(Path.Combine(_applicationPaths.DefaultInternalMetadataPath), Path.Combine("Data", "metadata-default"));
+                    }
                 }
 
                 var manifestStream = zipArchive.CreateEntry(ManifestEntryName).Open();

Jellyfin.Server.Implementations/Item/BaseItemRepository.cs

@@ -295,6 +295,25 @@ public sealed class BaseItemRepository
 
         dbQuery = ApplyGroupingFilter(context, dbQuery, filter);
         dbQuery = ApplyQueryPaging(dbQuery, filter);
+
+        var hasRandomSort = filter.OrderBy.Any(e => e.OrderBy == ItemSortBy.Random);
+        if (hasRandomSort)
+        {
+            var orderedIds = dbQuery.Select(e => e.Id).ToList();
+            if (orderedIds.Count == 0)
+            {
+                return Array.Empty<BaseItemDto>();
+            }
+
+            var itemsById = ApplyNavigations(context.BaseItems.Where(e => orderedIds.Contains(e.Id)), filter)
+                .AsEnumerable()
+                .Select(w => DeserializeBaseItem(w, filter.SkipDeserialization))
+                .Where(dto => dto is not null)
+                .ToDictionary(i => i!.Id);
+
+            return orderedIds.Where(itemsById.ContainsKey).Select(id => itemsById[id]).ToArray()!;
+        }
+
         dbQuery = ApplyNavigations(dbQuery, filter);
 
         return dbQuery.AsEnumerable().Where(e => e is not null).Select(w => DeserializeBaseItem(w, filter.SkipDeserialization)).ToArray();
@@ -410,10 +429,25 @@ public sealed class BaseItemRepository
 
     private static IQueryable<BaseItemEntity> ApplyNavigations(IQueryable<BaseItemEntity> dbQuery, InternalItemsQuery filter)
     {
-        dbQuery = dbQuery.Include(e => e.TrailerTypes)
-           .Include(e => e.Provider)
-           .Include(e => e.LockedFields)
-           .Include(e => e.UserData);
+        if (filter.TrailerTypes.Length > 0 || filter.IncludeItemTypes.Contains(BaseItemKind.Trailer))
+        {
+            dbQuery = dbQuery.Include(e => e.TrailerTypes);
+        }
+
+        if (filter.DtoOptions.ContainsField(ItemFields.ProviderIds))
+        {
+            dbQuery = dbQuery.Include(e => e.Provider);
+        }
+
+        if (filter.DtoOptions.ContainsField(ItemFields.Settings))
+        {
+            dbQuery = dbQuery.Include(e => e.LockedFields);
+        }
+
+        if (filter.DtoOptions.EnableUserData)
+        {
+            dbQuery = dbQuery.Include(e => e.UserData);
+        }
 
         if (filter.DtoOptions.EnableImages)
         {
@@ -602,7 +636,6 @@ public sealed class BaseItemRepository
 
         var ids = tuples.Select(f => f.Item.Id).ToArray();
         var existingItems = context.BaseItems.Where(e => ids.Contains(e.Id)).Select(f => f.Id).ToArray();
-        var newItems = tuples.Where(e => !existingItems.Contains(e.Item.Id)).ToArray();
 
         foreach (var item in tuples)
         {
@@ -618,31 +651,24 @@ public sealed class BaseItemRepository
             {
                 context.BaseItemProviders.Where(e => e.ItemId == entity.Id).ExecuteDelete();
                 context.BaseItemImageInfos.Where(e => e.ItemId == entity.Id).ExecuteDelete();
+                context.BaseItemMetadataFields.Where(e => e.ItemId == entity.Id).ExecuteDelete();
 
                 if (entity.Images is { Count: > 0 })
                 {
                     context.BaseItemImageInfos.AddRange(entity.Images);
                 }
 
+                if (entity.LockedFields is { Count: > 0 })
+                {
+                    context.BaseItemMetadataFields.AddRange(entity.LockedFields);
+                }
+
                 context.BaseItems.Attach(entity).State = EntityState.Modified;
             }
         }
 
         context.SaveChanges();
 
-        foreach (var item in newItems)
-        {
-            // reattach old userData entries
-            var userKeys = item.UserDataKey.ToArray();
-            var retentionDate = (DateTime?)null;
-            context.UserData
-                .Where(e => e.ItemId == PlaceholderId)
-                .Where(e => userKeys.Contains(e.CustomDataKey))
-                .ExecuteUpdate(e => e
-                    .SetProperty(f => f.ItemId, item.Item.Id)
-                    .SetProperty(f => f.RetentionDate, retentionDate));
-        }
-
         var itemValueMaps = tuples
             .Select(e => (e.Item, Values: GetItemValuesToSave(e.Item, e.InheritedTags)))
             .ToArray();
@@ -738,6 +764,43 @@ public sealed class BaseItemRepository
         transaction.Commit();
     }
 
+    /// <inheritdoc  />
+    public async Task ReattachUserDataAsync(BaseItemDto item, CancellationToken cancellationToken)
+    {
+        ArgumentNullException.ThrowIfNull(item);
+        cancellationToken.ThrowIfCancellationRequested();
+
+        var dbContext = await _dbProvider.CreateDbContextAsync(cancellationToken).ConfigureAwait(false);
+
+        await using (dbContext.ConfigureAwait(false))
+        {
+            var transaction = await dbContext.Database.BeginTransactionAsync(cancellationToken).ConfigureAwait(false);
+            await using (transaction.ConfigureAwait(false))
+            {
+                var userKeys = item.GetUserDataKeys().ToArray();
+                var retentionDate = (DateTime?)null;
+
+                await dbContext.UserData
+                    .Where(e => e.ItemId == PlaceholderId)
+                    .Where(e => userKeys.Contains(e.CustomDataKey))
+                    .ExecuteUpdateAsync(
+                        e => e
+                            .SetProperty(f => f.ItemId, item.Id)
+                            .SetProperty(f => f.RetentionDate, retentionDate),
+                        cancellationToken).ConfigureAwait(false);
+
+                // Rehydrate the cached userdata
+                item.UserData = await dbContext.UserData
+                    .AsNoTracking()
+                    .Where(e => e.ItemId == item.Id)
+                    .ToArrayAsync(cancellationToken)
+                    .ConfigureAwait(false);
+
+                await transaction.CommitAsync(cancellationToken).ConfigureAwait(false);
+            }
+        }
+    }
+
     /// <inheritdoc  />
     public BaseItemDto? RetrieveItem(Guid id)
     {
@@ -845,7 +908,7 @@ public sealed class BaseItemRepository
         }
 
         dto.ExtraIds = string.IsNullOrWhiteSpace(entity.ExtraIds) ? [] : entity.ExtraIds.Split('|').Select(e => Guid.Parse(e)).ToArray();
-        dto.ProductionLocations = entity.ProductionLocations?.Split('|') ?? [];
+        dto.ProductionLocations = entity.ProductionLocations?.Split('|', StringSplitOptions.RemoveEmptyEntries) ?? [];
         dto.Studios = entity.Studios?.Split('|') ?? [];
         dto.Tags = string.IsNullOrWhiteSpace(entity.Tags) ? [] : entity.Tags.Split('|');
 
@@ -1007,7 +1070,7 @@ public sealed class BaseItemRepository
         }
 
         entity.ExtraIds = dto.ExtraIds is not null ? string.Join('|', dto.ExtraIds) : null;
-        entity.ProductionLocations = dto.ProductionLocations is not null ? string.Join('|', dto.ProductionLocations) : null;
+        entity.ProductionLocations = dto.ProductionLocations is not null ? string.Join('|', dto.ProductionLocations.Where(p => !string.IsNullOrWhiteSpace(p))) : null;
         entity.Studios = dto.Studios is not null ? string.Join('|', dto.Studios) : null;
         entity.Tags = dto.Tags is not null ? string.Join('|', dto.Tags) : null;
         entity.LockedFields = dto.LockedFields is not null ? dto.LockedFields
@@ -1523,43 +1586,50 @@ public sealed class BaseItemRepository
 
     private IQueryable<BaseItemEntity> ApplyOrder(IQueryable<BaseItemEntity> query, InternalItemsQuery filter, JellyfinDbContext context)
     {
-        var orderBy = filter.OrderBy;
+        var orderBy = filter.OrderBy.Where(e => e.OrderBy != ItemSortBy.Default).ToArray();
         var hasSearch = !string.IsNullOrEmpty(filter.SearchTerm);
 
         if (hasSearch)
         {
-            orderBy = filter.OrderBy = [(ItemSortBy.SortName, SortOrder.Ascending), .. orderBy];
+            orderBy = [(ItemSortBy.SortName, SortOrder.Ascending), .. orderBy];
         }
-        else if (orderBy.Count == 0)
+        else if (orderBy.Length == 0)
         {
             return query.OrderBy(e => e.SortName);
         }
 
         IOrderedQueryable<BaseItemEntity>? orderedQuery = null;
 
+        // When searching, prioritize by match quality: exact match > prefix match > contains
+        if (hasSearch)
+        {
+            orderedQuery = query.OrderBy(OrderMapper.MapSearchRelevanceOrder(filter.SearchTerm!));
+        }
+
         var firstOrdering = orderBy.FirstOrDefault();
         if (firstOrdering != default)
         {
             var expression = OrderMapper.MapOrderByField(firstOrdering.OrderBy, filter, context);
-            if (firstOrdering.SortOrder == SortOrder.Ascending)
+            if (orderedQuery is null)
             {
-                orderedQuery = query.OrderBy(expression);
+                // No search relevance ordering, start fresh
+                orderedQuery = firstOrdering.SortOrder == SortOrder.Ascending
+                    ? query.OrderBy(expression)
+                    : query.OrderByDescending(expression);
             }
             else
             {
-                orderedQuery = query.OrderByDescending(expression);
+                // Search relevance ordering already applied, chain with ThenBy
+                orderedQuery = firstOrdering.SortOrder == SortOrder.Ascending
+                    ? orderedQuery.ThenBy(expression)
+                    : orderedQuery.ThenByDescending(expression);
             }
 
             if (firstOrdering.OrderBy is ItemSortBy.Default or ItemSortBy.SortName)
             {
-                if (firstOrdering.SortOrder is SortOrder.Ascending)
-                {
-                    orderedQuery = orderedQuery.ThenBy(e => e.Name);
-                }
-                else
-                {
-                    orderedQuery = orderedQuery.ThenByDescending(e => e.Name);
-                }
+                orderedQuery = firstOrdering.SortOrder is SortOrder.Ascending
+                    ? orderedQuery.ThenBy(e => e.Name)
+                    : orderedQuery.ThenByDescending(e => e.Name);
             }
         }
 
@@ -1647,19 +1717,18 @@ public sealed class BaseItemRepository
         var tags = filter.Tags.ToList();
         var excludeTags = filter.ExcludeTags.ToList();
 
-        if (filter.IsMovie == true)
+        if (filter.IsMovie.HasValue)
         {
-            if (filter.IncludeItemTypes.Length == 0
-                || filter.IncludeItemTypes.Contains(BaseItemKind.Movie)
-                || filter.IncludeItemTypes.Contains(BaseItemKind.Trailer))
+            var shouldIncludeAllMovieTypes = filter.IsMovie.Value
+                && (filter.IncludeItemTypes.Length == 0
+                    || filter.IncludeItemTypes.Contains(BaseItemKind.Movie)
+                    || filter.IncludeItemTypes.Contains(BaseItemKind.Trailer));
+
+            if (!shouldIncludeAllMovieTypes)
             {
-                baseQuery = baseQuery.Where(e => e.IsMovie);
+                baseQuery = baseQuery.Where(e => e.IsMovie == filter.IsMovie.Value);
             }
         }
-        else if (filter.IsMovie.HasValue)
-        {
-            baseQuery = baseQuery.Where(e => e.IsMovie == filter.IsMovie);
-        }
 
         if (filter.IsSeries.HasValue)
         {
@@ -1925,8 +1994,15 @@ public sealed class BaseItemRepository
 
         if (!string.IsNullOrWhiteSpace(filter.Name))
         {
-            var cleanName = GetCleanValue(filter.Name);
-            baseQuery = baseQuery.Where(e => e.CleanName == cleanName);
+            if (filter.UseRawName == true)
+            {
+                baseQuery = baseQuery.Where(e => e.Name == filter.Name);
+            }
+            else
+            {
+                var cleanName = GetCleanValue(filter.Name);
+                baseQuery = baseQuery.Where(e => e.CleanName == cleanName);
+            }
         }
 
         // These are the same, for now
@@ -2420,35 +2496,24 @@ public sealed class BaseItemRepository
 
         if (filter.ExcludeInheritedTags.Length > 0)
         {
+            var excludedTags = filter.ExcludeInheritedTags;
             baseQuery = baseQuery.Where(e =>
-                !e.ItemValues!.Any(f => f.ItemValue.Type == ItemValueType.Tags && filter.ExcludeInheritedTags.Contains(f.ItemValue.CleanValue))
-                && (e.Type != _itemTypeLookup.BaseItemKindNames[BaseItemKind.Episode] || !e.SeriesId.HasValue ||
-                !context.ItemValuesMap.Any(f => f.ItemId == e.SeriesId.Value && f.ItemValue.Type == ItemValueType.Tags && filter.ExcludeInheritedTags.Contains(f.ItemValue.CleanValue))));
+                !e.ItemValues!.Any(f => f.ItemValue.Type == ItemValueType.Tags && excludedTags.Contains(f.ItemValue.CleanValue))
+                && (!e.SeriesId.HasValue || !context.ItemValuesMap.Any(f => f.ItemId == e.SeriesId.Value && f.ItemValue.Type == ItemValueType.Tags && excludedTags.Contains(f.ItemValue.CleanValue))));
         }
 
         if (filter.IncludeInheritedTags.Length > 0)
         {
-            // For seasons and episodes, we also need to check the parent series' tags.
-            if (includeTypes.Any(t => t == BaseItemKind.Episode || t == BaseItemKind.Season))
-            {
-                baseQuery = baseQuery.Where(e =>
-                    e.ItemValues!.Any(f => f.ItemValue.Type == ItemValueType.Tags && filter.IncludeInheritedTags.Contains(f.ItemValue.CleanValue))
-                    || (e.SeriesId.HasValue && context.ItemValuesMap.Any(f => f.ItemId == e.SeriesId.Value && f.ItemValue.Type == ItemValueType.Tags && filter.IncludeInheritedTags.Contains(f.ItemValue.CleanValue))));
-            }
+            var includeTags = filter.IncludeInheritedTags;
+            var isPlaylistOnlyQuery = includeTypes.Length == 1 && includeTypes.FirstOrDefault() == BaseItemKind.Playlist;
+            baseQuery = baseQuery.Where(e =>
+                e.ItemValues!.Any(f => f.ItemValue.Type == ItemValueType.Tags && includeTags.Contains(f.ItemValue.CleanValue))
 
-            // A playlist should be accessible to its owner regardless of allowed tags.
-            else if (includeTypes.Length == 1 && includeTypes.FirstOrDefault() is BaseItemKind.Playlist)
-            {
-                baseQuery = baseQuery.Where(e =>
-                    e.ItemValues!.Any(f => f.ItemValue.Type == ItemValueType.Tags && filter.IncludeInheritedTags.Contains(f.ItemValue.CleanValue))
-                    || e.Data!.Contains($"OwnerUserId\":\"{filter.User!.Id:N}\""));
-                // d        ^^ this is stupid it hate this.
-            }
-            else
-            {
-                baseQuery = baseQuery.Where(e =>
-                    e.ItemValues!.Any(f => f.ItemValue.Type == ItemValueType.Tags && filter.IncludeInheritedTags.Contains(f.ItemValue.CleanValue)));
-            }
+                // For seasons and episodes, we also need to check the parent series' tags.
+                || (e.SeriesId.HasValue && context.ItemValuesMap.Any(f => f.ItemId == e.SeriesId.Value && f.ItemValue.Type == ItemValueType.Tags && includeTags.Contains(f.ItemValue.CleanValue)))
+
+                // A playlist should be accessible to its owner regardless of allowed tags
+                || (isPlaylistOnlyQuery && e.Data!.Contains($"OwnerUserId\":\"{filter.User!.Id:N}\"")));
         }
 
         if (filter.SeriesStatuses.Length > 0)
@@ -2602,6 +2667,21 @@ public sealed class BaseItemRepository
             .Where(e => artistNames.Contains(e.Name))
             .ToArray();
 
-        return artists.GroupBy(e => e.Name).ToDictionary(e => e.Key!, e => e.Select(f => DeserializeBaseItem(f)).Cast<MusicArtist>().ToArray());
+        var lookup = artists
+            .GroupBy(e => e.Name!)
+            .ToDictionary(
+                g => g.Key,
+                g => g.Select(f => DeserializeBaseItem(f)).Where(dto => dto is not null).Cast<MusicArtist>().ToArray());
+
+        var result = new Dictionary<string, MusicArtist[]>(artistNames.Count);
+        foreach (var name in artistNames)
+        {
+            if (lookup.TryGetValue(name, out var artistArray))
+            {
+                result[name] = artistArray;
+            }
+        }
+
+        return result;
     }
 }

Jellyfin.Server.Implementations/Item/OrderMapper.cs

@@ -6,6 +6,7 @@ using System.Linq.Expressions;
 using Jellyfin.Data.Enums;
 using Jellyfin.Database.Implementations;
 using Jellyfin.Database.Implementations.Entities;
+using Jellyfin.Extensions;
 using MediaBrowser.Controller.Entities;
 using Microsoft.EntityFrameworkCore;
 
@@ -68,4 +69,30 @@ public static class OrderMapper
             _ => e => e.SortName
         };
     }
+
+    /// <summary>
+    /// Creates an expression to order search results by match quality.
+    /// Prioritizes: exact match (0) > prefix match with word boundary (1) > prefix match (2) > contains (3).
+    /// </summary>
+    /// <param name="searchTerm">The search term to match against.</param>
+    /// <returns>An expression that returns an integer representing match quality (lower is better).</returns>
+    public static Expression<Func<BaseItemEntity, int>> MapSearchRelevanceOrder(string searchTerm)
+    {
+        var cleanSearchTerm = GetCleanValue(searchTerm);
+        var searchPrefix = cleanSearchTerm + " ";
+        return e =>
+            e.CleanName == cleanSearchTerm ? 0 :
+            e.CleanName!.StartsWith(searchPrefix) ? 1 :
+            e.CleanName!.StartsWith(cleanSearchTerm) ? 2 : 3;
+    }
+
+    private static string GetCleanValue(string value)
+    {
+        if (string.IsNullOrWhiteSpace(value))
+        {
+            return value;
+        }
+
+        return value.RemoveDiacritics().ToLowerInvariant();
+    }
 }

Jellyfin.Server.Implementations/Users/DefaultAuthenticationProvider.cs

@@ -59,7 +59,7 @@ namespace Jellyfin.Server.Implementations.Users
             }
 
             // As long as jellyfin supports password-less users, we need this little block here to accommodate
-            if (string.IsNullOrEmpty(resolvedUser.Password) && string.IsNullOrEmpty(password))
+            if (!HasPassword(resolvedUser) && string.IsNullOrEmpty(password))
             {
                 return Task.FromResult(new ProviderAuthenticationResult
                 {
@@ -93,6 +93,10 @@ namespace Jellyfin.Server.Implementations.Users
             });
         }
 
+        /// <inheritdoc />
+        public bool HasPassword(User user)
+            => !string.IsNullOrEmpty(user?.Password);
+
         /// <inheritdoc />
         public Task ChangePassword(User user, string newPassword)
         {

Jellyfin.Server.Implementations/Users/InvalidAuthProvider.cs

@@ -21,6 +21,12 @@ namespace Jellyfin.Server.Implementations.Users
             throw new AuthenticationException("User Account cannot login with this provider. The Normal provider for this user cannot be found");
         }
 
+        /// <inheritdoc />
+        public bool HasPassword(User user)
+        {
+            return true;
+        }
+
         /// <inheritdoc />
         public Task ChangePassword(User user, string newPassword)
         {

Jellyfin.Server.Implementations/Users/UserManager.cs

@@ -149,7 +149,7 @@ namespace Jellyfin.Server.Implementations.Users
 
             ThrowIfInvalidUsername(newName);
 
-            if (user.Username.Equals(newName, StringComparison.OrdinalIgnoreCase))
+            if (user.Username.Equals(newName, StringComparison.Ordinal))
             {
                 throw new ArgumentException("The new and old names must be different.");
             }
@@ -306,12 +306,15 @@ namespace Jellyfin.Server.Implementations.Users
         /// <inheritdoc/>
         public UserDto GetUserDto(User user, string? remoteEndPoint = null)
         {
+            var hasPassword = GetAuthenticationProvider(user).HasPassword(user);
             var castReceiverApplications = _serverConfigurationManager.Configuration.CastReceiverApplications;
             return new UserDto
             {
                 Name = user.Username,
                 Id = user.Id,
                 ServerId = _appHost.SystemId,
+                HasPassword = hasPassword,
+                HasConfiguredPassword = hasPassword,
                 EnableAutoLogin = user.EnableAutoLogin,
                 LastLoginDate = user.LastLoginDate,
                 LastActivityDate = user.LastActivityDate,

Jellyfin.Server/Migrations/Routines/DisableLegacyAuthorization.cs

@@ -1,32 +0,0 @@
-using System.Threading;
-using System.Threading.Tasks;
-using MediaBrowser.Controller.Configuration;
-
-namespace Jellyfin.Server.Migrations.Routines;
-
-/// <summary>
-/// Migration to disable legacy authorization in the system config.
-/// </summary>
-[JellyfinMigration("2025-11-18T16:00:00", nameof(DisableLegacyAuthorization))]
-public class DisableLegacyAuthorization : IAsyncMigrationRoutine
-{
-    private readonly IServerConfigurationManager _serverConfigurationManager;
-
-    /// <summary>
-    /// Initializes a new instance of the <see cref="DisableLegacyAuthorization"/> class.
-    /// </summary>
-    /// <param name="serverConfigurationManager">Instance of the <see cref="IServerConfigurationManager"/> interface.</param>
-    public DisableLegacyAuthorization(IServerConfigurationManager serverConfigurationManager)
-    {
-        _serverConfigurationManager = serverConfigurationManager;
-    }
-
-    /// <inheritdoc />
-    public Task PerformAsync(CancellationToken cancellationToken)
-    {
-        _serverConfigurationManager.Configuration.EnableLegacyAuthorization = false;
-        _serverConfigurationManager.SaveConfiguration();
-
-        return Task.CompletedTask;
-    }
-}

Jellyfin.Server/Migrations/Routines/FixLibrarySubtitleDownloadLanguages.cs

@@ -0,0 +1,106 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading;
+using System.Threading.Tasks;
+using Jellyfin.Server.ServerSetupApp;
+using MediaBrowser.Controller.Entities;
+using MediaBrowser.Controller.Library;
+using MediaBrowser.Model.Globalization;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.Extensions.Logging;
+
+namespace Jellyfin.Server.Migrations.Routines;
+
+/// <summary>
+/// Migration to fix broken library subtitle download languages.
+/// </summary>
+[JellyfinMigration("2026-02-06T20:00:00", nameof(FixLibrarySubtitleDownloadLanguages))]
+internal class FixLibrarySubtitleDownloadLanguages : IAsyncMigrationRoutine
+{
+    private readonly ILocalizationManager _localizationManager;
+    private readonly ILibraryManager _libraryManager;
+    private readonly ILogger _logger;
+
+    /// <summary>
+    /// Initializes a new instance of the <see cref="FixLibrarySubtitleDownloadLanguages"/> class.
+    /// </summary>
+    /// <param name="localizationManager">The Localization manager.</param>
+    /// <param name="startupLogger">The startup logger for Startup UI integration.</param>
+    /// <param name="libraryManager">The Library manager.</param>
+    /// <param name="logger">The logger.</param>
+    public FixLibrarySubtitleDownloadLanguages(
+        ILocalizationManager localizationManager,
+        IStartupLogger<FixLibrarySubtitleDownloadLanguages> startupLogger,
+        ILibraryManager libraryManager,
+        ILogger<FixLibrarySubtitleDownloadLanguages> logger)
+    {
+        _localizationManager = localizationManager;
+        _libraryManager = libraryManager;
+        _logger = startupLogger.With(logger);
+    }
+
+    /// <inheritdoc />
+    public Task PerformAsync(CancellationToken cancellationToken)
+    {
+        _logger.LogInformation("Starting to fix library subtitle download languages.");
+
+        var virtualFolders = _libraryManager.GetVirtualFolders(false);
+
+        foreach (var virtualFolder in virtualFolders)
+        {
+            var options = virtualFolder.LibraryOptions;
+            if (options.SubtitleDownloadLanguages is null || options.SubtitleDownloadLanguages.Length == 0)
+            {
+                continue;
+            }
+
+            // Some virtual folders don't have a proper item id.
+            if (!Guid.TryParse(virtualFolder.ItemId, out var folderId))
+            {
+                continue;
+            }
+
+            var collectionFolder = _libraryManager.GetItemById<CollectionFolder>(folderId);
+            if (collectionFolder is null)
+            {
+                _logger.LogWarning("Could not find collection folder for virtual folder '{LibraryName}' with id '{FolderId}'. Skipping.", virtualFolder.Name, folderId);
+                continue;
+            }
+
+            var fixedLanguages = new List<string>();
+
+            foreach (var language in options.SubtitleDownloadLanguages)
+            {
+                var foundLanguage = _localizationManager.FindLanguageInfo(language)?.ThreeLetterISOLanguageName;
+                if (foundLanguage is not null)
+                {
+                    // Converted ISO 639-2/B to T (ger to deu)
+                    if (!string.Equals(foundLanguage, language, StringComparison.OrdinalIgnoreCase))
+                    {
+                        _logger.LogInformation("Converted '{Language}' to '{ResolvedLanguage}' in library '{LibraryName}'.", language, foundLanguage, virtualFolder.Name);
+                    }
+
+                    if (fixedLanguages.Contains(foundLanguage, StringComparer.OrdinalIgnoreCase))
+                    {
+                        _logger.LogInformation("Language '{Language}' already exists for library '{LibraryName}'. Skipping duplicate.", foundLanguage, virtualFolder.Name);
+                        continue;
+                    }
+
+                    fixedLanguages.Add(foundLanguage);
+                }
+                else
+                {
+                    _logger.LogInformation("Could not resolve language '{Language}' in library '{LibraryName}'. Skipping.", language, virtualFolder.Name);
+                }
+            }
+
+            options.SubtitleDownloadLanguages = [.. fixedLanguages];
+            collectionFolder.UpdateLibraryOptions(options);
+        }
+
+        _logger.LogInformation("Library subtitle download languages fixed.");
+
+        return Task.CompletedTask;
+    }
+}

Jellyfin.Server/Migrations/Routines/MigrateLibraryDb.cs

@@ -464,6 +464,16 @@ internal class MigrateLibraryDb : IDatabaseMigrationRoutine
 
         SqliteConnection.ClearAllPools();
 
+        using (var checkpointConnection = new SqliteConnection($"Filename={libraryDbPath}"))
+        {
+            checkpointConnection.Open();
+            using var cmd = checkpointConnection.CreateCommand();
+            cmd.CommandText = "PRAGMA wal_checkpoint(TRUNCATE);";
+            cmd.ExecuteNonQuery();
+        }
+
+        SqliteConnection.ClearAllPools();
+
         _logger.LogInformation("Move {0} to {1}.", libraryDbPath, libraryDbPath + ".old");
         File.Move(libraryDbPath, libraryDbPath + ".old", true);
     }
@@ -1163,7 +1173,9 @@ internal class MigrateLibraryDb : IDatabaseMigrationRoutine
                 Item = null!,
                 ProviderId = e[0],
                 ProviderValue = string.Join('|', e.Skip(1))
-            }).ToArray();
+            })
+            .DistinctBy(e => e.ProviderId)
+            .ToArray();
         }
 
         if (reader.TryGetString(index++, out var imageInfos))

Jellyfin.Server/Resources/Configuration/logging.json

@@ -11,7 +11,7 @@
             {
                 "Name": "Console",
                 "Args": {
-                    "outputTemplate": "[{Timestamp:HH:mm:ss.fff}] [{Level:u3}] [{ThreadId}] {SourceContext}: {Message:lj}{NewLine}{Exception}"
+                    "outputTemplate": "[{Timestamp:HH:mm:ss}] [{Level:u3}] [{ThreadId}] {SourceContext}: {Message:lj}{NewLine}{Exception}"
                 }
             },
             {

Jellyfin.Server/ServerSetupApp/SetupServer.cs

@@ -249,7 +249,6 @@ public sealed class SetupServer : IDisposable
                                             {
                                                 { "isInReportingMode", _isUnhealthy },
                                                 { "retryValue", retryAfterValue },
-                                                { "version", typeof(Emby.Server.Implementations.ApplicationHost).Assembly.GetName().Version! },
                                                 { "logs", startupLogEntries },
                                                 { "networkManagerReady", networkManager is not null },
                                                 { "localNetworkRequest", networkManager is not null && context.Connection.RemoteIpAddress is not null && networkManager.IsInLocalNetwork(context.Connection.RemoteIpAddress) }

Jellyfin.Server/ServerSetupApp/index.mstemplate.html

@@ -173,7 +173,7 @@
         <header class="flex-row">
 
             {{^IF isInReportingMode}}
-            <p>Jellyfin Server {{version}} still starting. Please wait.</p>
+            <p>Jellyfin Server still starting. Please wait.</p>
             {{#ELSE}}
             <p>Jellyfin Server has encountered an error and was not able to start.</p>
             {{/ELSE}}

MediaBrowser.Common/MediaBrowser.Common.csproj

@@ -8,7 +8,7 @@
   <PropertyGroup>
     <Authors>Jellyfin Contributors</Authors>
     <PackageId>Jellyfin.Common</PackageId>
-    <VersionPrefix>10.12.0</VersionPrefix>
+    <VersionPrefix>10.11.7</VersionPrefix>
     <RepositoryUrl>https://github.com/jellyfin/jellyfin</RepositoryUrl>
     <PackageLicenseExpression>GPL-3.0-only</PackageLicenseExpression>
   </PropertyGroup>

MediaBrowser.Controller/Authentication/IAuthenticationProvider.cs

@@ -14,6 +14,8 @@ namespace MediaBrowser.Controller.Authentication
 
         Task<ProviderAuthenticationResult> Authenticate(string username, string password);
 
+        bool HasPassword(User user);
+
         Task ChangePassword(User user, string newPassword);
     }
 

MediaBrowser.Controller/Entities/BaseItem.cs

@@ -1172,11 +1172,18 @@ namespace MediaBrowser.Controller.Entities
                 info.Video3DFormat = video.Video3DFormat;
                 info.Timestamp = video.Timestamp;
 
-                if (video.IsShortcut)
+                if (video.IsShortcut && !string.IsNullOrEmpty(video.ShortcutPath))
                 {
-                    info.IsRemote = true;
-                    info.Path = video.ShortcutPath;
-                    info.Protocol = MediaSourceManager.GetPathProtocol(info.Path);
+                    var shortcutProtocol = MediaSourceManager.GetPathProtocol(video.ShortcutPath);
+
+                    // Only allow remote shortcut paths — local file paths in .strm files
+                    // could be used to read arbitrary files from the server.
+                    if (shortcutProtocol != MediaProtocol.File)
+                    {
+                        info.IsRemote = true;
+                        info.Path = video.ShortcutPath;
+                        info.Protocol = shortcutProtocol;
+                    }
                 }
 
                 if (string.IsNullOrEmpty(info.Container))
@@ -1620,12 +1627,17 @@ namespace MediaBrowser.Controller.Entities
                 return isAllowed;
             }
 
-            if (maxAllowedSubRating is not null)
+            if (!maxAllowedRating.HasValue)
             {
-                return (ratingScore.SubScore ?? 0) <= maxAllowedSubRating && ratingScore.Score <= maxAllowedRating.Value;
+                return true;
             }
 
-            return !maxAllowedRating.HasValue || ratingScore.Score <= maxAllowedRating.Value;
+            if (ratingScore.Score != maxAllowedRating.Value)
+            {
+                return ratingScore.Score < maxAllowedRating.Value;
+            }
+
+            return !maxAllowedSubRating.HasValue || (ratingScore.SubScore ?? 0) <= maxAllowedSubRating.Value;
         }
 
         public ParentalRatingScore GetParentalRatingScore()
@@ -2048,6 +2060,9 @@ namespace MediaBrowser.Controller.Entities
         public virtual async Task UpdateToRepositoryAsync(ItemUpdateType updateReason, CancellationToken cancellationToken)
          => await LibraryManager.UpdateItemAsync(this, GetParent(), updateReason, cancellationToken).ConfigureAwait(false);
 
+        public async Task ReattachUserDataAsync(CancellationToken cancellationToken) =>
+            await LibraryManager.ReattachUserDataAsync(this, cancellationToken).ConfigureAwait(false);
+
         /// <summary>
         /// Validates that images within the item are still on the filesystem.
         /// </summary>

MediaBrowser.Controller/Entities/Folder.cs

@@ -452,6 +452,7 @@ namespace MediaBrowser.Controller.Entities
                 // That's all the new and changed ones - now see if any have been removed and need cleanup
                 var itemsRemoved = currentChildren.Values.Except(validChildren).ToList();
                 var shouldRemove = !IsRoot || allowRemoveRoot;
+                var actuallyRemoved = new List<BaseItem>();
                 // If it's an AggregateFolder, don't remove
                 if (shouldRemove && itemsRemoved.Count > 0)
                 {
@@ -467,6 +468,7 @@ namespace MediaBrowser.Controller.Entities
                         {
                             Logger.LogDebug("Removed item: {Path}", item.Path);
 
+                            actuallyRemoved.Add(item);
                             item.SetParent(null);
                             LibraryManager.DeleteItem(item, new DeleteOptions { DeleteFileLocation = false }, this, false);
                         }
@@ -477,6 +479,20 @@ namespace MediaBrowser.Controller.Entities
                 {
                     LibraryManager.CreateItems(newItems, this, cancellationToken);
                 }
+
+                // After removing items, reattach any detached user data to remaining children
+                // that share the same user data keys (eg. same episode replaced with a new file).
+                if (actuallyRemoved.Count > 0)
+                {
+                    var removedKeys = actuallyRemoved.SelectMany(i => i.GetUserDataKeys()).ToHashSet();
+                    foreach (var child in validChildren)
+                    {
+                        if (child.GetUserDataKeys().Any(removedKeys.Contains))
+                        {
+                            await child.ReattachUserDataAsync(cancellationToken).ConfigureAwait(false);
+                        }
+                    }
+                }
             }
             else
             {
@@ -1406,13 +1422,6 @@ namespace MediaBrowser.Controller.Entities
                 .Where(e => query is null || UserViewBuilder.FilterItem(e, query))
                 .ToArray();
 
-            if (this is BoxSet && (query.OrderBy is null || query.OrderBy.Count == 0))
-            {
-                realChildren = realChildren
-                    .OrderBy(e => e.ProductionYear ?? int.MaxValue)
-                    .ToArray();
-            }
-
             var childCount = realChildren.Length;
             if (result.Count < limit)
             {

MediaBrowser.Controller/Entities/InternalItemsQuery.cs

@@ -125,6 +125,8 @@ namespace MediaBrowser.Controller.Entities
 
         public string? Name { get; set; }
 
+        public bool? UseRawName { get; set; }
+
         public string? Person { get; set; }
 
         public Guid[] PersonIds { get; set; }

MediaBrowser.Controller/Entities/Movies/BoxSet.cs

@@ -124,7 +124,7 @@ namespace MediaBrowser.Controller.Entities.Movies
 
             if (sortBy == ItemSortBy.Default)
             {
-              return items;
+                return items;
             }
 
             return LibraryManager.Sort(items, user, new[] { sortBy }, SortOrder.Ascending);
@@ -136,6 +136,12 @@ namespace MediaBrowser.Controller.Entities.Movies
             return Sort(children, user).ToArray();
         }
 
+        public override IReadOnlyList<BaseItem> GetChildren(User user, bool includeLinkedChildren, out int totalItemCount, InternalItemsQuery query = null)
+        {
+            var children = base.GetChildren(user, includeLinkedChildren, out totalItemCount, query);
+            return Sort(children, user).ToArray();
+        }
+
         public override IReadOnlyList<BaseItem> GetRecursiveChildren(User user, InternalItemsQuery query, out int totalCount)
         {
             var children = base.GetRecursiveChildren(user, query, out totalCount);

MediaBrowser.Controller/Entities/TV/Season.cs

@@ -201,12 +201,17 @@ namespace MediaBrowser.Controller.Entities.TV
 
         public List<BaseItem> GetEpisodes(Series series, User user, IEnumerable<Episode> allSeriesEpisodes, DtoOptions options, bool shouldIncludeMissingEpisodes)
         {
+            if (series is null)
+            {
+                return [];
+            }
+
             return series.GetSeasonEpisodes(this, user, allSeriesEpisodes, options, shouldIncludeMissingEpisodes);
         }
 
         public List<BaseItem> GetEpisodes()
         {
-            return Series.GetSeasonEpisodes(this, null, null, new DtoOptions(true), true);
+            return GetEpisodes(Series, null, null, new DtoOptions(true), true);
         }
 
         public override List<BaseItem> GetChildren(User user, bool includeLinkedChildren, InternalItemsQuery query)

MediaBrowser.Controller/Entities/TV/Series.cs

@@ -214,7 +214,7 @@ namespace MediaBrowser.Controller.Entities.TV
             query.AncestorWithPresentationUniqueKey = null;
             query.SeriesPresentationUniqueKey = seriesKey;
             query.IncludeItemTypes = new[] { BaseItemKind.Season };
-            query.OrderBy = new[] { (ItemSortBy.IndexNumber, SortOrder.Ascending) };
+            query.OrderBy = new[] { (ItemSortBy.SortName, SortOrder.Ascending) };
 
             if (user is not null && !user.DisplayMissingEpisodes)
             {
@@ -247,6 +247,10 @@ namespace MediaBrowser.Controller.Entities.TV
 
                 query.AncestorWithPresentationUniqueKey = null;
                 query.SeriesPresentationUniqueKey = seriesKey;
+                if (query.OrderBy.Count == 0)
+                {
+                    query.OrderBy = new[] { (ItemSortBy.SortName, SortOrder.Ascending) };
+                }
 
                 if (query.IncludeItemTypes.Length == 0)
                 {

MediaBrowser.Controller/IO/FileSystemHelper.cs

@@ -63,6 +63,29 @@ public static class FileSystemHelper
         }
     }
 
+    /// <summary>
+    /// Resolves a single link hop for the specified path.
+    /// </summary>
+    /// <remarks>
+    /// Returns <c>null</c> if the path is not a symbolic link or the filesystem does not support link resolution (e.g., exFAT).
+    /// </remarks>
+    /// <param name="path">The file path to resolve.</param>
+    /// <returns>
+    /// A <see cref="FileInfo"/> representing the next link target if the path is a link; otherwise, <c>null</c>.
+    /// </returns>
+    private static FileInfo? Resolve(string path)
+    {
+        try
+        {
+            return File.ResolveLinkTarget(path, returnFinalTarget: false) as FileInfo;
+        }
+        catch (IOException)
+        {
+            // Filesystem doesn't support links (e.g., exFAT).
+            return null;
+        }
+    }
+
     /// <summary>
     /// Gets the target of the specified file link.
     /// </summary>
@@ -84,23 +107,26 @@ public static class FileSystemHelper
 
         if (!returnFinalTarget)
         {
-            return File.ResolveLinkTarget(linkPath, returnFinalTarget: false) as FileInfo;
+            return Resolve(linkPath);
         }
 
-        if (File.ResolveLinkTarget(linkPath, returnFinalTarget: false) is not FileInfo targetInfo)
-        {
-            return null;
-        }
-
-        if (!targetInfo.Exists)
+        var targetInfo = Resolve(linkPath);
+        if (targetInfo is null || !targetInfo.Exists)
         {
             return targetInfo;
         }
 
         var currentPath = targetInfo.FullName;
         var visited = new HashSet<string>(StringComparer.Ordinal) { linkPath, currentPath };
-        while (File.ResolveLinkTarget(currentPath, returnFinalTarget: false) is FileInfo linkInfo)
+
+        while (true)
         {
+            var linkInfo = Resolve(currentPath);
+            if (linkInfo is null)
+            {
+                break;
+            }
+
             var targetPath = linkInfo.FullName;
 
             // If an infinite loop is detected, return the file info for the

MediaBrowser.Controller/Library/ILibraryManager.cs

@@ -281,6 +281,14 @@ namespace MediaBrowser.Controller.Library
         /// <returns>Returns a Task that can be awaited.</returns>
         Task UpdateItemAsync(BaseItem item, BaseItem parent, ItemUpdateType updateReason, CancellationToken cancellationToken);
 
+        /// <summary>
+        /// Reattaches the user data to the item.
+        /// </summary>
+        /// <param name="item">The item.</param>
+        /// <param name="cancellationToken">The cancellation token.</param>
+        /// <returns>A task that represents the asynchronous reattachment operation.</returns>
+        Task ReattachUserDataAsync(BaseItem item, CancellationToken cancellationToken);
+
         /// <summary>
         /// Retrieves the item.
         /// </summary>
@@ -652,5 +660,12 @@ namespace MediaBrowser.Controller.Library
         /// This exists so plugins can trigger a library scan.
         /// </remarks>
         void QueueLibraryScan();
+
+        /// <summary>
+        /// Add mblink file for a media path.
+        /// </summary>
+        /// <param name="virtualFolderPath">The path to the virtualfolder.</param>
+        /// <param name="pathInfo">The new virtualfolder.</param>
+        public void CreateShortcut(string virtualFolderPath, MediaPathInfo pathInfo);
     }
 }

MediaBrowser.Controller/LibraryTaskScheduler/LimitedConcurrencyLibraryScheduler.cs

@@ -4,6 +4,7 @@ using System.Collections.Generic;
 using System.Diagnostics;
 using System.Linq;
 using System.Threading;
+using System.Threading.Channels;
 using System.Threading.Tasks;
 using MediaBrowser.Controller.Configuration;
 using Microsoft.Extensions.Hosting;
@@ -29,7 +30,7 @@ public sealed class LimitedConcurrencyLibraryScheduler : ILimitedConcurrencyLibr
     /// </summary>
     private readonly Lock _taskLock = new();
 
-    private readonly BlockingCollection<TaskQueueItem> _tasks = new();
+    private readonly Channel<TaskQueueItem> _tasks = Channel.CreateUnbounded<TaskQueueItem>();
 
     private volatile int _workCounter;
     private Task? _cleanupTask;
@@ -77,7 +78,7 @@ public sealed class LimitedConcurrencyLibraryScheduler : ILimitedConcurrencyLibr
 
             lock (_taskLock)
             {
-                if (_tasks.Count > 0 || _workCounter > 0)
+                if (_tasks.Reader.Count > 0 || _workCounter > 0)
                 {
                     _logger.LogDebug("Delay cleanup task, operations still running.");
                     // tasks are still there so its still in use. Reschedule cleanup task.
@@ -144,9 +145,9 @@ public sealed class LimitedConcurrencyLibraryScheduler : ILimitedConcurrencyLibr
         _deadlockDetector.Value = stopToken.TaskStop;
         try
         {
-            foreach (var item in _tasks.GetConsumingEnumerable(stopToken.GlobalStop.Token))
+            while (!stopToken.GlobalStop.Token.IsCancellationRequested)
             {
-                stopToken.GlobalStop.Token.ThrowIfCancellationRequested();
+                var item = await _tasks.Reader.ReadAsync(stopToken.GlobalStop.Token).ConfigureAwait(false);
                 try
                 {
                     var newWorkerLimit = Interlocked.Increment(ref _workCounter) > 0;
@@ -242,7 +243,7 @@ public sealed class LimitedConcurrencyLibraryScheduler : ILimitedConcurrencyLibr
             };
         }).ToArray();
 
-        if (ShouldForceSequentialOperation())
+        if (ShouldForceSequentialOperation() || _deadlockDetector.Value is not null)
         {
             _logger.LogDebug("Process sequentially.");
             try
@@ -264,35 +265,14 @@ public sealed class LimitedConcurrencyLibraryScheduler : ILimitedConcurrencyLibr
         for (var i = 0; i < workItems.Length; i++)
         {
             var item = workItems[i]!;
-            _tasks.Add(item, CancellationToken.None);
+            await _tasks.Writer.WriteAsync(item, CancellationToken.None).ConfigureAwait(false);
         }
 
-        if (_deadlockDetector.Value is not null)
-        {
-            _logger.LogDebug("Nested invocation detected, process in-place.");
-            try
-            {
-                // we are in a nested loop. There is no reason to spawn a task here as that would just lead to deadlocks and no additional concurrency is achieved
-                while (workItems.Any(e => !e.Done.Task.IsCompleted) && _tasks.TryTake(out var item, 200, _deadlockDetector.Value.Token))
-                {
-                    await ProcessItem(item).ConfigureAwait(false);
-                }
-            }
-            catch (OperationCanceledException) when (_deadlockDetector.Value.IsCancellationRequested)
-            {
-                // operation is cancelled. Do nothing.
-            }
-
-            _logger.LogDebug("process in-place done.");
-        }
-        else
-        {
-            Worker();
-            _logger.LogDebug("Wait for {NoWorkers} to complete.", workItems.Length);
-            await Task.WhenAll([.. workItems.Select(f => f.Done.Task)]).ConfigureAwait(false);
-            _logger.LogDebug("{NoWorkers} completed.", workItems.Length);
-            ScheduleTaskCleanup();
-        }
+        Worker();
+        _logger.LogDebug("Wait for {NoWorkers} to complete.", workItems.Length);
+        await Task.WhenAll([.. workItems.Select(f => f.Done.Task)]).ConfigureAwait(false);
+        _logger.LogDebug("{NoWorkers} completed.", workItems.Length);
+        ScheduleTaskCleanup();
     }
 
     /// <inheritdoc/>
@@ -304,13 +284,12 @@ public sealed class LimitedConcurrencyLibraryScheduler : ILimitedConcurrencyLibr
         }
 
         _disposed = true;
-        _tasks.CompleteAdding();
+        _tasks.Writer.Complete();
         foreach (var item in _taskRunners)
         {
             await item.Key.CancelAsync().ConfigureAwait(false);
         }
 
-        _tasks.Dispose();
         if (_cleanupTask is not null)
         {
             await _cleanupTask.ConfigureAwait(false);

MediaBrowser.Controller/MediaBrowser.Controller.csproj

@@ -8,7 +8,7 @@
   <PropertyGroup>
     <Authors>Jellyfin Contributors</Authors>
     <PackageId>Jellyfin.Controller</PackageId>
-    <VersionPrefix>10.12.0</VersionPrefix>
+    <VersionPrefix>10.11.7</VersionPrefix>
     <RepositoryUrl>https://github.com/jellyfin/jellyfin</RepositoryUrl>
     <PackageLicenseExpression>GPL-3.0-only</PackageLicenseExpression>
   </PropertyGroup>

MediaBrowser.Controller/MediaEncoding/EncodingHelper.cs

@@ -33,18 +33,18 @@ namespace MediaBrowser.Controller.MediaEncoding
     public partial class EncodingHelper
     {
         /// <summary>
-        /// The codec validation regex.
+        /// The codec validation regex string.
         /// This regular expression matches strings that consist of alphanumeric characters, hyphens,
         /// periods, underscores, commas, and vertical bars, with a length between 0 and 40 characters.
         /// This should matches all common valid codecs.
         /// </summary>
-        public const string ContainerValidationRegex = @"^[a-zA-Z0-9\-\._,|]{0,40}$";
+        public const string ContainerValidationRegexStr = @"^[a-zA-Z0-9\-\._,|]{0,40}$";
 
         /// <summary>
-        /// The level validation regex.
+        /// The level validation regex string.
         /// This regular expression matches strings representing a double.
         /// </summary>
-        public const string LevelValidationRegex = @"-?[0-9]+(?:\.[0-9]+)?";
+        public const string LevelValidationRegexStr = @"-?[0-9]+(?:\.[0-9]+)?";
 
         private const string _defaultMjpegEncoder = "mjpeg";
 
@@ -85,8 +85,7 @@ namespace MediaBrowser.Controller.MediaEncoding
         private readonly Version _minFFmpegVaapiDeviceVendorId = new Version(7, 0, 1);
         private readonly Version _minFFmpegQsvVppScaleModeOption = new Version(6, 0);
         private readonly Version _minFFmpegRkmppHevcDecDoviRpu = new Version(7, 1, 1);
-
-        private static readonly Regex _containerValidationRegex = new(ContainerValidationRegex, RegexOptions.Compiled);
+        private readonly Version _minFFmpegReadrateCatchupOption = new Version(8, 0);
 
         private static readonly string[] _videoProfilesH264 =
         [
@@ -180,6 +179,15 @@ namespace MediaBrowser.Controller.MediaEncoding
             RemoveHdr10Plus,
         }
 
+        /// <summary>
+        /// The codec validation regex.
+        /// This regular expression matches strings that consist of alphanumeric characters, hyphens,
+        /// periods, underscores, commas, and vertical bars, with a length between 0 and 40 characters.
+        /// This should matches all common valid codecs.
+        /// </summary>
+        [GeneratedRegex(@"^[a-zA-Z0-9\-\._,|]{0,40}$")]
+        public static partial Regex ContainerValidationRegex();
+
         [GeneratedRegex(@"\s+")]
         private static partial Regex WhiteSpaceRegex();
 
@@ -476,7 +484,7 @@ namespace MediaBrowser.Controller.MediaEncoding
                     return GetMjpegEncoder(state, encodingOptions);
                 }
 
-                if (_containerValidationRegex.IsMatch(codec))
+                if (ContainerValidationRegex().IsMatch(codec))
                 {
                     return codec.ToLowerInvariant();
                 }
@@ -517,7 +525,7 @@ namespace MediaBrowser.Controller.MediaEncoding
 
         public static string GetInputFormat(string container)
         {
-            if (string.IsNullOrEmpty(container) || !_containerValidationRegex.IsMatch(container))
+            if (string.IsNullOrEmpty(container) || !ContainerValidationRegex().IsMatch(container))
             {
                 return null;
             }
@@ -735,7 +743,7 @@ namespace MediaBrowser.Controller.MediaEncoding
         {
             var codec = state.OutputAudioCodec;
 
-            if (!_containerValidationRegex.IsMatch(codec))
+            if (!ContainerValidationRegex().IsMatch(codec))
             {
                 codec = "aac";
             }
@@ -1267,6 +1275,20 @@ namespace MediaBrowser.Controller.MediaEncoding
                     }
                 }
 
+                // Use analyzeduration also for subtitle streams to improve resolution detection  with streams inside MKS files
+                var analyzeDurationArgument = GetFfmpegAnalyzeDurationArg(state);
+                if (!string.IsNullOrEmpty(analyzeDurationArgument))
+                {
+                    arg.Append(' ').Append(analyzeDurationArgument);
+                }
+
+                // Apply probesize, too, if configured
+                var ffmpegProbeSizeArgument = GetFfmpegProbesizeArg();
+                if (!string.IsNullOrEmpty(ffmpegProbeSizeArgument))
+                {
+                    arg.Append(' ').Append(ffmpegProbeSizeArgument);
+                }
+
                 // Also seek the external subtitles stream.
                 var seekSubParam = GetFastSeekCommandLineParameter(state, options, segmentContainer);
                 if (!string.IsNullOrEmpty(seekSubParam))
@@ -1768,38 +1790,40 @@ namespace MediaBrowser.Controller.MediaEncoding
 
         public static string NormalizeTranscodingLevel(EncodingJobInfo state, string level)
         {
-            if (double.TryParse(level, CultureInfo.InvariantCulture, out double requestLevel))
+            if (!double.TryParse(level, CultureInfo.InvariantCulture, out double requestLevel))
             {
-                if (string.Equals(state.ActualOutputVideoCodec, "av1", StringComparison.OrdinalIgnoreCase))
+                return null;
+            }
+
+            if (string.Equals(state.ActualOutputVideoCodec, "av1", StringComparison.OrdinalIgnoreCase))
+            {
+                // Transcode to level 5.3 (15) and lower for maximum compatibility.
+                // https://en.wikipedia.org/wiki/AV1#Levels
+                if (requestLevel < 0 || requestLevel >= 15)
                 {
-                    // Transcode to level 5.3 (15) and lower for maximum compatibility.
-                    // https://en.wikipedia.org/wiki/AV1#Levels
-                    if (requestLevel < 0 || requestLevel >= 15)
-                    {
-                        return "15";
-                    }
+                    return "15";
                 }
-                else if (string.Equals(state.ActualOutputVideoCodec, "hevc", StringComparison.OrdinalIgnoreCase)
-                         || string.Equals(state.ActualOutputVideoCodec, "h265", StringComparison.OrdinalIgnoreCase))
+            }
+            else if (string.Equals(state.ActualOutputVideoCodec, "hevc", StringComparison.OrdinalIgnoreCase)
+                     || string.Equals(state.ActualOutputVideoCodec, "h265", StringComparison.OrdinalIgnoreCase))
+            {
+                // Transcode to level 5.0 and lower for maximum compatibility.
+                // Level 5.0 is suitable for up to 4k 30fps hevc encoding, otherwise let the encoder to handle it.
+                // https://en.wikipedia.org/wiki/High_Efficiency_Video_Coding_tiers_and_levels
+                // MaxLumaSampleRate = 3840*2160*30 = 248832000 < 267386880.
+                if (requestLevel < 0 || requestLevel >= 150)
                 {
-                    // Transcode to level 5.0 and lower for maximum compatibility.
-                    // Level 5.0 is suitable for up to 4k 30fps hevc encoding, otherwise let the encoder to handle it.
-                    // https://en.wikipedia.org/wiki/High_Efficiency_Video_Coding_tiers_and_levels
-                    // MaxLumaSampleRate = 3840*2160*30 = 248832000 < 267386880.
-                    if (requestLevel < 0 || requestLevel >= 150)
-                    {
-                        return "150";
-                    }
+                    return "150";
                 }
-                else if (string.Equals(state.ActualOutputVideoCodec, "h264", StringComparison.OrdinalIgnoreCase))
+            }
+            else if (string.Equals(state.ActualOutputVideoCodec, "h264", StringComparison.OrdinalIgnoreCase))
+            {
+                // Transcode to level 5.1 and lower for maximum compatibility.
+                // h264 4k 30fps requires at least level 5.1 otherwise it will break on safari fmp4.
+                // https://en.wikipedia.org/wiki/Advanced_Video_Coding#Levels
+                if (requestLevel < 0 || requestLevel >= 51)
                 {
-                    // Transcode to level 5.1 and lower for maximum compatibility.
-                    // h264 4k 30fps requires at least level 5.1 otherwise it will break on safari fmp4.
-                    // https://en.wikipedia.org/wiki/Advanced_Video_Coding#Levels
-                    if (requestLevel < 0 || requestLevel >= 51)
-                    {
-                        return "51";
-                    }
+                    return "51";
                 }
             }
 
@@ -2189,12 +2213,10 @@ namespace MediaBrowser.Controller.MediaEncoding
                 }
             }
 
-            var level = state.GetRequestedLevel(targetVideoCodec);
+            var level = NormalizeTranscodingLevel(state, state.GetRequestedLevel(targetVideoCodec));
 
             if (!string.IsNullOrEmpty(level))
             {
-                level = NormalizeTranscodingLevel(state, level);
-
                 // libx264, QSV, AMF can adjust the given level to match the output.
                 if (string.Equals(videoEncoder, "h264_qsv", StringComparison.OrdinalIgnoreCase)
                     || string.Equals(videoEncoder, "libx264", StringComparison.OrdinalIgnoreCase))
@@ -2378,6 +2400,13 @@ namespace MediaBrowser.Controller.MediaEncoding
                 var requestHasSDR = requestedRangeTypes.Contains(VideoRangeType.SDR.ToString(), StringComparison.OrdinalIgnoreCase);
                 var requestHasDOVI = requestedRangeTypes.Contains(VideoRangeType.DOVI.ToString(), StringComparison.OrdinalIgnoreCase);
 
+                // If SDR is the only supported range, we should not copy any of the HDR streams.
+                // All the following copy check assumes at least one HDR format is supported.
+                if (requestedRangeTypes.Length == 1 && requestHasSDR && videoStream.VideoRangeType != VideoRangeType.SDR)
+                {
+                    return false;
+                }
+
                 // If the client does not support DOVI and the video stream is DOVI without fallback, we should not copy it.
                 if (!requestHasDOVI && videoStream.VideoRangeType == VideoRangeType.DOVI)
                 {
@@ -5942,28 +5971,37 @@ namespace MediaBrowser.Controller.MediaEncoding
 
                 var isFullAfbcPipeline = isEncoderSupportAfbc && isDrmInDrmOut && !doOclTonemap;
                 var swapOutputWandH = doRkVppTranspose && swapWAndH;
-                var outFormat = doOclTonemap ? "p010" : (isMjpegEncoder ? "bgra" : "nv12"); // RGA only support full range in rgb fmts
+                var outFormat = doOclTonemap ? "p010" : "nv12";
                 var hwScaleFilter = GetHwScaleFilter("vpp", "rkrga", outFormat, swapOutputWandH, swpInW, swpInH, reqW, reqH, reqMaxW, reqMaxH);
-                var doScaling = GetHwScaleFilter("vpp", "rkrga", string.Empty, swapOutputWandH, swpInW, swpInH, reqW, reqH, reqMaxW, reqMaxH);
+                var doScaling = !string.IsNullOrEmpty(GetHwScaleFilter("vpp", "rkrga", string.Empty, swapOutputWandH, swpInW, swpInH, reqW, reqH, reqMaxW, reqMaxH));
 
                 if (!hasSubs
                      || doRkVppTranspose
                      || !isFullAfbcPipeline
-                     || !string.IsNullOrEmpty(doScaling))
+                     || doScaling)
                 {
+                    var isScaleRatioSupported = IsScaleRatioSupported(inW, inH, reqW, reqH, reqMaxW, reqMaxH, 8.0f);
+
                     // RGA3 hardware only support (1/8 ~ 8) scaling in each blit operation,
                     // but in Trickplay there's a case: (3840/320 == 12), enable 2pass for it
-                    if (!string.IsNullOrEmpty(doScaling)
-                        && !IsScaleRatioSupported(inW, inH, reqW, reqH, reqMaxW, reqMaxH, 8.0f))
+                    if (doScaling && !isScaleRatioSupported)
                     {
                         // Vendor provided BSP kernel has an RGA driver bug that causes the output to be corrupted for P010 format.
                         // Use NV15 instead of P010 to avoid the issue.
                         // SDR inputs are using BGRA formats already which is not affected.
-                        var intermediateFormat = string.Equals(outFormat, "p010", StringComparison.OrdinalIgnoreCase) ? "nv15" : outFormat;
+                        var intermediateFormat = doOclTonemap ? "nv15" : (isMjpegEncoder ? "bgra" : outFormat);
                         var hwScaleFilterFirstPass = $"scale_rkrga=w=iw/7.9:h=ih/7.9:format={intermediateFormat}:force_original_aspect_ratio=increase:force_divisible_by=4:afbc=1";
                         mainFilters.Add(hwScaleFilterFirstPass);
                     }
 
+                    // The RKMPP MJPEG encoder on some newer chip models no longer supports RGB input.
+                    // Use 2pass here to enable RGA output of full-range YUV in the 2nd pass.
+                    if (isMjpegEncoder && !doOclTonemap && ((doScaling && isScaleRatioSupported) || !doScaling))
+                    {
+                        var hwScaleFilterFirstPass = "vpp_rkrga=format=bgra:afbc=1";
+                        mainFilters.Add(hwScaleFilterFirstPass);
+                    }
+
                     if (!string.IsNullOrEmpty(hwScaleFilter) && doRkVppTranspose)
                     {
                         hwScaleFilter += $":transpose={transposeDir}";
@@ -6343,6 +6381,19 @@ namespace MediaBrowser.Controller.MediaEncoding
                     }
                 }
 
+                // Block unsupported H.264 Hi422P and Hi444PP profiles, which can be encoded with 4:2:0 pixel format
+                if (string.Equals(videoStream.Codec, "h264", StringComparison.OrdinalIgnoreCase)
+                    && ((videoStream.Profile?.Contains("4:2:2", StringComparison.OrdinalIgnoreCase) ?? false)
+                        || (videoStream.Profile?.Contains("4:4:4", StringComparison.OrdinalIgnoreCase) ?? false)))
+                {
+                    // VideoToolbox on Apple Silicon has H.264 Hi444PP and theoretically also has Hi422P
+                    if (!(hardwareAccelerationType == HardwareAccelerationType.videotoolbox
+                          && RuntimeInformation.OSArchitecture.Equals(Architecture.Arm64)))
+                    {
+                        return null;
+                    }
+                }
+
                 var decoder = hardwareAccelerationType switch
                 {
                     HardwareAccelerationType.vaapi => GetVaapiVidDecoder(state, options, videoStream, bitDepth),
@@ -7023,8 +7074,8 @@ namespace MediaBrowser.Controller.MediaEncoding
 
                 if (string.Equals(videoStream.Codec, "av1", StringComparison.OrdinalIgnoreCase))
                 {
-                    var accelType = GetHwaccelType(state, options, "av1", bitDepth, hwSurface);
-                    return accelType + ((!string.IsNullOrEmpty(accelType) && isAfbcSupported) ? " -afbc rga" : string.Empty);
+                    // there's an issue about AV1 AFBC on RK3588, disable it for now until it's fixed upstream
+                    return GetHwaccelType(state, options, "av1", bitDepth, hwSurface);
                 }
             }
 
@@ -7087,9 +7138,8 @@ namespace MediaBrowser.Controller.MediaEncoding
             }
         }
 
-        public string GetInputModifier(EncodingJobInfo state, EncodingOptions encodingOptions, string segmentContainer)
+        private string GetFfmpegAnalyzeDurationArg(EncodingJobInfo state)
         {
-            var inputModifier = string.Empty;
             var analyzeDurationArgument = string.Empty;
 
             // Apply -analyzeduration as per the environment variable,
@@ -7105,6 +7155,26 @@ namespace MediaBrowser.Controller.MediaEncoding
                 analyzeDurationArgument = "-analyzeduration " + ffmpegAnalyzeDuration;
             }
 
+            return analyzeDurationArgument;
+        }
+
+        private string GetFfmpegProbesizeArg()
+        {
+            var ffmpegProbeSize = _config.GetFFmpegProbeSize();
+
+            if (!string.IsNullOrEmpty(ffmpegProbeSize))
+            {
+                return $"-probesize {ffmpegProbeSize}";
+            }
+
+            return string.Empty;
+        }
+
+        public string GetInputModifier(EncodingJobInfo state, EncodingOptions encodingOptions, string segmentContainer)
+        {
+            var inputModifier = string.Empty;
+            var analyzeDurationArgument = GetFfmpegAnalyzeDurationArg(state);
+
             if (!string.IsNullOrEmpty(analyzeDurationArgument))
             {
                 inputModifier += " " + analyzeDurationArgument;
@@ -7113,11 +7183,11 @@ namespace MediaBrowser.Controller.MediaEncoding
             inputModifier = inputModifier.Trim();
 
             // Apply -probesize if configured
-            var ffmpegProbeSize = _config.GetFFmpegProbeSize();
+            var ffmpegProbeSizeArgument = GetFfmpegProbesizeArg();
 
-            if (!string.IsNullOrEmpty(ffmpegProbeSize))
+            if (!string.IsNullOrEmpty(ffmpegProbeSizeArgument))
             {
-                inputModifier += $" -probesize {ffmpegProbeSize}";
+                inputModifier += " " + ffmpegProbeSizeArgument;
             }
 
             var userAgentParam = GetUserAgentParam(state);
@@ -7157,8 +7227,10 @@ namespace MediaBrowser.Controller.MediaEncoding
                 inputModifier += GetVideoSyncOption(state.InputVideoSync, _mediaEncoder.EncoderVersion);
             }
 
+            int readrate = 0;
             if (state.ReadInputAtNativeFramerate && state.InputProtocol != MediaProtocol.Rtsp)
             {
+                readrate = 1;
                 inputModifier += " -re";
             }
             else if (encodingOptions.EnableSegmentDeletion
@@ -7169,7 +7241,15 @@ namespace MediaBrowser.Controller.MediaEncoding
             {
                 // Set an input read rate limit 10x for using SegmentDeletion with stream-copy
                 // to prevent ffmpeg from exiting prematurely (due to fast drive)
-                inputModifier += " -readrate 10";
+                readrate = 10;
+                inputModifier += $" -readrate {readrate}";
+            }
+
+            // Set a larger catchup value to revert to the old behavior,
+            // otherwise, remuxing might stall due to this new option
+            if (readrate > 0 && _mediaEncoder.EncoderVersion >= _minFFmpegReadrateCatchupOption)
+            {
+                inputModifier += $" -readrate_catchup {readrate * 100}";
             }
 
             var flags = new List<string>();

MediaBrowser.Controller/Persistence/IItemRepository.cs

@@ -35,6 +35,14 @@ public interface IItemRepository
 
     void SaveImages(BaseItem item);
 
+    /// <summary>
+    /// Reattaches the user data to the item.
+    /// </summary>
+    /// <param name="item">The item.</param>
+    /// <param name="cancellationToken">The cancellation token.</param>
+    /// <returns>A task that represents the asynchronous reattachment operation.</returns>
+    Task ReattachUserDataAsync(BaseItem item, CancellationToken cancellationToken);
+
     /// <summary>
     /// Retrieves the item.
     /// </summary>

MediaBrowser.Controller/Session/ISessionManager.cs

@@ -350,5 +350,12 @@ namespace MediaBrowser.Controller.Session
         /// <param name="sessionIdOrPlaySessionId">The session id or playsession id.</param>
         /// <returns>Task.</returns>
         Task CloseLiveStreamIfNeededAsync(string liveStreamId, string sessionIdOrPlaySessionId);
+
+        /// <summary>
+        /// Gets the dto for session info.
+        /// </summary>
+        /// <param name="sessionInfo">The session info.</param>
+        /// <returns><see cref="SessionInfoDto"/> of the session.</returns>
+        SessionInfoDto ToSessionInfoDto(SessionInfo sessionInfo);
     }
 }

MediaBrowser.MediaEncoding/BdInfo/BdInfoDirectoryInfo.cs

@@ -1,3 +1,4 @@
+using System;
 using System.IO;
 using System.Linq;
 using BDInfo.IO;
@@ -58,6 +59,8 @@ public class BdInfoDirectoryInfo : IDirectoryInfo
         }
     }
 
+    private static bool IsHidden(ReadOnlySpan<char> name) => name.StartsWith('.');
+
     /// <summary>
     /// Gets the directories.
     /// </summary>
@@ -65,6 +68,7 @@ public class BdInfoDirectoryInfo : IDirectoryInfo
     public IDirectoryInfo[] GetDirectories()
     {
         return _fileSystem.GetDirectories(_impl.FullName)
+            .Where(d => !IsHidden(d.Name))
             .Select(x => new BdInfoDirectoryInfo(_fileSystem, x))
             .ToArray();
     }
@@ -76,6 +80,7 @@ public class BdInfoDirectoryInfo : IDirectoryInfo
     public IFileInfo[] GetFiles()
     {
         return _fileSystem.GetFiles(_impl.FullName)
+            .Where(d => !IsHidden(d.Name))
             .Select(x => new BdInfoFileInfo(x))
             .ToArray();
     }
@@ -88,6 +93,7 @@ public class BdInfoDirectoryInfo : IDirectoryInfo
     public IFileInfo[] GetFiles(string searchPattern)
     {
         return _fileSystem.GetFiles(_impl.FullName, new[] { searchPattern }, false, false)
+            .Where(d => !IsHidden(d.Name))
             .Select(x => new BdInfoFileInfo(x))
             .ToArray();
     }
@@ -105,6 +111,7 @@ public class BdInfoDirectoryInfo : IDirectoryInfo
                 new[] { searchPattern },
                 false,
                 searchOption == SearchOption.AllDirectories)
+            .Where(d => !IsHidden(d.Name))
             .Select(x => new BdInfoFileInfo(x))
             .ToArray();
     }