Add OriginalLanguage as option to PreferredAudioLanguage (#12579)

* Add OriginalLanguage as option to PreferredAudioLanguage

* Support for multiple original languages

* Add original audio stream indicator

* Fetch OriginalLanguage from TMDB

* Adapt to EFCore refactor

* Fix PlayDefaultAudioTrack OriginalLanguage behavior

* Fix better PlayDefaultAudioTrack OriginalLanguage behavior

* Add comment to ItemFields

* Improved PlayDefaultAudioTrack behavior

* Add migration for original language

* Use sting.Equals for string comparisons

* Always set dto OriginalLanguage

* Remove OriginalLanguage from ItemFields

---------

Co-authored-by: Lampan-git <lampan-git@users.noreply.github.com>

src/Jellyfin.Database/Jellyfin.Database.Implementations/Entities/BaseItemEntity.cs

@@ -96,6 +96,8 @@ public class BaseItemEntity
 
     public string? OriginalTitle { get; set; }
 
+    public string? OriginalLanguage { get; set; }
+
     public Guid? PrimaryVersionId { get; set; }
 
     public DateTime? DateLastMediaAdded { get; set; }

src/Jellyfin.Database/Jellyfin.Database.Implementations/Entities/Libraries/ItemMetadata.cs

@@ -62,6 +62,16 @@ namespace Jellyfin.Database.Implementations.Entities.Libraries
         [StringLength(1024)]
         public string? OriginalTitle { get; set; }
 
+        /// <summary>
+        /// Gets or sets the original language.
+        /// </summary>
+        /// <remarks>
+        /// Max length = 1024.
+        /// </remarks>
+        [MaxLength(1024)]
+        [StringLength(1024)]
+        public string? OriginalLanguage { get; set; }
+
         /// <summary>
         /// Gets or sets the sort title.
         /// </summary>

src/Jellyfin.Database/Jellyfin.Database.Implementations/Entities/MediaStreamInfo.cs

@@ -40,6 +40,8 @@ public class MediaStreamInfo
 
     public bool IsExternal { get; set; }
 
+    public bool IsOriginal { get; set; }
+
     public int? Height { get; set; }
 
     public int? Width { get; set; }

src/Jellyfin.Database/Jellyfin.Database.Providers.Sqlite/Migrations/20260504180809_AddOriginalLanguage.cs

@@ -0,0 +1,47 @@
+using System;
+using Microsoft.EntityFrameworkCore.Migrations;
+
+#nullable disable
+
+namespace Jellyfin.Database.Providers.Sqlite.Migrations
+{
+    /// <inheritdoc />
+    public partial class AddOriginalLanguage : Migration
+    {
+        /// <inheritdoc />
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.AddColumn<bool>(
+                name: "IsOriginal",
+                table: "MediaStreamInfos",
+                type: "INTEGER",
+                nullable: false,
+                defaultValue: false);
+
+            migrationBuilder.AddColumn<string>(
+                name: "OriginalLanguage",
+                table: "BaseItems",
+                type: "TEXT",
+                nullable: true);
+
+            migrationBuilder.UpdateData(
+                table: "BaseItems",
+                keyColumn: "Id",
+                keyValue: new Guid("00000000-0000-0000-0000-000000000001"),
+                column: "OriginalLanguage",
+                value: null);
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropColumn(
+                name: "IsOriginal",
+                table: "MediaStreamInfos");
+
+            migrationBuilder.DropColumn(
+                name: "OriginalLanguage",
+                table: "BaseItems");
+        }
+    }
+}

src/Jellyfin.Database/Jellyfin.Database.Providers.Sqlite/Migrations/JellyfinDbModelSnapshot.cs

@@ -264,6 +264,9 @@ namespace Jellyfin.Server.Implementations.Migrations
                     b.Property<string>("OfficialRating")
                         .HasColumnType("TEXT");
 
+                    b.Property<string>("OriginalLanguage")
+                        .HasColumnType("TEXT");
+
                     b.Property<string>("OriginalTitle")
                         .HasColumnType("TEXT");
 
@@ -955,6 +958,9 @@ namespace Jellyfin.Server.Implementations.Migrations
                     b.Property<bool?>("IsInterlaced")
                         .HasColumnType("INTEGER");
 
+                    b.Property<bool>("IsOriginal")
+                        .HasColumnType("INTEGER");
+
                     b.Property<string>("KeyFrames")
                         .HasColumnType("TEXT");