From 4af66c4e1ad0f8c0105dc3a48c2bfaf29cd11750 Mon Sep 17 00:00:00 2001
From: Erik W <22211983+Lampan-git@users.noreply.github.com>
Date: Tue, 26 May 2026 21:02:43 +0200
Subject: Improve OriginalLanguage normalization and inheritance (#16829)

Improve OriginalLanguage normalization and inheritance
---
 MediaBrowser.Controller/Entities/BaseItem.cs | 19 +++++++++++++++++--
 1 file changed, 17 insertions(+), 2 deletions(-)

(limited to 'MediaBrowser.Controller/Entities/BaseItem.cs')

diff --git a/MediaBrowser.Controller/Entities/BaseItem.cs b/MediaBrowser.Controller/Entities/BaseItem.cs
index 4cdcaabbb1..e24b60f69f 100644
--- a/MediaBrowser.Controller/Entities/BaseItem.cs
+++ b/MediaBrowser.Controller/Entities/BaseItem.cs
@@ -94,6 +94,8 @@ namespace MediaBrowser.Controller.Entities
 
         private string _name;
 
+        private string _originalLanguage;
+
         public const char SlugChar = '-';
 
         protected BaseItem()
@@ -217,7 +219,11 @@ namespace MediaBrowser.Controller.Entities
         public string OriginalTitle { get; set; }
 
         [JsonIgnore]
-        public string OriginalLanguage { get; set; }
+        public string OriginalLanguage
+        {
+            get => _originalLanguage;
+            set => _originalLanguage = LocalizationManager?.FindLanguageInfo(value)?.TwoLetterISOLanguageName ?? value;
+        }
 
         /// <summary>
         /// Gets or sets the id.
@@ -1564,7 +1570,7 @@ namespace MediaBrowser.Controller.Entities
         }
 
         /// <summary>
-        /// Gets the preferred metadata language.
+        /// Gets the preferred metadata country code.
         /// </summary>
         /// <returns>System.String.</returns>
         public string GetPreferredMetadataCountryCode()
@@ -1598,6 +1604,15 @@ namespace MediaBrowser.Controller.Entities
             return lang;
         }
 
+        /// <summary>
+        /// Gets the original language of the item, inheriting from parent items if necessary.
+        /// </summary>
+        /// <returns>System.String.</returns>
+        public virtual string GetInheritedOriginalLanguage()
+        {
+            return OriginalLanguage;
+        }
+
         public virtual bool IsSaveLocalMetadataEnabled()
         {
             if (SourceType == SourceType.Channel)
-- 
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