From f62f3cf9b011e15e81d502f35fa9c7668a93aaa5 Mon Sep 17 00:00:00 2001
From: enter-a-random-username
 <112093608+enter-a-random-username@users.noreply.github.com>
Date: Tue, 15 Sep 2026 11:15:56 -0400
Subject: Backport pull request #17924 from jellyfin/release-12.z

Use thumbs for image tmdb image preview

Original-merge: d418fd4cb4b607a99c7dd45dd960d755cb876457

Merged-by: crobibero <cody@robibe.ro>

Backported-by: Cody Robibero <cody@robibe.ro>
---
 MediaBrowser.Providers/Plugins/Tmdb/TmdbClientManager.cs | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/MediaBrowser.Providers/Plugins/Tmdb/TmdbClientManager.cs b/MediaBrowser.Providers/Plugins/Tmdb/TmdbClientManager.cs
index 6b1b54ce02..f6fc90380d 100644
--- a/MediaBrowser.Providers/Plugins/Tmdb/TmdbClientManager.cs
+++ b/MediaBrowser.Providers/Plugins/Tmdb/TmdbClientManager.cs
@@ -29,6 +29,14 @@ namespace MediaBrowser.Providers.Plugins.Tmdb
         // differ in weight by orders of magnitude.
         private const int CacheSizeLimit = 100_000;
 
+        private static readonly Dictionary<string, string> ThumbnailSizes = new Dictionary<string, string>
+        {
+            { "Primary", "w500" },
+            { "Backdrop", "w780" },
+            { "Thumb", "w780" },
+            { "Logo", "w500" },
+        };
+
         private readonly MemoryCache _memoryCache;
         private readonly TMDbClient _tmDbClient;
 
@@ -678,6 +686,7 @@ namespace MediaBrowser.Providers.Plugins.Tmdb
                 yield return new RemoteImageInfo
                 {
                     Url = GetUrl(size, image.FilePath),
+                    ThumbnailUrl = GetUrl(ThumbnailSizes.GetValueOrDefault(type.ToString(), string.Empty), image.FilePath),
                     CommunityRating = image.VoteAverage,
                     VoteCount = image.VoteCount,
                     Width = scaleImage ? null : image.Width,
-- 
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