feat: add Trailer Pre-Roll and Feature Pre-Roll bumpers

Adds two optional IIntroProvider bumper slots, mirroring CherryFloors'
cinema mode plugin: a "Trailer Pre-Roll" played before the trailer block
and a "Feature Pre-Roll" played right before the movie/episode. Each is
configured by picking an existing Jellyfin Movie library, from which a
random Movie is injected as the bumper.

Bump version to 1.0.0.5.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Jellyfin.Plugin.CinemaTrailers4Jellyfins/Configuration/PluginConfiguration.cs

@@ -68,5 +68,15 @@ namespace Jellyfin.Plugin.CinemaTrailers4Jellyfins.Configuration
 
         /// <summary>Also inject trailers before TV episodes, but only before the first episode a user watches each day.</summary>
         public bool TrailersForEpisodes { get; set; } = false;
+
+        // ── Pre-Roll Bumpers ─────────────────────────────────────────────────
+
+        /// <summary>Jellyfin movie library (VirtualFolder ItemId) to pick a random "Trailer Pre-Roll"
+        /// bumper from, played before the trailer block. Empty = disabled.</summary>
+        public string TrailerPreRollLibraryId { get; set; } = string.Empty;
+
+        /// <summary>Jellyfin movie library (VirtualFolder ItemId) to pick a random "Feature Pre-Roll"
+        /// bumper from, played after the trailer block, right before the feature. Empty = disabled.</summary>
+        public string FeaturePreRollLibraryId { get; set; } = string.Empty;
     }
 }

Jellyfin.Plugin.CinemaTrailers4Jellyfins/Configuration/config.html

@@ -341,6 +341,38 @@
                         </div>
                     </fieldset>
 
+                    <!-- Pre-Roll Bumpers -->
+                    <fieldset class="verticalSection verticalSection-extrabottompadding">
+                        <legend><h3 class="sectionTitle">Pre-Roll Bumpers</h3></legend>
+                        <p class="fieldDescription">
+                            Optional: pick existing Jellyfin Movie libraries to pull random bumper
+                            videos from, bookending the trailer block above. Each is independent —
+                            leave either set to "None" to disable it.
+                        </p>
+
+                        <div class="selectContainer">
+                            <label class="selectLabel" for="trailer-preroll-library">Trailer Pre-Roll library</label>
+                            <select is="emby-select" id="trailer-preroll-library" class="emby-select-withcolor emby-select">
+                                <option value="">— None (disabled) —</option>
+                            </select>
+                            <div class="fieldDescription">
+                                A Movie library to pick a random "Now Playing" style bumper from,
+                                played before the trailer block.
+                            </div>
+                        </div>
+
+                        <div class="selectContainer">
+                            <label class="selectLabel" for="feature-preroll-library">Feature Pre-Roll library</label>
+                            <select is="emby-select" id="feature-preroll-library" class="emby-select-withcolor emby-select">
+                                <option value="">— None (disabled) —</option>
+                            </select>
+                            <div class="fieldDescription">
+                                A Movie library to pick a random "Feature Presentation" style bumper
+                                from, played right before the movie/episode (after trailers).
+                            </div>
+                        </div>
+                    </fieldset>
+
                     <!-- Advanced -->
                     <fieldset class="verticalSection verticalSection-extrabottompadding">
                         <legend><h3 class="sectionTitle">Advanced</h3></legend>
@@ -375,7 +407,24 @@
 
             $('.cinemaTrailers4JellyfinsConfigPage').on('pageshow', function () {
                 Dashboard.showLoadingMsg();
-                ApiClient.getPluginConfiguration(pluginId).then(function (config) {
+                Promise.all([
+                    ApiClient.getPluginConfiguration(pluginId),
+                    ApiClient.getJSON(ApiClient.getUrl('Library/VirtualFolders'))
+                ]).then(function (results) {
+                    var config = results[0];
+                    var movieFolders = results[1].filter(function (f) { return f.CollectionType === 'movies'; });
+                    [['trailer-preroll-library', config.TrailerPreRollLibraryId],
+                     ['feature-preroll-library', config.FeaturePreRollLibraryId]]
+                        .forEach(function (entry) {
+                            var select = document.getElementById(entry[0]);
+                            movieFolders.forEach(function (f) {
+                                var opt = document.createElement('option');
+                                opt.value = f.ItemId;
+                                opt.text = f.Name;
+                                select.appendChild(opt);
+                            });
+                            select.value = entry[1] || '';
+                        });
                     document.getElementById('tmdb-api-key').value           = config.TmdbApiKey || '';
                     document.getElementById('source-now-playing').checked   = config.SourceNowPlaying !== false;
                     document.getElementById('source-upcoming').checked      = config.SourceUpcoming !== false;
@@ -442,6 +491,8 @@
                     config.FilterByRating        = document.getElementById('filter-rating').checked;
                     config.AvoidRepeats          = document.getElementById('avoid-repeats').checked;
                     config.TrailersForEpisodes   = document.getElementById('trailers-for-episodes').checked;
+                    config.TrailerPreRollLibraryId = document.getElementById('trailer-preroll-library').value;
+                    config.FeaturePreRollLibraryId = document.getElementById('feature-preroll-library').value;
                     ApiClient.updatePluginConfiguration(pluginId, config)
                         .then(Dashboard.processPluginConfigurationUpdateResult);
                 });

Jellyfin.Plugin.CinemaTrailers4Jellyfins/Jellyfin.Plugin.CinemaTrailers4Jellyfins.csproj

@@ -3,8 +3,8 @@
   <PropertyGroup>
     <TargetFramework>net9.0</TargetFramework>
     <RootNamespace>Jellyfin.Plugin.CinemaTrailers4Jellyfins</RootNamespace>
-    <AssemblyVersion>1.0.0.4</AssemblyVersion>
-    <FileVersion>1.0.0.4</FileVersion>
+    <AssemblyVersion>1.0.0.5</AssemblyVersion>
+    <FileVersion>1.0.0.5</FileVersion>
     <Nullable>enable</Nullable>
     <GenerateDocumentationFile>false</GenerateDocumentationFile>
     <TreatWarningsAsErrors>false</TreatWarningsAsErrors>

Jellyfin.Plugin.CinemaTrailers4Jellyfins/Services/TrailerIntroProvider.cs

@@ -41,7 +41,14 @@ namespace Jellyfin.Plugin.CinemaTrailers4Jellyfins.Services
         public Task<IEnumerable<IntroInfo>> GetIntros(BaseItem item, User user)
         {
             var config = Plugin.Instance?.Configuration;
-            if (config == null || config.TrailersPerMovie <= 0)
+            if (config == null)
+                return Task.FromResult(Enumerable.Empty<IntroInfo>());
+
+            var trailersEnabled = config.TrailersPerMovie > 0;
+            var preRollEnabled = !string.IsNullOrEmpty(config.TrailerPreRollLibraryId);
+            var featurePreRollEnabled = !string.IsNullOrEmpty(config.FeaturePreRollLibraryId);
+
+            if (!trailersEnabled && !preRollEnabled && !featurePreRollEnabled)
                 return Task.FromResult(Enumerable.Empty<IntroInfo>());
 
             // The item used for genre/rating filtering. For episodes this is the
@@ -73,14 +80,24 @@ namespace Jellyfin.Plugin.CinemaTrailers4Jellyfins.Services
 
             var outputFolder = config.DownloadFolder?.TrimEnd(
                 Path.DirectorySeparatorChar, Path.AltDirectorySeparatorChar);
-            if (string.IsNullOrEmpty(outputFolder))
-                return Task.FromResult(Enumerable.Empty<IntroInfo>());
 
             // Break recursion: don't inject intros before items from our own output folder
             // (covers both the fake-movie files and their trailer extras).
-            if (item.Path?.StartsWith(outputFolder, StringComparison.OrdinalIgnoreCase) == true)
+            if (!string.IsNullOrEmpty(outputFolder)
+                && item.Path?.StartsWith(outputFolder, StringComparison.OrdinalIgnoreCase) == true)
                 return Task.FromResult(Enumerable.Empty<IntroInfo>());
 
+            var intros = new List<IntroInfo>();
+
+            if (preRollEnabled)
+            {
+                var preRoll = GetRandomLibraryMovieIntro(config.TrailerPreRollLibraryId, item.Id);
+                if (preRoll != null)
+                    intros.Add(preRoll);
+            }
+
+            if (trailersEnabled && !string.IsNullOrEmpty(outputFolder))
+            {
                 // Server-scoped query so hidden libraries don't block trailer discovery.
                 var pairs = _libraryManager
                     .GetItemList(new InternalItemsQuery
@@ -104,9 +121,9 @@ namespace Jellyfin.Plugin.CinemaTrailers4Jellyfins.Services
                         + "Ensure the output folder is added as a Jellyfin Movies library and scanned.",
                         isEpisode ? "TV show" : "movie",
                         outputFolder);
-                return Task.FromResult(Enumerable.Empty<IntroInfo>());
                 }
-
+                else
+                {
                     // Apply enabled filters. If nothing survives, fall back to the full pool.
                     var filtered = ApplyFilters(pairs, feature, config);
                     var pool = filtered.Count > 0 ? filtered : pairs;
@@ -122,8 +139,45 @@ namespace Jellyfin.Plugin.CinemaTrailers4Jellyfins.Services
                     if (config.AvoidRepeats)
                         MarkSeen(user.Id, selected.Select(p => p.Trailer.Id));
 
-            var intros = selected.Select(p => new IntroInfo { ItemId = p.Trailer.Id, Path = p.Trailer.Path });
-            return Task.FromResult<IEnumerable<IntroInfo>>(intros.ToList());
+                    intros.AddRange(selected.Select(p => new IntroInfo { ItemId = p.Trailer.Id, Path = p.Trailer.Path }));
+                }
+            }
+
+            if (featurePreRollEnabled)
+            {
+                var featureRoll = GetRandomLibraryMovieIntro(config.FeaturePreRollLibraryId, item.Id);
+                if (featureRoll != null)
+                    intros.Add(featureRoll);
+            }
+
+            return Task.FromResult<IEnumerable<IntroInfo>>(intros);
+        }
+
+        /// <summary>
+        /// Picks a random Movie from the given Jellyfin library (VirtualFolder ItemId) to use as a
+        /// pre-roll/post-roll bumper, excluding the item currently being played.
+        /// </summary>
+        private IntroInfo? GetRandomLibraryMovieIntro(string libraryId, Guid excludeId)
+        {
+            if (!Guid.TryParse(libraryId, out var parsedId))
+                return null;
+
+            var movies = _libraryManager
+                .GetItemList(new InternalItemsQuery
+                {
+                    IncludeItemTypes = new[] { BaseItemKind.Movie },
+                    TopParentIds = new[] { parsedId },
+                    Recursive = true,
+                })
+                .OfType<Movie>()
+                .Where(m => m.Id != excludeId)
+                .ToList();
+
+            if (movies.Count == 0)
+                return null;
+
+            var movie = movies[_rng.Next(movies.Count)];
+            return new IntroInfo { ItemId = movie.Id, Path = movie.Path };
         }
 
         private static List<(Movie Movie, BaseItem Trailer)> ApplyFilters(

README.md

@@ -1,30 +1,70 @@
 # CinemaTrailers4Jellyfins
 
-A Jellyfin plugin that automatically downloads movie trailers from TMDB/YouTube and packages
-each one as a self-contained "fake movie" folder, ready to be picked up by a Cinema Mode /
-trailer pre-roll plugin.
+A Jellyfin plugin that automatically downloads movie and TV show trailers from TMDB/YouTube and
+packages each one as a self-contained "fake movie" folder, ready to be picked up by a Cinema
+Mode / trailer pre-roll plugin. It can also act as a Cinema Mode pre-roll source itself, via
+Jellyfin's `IIntroProvider` interface (compatible with Wholphin and similar clients).
 
 ## How it works
 
-1. A daily scheduled task fetches candidate movies from TMDB (Now Playing, Upcoming, Popular,
-   Top Rated — configurable), optionally skipping movies already in your library.
+### Downloading trailers
+
+1. A daily scheduled task fetches candidate movies and/or TV shows from TMDB (Now Playing,
+   Upcoming, Popular, Top Rated for movies; Airing Today, On The Air, Popular, Top Rated for TV
+   shows — all configurable), optionally skipping titles already in your library.
 2. For each candidate, it fetches the official trailer(s) from TMDB, which point to YouTube.
 3. It downloads the trailer video and builds a folder for it:
    ```
    {OutputFolder}/
-     {Movie Title} ({Year})/
-       {Movie Title} ({Year}).mp4          ← placeholder "fake movie" (copy of a master file)
-       {Movie Title} ({Year})-trailer.mp4  ← the actual downloaded trailer
-       {Movie Title} ({Year}).nfo          ← minimal NFO (title, year, locked metadata)
+     {Title} ({Year})/
+       {Title} ({Year}).mp4          ← placeholder "fake movie" (copy of a master file)
+       {Title} ({Year})-trailer.mp4  ← the actual downloaded trailer
+       {Title} ({Year}).nfo          ← minimal NFO (title, year, genres, rating, locked metadata)
    ```
+   TV show trailers are tagged (`<tag>ct4j-tvshow</tag>`) in their NFO so they can be told apart
+   from movie trailers.
 4. Jellyfin scans the placeholder file as a normal movie (its metadata locked via the NFO so
-   it never queries TMDB for it) and picks up the adjacent `-trailer.mp4` as that movie's
+   it never queries TMDB for it) and picks up the adjacent `-trailer.mp4` as that item's
    local trailer — which a Cinema Mode / trailer pre-roll plugin can then play.
 
 The placeholder "fake movie" is a few seconds of black video with silent audio — just enough
 for Jellyfin to treat the file as a valid video. It's generated once via `ffmpeg` and reused
 by copying, not regenerated for every trailer.
 
+Movie and TV show downloads each have their own TMDB sources and their own "max trailers per
+run" setting — set either to 0 to skip that category entirely.
+
+### Playing trailers (Cinema Mode integration)
+
+The plugin also registers as an `IIntroProvider`, so Jellyfin clients with cinema mode support
+(and clients like Wholphin) can play the downloaded trailers as pre-rolls directly, without a
+separate trailer plugin:
+
+- Before a **movie**, it injects movie trailers from the output folder.
+- Before a **TV episode** (if enabled), it injects TV show trailers — but only before the first
+  episode a user watches each day. If you binge several episodes in one sitting, only the first
+  one gets trailers; the next day it resets.
+- Movie and TV trailers are kept in separate pools, so movies only ever get movie trailers and
+  episodes only ever get TV show trailers.
+- Optional filters can restrict trailers to those matching the genre and/or age rating of the
+  movie/show you're about to watch (falling back to the full pool if nothing matches), and an
+  "avoid repeats" mode cycles through all trailers before repeating any.
+
+The output folder still needs to be added as a Jellyfin **Movies** library and scanned for any
+of this to work, since that's how Jellyfin discovers the trailer files in the first place.
+
+#### Pre-roll bumpers
+
+Optionally, you can also bookend the trailer block with bumper videos picked at random from
+your own existing Jellyfin **Movies** libraries:
+
+- **Trailer Pre-Roll**: plays *before* the trailer block (e.g. a "Now Playing" bumper).
+- **Feature Pre-Roll**: plays *after* the trailer block, right before the movie/episode itself
+  (e.g. a "Feature Presentation" bumper).
+
+Each is independent, disabled by default, and picks a plain random `Movie` item from the
+configured library every time (no genre/rating filtering or repeat-avoidance).
+
 ## Requirements
 
 - Jellyfin 10.11+
@@ -58,15 +98,24 @@ Go to **Admin → Plugins → CinemaTrailers4Jellyfins**.
 |---|---|
 | **TMDB API Key** | Your TMDB Read Access Token (JWT) or v3 API key |
 | **Trailer Languages** | Restrict downloads to specific trailer languages |
-| **Trailer Sources** | Which TMDB lists to pull candidates from (Now Playing, Upcoming, Popular, Top Rated) |
-| **Date Range** | Only consider movies released within the last N months |
+| **Movie Trailer Sources** | Which TMDB lists to pull movie candidates from (Now Playing, Upcoming, Popular, Top Rated) |
+| **TV Show Trailer Sources** | Which TMDB lists to pull TV show candidates from (Airing Today, On The Air, Popular, Top Rated) |
+| **Date Range** | Only consider titles released (or first-aired) within the last N months |
 | **Output Folder** | Where the fake-movie folders are created |
-| **Max trailers per run** | How many trailers to download per task run |
+| **Max movie trailers per run** | How many movie trailers to download per task run. 0 = don't download movie trailers |
+| **Max TV show trailers per run** | How many TV show trailers to download per task run. 0 = don't download TV show trailers |
 | **Pages per source** | How many TMDB pages to fetch per source |
 | **Video quality** | 720p / 480p (built-in) or 1080p (requires yt-dlp) |
-| **Skip movies already in my Jellyfin library** | Don't download trailers for movies you already own |
+| **Skip movies/shows already in my Jellyfin library** | Don't download trailers for movies/shows you already own |
 | **Skip trailers already downloaded** | Don't re-download a trailer if its folder already exists |
 | **Max trailers to keep** | Oldest trailer folders are deleted first once this cap is exceeded |
+| **Trailers per movie** | How many trailers to play before each item via Cinema Mode (`IIntroProvider`). 0 = disabled |
+| **Match genre to the movie being played** | Only pick trailers whose genre overlaps with what you're about to watch |
+| **Limit to same age rating or lower** | Never play a trailer rated higher than what you're about to watch |
+| **Avoid repeating trailers** | Cycle through all available trailers before repeating any |
+| **Also play trailers before TV episodes** | Plays before only the first episode a user watches each day |
+| **Trailer Pre-Roll library** | Movie library to pick a random "Now Playing" style bumper from, played before the trailer block. None = disabled |
+| **Feature Pre-Roll library** | Movie library to pick a random "Feature Presentation" style bumper from, played after the trailer block. None = disabled |
 | **yt-dlp path** | Optional path to `yt-dlp` for 1080p+ downloads |
 
 ## Running the task
@@ -75,7 +124,8 @@ After configuring, go to **Admin → Scheduled Tasks → CinemaTrailers4Jellyfin
 to do an immediate download pass. The task then runs automatically once per day.
 
 After the task completes, add the output folder as a Jellyfin **Movies** library (and run a
-library scan) so your Cinema Mode / trailer pre-roll plugin can use the trailers.
+library scan) so your Cinema Mode / trailer pre-roll plugin (or this plugin's own
+`IIntroProvider`) can use the trailers.
 
 ## Building from source
 

build.yaml

@@ -1,5 +1,5 @@
 ---
-version: 1.0.0.4
+version: 1.0.0.5
 name: CinemaTrailers4Jellyfins
 guid: b581493e-1046-40ed-b6dc-cb8027624984
 description: >
@@ -12,15 +12,10 @@ category: General
 owner: 514mart
 targetAbi: 10.11.0.0
 changelog:
-  - Add TV show trailer downloads — separate TMDB sources (Airing Today, On The Air,
-    Popular, Top Rated) and a "Max TV show trailers per run" cap independent from
-    movies; set either cap to 0 to skip that category entirely
-  - Add trailers before TV episodes via IIntroProvider — only the first episode a
-    user watches each day gets trailers, picked using the show's genre/rating for
-    filtering
-  - Movie and TV trailers are now kept separate — movies only ever get movie
-    trailers and episodes only ever get TV show trailers, via a tag written to each
-    trailer's NFO at download time
+  - Add Trailer Pre-Roll and Feature Pre-Roll bumpers via IIntroProvider — pick
+    existing Jellyfin Movie libraries in settings and a random movie from each is
+    played before the trailer block ("Now Playing") and/or right before the
+    feature ("Feature Presentation"); both are independent and disabled by default
 
 dotnetProjects:
   - name: Jellyfin.Plugin.CinemaTrailers4Jellyfins