pass chapter title to filler expression

CHANGELOG.md

@@ -29,6 +29,9 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
   - `Normalize Video` (default: true) - normalizes video streams, or stream copies when disabled
   - `Normalize Colors` (default: true) - normalizes color parameters when enabled
   - Disabling any of these options may have a significant performance benefit *at the expense of stream stability*
+- Add `title` to filler expression
+  - This can be used to include or exclude chapters with specific (case-insensitive) titles
+  - E.g. `title == 'here'`, `title != 'not here'`, `title like '%here%'`
 
 ### Changed
 - Disable automatic artwork database cleanup

ErsatzTV.Core.Tests/Scheduling/FillerExpressionTests.cs

@@ -75,4 +75,106 @@ public class FillerExpressionTests
         result[1].EndTime.ShouldBe(TimeSpan.FromMinutes(20));
         result[2].EndTime.ShouldBe(TimeSpan.FromMinutes(30));
     }
+
+    [Test]
+    public void Match_Case_Insensitive_Titles_Expression()
+    {
+        // 30 min content
+        var playoutItem = new PlayoutItem { Start = DateTimeOffset.Now.UtcDateTime };
+        playoutItem.Finish = playoutItem.Start + TimeSpan.FromMinutes(30);
+
+        // chapters every 5 min
+        var chapters = new List<MediaChapter>
+        {
+            new() { ChapterId = 1, StartTime = TimeSpan.Zero, EndTime = TimeSpan.FromMinutes(5), Title = "Not Here" },
+            new() { ChapterId = 2, StartTime = TimeSpan.FromMinutes(5), EndTime = TimeSpan.FromMinutes(10), Title = "Here" },
+            new() { ChapterId = 3, StartTime = TimeSpan.FromMinutes(10), EndTime = TimeSpan.FromMinutes(15), Title = "Not Here" },
+            new() { ChapterId = 4, StartTime = TimeSpan.FromMinutes(15), EndTime = TimeSpan.FromMinutes(20), Title = "Here" },
+            new() { ChapterId = 5, StartTime = TimeSpan.FromMinutes(20), EndTime = TimeSpan.FromMinutes(25), Title = "Not Here" },
+            new() { ChapterId = 6, StartTime = TimeSpan.FromMinutes(25), EndTime = TimeSpan.FromMinutes(30), Title = "Here" }
+        };
+
+        var fillerPreset = new FillerPreset
+        {
+            FillerKind = FillerKind.MidRoll,
+            Expression =
+                "title == 'here'"
+        };
+
+        List<MediaChapter> result = FillerExpression.FilterChapters(fillerPreset.Expression, chapters, playoutItem);
+
+        result.Count.ShouldBe(3);
+        result[0].EndTime.ShouldBe(TimeSpan.FromMinutes(10));
+        result[1].EndTime.ShouldBe(TimeSpan.FromMinutes(20));
+        result[2].EndTime.ShouldBe(TimeSpan.FromMinutes(30));
+    }
+
+    [Test]
+    public void Exclude_Case_Insensitive_Titles_Expression()
+    {
+        // 30 min content
+        var playoutItem = new PlayoutItem { Start = DateTimeOffset.Now.UtcDateTime };
+        playoutItem.Finish = playoutItem.Start + TimeSpan.FromMinutes(30);
+
+        // chapters every 5 min
+        var chapters = new List<MediaChapter>
+        {
+            new() { ChapterId = 1, StartTime = TimeSpan.Zero, EndTime = TimeSpan.FromMinutes(5), Title = "Not Here" },
+            new() { ChapterId = 2, StartTime = TimeSpan.FromMinutes(5), EndTime = TimeSpan.FromMinutes(10), Title = "Here" },
+            new() { ChapterId = 3, StartTime = TimeSpan.FromMinutes(10), EndTime = TimeSpan.FromMinutes(15), Title = "Not Here" },
+            new() { ChapterId = 4, StartTime = TimeSpan.FromMinutes(15), EndTime = TimeSpan.FromMinutes(20), Title = "Here" },
+            new() { ChapterId = 5, StartTime = TimeSpan.FromMinutes(20), EndTime = TimeSpan.FromMinutes(25), Title = "Not Here" },
+            new() { ChapterId = 6, StartTime = TimeSpan.FromMinutes(25), EndTime = TimeSpan.FromMinutes(30), Title = "Here" }
+        };
+
+        var fillerPreset = new FillerPreset
+        {
+            FillerKind = FillerKind.MidRoll,
+            Expression =
+                "title != 'not here'"
+        };
+
+        List<MediaChapter> result = FillerExpression.FilterChapters(fillerPreset.Expression, chapters, playoutItem);
+
+        result.Count.ShouldBe(3);
+        result[0].EndTime.ShouldBe(TimeSpan.FromMinutes(10));
+        result[1].EndTime.ShouldBe(TimeSpan.FromMinutes(20));
+        result[2].EndTime.ShouldBe(TimeSpan.FromMinutes(30));
+    }
+
+    [Test]
+    public void Include_Partial_Case_Insensitive_Titles_Expression()
+    {
+        // 30 min content
+        var playoutItem = new PlayoutItem { Start = DateTimeOffset.Now.UtcDateTime };
+        playoutItem.Finish = playoutItem.Start + TimeSpan.FromMinutes(30);
+
+        // chapters every 5 min
+        var chapters = new List<MediaChapter>
+        {
+            new() { ChapterId = 1, StartTime = TimeSpan.Zero, EndTime = TimeSpan.FromMinutes(5), Title = "Not Here" },
+            new() { ChapterId = 2, StartTime = TimeSpan.FromMinutes(5), EndTime = TimeSpan.FromMinutes(10), Title = "Here" },
+            new() { ChapterId = 3, StartTime = TimeSpan.FromMinutes(10), EndTime = TimeSpan.FromMinutes(15), Title = "Not Here" },
+            new() { ChapterId = 4, StartTime = TimeSpan.FromMinutes(15), EndTime = TimeSpan.FromMinutes(20), Title = "Here" },
+            new() { ChapterId = 5, StartTime = TimeSpan.FromMinutes(20), EndTime = TimeSpan.FromMinutes(25), Title = "Not Here" },
+            new() { ChapterId = 6, StartTime = TimeSpan.FromMinutes(25), EndTime = TimeSpan.FromMinutes(30), Title = "Here" }
+        };
+
+        var fillerPreset = new FillerPreset
+        {
+            FillerKind = FillerKind.MidRoll,
+            Expression =
+                "title like \"%here%\""
+        };
+
+        List<MediaChapter> result = FillerExpression.FilterChapters(fillerPreset.Expression, chapters, playoutItem);
+
+        result.Count.ShouldBe(6);
+        result[0].EndTime.ShouldBe(TimeSpan.FromMinutes(5));
+        result[1].EndTime.ShouldBe(TimeSpan.FromMinutes(10));
+        result[2].EndTime.ShouldBe(TimeSpan.FromMinutes(15));
+        result[3].EndTime.ShouldBe(TimeSpan.FromMinutes(20));
+        result[4].EndTime.ShouldBe(TimeSpan.FromMinutes(25));
+        result[5].EndTime.ShouldBe(TimeSpan.FromMinutes(30));
+    }
 }

ErsatzTV.Core/Scheduling/FillerExpression.cs

@@ -15,7 +15,7 @@ public static class FillerExpression
             return effectiveChapters;
         }
 
-        var chapterPoints = effectiveChapters.Map(c => c.EndTime).SkipLast().ToList();
+        var candidateChapters = effectiveChapters.SkipLast().ToList();
 
         var newChapters = new List<MediaChapter>();
 
@@ -26,10 +26,11 @@ public static class FillerExpression
         double contentDuration = (playoutItem.FinishOffset - playoutItem.StartOffset).TotalSeconds;
         var matches = 0;
 
-        for (var index = 0; index < chapterPoints.Count; index++)
+        for (var index = 0; index < candidateChapters.Count; index++)
         {
-            TimeSpan chapterPoint = chapterPoints[index];
+            MediaChapter chapter = candidateChapters[index];
-            var expression = new Expression(fillerExpression);
+            TimeSpan chapterPoint = chapter.EndTime;
+            var expression = new Expression(fillerExpression, ExpressionOptions.CaseInsensitiveStringComparer);
             int chapterNum = index + 1;
             double sinceLastFiller = chapterPoint.TotalSeconds - lastFiller;
             int matchedPoints = matches;
@@ -45,6 +46,7 @@ public static class FillerExpression
                     "matched_points" => matchedPoints,
                     "point" => chapterPoint.TotalSeconds,
                     "num" => chapterNum,
+                    "title" => chapter.Title ?? string.Empty,
                     _ => e.Result
                 };
             };