fix adding pad filler to short content (#1806)

CHANGELOG.md

@@ -31,6 +31,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 - Fix filler preset editor and deco dead air fallback editor to only show supported collection types
 - Fix infinite loop caused by impossible schedule (all collection items longer than schedule item duration)
 - Fix selecting audio and subtitle streams with two-letter language codes
+- Fix adding pad filler to content that is less than one minute in duration
 
 ### Changed
 - Remove some unnecessary API calls related to media server scanning and paging

ErsatzTV.Core/Scheduling/PlayoutModeSchedulerBase.cs

@@ -417,7 +417,6 @@ public abstract class PlayoutModeSchedulerBase<T> : IPlayoutModeScheduler<T> whe
                                               TimeSpan.FromMinutes(currentMinute) +
                                               TimeSpan.FromMinutes(targetMinute);
 
-
             var targetTime = new DateTimeOffset(
                 almostTargetTime.Year,
                 almostTargetTime.Month,
@@ -427,6 +426,10 @@ public abstract class PlayoutModeSchedulerBase<T> : IPlayoutModeScheduler<T> whe
                 0,
                 almostTargetTime.Offset);
 
+            // ensure filler works for content less than one minute
+            if (targetTime <= playoutItem.StartOffset + totalDuration)
+                targetTime = targetTime.AddMinutes(padFiller.PadToNearestMinute.Value);
+
             TimeSpan remainingToFill = targetTime - totalDuration - playoutItem.StartOffset;
 
             // Logger.LogInformation(