Added blackdetect and blackframe arguments

rosenbjerg · Jan 31, 2023 · 7f72625 · 7f72625
1 parent 4262fb2
commit 7f72625
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Showing 3 changed files with 30 additions and 0 deletions.
diff --git a/FFMpegCore/FFMpeg/Arguments/BlackDetectArgument.cs b/FFMpegCore/FFMpeg/Arguments/BlackDetectArgument.cs
@@ -0,0 +1,14 @@
+namespace FFMpegCore.Arguments
+{
+    public class BlackDetectArgument : IVideoFilterArgument
+    {
+        public string Key => "blackdetect";
+
+        public string Value { get; }
+
+        public BlackDetectArgument(double minimumDuration = 2.0, double pictureBlackRatioThreshold = 0.98, double pixelBlackThreshold = 0.1)
+        {
+            Value = $"d={minimumDuration}:pic_th={pictureBlackRatioThreshold}:pix_th={pixelBlackThreshold}";
+        }
+    }
+}
diff --git a/FFMpegCore/FFMpeg/Arguments/BlackFrameArgument.cs b/FFMpegCore/FFMpeg/Arguments/BlackFrameArgument.cs
@@ -0,0 +1,14 @@
+namespace FFMpegCore.Arguments
+{
+    internal class BlackFrameArgument : IVideoFilterArgument
+    {
+        public string Key => "blackframe";
+
+        public string Value { get; }
+
+        public BlackFrameArgument(int amount = 98, int threshold = 32)
+        {
+            Value = $"amount={amount}:threshold={threshold}";
+        }
+    }
+}
diff --git a/FFMpegCore/FFMpeg/Arguments/VideoFiltersArgument.cs b/FFMpegCore/FFMpeg/Arguments/VideoFiltersArgument.cs
@@ -51,6 +51,8 @@ public class VideoFilterOptions
         public VideoFilterOptions Mirror(Mirroring mirroring) => WithArgument(new SetMirroringArgument(mirroring));
         public VideoFilterOptions DrawText(DrawTextOptions drawTextOptions) => WithArgument(new DrawTextArgument(drawTextOptions));
         public VideoFilterOptions HardBurnSubtitle(SubtitleHardBurnOptions subtitleHardBurnOptions) => WithArgument(new SubtitleHardBurnArgument(subtitleHardBurnOptions));
+        public VideoFilterOptions BlackDetect(double minimumDuration = 2.0, double pictureBlackRatioThreshold = 0.98, double pixelBlackThreshold = 0.1) => WithArgument(new BlackDetectArgument(minimumDuration, pictureBlackRatioThreshold, pixelBlackThreshold));
+        public VideoFilterOptions BlackFrame(int amount = 98, int threshold = 32) => WithArgument(new BlackFrameArgument(amount, threshold));
 
         private VideoFilterOptions WithArgument(IVideoFilterArgument argument)
         {