From 4dbbf345d4912283dc63a92d71d7400b4501783c Mon Sep 17 00:00:00 2001
From: Rafael Carvalho <rpaschoal@live.com>
Date: Mon, 6 Mar 2023 17:25:08 +1300
Subject: [PATCH] Add "GifPalettArgument" for outputting GIFs

---
 .../FFMpeg/Arguments/GifPalettArgument.cs     | 21 +++++++++++++++++++
 1 file changed, 21 insertions(+)
 create mode 100644 FFMpegCore/FFMpeg/Arguments/GifPalettArgument.cs

diff --git a/FFMpegCore/FFMpeg/Arguments/GifPalettArgument.cs b/FFMpegCore/FFMpeg/Arguments/GifPalettArgument.cs
new file mode 100644
index 0000000..408832d
--- /dev/null
+++ b/FFMpegCore/FFMpeg/Arguments/GifPalettArgument.cs
@@ -0,0 +1,21 @@
+using System.Drawing;
+
+namespace FFMpegCore.Arguments
+{
+    public class GifPalettArgument : IArgument
+    {
+        private readonly int _fps;
+
+        private readonly Size? _size;
+
+        public GifPalettArgument(int fps, Size? size)
+        {
+            _fps = fps;
+            _size = size;
+        }
+
+        private string ScaleText => _size.HasValue ? $"scale=w={_size.Value.Width}:h={_size.Value.Height}," : string.Empty;
+
+        public string Text => $"-filter_complex \"[0:v] fps={_fps},{ScaleText}split [a][b];[a] palettegen=max_colors=32 [p];[b][p] paletteuse=dither=bayer\"";
+    }
+}