From a734c5bd4ae717c5109efbd91ad77be18f558ca6 Mon Sep 17 00:00:00 2001
From: N00MKRAD <login@nmkd.de>
Date: Sun, 25 Apr 2021 14:02:15 +0200
Subject: [PATCH] Add "-gifflags -offsetting" to fix transparent GIF encoding

---
 Code/Media/FfmpegEncode.cs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Code/Media/FfmpegEncode.cs b/Code/Media/FfmpegEncode.cs
index 353b4d6..199ffe1 100644
--- a/Code/Media/FfmpegEncode.cs
+++ b/Code/Media/FfmpegEncode.cs
@@ -95,7 +95,7 @@ namespace Flowframes.Media
             string paletteFilter = palette ? $"-vf \"split[s0][s1];[s0]palettegen={colors}[p];[s1][p]paletteuse=dither={dither}\"" : "";
             string fpsFilter = (resampleFps <= 0) ? "" : $"fps=fps={resampleFps.ToStringDot()}";
             string vf = FormatUtils.ConcatStrings(new string[] { paletteFilter, fpsFilter });
-            string args = $"-f concat -r {rate} -i {vfrFilename.Wrap()} {vf} {outPath.Wrap()}";
+            string args = $"-f concat -r {rate} -i {vfrFilename.Wrap()} -gifflags -offsetting {vf} {outPath.Wrap()}";
             await RunFfmpeg(args, framesFile.GetParentDir(), LogMode.OnlyLastLine, "error", TaskType.Encode);
         }
     }