Use my home-made GIF and APNG animator. It's really save CPU compared to previous one!

QuickLook.Plugin/QuickLook.Plugin.ImageViewer/AnimatedImage/IAnimationProvider.cs

@@ -0,0 +1,26 @@
+// Copyright © 2017 Paddy Xu
+// 
+// This file is part of QuickLook program.
+// 
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+// 
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+// 
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+using System.Windows.Media.Animation;
+
+namespace QuickLook.Plugin.ImageViewer.AnimatedImage
+{
+    internal interface IAnimationProvider
+    {
+        void GetAnimator(ObjectAnimationUsingKeyFrames animator, string path);
+    }
+}