From 0cd46b825415cf4b9c9d3569de8c0d3540a713c9 Mon Sep 17 00:00:00 2001
From: Jens Frank <jeluf@users.mediawiki.org>
Date: Sun, 28 May 2006 13:06:48 +0000
Subject: [PATCH] (bug 1017) fix thumbnails of animated gifs

---
 RELEASE-NOTES      | 1 +
 includes/Image.php | 2 ++
 2 files changed, 3 insertions(+)

diff --git a/RELEASE-NOTES b/RELEASE-NOTES
index 5270a5ad2e..846de9ab83 100644
--- a/RELEASE-NOTES
+++ b/RELEASE-NOTES
@@ -363,6 +363,7 @@ it from source control: http://www.mediawiki.org/wiki/Download_from_SVN
 * Format edit comments in Recent Changes feed
 * Switch incorrectly ordered column headers on Recent Changes feed diffs
 * (bug 6117) Use message for history feed description, add German localization
+* (bug 1017) fixed thumbnails of animated gifs.
 
 
 == Compatibility ==
diff --git a/includes/Image.php b/includes/Image.php
index cf92d97bc7..b21964224d 100644
--- a/includes/Image.php
+++ b/includes/Image.php
@@ -1097,6 +1097,8 @@ class Image
 			$cmd  =  wfEscapeShellArg($wgImageMagickConvertCommand) .
 				" {$quality} -background white -size {$width} ".
 				wfEscapeShellArg($this->imagePath) .
+				// Coalesce is needed to scale animated GIFs properly (bug 1017).
+				' -coalesce ' .
 				// For the -resize option a "!" is needed to force exact size,
 				// or ImageMagick may decide your ratio is wrong and slice off
 				// a pixel.
-- 
2.20.1