Fix a typo
Strip an unneeded malloc call
Fix build error
Fix static image processing with gdk-pixbuf2
Merge branch 'fix-segfault-of-accessing-delay-value' into gdk-pixbuf
Revert "Fix static image processing with gdk-pixbuf2"

This reverts commit 5e5f2aed34dc1356c151513d5e31d9f14ce64c8e.
Fix an error when glib version < 2.36
Fix a double free error
Merge branch 'gdk-pixbuf' into release-0.25