Fix memory leak in libheif

Author: DarthSim

CHANGELOG.md

@@ -1,5 +1,9 @@
 # Changelog
 
+## [3.15.6] - 2026-03-17
+### Fixed
+- Fix memory leak in libheif when saving HEIC/AVIF images with alpha channel.
+
 ## [3.15.5] - 2026-03-13
 ### Changed
 - Update GLib to 2.87.5.

build-deps.sh

@@ -312,6 +312,9 @@ print_build_stage libheif $LIBHEIF_VERSION
 cd $DEPS_SRC/libheif
 # Ignore alpha in yuv2rgb and rgb2rgb if it has different BPP
 curl -Ls https://github.com/DarthSim/libheif/commit/d63ec62d93ab1420c8cf76378af2a806aeb5292d.patch | git apply
+# Fix memory leak in encoders
+# Remove when the fix is released
+curl -Ls https://github.com/DarthSim/libheif/commit/5d56b234d465358f0fcdfbac93835f1094dc13ae.patch | git apply
 mkdir _build
 cd _build
 CFLAGS="${CFLAGS} -O3" CXXFLAGS="${CXXFLAGS} -O3" \