From 5133d3b06a8f526e2b5ecfc857af461b66322718 Mon Sep 17 00:00:00 2001
From: Wan-Teh Chang <wtc@google.com>
Date: Fri, 11 Sep 2026 15:03:24 -0700
Subject: [PATCH] gainmap.c: Omit unneeded avifImageAllocatePlanes

Omit the unneeded avifImageAllocatePlanes() call in
avifRGBImageComputeGainMap(). The avifImage is passed to
avifImageRGBToYUV(), which will call avifImageAllocatePlanes().
---
 src/gainmap.c | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/src/gainmap.c b/src/gainmap.c
index eee9e7b5aa..30c1f3799e 100644
--- a/src/gainmap.c
+++ b/src/gainmap.c
@@ -793,10 +793,6 @@ avifResult avifRGBImageComputeGainMap(const avifRGBImage * baseRgbImage,
     gainMapImage->height = height;
 
     avifImageFreePlanes(gainMapImage, AVIF_PLANES_ALL); // Free planes in case they were already allocated.
-    res = avifImageAllocatePlanes(gainMapImage, AVIF_PLANES_YUV);
-    if (res != AVIF_RESULT_OK) {
-        goto cleanup;
-    }
 
     avifRGBImageSetDefaults(&gainMapRGB, gainMapImage);
     res = avifRGBImageAllocatePixels(&gainMapRGB);