From 54e348662d697e5ddcfaa9c653d9bbb08971747b Mon Sep 17 00:00:00 2001
From: Maryla <maryla@google.com>
Date: Mon, 11 Dec 2023 14:21:42 +0100
Subject: [PATCH] Remove unnecessary rounding.

---
 src/gainmap.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/gainmap.c b/src/gainmap.c
index 0cbd82a8aa..a77c44da9e 100644
--- a/src/gainmap.c
+++ b/src/gainmap.c
@@ -479,8 +479,8 @@ avifResult avifRGBImageComputeGainMap(const avifRGBImage * baseRgbImage,
     for (int c = 0; c < 3; ++c) {
         gainMapMetadata.gainMapMin[c] = gainMapMinLog2[singleChannel ? 0 : c];
         gainMapMetadata.gainMapMax[c] = gainMapMaxLog2[singleChannel ? 0 : c];
-        gainMapMetadata.baseHdrHeadroom = avifRoundf(log2f(baseMax));
-        gainMapMetadata.alternateHdrHeadroom = avifRoundf(log2f(altMax));
+        gainMapMetadata.baseHdrHeadroom = log2f(baseMax);
+        gainMapMetadata.alternateHdrHeadroom = log2f(altMax);
         // baseOffset, alternateOffset and gainMapGamma are all left to their default values.
         // They could be tweaked based on the images to optimize quality/compression.
     }