[FFmpeg-devel] [PR] swscale/utils: Fix clearing on alloc (PR #21580)

[michaelni via ffmpeg-devel <ffmpeg-devel@ffmpeg.org>]

PR #21580 opened by michaelni
URL: https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/21580
Patch URL: https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/21580.patch

This restores the zeroing that was unintentionally removed in 2 cases in 795bb37a39e163cbb5b6d897ebb0ca90ea7b449a

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>


>From a8f6fbffa2575450ee8f4f843e29db8a7c3ef3e0 Mon Sep 17 00:00:00 2001
From: Michael Niedermayer <michael@niedermayer.cc>
Date: Mon, 26 Jan 2026 03:02:36 +0100
Subject: [PATCH] swscale/utils: Fix clearing on alloc

This restores the zeroing that was unintentionally removed in 2 cases in 795bb37a39e163cbb5b6d897ebb0ca90ea7b449a

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
---
 libswscale/utils.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/libswscale/utils.c b/libswscale/utils.c
index 24942fe6da..195af846d4 100644
--- a/libswscale/utils.c
+++ b/libswscale/utils.c
@@ -388,7 +388,7 @@ static av_cold int initFilter(int16_t **outFilter, int32_t **filterPos,
     if (dstFilter)
         filter2Size += dstFilter->length - 1;
     av_assert0(filter2Size > 0);
-    filter2 = av_malloc_array(dstW, filter2Size * sizeof(*filter2));
+    filter2 = av_calloc(dstW, filter2Size * sizeof(*filter2));
     if (!filter2)
         goto nomem;
     for (i = 0; i < dstW; i++) {
@@ -557,7 +557,7 @@ static av_cold int initFilter(int16_t **outFilter, int32_t **filterPos,
 
     // Note the +1 is for the MMX scaler which reads over the end
     /* align at 16 for AltiVec (needed by hScale_altivec_real) */
-    *outFilter = av_malloc_array(dstW + 3, *outFilterSize * sizeof(**outFilter));
+    *outFilter = av_calloc(dstW + 3, *outFilterSize * sizeof(**outFilter));
     if (!*outFilter)
         goto nomem;
 
-- 
2.52.0

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