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authorFrank Plowman <post@frankplowman.com>2024-01-26 09:13:13 +0000
committerJames Almer <jamrial@gmail.com>2024-01-26 15:47:41 -0300
commit763e31a8d3e3def53fc22828e75df54127e9487e (patch)
tree987576ce144ce9d1921e184dba525638398bb737
parentcb7b4ee02491662e0aeee26479e8add955cd9b43 (diff)
downloadffmpeg-763e31a8d3e3def53fc22828e75df54127e9487e.tar.gz
lavc/vvc: Clamp shift RHS
Resolves the following undefined behavior sanitiser error: runtime error: shift exponent 32 is too large for 32-bit type 'int' Signed-off-by: Frank Plowman <post@frankplowman.com> Signed-off-by: James Almer <jamrial@gmail.com>
-rw-r--r--libavcodec/vvc/vvc_intra_template.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/libavcodec/vvc/vvc_intra_template.c b/libavcodec/vvc/vvc_intra_template.c
index 9fb47549d5..a078885266 100644
--- a/libavcodec/vvc/vvc_intra_template.c
+++ b/libavcodec/vvc/vvc_intra_template.c
@@ -969,7 +969,7 @@ static void FUNC(pred_angular_h)(uint8_t *_src, const uint8_t *_top, const uint8
int pos = (1 + ref_idx) * intra_pred_angle;
int wt;
if (need_pdpc)
- wt = (32 >> ((y * 2) >> nscale));
+ wt = (32 >> FFMIN(31, (y * 2) >> nscale));
for (int x = 0; x < w; x++) {
const int idx = (pos >> 5) + ref_idx;