[FFmpeg-devel] [PATCH 1/3] avfilter/vf_ssim360: Fix left-shift of negative value

Andreas Rheinhardt andreas.rheinhardt at outlook.com
Sat Jan 28 19:07:46 EET 2023


Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt at outlook.com>
---
 libavfilter/vf_ssim360.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libavfilter/vf_ssim360.c b/libavfilter/vf_ssim360.c
index a0bf73da1e..89f5100740 100644
--- a/libavfilter/vf_ssim360.c
+++ b/libavfilter/vf_ssim360.c
@@ -547,7 +547,7 @@ static double ssim360_db(double ssim360, double weight)
 static int get_bilinear_sample(const uint8_t *data, BilinearMap *m, int max_value)
 {
     static const int fixed_point_half = 1 << (FIXED_POINT_PRECISION - 1);
-    static const int inv_byte_mask = (-1) << 8;
+    static const int inv_byte_mask = UINT_MAX << 8;
 
     int tl, tr, bl, br, v;
 
-- 
2.34.1



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