From e1974622e1e07bee1f6324be60bd0a97f1811b3f Mon Sep 17 00:00:00 2001
From: Paul B Mahol <onemda@gmail.com>
Date: Tue, 1 Mar 2022 10:14:03 +0100
Subject: avfilter/vf_v360: improve rounding in xyz_to_dfisheye()

---
 libavfilter/vf_v360.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libavfilter/vf_v360.c b/libavfilter/vf_v360.c
index a216aeebdd..7f377dd8f2 100644
--- a/libavfilter/vf_v360.c
+++ b/libavfilter/vf_v360.c
@@ -3468,7 +3468,7 @@ static int xyz_to_dfisheye(const V360Context *s,
         u_shift = ceilf(ew);
     } else {
         u_shift = 0;
-        uf = ew - uf;
+        uf = ew - uf - 1.f;
     }
 
     ui = floorf(uf);
-- 
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