From 5c93a0a1e40969802f67647aaf2f4ce64f469db0 Mon Sep 17 00:00:00 2001
From: Paul B Mahol <onemda@gmail.com>
Date: Fri, 20 Sep 2019 21:34:46 +0200
Subject: [PATCH] avfilter/vf_v360: add support for mirroring to ball input
 format

---
 libavfilter/vf_v360.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/libavfilter/vf_v360.c b/libavfilter/vf_v360.c
index 79415efd6c..6f1359d2c8 100644
--- a/libavfilter/vf_v360.c
+++ b/libavfilter/vf_v360.c
@@ -1605,8 +1605,8 @@ static void xyz_to_ball(const V360Context *s,
     float uf, vf;
     int ui, vi;
 
-    uf = (1.f - r * vec[0] / l) * width  / 2.f;
-    vf = (1.f + r * vec[1] / l) * height / 2.f;
+    uf = (1.f - r * vec[0] * s->input_mirror_modifier[0] / l) * width  / 2.f;
+    vf = (1.f + r * vec[1] * s->input_mirror_modifier[1] / l) * height / 2.f;
     ui = floorf(uf);
     vi = floorf(vf);