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-rw-r--r--libavfilter/vf_v360.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/libavfilter/vf_v360.c b/libavfilter/vf_v360.c
index de79fcdcf2..dee632c258 100644
--- a/libavfilter/vf_v360.c
+++ b/libavfilter/vf_v360.c
@@ -1561,8 +1561,8 @@ static int equirect_to_xyz(const V360Context *s,
int i, int j, int width, int height,
float *vec)
{
- const float phi = ((2.f * i) / width - 1.f) * M_PI;
- const float theta = ((2.f * j) / height - 1.f) * M_PI_2;
+ const float phi = ((2.f * i + 0.5f) / width - 1.f) * M_PI;
+ const float theta = ((2.f * j + 0.5f) / height - 1.f) * M_PI_2;
const float sin_phi = sinf(phi);
const float cos_phi = cosf(phi);