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avfilter/vf_v360: improve equirect_to_xyz() quality

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This commit is contained in:
Paul B Mahol 2020-02-23 18:15:06 +01:00
parent c48e5431c8
commit ebc8806b9f
1 changed files with 2 additions and 2 deletions
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4
libavfilter/vf_v360.c
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@ -1561,8 +1561,8 @@ static int equirect_to_xyz(const V360Context *s,
int i, int j, int width, int height, int i, int j, int width, int height,
float *vec) float *vec)
{ {
const float phi = ((2.f * i) / width - 1.f) * M_PI; const float phi = ((2.f * i + 0.5f) / width - 1.f) * M_PI;
const float theta = ((2.f * j) / height - 1.f) * M_PI_2; const float theta = ((2.f * j + 0.5f) / height - 1.f) * M_PI_2;
const float sin_phi = sinf(phi); const float sin_phi = sinf(phi);
const float cos_phi = cosf(phi); const float cos_phi = cosf(phi);