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avfilter/vf_v360: improve equirect_to_xyz() quality
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@ -1561,8 +1561,8 @@ static int equirect_to_xyz(const V360Context *s,
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int i, int j, int width, int height,
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float *vec)
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{
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const float phi = ((2.f * i) / width - 1.f) * M_PI;
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const float theta = ((2.f * j) / height - 1.f) * M_PI_2;
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const float phi = ((2.f * i + 0.5f) / width - 1.f) * M_PI;
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const float theta = ((2.f * j + 0.5f) / height - 1.f) * M_PI_2;
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const float sin_phi = sinf(phi);
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const float cos_phi = cosf(phi);
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