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bwdif_vulkan: clamp the temporarily interpolated sample spatially

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This makes the filter output match that of the C version.
It was left intentionally while we figured out if it was better
or not, and while it makes certain samples better, it makes static
samples jump around slightly.
This commit is contained in:
Lynne 2023-07-04 00:48:09 +02:00
parent d4b989c94d
commit 9ff834c2a0
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1 changed files with 1 additions and 2 deletions
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libavfilter/vf_bwdif_vulkan.c
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@ -86,8 +86,7 @@ static const char filter_fn[] = {
C(0, )
C(1, bvec4 interpolate_cnd1 = greaterThan(abs(fc - fe), temp_diff[0]); )
C(1, vec4 interpol = mix(interpolate_cur, interpolate_all, interpolate_cnd1); )
/* Cliping interpol between [fd - diff, fd + diff] is intentionally left out.
* Removing the clipping increases quality. TODO: research and fix the C version to match this. */
C(1, interpol = clamp(interpol, fd - diff, fd + diff); )
C(1, return mix(interpol, fd, diff_mask); )
C(0, } )
};