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avfilter/vf_nlmeans: make access to pointer to lut faster

This commit is contained in:
Paul B Mahol 2021-10-24 14:26:35 +02:00
parent 81380d221c
commit 959ec353ce
1 changed files with 2 additions and 1 deletions
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3
libavfilter/vf_nlmeans.c
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@ -344,6 +344,7 @@ static int nlmeans_slice(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs
const int dist_b = 2*p + 1;
const int dist_d = dist_b * s->ii_lz_32;
const int dist_e = dist_d + dist_b;
const float *const weight_lut = s->weight_lut;
for (int y = starty; y < endy; y++) {
const uint8_t *src = td->src + y*src_linesize;
@ -385,7 +386,7 @@ static int nlmeans_slice(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs
const uint32_t patch_diff_sq = e - d - b + a;
if (patch_diff_sq < s->max_meaningful_diff) {
const float weight = s->weight_lut[patch_diff_sq]; // exp(-patch_diff_sq * s->pdiff_scale)
const float weight = weight_lut[patch_diff_sq]; // exp(-patch_diff_sq * s->pdiff_scale)
wa[x].total_weight += weight;
wa[x].sum += weight * src[x];
}