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lavfi/vf_ssim: narrow variable scopes

This commit is contained in:
Marvin Scholz 2024-09-08 20:51:47 +02:00
parent 3f8061afe8
commit 59244a0c50
1 changed files with 6 additions and 9 deletions
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15
libavfilter/vf_ssim.c
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@ -194,9 +194,8 @@ static float ssim_end1(int s1, int s2, int ss, int s12)
static float ssim_endn_16bit(const int64_t (*sum0)[4], const int64_t (*sum1)[4], int width, int max)
{
float ssim = 0.0;
int i;
for (i = 0; i < width; i++)
for (int i = 0; i < width; i++)
ssim += ssim_end1x(sum0[i][0] + sum0[i + 1][0] + sum1[i][0] + sum1[i + 1][0],
sum0[i][1] + sum0[i + 1][1] + sum1[i][1] + sum1[i + 1][1],
sum0[i][2] + sum0[i + 1][2] + sum1[i][2] + sum1[i + 1][2],
@ -208,9 +207,8 @@ static float ssim_endn_16bit(const int64_t (*sum0)[4], const int64_t (*sum1)[4],
static double ssim_endn_8bit(const int (*sum0)[4], const int (*sum1)[4], int width)
{
double ssim = 0.0;
int i;
for (i = 0; i < width; i++)
for (int i = 0; i < width; i++)
ssim += ssim_end1(sum0[i][0] + sum0[i + 1][0] + sum1[i][0] + sum1[i + 1][0],
sum0[i][1] + sum0[i + 1][1] + sum1[i][1] + sum1[i + 1][1],
sum0[i][2] + sum0[i + 1][2] + sum1[i][2] + sum1[i + 1][2],
@ -443,7 +441,7 @@ static int config_input_ref(AVFilterLink *inlink)
const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format);
AVFilterContext *ctx = inlink->dst;
SSIMContext *s = ctx->priv;
int sum = 0, i;
int sum = 0;
s->nb_threads = ff_filter_get_nb_threads(ctx);
s->nb_components = desc->nb_components;
@ -464,9 +462,9 @@ static int config_input_ref(AVFilterLink *inlink)
s->planeheight[0] = s->planeheight[3] = inlink->h;
s->planewidth[1] = s->planewidth[2] = AV_CEIL_RSHIFT(inlink->w, desc->log2_chroma_w);
s->planewidth[0] = s->planewidth[3] = inlink->w;
for (i = 0; i < s->nb_components; i++)
for (int i = 0; i < s->nb_components; i++)
sum += s->planeheight[i] * s->planewidth[i];
for (i = 0; i < s->nb_components; i++)
for (int i = 0; i < s->nb_components; i++)
s->coefs[i] = (double) s->planeheight[i] * s->planewidth[i] / sum;
s->temp = av_calloc(s->nb_threads, sizeof(*s->temp));
@ -544,9 +542,8 @@ static av_cold void uninit(AVFilterContext *ctx)
if (s->nb_frames > 0) {
char buf[256];
int i;
buf[0] = 0;
for (i = 0; i < s->nb_components; i++) {
for (int i = 0; i < s->nb_components; i++) {
int c = s->is_rgb ? s->rgba_map[i] : i;
av_strlcatf(buf, sizeof(buf), " %c:%f (%f)", s->comps[i], s->ssim[c] / s->nb_frames,
ssim_db(s->ssim[c], s->nb_frames));