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avfilter/avf_showspectrum: fix hz scale with legend enabled

This commit is contained in:
Paul B Mahol 2021-07-24 16:56:51 +02:00
parent 014ace8f98
commit e5c860cd29
1 changed files with 2 additions and 2 deletions
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4
libavfilter/avf_showspectrum.c
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@ -759,7 +759,7 @@ static int draw_legend(AVFilterContext *ctx, int samples)
for (y = 0; y < h; y += 40) {
float range = s->stop ? s->stop - s->start : inlink->sample_rate / 2;
float bin = s->fscale == F_LINEAR ? y : get_log_hz(y, h, inlink->sample_rate);
float hertz = s->start + bin * range / (float)(1 << (int)ceil(log2(h)));
float hertz = s->start + bin * range / (float)h;
char *units;
if (hertz == 0)
@ -817,7 +817,7 @@ static int draw_legend(AVFilterContext *ctx, int samples)
for (x = 0; x < w - 79; x += 80) {
float range = s->stop ? s->stop - s->start : inlink->sample_rate / 2;
float bin = s->fscale == F_LINEAR ? x : get_log_hz(x, w, inlink->sample_rate);
float hertz = s->start + bin * range / (float)(1 << (int)ceil(log2(w)));
float hertz = s->start + bin * range / (float)w;
char *units;
if (hertz == 0)