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avfilter/avf_showspectrum: set hop_size for showspectrumpic

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Fixes invalid spikes in video output.
This commit is contained in:
Paul B Mahol 2022-11-21 15:44:44 +01:00
parent 459527108a
commit 3e288dbf56
1 changed files with 1 additions and 0 deletions
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libavfilter/avf_showspectrum.c
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@ -1770,6 +1770,7 @@ static int showspectrumpic_request_frame(AVFilterLink *outlink)
spf = s->win_size * (s->samples / ((s->win_size * sz) * ceil(s->samples / (float)(s->win_size * sz)))); spf = s->win_size * (s->samples / ((s->win_size * sz) * ceil(s->samples / (float)(s->win_size * sz))));
spf = FFMAX(1, spf); spf = FFMAX(1, spf);
s->hop_size = spf;
spb = (s->samples / (spf * sz)) * spf; spb = (s->samples / (spf * sz)) * spf;