From 3e288dbf56da7213b1ca656f19bd216a9ba90929 Mon Sep 17 00:00:00 2001
From: Paul B Mahol <onemda@gmail.com>
Date: Mon, 21 Nov 2022 15:44:44 +0100
Subject: [PATCH] avfilter/avf_showspectrum: set hop_size for showspectrumpic

Fixes invalid spikes in video output.
---
 libavfilter/avf_showspectrum.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/libavfilter/avf_showspectrum.c b/libavfilter/avf_showspectrum.c
index 01969287cd..24a424a34a 100644
--- a/libavfilter/avf_showspectrum.c
+++ b/libavfilter/avf_showspectrum.c
@@ -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 = FFMAX(1, spf);
+        s->hop_size = spf;
 
         spb = (s->samples / (spf * sz)) * spf;