From 0d9aeb9c25ed2a1820d76fee1930d71ed7fd30f8 Mon Sep 17 00:00:00 2001
From: Anton Khirnov <anton@khirnov.net>
Date: Tue, 16 Aug 2022 16:26:11 +0200
Subject: lavfi/avf_showcqt: set frame durations

The filter is supposed to produce CFR output.
---
 libavfilter/avf_showcqt.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/libavfilter/avf_showcqt.c b/libavfilter/avf_showcqt.c
index 33c482bd42..c019dc2564 100644
--- a/libavfilter/avf_showcqt.c
+++ b/libavfilter/avf_showcqt.c
@@ -1187,6 +1187,7 @@ static int plot_cqt(AVFilterContext *ctx, AVFrame **frameout)
             UPDATE_TIME(s->sono_time);
         }
         out->pts = s->next_pts;
+        out->duration = PTS_STEP;
         s->next_pts += PTS_STEP;
     }
     s->sono_count = (s->sono_count + 1) % s->count;
-- 
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