From 3ce4e0808924c55cbb387a6249bcb1e82ea44f63 Mon Sep 17 00:00:00 2001
From: Paul B Mahol <onemda@gmail.com>
Date: Sat, 30 Apr 2022 16:15:43 +0200
Subject: [PATCH] avfilter/avf_avectorscope: request new frames only when
 needed

---
 libavfilter/avf_avectorscope.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/libavfilter/avf_avectorscope.c b/libavfilter/avf_avectorscope.c
index 200b2e452c..fe381a631d 100644
--- a/libavfilter/avf_avectorscope.c
+++ b/libavfilter/avf_avectorscope.c
@@ -414,6 +414,11 @@ static int activate(AVFilterContext *ctx)
     if (ret > 0)
         return filter_frame(inlink, in);
 
+    if (ff_inlink_queued_samples(inlink) >= s->nb_samples) {
+        ff_filter_set_ready(ctx, 10);
+        return 0;
+    }
+
     FF_FILTER_FORWARD_STATUS(inlink, outlink);
     FF_FILTER_FORWARD_WANTED(outlink, inlink);