From 806109841810da60e41499018090401529040fd8 Mon Sep 17 00:00:00 2001
From: Paul B Mahol <onemda@gmail.com>
Date: Fri, 4 Mar 2022 13:45:19 +0100
Subject: [PATCH] avfilter/avf_abitscope: make frame writable before writing to
 it

---
 libavfilter/avf_abitscope.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/libavfilter/avf_abitscope.c b/libavfilter/avf_abitscope.c
index 982bcc6e61..e6415ddfbf 100644
--- a/libavfilter/avf_abitscope.c
+++ b/libavfilter/avf_abitscope.c
@@ -227,6 +227,7 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *insamples)
     }
 
     if (s->mode == 1) {
+        av_frame_make_writable(s->outpicref);
         outpicref = av_frame_clone(s->outpicref);
         if (!outpicref)
             return AVERROR(ENOMEM);