From 1ebac3cda9f4e73b9fc4688ab1b0a96455a6f99a Mon Sep 17 00:00:00 2001
From: Paul B Mahol <onemda@gmail.com>
Date: Wed, 9 Oct 2019 09:56:33 +0200
Subject: [PATCH] avfilter/af_adelay: fix buggy behaviour

---
 libavfilter/af_adelay.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/libavfilter/af_adelay.c b/libavfilter/af_adelay.c
index 06e39fa6a4..c9647771f2 100644
--- a/libavfilter/af_adelay.c
+++ b/libavfilter/af_adelay.c
@@ -165,9 +165,9 @@ static int config_input(AVFilterLink *inlink)
         }
     }
 
-    if (s->all) {
-        for (int j = i + 1; j < s->nb_delays; j++)
-            s->chandelay[j].delay = s->chandelay[i].delay;
+    if (s->all && i) {
+        for (int j = i; j < s->nb_delays; j++)
+            s->chandelay[j].delay = s->chandelay[i-1].delay;
     }
 
     s->padding = s->chandelay[0].delay;