From 2f3a3a7e3270d9c4486fc4d1ed708c2f54338f9c Mon Sep 17 00:00:00 2001
From: Carl Eugen Hoyos <ceffmpeg@gmail.com>
Date: Sun, 17 Sep 2017 23:34:58 +0200
Subject: [PATCH] lavf/utils: Do not force chapter end time before chapter
 start.

Fixes ticket #6671.
---
 libavformat/utils.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libavformat/utils.c b/libavformat/utils.c
index 23865c88c4..7abca632b5 100644
--- a/libavformat/utils.c
+++ b/libavformat/utils.c
@@ -3167,7 +3167,7 @@ static void compute_chapters_end(AVFormatContext *s)
                 if (j != i && next_start > ch->start && next_start < end)
                     end = next_start;
             }
-            ch->end = (end == INT64_MAX) ? ch->start : end;
+            ch->end = (end == INT64_MAX || end < ch->start) ? ch->start : end;
         }
 }