From ff72256235aeaa2a4e197b54f69bad36d61a57d0 Mon Sep 17 00:00:00 2001
From: Paul B Mahol <onemda@gmail.com>
Date: Sat, 20 May 2023 12:33:29 +0200
Subject: [PATCH] avformat/gif: use last frame duration

---
 libavformat/gif.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/libavformat/gif.c b/libavformat/gif.c
index bfa7deb598..568867cc5d 100644
--- a/libavformat/gif.c
+++ b/libavformat/gif.c
@@ -88,6 +88,8 @@ static int gif_get_delay(GIFContext *gif, AVPacket *prev, AVPacket *new)
         gif->duration = av_clip_uint16(new->pts - prev->pts);
     else if (!new && gif->last_delay >= 0)
         gif->duration = gif->last_delay;
+    else if (prev->duration)
+        gif->duration = prev->duration;
 
     return gif->duration;
 }