From 79f0c1c6a7b4416c06fca09adc4c89776e1850e1 Mon Sep 17 00:00:00 2001
From: Anton Khirnov <anton@khirnov.net>
Date: Tue, 12 Jul 2022 14:37:15 +0200
Subject: lavc/pngenc: pass through frame durations to encoded packets for APNG

---
 libavcodec/pngenc.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/libavcodec/pngenc.c b/libavcodec/pngenc.c
index ca9873f673..f7b57aea60 100644
--- a/libavcodec/pngenc.c
+++ b/libavcodec/pngenc.c
@@ -977,6 +977,7 @@ static int encode_apng(AVCodecContext *avctx, AVPacket *pkt,
 
         memcpy(pkt->data, s->last_frame_packet, s->last_frame_packet_size);
         pkt->pts = pkt->dts = s->last_frame->pts;
+        pkt->duration = s->last_frame->duration;
     }
 
     if (pict) {
-- 
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