From 358aced447fb1fe11da8bf888dab4e9cade7bcdf Mon Sep 17 00:00:00 2001
From: Paul B Mahol <onemda@gmail.com>
Date: Tue, 28 Nov 2023 12:55:16 +0100
Subject: [PATCH] avfilter/af_amultiply: set output frame duration

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

diff --git a/libavfilter/af_amultiply.c b/libavfilter/af_amultiply.c
index 7871487cdd..4ae355c794 100644
--- a/libavfilter/af_amultiply.c
+++ b/libavfilter/af_amultiply.c
@@ -74,6 +74,7 @@ static int activate(AVFilterContext *ctx)
             return AVERROR(ENOMEM);
 
         out->pts = s->frames[0]->pts;
+        out->duration = s->frames[0]->duration;
 
         if (av_get_packed_sample_fmt(ctx->inputs[0]->format) == AV_SAMPLE_FMT_FLT) {
             for (i = 0; i < s->planes; i++) {