---
libavfilter/avf_concat.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/libavfilter/avf_concat.c b/libavfilter/avf_concat.c
index c85c17b51f..af758c5292 100644
--- a/libavfilter/avf_concat.c
+++ b/libavfilter/avf_concat.c
@@ -179,6 +179,7 @@ static int push_frame(AVFilterContext *ctx, unsigned in_no,
AVFrame *buf)
struct concat_in *in = &cat->in[in_no];
buf->pts = av_rescale_q(buf->pts, inlink->time_base, outlink->time_base);
+ buf->duration = av_rescale_q(buf->duration, inlink->time_base,
outlink->time_base);
in->pts = buf->pts;
in->nb_frames++;
/* add duration to input PTS */
--
2.39.1
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