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-rw-r--r--libavformat/utils.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/libavformat/utils.c b/libavformat/utils.c
index 3df8c51ddd..60242056f1 100644
--- a/libavformat/utils.c
+++ b/libavformat/utils.c
@@ -3967,6 +3967,10 @@ int ff_write_chained(AVFormatContext *dst, int dst_stream, AVPacket *pkt,
local_pkt.dts = av_rescale_q(pkt->dts,
src->streams[pkt->stream_index]->time_base,
dst->streams[dst_stream]->time_base);
+ if (pkt->duration)
+ local_pkt.duration = av_rescale_q(pkt->duration,
+ src->streams[pkt->stream_index]->time_base,
+ dst->streams[dst_stream]->time_base);
return av_write_frame(dst, &local_pkt);
}