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-rw-r--r--libavformat/mux.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/libavformat/mux.c b/libavformat/mux.c
index 3578a52034..29ab3f5dc2 100644
--- a/libavformat/mux.c
+++ b/libavformat/mux.c
@@ -494,6 +494,8 @@ static inline int split_write_packet(AVFormatContext *s, AVPacket *pkt)
did_split = av_packet_split_side_data(pkt);
ret = s->oformat->write_packet(s, pkt);
+ if (s->flush_packets && s->pb && s->pb->error >= 0)
+ avio_flush(s->pb);
if (did_split)
av_packet_merge_side_data(pkt);
return ret;