avformat/mux: flush after header writing, like after packets
This makes problematic unconditional flushes in mpegts redundant And is thus part of a fix for ticket 2748 Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
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@ -421,6 +421,8 @@ int avformat_write_header(AVFormatContext *s, AVDictionary **options)
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ret = s->pb->error;
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if (ret < 0)
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return ret;
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if (s->flush_packets && s->pb && s->pb->error >= 0 && s->flags & AVFMT_FLAG_FLUSH_PACKETS)
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avio_flush(s->pb);
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}
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if ((ret = init_pts(s)) < 0)
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