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-rw-r--r--libavformat/mxfenc.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/libavformat/mxfenc.c b/libavformat/mxfenc.c
index 4b5348854d..2d26494049 100644
--- a/libavformat/mxfenc.c
+++ b/libavformat/mxfenc.c
@@ -597,7 +597,7 @@ static void mxf_write_mpegvideo_desc(AVFormatContext *s, AVStream *st)
AVRational dar;
int f1, f2;
- mxf_write_generic_desc(pb, st, mxf_mpegvideo_descriptor_key, 157);
+ mxf_write_generic_desc(pb, st, mxf_mpegvideo_descriptor_key, 153+sc->interlaced*4);
mxf_write_local_tag(pb, 4, 0x3203);
put_be32(pb, st->codec->width);