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-rw-r--r--libavfilter/transform.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/libavfilter/transform.h b/libavfilter/transform.h
index 6e688487b2..701c833ecc 100644
--- a/libavfilter/transform.h
+++ b/libavfilter/transform.h
@@ -19,6 +19,9 @@
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
+#ifndef AVFILTER_TRANSFORM_H
+#define AVFILTER_TRANSFORM_H
+
/**
* @file
* transform input video
@@ -118,3 +121,4 @@ void avfilter_transform(const uint8_t *src, uint8_t *dst,
enum InterpolateMethod interpolate,
enum FillMethod fill);
+#endif /* AVFILTER_TRANSFORM_H */