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-rw-r--r--libaf/af_resample.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/libaf/af_resample.c b/libaf/af_resample.c
index 0953217c4c..2536c0706d 100644
--- a/libaf/af_resample.c
+++ b/libaf/af_resample.c
@@ -25,6 +25,7 @@
#include <inttypes.h>
#include "libavutil/common.h"
+#include "libavutil/mathematics.h"
#include "af.h"
#include "dsp.h"