1 files changed, 1 insertions, 0 deletions
diff --git a/ffmpeg.c b/ffmpeg.c
index b9309aed43..1a4d2a1204 100644
--- a/ffmpeg.c
+++ b/ffmpeg.c
@@ -40,6 +40,7 @@
 #include "libavutil/fifo.h"
 #include "libavutil/intreadwrite.h"
 #include "libavutil/dict.h"
+#include "libavutil/mathematics.h"
 #include "libavutil/pixdesc.h"
 #include "libavutil/avstring.h"
 #include "libavutil/libm.h"