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-rw-r--r--examples/alffplay.cpp1
1 files changed, 1 insertions, 0 deletions
diff --git a/examples/alffplay.cpp b/examples/alffplay.cpp
index 7f83f61d..6f6773a4 100644
--- a/examples/alffplay.cpp
+++ b/examples/alffplay.cpp
@@ -18,6 +18,7 @@
#include <mutex>
#include <deque>
#include <array>
+#include <cmath>
extern "C" {
#include "libavcodec/avcodec.h"