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-rw-r--r--libswresample/swresample-test.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/libswresample/swresample-test.c b/libswresample/swresample-test.c
index c0162cd646..8859e9412c 100644
--- a/libswresample/swresample-test.c
+++ b/libswresample/swresample-test.c
@@ -153,7 +153,7 @@ static void audiogen(void *data, enum AVSampleFormat sample_fmt,
unsigned static rnd;
#define PUT_SAMPLE set(data, ch, k, channels, sample_fmt, v);
-#define uint_rand(x) (x = x * 1664525 + 1013904223)
+#define uint_rand(x) ((x) = (x) * 1664525 + 1013904223)
#define dbl_rand(x) (uint_rand(x)*2.0 / (double)UINT_MAX - 1)
k = 0;