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-rw-r--r--libavutil/common.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/libavutil/common.h b/libavutil/common.h
index b0f0acf3c9..be665a9874 100644
--- a/libavutil/common.h
+++ b/libavutil/common.h
@@ -169,6 +169,8 @@ typedef uint64_t uint_fast64_t;
#define FFMAX(a,b) ((a) > (b) ? (a) : (b))
#define FFMIN(a,b) ((a) > (b) ? (b) : (a))
+#define SWAP(type,a,b) do{type SWAP_tmp= b; b= a; a= SWAP_tmp;}while(0)
+
/* misc math functions */
extern FF_IMPORT_ATTR const uint8_t ff_log2_tab[256];