#include "libavutil/pixdesc.h"
#include "libavutil/avstring.h"
-#define NS(n) n < 0 ? (int)(n*65536.0-0.5+DBL_EPSILON) : (int)(n*65536.0+0.5)
+#define NS(n) ((n) < 0 ? (int)((n)*65536.0-0.5+DBL_EPSILON) : (int)((n)*65536.0+0.5))
#define CB(n) av_clip_uint8(n)
static const double yuv_coeff[4][3][3] = {