RIGHT_SHIFT       135 libavcodec/jfdctfst.c #define DESCALE(x,n)  RIGHT_SHIFT(x, n)
RIGHT_SHIFT        72 libavcodec/jfdctint_template.c #define DESCALE(x,n)  RIGHT_SHIFT((x) + (1 << ((n) - 1)), n)
RIGHT_SHIFT       153 libavcodec/jrevdct.c #define DESCALE(x,n)  RIGHT_SHIFT((x) + (ONE << ((n)-1)), n)