RIGHT_SHIFT       138 libavcodec/jfdctfst.c #define DESCALE(x,n)  RIGHT_SHIFT(x, n)
RIGHT_SHIFT        77 libavcodec/jfdctint.c #define DESCALE(x,n)  RIGHT_SHIFT((x) + (1 << ((n) - 1)), n)
RIGHT_SHIFT        79 libavcodec/jfdctint.c #define DESCALE(x,n)  RIGHT_SHIFT(x, n)
RIGHT_SHIFT       152 libavcodec/jrevdct.c #define DESCALE(x,n)  RIGHT_SHIFT((x) + (ONE << ((n)-1)), n)