IFAST_SCALE_BITS  316 3rdparty/libjpeg/jddctmgr.c                     CONST_BITS-IFAST_SCALE_BITS);
IFAST_SCALE_BITS  132 3rdparty/libjpeg/jidctfst.c         DESCALE((coef)*(quantval), IFAST_SCALE_BITS-PASS1_BITS)