BITS_INV_ACC       33 libavcodec/ps2/idct_mmi.c #define SHIFT_INV_ROW   (16 - BITS_INV_ACC)
BITS_INV_ACC       34 libavcodec/ps2/idct_mmi.c #define SHIFT_INV_COL   (1 + BITS_INV_ACC)
BITS_INV_ACC       50 libavcodec/x86/idct_mmx_xvid.c #define SHIFT_INV_ROW   (16 - BITS_INV_ACC) //11
BITS_INV_ACC       51 libavcodec/x86/idct_mmx_xvid.c #define SHIFT_INV_COL   (1 + BITS_INV_ACC) //6
BITS_INV_ACC       52 libavcodec/x86/idct_mmx_xvid.c #define RND_INV_ROW     (1024 * (6 - BITS_INV_ACC))
BITS_INV_ACC       53 libavcodec/x86/idct_mmx_xvid.c #define RND_INV_COL     (16 * (BITS_INV_ACC - 3))