COL_SHIFT          48 libavcodec/alpha/simple_idct_alpha.c #define COL_SHIFT 20
COL_SHIFT          52 libavcodec/arm/simple_idct_arm.S #define COL_SHIFT 20
COL_SHIFT          34 libavcodec/arm/simple_idct_armv5te.S #define COL_SHIFT 20
COL_SHIFT          34 libavcodec/arm/simple_idct_armv6.S #define COL_SHIFT 20
COL_SHIFT          37 libavcodec/arm/simple_idct_neon.S #define COL_SHIFT 20
COL_SHIFT          46 libavcodec/simple_idct.c #define COL_SHIFT 17
COL_SHIFT          56 libavcodec/simple_idct.c #define COL_SHIFT 20 // 6
COL_SHIFT          31 libavcodec/x86/idct_mmx.c #define COL_SHIFT 6
COL_SHIFT         560 libavcodec/x86/idct_mmx.c #undef COL_SHIFT
COL_SHIFT          52 libavcodec/x86/idct_sse2_xvid.c #define COL_SHIFT 6
COL_SHIFT          49 libavcodec/x86/simple_idct_mmx.c #define COL_SHIFT 20 // 6