ABSDIFF           415 libavcodec/flashsv2enc.c #define ABSDIFF(a,b) (abs((int)(a)-(int)(b)))
ABSDIFF            68 libavfilter/vf_hqx.c #define ABSDIFF(a,b) (abs((int)(a)-(int)(b)))
ABSDIFF            72 libavfilter/vf_xbr.c #define ABSDIFF(a,b) (abs((int)(a)-(int)(b)))