INTERPOLATE       467 libavcodec/atrac3.c #define INTERPOLATE(old, new, nsample) \
INTERPOLATE        51 libavfilter/vf_super2xsai.c #define INTERPOLATE(A, B) (((A & hi_pixel_mask) >> 1) + ((B & hi_pixel_mask) >> 1) + (A & B & lo_pixel_mask))