NEXT1D           1708 libavfilter/vf_lut3d.c     const int next = NEXT1D(s);
NEXT1D           1720 libavfilter/vf_lut3d.c     const int next = NEXT1D(s);
NEXT1D           1733 libavfilter/vf_lut3d.c     const int next = NEXT1D(s);
NEXT1D           1756 libavfilter/vf_lut3d.c     const int next = NEXT1D(s);