filter_fn_2d     1981 libavcodec/vp9dsp.c filter_fn_2d(sz,        regular, FILTER_8TAP_REGULAR, avg) \
filter_fn_2d     1984 libavcodec/vp9dsp.c filter_fn_2d(sz,        smooth,  FILTER_8TAP_SMOOTH,  avg) \
filter_fn_2d     1987 libavcodec/vp9dsp.c filter_fn_2d(sz,        sharp,   FILTER_8TAP_SHARP,   avg) \
filter_fn_2d     2005 libavcodec/vp9dsp.c #undef filter_fn_2d