build_filter      102 libavcodec/resample2.c static int build_filter(FELEM *filter, double factor, int tap_count, int phase_count, int scale, int type){
build_filter       67 libavresample/resample.c static int build_filter(ResampleContext *c, double factor)
build_filter       70 libswresample/resample.c static int build_filter(ResampleContext *c, void *filter, double factor, int tap_count, int alloc, int phase_count, int scale,