WFUNC_BNUTTALL     40 libavfilter/af_firequalizer.c     WFUNC_BNUTTALL,
WFUNC_BNUTTALL     30 libavfilter/window_func.h                       WFUNC_BHARRIS, WFUNC_BNUTTALL, WFUNC_SINE, WFUNC_NUTTALL,