SQRT               31 libavfilter/avf_ahistogram.c enum DisplayScale   { LINEAR, SQRT, CBRT, LOG, RLOG, NB_SCALES };
SQRT               52 libavfilter/avf_avectorscope.c     SQRT,
SQRT               49 libavfilter/avf_showspectrum.c enum DisplayScale { LINEAR, SQRT, CBRT, LOG, FOURTHRT, FIFTHRT, NB_SCALES };