filter_dbl        158 libavfilter/af_acontrast.c     case AV_SAMPLE_FMT_DBL:  s->filter = filter_dbl;  break;
filter_dbl        221 libavfilter/af_asoftclip.c     case AV_SAMPLE_FMT_DBLP: s->filter = filter_dbl; break;
filter_dbl        230 libavfilter/af_crystalizer.c     case AV_SAMPLE_FMT_DBL:  s->filter = filter_dbl;  break;