ff_ebur128_loudness_range  543 libavfilter/af_loudnorm.c         ff_ebur128_loudness_range(s->r128_in, &lra);
ff_ebur128_loudness_range  813 libavfilter/af_loudnorm.c     ff_ebur128_loudness_range(s->r128_in, &lra_in);
ff_ebur128_loudness_range  823 libavfilter/af_loudnorm.c     ff_ebur128_loudness_range(s->r128_out, &lra_out);
ff_ebur128_loudness_range  257 libavfilter/ebur128.h int ff_ebur128_loudness_range(FFEBUR128State * st, double *out);