HIST_GRAIN         64 libavfilter/f_ebur128.c #define HIST_SIZE  ((ABS_UP_THRES - ABS_THRES) * HIST_GRAIN + 1)
HIST_GRAIN        450 libavfilter/f_ebur128.c         h[i].loudness = i / (double)HIST_GRAIN + ABS_THRES;
HIST_GRAIN        513 libavfilter/f_ebur128.c #define HIST_POS(power) (int)(((power) - ABS_THRES) * HIST_GRAIN)