RAND_N 88 libavfilter/vf_noise.c noise[i] = (RAND_N(strength) - strength / 2) / 6 RAND_N 91 libavfilter/vf_noise.c noise[i] = (RAND_N(strength) - strength / 2) / 3; RAND_N 95 libavfilter/vf_noise.c noise[i] = (RAND_N(strength) - strength / 2) / 2 RAND_N 98 libavfilter/vf_noise.c noise[i] = RAND_N(strength) - strength / 2; RAND_N 121 libavfilter/vf_noise.c if (RAND_N(6) == 0)