blob: 6f0bf72e5360d6f2ac79246606ea05109179ea22 (
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--- a/src/effects_i_dsp.c
+++ b/src/effects_i_dsp.c
@@ -362,6 +362,9 @@
assert(Fc >= 0 && Fc <= 1);
lsx_debug("make_lpf(n=%i Fc=%.7g β=%g ρ=%g dc-norm=%i scale=%g)", num_taps, Fc, beta, rho, dc_norm, scale);
+ if (!h)
+ return NULL;
+
for (i = 0; i <= m / 2; ++i) {
double z = i - .5 * m, x = z * M_PI, y = z * mult1;
h[i] = x? sin(Fc * x) / x : Fc;
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