From bb205d3d85069a8ddb4442ada1d49062837d9862 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Barnab=C3=A1s=20P=C5=91cze?= <pobrn@protonmail.com>
Date: Fri, 24 Jun 2022 16:14:33 +0200
Subject: [PATCH] spa: audioconvert: use unsigned 64-bit integer for creating
 divisor

Using `int` results in UndefinedBehaviorSanitizer errors
when `noise::intensity` is 31 as that would shift the 1 into
the sign bit of a signed integer type.
---
 spa/plugins/audioconvert/noise-ops.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/spa/plugins/audioconvert/noise-ops.c b/spa/plugins/audioconvert/noise-ops.c
index c7e54ea95..1c934792e 100644
--- a/spa/plugins/audioconvert/noise-ops.c
+++ b/spa/plugins/audioconvert/noise-ops.c
@@ -24,6 +24,7 @@
 
 #include <string.h>
 #include <stdio.h>
+#include <stdint.h>
 #include <math.h>
 
 #include <spa/param/audio/format-utils.h>
@@ -71,7 +72,7 @@ int noise_init(struct noise *ns)
 		return -ENOTSUP;
 
 	for (i = 0; i < SPA_N_ELEMENTS(ns->tab); i++)
-		ns->tab[i] = (drand48() - 0.5) / (1 << ns->intensity);
+		ns->tab[i] = (drand48() - 0.5) / (UINT64_C(1) << ns->intensity);
 
 	ns->free = impl_noise_free;
 	ns->process = info->process;