From 47b44f902ed0669a28db99f1a2dc64cc2501f175 Mon Sep 17 00:00:00 2001
From: Tristan Matthews <tmatth@videolan.org>
Date: Tue, 30 Sep 2025 20:47:11 -0400
Subject: [PATCH] spectrogram: add assertion on sections

Fixes CID 1048734

Co-authored-by: Alexandre Janniaux <ajanni@videolabs.io>
---
 modules/visualization/visual/effects.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/modules/visualization/visual/effects.c b/modules/visualization/visual/effects.c
index b25f70a741..ec18991ab7 100644
--- a/modules/visualization/visual/effects.c
+++ b/modules/visualization/visual/effects.c
@@ -573,6 +573,9 @@ static int spectrometer_Run(visual_effect_t * p_effect, vlc_object_t *p_aout,
 
     i_nb_bands *= i_sections;
 
+    if( i_sections <= 0 )
+        vlc_assert_unreachable();
+
     for ( i = 0 ; i< i_nb_bands/i_sections ;i++)
     {
         /* We search the maximum on one scale */