From: Andrey Volk <andywolk@gmail.com>
Date: Tue, 31 May 2022 21:09:48 +0000 (+0300)
Subject: [Core] VAD: Add a math sanity check to the switch_vad_process
X-Git-Tag: v1.10.12^2~36^2
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=85400015b7eed420f49bfde85cd08acc44f48b28;p=thirdparty%2Ffreeswitch.git

[Core] VAD: Add a math sanity check to the switch_vad_process
---

diff --git a/src/switch_vad.c b/src/switch_vad.c
index 6118c0237e..74d131331b 100644
--- a/src/switch_vad.c
+++ b/src/switch_vad.c
@@ -206,7 +206,9 @@ SWITCH_DECLARE(switch_vad_state_t) switch_vad_process(switch_vad_t *vad, int16_t
 			j += vad->channels;
 		}
 
-		score = (uint32_t) (energy / (samples / vad->divisor));
+		if (samples && vad->divisor && samples >= vad->divisor) {
+			score = (uint32_t)(energy / (samples / vad->divisor));
+		}
 #ifdef SWITCH_HAVE_FVAD
 	}
 #endif