[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 6118c0237e5b2c8064012c792c9bf78c96b6d3c4..74d131331b739e9bea6cbc2267fdc039bf0d5765 100644 (file)
--- 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