FS-9496

diff --git a/src/switch_rtp.c b/src/switch_rtp.c
index a2c4ebdc3e9aa7aee2e7d6ca56606dc009554f3f..0879ab63aab43c1f62d279b357def49f9b06563d 100644 (file)
--- a/src/switch_rtp.c
+++ b/src/switch_rtp.c
@@ -1693,7 +1693,11 @@ static void check_jitter(switch_rtp_t *rtp_session)
        rtp_session->stats.inbound.jitter_n++;
        rtp_session->stats.inbound.jitter_add += diff_time;
 
-       cur_diff = (int64_t)(diff_time - rtp_session->stats.inbound.mean_interval);
+       if (rtp_session->stats.inbound.mean_interval) {
+               cur_diff = (int64_t)(diff_time - rtp_session->stats.inbound.mean_interval);
+       } else {
+               cur_diff = 0;
+       }
        
        rtp_session->stats.inbound.jitter_addsq += (cur_diff * cur_diff);
        rtp_session->stats.inbound.last_proc_time = current_time;