Related to ticket #377: Fixed bug in RTCP fraction_lost calculation: the first RTCP packet incorrectly always shows positive fraction loss
git-svn-id: https://svn.pjsip.org/repos/pjproject/trunk@1445 74dad513-b988-da41-8d7b-12977e46ad98
diff --git a/pjmedia/src/pjmedia/rtcp.c b/pjmedia/src/pjmedia/rtcp.c
index f2f2e28..a4609b0 100644
--- a/pjmedia/src/pjmedia/rtcp.c
+++ b/pjmedia/src/pjmedia/rtcp.c
@@ -619,7 +619,10 @@
received_interval = sess->received - sess->rx_prior;
sess->rx_prior = sess->received;
- lost_interval = expected_interval - received_interval;
+ if (expected_interval >= received_interval)
+ lost_interval = expected_interval - received_interval;
+ else
+ lost_interval = 0;
if (expected_interval==0 || lost_interval == 0) {
rr->fract_lost = 0;