From b2f436deaedb41323ce308cdab23a7a5c7772b53 Mon Sep 17 00:00:00 2001
From: "Alfred E. Heggestad" <aeh@db.org>
Date: Sat, 31 Aug 2013 08:41:16 +0000
Subject: [PATCH] patch: (s)rtp sequence fix

increase robustness during initial packetloss, ref:

    http://tools.ietf.org/html/rfc4568#section-6.4 (last paragraph)
    http://tools.ietf.org/html/rfc3711#section-3.3.1
---
 src/rtp/rtp.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/rtp/rtp.c b/src/rtp/rtp.c
index eaaddfc..e5ff272 100644
--- a/src/rtp/rtp.c
+++ b/src/rtp/rtp.c
@@ -274,7 +274,7 @@ int rtp_alloc(struct rtp_sock **rsp)
 
 	sa_init(&rs->rtcp_peer, AF_UNSPEC);
 
-	rs->enc.seq  = rand_u16();
+	rs->enc.seq  = rand_u16() & 0x7fff;
 	rs->enc.ssrc = rand_u32();
 
 	*rsp = rs;