From 4cf90aa8d963d9e65564f42de1ce8252f4ebed48 Mon Sep 17 00:00:00 2001
From: Thulinma <jaron@vietors.com>
Date: Wed, 3 Jan 2018 11:48:06 +0100
Subject: [PATCH] Fixed RTSP input VLC compatibility

---
 lib/sdp.cpp | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/lib/sdp.cpp b/lib/sdp.cpp
index 235ef6d3..f3bd7e13 100644
--- a/lib/sdp.cpp
+++ b/lib/sdp.cpp
@@ -208,8 +208,12 @@ namespace SDP{
       // A little more tricky: we need to find free ports and remember them.
       data.SetDestination(dest, 1337);
       rtcp.SetDestination(dest, 1337);
-      portA = data.bind(0);
-      portB = rtcp.bind(0);
+      portA = portB = 0;
+      int retries = 0;
+      while (portB != portA+1 && retries < 10){
+        portA = data.bind(0);
+        portB = rtcp.bind(portA+1);
+      }
       std::stringstream tStr;
       tStr << "RTP/AVP/UDP;unicast;client_port=" << portA << "-" << portB;
       return tStr.str();