From 2df7da85fee9693b35431fdda527b1e19ab14da4 Mon Sep 17 00:00:00 2001
From: Matthew Waters <matthew@centricular.com>
Date: Thu, 6 Dec 2018 16:59:52 +1100
Subject: [PATCH] webrtc: add support for intersecting inactive transceiver
 directions

---
 ext/webrtc/webrtcsdp.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/ext/webrtc/webrtcsdp.c b/ext/webrtc/webrtcsdp.c
index 715391ba22..cad0540b67 100644
--- a/ext/webrtc/webrtcsdp.c
+++ b/ext/webrtc/webrtcsdp.c
@@ -397,6 +397,8 @@ GstWebRTCRTPTransceiverDirection
 _intersect_answer_directions (GstWebRTCRTPTransceiverDirection offer,
     GstWebRTCRTPTransceiverDirection answer)
 {
+  if (offer == DIR (INACTIVE) || answer == DIR (INACTIVE))
+    return DIR (INACTIVE);
   if (offer == DIR (SENDONLY) && answer == DIR (SENDRECV))
     return DIR (RECVONLY);
   if (offer == DIR (SENDONLY) && answer == DIR (RECVONLY))
@@ -411,6 +413,10 @@ _intersect_answer_directions (GstWebRTCRTPTransceiverDirection offer,
     return DIR (SENDONLY);
   if (offer == DIR (SENDRECV) && answer == DIR (RECVONLY))
     return DIR (RECVONLY);
+  if (offer == DIR (RECVONLY) && answer == DIR (RECVONLY))
+    return DIR (INACTIVE);
+  if (offer == DIR (SENDONLY) && answer == DIR (SENDONLY))
+    return DIR (INACTIVE);
 
   return DIR (NONE);
 }