From 7ee8f4539ea49a72564b90091482b0f76c7c8bf3 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Sebastian=20Dr=C3=B6ge?= <sebastian@centricular.com>
Date: Tue, 8 Jun 2021 11:40:14 +0300
Subject: webrtcbin: Store newly created transceivers when creating an answer
 also in the seen transceivers list

Otherwise it might be used a second time for another media afterwards.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/2310>
---
 ext/webrtc/gstwebrtcbin.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'ext')

diff --git a/ext/webrtc/gstwebrtcbin.c b/ext/webrtc/gstwebrtcbin.c
index 88702357c..351bddd6d 100644
--- a/ext/webrtc/gstwebrtcbin.c
+++ b/ext/webrtc/gstwebrtcbin.c
@@ -3710,8 +3710,6 @@ _create_answer_task (GstWebRTCBin * webrtc, const GstStructure * options,
         answer_dir = GST_WEBRTC_RTP_TRANSCEIVER_DIRECTION_RECVONLY;
       }
 
-      seen_transceivers = g_list_prepend (seen_transceivers, rtp_trans);
-
       if (!rtp_trans) {
         GstCaps *trans_caps;
 
@@ -3743,6 +3741,8 @@ _create_answer_task (GstWebRTCBin * webrtc, const GstStructure * options,
         trans = WEBRTC_TRANSCEIVER (rtp_trans);
       }
 
+      seen_transceivers = g_list_prepend (seen_transceivers, rtp_trans);
+
       if (gst_caps_is_empty (answer_caps)) {
         GST_WARNING_OBJECT (webrtc, "Could not create caps for media");
         gst_caps_unref (answer_caps);
-- 
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