From 5b01fdff8ce6c367a8680166106a7cd277bdf27c Mon Sep 17 00:00:00 2001
From: Mathieu Duponchelle <mathieu@centricular.com>
Date: Thu, 24 Apr 2025 20:39:27 +0200
Subject: [PATCH] webrtcsink: don't send messages on not-yet-opened data
 channels

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-rs/-/merge_requests/2215>
---
 net/webrtc/src/webrtcsink/imp.rs | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/net/webrtc/src/webrtcsink/imp.rs b/net/webrtc/src/webrtcsink/imp.rs
index 9323c18ce..32fde80f1 100644
--- a/net/webrtc/src/webrtcsink/imp.rs
+++ b/net/webrtc/src/webrtcsink/imp.rs
@@ -2798,6 +2798,10 @@ impl BaseWebRTCSink {
         let session = session.0.lock().unwrap();
 
         if let Some(ref handler) = session.control_events_handler {
+            if handler.0 .1.ready_state() != gst_webrtc::WebRTCDataChannelState::Open {
+                return;
+            }
+
             for meta in utils::serialize_meta(buffer, &settings.forward_metas) {
                 match serde_json::to_string(&utils::InfoMessage {
                     mid: mid.to_owned(),