commit 01294f0e298723dc9128fb6d45060f816f3034ac
author philipel <philipel@webrtc.org> Thu Nov 14 12:03:25 2019
committer Commit Bot <commit-bot@chromium.org> Thu Nov 14 13:12:50 2019
tree c6ebc87f6efc0dd798716f71d284812ebac4685e
parent bb0aac27e3ade19ca24814c934f0e6bd795493fa

Don't configure video codec switching if no video stream has been created.

Bug: none
Change-Id: I8e74fefed1e902c35064700f826b8f565e18c704
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/159800
Reviewed-by: Per Kjellander <perkj@webrtc.org>
Commit-Queue: Philip Eliasson <philipel@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#29798}

pc/peer_connection.cc

diff --git a/pc/peer_connection.cc b/pc/peer_connection.cc
index d09b9c5..ea3d8e2 100644
--- a/pc/peer_connection.cc
+++ b/pc/peer_connection.cc
@@ -4147,8 +4147,11 @@
   }
 
   if (modified_config.allow_codec_switching.has_value()) {
-    video_media_channel()->SetVideoCodecSwitchingEnabled(
-        *modified_config.allow_codec_switching);
+    cricket::VideoMediaChannel* video_channel = video_media_channel();
+    if (video_channel) {
+      video_channel->SetVideoCodecSwitchingEnabled(
+          *modified_config.allow_codec_switching);
+    }
   }
 
   configuration_ = modified_config;