Fix sender nil on negotiation check step 5.3.1

pion · Oct 20, 2020 · be1723b · be1723b
1 parent 7fc6f54
commit be1723b
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/peerconnection.go b/peerconnection.go
@@ -353,7 +353,7 @@ func (pc *PeerConnection) checkNegotiationNeeded() bool { //nolint:gocognit
 			// Step 5.3.1
 			if t.Direction() == RTPTransceiverDirectionSendrecv || t.Direction() == RTPTransceiverDirectionSendonly {
 				descMsid, okMsid := m.Attribute(sdp.AttrKeyMsid)
-				if !okMsid || descMsid != t.Sender().Track().Msid() {
+				if !okMsid || (t.Sender() != nil && descMsid != t.Sender().Track().Msid()) {
 					return true
 				}
 			}