Fixed call to rtcSetLocalDescription()

src/capi.cpp

@@ -317,7 +317,7 @@ int rtcCreateDataChannel(int pc, const char *label) {
 int rtcCreateDataChannelExt(int pc, const char *label, const char *protocol,
                             const rtcReliability *reliability) {
 	int dc = rtcAddDataChannelExt(pc, label, protocol, reliability);
-	rtcSetLocalDescription(pc);
+	rtcSetLocalDescription(pc, NULL);
 	return dc;
 }
 

test/capi_track.cpp

@@ -156,7 +156,7 @@ int test_capi_track_main() {
 	rtcSetClosedCallback(peer1->tr, closedCallback);
 
 	// Initiate the handshake
-	rtcSetLocalDescription(peer1->pc);
+	rtcSetLocalDescription(peer1->pc, NULL);
 
 	attempts = 10;
 	while ((!peer2->connected || !peer1->connected) && attempts--)