Merge branch 'voip/fix-issue-448' into 'main'

fix: fixed camera is still active after leaving the group call.

Closes famedly-web#448

See merge request famedly/company/frontend/famedlysdk!1069

lib/src/voip/call.dart

@@ -400,13 +400,16 @@ class CallSession {
   }
 
   Future<void> initWithInvite(CallType type, RTCSessionDescription offer,
-      SDPStreamMetadata? metadata, int lifetime) async {
+      SDPStreamMetadata? metadata, int lifetime, bool isGroupCall) async {
     await _preparePeerConnection();
 
+    /// only add local stream if it is not a group call.
+    if (!isGroupCall) {
       final stream = await _getUserMedia(type);
       if (stream != null) {
         addLocalStream(stream, SDPStreamMetadataPurpose.Usermedia);
       }
+    }
 
     if (metadata != null) {
       _updateRemoteSDPStreamMetadata(metadata);

lib/src/voip/voip.dart

@@ -197,7 +197,8 @@ class VoIP {
       content['offer']['type'],
     );
     await newCall
-        .initWithInvite(callType, offer, sdpStreamMetadata, lifetime)
+        .initWithInvite(
+            callType, offer, sdpStreamMetadata, lifetime, confId != null)
         .then((_) {
       // Popup CallingPage for incoming call.
       if (!delegate.isBackgroud && confId == null) {