upgradeToVideo method
Upgrade call from audio only to audio+video
Implementation
Future<void> upgradeToVideo()async {
_logs?.print('Upgrade callId:$myCallId to audio+video');
try{
await SiprixVoipSdk().upgradeToVideo(myCallId);
notifyListeners();
} on PlatformException catch (err) {
_logs?.print('Can\'t upgrade callId:$myCallId Err: ${err.code} ${err.message}');
return Future.error((err.message==null) ? err.code : err.message!);
}
}