toConstraints method

Map<String, dynamic> toConstraints()

Implementation

Map<String, dynamic> toConstraints() {
  final constraints = <String, dynamic>{};
  if (echoCancellation != null) {
    constraints['echoCancellation'] = echoCancellation;
  }
  if (noiseSuppression != null) {
    constraints['noiseSuppression'] = noiseSuppression;
  }
  if (autoGainControl != null) {
    constraints['autoGainControl'] = autoGainControl;
  }
  if (deviceId != null) constraints['deviceId'] = deviceId;
  return constraints.isEmpty ? {'optional': []} : constraints;
}