toConstraints method

Map<String, dynamic> toConstraints()

Implementation

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