CameraCharacteristics Sınıfı

Giriş
android.hardware.camera2 paketindedir.
get metodu
Array Size
Şöyle yaparız.

Rect rect = characteristics.get(CameraCharacteristics.SENSOR_INFO_ACTIVE_ARRAY_SIZE);

Sensor Orientation
Şöyle yaparız.

public int getOrientation(final int cameraId) {
  try {
    String[] cameraIds = manager.getCameraIdList();
    CameraCharacteristics characteristics = manager.getCameraCharacteristics(
      cameraIds[cameraId]);
    return characteristics.get(CameraCharacteristics.SENSOR_ORIENTATION);
  } catch (CameraAccessException e) {
    ...
    return 0;
  }
}

Ön Kamera - Front Camera
Şöyle kontrol ederiz.

Integer facing = characteristics.get(CameraCharacteristics.LENS_FACING);
if (facing != null && facing == CameraCharacteristics.LENS_FACING_FRONT) {
...
}

Yüz Tespiti - Face Detection
Şöyle yaparız.

characteristics.get(CameraCharacteristics.STATISTICS_INFO_MAX_FACE_COUNT);
characteristics.get(CameraCharacteristics.STATISTICS_INFO_AVAILABLE_FACE_DETECT_MODES);