code: package camera2_hidden_keys.mtk;
  
  import android.hardware.camera2.CaptureRequest;
  import android.os.Build;
  
  import androidx.annotation.RequiresApi;
  
  import camera2_hidden_keys.AbstractCaptureRequest;
  
  @RequiresApi(api = Build.VERSION_CODES.LOLLIPOP)
  public class CaptureRequestMtk extends AbstractCaptureRequest {
  
      public static final CaptureRequest.Key<Byte> CONTROL_CAPTURE_ISP_META_REQUEST;
      public static final byte CONTROL_CAPTURE_ISP_TUNING_DATA_BUFFER = 2;
      public static final byte CONTROL_CAPTURE_ISP_TUNING_DATA_IN_METADATA = 1;
      public static final byte CONTROL_CAPTURE_ISP_TUNING_DATA_NONE = 0;
      public static final byte CONTROL_CAPTURE_ISP_TUNING_REQ_RAW = 1;
      public static final byte CONTROL_CAPTURE_ISP_TUNING_REQ_YUV = 2;
  
      static {
  
          CONTROL_CAPTURE_ISP_META_REQUEST = getKeyType("com.mediatek.control.capture.ispTuningRequest", Byte.class);
      }
  }
  