def setCamera(self, cameraDevice):
if cameraDevice.isEmpty():
self.camera = QCamera()
else:
self.camera = QCamera(cameraDevice)
self.captureAction.setEnabled(True)
def setCamera(self, cameraDevice):
if cameraDevice.isEmpty():
self.camera = QCamera()
else:
self.camera = QCamera(cameraDevice)
self.camera.setViewfinder(self.viewfinder)
self.camera.start()
def __init__(self, *args, camera_info=None):
super(CameraInterface, self).__init__(*args)
# 定义相机实例对象并设置捕获模式
if camera_info:
self.mCamera = QCamera(camera_info)
else:
self.mCamera = QCamera()
self.mCamera.setCaptureMode(QCamera.CaptureViewfinder)
self.mDisplayWidth = 800
self.mDisplayHeight = 600
self.mRate = 10
# 设置取景器分辨率
self.setDisplaySize(self.mDisplayWidth, self.mDisplayHeight)
self.setRate(self.mRate)
# 初始化取景器
self.mViewCamera = QtMultimediaWidgets.QCameraViewfinder(self)
self.mViewCamera.show()
self.mCamera.setViewfinder(self.mViewCamera)
self.mCamera.setCaptureMode(QCamera.CaptureStillImage)
# 设置图像捕获
self.mCapture = QCameraImageCapture(self.mCamera)
if self.mCapture.isCaptureDestinationSupported(
QCameraImageCapture.CaptureToBuffer):
self.mCapture.setCaptureDestination(
QCameraImageCapture.CaptureToBuffer) # CaptureToBuffer
# self.mCapture.error.connect(lambda i, e, s: self.alert(s))
self.mCapture.imageAvailable.connect(self.readFrame)
self.mTimerImageGrab = QTimer(self)
self.mTimerImageGrab.timeout.connect(self.timerImgGrab)
def __initCamera(self):
camInfo = QCameraInfo.defaultCamera()
self.camera = QCamera(camInfo)
self.camera2 = QCamera(camInfo)
self.camera.setViewfinder(self._ui.widget)
self.camera2.setViewfinder(self._ui.widget_2)
self.camera.setCaptureMode(
QCamera.CaptureStillImage) #captureviewfinder
self.camera2.setCaptureMode(QCamera.CaptureStillImage)
def setCamera(self, cameraDevice):
try:
if cameraDevice.isEmpty():
self.camera = QCamera()
else:
self.camera = QCamera(cameraDevice)
self.camera.stateChanged.connect(self.updateCameraState)
self.camera.error.connect(self.displayCameraError)
self.mediaRecorder = QMediaRecorder(self.camera)
self.mediaRecorder.stateChanged.connect(self.updateRecorderState)
self.imageCapture = QCameraImageCapture(self.camera)
self.mediaRecorder.durationChanged.connect(self.updateRecordTime)
self.mediaRecorder.error.connect(self.displayRecorderError)
self.mediaRecorder.setMetaData(QMediaMetaData.Title,
"Camera Widget")
self.ui.exposureCompensation.valueChanged.connect(
self.setExposureCompensation)
self.camera.setViewfinder(self.ui.viewfinder)
self.updateCameraState(self.camera.state())
self.updateLockStatus(self.camera.lockStatus(),
QCamera.UserRequest)
self.updateRecorderState(self.mediaRecorder.state())
self.imageCapture.readyForCaptureChanged.connect(
self.readyForCapture)
self.imageCapture.imageCaptured.connect(self.processCapturedImage)
self.imageCapture.imageSaved.connect(self.imageSaved)
self.camera.lockStatusChanged.connect(self.updateLockStatus)
self.ui.captureWidget.setTabEnabled(
0,
self.camera.isCaptureModeSupported(QCamera.CaptureStillImage))
self.ui.captureWidget.setTabEnabled(
1, self.camera.isCaptureModeSupported(QCamera.CaptureVideo))
self.updateCaptureMode()
self.camera.start()
except:
pass
def load_cam(self):
self.cam_page.setLayout(self.cam_page_lay)
self.error_cam.hide()
self.camera = QCameraInfo.defaultCamera()
# Проверяем, что камера сущетсвует
# Если нет, то переключаемся на вторую вкладку
if self.camera.isNull():
dialog = QErrorMessage()
dialog.setWindowTitle('Warning')
dialog.showMessage(
'Not enough cameras, the app will only be available in drawing mode'
)
dialog.exec()
self.error_cam.show()
self.cam_page.setEnabled(False)
self.tabWidget.setCurrentIndex(1)
# Если да, то на первую
else:
self.tabWidget.setCurrentIndex(0)
self.camera = QCamera(self.camera)
self.view_cam = QCameraViewfinder(self)
self.view_cam.setMediaObject(self.camera)
self.view_cam.setAutoFillBackground(True)
self.camera.setViewfinder(self.view_cam)
self.box_lay = QVBoxLayout(self)
self.box_lay.addWidget(self.view_cam)
self.scrolling.setLayout(self.box_lay)
# Запускаем камеру
self.camera.start()
# Подвязываем кнопку к слоту со снимком
self.bt_cam.clicked.connect(self.make_ph)
# Можно зумить фотографию
self.zoom.valueChanged.connect(self.zoom_pict)
def setupCamera(self, cam_name):
"""
Create and setup camera functions.
"""
for camera in self.cameras:
# Select camera by matching cam_name to one of the
# devices in the cameras list.
if camera.deviceName() == cam_name:
self.cam = QCamera(camera) # Construct QCamera device
# Create camera viewfinder widget and add it to the
# view_finder_window.
self.view_finder = QCameraViewfinder()
self.view_finder_window.setWidget(self.view_finder)
self.view_finder.show()
# Sets the view finder to display video
self.cam.setViewfinder(self.view_finder)
# QCameraImageCapture() is used for taking
# images or recordings.
self.image_capture = QCameraImageCapture(self.cam)
# Configure the camera to capture still images.
self.cam.setCaptureMode(QCamera.CaptureStillImage)
self.cam.start() # Slot to start the camera
else:
pass
def start_ui(self):
self.zui = Ui_zwin()
self.zui.setupUi(self)
self.zui.camera_label.setScaledContents(True)
# 初始化信息
self.zui.label_xuehao.setText("工号：")
self.zui.label_mingzi.setText("姓名：")
self.zui.label_time.setText("签到时间：")
# 查询按钮
self.zui.cxbtn.clicked.connect(self.cx_ui)
# 注册按钮
self.zui.zcbtn.clicked.connect(self.zq_zc)
# 签到按钮
self.zui.qdbtn.clicked.connect(self.zq_qd)
# 删除按钮
self.zui.del_btn.clicked.connect(self.del_yg)
# 导出按钮
self.zui.out_btn.clicked.connect(self.out_ex)
# 摄像头控制
camera = QCamera(self) # 创建摄像头
cameraviewfinder = QCameraViewfinder(self.zui.camera_label) # 创建显示窗口
cameraviewfinder.resize(752, 420)
self.cameraImageCapture = QCameraImageCapture(camera) # 绑定获取的摄像头
self.cameraImageCapture.setCaptureDestination(
QCameraImageCapture.CaptureToFile) # 获取数据类型
camera.setCaptureMode(QCamera.CaptureStillImage)
camera.setViewfinder(cameraviewfinder) # 绑定窗口
camera.start() # 开启摄像头
def __init__(self):
super(CameraMainWin, self).__init__()
self.setupUi(self)
#定义相机实例对象并设置捕获模式
self.camera = QCamera()
self.camera.setCaptureMode(QCamera.CaptureViewfinder)
self.cameraOpened = False # 设置相机打开状态为未打开
#设置取景器分辨率
viewFinderSettings = QCameraViewfinderSettings()
viewFinderSettings.setResolution(800, 600)
self.camera.setViewfinderSettings(viewFinderSettings)
#初始化取景器
self.viewCamera = QtMultimediaWidgets.QCameraViewfinder(self)
self.camera.setViewfinder(self.viewCamera)
self.camera.setCaptureMode(QCamera.CaptureStillImage)
self.camerLayout.addWidget(self.viewCamera) #取景器放置到预留的布局中
#设置图像捕获
self.capture = QCameraImageCapture(self.camera)
self.capture.setCaptureDestination(
QCameraImageCapture.CaptureToBuffer) #CaptureToBuffer
self.switchCamera: QPushButton
self.switchCamera.clicked.connect(self.SwitchCamera)
self.takePic.clicked.connect(self.TakePic)
self.capture.error.connect(lambda i, e, s: self.alert(s))
self.capture.imageAvailable.connect(self.saveImage)
self.capture.imageCaptured.connect(
lambda d, i: self.status.showMessage("Image %04d captured" % self.
save_seq))
def __iniCamera(self): ##创建 QCamera对象
camInfo = QCameraInfo.defaultCamera() #获取缺省摄像头,QCameraInfo
self.ui.comboCamera.addItem(camInfo.description()) #摄像头描述
self.ui.comboCamera.setCurrentIndex(0)
self.camera = QCamera(camInfo) #创建摄像头对象
self.camera.setViewfinder(self.ui.viewFinder) #设置取景框预览
## camera.setCaptureMode(QCamera.CaptureViewfinder) #预览
self.camera.setCaptureMode(QCamera.CaptureStillImage) #设置为抓图
## camera.setCaptureMode(QCamera.CaptureVideo)
mode = QCamera.CaptureStillImage
supported = self.camera.isCaptureModeSupported(mode)
self.ui.checkStillImage.setChecked(supported) #支持拍照
supported = self.camera.isCaptureModeSupported(QCamera.CaptureVideo)
self.ui.checkVideo.setChecked(supported) #支持视频录制
supported = self.camera.exposure().isAvailable()
self.ui.checkExposure.setChecked(supported) #支持曝光补偿
supported = self.camera.focus().isAvailable()
self.ui.checkFocus.setChecked(supported) #支持变焦
self.camera.stateChanged.connect(self.do_cameraStateChanged)
def select_camera(self, i):
"""Starts the selected camera. If "Choose webcam" is selected, it stops the camera.
Parameters
----------
i:
Index of the chosen camera.
"""
self.Label_Bild.image = logo_with_text
self.Label_Bild.setPixmap(QPixmap(self.Label_Bild.image))
if i == 0:
self.camera.stop()
self.detector.disable_detection()
self.Button_Detection.setText(
QCoreApplication.translate(WINDOW, START))
self.stacked_widget.setCurrentIndex(0)
self.camera_viewfinder.hide()
self.Label_Bild.show()
time.sleep(2)
self.Label_Bild.image = logo_with_text
self.Label_Bild.setPixmap(QPixmap(self.Label_Bild.image))
self.Label_Bild.setStyleSheet("""
""")
else:
self.camera_viewfinder.show()
self.stacked_widget.setCurrentIndex(1)
self.Label_Bild.hide()
self.camera = QCamera(self.available_cameras[i - 1])
self.camera.setViewfinder(self.camera_viewfinder)
self.camera.error.connect(
lambda: self.alert(self.camera.errorString()))
self.camera.start()
self.Button_Bild.setText(QCoreApplication.translate(
WINDOW, ENABLE))
def create_camera(cameras: list, index: int, viewfinder: QCameraViewfinder,
error: Callable) -> QCamera:
camera = QCamera(cameras[index])
camera.setViewfinder(viewfinder)
camera.setCaptureMode(QCamera.CaptureStillImage)
camera.error.connect(error)
return camera
def __init__(self):
QMainWindow.__init__(self)
if len(QCameraInfo.availableCameras()) == 0:
QMessageBox.warning(
self, 'Camera not found',
'You don\'t have any cameras on your computer so you can\'t use this app...\nBuy a new camera (╯°^°)╯┻━┻',
QMessageBox.Ok)
exit(-1)
self.central_widget = QWidget(self)
self.main_grid = QGridLayout(self.central_widget)
self.option_group = QGroupBox(None)
self.group_grid = QGridLayout(self.option_group)
self.addr_msg = QLabel('Database addr')
self.camera_msg = QLabel('Camera')
self.camera_combo = QComboBox()
self.addr_edit = QLineEdit()
self.camera_place = QGroupBox(None)
self.auth_btn = QPushButton('Log in')
self.camera_grid = QGridLayout(self.camera_place)
self.camera_widget = QCameraViewfinder()
self.camera_obj = QCamera(QCameraInfo.defaultCamera())
self.veg_cfg = Config()
def cameraCheck(**kwargs):
check_status = False
if kwargs['operating_mode']['cam_path_used'] == '1':
camera_user = kwargs['cam_user']['cam_path']
camera_item = kwargs['cam_item']['cam_path']
else:
camera_user = int(kwargs['cam_user']['cam_num'])
camera_item = int(kwargs['cam_item']['cam_num'])
camera_device = QCamera(
) # You have to declare QCamera object before using QCameraInfo.availableCameras()
camera_list = QCameraInfo.availableCameras()
# print(camera_list) # the result is like [<PyQt5.QtMultimedia.QCameraInfo object at 0x0000029C36641828>, <PyQt5.QtMultimedia.QCameraInfo object at 0x0000029C36641898>]
if len(camera_list) < 2:
# print('Camera problem happens!')
sys.exit('Camera problem: available cameras are not enough!'
) # sys.exit just throws an exception.
else:
# try to use cameras to see whether there is some unknown issues.
cap0 = cv2.VideoCapture(camera_item)
cap1 = cv2.VideoCapture(camera_user)
ret0, frame0 = cap0.read()
ret1, frame1 = cap1.read()
cap0.release()
cap1.release()
if not (ret0 and ret1):
sys.exit(
'Camera problem: frame cannot be read successfully. Please take them off and then plugs them in.'
)
check_status = True
return check_status
def __init__(self, parent=QObject()):
super(Camera, self).__init__(parent)
# chooses the system default camera
self.cam = QCamera()
self.caminfo = QCameraInfo(self.cam)
self.camvfind = QCameraViewfinder()
self.camvfindset = QCameraViewfinderSettings()
self.recorder = QMediaRecorder(self.cam)
def showCamera(self):
self.finder = QCameraViewfinder()
self.finder.show()
self.camera = QCamera()
self.camera.setViewfinder(self.finder)
self.camera.start()
self.camera.stop()
def setup_camera(self):
camera_device = QByteArray()
for device in QCamera.availableDevices():
if camera_device.isEmpty():
camera_device = device
if camera_device.isEmpty():
self.camera = QCamera()
else:
self.camera = QCamera(camera_device)
self.image_capture = QCameraImageCapture(self.camera)
self.image_capture.readyForCaptureChanged.connect(self.ready_for_capture)
self.image_capture.imageCaptured.connect(self.process_captured_image)
self.image_capture.imageSaved.connect(self.image_saved)
self.camera.setViewfinder(self.ui.viewFinder)
self.camera.start()
def start_preview(self, i_cam_idx):
if self.oc_camera is not None:
self.oc_camera.stop()
del self.oc_camera
self.oc_camera = QCamera(self.l_cameras[i_cam_idx])
self.oc_camera.setViewfinder(self.oc_viewfinder)
self.oc_camera.setCaptureMode(QCamera.CaptureVideo)
self.oc_camera.error.connect(lambda: self.show_error(self.oc_camera.errorString()))
self.oc_camera.start()
def __init__(self):
super(self.__class__, self).__init__()
self.setupUi(self) # gets defined in the UI file
# th = CamThread(self)
# th.changePixmap.connect(self.setImagae)
# th.start()
self.cam = QCamera()
self.cam.setViewfinder(self.widget)
self.cam.start()
def setupUi(self):
"""
设置UI界面
:return:
"""
self.resize(600, 600)
m_camer = QCamera()
m_ImageCapture = QCameraImageCapture(m_camer)
m_camerinfo = QCameraInfo()
def __init__(self, parent = QObject()):
super(Camera, self).__init__(parent)
print("3")
self.cam = QCamera(QCameraInfo.defaultCamera()) #"/dev/video0".encode()
print("4")
self.caminfo = QCameraInfo(self.cam)
self.camvfind = QCameraViewfinder()
self.camvfindset = QCameraViewfinderSettings()
self.cammode = self.cam.CaptureMode(0)
self.camimgcap = QCameraImageCapture(self.cam)
def __init__(self):
"""
初始化
:return: null
"""
# 超类初始化
super().__init__()
# UI初始化
self.ui = Ui_mainWidget()
self.ui.setupUi(self)
self.grabKeyboard()
self.setMouseTracking(True)
self.setWindowFlags(Qt.FramelessWindowHint)
self.setWindowIcon(QIcon('OCR.ico'))
# 初始化相机
self.camera = QCamera()
self.imageCapture = QCameraImageCapture(self.camera)
self.viewsetting = QCameraViewfinderSettings()
self.initimplement()
# 初始化标题栏
self.initTitleBar()
# 初始化系统托盘
self.tray = QSystemTrayIcon()
self.tray.setIcon(QIcon('OCR.ico'))
self.initTray()
# OCR识别部分
self.OCR = ocr()
self.OCR.setappid('1257206643')
self.OCR.setsecretid('AKIDFTddWEg9Ncsz0sE7oOpBNOExdDdeCUJ3')
self.OCR.setsecretkey('FQitsgUND8yfrZK0RrBMOJB5tWhCm5Ol')
# 初始化登录部分
self.logWidget = QWidget()
self.logui = Ui_Form()
self.logui.setupUi(self.logWidget)
self.logWidget.setWindowFlags(Qt.FramelessWindowHint)
self.logWidget.setWindowModality(Qt.ApplicationModal)
self.logui.close_btn.clicked.connect(self.logWidget.close)
# 初始化变量
self.mousePressd = False
self.mousePoint = None
self.result = {}
self.isFirst = False
self.ocrType = ocrType.ocr_general # 默认为印刷体识别
# 初始化字定义信号连接
self.processFinished.connect(self.updateOCRInfo)
self.ui.btn_login.clicked.connect(self.logWidget.show)
self.ui.comboBox_choose.currentIndexChanged.connect(self.changeocrType)
def __init__(self,parent = None): super(QCameraImageCapture, self).__init__(None,parent) self.camera = QCamera() self.camera.setCaptureMode(QCamera.CaptureStillImage); self.setMediaObject(self.camera) # self.setCaptureDestination(QCameraImageCapture.CaptureToFile) self.imageSaved.connect(self._captureComplete) self.imageCaptured.connect(self._imageCaptured)
def __init__(self):
super(MainWindow, self).__init__()
self.cameraInfo = QCameraInfo.defaultCamera()
self.camera = QCamera(self.cameraInfo)
self.camera.setCaptureMode(QCamera.CaptureStillImage)
self.imageCapture = QCameraImageCapture(self.camera)
self.imageCapture.imageCaptured.connect(self.imageCaptured)
self.imageCapture.imageSaved.connect(self.imageSaved)
self.currentPreview = QImage()
toolBar = QToolBar()
self.addToolBar(toolBar)
fileMenu = self.menuBar().addMenu("&File")
shutterIcon = QIcon("/Users/thethelafaltein/PycharmProjects/ResNetApplication/res/img/shutter.svg")
self.takePictureAction = QAction(shutterIcon, "&Take Picture", self,
shortcut="Ctrl+T",
triggered=self.takePicture)
self.takePictureAction.setToolTip("Take Picture")
fileMenu.addAction(self.takePictureAction)
toolBar.addAction(self.takePictureAction)
exitAction = QAction(QIcon.fromTheme("application-exit"), "E&xit",
self, shortcut="Ctrl+Q", triggered=self.close)
fileMenu.addAction(exitAction)
aboutMenu = self.menuBar().addMenu("&About")
aboutQtAction = QAction("About &Qt", self, triggered=qApp.aboutQt)
aboutMenu.addAction(aboutQtAction)
self.tabWidget = QTabWidget()
self.setCentralWidget(self.tabWidget)
self.cameraViewfinder = QCameraViewfinder()
self.camera.setViewfinder(self.cameraViewfinder)
self.tabWidget.addTab(self.cameraViewfinder, "Viewfinder")
if self.camera.status() != QCamera.UnavailableStatus:
name = self.cameraInfo.description()
self.setWindowTitle("PySide2 Camera Example (" + name + ")")
self.statusBar().showMessage("Starting: '" + name + "'", 5000)
self.camera.start()
else:
self.setWindowTitle("Object classifier")
self.takePictureAction.setEnabled(False)
self.statusBar().showMessage("Camera unavailable", 5000)
def iniCamera(self):
cameras = QCameraInfo.availableCameras()
for cameraInfo in cameras:
# select the capturing device if it is available
if (cameraInfo.description().find("Capture") is not -1):
self.cam = QCamera(cameraInfo)
self.caminfo = QCameraInfo(self.cam)
self.recorder = QMediaRecorder(self.cam)
print("Camera Chosen: " + self.caminfo.description())
print(self.cam.supportedViewfinderFrameRateRanges())
if self.cam.isCaptureModeSupported(QCamera.CaptureVideo):
print("Capturemode supported")
def __init__(self, parent=None):
super(VideoWindow, self).__init__(parent)
self.setWindowTitle(
"PyQt Video Player Widget Example - pythonprogramminglanguage.com")
self.mediaPlayer = QMediaPlayer(None, QMediaPlayer.VideoSurface)
self.camera = QCamera(0)
self.cameraviewfinder = QCameraViewfinder()
self.cameramode = self.camera.CaptureMode(2)
self.cameraimgcap = QCameraImageCapture(self.camera)
videoWidget = QVideoWidget()
self.imageView = QLabel("add a image file")
self.imageView.setAlignment(Qt.AlignCenter)
self.playButton = QPushButton()
self.playButton.setEnabled(True)
self.playButton.setIcon(self.style().standardIcon(QStyle.SP_MediaPlay))
self.playButton.clicked.connect(self.play)
self.positionSlider = QSlider(Qt.Horizontal)
self.positionSlider.setRange(0, 0)
self.scene1 = QGraphicsScene()
self.view1 = QGraphicsView(self.scene1)
# Create new action
# Create exit action
# Create a widget for window contents
wid = QWidget(self)
self.setCentralWidget(wid)
# Create layouts to place inside widget
# controlLayout = QHBoxLayout()
# controlLayout.setContentsMargins(0, 0, 0, 0)
# controlLayout.addWidget(self.playButton)
# controlLayout.addWidget(self.positionSlider)
videolayout = QVBoxLayout()
videolayout.addWidget(videoWidget)
# videolayout.addLayout(controlLayout)
# Set widget to contain window contents
layout = QHBoxLayout()
layout.addLayout(videolayout)
layout.addWidget(self.cameraviewfinder)
# layout.addWidget(self.view1)
wid.setLayout(layout)
self.mediaPlayer.setVideoOutput(videoWidget)
self.cameraviewfinder.show()
self.camera.setViewfinder(self.cameraviewfinder)
def __fetch_cam(self):
for device_obj in QCamera.availableDevices():
cam_name = QCamera.deviceDescription(device_obj)
cam = QCamera(device_obj)
self.cams[str(cam_name)] = cam
cam_image_capture = QCameraImageCapture(cam)
cam_image_capture.setEncodingSettings(QImageEncoderSettings())
cam_image_capture.captureDestination()
cam_image_capture.imageSaved.connect(self.on_image_saved)
self.__cam_image_captures[str(cam_name)] = cam_image_capture
cam.statusChanged.connect(self.set_resolution)
def start(self, dev=1):
if self.camera:
self.camera.stop()
cameras = QCameraInfo.availableCameras()
self.camera = QCamera(cameras[dev])
self.camera.setViewfinder(self.viewfinder)
self.camera.setCaptureMode(QCamera.CaptureStillImage)
self.camera.start()
self.camera_capture = QCameraImageCapture(self.camera)
self.camera_capture.setCaptureDestination(
QCameraImageCapture.CaptureToBuffer)
self.camera_capture.imageCaptured.connect(self.imageCaptured)
def setCamara(self, dispositivoCamara):
if dispositivoCamara.isEmpty():
self.camara = QCamera()
else:
self.camara = QCamera(dispositivoCamara)
self.camara.stateChanged.connect(self.actualizarEstadoCamara)
self.capturaImagen = QCameraImageCapture(self.camara)
self.camara.setViewfinder(self.visor)
self.actualizarEstadoCamara(self.camara.state())
self.capturaImagen.imageCaptured.connect(self.procesarImagenCapturada)
self.capturaImagen.imageSaved.connect(self.imagenGuardada)
self.camara.isCaptureModeSupported(QCamera.CaptureStillImage)
self.camara.start()
self.paginaVisor.update()
def setup_camera(self):
camera_device = QByteArray()
video_devices_group = QActionGroup(self)
video_devices_group.setExclusive(True)
for device in QCamera.availableDevices():
description = QCamera.deviceDescription(device)
video_device_action = QAction(description, video_devices_group)
video_device_action.setCheckable(True)
video_device_action.setData(device)
if camera_device.isEmpty():
camera_device = device
video_device_action.setChecked(True)
self.ui.menuDevices.addAction(video_device_action)
if camera_device.isEmpty():
self.camera = QCamera()
else:
self.camera = QCamera(camera_device)
self.camera.setViewfinder(self.ui.cameraViewFinder)
