def test_client():
global photos_list
global videos_list
app = create_app()
testing_client = app.test_client()
# Establish application context
ctx = app.app_context()
ctx.push()
file_saver = FileSaver(app.user_config)
# Start camera controller
while app.camera_controller.is_alive() is False:
app.camera_controller.start()
time.sleep(1)
# Take photos and record their filenames
for x in range(2):
timestamp = datetime.datetime.now().strftime('%Y-%m-%d-%H-%M-%S')
thumb = file_saver.save_thumb(app.camera_controller.get_md_image(),
timestamp, "photo")
filename = file_saver.save_image(
app.camera_controller.get_hires_image(), timestamp)
photos_list.append(filename)
photos_thumb_list.append(thumb)
time.sleep(1)
# Record videos and save their filenames.
app.camera_controller.start_video_stream()
for y in range(2):
timestamp = datetime.datetime.now().strftime('%Y-%m-%d-%H-%M-%S')
time.sleep(2)
thumb = file_saver.save_thumb(app.camera_controller.get_md_image(),
timestamp, "video")
app.camera_controller.wait_recording(2)
with app.camera_controller.get_video_stream().lock:
filename = file_saver.save_video(
app.camera_controller.get_video_stream(), timestamp)
videos_list.append(filename)
videos_thumb_list.append(thumb)
time.sleep(1)
yield testing_client
# Teardown
for f in photos_list:
os.remove(app.user_config["photos_path"] + f)
for f in videos_list:
os.remove(app.user_config["videos_path"] + f)
for f in photos_thumb_list:
os.remove(app.user_config["photos_path"] + f)
for f in videos_thumb_list:
os.remove(app.user_config["videos_path"] + f)
app.camera_controller.stop()
ctx.pop()
def test_client():
app = create_app()
testing_client = app.test_client()
# Establish application context
ctx = app.app_context()
ctx.push()
yield testing_client
app.camera_controller.stop()
ctx.pop()
def run_around_tests():
global file_saver
global app
app = create_app()
file_saver = FileSaver(app.user_config)
testing_client = app.test_client()
while app.camera_controller.is_alive() is False:
app.camera_controller.start()
time.sleep(1)
# Establish application context
ctx = app.app_context()
ctx.push()
yield testing_client
app.camera_controller.stop()
ctx.pop()
help='Port number to attach to')
args = parser.parse_args()
class CameraNotFoundException(Exception):
pass
def is_camera_enabled():
# inspired by https://stackoverflow.com/questions/58250817/raspberry-pi-camera-module-check-if-connected#comment102874971_58250817
vcgencmd_result = subprocess.run(['/opt/vc/bin/vcgencmd', 'get_camera'], stdout=subprocess.PIPE)
result_text = vcgencmd_result.stdout.decode('utf-8').strip()
properties = dict(pair.split('=') for pair in result_text.split(' '))
return properties['supported'] == '1'
if __name__ == '__main__':
try:
app = create_app()
app.camera_controller.start()
app.change_detector.start()
except Exception as e:
if isinstance(e, PiCameraError) and "Camera is not enabled" in str(e):
# This error message appears even if the camera _is_ enabled, but the camera is not found.
# e.g. due to a connection problem.
# We don't want to mislead users into messing with raspi-config, so check if the
# camera interface is really disabled.
if (is_camera_enabled()):
e = CameraNotFoundException("Unable to access camera. Is the cable properly connected?")
app = create_error_app(e)
app.run(debug=False, threaded=True, port=args.port, host='0.0.0.0')