def _set_annotate_foreground(self, value):
self._check_camera_open()
if not isinstance(value, Color):
raise PiCameraValueError(
'annotate_foreground must be a Color')
elif self._camera.annotate_rev < 3:
if value.rgb_bytes != (255, 255, 255):
warnings.warn(
PiCameraFallback(
"Firmware does not support setting a custom foreground "
"annotation color; using white instead"))
return
mp = self._camera.control.params[mmal.MMAL_PARAMETER_ANNOTATE]
mp.custom_text_color = True
(
mp.custom_text_Y,
mp.custom_text_U,
mp.custom_text_V,
) = value.yuv_bytes
self._camera.control.params[mmal.MMAL_PARAMETER_ANNOTATE] = mp
python类Color()的实例源码
def _get_annotate_background(self):
self._check_camera_open()
mp = self._camera.control.params[mmal.MMAL_PARAMETER_ANNOTATE]
if self._camera.annotate_rev == 3:
if mp.enable_text_background:
if mp.custom_background_color:
return Color.from_yuv_bytes(
mp.custom_background_Y,
mp.custom_background_U,
mp.custom_background_V)
else:
return Color('black')
else:
return None
else:
if mp.black_text_background:
return Color('black')
else:
return None
def _get_annotate_background(self):
self._check_camera_open()
mp = self._get_annotate_settings()
if self._annotate_v3:
if mp.enable_text_background:
if mp.custom_background_color:
return Color.from_yuv_bytes(
mp.custom_background_Y,
mp.custom_background_U,
mp.custom_background_V)
else:
return Color('black')
else:
return None
else:
if mp.black_text_background:
return Color('black')
else:
return None
def _set_annotate_foreground(self, value):
self._check_camera_open()
if not isinstance(value, Color):
raise PiCameraValueError(
'annotate_foreground must be a Color')
elif self._camera.annotate_rev < 3:
if value.rgb_bytes != (255, 255, 255):
warnings.warn(
PiCameraFallback(
"Firmware does not support setting a custom foreground "
"annotation color; using white instead"))
return
mp = self._camera.control.params[mmal.MMAL_PARAMETER_ANNOTATE]
mp.custom_text_color = True
(
mp.custom_text_Y,
mp.custom_text_U,
mp.custom_text_V,
) = value.yuv_bytes
self._camera.control.params[mmal.MMAL_PARAMETER_ANNOTATE] = mp
def _get_annotate_background(self):
self._check_camera_open()
mp = self._camera.control.params[mmal.MMAL_PARAMETER_ANNOTATE]
if self._camera.annotate_rev == 3:
if mp.enable_text_background:
if mp.custom_background_color:
return Color.from_yuv_bytes(
mp.custom_background_Y,
mp.custom_background_U,
mp.custom_background_V)
else:
return Color('black')
else:
return None
else:
if mp.black_text_background:
return Color('black')
else:
return None
def _set_annotate_foreground(self, value):
self._check_camera_open()
if not isinstance(value, Color):
raise PiCameraValueError(
'annotate_foreground must be a Color')
elif not self._annotate_v3:
if value.rgb_bytes != (255, 255, 255):
warnings.warn(
PiCameraFallback(
"Firmware does not support setting a custom foreground "
"annotation color; using white instead"))
return
mp = self._get_annotate_settings()
mp.custom_text_color = True
(
mp.custom_text_Y,
mp.custom_text_U,
mp.custom_text_V,
) = value.yuv_bytes
mmal_check(
mmal.mmal_port_parameter_set(self._camera[0].control, mp.hdr),
prefix="Failed to set annotation foreground")
def _get_annotate_background(self):
self._check_camera_open()
mp = self._get_annotate_settings()
if self._annotate_v3:
if mp.enable_text_background:
if mp.custom_background_color:
return Color.from_yuv_bytes(
mp.custom_background_Y,
mp.custom_background_U,
mp.custom_background_V)
else:
return Color('black')
else:
return None
else:
if mp.black_text_background:
return Color('black')
else:
return None
def take_picture(self, photoDir, overlayMessage=None):
logging.debug('taking a picture')
if not os.path.exists(photoDir):
os.makedirs(photoDir)
fileName = ('{}_gd_photo.jpg'.format(datetime.datetime.now().strftime("%H%M%S")))
file = ('{}/{}'.format(photoDir, fileName))
overlay = datetime.datetime.now().strftime('%Y-%m-%d %H:%M:%S')
if overlayMessage is not None:
overlay += (' {}'.format(overlayMessage))
camera = picamera.PiCamera()
try:
camera.resolution = (1024, 768)
camera.rotation = 90
camera.annotate_background = picamera.Color('black')
camera.annotate_text = overlay
camera.capture(file)
finally:
camera.close()
return file
def _get_annotate_foreground(self):
self._check_camera_open()
mp = self._camera.control.params[mmal.MMAL_PARAMETER_ANNOTATE]
if self._camera.annotate_rev == 3 and mp.custom_text_color:
return Color.from_yuv_bytes(
mp.custom_text_Y,
mp.custom_text_U,
mp.custom_text_V)
else:
return Color('white')
def _get_annotate_foreground(self):
self._check_camera_open()
mp = self._get_annotate_settings()
if self._annotate_v3 and mp.custom_text_color:
return Color.from_yuv_bytes(
mp.custom_text_Y,
mp.custom_text_U,
mp.custom_text_V)
else:
return Color('white')
def _get_annotate_foreground(self):
self._check_camera_open()
mp = self._camera.control.params[mmal.MMAL_PARAMETER_ANNOTATE]
if self._camera.annotate_rev == 3 and mp.custom_text_color:
return Color.from_yuv_bytes(
mp.custom_text_Y,
mp.custom_text_U,
mp.custom_text_V)
else:
return Color('white')
def _get_annotate_foreground(self):
self._check_camera_open()
mp = self._get_annotate_settings()
if self._annotate_v3 and mp.custom_text_color:
return Color.from_yuv_bytes(
mp.custom_text_Y,
mp.custom_text_U,
mp.custom_text_V)
else:
return Color('white')
def _set_annotate_background(self, value):
self._check_camera_open()
if value is True:
warnings.warn(
PiCameraDeprecated(
'Setting PiCamera.annotate_background to True is '
'deprecated; use PiCamera.color.Color("black") instead'))
value = Color('black')
elif value is False:
warnings.warn(
PiCameraDeprecated(
'Setting PiCamera.annotate_background to False is '
'deprecated; use None instead'))
value = None
elif value is None:
pass
elif not isinstance(value, Color):
raise PiCameraValueError(
'annotate_background must be a Color or None')
elif not self._annotate_v3 and value.rgb_bytes != (0, 0, 0):
warnings.warn(
PiCameraFallback(
"Firmware does not support setting a custom background "
"annotation color; using black instead"))
mp = self._get_annotate_settings()
if self._annotate_v3:
if value is None:
mp.enable_text_background = False
else:
mp.enable_text_background = True
mp.custom_background_color = True
(
mp.custom_background_Y,
mp.custom_background_U,
mp.custom_background_V,
) = value.yuv_bytes
else:
if value is None:
mp.black_text_background = False
else:
mp.black_text_background = True
mmal_check(
mmal.mmal_port_parameter_set(self._camera[0].control, mp.hdr),
prefix="Failed to set annotation background")
def RunCamera(argv, killer):
time_len = int(argv[1])
segment_len = int(argv[2])
with picamera.PiCamera() as camera:
camera.resolution = (1360, 768)
camera.framerate = 24
camera.brightness = 60
camera.contrast = 20
camera.sharpness = 20
camera.annotate_foreground = picamera.Color('black')
camera.annotate_background = picamera.Color('white')
camera.annotate_text = dt.datetime.now().strftime('%Y-%m-%d %H:%M:%S')
camera.annotate_text_size = 22
zero = dt.datetime.now()
while (dt.datetime.now() - zero).seconds <= time_len:
start = dt.datetime.now()
file_name = start.strftime('/home/pi/camera/%Y%m%d-%H%M%S.h264')
print 'Record: ' + file_name
camera.start_recording(file_name, bitrate=4500000)
now = dt.datetime.now()
while ((now - start).seconds <= segment_len) and ((now - zero).seconds <= time_len):
camera.annotate_text = dt.datetime.now().strftime('%Y-%m-%d %H:%M:%S')
camera.wait_recording(1)
now = dt.datetime.now()
if killer.kill_now:
camera.stop_recording()
return
camera.stop_recording()
def _set_annotate_background(self, value):
self._check_camera_open()
if value is True:
warnings.warn(
PiCameraDeprecated(
'Setting PiCamera.annotate_background to True is '
'deprecated; use PiCamera.color.Color("black") instead'))
value = Color('black')
elif value is False:
warnings.warn(
PiCameraDeprecated(
'Setting PiCamera.annotate_background to False is '
'deprecated; use None instead'))
value = None
elif value is None:
pass
elif not isinstance(value, Color):
raise PiCameraValueError(
'annotate_background must be a Color or None')
elif self._camera.annotate_rev < 3 and value.rgb_bytes != (0, 0, 0):
warnings.warn(
PiCameraFallback(
"Firmware does not support setting a custom background "
"annotation color; using black instead"))
mp = self._camera.control.params[mmal.MMAL_PARAMETER_ANNOTATE]
if self._camera.annotate_rev == 3:
if value is None:
mp.enable_text_background = False
else:
mp.enable_text_background = True
mp.custom_background_color = True
(
mp.custom_background_Y,
mp.custom_background_U,
mp.custom_background_V,
) = value.yuv_bytes
else:
if value is None:
mp.black_text_background = False
else:
mp.black_text_background = True
self._camera.control.params[mmal.MMAL_PARAMETER_ANNOTATE] = mp
def _set_annotate_background(self, value):
self._check_camera_open()
if value is True:
warnings.warn(
PiCameraDeprecated(
'Setting PiCamera.annotate_background to True is '
'deprecated; use PiCamera.color.Color("black") instead'))
value = Color('black')
elif value is False:
warnings.warn(
PiCameraDeprecated(
'Setting PiCamera.annotate_background to False is '
'deprecated; use None instead'))
value = None
elif value is None:
pass
elif not isinstance(value, Color):
raise PiCameraValueError(
'annotate_background must be a Color or None')
elif not self._annotate_v3 and value.rgb_bytes != (0, 0, 0):
warnings.warn(
PiCameraFallback(
"Firmware does not support setting a custom background "
"annotation color; using black instead"))
mp = self._get_annotate_settings()
if self._annotate_v3:
if value is None:
mp.enable_text_background = False
else:
mp.enable_text_background = True
mp.custom_background_color = True
(
mp.custom_background_Y,
mp.custom_background_U,
mp.custom_background_V,
) = value.yuv_bytes
else:
if value is None:
mp.black_text_background = False
else:
mp.black_text_background = True
mmal_check(
mmal.mmal_port_parameter_set(self._camera[0].control, mp.hdr),
prefix="Failed to set annotation background")
