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Only import cv2 in the methods that require it (prevents camera.pi

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and other camera derived plugins from failing if OpenCV is not installed)
This commit is contained in:
Fabio Manganiello 2019-08-07 09:43:40 +02:00
parent fa9b816d06
commit 228e656da8
1 changed files with 8 additions and 2 deletions
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10
platypush/plugins/camera/__init__.py
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@ -4,8 +4,6 @@ import shutil
import threading import threading
import time import time
import cv2
from datetime import datetime from datetime import datetime
from platypush.config import Config from platypush.config import Config
@ -112,6 +110,7 @@ class CameraPlugin(Plugin):
:type flip: int :type flip: int
""" """
import cv2
super().__init__(**kwargs) super().__init__(**kwargs)
self._default_frames_dir = os.path.join(Config.get('workdir'), 'camera', 'frames') self._default_frames_dir = os.path.join(Config.get('workdir'), 'camera', 'frames')
@ -135,6 +134,7 @@ class CameraPlugin(Plugin):
self._recording_info = {} # device_id => recording info map self._recording_info = {} # device_id => recording info map
def _init_device(self, device_id, frames_dir=None, **info): def _init_device(self, device_id, frames_dir=None, **info):
import cv2
self._release_device(device_id) self._release_device(device_id)
if device_id not in self._devices: if device_id not in self._devices:
@ -173,6 +173,8 @@ class CameraPlugin(Plugin):
@staticmethod @staticmethod
def _store_frame_to_file(frame, frames_dir, image_file): def _store_frame_to_file(frame, frames_dir, image_file):
import cv2
if image_file: if image_file:
filepath = image_file filepath = image_file
else: else:
@ -215,6 +217,8 @@ class CameraPlugin(Plugin):
os.unlink(f) os.unlink(f)
def _make_video_file(self, frames_dir, video_file, video_type): def _make_video_file(self, frames_dir, video_file, video_type):
import cv2
files = self._get_stored_frames_files(frames_dir) files = self._get_stored_frames_files(frames_dir)
if not files: if not files:
self.logger.warning('No frames found in {}'.format(frames_dir)) self.logger.warning('No frames found in {}'.format(frames_dir))
@ -238,6 +242,7 @@ class CameraPlugin(Plugin):
max_stored_frames, color_transform, video_type, max_stored_frames, color_transform, video_type,
scale_x, scale_y, rotate, flip): scale_x, scale_y, rotate, flip):
import cv2
device = self._devices[device_id] device = self._devices[device_id]
color_transform = getattr(cv2, self.color_transform) color_transform = getattr(cv2, self.color_transform)
rotation_matrix = None rotation_matrix = None
@ -343,6 +348,7 @@ class CameraPlugin(Plugin):
these parameters if you want to override the default configured ones. these parameters if you want to override the default configured ones.
""" """
import cv2
device_id = device_id if device_id is not None else self.default_device_id device_id = device_id if device_id is not None else self.default_device_id
if device_id in self._is_recording and \ if device_id in self._is_recording and \
self._is_recording[device_id].is_set(): self._is_recording[device_id].is_set():