FlaskCameraLiveStream/camera.py

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2020-09-21 20:44:29 +00:00
#Modified by smartbuilds.io
#Date: 27.09.20
#Desc: This scrtipt script..
import cv2 as cv
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from imutils.video.pivideostream import PiVideoStream
import imutils
import time
from datetime import datetime
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import numpy as np
class VideoCamera(object):
def __init__(self, flip = False, file_type = ".jpg", photo_string= "stream_photo"):
self.vs = PiVideoStream(resolution=(1920, 1080), framerate=30).start()
self.flip = flip # Flip frame vertically
self.file_type = file_type # image type i.e. .jpg
self.photo_string = photo_string # Name to save the photo
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time.sleep(2.0)
def __del__(self):
self.vs.stop()
def flip_if_needed(self, frame):
if self.flip:
return np.flip(frame, 0)
return frame
def get_frame(self):
frame = self.flip_if_needed(self.vs.read())
ret, jpeg = cv.imencode(self.file_type, frame)
self.previous_frame = jpeg
return jpeg.tobytes()
# Take a photo, called by camera button
def take_picture(self):
frame = self.flip_if_needed(self.vs.read())
ret, image = cv.imencode(self.file_type, frame)
today_date = datetime.now().strftime("%m%d%Y-%H%M%S") # get current time
cv.imwrite(str(self.photo_string + "_" + today_date + self.file_type), frame)