def gen(camera):
global CAMERA_CONTROl
global OLD_CAMERA_CONTROl
while (1):
if CAMERA_CONTROl == 1:
camera = VideoCamera()
frame = camera.get_frame()
yield (b'--frame\r\n'
b'Content-Type: image/jpeg\r\n\r\n' + frame + b'\r\n\r\n')
if OLD_CAMERA_CONTROl == 1 and CAMERA_CONTROl == 0:
camera.close()
if OLD_CAMERA_CONTROl == 0 and CAMERA_CONTROl == 0:
time.sleep(0.4)
OLD_CAMERA_CONTROl = CAMERA_CONTROl
def video_feed():
"""Video streaming route. This is used in the src attribute of an img tag."""
# Initialising switcher using user selection of switcher
switcher = get_selected_switcher(session['switcherSelect'],
session['switcherThreshold'])
detection = get_selected_detector(session['detectionSelect'])
# Initialising emulated openCV camera using video path selected by user
camera = VideoCamera(session['firstPath'], session['secondPath'], switcher,
detection)
return Response(gen(camera),
mimetype='multipart/x-mixed-replace; boundary=frame')
import threading # Concerne les thread (exemple : yield)
import os # Concerne les éléments relatif à l'os
import subprocess # Concerne l'exécution de processus
app = Flask(__name__)
# Initialisation of the bright pi
bright_special = BrightPiSpecialEffects()
bright_special.reset()
# Setting up indexes
RIGHT_LEDS = [1, 2]
LEFT_LEDS = [3, 4]
# Initialisation de la caméra
pi_camera = VideoCamera(flip=True) # retourne la caméra
def blink(repetitions, speed, right_leds, left_leds, side):
"""Make the bright pi leds blink
repetitions : The number of times the blink should appear
speed : The amount of time a led needs to be activated and disabled.
The times is divided by 2, e.g. 1 second will be 0.5 second on and 0.5 off
right_leds : The indexes of the right leds
left_leds : The indexes of the left leds
side : The side we want to make it blinks
"""
# fait clignoter les leds des côtés spécifiés
duration = speed / 2
leds_to_activate = []
def video_feed():
return Response(gen(VideoCamera()),
mimetype='multipart/x-mixed-replace; boundary=frame')
def video_feed(request):
return StreamingHttpResponse(
gen(VideoCamera()),
content_type='multipart/x-mixed-replace; boundary=frame')
def video_feed():
return Response(gen(VideoCamera(int(src0), threshold, labels, detector)),
mimetype='multipart/x-mixed-replace; boundary=frame')