How can I check if a user closed a specific tab/window in Flask?
I am running a server that allows users to detect motion via their webcam. The motion detector window/URL streams a live feed and I want to detect when the stream/motion detection was cut off if the user closes the window/tab directly instead of clicking the stop button.
I tried searching for a solution online but could not find one.
Here's the code for the route in the flask app
@app.route('/camera')
@login_required
def camera():
return Response(get_frame(), mimetype='multipart/x-mixed-replace; boundary=frame')
The 'get_frame()' passed in the Response above does not have a return statement, it uses yield instead to provide the images from webcam as a motion picture.
def get_frame():
....
....
yield (b'--framern'
b'Content-Type: text/plainrnrn' + imageData + b'rn')
I want to detect it to create timestamps for when the motion detector was started and when it stopped.
python flask
asked Jan 20 at 0:23
ChandralChandral
638
add a comment |
I am running a server that allows users to detect motion via their webcam. The motion detector window/URL streams a live feed and I want to detect when the stream/motion detection was cut off if the user closes the window/tab directly instead of clicking the stop button.
I tried searching for a solution online but could not find one.
Here's the code for the route in the flask app
@app.route('/camera')
@login_required
def camera():
return Response(get_frame(), mimetype='multipart/x-mixed-replace; boundary=frame')
The 'get_frame()' passed in the Response above does not have a return statement, it uses yield instead to provide the images from webcam as a motion picture.
def get_frame():
....
....
yield (b'--framern'
b'Content-Type: text/plainrnrn' + imageData + b'rn')
I want to detect it to create timestamps for when the motion detector was started and when it stopped.
python flask
asked Jan 20 at 0:23
ChandralChandral
638
add a comment |
I am running a server that allows users to detect motion via their webcam. The motion detector window/URL streams a live feed and I want to detect when the stream/motion detection was cut off if the user closes the window/tab directly instead of clicking the stop button.
I tried searching for a solution online but could not find one.
Here's the code for the route in the flask app
@app.route('/camera')
@login_required
def camera():
return Response(get_frame(), mimetype='multipart/x-mixed-replace; boundary=frame')
The 'get_frame()' passed in the Response above does not have a return statement, it uses yield instead to provide the images from webcam as a motion picture.
def get_frame():
....
....
yield (b'--framern'
b'Content-Type: text/plainrnrn' + imageData + b'rn')
I want to detect it to create timestamps for when the motion detector was started and when it stopped.
python flask
asked Jan 20 at 0:23
ChandralChandral
638
I am running a server that allows users to detect motion via their webcam. The motion detector window/URL streams a live feed and I want to detect when the stream/motion detection was cut off if the user closes the window/tab directly instead of clicking the stop button.
I tried searching for a solution online but could not find one.
Here's the code for the route in the flask app
@app.route('/camera')
@login_required
def camera():
return Response(get_frame(), mimetype='multipart/x-mixed-replace; boundary=frame')
The 'get_frame()' passed in the Response above does not have a return statement, it uses yield instead to provide the images from webcam as a motion picture.
def get_frame():
....
....
yield (b'--framern'
b'Content-Type: text/plainrnrn' + imageData + b'rn')
I want to detect it to create timestamps for when the motion detector was started and when it stopped.
python flask
python flask
asked Jan 20 at 0:23
ChandralChandral
638
asked Jan 20 at 0:23
ChandralChandral
638
asked Jan 20 at 0:23
ChandralChandral
638
asked Jan 20 at 0:23
ChandralChandral
638
asked Jan 20 at 0:23
ChandralChandral
638
638
add a comment |
add a comment |
1 Answer
1
active
oldest
votes
Plain and simple solution is to write a last sent batch timestamp to a request:
from flask import request
def get_frame():
....
request.last_batch_send_time = time.time()
yield (b'--framern'
b'Content-Type: text/plainrnrn' + imageData + b'rn')
Then you can use it in an after request callback, for example.
answered Jan 20 at 9:39
FianFian
1,3281615
Thanks, it actually gave me a much better idea to implement this. I will keep you posted :)
– Chandral
Jan 22 at 3:17
add a comment |
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
Plain and simple solution is to write a last sent batch timestamp to a request:
from flask import request
def get_frame():
....
request.last_batch_send_time = time.time()
yield (b'--framern'
b'Content-Type: text/plainrnrn' + imageData + b'rn')
Then you can use it in an after request callback, for example.
answered Jan 20 at 9:39
FianFian
1,3281615
Thanks, it actually gave me a much better idea to implement this. I will keep you posted :)
– Chandral
Jan 22 at 3:17
add a comment |
Plain and simple solution is to write a last sent batch timestamp to a request:
from flask import request
def get_frame():
....
request.last_batch_send_time = time.time()
yield (b'--framern'
b'Content-Type: text/plainrnrn' + imageData + b'rn')
Then you can use it in an after request callback, for example.
answered Jan 20 at 9:39
FianFian
1,3281615
Thanks, it actually gave me a much better idea to implement this. I will keep you posted :)
– Chandral
Jan 22 at 3:17
add a comment |
Plain and simple solution is to write a last sent batch timestamp to a request:
from flask import request
def get_frame():
....
request.last_batch_send_time = time.time()
yield (b'--framern'
b'Content-Type: text/plainrnrn' + imageData + b'rn')
Then you can use it in an after request callback, for example.
answered Jan 20 at 9:39
FianFian
1,3281615
Plain and simple solution is to write a last sent batch timestamp to a request:
from flask import request
def get_frame():
....
request.last_batch_send_time = time.time()
yield (b'--framern'
b'Content-Type: text/plainrnrn' + imageData + b'rn')
Then you can use it in an after request callback, for example.
answered Jan 20 at 9:39
FianFian
1,3281615
answered Jan 20 at 9:39
FianFian
1,3281615
answered Jan 20 at 9:39
FianFian
1,3281615
answered Jan 20 at 9:39
FianFian
1,3281615
1,3281615
Thanks, it actually gave me a much better idea to implement this. I will keep you posted :)
– Chandral
Jan 22 at 3:17
add a comment |
Thanks, it actually gave me a much better idea to implement this. I will keep you posted :)
– Chandral
Jan 22 at 3:17
Thanks, it actually gave me a much better idea to implement this. I will keep you posted :)
– Chandral
Jan 22 at 3:17
Thanks, it actually gave me a much better idea to implement this. I will keep you posted :)
– Chandral
Jan 22 at 3:17
add a comment |
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