it's an script which watches your webcam source as a CCTV and write logs of motion inside the room in a text file
[1] WebCam
for using your secondary webcam
change this part of code :
cap = cv2.VideoCapture(0)
note : 0 is your main web cam then other ones is 1 , 2, 3 and ..
EXAMPLE : my secondary webcam (second one in this example ) is available
I would change cap = cv2.VideoCapture(0)
to cap = cv2.VideoCapture(1)
[2] OfflineSource
for parsing offline data you can change above example source
use video name(wich is in the same directory of script) instead of webcam source
EXAMPLE : my video name is "video.mp4"
I would change cap = cv2.VideoCapture(0)
to cap = cv2.VideoCapture("video.mp4")