how to use IP cam with openvino

[Heng__Chin]

can openvino use with IP cam instead of web cam ? if yes, how to setup ?

[Hyodo__Katsuya]

@Heng, Chin Regardless of the function of OpenVINO, it can be processed by OpenCV. https://stackoverflow.com/questions/49978705/access-ip-camera-in-python-opencv

[Heng__Chin]

@Hyodo, Katsuya

import numpy as np

import cv2 cap = cv2.VideoCapture('http://username:password@10.10.XX.XX')

while(True): ret, frame = cap.read()

cv2.imshow('frame',frame)

if cv2.waitKey(1) & 0xFF == ord('q'):

break

cap.release()

cv2.destroyAllWindows()

tested code above but not working, and got this message below:

user@user-virtual-machine:~/Downloads$ python3 ipcam.py

(python3:4185): GStreamer-CRITICAL **: gst_element_get_state: assertion 'GST_IS_ELEMENT (element)' failed
Traceback (most recent call last):
  File "ipcam.py", line 16, in <module>
    cv2.imshow('frame',frame)
cv2.error: OpenCV(4.0.0-pre) /home/jenkins/workspace/OpenCV/OpenVINO/build/opencv/modules/highgui/src/window.cpp:356: error: (-215:Assertion failed) size.width>0 && size.height>0 in function 'imshow'

[Hyodo__Katsuya]

You need to replace 1.username 2.password 3.ipaddress 4.port 5.path(xxxx) with the correct value. import cv2 cap = cv2.VideoCapture("http://username:password@xxx.xxx.xxx.xxx:port/xxxx") #cap = cv2.VideoCapture("http://username:password@xxx.xxx.xxx.xxx:port") while(True): ret, frame = cap.read() cv2.imshow('frame',frame) if cv2.waitKey(1) & 0xFF == ord('q'): break cap.release() cv2.destroyAllWindows() or import cv2 cap = cv2.VideoCapture("rtsp://username:password@xxx.xxx.xxx.xxx/1") while(True): ret, frame = cap.read() cv2.imshow('frame',frame) if cv2.waitKey(1) & 0xFF == ord('q'): break cap.release() cv2.destroyAllWindows() If there is no authentication setting, import cv2 cap = cv2.VideoCapture("http://xxx.xxx.xxx.xxx:port/xxxx") #cap = cv2.VideoCapture("http://xxx.xxx.xxx.xxx:port") while(True): ret, frame = cap.read() cv2.imshow('frame',frame) if cv2.waitKey(1) & 0xFF == ord('q'): break cap.release() cv2.destroyAllWindows() or import cv2 cap = cv2.VideoCapture("rtsp://xxx.xxx.xxx.xxx/1") while(True): ret, frame = cap.read() cv2.imshow('frame',frame) if cv2.waitKey(1) & 0xFF == ord('q'): break cap.release() cv2.destroyAllWindows()

[Heng__Chin]

@Hyodo, Katsuya

replaced username,password,port with correct value still having same output

cap = cv2.VideoCapture("http://username:password@xxx.xxx.xxx.xxx:port")

user@user-virtual-machine:~/Downloads$ python3 ipcam.py 
[http @ 0x1e3d320] Stream ends prematurely at 0, should be 1581

(python3:5253): GStreamer-CRITICAL **: gst_element_get_state: assertion 'GST_IS_ELEMENT (element)' failed
Traceback (most recent call last):
  File "ipcam.py", line 17, in <module>
    cv2.imshow('frame',frame)
cv2.error: OpenCV(4.0.0-pre) /home/jenkins/workspace/OpenCV/OpenVINO/build/opencv/modules/highgui/src/window.cpp:356: error: (-215:Assertion failed) size.width>0 && size.height>0 in function 'imshow'

if using rtsp will get message below

cap = cv2.VideoCapture("rtsp://username:password@xxx.xxx.xxx.xxx/1")

user@user-virtual-machine:~/Downloads$ python3 ipcam.py 
[rtsp @ 0x2335920] method OPTIONS failed: 404 Not Found

(python3:5298): GStreamer-CRITICAL **: gst_element_get_state: assertion 'GST_IS_ELEMENT (element)' failed
Traceback (most recent call last):
  File "ipcam.py", line 17, in <module>
    cv2.imshow('frame',frame)
cv2.error: OpenCV(4.0.0-pre) /home/jenkins/workspace/OpenCV/OpenVINO/build/opencv/modules/highgui/src/window.cpp:356: error: (-215:Assertion failed) size.width>0 && size.height>0 in function 'imshow'

[Hyodo__Katsuya]

I do not know the type of camera you are using, so further advice is difficult.

[Heng__Chin]

I'm using DVR model: HV7108

[Hyodo__Katsuya]

??? Probably, It is not a network camera. I do not know what you want to do.

[Jia__Qingyu]

Hi,

I'm encountering significant lagging with IP camera with build inference engine sample for age, emotion and gender recognition models.

It will freeze the terminal most of the time.

My input is "-i rtsp:username:password@ipv4:port/video_path". Tried to scaled down the resolution, didn't see much improvement.

However it works a lot better with USB camera.

Any comments would be highly appreciated.