Live feed using Python

BabasahebMane

I am trying to access the live camera feed from robohub using Python but it is giving error as follows:

ConnectionError: 1/1: https://robothub.luxonis.com/public-access/app-streams/d638e4f6-9246-4c5e-9611-2fce6c037d77... Failed to open https://robothub.luxonis.com/public-access/app-streams/d638e4f6-9246-4c5e-9611-2fce6c037d77

jakaskerl

Hi BabasahebMane
Could you explain the issue you are facing in more detail?
Ideally, if you can describe the exact steps taken, or perhaps, send a video.

Thanks,
Jaka

BabasahebMane

I have Robothub link using which I can see live stream in browser but as I am using it to access from Python code I am unable to use it.

import cv2

# Define the URL of the live streamurl = "https://robothub.luxonis.com/public-access/app-streams/**********"
# Create a VideoCapture object to read the streamcap = cv2.VideoCapture(url)
while True: # Read a frame from the stream ret, frame = cap.read()
if not ret: print("Failed to retrieve frame") break
# Display the frame cv2.imshow("Live Stream", frame)
# Check for 'q' key press to exit the loop if cv2.waitKey(1) & 0xFF == ord('q'): break
# Release the VideoCapture and close all OpenCV windowscap.release()cv2.destroyAllWindows()

jakaskerl

Hi BabasahebMane
You cannot access the stream because the url doesn't point directly to the stream. The preview is not meant to be played that way.

If you wish to use the stream directly with opencv, you will have to expose it yourself.

Thanks,
Jaka

BabasahebMane

jakaskerl

Can you help me to access the stream. Is it possible with robothub or I need direct ip address of camera to access the stream?

FilipProchazka

BabasahebMane the stream isnt just simple HLS, we use WebRTC & custom data channel format

you can't access the video feed from python - at least not our video feed

to do what you are trying to do - you need to develop your own HLS streaming backend (which we don't provide any advice for)

if I may ask - what are you trying to achieve? usually any opencv work / work with the video is done directly in the RobotHub application and then these modified frames are streamed (either via our streaming solution or your own)