How can I take input from IP cam or from usb cam ?

[Ajinkz]

I'm using Panasonic IP camera model: BL-C131/C111
Logitec USB camera model: C170

I faced this error while trying to run the code using cmd line arg -s 1 instead of 0

(face3) E:\clients\Assets\FR_Infogen_v3\server\Threading>python thread_demo.py -s 1
warning: Error opening file (/build/opencv/modules/videoio/src/cap_ffmpeg_impl.hpp:901)
warning: 1 (/build/opencv/modules/videoio/src/cap_ffmpeg_impl.hpp:902) 

I want to aslo know how can I use video stream from IP cam as source.

[nrsyed]

I haven't used IP cameras myself, but I came across this SO question that suggests you need to provide the URL/IP address of the IP cam: https://stackoverflow.com/questions/49978705/access-ip-camera-in-python-opencv

Let me know if that works.