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https://github.com/sensoranalyticsaus/remote_rtsp
For accessing RTSP camera udp streams remotely with opencv-python.
https://github.com/sensoranalyticsaus/remote_rtsp
ipcamera opencv python rtsp
Last synced: 7 days ago
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For accessing RTSP camera udp streams remotely with opencv-python.
- Host: GitHub
- URL: https://github.com/sensoranalyticsaus/remote_rtsp
- Owner: SensorAnalyticsAus
- License: gpl-3.0
- Created: 2022-11-01T13:04:44.000Z (about 2 years ago)
- Default Branch: main
- Last Pushed: 2024-05-21T06:33:57.000Z (6 months ago)
- Last Synced: 2024-05-21T07:51:19.720Z (6 months ago)
- Topics: ipcamera, opencv, python, rtsp
- Language: Shell
- Homepage:
- Size: 35.2 KB
- Stars: 0
- Watchers: 3
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- License: license
Awesome Lists containing this project
README
# How to programatically connect to a RTSP camera URL remotely with OpenCV-Python
Accessing a RTSP cam stream from a remote site with ````opencv````, requires two basic computers, e.g. rpi3s, one in each LAN.
[Remote RTSP LAN access setup](https://www.sensoranalytics.com.au/misc/Sof.jpg)
A serial vpn link is setup between the two rpis with the following commands on the remote rpi.
Install ````ppp```` package on both the rpis:
````
sudo apt update
sudo apt upgrade
sudo apt install ppp
````
### Enable IP Forwarding
Check IP forwarding is enabled on both the rpis:
````
sysctl net.ipv4.ip_forward
net.ipv4.ip_forward = 1
````
If the value is '0' then:
edit `/etc/sysctl.conf`. Search for a line containing the entry `#net.ipv4.ip_forward=1`, and remove the # at the beginning of the line. Save the file and run the `sysctl` command to enable the edited setting:
````
sudo sysctl -p /etc/sysctl.conf
````
````vpn-s````
````
#/bin/bash
# vpn-s script sets up a point-to-point vpn between remote computer
# and local computer on the home LAN.
# Run this script on the remote computer. Tested on Raspbian and Debian10.
sudo /usr/sbin/pppd updetach connect-delay 60000 noauth pty\
"sudo -u usrname_remote /usr/bin/ssh -t -t usrname@home_router_ip -p home_router_port_no_fwd_to_rpi\
sudo /usr/sbin/pppd noauth 192.168.186.2:192.168.186.1"
````
````fwdonremote````
````
#!/bin/bash
# Edit in below your actual local, i.e. home, LAN address (as provided by ISP).
#start ssh vpn first (vpn-s) then run this script on remote computer.
sudo iptables -F
sudo iptables -t nat -F
sudo ip r add 192.168.1.0/24 dev ppp0
sudo iptables -t nat -A POSTROUTING -o wlan0 -j MASQUERADE
````
```` fwdonlocal ````
````
#!/bin/bash
# Edit in below your actual remote LAN address (as provided by ISP).
#After ssh vpn has been established by remote run this script here on
#the local computer.
sudo iptables -F
sudo iptables -t nat -F
sudo ip route add 192.168.0.0/24 dev ppp0
sudo iptables -t nat -A POSTROUTING -o wlan0 -j MASQUERADE
````
Install the following ````python```` packages if not previously installed on remote rpi.
````
pip install --upgrade pip
pip install numpy
pip install opencv-python
````
Running ```` open_uri.py```` with your own camera rtsp://url edited in should connect to the ipcam on home LAN and open a display window in the remote rpi.
**Note:** If remote rpi is running in headless mode, connection to it should be made with X forwarding enabled to access the display say with ````ssh -XY rpi3-remote````.
### Troubleshooting
````vpn-s```` requires the ````ssh```` login from remote rpi to local rpi is passwordless with no keyboard interaction. The ````sudo```` command on both the rpis is also passwordless with no keyboard interacion.
````fwdon```` scripts require the ````iptables```` on both the rpis are in their default setting before use, which can be set as:
````
sudo iptables -F
sudo -t nat -F
````
Check if your rpis have ````ufw````, check if it's active. If so, it may be blocking network traffic in some way.