+
Recently I have been looking at how to control and collect data
+from a handful IP cameras using Linux. I both wanted to change their
+settings and to make their imagery available via a free software
+service under my control. Here is a summary of the tools I found.
+
+
First I had to identify the cameras and their protocols. As far as
+I could tell, they were using some SOAP looking protocol and their
+internal web server seem to only work with Microsoft Internet Explorer
+with some proprietary binary plugin, which in these days of course is
+a security disaster and also made it impossible for me to use the
+camera web interface. Luckily I discovered that the SOAP looking
+protocol is actually following the
+ONVIF specification, which seem to be supported by a lot of IP
+cameras these days.
+
+
Once the protocol was identified, I was able to find what appear to
+be the most popular way to configure ONVIF cameras, the free software
+Windows tool named
+ONVIF Device
+Manager. Lacking any other options at the time, I tried
+unsuccessfully to get it running using Wine, but was missing a dotnet
+40 library and I found no way around it to run it on Linux.
+
+
The next tool I found to configure the cameras were a non-free Linux Qt
+client ONVIF
+Device Tool. I did not like its terms of use, so did not spend
+much time on it.
+
+
To collect the video and make it available in a web interface, I
+found the Zoneminder tool in Debian. A recent version was able to
+automatically detect and configure ONVIF devices, so I could use it to
+set up motion detection in and collection of the camera output. I had
+initial problems getting the ONVIF autodetection to work, as both
+Firefox and Chromium refused
+the inter-tab communication being used by the Zoneminder web
+pages, but managed to get konqueror to work. Apparently the "Enhanced
+Tracking Protection" in Firefox cause the problem. I ended up
+upgrading to the Bookworm edition of Zoneminder in the process to try
+to fix the issue, and believe the problem might be solved now.
+
+
In the process I came across the nice Linux GUI tool
+ONVIF Viewer
+allowing me to preview the camera output and validate the login
+passwords required. Sadly its author has grown tired of maintaining
+the software, so it might not see any future updates. Which is sad,
+as the viewer is sightly unstable and the picture tend to lock up.
+Note, this lockup might be due to limitations in the cameras and not
+the viewer implementation. I suspect the camera is only able to
+provide pictures to one client at the time, and the Zoneminder feed
+might interfere with the GUI viewer. I have
+asked for the tool to be
+included in Debian.
+
+
Finally, I found what appear to be very nice Linux free software
+replacement for the Windows tool, named
+libonvif. It
+provide a C library to talk to ONVIF devices as well as a command line
+and GUI tool using the library. Using the GUI tool I was able to change
+the admin passwords and update other settings of the cameras. I have
+asked for the package to be
+included in Debian.
+
+
As usual, if you use Bitcoin and want to show your support of my
+activities, please send Bitcoin donations to my address
+15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b.
+
+
Update 2022-10-20: Since my initial publication of
+this text, I got several suggestions for more free software Linux
+tools. There is a
+ONVIF python library (already
+requested into Debian) and
+a python 3
+fork using a different SOAP dependency. There is also
+support for
+ONVIF in Home Assistant, and there is an alternative to Zoneminder
+called Shinobi. The latter
+two are not included in Debian either. I have not tested any of these
+so far.
+
+