Constatus is a digital video recorder and streamer.
Apart from simply recording video, it can also monitor, convert, transform, filter and multiplex video-feeds. Feeds like IP-cameras, "video4linux"-devices, pixelflut, VNC-servers, Raspberry Pi-cameras, etc.
An important feature is checking for motion. If it sees anything moving, it can start recording and stops recording when the motion stops (surveillance software).
While Constatus monitors the camera, you can use the built-in webserver (and VNC server) to view the video stream concurrently.
It runs on most if not all hardware that supports Linux: from Raspberry Pi 1B systems up to AMD ThreadRipper and Intel Xeon systems. Since version 4.2 it also runs on 64-bit windows (using WSL or by using cygwin ('cygwin' branch on github)), FreeBSD 12.1 ('freebsd' branch in github) and MacOS X ('macosx' branch in github).
It has plug-interfaces for input-, output- and meta-processing.
Note that these lists are not complete. New features are constantly added.
These package files can be found here.
The current packaged version is 4.5.
Please note that the packages published here contain ALL functionality available. Because of that there are a lot of depencies required. If you compile Constatus yourself, then you can limit that to only the functionality you require.
Constatus is on GitHub.
Also the sources has a "examples/"-directory containing example configuration-files.
Supporting the development of Constatus is also possible, check this page for details.
vanheusden.com a simple demo of the web-interface. It has 4 very cheap (3 euro) webcams with limited light. Note that it has limited bandwidth so with many viewers it may be a tad slow.
RevSpace is running constatus
Constatus can also stream 3D video.
Constatus was thoroughly tested by Fierman