Linux video camera security and surveillance solution based on ZoneMinder and developed on top of a node.js stack.
See some screenshots in our blog.
Contact: nodeminderjs@gmail.com
- Release 0.0.6
- Setup
- Configuration
- Running the server
- Open in your browser
- Socket.io reconnect ok. Moved the for that emits subscribe events for the cameras into the connect event. After reconnect this event is fired again.
- Alert box to show client disconnect.
- Fixed a bug in using the '(new Date()).toISOString().substr(0,10)' expression to get the date folder name where the recordings are saved. The time returned did not consider the timezone.
- Added -y option in ffmpeg command to overwrite output files without asking.
It uses avcodec and swscale libraries from the FFmpeg project.
I followed the excelent [Compile FFmpeg on Ubuntu] (https://ffmpeg.org/trac/ffmpeg/wiki/UbuntuCompilationGuide) tutorial to provide the latestFFmpeg code and enable several external encoding and decoding libraries, like libx264 (H.264 encoder) used to encode the mp4 event recording video file.
After getting ffmpeg, compile the c source code:
$ cd app/grabc/
$ make
$ cd ..
It uses socket.io and express, so install them with npm.
$ cd app/
$ npm install
Edit the configuration file nodeminderjs.conf located at the app/config folder to edit the server and cameras configuration options. This is a JSON formatted file containing the server port and cameras configuration options.
Example with two cameras configured:
{
"server": {
"port": 8080
},
"events": {
"dir": "/var/nodeminderjs/events/"
},
"cameras": {
"01": {
"descr": "IT camera 1",
"type": "local",
"device": "/dev/video0",
"channel": 0,
"format": "NTSC",
"palette": "BGR24",
"width": 320,
"height": 240,
"fps": 3,
"recording": {
"rec_on": 0,
"change_detect": {
"pixel_limit": 9,
"image_limit": 5
}
}
},
"02": {
"descr": "IT camera 2",
"type": "local",
"device": "/dev/video1",
"channel": 0,
"format": "NTSC",
"palette": "BGR24",
"width": 320,
"height": 240,
"fps": 3,
"recording": {
"rec_on": 0,
"change_detect": {
"pixel_limit": 6,
"image_limit": 2
}
}
},
"03": {
"descr": "IT camera 3",
"type": "local",
"device": "/dev/video2",
"channel": 0,
"format": "NTSC",
"palette": "BGR24",
"width": 320,
"height": 240,
"fps": 3,
"recording": {
"rec_on": 0,
"change_detect": {
"pixel_limit": 6,
"image_limit": 2
}
}
},
"04": {
"descr": "front door",
"type": "local",
"device": "/dev/video3",
"channel": 0,
"format": "NTSC",
"palette": "BGR24",
"width": 320,
"height": 240,
"fps": 3,
"recording": {
"rec_on": 1,
"change_detect": {
"pixel_limit": 6,
"image_limit": 2
}
}
},
"05": {
"descr": "my table",
"type": "local",
"device": "/dev/video0",
"channel": 1,
"format": "NTSC",
"palette": "BGR24",
"width": 320,
"height": 240,
"fps": 3,
"recording": {
"rec_on": 1,
"change_detect": {
"pixel_limit": 7,
"image_limit": 3
}
}
}
}
}Location of the mp4 videos generates for each event recording. The user wich is running the node app must have write permissions in this dir.
Inside this dir will be created a structure like this:
One folder for each camera configured (Ex.: "01", "02", etc). Inside each camera dir will be created one folder for each date (Ex.: "2013-01-28", "2013-01-29", etc). Inside each date folder will be placed the video files named with the event starting time (Ex.: "170618.mp4", "210532.mp4", etc).
NN = camera number with a leading zero: "01", "02", etc.
format = NTSC (default) | PAL_M
palette = BGR24 (default) | BGR32 | RGB24 | RGB32 | YUYV | YUV420 | GREY
Turn on (1) or off (0) the events recording for the camera.
Upper diff limit (%) on pixel level to detect change. Put higher values to decrease sensitivity, for example, for cameras with a higher level of noise and interference in the image.
Use -1 value to disable change detection and recording for this camera.
Upper diff limit (%) on image level to detect change. Lower values will get small changes in the image. Use higher values to decrease sensitivity and detect only larger changes in the image.
Use -1 value to disable change detection and recording for this camera.
Experiment with different values for these two parameters
$ sudo node app
or add your user to video group with
$ sudo adduser <your_user> video
and run the app without sudo
$ node app
Open your browser in http://host:port (replace with your correct server ip/host and port).
We recomend Google Chrome browser. In Firefox we verified some image blinking. In Chrome the image changing is more smooth.
Example:
Ex.: http://192.168.1.181:8080/
Show a table with the configured cameras. In next releases this will be the configuration page where we can configure and add cameras, set server and events global configs, etc.
Ex.: http://192.168.1.181:8080/grid/<custom_layout>
This page show all cameras in a grid style.
You can move and resize each camera. When you close and reopen, your last layout will be reloaded.
Use a <custom_layout> name after the URL to save several different layouts.
Ex.:
http://192.168.1.181:8080/grid
will be diffent from
http://192.168.1.181:8080/grid
that will be different from
http://192.168.1.181:8080/grid/mygrid
each one with a different custom layout!
Ex.: http://192.168.1.181:8080/view/
Show only one camera view.
Ex.: http://192.168.1.181:8080/view/1 <== show camera "01"
Page for viewing the recorded events.
Ex.: http://192.168.1.181:8080/events/4 <== show recorded events from camera "04"