ONVIF Client protocol Profile S (Live Streaming) and Profile G (Replay) Node.js implementation.
This is a wrapper to ONVIF protocol which allows you to get information about your NVT (network video transmitter) device, its media sources, control PTZ (pan-tilt-zoom) movements and manage presets, detect devices in your network and control its events. It will also allow you to get information about your NVR (network video recorder) Profile G device and obtain a list of recordings.
npm install onvif
- install latest stable version
npm install agsh/onvif
- install latest version from GitHub
npm install agsh/onvif#dev
- install latest development version
git clone https://github.com/agsh/onvif.git
In the library directory run npm test
By default the tests use a mockup server to generate ONVIF replies.
To test with the real device, set appropriate environment variables HOSTNAME
, USERNAME
, PASSWORD
, PORT
and run
tests.
To build jsdoc for the library with default theme run npm run jsdoc
. Otherwise use jsdoc
with sources from
./lib/*.js
This example asks your camera to look up and starts a web server at port 3030 that distributes a web page with vlc-plugin container which translates video from the camera.
var
http = require('http'),
Cam = require('onvif').Cam;
new Cam({
hostname: <CAMERA_HOST>,
username: <USERNAME>,
password: <PASSWORD>
}, function(err) {
this.absoluteMove({x: 1, y: 1, zoom: 1});
this.getStreamUri({protocol:'RTSP'}, function(err, stream) {
http.createServer(function (req, res) {
res.writeHead(200, {'Content-Type': 'text/html'});
res.end('<html><body>' +
'<embed type="application/x-vlc-plugin" target="' + stream.uri + '"></embed>' +
'</body></html>');
}).listen(3030);
});
});
-
example2.js takes an IP address range, scans the range for ONVIF devices (brute force scan) and dsplays information about each device found including make and model. For Profile S Cameras and Encoders it displays the default RTSP address For Profile G Recorders it displays the RTSP address of the first recording
-
example3.js reads the command line cursor keys and sends PTZ commands to the Camera
Different cameras have different ONVIF implementation. I've tested this module only with a couple of devices. So if you got different problems with this library, please let me know via e-mail. Else please just send the model of your camera to me.
This page and API class documentation you can found here: http://agsh.github.io/onvif/
Short description of library possibilities is below.
Since 0.2.7 version library supports WS-Discovery of NVT devices. Currently it uses only Probe
SOAP method that just works well.
You can find devices in your subnetwork using probe
method of the Discovery singleton.
Discovery is an EventEmitter inheritor, so you can wait until discovery timeout, or subscribe on device
event.
Here some examples:
var onvif = require('onvif');
onvif.Discovery.on('device', function(cam){
// function will be called as soon as NVT responses
cam.username = <USERNAME>;
cam.password = <PASSWORD>;
cam.connect(console.log);
})
onvif.Discovery.probe();
var onvif = require('onvif');
onvif.Discovery.probe(function(err, cams) {
// function will be called only after timeout (5 sec by default)
if (err) { throw err; }
cams.forEach(function(cam) {
cam.username = <USERNAME>;
cam.password = <PASSWORD>;
cam.connect(console.log);
});
});
In all of that cases you've got disconnected cameras because to manage them you need tuple username:password
.
So, as shown in the examples, you can assign these properties and call connect
method to get full functionality.
Options
timeout
, number. Time the probe method will wait NVT responses in msresolve
, boolean. If this argument is false, all discovered NVTs would be presented as data object instead of Cam instance
device(cam, remoteInfo, responseXML)
fires on device discover.cam
is a Cam instance, remoteInfo is an object with network information and responseXML is a body of SOAP responseerror(error)
fires on some UDP error or on bad SOAP response from NVT
var Cam = require('onvif').Cam;
Options are:
- hostname
- username, password (optional, to deal with majority of functions)
- port (optional)
If the username and password are present, camera tries to connect automatically. Otherwise use connect
method.
Once again, without credentials you can execute only getSystemDateAndTime
method.
Callback (optional) executes when the cam is initialised. Single argument for this function is possible error.
When the cam object is created it automatically sends a getCapabilities
command to the ONVIF device. If the device is a camera or encoder (NVT) it sends two commands to the ONVIF device:
getVideoSources
and getProfiles
. It fills corresponding properties of an object:
- capabilities
- device
- events
- imaging
- media
- PTZ
- extension
- uri (this is a links to different NVT services)
- videoSources
- $.token
- framerate
- resolution
- profiles, array of profile object
- name
- videoSourceConfiguration
- videoEncoderConfiguration
- PTZConfiguration
After that it runs getActiveSources
method. It iterates over all video sources and tries to find out proper configuration
for profile and videosource. First matching profile becomes a member of defaultProfiles array and video source configuration
with ptz configuration becomes a member of activeSources array.
Configuration for the first or the only one video source becomes defaultProfile and activeSource properties. All methods without passing options object use it. You can change it manually at any time.
- defaultProfile (link to the first profile in profiles)
- activeSource (based on the default profile)
- sourceToken
- profileToken
- encoding
- width
- height
- fps
- bitrate
- ptz
Connect to the camera and fill device information properties with getCapabilities
, getVideoSources
, getProfiles
methods
See more detailed information at http://www.onvif.org/ver10/media/wsdl/media.wsdl
After cam initialisation we can run several ONVIF commands.
There are several common methods that work without credentials. Here are they: getSystemDateAndTime
.
Returns a Date object with current camera datetime in the callback.
Works without credentials (passed username
and password
arguments).
Device. Returns a device information, such as manufacturer, model and firmware version in the callback
Works without credentials (passed username
and password
arguments).
Device. Returns in callback and assigns to #services
property an array consists of objects with properties: namespace
, XAddr
, version
Device. Returns in callback and assigns to #serviceCapabilities
property the capabilities of the device service (not media):
network, security and system. If your device supports some auxiliary capabilities they will be there too.
Media. Returns a URI that can be used to initiate a live media stream using RTSP as the control protocol The options are:
stream
(optional) - defines if a multicast or unicast stream is requested. Possible values are: 'RTP-Unicast' (default), 'RTP-Multicast'protocol
(optional) - defines the network protocol for streaming. Possible values are: 'UDP', 'TCP', 'RTSP' (default), 'HTTP'profileToken
(optional) - defines media profile to use and will define the configuration of the content of the stream. Default is#activeSource.profileToken
Media. Obtain a JPEG snapshot URI from the device.
Returns the saved presets as an a key-value object where the key is the name of a preset and a value is a preset token.
This method also stores the presets information in a #presets
property of an object.
The options are:
profileToken
(optional) - defines media profile to use and will define the configuration of the content of the stream. Default is#activeSource.profileToken
Operation to go to a saved preset position for the PTZ node in the selected profile.
The options are:
profileToken
(optional) - defines media profile to use and will define the configuration of the content of the stream. Default is#activeSource.profileToken
preset
- the name of preset. List of presets you can get by#getPresets
method or in#presets
property.
PTZ. Returns the properties of the current PTZ node, if it exists.
Use this function to get maximum number of presets, ranges of admitted values for x, y, zoom, iris, focus.
Sets all information into #nodes
property.
PTZ. This is a relative pan-tilt-zoom method. Options for this method is a delta between desired and current position of the camera.
The options are:
-
x
Pan, number or a string within -1 to 1, optional -
y
Tilt, number or a string within -1 to 1, optional -
zoom
Zoom, number or a string within -1 to 1, optional -
speed
An object with propertiesx
Pan speedy
Tilt speedzoom
Zoom speed
If the speed option is omitted, the default speed set by the PTZConfiguration will be used.
Callback is optional and means essentially nothing
PTZ. This is an absolute pan-tilt-zoom method. Options for this method is an absolute position of the camera.
The options are:
-
x
Pan, number or a string within -1 to 1, optional -
y
Tilt, number or a string within -1 to 1, optional -
zoom
Zoom, number or a string within -1 to 1, optional -
speed
An object with propertiesx
Pan speedy
Tilt speedzoom
Zoom speed
If the speed option is omitted, the default speed set by the PTZConfiguration will be used.
Callback is optional and means essentially nothing
Operation for continuous Pan/Tilt and Zoom movements
The options are:
x
Pan velocity, number or a string within -1 to 1, optionaly
Tilt velocity, number or a string within -1 to 1, optionalzoom
Zoom velocity, number or a string within -1 to 1, optionaltimeout
Timeout in milliseconds, number. If timeout is omitted, movement will continue untilstop
command
PTZ. Stop ongoing pan, tilt and zoom movements of absolute relative and continuous type
Options and callback are optional. The options properties are:
profileToken
(optional) - defines media profile to use and will define the configuration of the content of the stream. Default is#activeSource.profileToken
panTilt
(optional) - set true when we want to stop ongoing pan and tilt movements. IfpanTilt
arguments are not present, this command stops these movements.zoom
(optional) - set true when we want to stop ongoing zoom movement. Ifzoom
arguments are not present, this command stops ongoing zoom movement.
PTZ. Returns an object with the current PTZ values.
{
position: {
x: 'pan position'
, y: 'tilt position'
, zoom: 'zoom'
}
, moveStatus: {} // camera moving
, utcTime: 'current camera datetime'
}
PTZ. Get all the existing PTZConfigurations from the device. Configurations saved into #configurations
property
PTZ. Get supported coordinate systems including their range limitations for selected configuration. Extends corresponding configuration object
- GetSystemDateAndTime
- GetCapabilities
- GetVideoSources
- GetProfiles
- GetServices
- GetDeviceInformation
- GetStreamUri
- GetSnapshotUri
- GetPresets
- GotoPreset
- RelativeMove
- AbsoluteMove
- ContinuousMove
- Stop
- GetStatus
- SystemReboot
- GetImagingSettings
- SetImagingSettings
- GetHostname
- GetScopes
- SetScopes
- GetRecordings
- GetReplayUri
- 0.5.1 Critical bugfix in SOAP-auth for some cams
- 0.5.0 Profile G support (@RogerHardiman), proper SOAP auth, nodejs support >= 0.12
- 0.4.2 Bugfixes
- 0.4.1 Improved discovery (@sousandrei, @RogerHardiman)
- 0.4.0 Encoder support (@chriswiggins), Imaging service (@EastL)
- 0.3.1 EventEmitter-based events
- 0.3.0 Refactoring, documentation, event service basics
- 0.2.7 WS-Discovery
WSDL schemes and docs:
- Operations index
- http://www.onvif.org/onvif/ver10/tc/onvif_core_ver10.pdf
- http://www.onvif.org/ver10/device/wsdl/devicemgmt.wsdl
- http://www.onvif.org/ver10/media/wsdl/media.wsdl
- http://www.onvif.org/ver20/ptz/wsdl/ptz.wsdl
- http://www.onvif.org/onvif/ver10/recording.wsdl
- http://www.onvif.org/onvif/ver10/replay.wsdl
- http://www.onvif.org/Portals/0/documents/WhitePapers/ONVIF_WG-APG-Application_Programmer's_Guide.pdf