OnvifDiscovery is a simple cross-platform library to discover ONVIF compliant devices.

OnvifDiscovery targets .NET Standard 2.0, so it can run on platforms:

• .NET core >= 2.0 (Windows, MacOS, linux)
• .NET Framework >= 4.6.1 (Windows)
• Mono >= 5.4 (Windows, MacOS, linux)
• Xamarin.iOS >= 10.14 (iOS)
• Xamarin.Mac >= 3.8 (MacOS)
• Xamarin.Android >= 8.0 (Android)

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OnvifDiscovery sends a probe message to all available network interfaces and waits the timeout specified in order to get the list of discovered onvif devices that replied to the probe message.

To use the library install and add a reference of the OnvifDiscovery nuget package, then call the discover method like the following sample:

// add the using
using OnvifDiscovery;

// Create a Discovery instance
var onvifDiscovery = new Discovery ();

// Call the asynchronous method Discover with a timeout of 1 second
var onvifDevices = await onvifDiscovery.Discover (1);

// Alternatively, you can call Discover with a cancellation token
CancellationTokenSource cancellation = new CancellationTokenSource ();
var onvifDevices = await onvifDiscovery.Discover (1, cancellation.Token);