Joy1792 / KlakNDI

NewTek NDI™ plugin for Unity

Home Page:http://ndi.newtek.com

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KlakNDI

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KlakNDI is a Unity plugin that allows sending/receiving video streams between several devices using NDI®.

NDI® (Network Device Interface) is a standard developed by NewTek, Inc that enables applications to deliver video streams via a local area network. Please refer to ndi.tv for further information about the technology.

System Requirements

  • Unity 2021.3 or later

Desktop platforms:

  • Windows: x64, D3D11/D3D12
  • macOS: x64 or arm64 (M1), Metal
  • Linux: x64, Vulkan

Mobile platforms:

  • iOS: arm64, Metal
  • Android: arm64, Vulkan

KlakNDI runs without the NDI SDK on most supported platforms, but only the iOS platform requires the SDK to build on Xcode. Please download and install the NDI SDK for iOS in advance of building.

License

The NDI library files are provided under the terms of the NDI SDK license. Please review it before using the package in your project.

Known Issues and Limitations

  • Dimensions of frame images should be multiples of 16x8. This limitation causes glitches on several mobile devices when using the Game View capture method.

  • KlakNDI doesn't support audio streaming. There are several technical difficulties to implement without perceptible noise or delay, so there is no plan to implement it.

How To Install

This package uses the scoped registry feature to resolve package dependencies. Open the Package Manager page in the Project Settings window and add the following entry to the Scoped Registries list:

  • Name: Keijiro
  • URL: https://registry.npmjs.com
  • Scope: jp.keijiro

Scoped Registry

Now you can install the package from My Registries page in the Package Manager window.

My Registries

NDI Sender Component

send

The NDI Sender component (NdiSender) sends a video stream from a given video source.

NDI Name - Specify the name of the NDI endpoint (only available in the Camera/Texture capture method).

Keep Alpha - Enable this checkbox to make the stream contain the alpha channel. You can disable it to reduce the bandwidth.

Capture Method - Specify how to capture the video source from the following options:

  • Game View - The sender captures frames from the Game View.
  • Camera - The sender captures frames from a given camera. This method only supports URP and HDRP.
  • Texture - The sender captures frames from a texture asset. You can also use a render texture with this option.

You can attach metadata using the C# .metadata property.

NDI Receiver Component

recv

The NDI Receiver component (NdiReceiver) receives a video stream and feeds it to a renderer object or a render texture asset.

NDI Name - Specify the name of the NDI source. You can edit the text field or use the selector to choose a name from currently available NDI sources.

Target Texture - The receiver copies the received frames into this render texture asset.

Target Renderer - The receiver overrides a texture property of the given renderer.

You can extract metadata using the C# .metadata property.

Tips for Scripting

You can enumerate currently available NDI sources using the NDI Finder class (NdiFinder). See the Source Selector example for usage.

You can instantiate the NDI Sender/Receiver component from a script but at the same time, you have to set an NDI Resources asset (NdiResources.asset). See the Sender Benchmark/Receiver Benchmark examples for details.

About

NewTek NDI™ plugin for Unity

http://ndi.newtek.com

License:Other


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