ZEN NDI Software apps

Current versions of the ZEN utilities for NDI®, for Windows (only), including:-
NDI® Cutter
NDI® Drag&Drop Image Viewer
NDI® Dual False-Colour Monitor
NDI® Graduated Background Generator
NDI® No-Audio Meter
NDI® PA Prompt
NDI® Router
NDI® RTx Receiver/Transmitter

NDI® Logo/Bug Playerv1.0.1.6
ReadMe FilePreviously

The NDI® “Bug Player” is intended for the playback of image sequences (with transparency) as an NDI source using RGB+Alpha video encoding. Typically it can take small images and position them within a bigger canvas, preserving the pixel dimensions of the source images within the NDI output (i.e. with no degradation from image scaling). Sequences can be played in various modes (forward, reverse, oscillate), in either one-shot, continuous or timed play/pause modes.

ZEN NDI® Cutter
ReadMe FilePreviously
Download v0.3.0.9

A simple cuts-only switcher for NDI® streams – no scaling, no framerate conversion. For the audio, you select one input as the Master audio, but if you want the audio to change to particular inputs when selected, then enable the AFV (audio follow video) button for that input.

ZEN NDI® Drag&Drop
Image Viewer
ReadMe FilePrevious
Download v1.1.0.10
ZEN NDI Drag & Drop Image Viewer

Image files can be drag&dropped onto the preview window to output them as an NDI® source, with an optional background, either solid black, 2-colour graduated fill, transparent, or user-supplied (by frame grabbing the current output). Different scaling modes are available for the source images, which can include an optional crossfade transition when loaded. Images are centred on the output and maintain their original aspect ratio in all modes. A “Watch” mode will reload the current image file whenever it is modified. Image formats supported include bmp, gif, png & tif files, at up to 32bit/pixel (i.e. including transparency).

False Colour Monitor
ReadMe FilePreviously
Download v1.0.3.10

Dual channel NDI® video monitors with optional WFM (WaveForm Monitor) and False Colour display modes, selectable from two different LUTs. Supports NDI tally signals. 2×1 & 2×2 layouts available.

NDI® Graduated
Background Generator
ReadMe File Previously

The basic functionality is in generating a 4-way gradient-filled image using selectable colours for the four corners of the rectangle, although pairs can be set to the same value in order to achieve a simple 2-way gradient. The gradient image can either remain static or the colours can rotate in a clockwise (CW) or anticlockwise (CCW) direction, with variable rotational speed. Greyscale masks can be imported as alpha channels, as pictured above.

ZEN NDI® No-Audio Meterv1.3.1.23
ReadMe File (incomplete for v1.3)
Download v1.3.0.22

A simple Red-Amber-Green audio display designed to a provide an alert when the audio level of the selected NDI® audio stream falls below a certain level. Detection thresholds can be adjusted and the No Audio state both flashes red and generates audio beeps. Also detects of breaks in the stream from the selected NDI® source. Revised version 1.2.0.x now includes a video preview window and has a number of ways to generate “no audio” alerts, including control of USB relays and via NDI®. 

ZEN NDI® PA Prompt
ReadMe FilePreviously
Download v0.9.0.2

A simple text generator for creating subtitle-style captions as an NDI® stream.

ZEN NDI® Router
& Remote Panel
ReadMe FileRouter
Download v1.4.1.29

An NDI® Router (Matrix Switch) which uses the Routing functions introduced in v2.0 of the NDI SDK. These functions allow the creation of software routers for NDI® signals which can effectively switch between NDI® sources with no added latency to the switched NDI® stream and virtually zero CPU usage. 
The router can be configured on start-up to have anywhere from 6 to 20 inputs and from 2 to 24 outputs. Routing Preset buttons store groups of switch positions, allowing multiple outputs to be switched with one button click. Config files can be saved and loaded, including “save last used on exit” and “load last used on start-up” options. Config files include the data for Routing Presets and for the NDI® sources used by each input.
The current version includes support for the XKeys XK-24 & XKE-40, and also includes the Router Remote application. This is a network client which connects to the TCP server in the main Router, and adopts a similar looking user interface, including the same local XKeys support, allowing the Router to be controlled and monitored from up to four additional locations.  The TCP server also allows for remote control by other devices (eg Elgato Stream Deck via Bitfocus Companion, and by Joe de Max’s Central Control).

ReadMe File & notes

NDI-RTx was created because I wanted something to run on a remote PC to perform an “NDI® loopback” so I could monitor the effects of a round-trip over a network, measured on the same PC as the NDI® source, something equivalent to a “Relay” or “Repeater” transmitter (as used in TV/Radio transmission).
The current edition includes extra processing functions, including a freeze-frame function, audio delay, audio channel re-mapping & gain, local audio monitoring and a video confidence monitor, an overlay function (for adding static or animated image sequences), de-interlacing, image rotation/flipping, and includes the option of converting the video (+alpha) output into AirSend mode to allow older Tricaster models to make use of NDI® sources (eg from graphics systems), or of creating separate NDI® “Key & Fill” outputs from RGBA sources.

If you find these applications useful, please consider making a donation and help to support further development.