General Notes

Installation Notes

Before installing any ToolsOnAir application for macOS, open the “System Preferences” application and verify that the “Privacy & Security” setting is properly configured, as shown below. If required, you may revert the setting after the installation has succeeded.

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Version 2025.4.x Changes - just:live pro & just:play pro

• The restriction that the live input and output “device” must be the same (e.g. SDI, NDI®) has been lifted, enabling many more combinations such as SDI output with NDI live input or vice-versa. To this end, the engine configuration panel has been redesigned, with the “Streaming” tab and the device selection in the “Setup” tab now replaced by the “Input” and “Output” tabs allowing individual configuration for the input and output selectively, including the device to use.

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Config: Input selection

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Config: Output selection

• There is a new “Show video timecode where available” option in the Just Control application settings “Playout” tab . By default this is off, but when selected the video trimmers (both for the Library and the Inspector) and the Inspector fields for in- and out-points will display timecode relative to the video asset’s timecode track. So, for example, if the in-point is set to one second after the start of the video, and the video has a timecode track with the first frame specified as “10:00:00:00”, then the in-point in the inspector and trimmers would be shown as “10:00:01:00”.

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• When configuring the engine in the “Layers & Engines” tab, the “Setup” tab has a new “Output video timecode if available” checkbox. By default this is off, but when selected the timecode sent to the SDI output will be the timecode specified by the currently playing video instead of the Channel’s current clock time. Using the previous example, the first frame of the video would have the timecode “10:00:01:00” on the SDI output. This setting also affects the timecode shown in the Just Control user interface, as it shows the engine’s output timecode. So here the main timecode in the user interface would also show “10:00:01:00” instead of the current clock time. When the Just Out engine application is configured to output video timecode and the currently playing video doesn’t have a timecode track, or nothing is playing out, the output timecode shown will be “00:00:00:00” instead of the current Channel timecode.

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• When selecting an RGBA format, there are now two colourspaces available, one with the suffix “Pre-multiplied RGBA” and one with “Straight RGBA”. You can select the one most suited to the video mixer or downstream equipment that you are using as some will work with pre-multiplied RGBA, some will not, and some will accept both.

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• Added an additional option to output RTMP (or RTMPS) for streaming to YouTube, Wowza or other video servers. When configuring the output, there is an additional button for YouTube for quick configuration using the stream ID from YouTube.

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• Added HLS File output when configuring an engine’s output device. Selecting this writes an HLS manifest (.m3u8) and HLS file segments (.m4s) to the selected path and name.

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• Additionally, we have added a new “HLS Push” output, that can push HLS segments and manifest to a server via http or https, for example to YouTube. When configuring this output, there is a “YouTube” button to automatically configure the parameters for uploading to YouTube.When using this output please verify that your You Tube Live channel has the proper HLS Stream Key option activated, as the standard RTMP-based stream key will not accept any connection with this output setting.

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• After selecting the NDI output, it is now possible to select an RGBA mode in order to send video with alpha to a compatible receiver. This enables “Fill+Key” workflows using NDI® alpha.

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Version 2025.4.x Changes - just:live pro only

• There is a new “Clear, load and play” option for the “Double-click action” for just:live pro Channels. When selected, double-clicking an item on the Workbench will clear any items on the same layer (either on-air or scheduled in the timeline) and immediately play out the selected item.

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Version 2025.4.x Changes - just:play pro only

• If a Live Input is enabled for a Channel, it is now possible to preview the current input in the user interface even if it is not currently on air. To preview, simply select the “Live Input” object in the Library, open the Preview below the Library, move the mouse over the Preview area and click on the “Play” button just as you would do when previewing video, audio or FX files.

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Version 2025.3.x Changes - just:live pro & just:play pro

• Initial 2025.3 release with various performance improvement and macOS Tahoe certification.

Version 2025.1.1 Changes - just:live pro & just:play pro

• NDI Timecode Mode: When configuring and channel with NDI live input, there is a new “NDI Timecode Mode” setting in the “Streaming” tab in the engine’s configuration panel with the options “NDI UTC Timestamps” and “SMPTE Timecode”. The former expects frames with standard NDI UTC timestamps, as provided by the majority of NDI devices. The latter expects SMPTE timecode encoded as 100ths of a nanosecond. This may be useful in conjunction with some devices such as the AJA Bridge that take embedded SDI SMPTE timecode and converts it for use with NDI.

Version 2025.1 Changes - just:live pro & just:play pro

• Support for HTML based graphics: Version 2025.1 of just:live pro and just:play pro is set to modernize on-air graphics on macOS, with the support of dynamic HTML Graphics Template Rendering. This new capability seamlessly integrates with leading web-native platforms such as singular.live, Viz Flowics, SPX and others, providing broadcasters and live event producers with greater flexibility and creative control over graphics playout than ever before. This new functionality works alongside the graphics capabilities our customers have relied on since day one—whether it’s a simple station ID overlay or complex, animated multilayer real-time graphics created using our Composition Builder template editing application. Simply copy and paste the Output URL from a supported HTML graphics system into an available Infinite graphics track. Once an input is received, the Just Out engine instantly processes the given Output URL, allowing you to use the related web-based user interface to instantly take graphics on air, create new templates or modify existing ones in real time.
  
  

• HTTP Rest API: Just Connect now automatically publishes a HTTP REST API, which includes a new /playout/webSocket end-point to upgrade the connection to a webSocket for bidirectional async messaging and notifications. To access the documentation, open a browser to http://localhost:8080/swagger-ui/index.html (or the IP address of the machine running Just Connect instead of “localhost”, or use the button in the device settings in Just Control).
  
  

• Mixed frame rate support: The restriction on mixing clips with different timebases has been fully lifted, meaning that any video encoded with a “standard” broadcast timebase can be played on any channel. Frames are processed to match the channel’s timebase accordingly. In the Library, clips that do not match the channel’s frame rate are highlighted in yellow to indicate to the operator that a frame conversion will be applied once the clip is scheduled. Additionally, during preview, trimming, and after scheduling in the rundown, the correct duration—based on the channel’s frame rate—will be displayed in the Preview window, the Workbench, and the Inspector.
  
  

• New Processing Pipeline: The new version 2025.1 introduces an entirely new low-latency processing pipeline, significantly reducing the delay for most finished actions. This means that tasks such as jumping to the next item in just:play, starting, pausing or stopping media in just:live pro, or changing properties are reflected on-air much more quickly. Additionally, if an input source is too slow—such as when playing a movie from network-attached storage with an insufficient connection—the last valid frame will now be repeated until frames can be provided at the correct frame rate.
  
  

• Single (Buffered) Live Input method: In this new version, we refactored the buffered switch-to-live method compatible with video devices from AJA and BMD, as well as all supported streaming formats, including NDI, SRT, and UDP. This new method significantly reduces the delay added to the incoming signal when using the Buffered Input method, decreasing it from nearly 3 seconds to less than 12 frames. At the same time, it enhances stability and adds new features, such as the ability to view the incoming live signal in the On Air preview while playing out.
  
  

• Channel Format related color space and HDR support availability: With version 2025.1, full support has been introduced for Rec.601, Rec.709, and Rec.2020 color spaces, depending on the selected channel output format. Only the valid color spaces for the chosen format are enabled, with the default color space for that format automatically applied. With HDR-capable hardware and a selected UHD 10-bit format, it is now possible to play out in HDR HLG or HDR PQ, thus supporting Rec.2100 as well. This also includes the ability to switch to an HDR HLG/PQ live signal. To ensure optimal SDR-to-HDR and HDR-to-SDR conversion, we have added additional settings that allow you to define the maximum brightness of your movies and adjust how tone mapping is applied.
  
  

• Improved Audio support of SRT/UDP channels: SRT and UDP live input streams now support multiple audio tracks, with a total of up to 16 audio channels. For example, a stream with 8 stereo audio tracks will result in 16 audio channels for the live input.
  
  

• Improved NDI® Metadata support: Our macOS-based playout solution enable SCTE-104/35 insertion and Closed Caption (CEA-708) embedding in the final NDI output, ensuring seamless metadata processing.
  
  

• Improved Errors & Warning handling: We renamed the “Warnings and Errors” section in the Inspector to “Messages”. In addition, there is a new “Error display” option in Just Control’s settings to define, how messages and warnings are displayed in the multi-viewer. The new “Show icon in the lower bar” option shows a small warning icon in the Channel’s lower bar next to the timecode option button when the channel has any messages or warnings. Clicking on the button opens the “Settings” tab within the Inspector to show any messages. Using “Control-Click” will clear any messages for the channel. The “Show icon and status over the viewer” setting shows the “ERRORS” status with warning icons over the channel’s preview, as was the case in previous versions.
  
  

• New Online License Activation Process: just:live pro 2025 and just:play pro 2025 introduce the new Online License Activation Process already in use by the just:in mac solution line. One of the biggest benefits of this new online license activation method is its flexibility for multi-location companies. Whether operating across different offices, production sites, or live event locations worldwide, organizations can dynamically allocate their playout licenses as needed, ensuring optimal utilization of resources. Additionally, in the event of unexpected hardware failure, a license can be quickly reassigned to a replacement system, minimizing downtime and keeping critical workflows running—without the need for external support or manual intervention.

  With this new approach, just:live pro 2025 and just:play pro 2025 empower broadcast production professionals with a modern, hassle-free licensing solution that keeps operations agile, secure, and always ready for the next challenge. The process is straightforward, requiring just an internet connection and a valid license key upon the first activation.