Pre-release: OnTheAir Video 4.6

About pre-releases (read me!)

Before you download and use a pre-release version, make sure to check the READ ME article to know how to use pre-release versions and their limitations.

WARNING! Early beta with major changes in the playback engine.

This version of OnTheAir Video with HDR and SRT input is an early beta and includes significant changes to the playback engine. It may be less stable than other pre-releases, so please use it with extra caution. Issues may occur.

Download links

OnTheAir Video Version 4.6.0b17 (24 September 2025)

Release Notes

What's new in OnTheAir Video?

• NEW: Added support for HDR output.
• NEW: Added support for SRT Stream Clips (Work in progress - Requires the Softron Streaming Pack option to be activated with Streaming Center 2.0, using the new license activation system)
• NEW: Added support for Macnica MEP100 card (Work in Progress - Drivers 1.1.2 -  FPGA efcc9de83b60453f2025070200153152 required)
• IMPROVED: REST API now has ability to open, close, and reorder Dynamic Graphics Overlay projects

Known limitations

HDR formats

OnTheAir Video only supports HDR static metadata packing, with HLG and PQ transfer characteristics. Dolby Vision is supported, when using HLG or PQ.

 

Output settings

HDR currently only works with Blackmagic-Design devices, and with the "Smart Resize and Graphics" option enabled. Make sure also to set the pixel format to YUV 10bit.

ARGB is not yet supported in HDR.

Codecs limitations

This version of OnTheAir Video includes all the features of the standard 4.5 release, with the addition of HDR support. To implement HDR, we made significant changes to how video files are decoded and how output formats are handled. Not all formats are supported at this time—only ProRes and HEVC have been fully tested, especially for HDR playback.

Conversions between formats

Please note that there is currently no automatic conversion between SDR and HDR formats. Each clip will be output using its original color primaries. Format conversion is planned for a future update.

Transitions

Transitions are not fully supported. There may be glitches, particularly when going from one SDR/HDR format to another.

 

Graphics (Dynamic Graphics Overlay)

CG Projects (when using the Dynamic Graphics Overlay option) will not have the appropriate colors when using HDR.