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Action! - Gameplay Recording and Streaming News

YouTube HDR live streaming is now possible!



We are proud to officially announce that after 3 months of hard work with awesome people from YouTube Team we are ready with HLS HDR live streaming! YouTube is currently the only live streaming platform to support this feature.

You can read more about this big event here:
https://blog.youtube/news-and-events/seeing-believing-launching-hdr-live-streams/
and here:
https://support.google.com/youtube/answer/10265272

Yesterday, YouTube has unblocked HLS HDR streaming support for everyone so you can try it right away! (Action v4.12.2 or newer is needed)

And with Action 5 Scene Maker you will be able to create complex live streams with top quality, performance and effects like in a real TV studio.

Thank you for supporting us. YOU all are part of this success and technology breakthrough.

Mirillis Team

Action! 5 COMING SOON

Hi Everyone!

First of all we are sorry for not being active for the past few months as we have been busy improving Action 4 and preparing Action 5!
We are super excited with this new version as it will be our ultimate app dedicated even for the most demanding users!

A short intro:

Action 5 will be available in two trims:
- Action 5 Basic, which follows the line of Action 4 being a simple, yet powerful screen and game recording app (with basic streaming functionality)
- Action 5 Scene Maker a separate app with much more features for advanced streaming and recording.

We are going to release Action 5 in phases:
PHASE 1: Action 5 Basic will include a new AI powered (software and hardware accelerated) camera background removal algorithm (December 2020)
PHASE 2: Action 5 Scene Maker will be available for testing via Steam Playtest (Q1 2021)
PHASE 3: A streaming overlay themes pack will be added with many cool graphic compositions (Q2 2021)

Last but not least new screenshots from Action 5!



Mirillis Team

Action 4.10.0 with 8K HDR recording is ready!



Hi creators and gamers!

Today we have uploaded version 4.10.0 with 8K and 8K HDR video recording support! We are now ready for the future as we can squeeze up to 45fps of 8K video using RTX 2080 GPU. 8K also works for newest Intel GPUs. Of course GPUs are not capable of 8K gaming today but it is just a matter of time. We are eagerly waiting to get our hands on Nvidia RTX 3000 family of GPUs and hope to reach 60fps 8K HDR video capture soon.

Below a list of changes in this version:
  • NEW easy to use selected application window recording/streaming and recording/streaming of multiple desktops in a single video (link to video tutorial is available below)
  • Added support for 8K MP4 video capture for newest Intel and Nvidia GPUs
  • Fixed system/driver crash after hardware PlayReady 3.0 DRM is enabled with Action running
  • Fixed 240fps recording in HDR mode
  • Fixed Vulkan HDR capturing in active screen mode
  • Stability improvements


Presented feature requires Windows 10 version 1903 (or newer)
[previewyoutube][/previewyoutube]

Happy content creation and have a great summer everyone,
Mirillis Team

Action! 5.0 with Scene Maker development progress

Hi everyone!

We are intensively working on Action 5 with Scene Maker. A sneak peek on work in progress below:



We have also updated Action to version 4.8.1 that includes a critical fix for live HDR preview. A recent update of Steam's gameoverlayrenderer.dll was causing Action to crash just after entering Preview with HDR10 encoder selected.

Other changes are listed below:
  • Added 240fps video capture (Use with caution! May not work on all system configurations and in HDR. Not recommended above 1080p)
  • Important fix for constant frame rate (CFR) recording/streaming when CPU/GPU loads are high
  • Further stability fixes/improvements for DirectX 10/11/12 capturing when Alt+Tab (entering/leaving fullscreen mode) is being used
  • Fixed wrong HDR detection after using Alt+Tab (entering/leaving fullscreen mode) in some situations
  • Added new 1440p and 2160p predefined video size profiles
  • Fixed application hanging after URL source enabling/disabling (using tick button or hotkey)
  • Fixed some URL sources not displaying properly


For those who are new to Action, you do not need to worry about corrupted MP4 recordings since Action is the only solution that can recover them even after system crash/BSODs or any other disaster (well maybe not after a meteor crash).

Take care and stay safe,
Mirillis Team

Action 4.7.0 with World's first JPEG XL screenshots capturing in HDR is ready!


Hi creators and gamers!

Today we bring you Action! v4.7.0 with another World's first: JPEG XL true HDR10 screenshots capturing!
From now on not only you can create great looking HDR10 videos using Intel, Nvidia or AMD GPUs but also be ready for the future of amazing HDR still image creation!
The web browsers like Chrome, Edge and others with JPEG XL (JXL) support are only a few steps away and with Action! 4.7.0 you will be ready and ahead of the others.

Let us explain how it works in a few simple and easy steps:
  • Action! automatically detects HDR video content
  • When you push create screenshot hotkey (default F12) when HDR video is visible on your screen two screenshots are made at the same time. One is an SDR tone mapped screenshot (BMP, PNG or normal JPEG) and the other a true HDR10 JPEG XL (JXL extension) still image
  • To view it just go to the screenshots tab and the HDR screenshot will there waiting for you with a small icon on it telling that it is the HDR one
  • Double click it and our free JPEG XL HDR10 viewer will display the screenshot in true HDR colors! (HDR display is needed of course)
  • You can share the screenshots along with the viewer to anybody (just send the jxlcodec_view.exe and jxlcodec.dll files that are located in your Action!'s Steam installation folder)
  • The viewer can be assigned in Windows to open any JXL files by default
  • A more advanced standalone application for JPEG XL viewing will be available from us for free soon!


We are very excited that we can enter this wonderful HDR future with you!

And as a bonus soon with Action! you will be able to create panoramic 360 HDR still images from ANY First Point Of View game! Sounds amazing, doesn't it?

Below a list of other improvements in version 4.7.0 (and also 4.5.0 and 4.6.0):
  • Microphone volume boost to 200% level is now possible
  • HUD is now rendered in true HDR for HDR desktop and HDR games using 64 bits per pixel color
  • Fixed Alt+Tab crashing in some DirectX 10/11 games and applications
  • Improved ST.2084/BT.2020 HDR10 video signaling
  • Fixed randomly corrupted (green) recordings using hardware accelerated HEVC encoding on Nvidia GPUs
  • Fixed maximum allowed AMD AMF (VCE 1.0 to 4.1) video encoder resolution

  • Fixed active screen switching (on accounts without administrator rights)
  • Fixed desktop capture on multi-GPU systems (on accounts without administrator rights)
  • Fixed cursor position when recording regions on multiple desktops (other than primary)
  • Fixed desktop capture when non-native resolution with non-native aspect ratio is selected
  • Fixed Vulkan HUD not refreshing when recording/streaming is started
  • Fixed support for very long streamkeys (used by Booyah live streaming service)
  • Fixed not detecting specific applications as active
  • Reduced minimum streaming bitrate value for 60fps
  • OpenGL capture fixes


Mirillis Team