|Original author(s)||Denis Rojo (Jaromil)|
|Developer(s)||Denis Rojo (Jaromil)
Silvano Galliani (kysucix)
|Initial release||May 22, 2001|
|Stable release||0.10 / May 30, 2008|
|Preview release||0.11 / September 8, 2013|
|Operating system||Linux v0.11 and v0.10, Darwin/Mac OS X v0.10|
|Type||Digital video compositing|
|License||GNU General Public License v3+|
FreeJ is a modular video mixer for GNU/Linux systems, dubbed a "vision mixer" by the authors of the software. It is capable of real-time video manipulation, for amateur and professional uses. It can be used as an instrument in the fields of dance theater, veejaying, medical visualisation, and television. FreeJ supports the input of multiple layers of video footage, which can be filtered through special-effect-chains, and then mixed for output.
Denis Rojo (aka Jaromil) is the original author, and as of 2013 is the current maintainer. Since 0.7 was released,[when?] Silvano Galliani (aka kysucix) joined the core development team, implementing several new enhancements.
FreeJ can overlay, mask, transform and filter multiple layers of footage on the screen. It supports an unlimited number of layers that can be mixed, regardless of the source. It can read input from varied sources: movie files, webcams, TV cards, images, renders and Adobe Flash animations.
FreeJ can produce a stream to an icecast server with the video being mixed and audio grabbed from soundcard. The resulting video is accessible to any computer able to decode media encoded with the theora codec.
The console interface of FreeJ is accessible via SSH and can be run as a background process. The remote interface offers simultaneous access from multiple remote locations.
- Feature list
- live composition of multiple sources including webcams, TV signals, movie filters, images, .txt files, particle generators
- remotely controlled access (Vjoe)
- playback of Adobe Flash vector animations
- zero frame drop when looping movie clips
- Emacs or Vi style console with hotkeys (S-lang)
- accepts asynchronous controllers at the same time like MIDI and joystick
- multithreaded video engine with low overhead
- 100% free software, under the GNU General Public License
- modular C/C++ code and flexible API
- uses multicore processors (multithreading)
While originally written for art productions, FreeJ is billed as a more general purpose tool. The website offers FreeJ for a very diverse market, ranging from video performance artist to medical visualization technologies. It has been used in the past[when?] in media server systems.
- Netherlands Media Art Institute (NIMk)
- Big M VJ festival
- Visual Sensations VJ festival
- Sonar festival Barcelona (exibart)
- Piksel festival Norway
- Digitale Pioniers
- freej videos uploaded on vimeo