As a plugin API, Frei0r's main emphasis is on simplicity, to round up the most common video effects into simple filters, sources, and mixers that can be controlled by parameters. Frei0r plugins can be shared by many host applications, avoiding duplicate efforts by different projects. Frei0r is not meant as a competing standard to more ambitious efforts trying to satisfy the needs of many different applications and more complex effects, as it doesn't provides things like an extensive parameter mechanism or event handling.
| Tags | Video Plugins effects Mixers Filters |
|---|---|
| Licenses | GPL |
| Operating Systems | GNU/Linux BSD OS X and Windows XP/Vista/W7 |
| Implementation | C C++ |
Recent releases


Release Notes: This release fixes several major bugs in existing plugins and adds 20 new plugins, some of them optional with a dependency on the Cairo library. The new filters are: IIRblur, Vignette, Keyspillm0pup, Timeout, Posterize, Dither, Spillsupress, Emboss, Colgate, RGBNoise, Colorize, Softglow, ColrHalftone, Sigmoidaltransfer, Colortap, Cairogradient, Cairoimagegrid, and Medians. There are also two new mixers: Cairoblend and Cairoaffineblend.


Release Notes: This release adds more plugins, enhances documentation, and provides fixes to filters using OpenCV. New plugins include: sharpness, denoise, lightgraffiti, test_pat, addition_alpha, and a tutorial filter.


Release Notes: This is a bugfix release to avoid a crash on load of the Vertigo plugin. The install path was also corrected according to distribution needs.


Release Notes: This release adds many new filters, cross-platform compatibility to build Win32 plugins, some fixes to the specification, a new Web page, and more documentation.


Release Notes: Three new plugins were added: UV Map, Edge Glow, and K-Means Clustering. Various bugfixes were done.