Minimalistic plugin API for video effects

Current version

frei0r requires the following formulae to be installed:
autoconf 2.69 Automatic configure script builder
pkg-config 0.29.2 Manage compile and link flags for libraries
cairo 1.14.12 Vector graphics library with cross-device output support
opencv@2 Open source computer vision library

Reverse dependencies

The following formulae require frei0r to be installed:
mlt 6.4.1 Author, manage, and run multitrack audio/video compositions
ffmpeg@2.8 2.8.13 Play, record, convert, and stream audio and video
ffmpeg 3.4.1 Play, record, convert, and stream audio and video

Recent formula history

Michka Popoff frei0r: opencv@2 dependency has been migrated to core (#17113)
s172262 frei0r 1.6.1
Martin Afanasjew frei0r: add optional cairo and opencv dependency
Viktor Szakats frei0r: use secure homepage
Nikolaus Wittenstein Add descriptions to all remaining homebrew packages

Formula code at GitHub