Recently I’ve been watching a bunch of streams on Twitch, and was investigating the best options to stream from OS X. Sadly most of the ones I found were very expensive, until I saw that Open Broadcaster Software, which was previously only for Windows, was being rewritten to work with OS X and Linux. However, it’s still highly beta/under development and as a result, there’s not a lot of documentation on how to build it.

Here’s how I did it:

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brew install ffmpeg glew cmake qt5
git clone https://github.com/jp9000/obs-studio.git
cd obs-studio
mkdir cmbuild && cd cmbuild
export CMAKE_PREFIX_PATH=/usr/local/Cellar/qt5/5.2.1/lib/cmake
cmake .. && make
cpack

This will leave you with a disk image named obs-studio-x64-<sha1-hash>.dmg, which you can mount and install, just like any other OS X application.

Happy Streaming!