Example
FFmpeg can be installed on a mixture of Operating Systems, including Unix and OS X. Using a command line extension, this utility can also be installed on Windows using a dll.
OS X
To install this utility on OS X, just head over to
ffmpeg.org, download the release relative to your Macs architecture (instructions on finding this can be found
here). Then put the application into an accessible directory and run it from command line.
Another way is using HomeBrew:
https://www.howtogeek.com/211541/homebrew-for-os-x-easily-installs-desktop-apps-and-terminal-utilities/
For example
brew install ffmpeg --with-fdk-aac --with-ffplay --with-libass --with-libvorbis --with-libvpx --with-rtmpdump --with-openh264 --with-tools
Windows
To install this utility on Windows, head over to [ffmpeg.org](https://www.ffmpeg.org/download.html#build-windows) and follow the download link, using your architecture. Instructions on finding this can be seen [here](http://answers.microsoft.com/en-us/windows/forum/windows_7-hardware/i-need-to-know-how-to-determine-my-processors/3ede9c69-25f5-427b-8e8d-e9dd2d032d22). Then place the downloaded software into an accessible directory and run from command line.
Unix
To install this utility on Unix, just follow the instructions found at [ffmpeg.org](https://www.ffmpeg.org/download.html#build-linux)
To check if ffmpeg is installed correctly and see a list of available commands try running the following command in the command line:
ffmpeg -help