Installation for the Linux users

First install the FFmpeg package using either Homebrew or a binary build. Then test that the software is properly installed. (The compilation from the source code is out of the scope of this tutorial.)

Installing the software with Homebrew

Homebrew

Install Homebrew, a package manger originally designed for macOS, that works now under Linux as well (and actually supersedes Linuxbrew). You can install Homebrew by pasting the following command at a Terminal prompt:

 

sh -c "$(curl -fsSL https://raw.githubusercontent.com/Linuxbrew/install/master/install.sh)"

 

Then add to your configurations file for the terminal sessions (which is usually ~/.bashrc or .zshrc) the following three lines:

 

echo 'export PATH="/home/linuxbrew/.linuxbrew/bin:$PATH"' >> ~/.bashrc

 

echo 'export MANPATH="/home/linuxbrew/.linuxbrew/share/man:$MANPATH"' >> ~/.bashrc

 

echo 'export INFOPATH="/home/linuxbrew/.linuxbrew/share/info:$INFOPATH"' >> ~/.bashrc

 

After successful installation you should restart the Terminal and execute:

 

brew doctor

 

Detailed instructions for Homebrew are posted at:
https://github.com/Homebrew/brew/blob/master/docs/README.md

FFmpeg

Once Homebrew is installed, for our purpose, we recommend building FFmpeg with the command:1

 

brew install varenc/ffmpeg/ffmpeg --with-openjpeg --with-rubberband --with-tesseract

Installing the software from a build

Please follow the instructions given at: ffmpeg.org/download.html

Testing your installation

Once you followed the installation above, you should have the commands ffmpeg, ffplay and ffprobe installed.

ffmpeg

Test ffmpeg by pasting into the Terminal the line:

 

ffmpeg -f lavfi -i mandelbrot -t 10 -pix_fmt yuv420p ~/Desktop/mandelbrot.mkv

 

This should produce on your Desktop a file of the Mandelbrot pattern.

ffplay

Test ffplay by pasting into the Terminal the line:

 

ffplay ~/Desktop/mandelbrot.mkv

 

This should play the Mandelbrot file.

ffprobe

Test ffprobe by pasting into the Terminal the line:

 

ffprobe -show_format -show_streams -print_format json ~/Desktop/mandelbrot.mkv

 

This should display the Mandelbrot file’s technical metadata.


Note

1

The recommended parameters are:

--with-openjpeg
Enables JPEG 2000 encoding and decoding with the OpenJPEG library.
--with-rubberband
Enables the Rubberband audio filter, which allows time-stretching and pitch-shifting.
--with-tesseract
Enables the Tesseract video filter for optical character recognition, e.g. for extracting intertitles or subtitles.

Additional information about this formula are available on Chris Varenhorst’s GitHub repository.


2019–02–16