Software & AppsOperating SystemLinux

How To Fix “Unknown option “–enable-libfaad” ERROR: libfaac not found” While Configuring FFMPEG

Ubuntu 8

In this article, we will be addressing a common error encountered while configuring FFmpeg: “Unknown option “–enable-libfaad” ERROR: libfaac not found”. This error can be quite frustrating, but with the right guidance, it can be resolved efficiently.

Quick Answer

To fix the "Unknown option "–enable-libfaad" ERROR: libfaac not found" error while configuring FFmpeg, you need to remove the unknown option "–enable-libfaad" from your configuration command and install the missing library "libfaac-dev" using the command "sudo apt-get install libfaac-dev".

Understanding the Error

Before diving into the solution, it’s important to understand what the error message is telling us. The error “Unknown option “–enable-libfaad” ERROR: libfaac not found” typically occurs during the configuration stage of FFmpeg installation. It suggests that the system is unable to find the library ‘libfaac’ and doesn’t recognize the option ‘–enable-libfaad’.

FFmpeg is a free and open-source software project consisting of a vast software suite of libraries and programs for handling video, audio, and other multimedia files and streams. libfaac is one of the libraries used by FFmpeg.


Before we start, make sure you have root access to your server or machine. You will also need to have the libfaac-dev package installed on your system. If not, you can install it using the following command:

sudo apt-get install libfaac-dev

This command uses the sudo keyword to execute the command with root privileges. apt-get is the package handling utility in Ubuntu, and install is the command to install a new package. libfaac-dev is the name of the package we want to install.

Fixing the Error

Step 1: Remove Unknown Options

The first part of the error message refers to an “unknown option”. This means that the option --enable-libfaad is not recognized. To fix this, simply remove the --enable-libfaad option from your configuration command.

Step 2: Install the Missing Library

The second part of the error message indicates that the system is unable to find the libfaac library. To fix this, you need to install the libfaac-dev package using the command mentioned in the prerequisites.

Step 3: Reconfigure FFmpeg

After installing the missing library and removing the unknown option, you should be able to configure FFmpeg without encountering the error. Run the configure command again and check if the error persists.


In this article, we have discussed how to fix the “Unknown option “–enable-libfaad” ERROR: libfaac not found” error while configuring FFmpeg. We hope this guide has been helpful. For more detailed instructions and troubleshooting tips, you can refer to the Ubuntu Compilation Guide for FFmpeg.

Remember, it’s always important to keep your system and its packages up-to-date. Regular updates not only provide new features and improvements but also fix bugs and potential security issues.

What is FFmpeg?

FFmpeg is a free and open-source software project that provides a collection of libraries and programs for handling multimedia files and streams, including video and audio. It allows you to convert, encode, decode, transcode, and stream various media formats.

How does FFmpeg work?

FFmpeg works by using a command-line interface (CLI) to execute various commands and options for manipulating multimedia files. It uses different libraries and codecs to process and transform audio and video data.

What is libfaac?

libfaac is a library used by FFmpeg to handle audio encoding using the Advanced Audio Coding (AAC) format. It provides functionality for converting audio data into AAC format, which is commonly used for high-quality audio compression.

Why am I getting the error “Unknown option “–enable-libfaad” ERROR: libfaac not found”?

This error occurs when the system is unable to find the libfaac library and does not recognize the option "–enable-libfaad" during the configuration of FFmpeg. It can be fixed by installing the libfaac-dev package and removing the unknown option from the configuration command.

How can I install the libfaac-dev package?

You can install the libfaac-dev package on Ubuntu by using the command sudo apt-get install libfaac-dev. This command will install the necessary files and dependencies for libfaac development.

What should I do if the error persists after installing the libfaac-dev package and removing the unknown option?

If the error persists, you may need to check if there are any other missing dependencies or conflicting libraries on your system. You can refer to the FFmpeg documentation or seek help from the FFmpeg community for further troubleshooting.

Leave a Comment

Your email address will not be published. Required fields are marked *