Beyond Linux® From Scratch (systemd Edition) - Version 11.3

Chapter 42. Multimedia Libraries and Drivers

Libao-1.2.0

Introduction to Libao

The libao package contains a cross-platform audio library. This is useful to output audio on a wide variety of platforms. It currently supports WAV files, OSS (Open Sound System), ESD (Enlighten Sound Daemon), ALSA (Advanced Linux Sound Architecture), NAS (Network Audio system), aRTS (analog Real-Time Synthesizer), and PulseAudio (next generation GNOME sound architecture).

This package is known to build and work properly using an LFS 11.3 platform.

Package Information

Libao Dependencies

Optional

a graphical environment, ALSA-1.2.7, and PulseAudio-16.1

User Notes: https://wiki.linuxfromscratch.org/blfs/wiki/libao

Installation of Libao

Install libao by running the following commands: 

./configure --prefix=/usr &&
make

This package does not come with a test suite.

Now, as the root user: 

make install &&
install -v -m644 README /usr/share/doc/libao-1.2.0

Configuring Libao

Config Files

/etc/libao.conf and ~/.libao

Configuration Information

Currently, the only configuration option available is setting the default output device. Issue man libao.conf for details.

Contents

Installed Programs: None
Installed Libraries: libao.so and plugins under /usr/lib/ao/plugins-4
Installed Directories: /usr/include/ao, /usr/lib/ao and /usr/share/doc/libao-1.2.0

Short Descriptions

libao.so

provides functions for programs wishing to output sound over supported platforms