Beyond Linux® From Scratch (System V Edition) - Version r11.2-1338

Chapter 42. Multimedia Libraries and Drivers

Speex-1.2.1

Introduction to Speex

Speex is an audio compression format designed specifically for speech. It is well-adapted to internet applications and provides useful features that are not present in most other CODECs.

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

Package Information

Additional Downloads

Speex Dependencies

Required

libogg-1.3.5

Optional

Valgrind-3.20.0

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

Installation of Speex

This package consists of two separate tarballs. They need to be extracted and built independently.

Install Speex by running the following commands: 

./configure --prefix=/usr    \
            --disable-static \
            --docdir=/usr/share/doc/speex-1.2.1 &&
make

This package does not come with a test suite.

As the root user: 

make install

Now extract and install the speexdsp package: 

cd ..                          &&
tar -xf speexdsp-1.2.1.tar.gz &&
cd speexdsp-1.2.1             &&

./configure --prefix=/usr    \
            --disable-static \
            --docdir=/usr/share/doc/speexdsp-1.2.1 &&
make

Again, as the root user: 

make install

Command Explanations

--disable-static: This switch prevents installation of static versions of the libraries.

Contents

Installed Programs: speexenc and speexdec
Installed Libraries: libspeex.so and libspeexdsp.so
Installed Directories: /usr/include/speex and /usr/share/doc/speex-1.2.1

Short Descriptions

speexdec

decodes a Speex file and produces a WAV or raw file

speexenc

encodes a WAV or raw file using Speex

libspeex.so

provides functions for the audio encoding/decoding programs

libspeexdsp.so

is a speech processing library that goes along with the Speex codec