Beyond Linux® From Scratch (System V Edition) - Version r11.3-489

Chapter 42. Multimedia Libraries and Drivers

libaom-3.6.1

Introduction to libaom

The libaom package contains a reference version of the Alliance for Open Media video codec. This codec is a patent free alternative to H.265, and is starting to be used throughout the internet.

[Note]

Note

Development versions of BLFS may not build or run some packages properly if dependencies have been updated since the most recent stable versions of the book.

Package Information

libaom Dependencies

Recommended

yasm-1.3.0 (or NASM-2.16.01, pass the -DENABLE_NASM=yes option to cmake if you want to use it instead of yasm)

Optional

Doxygen-1.9.6

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

Installation of libaom

Install libaom by running the following commands: 

mkdir aom-build &&
cd    aom-build &&

cmake -DCMAKE_INSTALL_PREFIX=/usr \
      -DCMAKE_BUILD_TYPE=Release  \
      -DBUILD_SHARED_LIBS=1       \
      -DENABLE_DOCS=no            \
      -G Ninja .. &&
ninja

To test the results, issue: ninja runtests. Note that the tests take an extremely long time to run.

Now, as the root user: 

ninja install &&
rm -v /usr/lib/libaom.a

Command Explanations

-DBUILD_SHARED_LIBS=1: This switch builds shared versions of the libraries.

-DENABLE_DOCS=no: This switch disables building the documentation because it fails due to an incompatibilty with the latest version of Doxygen-1.9.6.

-DENABLE_NASM=yes: Use this switch if you have NASM-2.16.01 installed and wish to use it instead of yasm.

Contents

Installed Programs: None
Installed Libraries: libaom.so
Installed Directories: /usr/include/aom

Short Descriptions

libaom.so

contains functions that provide a reference implementation of the AV1 codec