Beyond Linux® From Scratch (systemd Edition) - Version 12.1

Chapter 10. Graphics and Font Libraries

libavif-1.0.4

Introduction to libavif

The libavif package contains a library used for encoding and decoding AVIF files.

This package is known to build and work properly using an LFS 12.1 platform.

Package Information

libavif Dependencies

Required

libaom-3.8.1

Recommended

gdk-pixbuf-2.42.10

Optional

gtest, libdav1d, libyuv, rav1e, and svt-av1

Installation of libavif

Install libavif by running the following commands: 

mkdir build &&
cd    build &&

cmake -DCMAKE_INSTALL_PREFIX=/usr \
      -DCMAKE_BUILD_TYPE=Release  \
      -DAVIF_CODEC_AOM=ON         \
      -DAVIF_BUILD_GDK_PIXBUF=ON  \
      -G Ninja .. &&
ninja

This package does come with a test suite, but it requires gtest, which is not part of BLFS.

Now, as the root user: 

ninja install

The AV1 format needs to be added to the loaders cache. As the root user: 

gdk-pixbuf-query-loaders --update-cache

Command Explanations

-DAVIF_CODEC_AOM=ON: This switch enables using the AOM codec. This package is useless without at least one codec built in.

-DAVIF_BUILD_GDK_PIXBUF=ON: This switch builds the AVIF loader for applications which use gdk-pixbuf. Remove it if you have not installed gdk-pixbuf-2.42.10.

-DAVIF_CODEC_DAV1D=ON: Use this switch if you have installed libdav1d and wish to use it as a codec.

-DAVIF_CODEC_RAV1E=ON: Use this switch if you have installed rav1e and wish to use it as a codec.

-DAVIF_CODEC_SVT=ON: Use this switch if you have installed svt-av1 and wish to use it as a codec.

Contents

Installed Programs: None
Installed Libraries: libavif.so and libpixbbufloader-avif.so (in /usr/lib/gdk-pixbuf-2.0/2.10.0/loaders)
Installed Directories: /usr/include/avif and /usr/lib/cmake/libavif

Short Descriptions

libavif.so

contains functions that provide a portable C implementation of the AV1 Image Format

libpixbufloader-avif.so

allows applications which use gdk-pixbuf to read AVIF images