Beyond Linux® From Scratch (systemd Edition) - Version r13.0-1289

Chapter 42. Multimedia Libraries and Drivers

x265-4.2

Introduction to x265

x265 package provides a library for encoding video streams into the H.265/HEVC format.

[Note]

Note

This package is known to build and work properly using an LFS 13.1 platform.

Package Information

x265 Dependencies

Required

CMake-4.4.2

Recommended

NASM-3.02

Optional

numactl

Installation of x265

First, fix building this package for 32-bit platforms: 

sed -i 's/FORMAT_ELF/UNIX64 \&\& FORMAT_ELF/' source/common/x86/cpu-a.asm

Install x265 by running the following commands: 

mkdir bld &&
cd    bld &&

cmake -D CMAKE_INSTALL_PREFIX=/usr        \
      -D GIT_ARCHETYPE=1                  \
      -W no-author                        \
      ../source                           &&
make

This package does not come with a test suite.

To install the package, first remove any old library versions. After installation, remove a static library. As the root user: 

make install &&
rm -vf /usr/lib/libx265.a

Command Explanations

-D GIT_ARCHETYPE=1: This switch is needed because the build system will not generate a pkg-config file or install a shared library unless git-2.55.0 is installed. Git isn't required for anything else in this package, so this switch is used to work around it for users who do not want to install Git as a build dependency.

-W no-author: This switch is used to suppress warnings intended for the package developers.

rm -vf /usr/lib/libx265.a: BLFS does not recommend using static libraries.

Contents

Installed Program: x265
Installed Library: libx265.so
Installed Directories: None

Short Descriptions

libx265.so

provides the functions used to encode video streams into the H.265/HEVC format