Beyond Linux® From Scratch （systemd 版） - 版本 g1798b28

第 42 章 Multimedia Libraries and Drivers

libass-0.17.5

Introduction to libass

libass is a portable subtitle renderer for the ASS/SSA (Advanced Substation Alpha/Substation Alpha) subtitle format that allows for more advanced subtitles than the conventional SRT and similar formats.

[注意]

注意

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

Package Information

libass Dependencies

Required

FreeType-2.14.3 and FriBidi-1.0.16

Recommended

Fontconfig-2.18.1 and NASM-3.02

Optional

harfBuzz-14.2.1 and libunibreak

Installation of libass

Install libass by running the following commands: 

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

To test the results, issue: make check.

Now, as the root user: 

make install

Command Explanations

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

--disable-fontconfig: Use this switch if you didn't install Fontconfig.

Contents

Installed Programs: None
Installed Library: libass.so
Installed Directory: /usr/include/ass

Short Descriptions

libass.so

provides the functions used to render ASS/SSA subtitle format