Beyond Linux® From Scratch (systemd edition) - Version 8.1

Chapter 10. Graphics and Font Libraries

libwebp-0.6.0

Introduction to libwebp

The libwebp package contains a library and support programs to encode and decode images in WebP format.

This package is known to build and work properly using an LFS-8.1 platform.

Package Information

libwebp Dependencies

Recommended

libjpeg-turbo-1.5.2, libpng-1.6.31 and LibTIFF-4.0.8

Optional

Freeglut-3.0.0 and giflib-5.1.4

User Notes: http://wiki.linuxfromscratch.org/blfs/wiki/libwebp

Installation of libwebp

Install libwebp by running the following commands:

[Note]

Note

If you are updating from libwebp-0.4.x or 0.5.x, and wish that installed applications link to the new version 0.6.x, they need to be reinstalled. 

./configure --prefix=/usr           \
            --enable-libwebpmux     \
            --enable-libwebpdemux   \
            --enable-libwebpdecoder \
            --enable-libwebpextras  \
            --enable-swap-16bit-csp \
            --disable-static        &&

make

This package does not come with a test suite.

Now, as the root user: 

make install

Command Explanations

--enable-swap-16bit-csp: This switch enables byte swap for 16 bit colorspaces.

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

Contents

Installed Programs: cwebp, dwebp, gif2webp, vwebp, and webpmux
Installed Library: libwebpdecoder.so, libwebpdemux.so, libwebpextras.so, libwebpmux.so, and libwebp.so
Installed Directory: /usr/include/webp

Short Descriptions

cwebp

compresses an image using the WebP format.

dwebp

decompresses WebP files into PNG, PAM, PPM or PGM images.

gif2webp

converts a GIF image to a WebP image.

vwebp

decompress a WebP file and display it in a window.

webpmux

creates animated WebP files from non-animated WebP images, extracts frames from animated WebP images, and manages XMP/EXIF metadata and ICC profile.

libwebp.so

contains the API functions for WebP encoding and decoding.

Last updated on 2017-08-21 23:29:00 -0700