Beyond Linux® From Scratch (systemd Edition) - Version 11.0

Chapter 10. Graphics and Font Libraries

libwebp-1.2.1

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-11.0 platform.

Package Information

libwebp Dependencies

Recommended

libjpeg-turbo-2.1.1, libpng-1.6.37, libtiff-4.3.0, and SDL-1.2.15 (for improved 3D Acceleration)

Optional

Freeglut-3.2.1 and giflib-5.2.1

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

Installation of libwebp

Install libwebp by running the following commands: 

./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, img2webp, vwebp, webpinfo, and webpmux
Installed Library: libwebpdecoder.so, libwebpdemux.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

img2webp

creates an animated WebP file from a sequence of input images

vwebp

decompresses a WebP file and displays it in a window

webpinfo

prints out the cunk level structure of WebP files along with performing basic integrity checks

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

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