libjpeg-turbo-1.3.0
Introduction to libjpeg-turbo
libjpeg-turbo is a fork of the
original IJG libjpeg which uses
SIMD to accelerate baseline JPEG compression and decompression.
libjpeg is a library that
implements JPEG image encoding, decoding and transcoding.
This package is known to build and work properly using an LFS-7.5
platform.
Package Information
libjpeg-turbo Dependencies
Required
NASM-2.11 or
yasm-1.2.0
User Notes: http://wiki.linuxfromscratch.org/blfs/wiki/libjpeg-turbo
Installation of libjpeg-turbo
Install libjpeg-turbo by running
the following commands:
./configure --prefix=/usr \
--mandir=/usr/share/man \
--with-jpeg8 \
--disable-static &&
sed -i -e '/^docdir/ s/$/\/libjpeg-turbo-1.3.0/' \
-e '/^exampledir/ s/$/\/libjpeg-turbo-1.3.0/' Makefile &&
make
To test the results, issue: make
test.
Now, as the root user:
make install
Command Explanations
--with-jpeg8: This switch
enables compatibility with libjpeg
version 8.
sed -i -e ... This
command fixes Makefile to install documentation and examples in a
separate directory.
--disable-static: This
switch prevents installation of static versions of the libraries.
Contents
Installed Programs:
cjpeg, djpeg, jpegtran, rdjpgcom, tjbench
and wrjpgcom
Installed Libraries:
libjpeg.so and libturbojpeg.so
Installed Directories:
/usr/share/doc/libjpeg-turbo-1.3.0
Short Descriptions
|
cjpeg
|
compresses image files to produce a JPEG/JFIF file on the
standard output. Currently supported input file formats
are: PPM (PBMPLUS color format), PGM (PBMPLUS gray-scale
format), BMP, and Targa.
|
|
djpeg
|
decompresses image files from JPEG/JFIF format to either
PPM (PBMPLUS color format), PGM (PBMPLUS gray-scale
format), BMP, or Targa format.
|
|
jpegtran
|
is used for lossless transformation of JPEG files.
|
|
rdjpgcom
|
displays text comments from within a JPEG file.
|
|
wrjpgcom
|
inserts text comments into a JPEG file.
|
|
libjpeg.so
|
contains functions used for reading and writing JPEG
images.
|
Last updated on 2014-02-18 18:25:11 -0800