• Home
  • Line#
  • Scopes#
  • Navigate#
  • Raw
  • Download
1Package: {__PKGNAME}
2Version: @VERSION@-@BUILD@
3Section: misc
4Priority: optional
5Architecture: {__ARCH}
6Essential: no
7Maintainer: @PKGVENDOR@ <@PKGEMAIL@>
8Homepage: @PKGURL@
9Installed-Size: {__SIZE}
10Description: A SIMD-accelerated JPEG codec that provides both the libjpeg and TurboJPEG APIs
11 libjpeg-turbo is a JPEG image codec that uses SIMD instructions to accelerate
12 baseline JPEG compression and decompression on x86, x86-64, ARM, PowerPC, and
13 MIPS systems, as well as progressive JPEG compression on x86 and x86-64
14 systems.  On such systems, libjpeg-turbo is generally 2-6x as fast as libjpeg,
15 all else being equal.  On other types of systems, libjpeg-turbo can still
16 outperform libjpeg by a significant amount, by virtue of its highly-optimized
17 Huffman coding routines.  In many cases, the performance of libjpeg-turbo
18 rivals that of proprietary high-speed JPEG codecs.
19 .
20 libjpeg-turbo implements both the traditional libjpeg API as well as the less
21 powerful but more straightforward TurboJPEG API.  libjpeg-turbo also features
22 colorspace extensions that allow it to compress from/decompress to 32-bit and
23 big-endian pixel buffers (RGBX, XBGR, etc.), as well as a full-featured Java
24 interface.
25 .
26 libjpeg-turbo was originally based on libjpeg/SIMD, an MMX-accelerated
27 derivative of libjpeg v6b developed by Miyasaka Masaru.  The TigerVNC and
28 VirtualGL projects made numerous enhancements to the codec in 2009, and in
29 early 2010, libjpeg-turbo spun off into an independent project, with the goal
30 of making high-speed JPEG compression/decompression technology available to a
31 broader range of users and developers.
32