Project Summary
libjpeg-turbo is a high-speed version of libjpeg for x86 and x86-64 processors which uses SIMD instructions (MMX, SSE2, etc.) to accelerate baseline JPEG compression and decompression. libjpeg-turbo is generally 2-4x as fast as the unmodified version of libjpeg, all else being equal.
libjpeg-turbo was originally based on libjpeg/SIMD by Miyasaka Masaru, but the TigerVNC and VirtualGL projects made numerous enhancements to the codec, including improved support for Mac OS X, 64-bit support, support for 32-bit and big endian pixel formats (RGBA, ABGR, etc.), accelerated Huffman encoding/decoding, and various bug fixes. The goal was to produce a fully open source codec that could replace the partially closed source TurboJPEG/IPP codec used by VirtualGL and TurboVNC.
In a Nutshell, libjpeg-turbo...
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has a well established, mature codebase
maintained by a small development team
with increasing Y-O-Y commits -
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took an estimated 35 years of effort (COCOMO model)
starting with its first commit in October, 1991
ending with its most recent commit 4 months ago
Quick Reference
Independent JPEG Group License
Permitted
Forbidden
Required
These details are provided for information only. No information here is legal advice and should not be used as such.
zlib License (aka zlib/libpng)
Permitted
Commercial Use
Commercial Use
Distribute
Distribute
Modify
Modify
Forbidden
Hold Liable
Hold Liable
Required
Include Copyright
Include Copyright
Rename
Rename
These details are provided for information only. No information here is legal advice and should not be used as such.
Project Security
Vulnerabilities per Version ( last 10 releases )
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