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Libjpeg-turbo
Jul 20, 2023
SIMD-accelerated JPEG codec library, provides libTurboJPEG
This is the libjpeg-turbo library.
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. libjpeg-turbo generally achieves 80-120 of the performance of TurboJPEG/IPP. It is faster in some areas but slower in others.
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