wok-current diff jpeg-turbo/description.txt @ rev 24942
BootProg: clear cmdline
author | Pascal Bellard <pascal.bellard@slitaz.org> |
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date | Wed Apr 20 15:10:50 2022 +0000 (2022-04-20) |
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1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000 1.2 +++ b/jpeg-turbo/description.txt Wed Apr 20 15:10:50 2022 +0000 1.3 @@ -0,0 +1,11 @@ 1.4 +Libjpeg-turbo is a JPEG image codec that uses SIMD instructions 1.5 +(MMX, SSE2, AVX2, Neon, AltiVec) to accelerate baseline JPEG 1.6 +compression and decompression on x86, x86-64, Arm, and PowerPC 1.7 +systems, as well as progressive JPEG compression on x86 and 1.8 +x86-64 systems. 1.9 +On such systems, libjpeg-turbo is generally 2-6x as fast as 1.10 +libjpeg, all else being equal. 1.11 +On other types of systems, libjpeg-turbo can still outperform 1.12 +libjpeg by a significant amount, by virtue of its highly-optimized 1.13 +Huffman coding routines. In many cases, the performance of 1.14 +libjpeg-turbo rivals that of proprietary high-speed JPEG codecs.