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annotate jpeg-turbo/description.txt @ rev 25017
updated openjpeg, openjpeg-dev and openjpeg-tools (1.5.0 -> 1.5.2)
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Hans-G?nter Theisgen |
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Wed May 18 06:55:41 2022 +0100 (2022-05-18) |
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1 Libjpeg-turbo is a JPEG image codec that uses SIMD instructions
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2 (MMX, SSE2, AVX2, Neon, AltiVec) to accelerate baseline JPEG
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3 compression and decompression on x86, x86-64, Arm, and PowerPC
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4 systems, as well as progressive JPEG compression on x86 and
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5 x86-64 systems.
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6 On such systems, libjpeg-turbo is generally 2-6x as fast as
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7 libjpeg, all else being equal.
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8 On other types of systems, libjpeg-turbo can still outperform
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9 libjpeg by a significant amount, by virtue of its highly-optimized
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10 Huffman coding routines. In many cases, the performance of
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11 libjpeg-turbo rivals that of proprietary high-speed JPEG codecs.
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