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1 libjpeg-turbo is a JPEG image codec that uses SIMD instructions (MMX, SSE2,
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2 NEON, AltiVec) to accelerate baseline JPEG compression and decompression on
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3 x86, x86-64, ARM, and PowerPC systems. On such systems, libjpeg-turbo is
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4 generally 2-6x as fast as libjpeg, all else being equal. On other types of
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5 systems, libjpeg-turbo can still outperform libjpeg by a significant amount,
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6 by virtue of its highly-optimized Huffman coding routines. In many cases, the
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7 performance of libjpeg-turbo rivals that of proprietary high-speed JPEG codecs.
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8
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9 libjpeg-turbo implements both the traditional libjpeg API as well as the less
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10 powerful but more straightforward TurboJPEG API. libjpeg-turbo also features
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11 colorspace extensions that allow it to compress from/decompress to 32-bit and
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12 big-endian pixel buffers (RGBX, XBGR, etc.), as well as a full-featured Java
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13 interface.
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14
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15 Features
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16
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17 * 2-6x as fast as libjpeg on x86, x86-64, and ARM platforms
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18 * 32-bit and 64-bit binaries provided for popular Linux distributions,
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19 Windows, OS X, and iOS
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20 * Can be used in GPL and proprietary applications
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21 * Provides the industry-standard libjpeg API/ABI (can emulate libjpeg v6b,
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22 v7, or v8, although libjpeg-turbo does not support the non-standard
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23 SmartScale format introduced in libjpeg v8)
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24 * Provides the TurboJPEG API used by VirtualGL and TurboVNC
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25 * Similar performance to commercial/closed source accelerated JPEG codecs
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26 * Full-featured Java wrapper
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