Saturday, October 29, 2011

Snappy and the compressed format


Google snappy: A fast compressor/decompressor

1. Optimized for:
64-bit platforms
x86 little-endian

2. Block compression
Snappy compressor works in 32KB blocks and does not do matching across blocks, it will never produce a bitstream with offsets larger than about 32768. However, the decompressor should not rely on this, as it may change in the future.

3. Snappy is a LZ77-type compressor with a fixed, byte-oriented encoding.
The format of snappy compressed data like the left figure.



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