Inikep Lizard Versions Save

Changes:

• LZ5 v2.0 was renamed to Lizard
• improved compression speed with many small files

Lizard v1.0 contains 4 compression methods:

• fastLZ4 : compression levels -10...-19 are designed to give better decompression speed than LZ4 i.e. over 2000 MB/s
• LIZv1 : compression levels -20...-29 are designed to give better ratio than LZ4 keeping 75% decompression speed
• fastLZ4 + Huffman : compression levels -30...-39 add Huffman coding to fastLZ4
• LIZv1 + Huffman : compression levels -40...-49 give the best ratio (comparable to zlib and low levels of zstd/brotli) at decompression speed of 1000 MB/s

LZ5 v2.0 contains completely new algorithms which are optimized for decompression speed (instead of ratio for previous versions).

Changes:

• introduced compatibility with Visual C++ 2010 and newer
• attached Visual Studio 2010 project
• thoroughly tested with 21 Travis CI and 7 AppVeyor CI tests
• fixed bug with reusing a context in lz5frame.c (LZ5F_compressBegin and LZ5_compress_HC_continue)
• fixed rare bug in match finder (concerns levels 4 - 15)

fixed bug with a backward match extension (only level 11 and 12)

Changes:

• improved: levels from 13 to 15 (maximum compression ratio)
• added a new parser: LZ5HC_optimal_price_bt
• updated documentation: lz5_Block_format.md and lz5_Frame_format.md
• changed lz5.exe: the "-B" option with block size [1-7] = 64KB, 256KB, 1MB, 4MB, 16MB, 64MB, 256MB (default : 4 = 4MB)

Changes:

• added: new levels from 11 to 18 (maximum compression ratio)
• added: a new parser: LZ5HC_optimal_price
• fixed: buffer-overflow during decompression (thanks to m^2)

• improved compression ratio
• added: new parsers: LZ5HC_fast, LZ5HC_price_fast, LZ5HC_lowest_price
• added: a special 1-byte codeword for the last occured offset
• added: support for 3-byte long matches (MINMATCH = 3)

• fixes a bug in decompression
• fullbench is working now