diff options
Diffstat (limited to 'lib_generic/lzma/lzma.txt')
| -rw-r--r-- | lib_generic/lzma/lzma.txt | 128 |
1 files changed, 64 insertions, 64 deletions
diff --git a/lib_generic/lzma/lzma.txt b/lib_generic/lzma/lzma.txt index c40d133..5f1a0c9 100644 --- a/lib_generic/lzma/lzma.txt +++ b/lib_generic/lzma/lzma.txt @@ -117,10 +117,10 @@ LIB = -lm -static Files --------------------- -C - C source code -CPP - CPP source code -CS - C# source code -Java - Java source code +C - C source code +CPP - CPP source code +CS - C# source code +Java - Java source code lzma.txt - LZMA SDK description (this file) 7zFormat.txt - 7z Format description 7zC.txt - 7z ANSI-C Decoder description (this file) @@ -139,16 +139,16 @@ C - C files Lz - files related to LZ (Lempel-Ziv) compression algorithm Lzma - ANSI-C compatible LZMA decompressor - LzmaDecode.h - interface for LZMA decoding on ANSI-C - LzmaDecode.c - LZMA decoding on ANSI-C (new fastest version) - LzmaDecodeSize.c - LZMA decoding on ANSI-C (old size-optimized version) - LzmaTest.c - test application that decodes LZMA encoded file - LzmaTypes.h - basic types for LZMA Decoder - LzmaStateDecode.h - interface for LZMA decoding (State version) - LzmaStateDecode.c - LZMA decoding on ANSI-C (State version) - LzmaStateTest.c - test application (State version) + LzmaDecode.h - interface for LZMA decoding on ANSI-C + LzmaDecode.c - LZMA decoding on ANSI-C (new fastest version) + LzmaDecodeSize.c - LZMA decoding on ANSI-C (old size-optimized version) + LzmaTest.c - test application that decodes LZMA encoded file + LzmaTypes.h - basic types for LZMA Decoder + LzmaStateDecode.h - interface for LZMA decoding (State version) + LzmaStateDecode.c - LZMA decoding on ANSI-C (State version) + LzmaStateTest.c - test application (State version) - Branch - Filters for x86, IA-64, ARM, ARM-Thumb, PowerPC and SPARC code + Branch - Filters for x86, IA-64, ARM, ARM-Thumb, PowerPC and SPARC code Archive - files related to archiving 7z_C - 7z ANSI-C Decoder @@ -158,7 +158,7 @@ CPP -- CPP files Common - common files for C++ projects Windows - common files for Windows related code - 7zip - files related to 7-Zip Project + 7zip - files related to 7-Zip Project Common - common files for 7-Zip @@ -166,12 +166,12 @@ CPP -- CPP files LZ - files related to LZ (Lempel-Ziv) compression algorithm - Copy - Copy coder + Copy - Copy coder RangeCoder - Range Coder (special code of compression/decompression) - LZMA - LZMA compression/decompression on C++ + LZMA - LZMA compression/decompression on C++ LZMA_Alone - file->file LZMA compression/decompression - Branch - Filters for x86, IA-64, ARM, ARM-Thumb, PowerPC and SPARC code + Branch - Filters for x86, IA-64, ARM, ARM-Thumb, PowerPC and SPARC code Archive - files related to archiving @@ -180,13 +180,13 @@ CPP -- CPP files Bundles - Modules that are bundles of other modules - Alone7z - 7zr.exe: Standalone version of 7z.exe that supports only 7z/LZMA/BCJ/BCJ2 - Format7zR - 7zr.dll: Reduced version of 7za.dll: extracting/compressing to 7z/LZMA/BCJ/BCJ2 - Format7zExtractR - 7zxr.dll: Reduced version of 7zxa.dll: extracting from 7z/LZMA/BCJ/BCJ2. + Alone7z - 7zr.exe: Standalone version of 7z.exe that supports only 7z/LZMA/BCJ/BCJ2 + Format7zR - 7zr.dll: Reduced version of 7za.dll: extracting/compressing to 7z/LZMA/BCJ/BCJ2 + Format7zExtractR - 7zxr.dll: Reduced version of 7zxa.dll: extracting from 7z/LZMA/BCJ/BCJ2. - UI - User Interface files + UI - User Interface files - Client7z - Test application for 7za.dll, 7zr.dll, 7zxr.dll + Client7z - Test application for 7za.dll, 7zr.dll, 7zxr.dll Common - Common UI files Console - Code for console archiver @@ -197,15 +197,15 @@ CS - C# files Common - some common files for 7-Zip Compress - files related to compression/decompression LZ - files related to LZ (Lempel-Ziv) compression algorithm - LZMA - LZMA compression/decompression + LZMA - LZMA compression/decompression LzmaAlone - file->file LZMA compression/decompression RangeCoder - Range Coder (special code of compression/decompression) Java - Java files SevenZip Compression - files related to compression/decompression - LZ - files related to LZ (Lempel-Ziv) compression algorithm - LZMA - LZMA compression/decompression + LZ - files related to LZ (Lempel-Ziv) compression algorithm + LZMA - LZMA compression/decompression RangeCoder - Range Coder (special code of compression/decompression) C/C++ source code of LZMA SDK is part of 7-Zip project. @@ -251,7 +251,7 @@ How To Use Using LZMA encoder/decoder executable -------------------------------------- -Usage: LZMA <e|d> inputFile outputFile [<switches>...] +Usage: LZMA <e|d> inputFile outputFile [<switches>...] e: encode file @@ -272,52 +272,52 @@ Usage: LZMA <e|d> inputFile outputFile [<switches>...] -a{N}: set compression mode 0 = fast, 1 = normal - default: 1 (normal) + default: 1 (normal) d{N}: Sets Dictionary size - [0, 30], default: 23 (8MB) - The maximum value for dictionary size is 1 GB = 2^30 bytes. - Dictionary size is calculated as DictionarySize = 2^N bytes. - For decompressing file compressed by LZMA method with dictionary - size D = 2^N you need about D bytes of memory (RAM). + The maximum value for dictionary size is 1 GB = 2^30 bytes. + Dictionary size is calculated as DictionarySize = 2^N bytes. + For decompressing file compressed by LZMA method with dictionary + size D = 2^N you need about D bytes of memory (RAM). -fb{N}: set number of fast bytes - [5, 273], default: 128 - Usually big number gives a little bit better compression ratio - and slower compression process. + Usually big number gives a little bit better compression ratio + and slower compression process. -lc{N}: set number of literal context bits - [0, 8], default: 3 - Sometimes lc=4 gives gain for big files. + Sometimes lc=4 gives gain for big files. -lp{N}: set number of literal pos bits - [0, 4], default: 0 - lp switch is intended for periodical data when period is - equal 2^N. For example, for 32-bit (4 bytes) - periodical data you can use lp=2. Often it's better to set lc0, - if you change lp switch. + lp switch is intended for periodical data when period is + equal 2^N. For example, for 32-bit (4 bytes) + periodical data you can use lp=2. Often it's better to set lc0, + if you change lp switch. -pb{N}: set number of pos bits - [0, 4], default: 2 - pb switch is intended for periodical data - when period is equal 2^N. + pb switch is intended for periodical data + when period is equal 2^N. -mf{MF_ID}: set Match Finder. Default: bt4. - Algorithms from hc* group doesn't provide good compression - ratio, but they often works pretty fast in combination with - fast mode (-a0). + Algorithms from hc* group doesn't provide good compression + ratio, but they often works pretty fast in combination with + fast mode (-a0). - Memory requirements depend from dictionary size - (parameter "d" in table below). + Memory requirements depend from dictionary size + (parameter "d" in table below). - MF_ID Memory Description + MF_ID Memory Description - bt2 d * 9.5 + 4MB Binary Tree with 2 bytes hashing. - bt3 d * 11.5 + 4MB Binary Tree with 3 bytes hashing. - bt4 d * 11.5 + 4MB Binary Tree with 4 bytes hashing. - hc4 d * 7.5 + 4MB Hash Chain with 4 bytes hashing. + bt2 d * 9.5 + 4MB Binary Tree with 2 bytes hashing. + bt3 d * 11.5 + 4MB Binary Tree with 3 bytes hashing. + bt4 d * 11.5 + 4MB Binary Tree with 4 bytes hashing. + hc4 d * 7.5 + 4MB Hash Chain with 4 bytes hashing. -eos: write End Of Stream marker. By default LZMA doesn't write - eos marker, since LZMA decoder knows uncompressed size - stored in .lzma file header. + eos marker, since LZMA decoder knows uncompressed size + stored in .lzma file header. - -si: Read data from stdin (it will write End Of Stream marker). - -so: Write data to stdout + -si: Read data from stdin (it will write End Of Stream marker). + -so: Write data to stdout Examples: @@ -392,10 +392,10 @@ For some ISAs (for example, for MIPS) it's impossible to get gain from such filt LZMA compressed file format --------------------------- Offset Size Description - 0 1 Special LZMA properties for compressed data - 1 4 Dictionary size (little endian) - 5 8 Uncompressed size (little endian). -1 means unknown size - 13 Compressed data + 0 1 Special LZMA properties for compressed data + 1 4 Dictionary size (little endian) + 5 8 Uncompressed size (little endian). -1 means unknown size + 13 Compressed data ANSI-C LZMA Decoder @@ -629,18 +629,18 @@ _LZMA_IN_CB - Use callback for input data _LZMA_OUT_READ - Use read function for output data _LZMA_LOC_OPT - Enable local speed optimizations inside code. - _LZMA_LOC_OPT is only for LzmaDecodeSize.c (size-optimized version). - _LZMA_LOC_OPT doesn't affect LzmaDecode.c (speed-optimized version) - and LzmaStateDecode.c + _LZMA_LOC_OPT is only for LzmaDecodeSize.c (size-optimized version). + _LZMA_LOC_OPT doesn't affect LzmaDecode.c (speed-optimized version) + and LzmaStateDecode.c _LZMA_PROB32 - It can increase speed on some 32-bit CPUs, - but memory usage will be doubled in that case + but memory usage will be doubled in that case _LZMA_UINT32_IS_ULONG - Define it if int is 16-bit on your compiler - and long is 32-bit. + and long is 32-bit. _LZMA_SYSTEM_SIZE_T - Define it if you want to use system's size_t. - You can use it to enable 64-bit sizes supporting + You can use it to enable 64-bit sizes supporting |