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4.48 beta

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This commit is contained in:
Igor Pavlov
2007-06-26 00:00:00 +00:00
committed by Kornel Lesiński
parent 0b33f700a6
commit fd8b1d78b4
249 changed files with 3224 additions and 2157 deletions
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20
DOC/7zC.txt
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@@ -1,7 +1,7 @@
7z ANSI-C Decoder 4.43
7z ANSI-C Decoder 4.48
----------------------
7z ANSI-C Decoder 4.43 Copyright (C) 1999-2006 Igor Pavlov
7z ANSI-C Decoder 4.48 Copyright (C) 1999-2006 Igor Pavlov
7z ANSI-C provides 7z/LZMA decoding.
7z ANSI-C version is simplified version ported from C++ code.
@@ -40,12 +40,12 @@ You must download 7-Zip program from www.7-zip.org.
You can create .7z archive with 7z.exe or 7za.exe:
7za.exe a archive.7z *.htm -r -mx -m0fb=255 -mf=off
7za.exe a archive.7z *.htm -r -mx -m0fb=255
If you have big number of files in archive, and you need fast extracting,
you can use partly-solid archives:
7za.exe a archive.7z *.htm -ms=512K -r -mx -m0fb=255 -m0d=512K -mf=off
7za.exe a archive.7z *.htm -ms=512K -r -mx -m0fb=255 -m0d=512K
In that example 7-Zip will use 512KB solid blocks. So it needs to decompress only
512KB for extracting one file from such archive.
@@ -54,8 +54,8 @@ In that example 7-Zip will use 512KB solid blocks. So it needs to decompress onl
Limitations of current version of 7z ANSI-C Decoder
---------------------------------------------------
- It reads only "FileName", "Size", and "CRC" information for each file in archive.
- It supports only LZMA and Copy (no compression) methods.
- It reads only "FileName", "Size", "LastWriteTime" and "CRC" information for each file in archive.
- It supports only LZMA and Copy (no compression) methods with BCJ or BCJ2 filters.
- It converts original UTF-16 Unicode file names to UTF-8 Unicode file names.
These limitations will be fixed in future versions.
@@ -181,6 +181,7 @@ Memory usage for Archive opening:
Estimated size of one file structures in solid archive:
- Size (4 or 8 Bytes)
- CRC32 (4 bytes)
- LastWriteTime (8 bytes)
- Some file information (4 bytes)
- File Name (variable length) + pointer + allocation structures
@@ -190,6 +191,8 @@ Memory usage for archive Decompressing:
- Memory for LZMA decompressing structures
- Main pool:
- Memory for decompressed solid block
- Memory for temprorary buffers, if BCJ2 fileter is used. Usually these
temprorary buffers can be about 15% of solid block size.
If _LZMA_IN_CB is defined, 7z Decoder will not allocate memory for
@@ -220,12 +223,11 @@ LZMA Defines
_LZMA_IN_CB - Use special callback mode for input stream to reduce memory requirements
_SZ_FILE_SIZE_64 - define it if you need support for files larger than 4 GB
_SZ_NO_INT_64 - define it if your compiler doesn't support long long int
_SZ_FILE_SIZE_32 - define it if you need only support for files smaller than 4 GB
_SZ_NO_INT_64 - define it if your compiler doesn't support long long int or __int64.
_LZMA_PROB32 - it can increase LZMA decompressing speed on some 32-bit CPUs.
_SZ_ONE_DIRECTORY - define it if you want to locate all source files to one directory
_SZ_ALLOC_DEBUG - define it if you want to debug alloc/free operations to stderr.