lzip/lzlib
1
0
Fork 0
Code Issues Activity

Merging upstream version 1.4.

Browse source 
Signed-off-by: Daniel Baumann <daniel@debian.org>
This commit is contained in:
Daniel Baumann 2025-02-20 20:13:56 +01:00
parent 8563d072ca
commit 270d4df10d
Signed by: daniel
GPG key ID: FBB4F0E80A80222F
18 changed files with 224 additions and 197 deletions
Download patch file Download diff file Expand all files Collapse all files

22
doc/lzlib.texinfo
View file

@ -6,8 +6,8 @@
@finalout
@c %**end of header
@set UPDATED 7 February 2013
@set VERSION 1.4-rc2
@set UPDATED 28 May 2013
@set VERSION 1.4
@dircategory Data Compression
@direntry
@ -600,15 +600,19 @@ A four byte string, identifying the lzip format, with the value "LZIP".
Just in case something needs to be modified in the future. 1 for now.
@item DS (coded dictionary size, 1 byte)
Bits 4-0 contain the base 2 logarithm of the base dictionary size.@*
Bits 7-5 contain the number of "wedges" to substract from the base
dictionary size to obtain the dictionary size. The size of a wedge is
(base dictionary size / 16).@*
Lzip divides the distance between any two powers of 2 into 8 equally
spaced intervals, named "wedges". The dictionary size is calculated by
taking a power of 2 (the base size) and substracting from it a number of
wedges between 0 and 7. The size of a wedge is (base_size / 16).@*
Bits 4-0 contain the base 2 logarithm of the base size (12 to 29).@*
Bits 7-5 contain the number of wedges (0 to 7) to substract from the
base size to obtain the dictionary size.@*
Example: 0xD3 = (2^19 - 6 * 2^15) = (512KiB - 6 * 32KiB) = 320KiB@*
Valid values for dictionary size range from 4KiB to 512MiB.
@item Lzma stream
The lzma stream, finished by an end of stream marker. Uses default values
for encoder properties.
for encoder properties. See the lzip manual for a full description.
@item CRC32 (4 bytes)
CRC of the uncompressed original data.
@ -618,8 +622,8 @@ Size of the uncompressed original data.
@item Member size (8 bytes)
Total size of the member, including header and trailer. This field acts
as a distributed index, and facilitates safe recovery of undamaged
members from multi-member files.
as a distributed index, allows the verification of stream integrity, and
facilitates safe recovery of undamaged members from multi-member files.
@end table