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Diffstat (limited to 'doc/lzlib.info')
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1 files changed, 27 insertions, 20 deletions
diff --git a/doc/lzlib.info b/doc/lzlib.info index 511fda5..84e0501 100644 --- a/doc/lzlib.info +++ b/doc/lzlib.info @@ -12,7 +12,7 @@ File: lzlib.info, Node: Top, Next: Introduction, Up: (dir) Lzlib Manual ************ -This manual is for Lzlib (version 1.4-rc2, 7 February 2013). +This manual is for Lzlib (version 1.4, 28 May 2013). * Menu: @@ -530,15 +530,21 @@ with no additional information before, between, or after them. now. `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. `Lzma stream' The lzma stream, finished by an end of stream marker. Uses default - values for encoder properties. + values for encoder properties. See the lzip manual for a full + description. `CRC32 (4 bytes)' CRC of the uncompressed original data. @@ -548,8 +554,9 @@ with no additional information before, between, or after them. `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. + acts as a distributed index, allows the verification of stream + integrity, and facilitates safe recovery of undamaged members from + multi-member files. @@ -715,18 +722,18 @@ Concept Index Tag Table: Node: Top219 -Node: Introduction1327 -Node: Library Version3173 -Node: Buffering3818 -Node: Parameter Limits4937 -Node: Compression Functions5894 -Node: Decompression Functions12104 -Node: Error Codes18265 -Node: Error Messages20204 -Node: Data Format20783 -Node: Examples22864 -Node: Problems26947 -Node: Concept Index27519 +Node: Introduction1319 +Node: Library Version3165 +Node: Buffering3810 +Node: Parameter Limits4929 +Node: Compression Functions5886 +Node: Decompression Functions12096 +Node: Error Codes18257 +Node: Error Messages20196 +Node: Data Format20775 +Node: Examples23268 +Node: Problems27351 +Node: Concept Index27923 End Tag Table |