py-lz4 provides Python bindings for the LZ4 compression library by Yann
Collet.
At this time the project contains bindings for the LZ4 block format,
which are considered stable.
Support for the LZ4 frame format is a work-in-progress and available as a
technology preview. A future relase will implement support for the LZ4
stream format.
Temporarily remove the zstd buildlink as py-zstandard includes
its own version that it wants to use. Future versions will
support using a system supplied zstd but this one doesn't yet.
Also prevent setup.py from picking up cffi by accident so the
PLIST is stable.
New license : BSD + GPLv2
perf: substantially decreased memory usage in Multi-threading mode
perf: Multi-threading supports up to 256 threads. Cap at 256 when more are requested
cli : improved and fixed --list command
cli : command -vV lists supported formats
build : fixed binary variants
build : fix Visual compilation for non x86/x64 targets
API exp : breaking change : ZSTD_getframeHeader() provides more information
API exp : breaking change : pinned down values of error codes
doc : fixed huffman example
new : contrib/adaptive-compression, I/O driven compression strength
new : contrib/long_distance_matching
updated : contrib/linux-kernel
cli : fix : do not modify /dev/null permissions, reported by @Maokaman1
cli : added GNU separator -- specifying that all following arguments are files
cli : restored -BX command enabling block checksum
API : added LZ4_compress_HC_destSize(), by @remittor
API : added LZ4F_resetDecompressionContext()
API : lz4frame : negative compression levels trigger fast acceleration, request by @llchan
API : lz4frame : can control block checksum and dictionary ID
API : fix : expose obsolete decoding functions, reported by @cyfdecyf
API : experimental : lz4frame_static.h : new dictionary compression API
build : fix : static lib installation, by @ido
build : dragonFlyBSD, OpenBSD, NetBSD supported
build : LZ4_MEMORY_USAGE can be modified at compile time, through external define
doc : Updated LZ4 Frame format to v1.6.0, restoring Dictionary-ID field in header
doc : lz4's API manual in .html format, by @inikep
'--merge' is now able to fix files with thousands of scattered errors
per member by grouping the errors into clusters and then merging the
files as if each cluster were a single error.
The option '-a, --trailing-error' now works with '-l, --list' and
'-D, --range-decompress'.
The output of option '-l, --list' has been simplified to make it easier
to read.
In test mode, lziprecover now continues checking the rest of the files
if any input file is a terminal.
Trailing data are now shown both in hexadecimal and as a string of
printable ASCII characters.
The option '-l, --list' has been ported from lziprecover.
It is now an error to specify two or more different operations in the
command line (--decompress, --list or --test).
Compression time of option '-0' has been slightly reduced.
Decompression time has been reduced by 2%.
In test mode, lzip now continues checking the rest of the files if any
input file is a terminal.
Trailing data are now shown both in hexadecimal and as a string of
printable ASCII characters.
cli : new : `--list` command, by Paul Cruz
cli : changed : xz/lzma support enabled by default
cli : changed : `-t *` continue processing list after a decompression error
API : added : ZSTD_versionString()
API : promoted to stable status : ZSTD_getFrameContentSize(), by Sean Purcell
API exp : new advanced API : ZSTD_compress_generic(), ZSTD_CCtx_setParameter()
API exp : new : API for static or external allocation : ZSTD_initStatic?Ctx()
API exp : added : ZSTD_decompressBegin_usingDDict(), requested by Guy Riddle
API exp : clarified memory estimation / measurement functions.
API exp : changed : strongest strategy renamed ZSTD_btultra, fastest strategy ZSTD_fast set to 1
tools : decodecorpus can generate random dictionary-compressed samples, by Paul Cruz
new : contrib/seekable_format, demo and API, by Sean Purcell
changed : contrib/linux-kernel, updated version and license, by Nick Terrell
- Allocate Zlib data structures outside the OCaml heap for compatibility
with recent versions of Zlib
(Github issue #1, pull request #2, report and fix by Einar Lielmanis).
- Don't pass -L and -I options to the C compiler unless necessary.
- Compile and install the shared library zip.cmxs.
(Contributed by E. Millon.)
- ocamlfind: install under 'zip' and 'camlzip' package names.
