2dd76037be
zstd cli can increase level when input is too slow
2018-08-09 15:51:30 -07:00
01bb1c1016
Add CCtx Param Controlling Dict Attachment Behavior
2018-06-21 17:29:25 -04:00
b2632bcf6c
Merge pull request #1174 from duc0/document_default_level
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Expose ZSTD_CLEVEL_DEFAULT and update documentation
2018-06-12 12:09:01 -07:00
869e2718f6
Line break
2018-06-11 10:02:15 -07:00
e8ef725e13
Address comments
2018-06-11 10:01:35 -07:00
e34c000e44
Expose ZSTD_CLEVEL_DEFAULT and update documentation
2018-06-08 11:33:44 -07:00
c2c47e24e0
support targetlen==0 with strategy==ZSTD_fast
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to mean "normal compression",
targetlen >= 1 now means "disable huffman compression of literals"
2018-06-07 15:49:01 -07:00
a57b4df85f
removed literalCompression directive
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in this version, literal compression is always disabled for ZSTD_fast strategy.
Performance parity between ZSTD_compress_advanced() and ZSTD_compress_generic()
2018-06-07 15:24:12 -07:00
24319975b6
bumped version number to v1.3.5
2018-06-06 15:51:55 -07:00
9b979d0e33
minor : improved API code comment
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Extend guarantee that ZSTD_getFrameContentSize() will delivering the decompressed size
to any single-pass compression function.
Answer #1156
2018-05-31 11:12:18 -07:00
12f60b8c98
clarified documentation related to refPrefix()
2018-04-25 10:17:06 -07:00
ace856a835
updated documentation of streaming compression api
2018-04-24 14:44:27 -07:00
e8c9dc5cea
Fix documentation
2018-04-13 12:43:38 -07:00
9f76eebd17
Add ZSTD_CCtx_resetParameters() function
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* Fix docs for `ZSTD_CCtx_reset()`.
* Add `ZSTD_CCtx_resetParameters()`.
Fixes #1094 .
2018-04-12 16:54:07 -07:00
280a236e9e
Add ZSTD_CCtx(Param)?_getParameter() function
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Closes #1096 .
2018-04-12 11:50:12 -07:00
04212178b5
doc : clarified advanced API usage
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sticky parameters only work with `ZSTD_compress_generic()`
2018-04-10 11:40:36 -07:00
ad5ba6cdcf
updated comment on parameters that can be changed during compression
2018-04-09 17:39:07 -07:00
f35b8ba9da
updated ZSTD_p_chainLog description
2018-04-05 11:05:11 -07:00
8be984ec45
fixed comments as suggested by @terrelln
2018-03-30 20:09:27 -07:00
e6e848bfe9
added ZSTD_getFrameHeader_advanced()
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makes it possible to request frame header from a magicless frame
2018-03-29 17:51:08 -06:00
a6694838e1
added more code documentation for ZSTD_getFrameHeader()
2018-03-29 15:24:17 -06:00
153bc1c004
removed limit ZSTD_TARGETLENGTH_MAX
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this makes it possible to specify extremely large negative compression levels,
achieving the side effect as "no compression".
It will also be possible to define larger targetlength for ultra compression mode.
There is no adverse side effect due to removing this limit.
2018-03-21 15:50:05 -07:00
a99c4a3621
Merge branch 'dev' into advancedDecompress
2018-03-21 06:08:28 -07:00
87b0cf05bd
Merge pull request #1057 from facebook/lrmSettings
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LRM parameters
2018-03-21 05:59:39 -07:00
0dadb6b70d
implemented ZSTD_DCtx_refPrefix*()
2018-03-20 15:45:56 -07:00
569b8ba4d9
implemented ZSTD_DCtx_refDDict()
2018-03-20 15:43:49 -07:00
6873fec658
changed dictMore for dictContentType
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which seems clearer to describe what the variable/argument is about.
2018-03-20 15:13:14 -07:00
31b54b6eea
updated ZSTD_initStaticDDict() prototype
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can also specify dictContentType.
2018-03-20 14:52:02 -07:00
353117c5d7
implemented ZSTD_DCtx_loadDictionary*()
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this required updating ZSTD_createDDict_advanced()
to accept a dictContentType parameter (raw, full, auto).
2018-03-20 13:40:29 -07:00
c8b3d389fd
updated CCtxParams API
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to respect naming convention :
ZSTD_CCtxParams_*()
2018-03-19 15:07:26 -07:00
6f4d0778a5
make it possible to express compression parameters in any order
2018-03-19 14:41:23 -07:00
9618c0c804
make it possible to specify LDM parameters in any order
2018-03-19 11:07:04 -07:00
cbc71e40f6
moving LRM parameters out of experimental section
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into "normal" range,
start pinned at 160.
2018-03-15 17:22:40 -07:00
50f763ec44
fixed several comments are underlined by @terrelln
2018-03-13 14:23:14 -07:00
2291b85a1e
changed ZSTD_p_literalCompression into ZSTD_p_compressLiterals
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prefer verb+object construction
2018-03-12 11:44:10 -07:00
a57d43d4d4
updated documentation of targetLength
2018-03-12 11:35:01 -07:00
6a9b41b731
create command --fast[=#]
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access negative compression levels from command line
for both compression and benchmark modes.
also : ensure proper propagation of parameters
through ZSTD_compress_generic() interface.
added relevant cli tests.
2018-03-11 20:01:23 -07:00
a146ee04ae
added negative compression levels
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negative compression level trade compression ratio for more compression speed.
They turn off huffman compression of literals,
and use row 0 as baseline with a stepSize = -cLevel.
added associated test in fuzzer
also added : new advanced parameter ZSTD_p_literalCompression
2018-03-11 05:21:53 -07:00
6b88d592fd
Reduce ZSTD_CHAINLOG_MAX to 29 in 32-bit mode
2018-02-26 13:30:24 -08:00
90eca318a7
fileio: create dedicated function to generate zstd frames
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like other formats
2018-02-02 14:24:56 -08:00
209df52ba2
Changed nbThreads for nbWorkers
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This makes it easier to explain that nbWorkers=0 --> single-threaded mode,
while nbWorkers=1 --> asynchronous mode (one mode thread on top of the "main" caller thread).
No need for an additional asynchronous mode flag.
nbWorkers>=2 works the same as nbThreads>=2 previously.
2018-02-01 19:29:30 -08:00
4b6a94f0cc
clarified comments on LDM parameters
2018-02-01 17:07:27 -08:00
60fa90b6c0
zstdmt: added ability to change compression parameters during compression
2018-02-01 16:13:31 -08:00
823a28a1f4
Merge pull request #1000 from facebook/progressiveFlush
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Progressive flush
2018-01-30 22:49:47 -08:00
a2ba629971
fixed function declaration ZSTD_getBlockSize()
2018-01-30 15:03:39 -08:00
2cb0740b6b
zstdmt: changed naming convention
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to avoid confusion with blocks.
also:
- jobs are cut into chunks of 512KB now, to reduce nb of mutex calls.
- fix function declaration ZSTD_getBlockSizeMax()
- fix outdated comment
2018-01-30 14:43:36 -08:00
9f8ed23b5b
bumped version number to v1.3.4
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also added a paragraph on using compression level with training mode
as this is a recurrent question (see for example #1004 )
2018-01-27 22:23:26 -08:00
5f349b129c
zstdmt : correctly set end of frame
2018-01-23 15:52:40 -08:00
c1cc57f270
zstdmt : fix end condition (ZSTD_e_end)
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When ZSTD_e_end directive is provided,
the question is not only "are internal buffers completely flushed",
it is also "is current frame completed".
In some rare cases,
it was possible for internal buffers to be completely flushed,
triggering a @return == 0,
but frame was not completed as it needed a last null-size block to mark the end,
resulting in an unfinished frame.
2018-01-23 15:19:11 -08:00
d19dc1903c
Merge pull request #995 from facebook/progressiveMT
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Progressive mt
2018-01-18 17:59:49 -08:00
Yann Collet
W. Felix Handte
Yann Collet
Duc Ngo
Nick Terrell