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2022-11-09liblzma: Add .lz support to lzma_auto_decoder().Lasse Collin1-4/+6
Thanks to Michał Górny for the original patch.
2022-11-09liblzma: Add .lz (lzip) decompression support (format versions 0 and 1).Lasse Collin1-2/+60
Support for format version 0 was removed from lzip 1.18 for some reason. .lz format version 0 files are rare (and old) but some source packages were released in this format, and some people might have personal files in this format too. It's very little extra code to support it along side format version 1 so this commits adds support for both. The Sync Flush marker extentension to the original .lz format version 1 isn't supported. It would require changes to the LZMA decoder itself. Such files are very rare anyway. See the API doc for lzma_lzip_decoder() for more details about the .lz format support. Thanks to Michał Górny for the original patch.
2022-11-08liblzma: Update API docs about decoder flags.Lasse Collin1-4/+17
2022-08-18liblzma: Threaded decoder: Improve LZMA_FAIL_FAST when LZMA_FINISH is used.Lasse Collin1-0/+6
It will now return LZMA_DATA_ERROR (not LZMA_OK or LZMA_BUF_ERROR) if LZMA_FINISH is used and there isn't enough input to finish decoding the Block Header or the Block. The use of LZMA_DATA_ERROR is simpler and the less risky than LZMA_BUF_ERROR but this might be changed before 5.4.0.
2022-04-06liblzma: Add a new flag LZMA_FAIL_FAST for threaded decoder.Lasse Collin1-1/+24
In most cases if the input file is corrupt the application won't care about the uncompressed content at all. With this new flag the threaded decoder will return an error as soon as any thread has detected an error; it won't wait to copy out the data before the location of the error. I don't plan to use this in xz to keep the behavior consistent between single-threaded and multi-threaded modes.
2022-03-07liblzma: Add threaded .xz decompressor.Lasse Collin1-7/+83
I realize that this is about a decade late. Big thanks to Sebastian Andrzej Siewior for the original patch. I made a bunch of smaller changes but after a while quite a few things got rewritten. So any bugs in the commit were created by me.
2021-09-05liblzma: Rename EROFS LZMA to MicroLZMA.Lasse Collin1-14/+19
It still exists primarily for EROFS but MicroLZMA is a more generic name (that hopefully doesn't clash with something that already exists).
2021-01-17liblzma: Make EROFS LZMA decoder work when exact uncomp_size isn't known.Lasse Collin1-5/+18
The caller must still not specify an uncompressed size bigger than the actual uncompressed size. As a downside, this now needs the exact compressed size.
2021-01-14liblzma: Add EROFS LZMA encoder and decoder.Lasse Collin1-0/+76
Right now this is just a planned extra-compact format for use in the EROFS file system in Linux. At this point it's possible that the format will either change or be abandoned and removed completely. The special thing about the encoder is that it uses the output-size-limited encoding added in the previous commit. EROFS uses fixed-sized blocks (e.g. 4 KiB) to hold compressed data so the compressors must be able to create valid streams that fill the given block size.
2017-03-30liblzma: Similar memlimit fix for stream_, alone_, and auto_decoder.Lasse Collin1-4/+17
2014-12-02liblzma: Document how lzma_mt.block_size affects memory usage.Lasse Collin1-0/+4
2014-11-26Remove LZMA_UNSTABLE macro.Lasse Collin1-4/+0
2014-11-26liblzma: Update lzma_stream_encoder_mt() API docs.Lasse Collin1-2/+3
2014-08-05liblzma: Add support for LZMA_IGNORE_CHECK.Lasse Collin1-0/+24
2012-07-17liblzma: Make the use of lzma_allocator const-correct.Lasse Collin1-3/+6
There is a tiny risk of causing breakage: If an application assigns lzma_stream.allocator to a non-const pointer, such code won't compile anymore. I don't know why anyone would do such a thing though, so in practice this shouldn't cause trouble. Thanks to Jan Kratochvil for the patch.
2011-04-12Put the unstable APIs behind #ifdef LZMA_UNSTABLE.Lasse Collin1-0/+4
This way people hopefully won't complain if these APIs change and break code that used an older API.
2011-04-11liblzma: Add lzma_stream_encoder_mt() for threaded compression.Lasse Collin1-0/+163
This is the simplest method to do threading, which splits the uncompressed data into blocks and compresses them independently from each other. There's room for improvement especially to reduce the memory usage, but nevertheless, this is a good start.
2011-04-11liblzma: Document lzma_easy_(enc|dec)oder_memusage() better too.Lasse Collin1-0/+9
2011-04-11liblzma: Fix API docs to mention LZMA_UNSUPPORTED_CHECK.Lasse Collin1-0/+3
This return value was missing from the API comments of four functions.
2010-10-21liblzma: Update the comments in the API headers.Lasse Collin1-9/+17
Adding support for LZMA_FINISH for Index encoding and decoding needed tiny additions to the relevant .c files too.
2009-08-27Updates to liblzma API headers.Lasse Collin1-16/+20
Added lzma_nothrow for every function. It adds throw() when the header is used in C++ code. Some lzma_attrs were added or removed. Lots of comments were improved.
2009-04-13Put the interesting parts of XZ Utils into the public domain.Lasse Collin1-11/+7
Some minor documentation cleanups were made at the same time.
2009-02-18Added files missing from the previous commit.Lasse Collin1-0/+33
2009-02-02Modify LZMA_API macro so that it works on Windows withLasse Collin1-11/+11
other compilers than MinGW. This may hurt readability of the API headers slightly, but I don't know any better way to do this.
2009-01-31Add LZMA_API to liblzma API headers. It's useful at leastLasse Collin1-11/+12
on Windows. sysdefs.h no longer #includes lzma.h, so lzma.h has to be #included separately where needed.
2009-01-23Added lzma_stream_buffer_decode() and made minor cleanups.Lasse Collin1-1/+50
2009-01-20Add some single-call buffer-to-buffer coding functions.Lasse Collin1-0/+56
2008-12-31Cleaned up some comments in the API headers.Lasse Collin1-1/+1
2008-12-27Bunch of liblzma tweaks, including some API changes.Lasse Collin1-38/+38
The API and ABI should now be very close to stable, although the code behind it isn't yet.
2008-12-15Bunch of liblzma API cleanups and fixes.Lasse Collin1-78/+77
2008-10-07Made the preset numbering more logical in liblzma API.Lasse Collin1-10/+10
2008-09-13Renamed constants:Lasse Collin1-6/+6
- LZMA_VLI_VALUE_MAX -> LZMA_VLI_MAX - LZMA_VLI_VALUE_UNKNOWN -> LZMA_VLI_UNKNOWN - LZMA_HEADER_ERRRO -> LZMA_OPTIONS_ERROR
2008-09-06CommentsLasse Collin1-2/+4
2008-09-06Some API cleanupsLasse Collin1-14/+26
2008-08-28Sort of garbage collection commit. :-| Many things are stillLasse Collin1-0/+252
broken. API has changed a lot and it will still change a little more here and there. The command line tool doesn't have all the required changes to reflect the API changes, so it's easy to get "internal error" or trigger assertions.
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