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2008-01-22Added lzma_easy_* functions. These should make usingLasse Collin7-2/+254
liblzma as easy as using zlib, because the easy API don't require developers to know any fancy LZMA options. Note that Multi-Block Stream encoding is currently broken. The easy API should be OK, the bug(s) are elsewhere.
2008-01-22Fix Multi-Block Stream encoder's EOPM usage.Lasse Collin1-1/+1
2008-01-22Made lzma_extra pointers const in lzma_options_stream.Lasse Collin1-2/+6
2008-01-19Revised the Delta filter implementation. The initializationLasse Collin10-200/+363
function is still shared between encoder and decoder, but the actual coding is in separate files for encoder and decoder. There are now separate functions for the actual delta calculation depending on if Delta is the last filter in the chain or not. If it is the last, the new code copies the data from input to output buffer and does the delta calculation at the same time. The old code first copied the data, then did the delta in the target buffer, which required reading through the data twice. Support for LZMA_SYNC_FLUSH was added to the Delta encoder. This doesn't change anything in the file format.
2008-01-16Plugged a memory leak in stream_decoder.c.Lasse Collin1-0/+20
2008-01-16Added lzma_memlimit_count().Lasse Collin1-0/+19
2008-01-16Make Uncompresed Size validation more strictLasse Collin1-1/+2
in alone_decoder.c.
2008-01-15Use fastpos.h when encoding LZMA dictionary size inLasse Collin1-21/+19
Filter Flags encoder.
2008-01-15Revised the fastpos code. It now uses the slightly fasterLasse Collin1-3/+0
table-based version from LZMA SDK 4.57. This should be fast on most systems. A simpler and smaller alternative version is also provided. On some CPUs this can be even a little faster than the default table-based version (see comments in fastpos.h), but on most systems the table-based code is faster.
2008-01-15Added bsr.h.Lasse Collin2-0/+62
2008-01-15Fix CRC code in case --enable-small is used.Lasse Collin2-4/+0
2008-01-15Added precomputed range coder probability price table.Lasse Collin1-2/+3
2008-01-14Small LZMA_SYNC_FLUSH fixes to Block and Single-Stream encoders.Lasse Collin2-2/+3
2008-01-08Take advantage of return_if_error() in block_decoder.c.Lasse Collin1-16/+7
2008-01-08Fix decoding of Blocks that have only Block Header.Lasse Collin1-23/+14
2008-01-08Fixed encoding of empty files. Arguments to is_size_valid()Lasse Collin1-1/+1
were in wrong order in block_encoder.c.
2007-12-11Removed uncompressed size tracking from Delta encoder too.Lasse Collin1-18/+3
2007-12-11Remove uncompressed size tracking from the filter encoders.Lasse Collin1-23/+2
It's not strictly needed there, and just complicates the code. LZ encoder never even had this feature. The primary reason to have uncompressed size tracking in filter encoders was validating that the application doesn't give different amount of input that it had promised. A side effect was to validate internal workings of liblzma. Uncompressed size tracking is still present in the Block encoder. Maybe it should be added to LZMA_Alone and raw encoders too. It's simpler to have one coder just to validate the uncompressed size instead of having it in every filter.
2007-12-09Added LZMA_SYNC_FLUSH support to the Copy filter.Lasse Collin1-35/+57
2007-12-09Take advantage of return_if_error() macro in more places.Lasse Collin5-84/+39
Cleaned Subblock filter's initialization code too.
2007-12-09Imported to git.Lasse Collin56-0/+8851