xz.git - XZ Utils

Age	Commit message (Collapse)	Author	Files	Lines
2022-11-28	liblzma: Use LZMA1EXT feature in lzma_microlzma_decoder().	Lasse Collin	1	-7/+8
	Here too this avoids the slightly ugly method to set the uncompressed size. Also moved the setting of dict_size to the struct initializer.
2022-11-27	liblzma: Pass the Filter ID to LZ encoder and decoder.	Lasse Collin	1	-0/+1
	This allows using two Filter IDs with the same initialization function and data structures.
2022-07-13	liblzma: Add optional autodetection of LZMA end marker.	Lasse Collin	1	-1/+1
	Turns out that this is needed for .lzma files as the spec in LZMA SDK says that end marker may be present even if the size is stored in the header. Such files are rare but exist in the real world. The code in liblzma is so old that the spec didn't exist in LZMA SDK back then and I had understood that such files weren't possible (the lzma tool in LZMA SDK didn't create such files). This modifies the internal API so that LZMA decoder can be told if EOPM is allowed even when the uncompressed size is known. It's allowed with .lzma and not with other uses. Thanks to Karl Beldan for reporting the problem.
2021-09-05	liblzma: Rename EROFS LZMA to MicroLZMA.	Lasse Collin	1	-16/+16
	It still exists primarily for EROFS but MicroLZMA is a more generic name (that hopefully doesn't clash with something that already exists).
2021-01-17	liblzma: In EROFS LZMA decoder, verify that comp_size matches at the end.	Lasse Collin	1	-1/+6
	When the uncompressed size is known to be exact, after decompressing the stream exactly comp_size bytes of input must have been consumed. This is a minor improvement to error detection.
2021-01-17	liblzma: Make EROFS LZMA decoder work when exact uncomp_size isn't known.	Lasse Collin	1	-7/+73
	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.
2021-01-14	liblzma: Add EROFS LZMA encoder and decoder.	Lasse Collin	1	-0/+148
	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.