mirror of
https://git.tukaani.org/xz.git
synced 2024-04-04 12:36:23 +02:00
Update TODO.
This commit is contained in:
parent
6b5e3b9eff
commit
642f856bb8
1 changed files with 34 additions and 4 deletions
38
TODO
38
TODO
|
@ -36,6 +36,15 @@ Known bugs
|
|||
Missing features
|
||||
----------------
|
||||
|
||||
Add support for storing metadata in .xz files. A preliminary
|
||||
idea is to create a new Stream type for metadata. When both
|
||||
metadata and data are wanted in the same .xz file, two or more
|
||||
Streams would be concatenated.
|
||||
|
||||
The state stored in lzma_stream should be cloneable, which would
|
||||
be mostly useful when using a preset dictionary in LZMA2, but
|
||||
it may have other uses too. Compare to deflateCopy() in zlib.
|
||||
|
||||
Support LZMA_FINISH in raw decoder to indicate end of LZMA1 and
|
||||
other streams that don't have an end of payload marker.
|
||||
|
||||
|
@ -68,14 +77,35 @@ Missing features
|
|||
This is tricky, because the same error codes are used with
|
||||
slightly different meanings, and this cannot be fixed anymore.
|
||||
|
||||
Make it possible to adjust LZMA2 options in the middle of a Block
|
||||
so that the encoding speed vs. compression ratio can be optimized
|
||||
when the compressed data is streamed over network.
|
||||
|
||||
Improved BCJ filters. The current filters are small but they aren't
|
||||
so great when compressing binary packages that contain various file
|
||||
types. Specifically, they make things worse if there are static
|
||||
libraries or Linux kernel modules. The filtering could also be
|
||||
more effective (without getting overly complex), for example,
|
||||
streamable variant BCJ2 from 7-Zip could be implemented.
|
||||
|
||||
Filter that autodetects specific data types in the input stream
|
||||
and applies appropriate filters for the corrects parts of the input.
|
||||
Perhaps combine this with the BCJ filter improvement point above.
|
||||
|
||||
Long-range LZ77 method as a separate filter or as a new LZMA2
|
||||
match finder.
|
||||
|
||||
|
||||
Documentation
|
||||
-------------
|
||||
|
||||
Some tutorial is needed for liblzma. I have planned to write some
|
||||
extremely well commented example programs, which would work as
|
||||
a tutorial. I suppose the Doxygen tags are quite OK as a quick
|
||||
reference once one is familiar with the liblzma API.
|
||||
More tutorial programs are needed for liblzma.
|
||||
|
||||
Document the LZMA1 and LZMA2 algorithms.
|
||||
|
||||
|
||||
Miscellaneous
|
||||
------------
|
||||
|
||||
Try to get the media type for .xz registered at IANA.
|
||||
|
||||
|
|
Loading…
Reference in a new issue