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https://github.com/dearblue/mruby-lzma
mruby bindings for lzma (xz)
https://github.com/dearblue/mruby-lzma
compressions lzma mruby xz
Last synced: 15 days ago
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mruby bindings for lzma (xz)
- Host: GitHub
- URL: https://github.com/dearblue/mruby-lzma
- Owner: dearblue
- License: bsd-2-clause
- Created: 2017-07-11T13:14:01.000Z (over 7 years ago)
- Default Branch: wip
- Last Pushed: 2021-02-03T13:34:14.000Z (almost 4 years ago)
- Last Synced: 2024-10-31T22:13:46.946Z (2 months ago)
- Topics: compressions, lzma, mruby, xz
- Language: C
- Size: 30.3 KB
- Stars: 0
- Watchers: 4
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- License: LICENSE
Awesome Lists containing this project
README
# mruby-lzma : mruby bindings for lzma (xz) the compression library (unofficial)
mruby へ LZMA/XZ 圧縮ライブラリの機能を提供します。
## HOW TO USAGE
### 圧縮
```ruby:ruby
src = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
dest = LZMA.encode(src)
# dest は xz ユーティリティプログラムで伸長可能な string オブジェクトです
```
### 伸長
```ruby:ruby
src = ... # LZMA.encode か xz ユーティリティプログラムで圧縮したデータ
dest = LZMA.decode(src)
# dest は伸長した string オブジェクト
```
### 圧縮 (簡易オプションの指定)
```ruby:ruby
src = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
preset_level = 9
check_method = :sha256 # OR :none, :crc32, :crc64, nil (crc64)
dest = LZMA.encode(src, preset: preset_level, check: check_method)
```
### 圧縮 (フィルタの指定)
```ruby:ruby
src = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
striping = 4 # for 4 bytes striping (e.g. 16bits-2ch audio, or RGBA32 pixel image
filter1 = LZMA.delta(striping)
preset_level = 9
filter2 = LZMA.lzma2(preset_level)
check_method = :sha256 # OR :none, :crc32, :crc64, nil (crc64)
dest = LZMA.encode(src, filter1, filter2, check: check_method)
```
## Specification
- Product name: [mruby-lzma](https://github.com/dearblue/mruby-lzma)
- Version: 0.3.2
- Product quality: PROTOTYPE
- Author: [dearblue](https://github.com/dearblue)
- Report issue to:
- Licensing: [2 clause BSD License](LICENSE)
- Dependency external mrbgems:
- [mruby-aux](https://github.com/dearblue/mruby-aux)
under [Creative Commons Zero License \(CC0\)](https://github.com/dearblue/mruby-aux/blob/master/LICENSE)
by [dearblue](https://github.com/dearblue)
- Dependency C libraries:
- liblzma in [XZ Utils](https://tukaani.org/xz/)
under [Public Domain](https://git.tukaani.org/?p=xz.git;a=blob;f=COPYING)
by Lasse Collin