Compression
From Just Solve the File Format Problem
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* [[LZ77]] | * [[LZ77]] | ||
* [[LZ78]] | * [[LZ78]] | ||
| + | * [[LZMA]] | ||
| + | * [[LZMA2]] | ||
* [[LZSS]] (Lempel–Ziv–Storer–Szymanski) | * [[LZSS]] (Lempel–Ziv–Storer–Szymanski) | ||
* [[LZW]] | * [[LZW]] | ||
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* [[Inflate]] (.infl) - parody format that actually increases size | * [[Inflate]] (.infl) - parody format that actually increases size | ||
* [[JCalG1]] (.jc, Commodore Amiga) | * [[JCalG1]] (.jc, Commodore Amiga) | ||
| − | * [[ | + | * [[Lzip]] (.lz) |
| − | * [[LZMA]] (.lzma) | + | * [[LZMA Alone|LZMA_Alone]] (.lzma) |
* [[LZOP]] (.lzop) | * [[LZOP]] (.lzop) | ||
* [[LZX]] | * [[LZX]] | ||
Revision as of 23:34, 23 July 2013
Contents |
Stream compression formats
A stream format takes a stream of bytes, and outputs a different, hopefully smaller, stream of bytes. These compression formats are often used internally in other data structures to compress data, as well as in network protocols, such as http. Used stand-alone, a stream compression format does not offer archiving capability, however in the UNIX doctrine, an archiver like tar can be combined with an archive format to produce a proper compressed archive.
Compression in general
(including specific implementations used in multiple formats)
- Arithmetic coding
- DEFLATE
- Huffman coding
- Lempel-Ziv
- LZ4
- LZ77
- LZ78
- LZMA
- LZMA2
- LZSS (Lempel–Ziv–Storer–Szymanski)
- LZW
- Run-length encoding
- zlib
Specific file formats/programs
- 7z
- 9CDR (Amiga FileImploder Clone)
- BARF (.x, .x??)
- bzip (.bz)
- bzip2 (.bz2)
- compress (.Z)
- CrLZH (.?y?)
- CRN (.crn) - compressed text files used for PC-Write manual
- Crunch (.?z?)
- DiskDoubler
- DUPA (Amiga FileImploder Clone)
- Error Code Modeler (.ecm)
- File Imploder (Amiga) (.imp)
- Freeze/Melt (Unix) (.F)
- gzip (.gz)
- Inflate (.infl) - parody format that actually increases size
- JCalG1 (.jc, Commodore Amiga)
- Lzip (.lz)
- LZMA_Alone (.lzma)
- LZOP (.lzop)
- LZX
- MS-DOS installation compression (.??_)
- pack (.z)
- RK (WinRK)
- Softdisk Text Compressor (.ctx)
- Squash - single file compression on RISC OS
- Squeeze/SQ (.?q?)
- XZ (.xz)
See also
- Archiving (for formats that place multiple files together in one file, with or without compression)
- Graphics (for image-specific compression)
- Video (for video-specific compression)
- Audio and Music (for audio-specific compression)
