Compression
From Just Solve the File Format Problem
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== Compression in general == | == Compression in general == | ||
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* [[Arithmetic coding]] | * [[Arithmetic coding]] | ||
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* [[Huffman coding]] | * [[Huffman coding]] | ||
* [[Lempel-Ziv]] | * [[Lempel-Ziv]] | ||
| + | * [[LZW]] | ||
* [[Run-length encoding]] | * [[Run-length encoding]] | ||
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* [[zlib]] | * [[zlib]] | ||
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* [[Archiving]] (for formats that place multiple files together in one file, with or without compression) | * [[Archiving]] (for formats that place multiple files together in one file, with or without compression) | ||
| + | * [[Graphics#Compression|Graphics]] (for image-specific compression) | ||
| + | * [[Video]] (for video-specific compression) | ||
| + | * [[Audio and Music]] (for audio-specific compression) | ||
Revision as of 01:47, 27 February 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)
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)
- JCalG1 (.jc, Commodore Amiga)
- LZIP (.lz)
- LZMA (.lzma)
- LZOP (.lzop)
- LZX
- 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)
