https://github.com/jeroen/brotli

https://github.com/jeroen/brotli

Last synced: 9 days ago
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• Host: GitHub
• URL: https://github.com/jeroen/brotli
• Owner: jeroen
• License: other
• Created: 2015-09-22T11:13:31.000Z (about 9 years ago)
• Default Branch: master
• Last Pushed: 2024-10-03T18:18:34.000Z (about 1 month ago)
• Last Synced: 2024-10-11T18:19:49.329Z (25 days ago)
• Language: C
• Size: 2.69 MB
• Stars: 2
• Watchers: 1
• Forks: 0
• Open Issues: 1
• Metadata Files:
  • Readme: README.md
  • Changelog: NEWS
  • License: LICENSE

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README

        
# brotli

##### *A New Format for Lossless and Lossy Image Compression*

[![CRAN_Status_Badge](http://www.r-pkg.org/badges/version/brotli)](http://cran.r-project.org/package=brotli)

[![CRAN RStudio mirror downloads](http://cranlogs.r-pkg.org/badges/brotli)](https://cran.r-project.org/package=brotli)

> A lossless compressed data format that uses a combination of the

  LZ77 algorithm and Huffman coding. Brotli is similar in speed to deflate (gzip)

  but offers more dense compression.

## Documentation

About the R package:

 - Vignette: [Text Compression in R: brotli, gzip, xz and bz2](https://cran.r-project.org/web/packages/brotli/vignettes/benchmarks.html)

Other resources:

 - [RFC 7932: Brotli Compressed Data Format](https://www.rfc-editor.org/rfc/rfc7932)

 - [Comparison of Brotli, Deflate, Zopfli, LZMA, LZHAM and Bzip2 Compression Algorithms](https://cran.r-project.org/web/packages/brotli/vignettes/brotli-2015-09-22.pdf)

## Hello World

```r

# Simple example

myfile <- file.path(R.home(), "COPYING")

x <- readBin(myfile, raw(), file.info(myfile)$size)

y <- brotli_compress(x)

stopifnot(identical(x, brotli_decompress(y)))

# Compare to other algorithms

length(x)

length(brotli_compress(x))

length(memCompress(x, "gzip"))

length(memCompress(x, "bzip2"))

length(memCompress(x, "xz"))

```

## Installation

The `libbrotli` source code is bundled with the package:

```r

install.package("brotli")

```