lib/IO/Uncompress/Brotli.pm

   1 package IO::Uncompress::Brotli;
   2
   3 use 5.014000;
   4 use strict;
   5 use warnings;
   6 use parent qw/Exporter/;
   7
   8 our @EXPORT = qw/unbro/;
   9 our @EXPORT_OK = @EXPORT;
  10
  11 our $VERSION = '0.001001';
  12
  13 require XSLoader;
  14 XSLoader::load('IO::Compress::Brotli', $VERSION);
  15
  16 1;
  17 __END__
  18
  19 =encoding utf-8
  20
  21 =head1 NAME
  22
  23 IO::Uncompress::Brotli - Read Brotli buffers/streams
  24
  25 =head1 SYNOPSIS
  26
  27   use IO::Uncompress::Brotli;
  28
  29   # uncompress a buffer
  30   my $decoded = unbro $encoded;
  31
  32   # uncompress a stream
  33   my $bro = IO::Uncompress::Brotli->create;
  34   while(have_input()) {
  35      my $block = get_input_block();
  36      my $decoded_block = $bro->decompress($block);
  37      handle_output_block($decoded_block);
  38   }
  39
  40 =head1 DESCRIPTION
  41
  42 IO::Uncompress::Brotli is a module that decompresses Brotli buffers
  43 and streams. Despite its name, it is not a subclass of
  44 L<IO::Uncompress::Base> and does not implement its interface. This
  45 will be rectified in a future release.
  46
  47 =head2 One-shot interface
  48
  49 If you have the whole buffer in a Perl scalar use the B<unbro>
  50 function.
  51
  52 =over
  53
  54 =item B<unbro>(I<$input>)
  55
  56 Takes a whole compressed buffer as input and returns the decompressed
  57 data. This function relies on the BrotliDecompressedSize function. In
  58 other words, it only works if the buffer has a single meta block or
  59 two meta-blocks where the first is uncompressed and the second is
  60 empty.
  61
  62 Exported by default.
  63
  64 =back
  65
  66 =head2 Streaming interface
  67
  68 If you want to process the data in blocks use the object oriented
  69 interface. The available methods are:
  70
  71 =over
  72
  73 =item IO::Uncompress::Brotli->B<create>
  74
  75 Returns a IO::Uncompress::Brotli instance. Please note that a single
  76 instance cannot be used to decompress multiple streams.
  77
  78 =item $bro->B<decompress>(I<$block>)
  79
  80 Takes the a block of compressed data and returns a block of
  81 uncompressed data. Dies on error.
  82
  83 =back
  84
  85 =head1 SEE ALSO
  86
  87 Brotli Compressed Data Format Internet-Draft:
  88 L<https://www.ietf.org/id/draft-alakuijala-brotli-08.txt>
  89
  90 Brotli source code: L<https://github.com/google/brotli/>
  91
  92 =head1 AUTHOR
  93
  94 Marius Gavrilescu, E<lt>marius@ieval.roE<gt>
  95
  96 =head1 COPYRIGHT AND LICENSE
  97
  98 Copyright (C) 2015 by Marius Gavrilescu
  99
 100 This library is free software; you can redistribute it and/or modify
 101 it under the same terms as Perl itself, either Perl version 5.20.2 or,
 102 at your option, any later version of Perl 5 you may have available.
 103
 104
 105 =cut