package Audio::TagLib::ID3v2::SynchData;

use 5.008003;
use strict;
use warnings;

our $VERSION = '1.1';

use Audio::TagLib;

1;

__END__

=pod

=begin stopwords

Dongxu

=end stopwords

=head1 NAME

Audio::TagLib::ID3v2::SynchData - A few functions for ID3v2 synch safe
integer conversion 

=head1 SYNOPSIS

  use Audio::TagLib::ID3v2::SynchData;
  
  print Audio::TagLib::ID3v2::SynchData->toUInt(
    Audio::TagLib::ByteVector->new("11")), "\n"; # got 6321
  print Audio::TagLib::ID3v2::SynchData->fromUInt(6321)->data(), "\n"; 
  # got "11"

=head1 DESCRIPTION

In the ID3v2.4 standard most integer values are encoded as "synch
safe" integers which are encoded in such a way that they will not give
false MPEG syncs and confuse MPEG decoders. This namespace provides
some methods for converting to and from these values to ByteVectors
for things rendering and parsing ID3v2 data.

=over

=item I<UV toUInt(L<ByteVector|Audio::TagLib::ByteVector> $data)>

This returns the unsigned integer value of $data where $data is a
ByteVector that contains synchsafe integer. The default length of 4 is
used if another value is not specified.

=item I<L<ByteVector|Audio::TagLib::ByteVector> fromUInt(UV $value)>

Returns a 4 byte (32 bit) synchsafe integer based on $value.

=back

=head2 EXPORT

None by default.



=head1 SEE ALSO

L<Audio::TagLib|Audio::TagLib>

=head1 AUTHOR

Dongxu Ma, E<lt>dongxu@cpan.orgE<gt>

=head1 MAINTAINER

Geoffrey Leach GLEACH@cpan.org

=head1 COPYRIGHT AND LICENSE

Copyright (C) 2005-2010 by Dongxu Ma

Copyright (C) 2011 - 2013 Geoffrey Leach

This library is free software; you can redistribute it and/or modify
it under the same terms as Perl itself, either Perl version 5.8.7 or,
at your option, any later version of Perl 5 you may have available.


=cut