bionic (3) Palm::ZirePhoto.3pm.gz

NAME

       Palm::ZirePhoto - Handler for Palm Zire71 Photo thumbnail database

VERSION

       This document describes version 1.400 of Palm::ZirePhoto, released March 14, 2015 as part of Palm version
       1.400.

SYNOPSIS

           use Palm::ZirePhoto;

DESCRIPTION

       The Zire71 PDB handler is a helper class for the Palm::PDB package. It parses Zire71 Photo thumbnail
       databases (and, hopefully, Tungsten Photo databases). Actual photos are separate databases and must be
       processed separately.

       This database is currently only capable of reading.

   AppInfo block
       The AppInfo block begins with standard category support. See Palm::StdAppInfo for details.

   Records
       Records may contain no data fields. This occurs when the record has been marked deleted on the Palm,
       presumably in order to save space (Photo has no provision for archiving when deleting and the separate
       database storage for the actual images would make it pointless anyways).

           $record = $pdb->{records}[N]

           $record->{'width'}
           $record->{'height'}
           $record->{'size'}

       The actual JPEG images dimensions and (compressed) file size.

           $record->{'thumb'}

       The thumbnail is a very small (max size approx 84x84) JPEG format image.

           $record->{'name'}

       Image name. Appending ".jpg" to this will give the database name of the actual image data.

           $record->{'time1'}
           $record->{'time2'}

       Unix epoch time of when the image was last modified ("time1") and when it was created ("time2").

   Photo Databases
       Actual photos are stored in separate databases. Each record is preceded by an 8 byte header that
       describes it a) as a data block (DBLK) and b) the size of the block.  Records are generally 4k, except
       for the last. To convert a Photo database to a JPEG image, one would do something like:

               use Palm::Raw;

               my $pdb = new Palm::PDB;
               $pdb->Load( "image.jpg.pdb" );
               open F, ">image.jpg";
               for( @{ $pdb->{records} } ) {
                       print F substr($_->{'data'}, 8);
               }
               close F;

       Notes are stored at the end of the JPEG image. Use "ParseNote" to get it.

METHODS

       Handling Palm photos can be a bit complicated. Some helper methods are exported to make some special
       cases a bit easier.

   ParseNote
               my $photo = read_jpeg_file( "image.jpg" );
               my $note = Palm::ZirePhoto::ParseNote($photo);
               print "Note: $note" if defined $note;

       The Palm photo application stores user notes at the end of the JPEG file itself. This method will extract
       that note and return it. "undef" is returned if the note is unavailable.

   ParseAlbum
               my $album = slurp("/DCIM/Unfiled/Album.db");
               my @records = Palm::ZirePhoto::ParseAlbum( $album );
               print $_->{name},"\n" for( @records );

       Photos on memory cards are stored in subdirectories of "/DCIM". The meta-data for these images are stored
       in "Album.db" files under each category directory. This method will parse out the meta-data into an array
       of records similar to those returned by "ParseRecord". Thumbnail information, however, is not available.

SEE ALSO

       Palm::PDB

       Palm::StdAppInfo

CONFIGURATION AND ENVIRONMENT

       Palm::ZirePhoto requires no configuration files or environment variables.

INCOMPATIBILITIES

       None reported.

BUGS AND LIMITATIONS

       No bugs have been reported.

AUTHORS

       Alessandro Zummo "<a.zummo AT towertech.it>"

       Currently maintained by Christopher J. Madsen "<perl AT cjmweb.net>"

       Please report any bugs or feature requests to "<bug-Palm AT rt.cpan.org>" or through the web interface at
       <http://rt.cpan.org/Public/Bug/Report.html?Queue=Palm>.

       You can follow or contribute to p5-Palm's development at <https://github.com/madsen/p5-Palm>.

COPYRIGHT AND LICENSE

       This software is copyright (c) 2003 by Andrew Arensburger & Alessandro Zummo.

       This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5
       programming language system itself.

DISCLAIMER OF WARRANTY

       BECAUSE THIS SOFTWARE IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY FOR THE SOFTWARE, TO THE EXTENT
       PERMITTED BY APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER
       PARTIES PROVIDE THE SOFTWARE "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED,
       INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
       PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE SOFTWARE IS WITH YOU. SHOULD THE
       SOFTWARE PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, REPAIR, OR CORRECTION.

       IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING WILL ANY COPYRIGHT HOLDER, OR ANY
       OTHER PARTY WHO MAY MODIFY AND/OR REDISTRIBUTE THE SOFTWARE AS PERMITTED BY THE ABOVE LICENSE, BE LIABLE
       TO YOU FOR DAMAGES, INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING OUT OF
       THE USE OR INABILITY TO USE THE SOFTWARE (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA BEING
       RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A FAILURE OF THE SOFTWARE TO OPERATE
       WITH ANY OTHER SOFTWARE), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
       DAMAGES.