Palm::ZirePhoto(3pm)

💖 Palm::ZirePhoto — the Zire71 photo thumbnail database handler, bestie 💖

okay so this is Palm::ZirePhoto, and it lives in the User Contributed Perl Documentation section of the manual, which is giving "somebody in the community wrote this and we're all better for it" energy ✨

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🌸 VERSION 🌸

This doc describes version 1.400 of Palm::ZirePhoto, released March 14, 2015 as part of Palm version 1.400. she's vintage, she's stable, she ate 💅

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🎀 SYNOPSIS 🎀

use Palm::ZirePhoto;

that's it. that's the whole synopsis. no cap 🫶

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✨ 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 too (manifesting 🙏). The actual photos live in separate databases and have to be processed separately, so don't come for this module about the pictures themselves.

⚠️ important: this database is currently only capable of reading. no writing. she's a reader, not a writer, and honestly? valid.

🧸 AppInfo block

The AppInfo block starts with standard category support. Go peek at Palm::StdAppInfo for the deets 💜

📸 Records

Records may contain no data fields. This happens when the record has been marked deleted on the Palm — presumably to save space, since Photo has no provision for archiving when deleting and the separate database storage for the actual images would make it pointless anyways. like, why archive a pointer, bestie 💀

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

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

the actual JPEG image's dimensions and its (compressed) file size 🦋

$record->{'thumb'}

the thumbnail is a very small JPEG format image — max size approx 84x84. tiny. adorable. iconic 🎀

$record->{'name'}

the image name. tack .jpg onto the end of it and you get 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"). so time1 is the glow-up, time2 is the birth 🌈

🌟 Photo Databases

The real 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 one. 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 at them 🔥

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💅 METHODS 💅

Handling Palm photos can be a bit complicated — it's giving situationship, not relationship 😭 — so some helper methods are exported to make the special cases a little easier on everyone.

🍓 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 hand it back to you. "undef" is returned if the note is unavailable — so always check, bestie, don't just assume 🫶

🧚 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 lives in "Album.db" files under each category directory. This method parses out that meta-data into an array of records similar to those returned by "ParseRecord". Thumbnail information, however, is not available — she said no thumbnails today 🙈

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👑 SEE ALSO 👑

• Palm::PDB
• Palm::StdAppInfo

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🌈 CONFIGURATION AND ENVIRONMENT 🌈

Palm::ZirePhoto requires no configuration files and no environment variables. zero setup, plug and play, we love a low-maintenance queen ✨

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💀 INCOMPATIBILITIES 💀

None reported. she plays nice with everybody 🫶

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🐛 BUGS AND LIMITATIONS 🐛

No bugs have been reported. (suspicious? no. she's just built different 💅)

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💜 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>.

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🎀 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 🌸

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⚠️ 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.

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and that's the whole page, bestie 💖 this one shipped as part of perl v5.34.0, dated 2022-06-16 — so go forth, read those thumbnails, and stay iconic 👑✨🎀