1Palm::ZirePhoto(3)    User Contributed Perl Documentation   Palm::ZirePhoto(3)
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NAME

6       Palm::ZirePhoto - Handler for Palm Zire71 Photo thumbnail database
7

VERSION

9       This document describes version 1.400 of Palm::ZirePhoto, released
10       March 14, 2015 as part of Palm version 1.400.
11

SYNOPSIS

13           use Palm::ZirePhoto;
14

DESCRIPTION

16       The Zire71 PDB handler is a helper class for the Palm::PDB package. It
17       parses Zire71 Photo thumbnail databases (and, hopefully, Tungsten Photo
18       databases). Actual photos are separate databases and must be processed
19       separately.
20
21       This database is currently only capable of reading.
22
23   AppInfo block
24       The AppInfo block begins with standard category support. See
25       Palm::StdAppInfo for details.
26
27   Records
28       Records may contain no data fields. This occurs when the record has
29       been marked deleted on the Palm, presumably in order to save space
30       (Photo has no provision for archiving when deleting and the separate
31       database storage for the actual images would make it pointless
32       anyways).
33
34           $record = $pdb->{records}[N]
35
36           $record->{'width'}
37           $record->{'height'}
38           $record->{'size'}
39
40       The actual JPEG images dimensions and (compressed) file size.
41
42           $record->{'thumb'}
43
44       The thumbnail is a very small (max size approx 84x84) JPEG format
45       image.
46
47           $record->{'name'}
48
49       Image name. Appending ".jpg" to this will give the database name of the
50       actual image data.
51
52           $record->{'time1'}
53           $record->{'time2'}
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55       Unix epoch time of when the image was last modified ("time1") and when
56       it was created ("time2").
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58   Photo Databases
59       Actual photos are stored in separate databases. Each record is preceded
60       by an 8 byte header that describes it a) as a data block (DBLK) and b)
61       the size of the block.  Records are generally 4k, except for the last.
62       To convert a Photo database to a JPEG image, one would do something
63       like:
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65               use Palm::Raw;
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67               my $pdb = new Palm::PDB;
68               $pdb->Load( "image.jpg.pdb" );
69               open F, ">image.jpg";
70               for( @{ $pdb->{records} } ) {
71                       print F substr($_->{'data'}, 8);
72               }
73               close F;
74
75       Notes are stored at the end of the JPEG image. Use "ParseNote" to get
76       it.
77

METHODS

79       Handling Palm photos can be a bit complicated. Some helper methods are
80       exported to make some special cases a bit easier.
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82   ParseNote
83               my $photo = read_jpeg_file( "image.jpg" );
84               my $note = Palm::ZirePhoto::ParseNote($photo);
85               print "Note: $note" if defined $note;
86
87       The Palm photo application stores user notes at the end of the JPEG
88       file itself. This method will extract that note and return it. "undef"
89       is returned if the note is unavailable.
90
91   ParseAlbum
92               my $album = slurp("/DCIM/Unfiled/Album.db");
93               my @records = Palm::ZirePhoto::ParseAlbum( $album );
94               print $_->{name},"\n" for( @records );
95
96       Photos on memory cards are stored in subdirectories of "/DCIM". The
97       meta-data for these images are stored in "Album.db" files under each
98       category directory. This method will parse out the meta-data into an
99       array of records similar to those returned by "ParseRecord". Thumbnail
100       information, however, is not available.
101

SEE ALSO

103       Palm::PDB
104
105       Palm::StdAppInfo
106

CONFIGURATION AND ENVIRONMENT

108       Palm::ZirePhoto requires no configuration files or environment
109       variables.
110

INCOMPATIBILITIES

112       None reported.
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BUGS AND LIMITATIONS

115       No bugs have been reported.
116

AUTHORS

118       Alessandro Zummo "<a.zummo AT towertech.it>"
119
120       Currently maintained by Christopher J. Madsen "<perl AT cjmweb.net>"
121
122       Please report any bugs or feature requests to
123       "<bug-Palm AT rt.cpan.org>" or through the web interface at
124       <http://rt.cpan.org/Public/Bug/Report.html?Queue=Palm>.
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126       You can follow or contribute to p5-Palm's development at
127       <https://github.com/madsen/p5-Palm>.
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130       This software is copyright (c) 2003 by Andrew Arensburger & Alessandro
131       Zummo.
132
133       This is free software; you can redistribute it and/or modify it under
134       the same terms as the Perl 5 programming language system itself.
135

DISCLAIMER OF WARRANTY

137       BECAUSE THIS SOFTWARE IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
138       FOR THE SOFTWARE, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT
139       WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER
140       PARTIES PROVIDE THE SOFTWARE "AS IS" WITHOUT WARRANTY OF ANY KIND,
141       EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
142       WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE
143       ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE SOFTWARE IS WITH
144       YOU. SHOULD THE SOFTWARE PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL
145       NECESSARY SERVICING, REPAIR, OR CORRECTION.
146
147       IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
148       WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
149       REDISTRIBUTE THE SOFTWARE AS PERMITTED BY THE ABOVE LICENSE, BE LIABLE
150       TO YOU FOR DAMAGES, INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL, OR
151       CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE THE
152       SOFTWARE (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA BEING
153       RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A
154       FAILURE OF THE SOFTWARE TO OPERATE WITH ANY OTHER SOFTWARE), EVEN IF
155       SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
156       DAMAGES.
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160perl v5.36.0                      2023-01-20                Palm::ZirePhoto(3)
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