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https://github.com/Xastir/Xastir
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db523a33ee
Make all copyright notices include this year. Most say "2000-2026" but some files created later had later start dates, and some created last year only had the start date. They now all have "-2026" regardless. Closes #340
89 lines
3.2 KiB
Perl
Executable file
89 lines
3.2 KiB
Perl
Executable file
#!/usr/bin/env perl
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#
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# Script to create a slideshow from Xastir snapshot images. Note
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# that this script is Unix/Linux-centric due to the use of the $HOME
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# variable and the use of the "cp" command.
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#
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# Written 20090415 by Curt Mills, WE7U
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#
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# Copyright (C) 2000-2026 The Xastir Group
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License
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# as published by the Free Software Foundation; either version 2
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# of the License, or (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
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# 02111-1307, USA.
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#
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#
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# Copies/renames ~/.xastir/tmp/snapshot.png files so that a
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# slideshow can be created from the images at a later date. The
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# script monitors the input directory. Any new snapshot.png file
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# that appears is allowed to age for a few seconds to make sure that
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# Xastir is done writing the file, then the file is copied to the
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# ~/.xastir/tmp/slideshow/ directory as a numbered file. See below
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# for one method for turning these files into an animated GIF, or
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# else bring them up in some slideshow program and display them in
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# numerical order. The name of the file contains the Unix Epoch
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# timestamp (the exact second that the file was made).
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#
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#
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# A note from Carl Makin, vk1kcm, modified slightly by Curt, we7u,
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# regarding creation of an animated GIF from the slideshow images:
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#
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# -------------------------------------------------------------------
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# This will create an animated gif that loops in your browser.
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# gm convert -delay 20 -loop snapshot*.png animation.gif
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# See:
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# http://www.graphicsmagick.org/FAQ.html#how-do-i-create-a-gif-animation-sequence-to-display-within-netscape
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# I think you can also great mpegs by changing the filename to "animation.mpg".
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# -------------------------------------------------------------------
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#
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$home = $ENV{"HOME"};
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$input_dir = "$home/.xastir/tmp";
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$output_dir = "$input_dir/slideshow";
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# Create the slideshow directory if it doesn't exist
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mkdir $output_dir;
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chdir $input_dir;
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while (1) {
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$current_time = time;
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# Snag the age of the existing snapshot.png file
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$number = (stat("snapshot.png"))[9];
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$difference = $current_time - $number;
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# If the age of the file is more than 15 seconds but less than 31
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# minutes, copy the file to the slideshow directory and rename it
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# along the way. Note that Xastir can produce snapshots at a rate
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# of between one per minute, and one per 30 minutes.
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#
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if ( ($difference > 15) && ($difference < (31 * 60)) ) {
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# Copy the snapshot image to the slideshow directory, renaming
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# it with the Unix Epoch time, something like: "1239897417.png".
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# Only copies the file if the source file is newer than the
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# destination, which prevents copying the file again and again
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# if it's the last file in your sequence.
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#
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`cp -u snapshot.png $output_dir/$number.png`;
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}
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sleep 30;
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}
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