lav-outils/podcasts/scripts/make-all-podcasts.pl

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#!/usr/bin/perl
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# Copyright (C) 2019 Quentin GIBEAUX <qgibeaux@april.org>
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# Copyright (C) 2019 Frédéric COUCHET <fcouchet@april.org>
# Copyright (C) 2019 Christian Pierre MOMON <cmomon@april.org>
#
# This file is part of lav-outils from "April/Libre à vous !"
#
# This script is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as
# published by the Free Software Foundation, either version 3 of the
# License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
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use strict;
use Getopt::Long;
use JSON;
use Data::Dumper;
use utf8;
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my ($help,$config,$verbose,$dryrun);
my $meta_data_script = "lav-outils/podcasts/scripts/make-metadata-image-podcast.sh";
my $verbose;
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my $mp3;
my $textwebpage="<ul>\n";
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GetOptions ("help" => \$help,
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"config=s" => \$config,
"mp3" => \$mp3,
"verbose" => \$verbose,
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"dryrun" => \$dryrun);
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if($help) {
usage();
} elsif( not $config ) {
print " /!\\ Missing config arg\n\n";
usage();
}
sub usage {
print <<EOS
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Exec commands to cut and process LAV! podcast with json file containing the timestamps and sections to be cut.
Needs JSON perl library (apt install libjson-perl)
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$0 --config conf_file.json
--config conf_file.json the configuration file containing stuff
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--mp3 generate mp3 files
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--help show this message
--verbose increase verbosity
--dryrun print commands without executing them
EOS
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;
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}
sub read_config {
my ($filename) = @_;
my $json_text = do { #read all the file in one shot
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open(my $json_fh, '<:encoding(UTF-8)', $filename)
or die("Can't open \$filename\": $!\n");
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local $/;
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<$json_fh>
};
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my $json = JSON->new;
my $data = $json->decode($json_text);
return $data;
}
sub process {
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my ($config,$mp3,$verbose,$dryrun)=@_;
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my $data = read_config($config);
my $short_date = $data->{short_date};
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my $year = substr $short_date,0,4;
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my $long_date = $data->{long_date};
my $source_name = "libre-a-vous-$short_date";
my $title = "Libre à vous ! du $long_date sur Cause Commune";
my $short_description = $data->{short_description};
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my $ffmpeg_bin = $data->{ffmpeg_bin};
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my $option_mp3_meta_data_script;
my @formats_files;
if($mp3) {
@formats_files = qw/ogg mp3/;
$option_mp3_meta_data_script = "yes";
}
else {
@formats_files = qw/ogg/;
$option_mp3_meta_data_script = "no";
}
for my $chapter (values @{$data->{chapters}}) {
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my $start = $chapter->{start_timestamp};
my $end = $chapter->{end_timestamp};
my $short_chapter_name = $chapter->{short_chapter_name};
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my $chapter_title = $chapter->{chapter_title};
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# cutting chapter
my $command = "$ffmpeg_bin -y -i $source_name.ogg -vn -acodec copy -ss \"$start\" -to \"$end\" $source_name-$short_chapter_name.ogg";
if($dryrun) {
print "$command\n";
} else {
my @ret = `$command`;
if($?) {
print "Error while cutting $short_chapter_name\n";
if($verbose) {
print Dumper @ret;
print Dumper $data;
}
return 0;
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}
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}
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# putting metadata
my $url = "https://media.april.org/audio/radio-cause-commune/libre-a-vous/emissions/$short_date/$source_name-$short_chapter_name.ogg";
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my $command = "$meta_data_script -s \"$source_name-$short_chapter_name.ogg\" -d \"output\" -u \"$url\" -t \"$title - Partie $chapter_title\" -p \"$ffmpeg_bin\" -y \"$year\" -m \"$option_mp3_meta_data_script\"";
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if($dryrun) {
print "$command\n";
} else {
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my @ret = `$command`;
if($?) {
print "Error while setting metadata in $short_chapter_name\n";
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if($verbose) {
print Dumper @ret;
print Dumper $data;
}
return 0;
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}
}
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# Update string for web site
my $command = "mediainfo --Inform=\"Audio;%Duration/String%\" output.ogg";
if($dryrun) {
print "$command\n";
} else {
my @ret = `$command`;
if($?) {
print "Error while updating string for web site\n";
if($verbose) {
print Dumper @ret;
print Dumper $data;
}
return 0;
} else {
chomp($ret[0]);
$ret[0] =~ s/s/secondes/ig;
$ret[0] =~ s/min/minutes/ig;
my $url2 = $url =~ s/\.ogg/\.mp3/r;
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$textwebpage = $textwebpage . "<li><a href=\"$url\">$chapter_title</a> (format OGG) (et <a href=\"$url2\">format MP3</a>) ($ret[0])</li>\n";
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}
}
# renaming to target OGG and MP3
foreach my $format (@formats_files) {
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my $target_name = "$source_name-$short_chapter_name.$format";
my $command = "mv output.$format $target_name";
if($dryrun) {
print "$command\n";
} else {
my @ret = `$command`;
if($?) {
print "Error while renaming $short_chapter_name.$format\n";
if($verbose) {
print Dumper @ret;
print Dumper $data;
}
return 0;
}
}
# hashing
my $command = "sha1sum $target_name > $target_name.sha1";
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if($dryrun) {
print "$command\n";
} else {
my @ret = `$command`;
if($?) {
print "Error while hashing $target_name\n";
if($verbose) {
print Dumper @ret;
print Dumper $data;
}
return 0;
}
}
# generate .size
my $command = "du -b $target_name |awk '{print $1}' > $target_name.size";
if($dryrun) {
print "$command\n";
} else {
my @ret = `$command`;
if($?) {
print "Error while generation size of $target_name\n";
if($verbose) {
print Dumper @ret;
print Dumper $data;
}
return 0;
}
}
# generate duration
# my $command = "ffprobe $target_name -show_entries format=duration -sexagesimal 2> /dev/null |grep duration |sed '1,\$s/duration=//' > $target_name.duration";
my $command = "mediainfo --Inform='General;%Duration/String3%' $target_name > $target_name.duration";
if($dryrun) {
print "$command\n";
} else {
my @ret = `$command`;
if($?) {
print "Error while generation duration of $target_name\n";
if($verbose) {
print Dumper @ret;
print Dumper $data;
}
return 0;
}
}
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}
}
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# putting metadata in main podcast
my $url = "https://media.april.org/audio/radio-cause-commune/libre-a-vous/emissions/$short_date/$source_name.ogg";
my $command = "$meta_data_script -s \"$source_name.ogg\" -d \"output\" -u \"$url\" -t \"$title - $short_description\" -p \"$ffmpeg_bin\" -y \"$year\" -m \"$option_mp3_meta_data_script\"";
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if($dryrun) {
print "$command\n";
} else {
my @ret = `$command`;
if($?) {
print "Error while setting metadata in $source_name\n";
if($verbose) {
print Dumper @ret;
print Dumper $data;
}
return 0;
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}
}
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# renaming to target OGG and MP3
foreach my $format (@formats_files) {
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my $command = "mv output.$format $source_name.$format";
if($dryrun) {
print "$command\n";
} else {
my @ret = `$command`;
if($?) {
print "Error while renaming $source_name.$format\n";
if($verbose) {
print Dumper @ret;
print Dumper $data;
}
return 0;
}
}
# hashing
my $command = "sha1sum $source_name.$format > $source_name.$format.sha1";
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if($dryrun) {
print "$command\n";
} else {
my @ret = `$command`;
if($?) {
print "Error while hashing $source_name.$format\n";
if($verbose) {
print Dumper @ret;
print Dumper $data;
}
return 0;
}
}
}
$textwebpage = $textwebpage . "</ul>\n\n";
binmode(STDOUT, ":utf8");
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my $url = "https://www.april.org/libre-a-vous-diffusee-mardi-$long_date-sur-radio-cause-commune";
$url=~s/ /-/g;
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print "\nText for the web page of the radio program : $url\n\n";
print "$textwebpage\n\n";
print "Add the html code on $url\n\n";
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print "And remove the line : <p>Les podcasts seront disponibles après la diffusion de l'émission (quelques jours après en général).</p>\n\n";
if(! $mp3) {
print "MP3 files not generated, please use --mp3 option to generate them\n";
}
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}
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process($config,$mp3,$verbose,$dryrun);