--- /dev/null
+package C4::HTML5Media;
+
+# Copyright 2012 Mirko Tietgen
+#
+# This file is part of Koha.
+#
+# Koha is free software; you can redistribute it and/or modify it under the
+# terms of the GNU General Public License as published by the Free Software
+# Foundation; either version 2 of the License, or (at your option) any later
+# version.
+#
+# Koha 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 General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License along
+# with Koha; if not, write to the Free Software Foundation, Inc.,
+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
+use strict;
+use warnings;
+
+use C4::Context;
+use MARC::Field;
+
+
+=head1 HTML5Media
+
+C4::HTML5Media
+
+=head1 Description
+
+This module gets the relevant data from field 856 (MARC21/UNIMARC) to create a HTML5 audio or video element containing the file(s) catalogued in 856.
+
+=cut
+
+=head2 gethtml5media
+
+Get all relevant data from field 856. Takes $template and $record in the subroutine call, sets appropriate params.
+
+=cut
+
+sub gethtml5media {
+ my $self = shift;
+ my $template = shift;
+ my $record = shift;
+ my @HTML5Media_sets = ();
+ my @HTML5Media_fields = $record->field(856);
+ my $HTML5MediaParent;
+ my $HTML5MediaWidth;
+ my @HTML5MediaExtensions = split( /\|/, C4::Context->preference("HTML5MediaExtensions") );
+ my $marcflavour = C4::Context->preference("marcflavour");
+ foreach my $HTML5Media_field (@HTML5Media_fields) {
+ my %HTML5Media;
+ # protocol
+ if ( $HTML5Media_field->indicator(1) eq '1' ) {
+ $HTML5Media{protocol} = 'ftp';
+ }
+ elsif ( $HTML5Media_field->indicator(1) eq '4' ) {
+ $HTML5Media{protocol} = 'http';
+ }
+ elsif ( $HTML5Media_field->indicator(1) eq '7' ) {
+ if ($marcflavour eq 'MARC21' || $marcflavour eq 'NORMARC') {
+ $HTML5Media{protocol} = $HTML5Media_field->subfield('2');
+ }
+ elsif ($marcflavour eq 'UNIMARC') {
+ $HTML5Media{protocol} = $HTML5Media_field->subfield('y');
+ }
+ }
+ else {
+ $HTML5Media{protocol} = 'http';
+ }
+ # user
+ if ( $HTML5Media_field->subfield('l') ) {
+ $HTML5Media{username} = $HTML5Media_field->subfield('l'); # yes, that is arbitrary if h and l are not the same. originally i flipped a coin in that case.
+ }
+ elsif ( $HTML5Media_field->subfield('h') ) {
+ $HTML5Media{username} = $HTML5Media_field->subfield('h');
+ }
+ # user/pass
+ if ( $HTML5Media{username} && $HTML5Media_field->subfield('k') ) {
+ $HTML5Media{loginblock} = $HTML5Media{username} . ':' . $HTML5Media_field->subfield('k') . '@';
+ }
+ elsif ( $HTML5Media{username} ) {
+ $HTML5Media{loginblock} = $HTML5Media{username} . '@';
+ }
+ else {
+ $HTML5Media{loginblock} = '';
+ }
+ # port
+ if ( $HTML5Media_field->subfield('p') ) {
+ $HTML5Media{portblock} = ':' . $HTML5Media_field->subfield('k');
+ }
+ else {
+ $HTML5Media{portblock} = '';
+ }
+ # src
+ if ( $HTML5Media_field->subfield('u') ) {
+ $HTML5Media{srcblock} = $HTML5Media_field->subfield('u');
+ }
+ elsif ( $HTML5Media_field->subfield('a') && $HTML5Media_field->subfield('d') && $HTML5Media_field->subfield('f') ) {
+ $HTML5Media{host} = $HTML5Media_field->subfield('a');
+ $HTML5Media{host} =~ s/(^\/|\/$)//g;
+ $HTML5Media{path} = $HTML5Media_field->subfield('d');
+ $HTML5Media{path} =~ s/(^\/|\/$)//g;
+ $HTML5Media{file} = $HTML5Media_field->subfield('f');
+ $HTML5Media{srcblock} = $HTML5Media{protocol} . '://' . $HTML5Media{loginblock} . $HTML5Media{host} . $HTML5Media{portblock} . '/' . $HTML5Media{path} . '/' . $HTML5Media{file};
+ }
+ else {
+ next; # no file to play
+ }
+ # extension
+ $HTML5Media{extension} = ($HTML5Media{srcblock} =~ m/([^.]+)$/)[0];
+ if ( !grep /$HTML5Media{extension}/, @HTML5MediaExtensions ) {
+ next; # not a specified media file
+ }
+ # mime
+ if ( $HTML5Media_field->subfield('c') ) {
+ $HTML5Media{codecs} = $HTML5Media_field->subfield('c');
+ }
+ ### from subfield q…
+ if ( $HTML5Media_field->subfield('q') ) {
+ $HTML5Media{mime} = $HTML5Media_field->subfield('q');
+ }
+ ### …or from file extension and codecs…
+ elsif ( $HTML5Media{codecs} ) {
+ if ( $HTML5Media{codecs} =~ /theora.*vorbis/ ) {
+ $HTML5Media{mime} = 'video/ogg';
+ }
+ elsif ( $HTML5Media{codecs} =~ /vp8.*vorbis/ ) {
+ $HTML5Media{mime} = 'video/webm';
+ }
+ elsif ( ($HTML5Media{codecs} =~ /^vorbis$/) && ($HTML5Media{extension} eq 'ogg') ) {
+ $HTML5Media{mime} = 'audio/ogg';
+ }
+ elsif ( ($HTML5Media{codecs} =~ /^vorbis$/) && ($HTML5Media{extension} eq 'webm') ) {
+ $HTML5Media{mime} = 'audio/webm';
+ }
+ }
+ ### …or just from file extension
+ else {
+ if ( $HTML5Media{extension} eq 'ogv' ) {
+ $HTML5Media{mime} = 'video/ogg';
+ $HTML5Media{codecs} = 'theora,vorbis';
+ }
+ if ( $HTML5Media{extension} eq 'oga' ) {
+ $HTML5Media{mime} = 'audio/ogg';
+ $HTML5Media{codecs} = 'vorbis';
+ }
+ elsif ( $HTML5Media{extension} eq 'spx' ) {
+ $HTML5Media{mime} = 'audio/ogg';
+ $HTML5Media{codecs} = 'speex';
+ }
+ elsif ( $HTML5Media{extension} eq 'opus' ) {
+ $HTML5Media{mime} = 'audio/ogg';
+ $HTML5Media{codecs} = 'opus';
+ }
+ elsif ( $HTML5Media{extension} eq 'vtt' ) {
+ $HTML5Media{mime} = 'text/vtt';
+ }
+ }
+ # codecs
+ if ( $HTML5Media{codecs} ) {
+ $HTML5Media{codecblock} = '; codecs="' . $HTML5Media{codecs} . '"';
+ }
+ else {
+ $HTML5Media{codecblock} = '';
+ }
+ # type
+ if ( $HTML5Media{mime} ) {
+ $HTML5Media{typeblock} = ' type=\'' . $HTML5Media{mime} . $HTML5Media{codecblock} . '\'';
+ }
+ else {
+ $HTML5Media{typeblock} = '';
+ }
+ # element
+ if ( $HTML5Media{mime} =~ /audio/ ) {
+ $HTML5Media{type} = 'audio';
+ }
+ elsif ( $HTML5Media{mime} =~ /video/ ) {
+ $HTML5Media{type} = 'video';
+ }
+ elsif ( $HTML5Media{mime} =~ /text/ ) {
+ $HTML5Media{type} = 'track';
+ }
+ # push
+ if ( $HTML5Media{srcblock} && $HTML5Media{type} ) {
+ push (@HTML5Media_sets, \%HTML5Media);
+ }
+ }
+ # parent element
+ for my $i ( 0 .. $#HTML5Media_sets ) {
+ if ( ($HTML5Media_sets[$i]{mime}) && ($HTML5Media_sets[$i]{mime} =~ /audio/) ) {
+ if ( $HTML5MediaParent ne 'video' ) {
+ $HTML5MediaParent = 'audio';
+ $HTML5MediaWidth = '';
+ }
+ }
+ elsif ( ($HTML5Media_sets[$i]{mime}) && ($HTML5Media_sets[$i]{mime} =~ /video/) ) {
+ $HTML5MediaParent = 'video';
+ $HTML5MediaWidth = ' width="480"';
+ }
+ }
+ # child element
+ for my $j ( 0 .. $#HTML5Media_sets ) {
+ if ( ($HTML5Media_sets[$j]{type}) && ( ($HTML5Media_sets[$j]{type} eq 'video') || ($HTML5Media_sets[$j]{type} eq 'audio') ) ) {
+ if ( $HTML5Media_sets[$j]{type} eq $HTML5MediaParent ) {
+ $HTML5Media_sets[$j]{child} = 'source';
+ }
+ }
+ else {
+ $HTML5Media_sets[$j]{child} = $HTML5Media_sets[$j]{type};
+ }
+ }
+ # template parameters
+ if ( (scalar(@HTML5Media_sets) > 0) && ($HTML5MediaParent) ) {
+ $template->param(
+ HTML5MediaEnabled => 1,
+ HTML5MediaSets => \@HTML5Media_sets,
+ HTML5MediaParent => $HTML5MediaParent,
+ HTML5MediaWidth => $HTML5MediaWidth);
+ }
+ return $template;
+}
+
+1;
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