| 1 | ###########################################################################
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| 2 | #
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| 3 | # TimedHTMLPlug.pm --
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| 4 | #
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| 5 | # A component of the Greenstone digital library software
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| 6 | # from the New Zealand Digital Library Project at the
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| 7 | # University of Waikato, New Zealand.
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| 8 | #
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| 9 | # Copyright (C) 1999 New Zealand Digital Library Project
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| 10 | #
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| 11 | # This program is free software; you can redistribute it and/or modify
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| 12 | # it under the terms of the GNU General Public License as published by
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| 13 | # the Free Software Foundation; either version 2 of the License, or
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| 14 | # (at your option) any later version.
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| 15 | #
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| 16 | # This program is distributed in the hope that it will be useful,
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| 17 | # but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 18 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 19 | # GNU General Public License for more details.
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| 20 | #
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| 21 | # You should have received a copy of the GNU General Public License
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| 22 | # along with this program; if not, write to the Free Software
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| 23 | # Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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| 24 | #
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| 25 | ###########################################################################
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| 26 |
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| 27 |
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| 28 | package TimedHTMLPlugin;
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| 29 |
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| 30 | use HTMLPlugin;
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| 31 | use VideoConverter;
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| 32 |
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| 33 | sub BEGIN {
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| 34 | @TimedHTMLPlugin::ISA = ('HTMLPlugin', 'VideoConverter');
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| 35 | }
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| 36 |
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| 37 |
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| 38 | use strict; # every perl program should have this!
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| 39 | no strict 'refs'; # make an exception so we can use variables as filehandles
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| 40 |
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| 41 | my $arguments =
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| 42 | [
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| 43 | { 'name' => "video_excerpt_duration",
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| 44 | 'desc' => "{VideoPlug.video_excerpt_duration}",
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| 45 | 'type' => "string",
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| 46 | 'reqd' => "no" }
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| 47 | ];
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| 48 |
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| 49 |
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| 50 |
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| 51 |
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| 52 | my $options = { 'name' => "TimedHTMLPlugin",
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| 53 | 'desc' => "{TimedHTMLPlugin.desc}",
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| 54 | 'abstract' => "no",
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| 55 | 'inherits' => "yes",
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| 56 | 'args' => $arguments };
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| 57 |
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| 58 |
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| 59 | sub new {
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| 60 | my ($class) = shift (@_);
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| 61 | my ($pluginlist,$inputargs,$hashArgOptLists) = @_;
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| 62 | push(@$pluginlist, $class);
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| 63 |
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| 64 | if(defined $arguments){ push(@{$hashArgOptLists->{"ArgList"}},@{$arguments});}
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| 65 | if(defined $options) { push(@{$hashArgOptLists->{"OptList"}},$options)};
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| 66 |
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| 67 | new VideoConverter($pluginlist, $inputargs, $hashArgOptLists);
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| 68 |
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| 69 | my $self = (defined $hashArgOptLists)
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| 70 | ? new HTMLPlugin($pluginlist,$inputargs,$hashArgOptLists)
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| 71 | : new HTMLPlugin($pluginlist,$inputargs);
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| 72 |
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| 73 | my $collect_dir = $ENV{'GSDLCOLLECTDIR'};
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| 74 |
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| 75 | my $collect_bin = &util::filename_cat($collect_dir,"bin");
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| 76 | my $collect_script = &util::filename_cat($collect_bin,"script");
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| 77 |
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| 78 | $ENV{'PATH'} .= ":" if (defined $ENV{'PATH'});
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| 79 | $ENV{'PATH'} .= "$collect_bin:$collect_script";
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| 80 |
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| 81 | return bless $self, $class;
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| 82 | }
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| 83 |
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| 84 | sub begin {
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| 85 | my $self = shift (@_);
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| 86 | my ($pluginfo, $base_dir, $processor, $maxdocs) = @_;
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| 87 |
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| 88 | $self->SUPER::begin(@_);
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| 89 | $self->VideoConverter::begin(@_);
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| 90 | }
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| 91 |
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| 92 |
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| 93 | sub init {
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| 94 | my $self = shift (@_);
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| 95 | my ($verbosity, $outhandle, $failhandle) = @_;
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| 96 |
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| 97 | $self->SUPER::init(@_);
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| 98 | $self->VideoConverter::init(@_);
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| 99 | }
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| 100 |
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| 101 |
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| 102 | sub html_to_text
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| 103 | {
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| 104 | my ($self, $text) = @_;
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| 105 |
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| 106 | $text =~ s/<\/?[^>]*>//g;
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| 107 |
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| 108 | $text =~ s/ / /g;
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| 109 |
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| 110 | $text =~ s/\s+/ /gs;
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| 111 | $text =~ s/^\s+//;
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| 112 | $text =~ s/\s+$//;
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| 113 |
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| 114 | return $text;
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| 115 | }
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| 116 |
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| 117 |
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| 118 | sub extract_metadata_table
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| 119 | {
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| 120 | my ($self, $textref) = @_;
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| 121 |
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| 122 | my $metatable_store = {};
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| 123 |
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| 124 | my $metatable_re = "<table([^>]*)>(.*?<p[^>]+class=\"?Metadata\"?[^>]*>.*?)<\\/table>";
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| 125 |
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| 126 | if ($$textref =~ m/$metatable_re/gsi) {
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| 127 | my $metatable_attr = $1;
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| 128 | my $metatable_body = $2;
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| 129 |
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| 130 | my @tr_list = ($metatable_body =~ m/(<tr[^>]*>.*?<\/tr>)/gsi);
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| 131 |
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| 132 | my @filtered_tr_list = ();
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| 133 |
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| 134 | foreach my $tr (@tr_list) {
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| 135 |
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| 136 | my $in_filtered_tr = 1;
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| 137 |
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| 138 | my @td_list = ($tr =~ m/<td[^>]*>(.*?)<\/td>/gsi);
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| 139 | my $td_list_num = scalar(@td_list);
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| 140 |
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| 141 | if ($td_list_num == 2) {
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| 142 | my $meta_name = $self->html_to_text($td_list[0]);
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| 143 | my $meta_value = $self->html_to_text($td_list[1]);
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| 144 |
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| 145 | $meta_name =~ s/\s*//g;
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| 146 |
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| 147 |
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| 148 | if ($meta_value =~ m/^(\s*|\?+)$/) {
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| 149 | $in_filtered_tr = 0;
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| 150 | }
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| 151 | else {
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| 152 | my $meta_name_label = $meta_name;
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| 153 | $meta_name_label =~ s/\s+//g;
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| 154 |
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| 155 | $metatable_store->{$meta_name_label} = $meta_value;
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| 156 |
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| 157 | if ($meta_name_label =~ m/^GS\./) {
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| 158 | # even though we want to store this as metadata, we
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| 159 | # don't want this going into table presented at top of document
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| 160 | $in_filtered_tr = 0;
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| 161 | }
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| 162 |
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| 163 | }
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| 164 | }
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| 165 | else {
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| 166 | print STDERR "Warning: Metadata table does not consist of two cells (metadata name : metadata value)\n";
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| 167 | print STDERR " Skipping\n";
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| 168 | }
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| 169 |
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| 170 |
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| 171 | if ($in_filtered_tr) {
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| 172 | push(@filtered_tr_list,$tr);
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| 173 | }
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| 174 | }
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| 175 |
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| 176 | my $filtered_tr_block = join("\n",@filtered_tr_list);
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| 177 | my $filtered_table = "<table$metatable_attr>$filtered_tr_block</table>";
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| 178 |
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| 179 |
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| 180 | ### my $metatable_re = "<table[^>]*>.*?<p class=\"?Metadata\"?>.*?<\\/table>";
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| 181 |
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| 182 | ### print STDERR "*** filtered table = $filtered_table\n";
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| 183 |
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| 184 | $$textref =~ s/$metatable_re/$filtered_table/si;
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| 185 |
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| 186 | }
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| 187 |
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| 188 | return $metatable_store;
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| 189 |
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| 190 | }
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| 191 |
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| 192 |
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| 193 |
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| 194 |
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| 195 |
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| 196 | my $only_num = 0;
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| 197 | my $only_limit = 100;
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| 198 |
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| 199 | sub hms_to_secs
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| 200 | {
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| 201 | my $self = shift @_;
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| 202 | my ($hh,$mm,$ss) = @_;
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| 203 |
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| 204 | return $hh*3600 + $mm*60 + $ss;
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| 205 | }
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| 206 |
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| 207 |
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| 208 |
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| 209 | sub timed_event
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| 210 | {
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| 211 | my $self = shift (@_);
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| 212 |
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| 213 | my ($front, $tape, $hh, $mm, $ss, $back) = @_;
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| 214 |
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| 215 | my $time_encoded = "$hh:$mm:$ss";
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| 216 | my $time_encoded_file = "$hh$mm$ss";
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| 217 |
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| 218 | print STDERR "***** time endocde = $time_encoded\n";
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| 219 |
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| 220 | my $time_pos = $self->{'time_pos'};
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| 221 | my $time_num = scalar(@{$self->{'time_seq'}});
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| 222 |
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| 223 | #### my $videoconvert = $self->{'videoconvert'};
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| 224 |
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| 225 | # excerpt from tim_pos -> time_pos + 2;
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| 226 | my $adv_time_pos = $time_pos+2;
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| 227 | $adv_time_pos = $time_num-1 if ($adv_time_pos>=$time_num);
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| 228 |
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| 229 | my $adv_time_elem = $self->{'time_seq'}->[$adv_time_pos];
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| 230 |
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| 231 | # print STDERR "*** ", substr($adv_time_elem,0,800), "\n";
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| 232 |
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| 233 | my ($atape,$ah,$am,$as) = ($adv_time_elem =~ m/(T\d+:) ?(\d\d):(\d\d):(\d\d)(?:\:\d\d)?/);
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| 234 |
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| 235 | my $excerpt_len = undef;
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| 236 | my $time_in_secs = $self->hms_to_secs($hh,$mm,$ss);
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| 237 |
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| 238 | if (!defined $tape) {
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| 239 | if (defined $self->{'ptape'}) {
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| 240 | $tape = $self->{'ptape'};
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| 241 | }
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| 242 | else {
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| 243 | print STDERR "Warning: First time offset does not define tape side\n";
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| 244 | print STDERR " Defaulting to 1\n";
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| 245 | $tape = "T1:";
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| 246 | }
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| 247 | }
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| 248 |
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| 249 | if (!defined $atape) {
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| 250 | $atape = "T1";
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| 251 | }
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| 252 |
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| 253 | # print STDERR "**** atape = $atape\n";
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| 254 | # print STDERR "*** tape = $tape\n";
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| 255 |
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| 256 | if ($atape eq $tape) {
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| 257 | my $adv_time_in_secs = $self->hms_to_secs($ah,$am,$as);
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| 258 |
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| 259 | $excerpt_len = $adv_time_in_secs - $time_in_secs;
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| 260 | }
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| 261 |
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| 262 | my $collect_dir = $ENV{'GSDLCOLLECTDIR'};
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| 263 |
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| 264 | my $media_type = $self->{'media_type'};
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| 265 | my $media_dir = $self->{'media_dir'};
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| 266 | my $media_root = $self->{'media_root'};
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| 267 |
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| 268 | my $media_base_dir = $self->{'media_base_dir'};
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| 269 |
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| 270 | my $mp3_html;
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| 271 | my $avi_html;
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| 272 |
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| 273 | my $tape_num = "1";
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| 274 |
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| 275 | if (defined $media_type) {
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| 276 |
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| 277 | my $src_file;
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| 278 | my $src_filename;
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| 279 |
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| 280 | if ($media_type eq "video") {
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| 281 | $src_file = "$media_root\_01_$tape_num.VOB";
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| 282 | $src_filename
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| 283 | = &util::filename_cat($media_base_dir, $src_file);
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| 284 | }
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| 285 | elsif ($media_type =~ m/^audio$/) {
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| 286 | $src_file = "$media_root\_Tape$tape_num.mp3";
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| 287 | $src_filename
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| 288 | = &util::filename_cat($media_base_dir, $src_file);
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| 289 | }
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| 290 | else {
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| 291 | print STDERR "Warning: Unrecognised media type: $media_type\n";
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| 292 | }
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| 293 |
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| 294 |
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| 295 | # Embed link to allow video to stream from marked time event
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| 296 | if ($media_type eq "video") {
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| 297 |
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| 298 | # video excerpt
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| 299 |
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| 300 | $avi_html .= "<a class=\"mm\" href=\"javascript:videoplayerseek($hh,$mm,$ss)\"><img border=1 src=\"_httpvideoimages_/ivideo.gif\"></a>";
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| 301 |
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| 302 | # save 'time-stamp' as metadata???
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| 303 |
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| 304 | }
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| 305 |
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| 306 | # Do similar for audio.
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| 307 | # Obviously, pure audio needs to be handled here, but also
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| 308 | # video (and link in to its audio track)
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| 309 |
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| 310 | if ($media_type =~ m/^(video|audio)$/) {
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| 311 |
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| 312 |
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| 313 | my ($voa_root) = ($src_file =~ m/^(.*)\..*?$/);
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| 314 |
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| 315 | my $mp3_url = "javascript:audioplayerseek($hh,$mm,$ss)";
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| 316 | $mp3_html = "<a class=\"mm\" href=\"$mp3_url\"><img border=1 src=\"_httpvideoimages_/iaudio.gif\"></a>";
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| 317 |
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| 318 | # my $baseexcerpt_url = "_httpcollection_/index/assoc/{If}{[assocfilepath],[assocfilepath],[parent(Top):assocfilepath]}";
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| 319 |
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| 320 | }
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| 321 | }
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| 322 | else {
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| 323 | print STDERR "Warning: no media type defined.\n";
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| 324 | }
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| 325 |
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| 326 |
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| 327 | $only_num++;
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| 328 |
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| 329 | $self->{'time_pos'}++;
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| 330 |
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| 331 | my $table = "<table width=\"100%\" cellspacing=\"1\" cellpadding=\"0\"><tr valign=\"middle\">";
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| 332 | $table .= "<td>$avi_html</td>" if (defined $avi_html);
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| 333 | $table .= "<td>$mp3_html</td>";
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| 334 | $table .= "<td>$time_encoded</td>";
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| 335 | $table .= "</tr></table>";
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| 336 |
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| 337 | # my $line = "$front$avi_html $mp3_html $time_encoded$back";
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| 338 |
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| 339 | my $line = "$front$table$back";
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| 340 |
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| 341 | # Remember tape prefix for next call
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| 342 | $self->{'ptape'} = $tape;
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| 343 |
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| 344 | return $line;
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| 345 | }
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| 346 |
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| 347 |
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| 348 | sub hyperlink_timing_info
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| 349 | {
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| 350 | my ($self, $textref) = @_;
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| 351 |
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| 352 | my $media_type = $self->{'media_type'};
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| 353 | my $media_dir = $self->{'media_dir'};
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| 354 | my $media_root = $self->{'media_root'};
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| 355 |
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| 356 |
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| 357 |
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| 358 | ##my $front_re = "<p class=Timing>(?:<span\\s+.*?>)?";
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| 359 | my $front_re = "<p[^>]+class=\"?Timing(?:-.*?)?\"?[^>]*>(?:<span\\s+.*?>)?";
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| 360 | my $tape_re = "T\\d+:";
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| 361 | my $tt_re = "\\d\\d";
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| 362 | my $back_re = ".*?(?:<\\/span>\\s*)?(?:<\\/p>)";
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| 363 |
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| 364 | my $time_match_re = "$front_re$tt_re:$tt_re:$tt_re$back_re(?:\:$tt_re)?";
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| 365 | # my $time_sub_re = "($front_re)($tape_re)? ?($tt_re):($tt_re):($tt_re)(?:\:$tt_re)?($back_re)";
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| 366 |
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| 367 | my $tape_match_re = "$front_re($tape_re)? ?$tt_re:$tt_re:$tt_re(?:\:$tt_re)?$back_re";
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| 368 | my $tape_sub_re = "($front_re)($tt_re):($tt_re):($tt_re)(?:\:$tt_re)?($back_re)";
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| 369 |
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| 370 |
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| 371 |
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| 372 | my @time_seq = ($$textref =~ m/$time_match_re/sgi);
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| 373 |
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| 374 | print STDERR "***** got ", scalar(@time_seq), " matches\n";
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| 375 |
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| 376 | # artifically add tape information into all time indexes
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| 377 | my $extrapolate_tape = "";
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| 378 | my $num_seq = scalar(@time_seq);
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| 379 | for (my $i=0; $i<$num_seq; $i++) {
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| 380 | my ($curr_tape) = ($time_seq[$i] =~ m/$tape_match_re/sgi);
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| 381 | if (!defined $curr_tape) {
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| 382 | $time_seq[$i] =~ s/$tape_sub_re/$1$extrapolate_tape$2:$3:$4$5/sgi;
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| 383 | }
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| 384 | else {
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| 385 | if ($curr_tape ne $extrapolate_tape) {
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| 386 | $extrapolate_tape = $curr_tape;
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| 387 | }
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| 388 | }
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| 389 | }
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| 390 |
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| 391 |
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| 392 | $self->{'time_seq'} = \@time_seq;
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| 393 | $self->{'time_pos'} = 0;
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| 394 |
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| 395 | # my $front_re = "<p[^>]+class=\"?Timing(?:-.*?)?\"?[^>]*>(?:<span\\s+.*?>)?";
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| 396 |
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| 397 | $$textref =~ s/($front_re)(T\d+:)? ?(\d\d):(\d\d):(\d\d)(?:\:\d\d)?.*?((?:<\/span>)?\s*<\/p>)/$self->timed_event($1,$2,$3,$4,$5,$6)/sgie;
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| 398 |
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| 399 | ##$$textref =~ s/(<p class=Timing><span\s+.*?>)(T\d+:)? ?(\d\d):(\d\d):(\d\d)(?:\:\d\d)?.*?(<\/span>)/$self->timed_event($1,$2,$3,$4,$5,$6)/sgie;
|
|---|
| 400 |
|
|---|
| 401 |
|
|---|
| 402 | # knock out any div tags as they interfere with document broken up into sections
|
|---|
| 403 | $$textref =~ s/<\/?div.*?>//gi;
|
|---|
| 404 |
|
|---|
| 405 | # Embedded word style infomation is lost by HTMLPlug => make Question
|
|---|
| 406 | # style use HTML italics
|
|---|
| 407 |
|
|---|
| 408 | $$textref =~ s/<p class=\"Question\">(.*?)<\/p>/<p><i>$1<\/i><\/p>/gsi;
|
|---|
| 409 |
|
|---|
| 410 | }
|
|---|
| 411 |
|
|---|
| 412 |
|
|---|
| 413 |
|
|---|
| 414 | sub store_block_files
|
|---|
| 415 | {
|
|---|
| 416 | my $self =shift (@_);
|
|---|
| 417 | my ($filename_full_path, $block_hash) = @_;
|
|---|
| 418 |
|
|---|
| 419 | # Would be better if this were tied to particular HTML docs that
|
|---|
| 420 | # this plugin has processed.
|
|---|
| 421 |
|
|---|
| 422 | # For now block all files native to DVD format
|
|---|
| 423 |
|
|---|
| 424 | if (($filename_full_path =~ m/\.(IFO|BUP)$/) # block info and backup-info data
|
|---|
| 425 | || ($filename_full_path =~ m/VIDEO_TS\..*?$/) # block top-level files
|
|---|
| 426 | || ($filename_full_path =~ m/VTS_\d\d_\d\.VOB$/) #
|
|---|
| 427 | ) {
|
|---|
| 428 |
|
|---|
| 429 | $block_hash->{'file_blocks'}->{$filename_full_path} = 1;
|
|---|
| 430 | }
|
|---|
| 431 | }
|
|---|
| 432 |
|
|---|
| 433 | sub read_block {
|
|---|
| 434 | my $self = shift (@_);
|
|---|
| 435 |
|
|---|
| 436 | my ($pluginfo, $base_dir, $file, $metadata, $processor, $maxdocs, $total_count, $gli) = @_;
|
|---|
| 437 |
|
|---|
| 438 | print STDERR "***** TimedHTMLPlugin read_block\n";
|
|---|
| 439 |
|
|---|
| 440 | my $filename = $file;
|
|---|
| 441 | $filename = &util::filename_cat ($base_dir, $file) if $base_dir =~ /\w/;
|
|---|
| 442 |
|
|---|
| 443 | if (($filename =~ m/\.(IFO|BUP)$/) # block info and backup-info data
|
|---|
| 444 | || ($filename =~ m/VIDEO_TS\..*?$/) # block top-level files
|
|---|
| 445 | || ($filename =~ m/VTS_\d\d_\d\.VOB$/) #
|
|---|
| 446 | ) {
|
|---|
| 447 | $self->{'num_blocked'} ++;
|
|---|
| 448 | return (0,undef); # blocked
|
|---|
| 449 | }
|
|---|
| 450 |
|
|---|
| 451 |
|
|---|
| 452 | ##### || ($filename =~ m/VTS_\d\d_0\.VOB$/) # block menu item for this track
|
|---|
| 453 |
|
|---|
| 454 |
|
|---|
| 455 | if (defined $self->{'file_blocks'}->{$filename} && $self->{'file_blocks'}->{$filename} == 1){
|
|---|
| 456 | $self->{'num_blocked'} ++;
|
|---|
| 457 | return (0,undef); # blocked
|
|---|
| 458 | }
|
|---|
| 459 |
|
|---|
| 460 |
|
|---|
| 461 | if (defined $self->{'re_file_block'}) {
|
|---|
| 462 | my $re_file_blocks = $self->{'re_file_block'};
|
|---|
| 463 | foreach my $re_file_block (@$re_file_blocks) {
|
|---|
| 464 | ### print STDERR "**** re file block: $filename =~ m $re_file_block\n";
|
|---|
| 465 | if ($filename =~ m/$re_file_block/) {
|
|---|
| 466 | ### print STDERR "*** blocking $filename\n";
|
|---|
| 467 |
|
|---|
| 468 | $self->{'num_blocked'} ++;
|
|---|
| 469 | return (0,undef); # blocked
|
|---|
| 470 | }
|
|---|
| 471 | }
|
|---|
| 472 | }
|
|---|
| 473 |
|
|---|
| 474 |
|
|---|
| 475 | return $self->SUPER::read_block(@_);
|
|---|
| 476 |
|
|---|
| 477 | }
|
|---|
| 478 |
|
|---|
| 479 |
|
|---|
| 480 | sub read_file {
|
|---|
| 481 | my $self = shift @_;
|
|---|
| 482 | my ($filename, $encoding, $language, $textref) = @_;
|
|---|
| 483 |
|
|---|
| 484 | $only_num = 0;
|
|---|
| 485 |
|
|---|
| 486 | $self->SUPER::read_file(@_);
|
|---|
| 487 |
|
|---|
| 488 | my $metatable_store = $self->extract_metadata_table($textref);
|
|---|
| 489 | $self->{'metatable_store'} = $metatable_store;
|
|---|
| 490 |
|
|---|
| 491 | my ($root, $dirname, $suffix)
|
|---|
| 492 | = &File::Basename::fileparse($filename, "\\.[^\\.]+\$");
|
|---|
| 493 |
|
|---|
| 494 | # media defaults
|
|---|
| 495 | my $media_type = undef;
|
|---|
| 496 | my $media_dir = $root;
|
|---|
| 497 | ## my $media_root = "VTS_%02d_%02d";
|
|---|
| 498 | my $media_root = "VTS";
|
|---|
| 499 |
|
|---|
| 500 | if (defined $metatable_store->{'GS.Media'}) {
|
|---|
| 501 | $media_type = $metatable_store->{'GS.Media'};
|
|---|
| 502 | $media_type = lc($media_type);
|
|---|
| 503 | }
|
|---|
| 504 | if (defined $metatable_store->{'GS.MediaDirectory'}) {
|
|---|
| 505 | $media_dir = $metatable_store->{'GS.MediaDirectory'};
|
|---|
| 506 | }
|
|---|
| 507 | if (defined $metatable_store->{'GS.MediaRoot'}) {
|
|---|
| 508 | $media_root = $metatable_store->{'GS.MediaRoot'};
|
|---|
| 509 | }
|
|---|
| 510 |
|
|---|
| 511 | $self->{'media_type'} = $media_type;
|
|---|
| 512 | $self->{'media_dir'} = $media_dir;
|
|---|
| 513 | $self->{'media_root'} = $media_root;
|
|---|
| 514 |
|
|---|
| 515 | my $media_base_dir = &util::filename_cat($dirname,$media_dir);
|
|---|
| 516 | $self->{'media_base_dir'} = $media_base_dir;
|
|---|
| 517 |
|
|---|
| 518 | $self->{'vob_duration_info'} = &VideoConverter::vob_durations($media_base_dir,"1",$self->{'outhandle'});
|
|---|
| 519 |
|
|---|
| 520 | ## $self->hyperlink_timing_info($textref);
|
|---|
| 521 |
|
|---|
| 522 | # Convert entities to their UTF8 equivalents
|
|---|
| 523 | $$textref =~ s/&(lt|gt|amp|quot|nbsp);/&z$1;/go;
|
|---|
| 524 | $$textref =~ s/&([^;]+);/&ghtml::getcharequiv($1,1)/gseo;
|
|---|
| 525 | $$textref =~ s/&z(lt|gt|amp|quot|nbsp);/&$1;/go;
|
|---|
| 526 | }
|
|---|
| 527 |
|
|---|
| 528 |
|
|---|
| 529 | sub streamable_video
|
|---|
| 530 | {
|
|---|
| 531 | my $self = shift (@_);
|
|---|
| 532 |
|
|---|
| 533 | my ($base_dir,$filename,$doc_obj,$section) = @_;
|
|---|
| 534 |
|
|---|
| 535 | my $outhandle = $self->{'outhandle'};
|
|---|
| 536 | my $verbosity = $self->{'verbosity'};
|
|---|
| 537 |
|
|---|
| 538 | my $media_base_dir = $self->{'media_base_dir'};
|
|---|
| 539 |
|
|---|
| 540 | #---
|
|---|
| 541 | # Determine size of input video
|
|---|
| 542 |
|
|---|
| 543 | my $collect_dir = $ENV{'GSDLCOLLECTDIR'};
|
|---|
| 544 |
|
|---|
| 545 | my $media_type = $self->{'media_type'};
|
|---|
| 546 | my $media_dir = $self->{'media_dir'};
|
|---|
| 547 | my $media_root = $self->{'media_root'};
|
|---|
| 548 |
|
|---|
| 549 | my $tape_num = "1";
|
|---|
| 550 |
|
|---|
| 551 | my $src_file;
|
|---|
| 552 | my $src_filename;
|
|---|
| 553 |
|
|---|
| 554 | if ($media_type eq "video") {
|
|---|
| 555 | # $src_file = "$media_root\_01_$tape_num.VOB";
|
|---|
| 556 | $src_file = "$media_root\_01.VOB";
|
|---|
| 557 | $src_filename
|
|---|
| 558 | = &util::filename_cat($media_base_dir, $src_file);
|
|---|
| 559 | }
|
|---|
| 560 | elsif ($media_type =~ m/^audio$/) {
|
|---|
| 561 | # $src_file = "$media_root\_Tape$tape_num.mp3";
|
|---|
| 562 | $src_file = "$media_root.mp3";
|
|---|
| 563 | $src_filename
|
|---|
| 564 | = &util::filename_cat($media_base_dir, $src_file);
|
|---|
| 565 | }
|
|---|
| 566 | else {
|
|---|
| 567 | print STDERR "Warning: Unrecognised media type: $media_type\n";
|
|---|
| 568 | }
|
|---|
| 569 |
|
|---|
| 570 | if (-e $src_filename) {
|
|---|
| 571 | $self->{'file_blocks'}->{$src_filename} = 1;
|
|---|
| 572 |
|
|---|
| 573 | # my $re_file_block = $src_filename;
|
|---|
| 574 | # $re_file_block =~ s/_01_$tape_num.VOB$/_\\d+_\\d+.VOB\$/;
|
|---|
| 575 |
|
|---|
| 576 | # push(@{$self->{'re_file_block'}},$re_file_block);
|
|---|
| 577 | }
|
|---|
| 578 |
|
|---|
| 579 | my ($video_type, $video_width, $video_height, $video_duration, $video_size,
|
|---|
| 580 | $vcodec,$vfps,$atype,$afreq,$achan,$arate)
|
|---|
| 581 | = &VideoConverter::identify($src_filename, $outhandle, $verbosity);
|
|---|
| 582 |
|
|---|
| 583 | if ($vfps eq "unknown") {
|
|---|
| 584 | print $outhandle "Unknown framerate, defaulting to 25 frames per second.\n";
|
|---|
| 585 | $vfps = 25;
|
|---|
| 586 | }
|
|---|
| 587 |
|
|---|
| 588 | ### print STDERR "*** video duration = $video_duration\n";
|
|---|
| 589 | my ($dur_hour,$dur_min,$dur_sec)
|
|---|
| 590 | = ($video_duration =~ m/(\d+):(\d+):(\d+\.\d+)/);
|
|---|
| 591 | my $total_dur_secs = $dur_hour*3600 + $dur_min*60 + $dur_sec;
|
|---|
| 592 |
|
|---|
| 593 | $self->{'video-fps'} = $vfps;
|
|---|
| 594 | $self->{'num-total-frames'} = $total_dur_secs * $vfps;
|
|---|
| 595 |
|
|---|
| 596 |
|
|---|
| 597 | # shorten duration prcessed for experimentation purposes
|
|---|
| 598 | my $exp_duration = undef;
|
|---|
| 599 |
|
|---|
| 600 | my $video_excerpt_duration = $self->{'video_excerpt_duration'};
|
|---|
| 601 |
|
|---|
| 602 | print STDERR "**** video/audio duration (secs) = $total_dur_secs\n";
|
|---|
| 603 |
|
|---|
| 604 |
|
|---|
| 605 | if ((defined $video_excerpt_duration) && ($video_excerpt_duration ne "")) {
|
|---|
| 606 | $exp_duration = $video_excerpt_duration;
|
|---|
| 607 | my ($hh,$mm,$ss,$ms) = ($exp_duration =~ m/^(\d\d):(\d\d):(\d\d)\.?(\d\d)?/);
|
|---|
| 608 | my $excerpt_dur_in_secs = $hh * 3600 + $mm * 60 + $ss;
|
|---|
| 609 |
|
|---|
| 610 | if ($excerpt_dur_in_secs < $total_dur_secs) {
|
|---|
| 611 | $self->{'num-total-frames'} = $excerpt_dur_in_secs * $vfps; # override calculation for full length duration
|
|---|
| 612 | }
|
|---|
| 613 | else {
|
|---|
| 614 | # clip is already shorter than requested video excerpt duration
|
|---|
| 615 | # set exp_duration back to undefined
|
|---|
| 616 | $exp_duration = undef;
|
|---|
| 617 | }
|
|---|
| 618 | }
|
|---|
| 619 |
|
|---|
| 620 | print $outhandle "TimedHTMLPlug: Preparing video files associated with $filename for HTMLPlug\n";
|
|---|
| 621 |
|
|---|
| 622 | if (defined $exp_duration)
|
|---|
| 623 | {
|
|---|
| 624 | print $outhandle "Only encoding first $exp_duration of video.\n";
|
|---|
| 625 | $self->{'exp_duration'} = $exp_duration;
|
|---|
| 626 | }
|
|---|
| 627 |
|
|---|
| 628 |
|
|---|
| 629 | $self->init_cache_for_file($src_filename);
|
|---|
| 630 |
|
|---|
| 631 | # TimedHTML streaming isn't as complicated as VideoPlugin or AudioPlugin
|
|---|
| 632 | # => src file is never converted beforehand to another type
|
|---|
| 633 |
|
|---|
| 634 | my $convertto_regenerated = 0;
|
|---|
| 635 | my $originalfilename = $src_filename;
|
|---|
| 636 |
|
|---|
| 637 | my $streamable_regenerated = 0;
|
|---|
| 638 |
|
|---|
| 639 | if ($media_type eq "audio") {
|
|---|
| 640 | $streamable_regenerated =
|
|---|
| 641 | $self->enable_audio_streaming($doc_obj,
|
|---|
| 642 | $originalfilename,$src_filename,
|
|---|
| 643 | $convertto_regenerated);
|
|---|
| 644 | }
|
|---|
| 645 | else {
|
|---|
| 646 | # generate streamable video and audio
|
|---|
| 647 | $streamable_regenerated =
|
|---|
| 648 | $self->enable_full_streaming($doc_obj,
|
|---|
| 649 | $originalfilename,$src_filename,
|
|---|
| 650 | $convertto_regenerated,
|
|---|
| 651 | $video_width,$video_height);
|
|---|
| 652 | }
|
|---|
| 653 |
|
|---|
| 654 | $self->{'streamable_regenerated'} = $streamable_regenerated;
|
|---|
| 655 |
|
|---|
| 656 | my $base_url = "_httpstreamserverprefix_/collect/[collection]/index/assoc/{If}{[assocfilepath],[assocfilepath],[parent(Top):assocfilepath]}/";
|
|---|
| 657 |
|
|---|
| 658 | $doc_obj->add_metadata ($section, "baseurl",$base_url);
|
|---|
| 659 |
|
|---|
| 660 | return;
|
|---|
| 661 |
|
|---|
| 662 | #*********************
|
|---|
| 663 | #---
|
|---|
| 664 | # Generate the Flash FLV format for streaming purposes
|
|---|
| 665 |
|
|---|
| 666 | my $streaming_bitrate = "256k"; # used to be 192k
|
|---|
| 667 | my $streaming_size = "360"; # used to be 352 (CIF?)
|
|---|
| 668 | my $streaming_achan = "1";
|
|---|
| 669 | my $streaming_arate = "44100";
|
|---|
| 670 | my $streaming_quality = "high";
|
|---|
| 671 |
|
|---|
| 672 | #---
|
|---|
| 673 | # Convert video to flash
|
|---|
| 674 | #---
|
|---|
| 675 | my ($stream_cmd,$oflash_filename,$oflash_file)
|
|---|
| 676 | = $self->stream_cmd($src_filename,
|
|---|
| 677 | $video_width,$video_height,
|
|---|
| 678 | $streaming_quality, $streaming_bitrate, $streaming_size,
|
|---|
| 679 | $streaming_achan, $streaming_arate);
|
|---|
| 680 |
|
|---|
| 681 | my $streamable_options = { @{$self->{'ffmpeg_monitor'}},
|
|---|
| 682 | 'message_prefix' => "Stream",
|
|---|
| 683 | 'message' => "Generating streamable video: $oflash_file" };
|
|---|
| 684 |
|
|---|
| 685 | my ($streamable_regenerated2,$streamable_result,$streamable_had_error)
|
|---|
| 686 | = $self->run_cached_general_cmd($stream_cmd,$oflash_filename,$streamable_options);
|
|---|
| 687 |
|
|---|
| 688 | $self->{'streamable_regenerated2'} = $streamable_regenerated2;
|
|---|
| 689 |
|
|---|
| 690 | if (!$streamable_had_error) {
|
|---|
| 691 | #---
|
|---|
| 692 | # Make video seekable
|
|---|
| 693 | #---
|
|---|
| 694 | my ($streamseekable_cmd,$ostreamseekable_filename) = $self->streamseekable_cmd($oflash_filename);
|
|---|
| 695 |
|
|---|
| 696 | my $streamseekable_options = { @{$self->{'flvtool2_monitor'}},
|
|---|
| 697 | 'message_prefix' => "Stream Seekable",
|
|---|
| 698 | 'message' => "Reprocessing video stream to be seekable by timeline: $oflash_file" };
|
|---|
| 699 |
|
|---|
| 700 | if ($streamable_regenerated2) {
|
|---|
| 701 | $self->run_general_cmd($streamseekable_cmd,$streamseekable_options);
|
|---|
| 702 | }
|
|---|
| 703 |
|
|---|
| 704 | my $streamable_url = $oflash_file;
|
|---|
| 705 | ## $streamable_url =~ s/ /%20/g;
|
|---|
| 706 |
|
|---|
| 707 | $doc_obj->add_metadata ($section, "streamablevideo", $streamable_url);
|
|---|
| 708 | $doc_obj->associate_file($oflash_filename,$oflash_file,"video/flash",
|
|---|
| 709 | $section);
|
|---|
| 710 | }
|
|---|
| 711 |
|
|---|
| 712 | #
|
|---|
| 713 | # FlowPlayer.swf height+22 pixels
|
|---|
| 714 | # FlowPlayerBlack.swf height+16 pixels
|
|---|
| 715 | # FlowPlayerThermo.swf height+16 pixels
|
|---|
| 716 | # FlowPlayerWhite.swf height+26 pixels
|
|---|
| 717 | if ($media_type eq "audio") {
|
|---|
| 718 | $doc_obj->add_metadata ($section, "audioflashwidth", $video_width);
|
|---|
| 719 | $doc_obj->add_metadata ($section, "audioflashheight", 22 + 100);
|
|---|
| 720 | }
|
|---|
| 721 | else {
|
|---|
| 722 | $doc_obj->add_metadata ($section, "flashwidth", $video_width);
|
|---|
| 723 | $doc_obj->add_metadata ($section, "flashheight", $video_height + 22 + 100);
|
|---|
| 724 | }
|
|---|
| 725 |
|
|---|
| 726 |
|
|---|
| 727 | my $base_url2 = "_httpstreamserverprefix_/collect/[collection]/index/assoc/{If}{[assocfilepath],[assocfilepath],[parent(Top):assocfilepath]}/";
|
|---|
| 728 |
|
|---|
| 729 | $doc_obj->add_metadata ($section, "baseurl",$base_url2);
|
|---|
| 730 |
|
|---|
| 731 | $self->{'oflash_file'} = $oflash_file;
|
|---|
| 732 | $self->{'oflash_filename'} = $oflash_filename;
|
|---|
| 733 |
|
|---|
| 734 | }
|
|---|
| 735 |
|
|---|
| 736 |
|
|---|
| 737 |
|
|---|
| 738 | sub add_cuepoints
|
|---|
| 739 | {
|
|---|
| 740 | my ($self) = shift @_;
|
|---|
| 741 | my ($doc_obj) = @_;
|
|---|
| 742 |
|
|---|
| 743 | my $section = $doc_obj->get_top_section();
|
|---|
| 744 | my $chapters = $doc_obj->get_children($section);
|
|---|
| 745 |
|
|---|
| 746 |
|
|---|
| 747 | # open file
|
|---|
| 748 | my $output_dir = $self->{'cached_dir'};
|
|---|
| 749 | my $cue_filename = &util::filename_cat($output_dir,"on_cue.xml");
|
|---|
| 750 |
|
|---|
| 751 | open(CUEOUT,">$cue_filename")
|
|---|
| 752 | || die "Unable to open $cue_filename: $!\n";
|
|---|
| 753 | print CUEOUT "<tags>\n";
|
|---|
| 754 |
|
|---|
| 755 |
|
|---|
| 756 | my $cc = 0;
|
|---|
| 757 |
|
|---|
| 758 | foreach my $chap (@$chapters)
|
|---|
| 759 | {
|
|---|
| 760 | $cc++;
|
|---|
| 761 |
|
|---|
| 762 | my $chap_text = $doc_obj->get_text($chap);
|
|---|
| 763 |
|
|---|
| 764 | my @cuepoints
|
|---|
| 765 | = ($chap_text =~ m/<p class=Timing><span\s+.*?>(?:T\d+:)? ?(\d\d:\d\d:\d\d)(?:\:\d\d)?/gsi);
|
|---|
| 766 |
|
|---|
| 767 | my $count = 0;
|
|---|
| 768 |
|
|---|
| 769 | foreach my $cuepoint (@cuepoints)
|
|---|
| 770 | {
|
|---|
| 771 | my ($hh,$mm,$ss) = ($cuepoint =~ m/(\d\d):(\d\d):(\d\d)/);
|
|---|
| 772 |
|
|---|
| 773 | my $cuept_insecs = $self->hms_to_secs($hh,$mm,$ss);
|
|---|
| 774 |
|
|---|
| 775 | if ($cuept_insecs < 2) {
|
|---|
| 776 | $cuept_insecs += 2;
|
|---|
| 777 | }
|
|---|
| 778 | my $cuept_inmsecs = 1000 * $cuept_insecs;
|
|---|
| 779 |
|
|---|
| 780 | $doc_obj->add_metadata($section,"cuepoint",$cuept_inmsecs);
|
|---|
| 781 | my $chap_title = $doc_obj->get_metadata_element($chap,"Title");
|
|---|
| 782 |
|
|---|
| 783 | # Navigation point (used in seeking)
|
|---|
| 784 | # print CUEOUT " <metatag event=\"onCuePoint\" overwrite=\"true\">\n";
|
|---|
| 785 | # print CUEOUT " <name>$chap_title</name>\n";
|
|---|
| 786 | # print CUEOUT " <timestamp>$cuept_inmsecs</timestamp>\n";
|
|---|
| 787 | # print CUEOUT " <parameters>\n";
|
|---|
| 788 | # print CUEOUT " <thumb>dummy</thumb>\n";
|
|---|
| 789 | # print CUEOUT " <sectionnum>$chap</sectionnum>\n";
|
|---|
| 790 | # print CUEOUT " <subsectionnum>$count</subsectionnum>\n";
|
|---|
| 791 | # print CUEOUT " <cuept>$cuept_inmsecs</cuept>\n";
|
|---|
| 792 | # print CUEOUT " </parameters>\n";
|
|---|
| 793 | # print CUEOUT " <type>navigation</type>\n";
|
|---|
| 794 | # print CUEOUT " </metatag>\n";
|
|---|
| 795 |
|
|---|
| 796 |
|
|---|
| 797 | # print CUEOUT " <metatag event=\"onCuePoint\" overwrite=\"true\">\n";
|
|---|
| 798 | # print CUEOUT " <name>$chap_title</name>\n";
|
|---|
| 799 | # print CUEOUT " <timestamp>$cuept_inmsecs</timestamp>\n";
|
|---|
| 800 | # print CUEOUT " <parameters>\n";
|
|---|
| 801 | # print CUEOUT " <thumb>foo.jpg</thumb>\n";
|
|---|
| 802 | # print CUEOUT " </parameters>\n";
|
|---|
| 803 | # print CUEOUT " <type>navigation</type>\n";
|
|---|
| 804 | # print CUEOUT " </metatag>\n";
|
|---|
| 805 |
|
|---|
| 806 | if ($count==0)
|
|---|
| 807 | {
|
|---|
| 808 | # Event (used to hook in to javascipt callback)
|
|---|
| 809 | # Only do for the first in each chapter
|
|---|
| 810 |
|
|---|
| 811 | print CUEOUT " <metatag event=\"onCuePoint\" overwrite=\"true\">\n";
|
|---|
| 812 | ## print CUEOUT " <name>Test $cc</name>\n";
|
|---|
| 813 | print CUEOUT " <name>$chap_title</name>\n";
|
|---|
| 814 | print CUEOUT " <timestamp>$cuept_inmsecs</timestamp>\n";
|
|---|
| 815 | print CUEOUT " <parameters>\n";
|
|---|
| 816 | print CUEOUT " <cuept>$cuept_inmsecs</cuept>\n";
|
|---|
| 817 | print CUEOUT " <sectionnum>$chap</sectionnum>\n";
|
|---|
| 818 | print CUEOUT " </parameters>\n";
|
|---|
| 819 | print CUEOUT " <type>event</type>\n";
|
|---|
| 820 | ## print CUEOUT " <type>actionscript</type>\n";
|
|---|
| 821 | print CUEOUT " </metatag>\n";
|
|---|
| 822 | }
|
|---|
| 823 |
|
|---|
| 824 | $count++;
|
|---|
| 825 | }
|
|---|
| 826 | }
|
|---|
| 827 |
|
|---|
| 828 |
|
|---|
| 829 | print CUEOUT "</tags>\n";
|
|---|
| 830 | close(CUEOUT);
|
|---|
| 831 |
|
|---|
| 832 | #### my $videoconvert = $self->{'videoconvert'};
|
|---|
| 833 | my $oflash_filename = $self->{'oflash_filename'};
|
|---|
| 834 | my $oflash_file = $self->{'oflash_file'};
|
|---|
| 835 |
|
|---|
| 836 | my ($streamcuepts_cmd,$ostreamcuepts_filename) = $self->streamcuepts_cmd($oflash_filename);
|
|---|
| 837 |
|
|---|
| 838 | my $verbosity = $self->{'verbosity'};
|
|---|
| 839 | my $outhandle = $self->{'outhandle'};
|
|---|
| 840 |
|
|---|
| 841 | my $streamcuepts_options = { @{$self->{'flvtool2_monitor'}},
|
|---|
| 842 | 'message_prefix' => "Stream Cue Points",
|
|---|
| 843 | 'message' => "Reprocessing video stream to add cuepoints on timeline: $oflash_file" };
|
|---|
| 844 |
|
|---|
| 845 | my $streamable_regenerated2 = $self->{'streamable_regenerated'};
|
|---|
| 846 |
|
|---|
| 847 | if ($streamable_regenerated2) {
|
|---|
| 848 | $self->run_general_cmd($streamcuepts_cmd,$streamcuepts_options);
|
|---|
| 849 | }
|
|---|
| 850 |
|
|---|
| 851 |
|
|---|
| 852 |
|
|---|
| 853 | }
|
|---|
| 854 |
|
|---|
| 855 |
|
|---|
| 856 |
|
|---|
| 857 | sub process {
|
|---|
| 858 | my $self = shift (@_);
|
|---|
| 859 | my ($textref, $pluginfo, $base_dir, $file, $metadata, $doc_obj, $gli) = @_;
|
|---|
| 860 |
|
|---|
| 861 | my $filename = $file;
|
|---|
| 862 | $filename = &util::filename_cat ($base_dir, $file) if $base_dir =~ /\w/;
|
|---|
| 863 |
|
|---|
| 864 | my $top_section = $doc_obj->get_top_section();
|
|---|
| 865 |
|
|---|
| 866 | $self->streamable_video($base_dir,$filename,$doc_obj,$top_section);
|
|---|
| 867 |
|
|---|
| 868 | $self->hyperlink_timing_info($textref);
|
|---|
| 869 |
|
|---|
| 870 | foreach my $mp3_excerpt (@{$self->{'mp3_excerpts'}}) {
|
|---|
| 871 | my $omp3_file = $mp3_excerpt->{'omp3_file'};
|
|---|
| 872 | my $omp3_filename = $mp3_excerpt->{'omp3_filename'};
|
|---|
| 873 |
|
|---|
| 874 | $doc_obj->associate_file($omp3_filename,$omp3_file,"audio/mp3",
|
|---|
| 875 | $top_section);
|
|---|
| 876 | }
|
|---|
| 877 | $self->{'mp3_excerpts'} = undef;
|
|---|
| 878 |
|
|---|
| 879 | my $metatable_store = $self->{'metatable_store'};
|
|---|
| 880 | foreach my $metaname (keys %$metatable_store) {
|
|---|
| 881 | my $metadata = $metatable_store->{$metaname};
|
|---|
| 882 | $doc_obj->add_metadata($top_section,$metaname,$metadata);
|
|---|
| 883 | }
|
|---|
| 884 | $self->{'metatable_store'} = undef;
|
|---|
| 885 |
|
|---|
| 886 | my $ret_val = $self->SUPER::process(@_);
|
|---|
| 887 |
|
|---|
| 888 | $self->add_cuepoints($doc_obj);
|
|---|
| 889 |
|
|---|
| 890 |
|
|---|
| 891 | return $ret_val;
|
|---|
| 892 |
|
|---|
| 893 | }
|
|---|
| 894 |
|
|---|
| 895 |
|
|---|
| 896 |
|
|---|
| 897 | sub replace_images {
|
|---|
| 898 | my $self = shift (@_);
|
|---|
| 899 | my ($front, $link, $back, $base_dir,
|
|---|
| 900 | $file, $doc_obj, $section) = @_;
|
|---|
| 901 |
|
|---|
| 902 | if ($link =~ m/^"?_.*?_"?\//) {
|
|---|
| 903 | # variety of greenstone macro, so let through unchanged
|
|---|
| 904 | return $front . $link . $back ;
|
|---|
| 905 | }
|
|---|
| 906 |
|
|---|
| 907 | return $self->SUPER::replace_images(@_);
|
|---|
| 908 | }
|
|---|
| 909 |
|
|---|
| 910 |
|
|---|
| 911 |
|
|---|
| 912 |
|
|---|
| 913 |
|
|---|
| 914 | sub replace_href_links {
|
|---|
| 915 | my $self = shift (@_);
|
|---|
| 916 | my ($front, $link, $back, $base_dir, $file, $doc_obj, $section) = @_;
|
|---|
| 917 |
|
|---|
| 918 |
|
|---|
| 919 | if ($link =~ m/^"?_.*?_"?/) {
|
|---|
| 920 | # variety of greenstone macro, so let through unchanged
|
|---|
| 921 | return $front . $link . $back ;
|
|---|
| 922 | }
|
|---|
| 923 |
|
|---|
| 924 | return $self->SUPER::replace_href_links(@_);
|
|---|
| 925 | }
|
|---|
| 926 |
|
|---|
| 927 | 1;
|
|---|
