| 1 | ########################################################################
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| 2 | #
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| 3 | # VideoPlug.pm -- plugin for processing video largely based on ImagePlug
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| 4 | # A component of the Greenstone digital library software
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| 5 | # from the New Zealand Digital Library Project at the
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| 6 | # University of Waikato, New Zealand.
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| 7 | #
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| 8 | # Copyright (C) 1999 New Zealand Digital Library Project
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| 9 | #
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| 10 | # This program is free software; you can redistribute it and/or modify
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| 11 | # it under the terms of the GNU General Public License as published by
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| 12 | # the Free Software Foundation; either version 2 of the License, or
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| 13 | # (at your option) any later version.
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| 14 | #
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| 15 | # This program is distributed in the hope that it will be useful,
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| 16 | # but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 17 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 18 | # GNU General Public License for more details.
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| 19 | #
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| 20 | # You should have received a copy of the GNU General Public License
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| 21 | # along with this program; if not, write to the Free Software
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| 22 | # Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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| 23 | #
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| 24 | ###########################################################################
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| 25 |
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| 26 | package VideoPlugin;
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| 27 |
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| 28 | use strict;
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| 29 | no strict 'refs'; # allow filehandles to be variables and viceversa
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| 30 |
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| 31 | use videoconvert;
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| 32 | use XMLParser;
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| 33 | use gsprintf;
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| 34 |
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| 35 | use BasePlugin;
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| 36 |
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| 37 | sub BEGIN {
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| 38 | @VideoPlugin::ISA = ('BasePlugin');
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| 39 |
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| 40 | if (!defined $ENV{'GEXTVIDEO'}) {
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| 41 | print STDERR "Warning: Greenstone Video extension not detected.\n";
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| 42 | }
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| 43 |
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| 44 | }
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| 45 |
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| 46 | my $arguments =
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| 47 | [ { 'name' => "process_exp",
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| 48 | 'desc' => "{BasePlugin.process_exp}",
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| 49 | 'type' => "regexp",
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| 50 | 'deft' => &get_default_process_exp(),
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| 51 | 'reqd' => "no" },
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| 52 | { 'name' => "noscaleup",
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| 53 | 'desc' => "{VideoPlug.noscaleup}",
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| 54 | 'type' => "flag",
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| 55 | 'reqd' => "no" },
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| 56 | { 'name' => "use_ascii_only_filenames",
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| 57 | 'desc' => "{VideoPlug.use_ascii_only_filenames}",
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| 58 | 'type' => "flag",
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| 59 | 'reqd' => "no" },
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| 60 | { 'name' => "video_excerpt_duration",
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| 61 | 'desc' => "{VideoPlug.video_excerpt_duration}",
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| 62 | 'type' => "string",
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| 63 | 'deft' => "",
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| 64 | 'reqd' => "no" },
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| 65 | { 'name' => "extractthumbnail",
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| 66 | 'desc' => "{VideoPlug.extractthumbnail}",
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| 67 | 'type' => "flag",
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| 68 | 'deft' => "0",
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| 69 | 'reqd' => "no" },
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| 70 | { 'name' => "thumbnailsize",
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| 71 | 'desc' => "{VideoPlug.thumbnailsize}",
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| 72 | 'type' => "int",
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| 73 | 'deft' => "100",
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| 74 | 'range' => "1,",
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| 75 | 'reqd' => "no" },
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| 76 | { 'name' => "thumbnailtype",
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| 77 | 'desc' => "{VideoPlug.thumbnailtype}",
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| 78 | 'type' => "string",
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| 79 | 'deft' => "jpeg",
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| 80 | 'reqd' => "no" },
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| 81 | { 'name' => "extractscreenview",
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| 82 | 'desc' => "{VideoPlug.extractscreenview}",
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| 83 | 'type' => "flag",
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| 84 | 'deft' => "0",
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| 85 | 'reqd' => "no" },
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| 86 | { 'name' => "screenviewsize",
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| 87 | 'desc' => "{VideoPlug.screenviewsize}",
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| 88 | 'type' => "int",
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| 89 | 'deft' => "0",
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| 90 | 'range' => "1,",
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| 91 | 'reqd' => "no" },
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| 92 | { 'name' => "screenviewtype",
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| 93 | 'desc' => "{VideoPlug.screenviewtype}",
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| 94 | 'type' => "string",
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| 95 | 'deft' => "jpg",
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| 96 | 'reqd' => "no" },
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| 97 | { 'name' => "converttotype",
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| 98 | 'desc' => "{VideoPlug.converttotype}",
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| 99 | 'type' => "string",
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| 100 | 'deft' => "",
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| 101 | 'reqd' => "no" },
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| 102 | { 'name' => "converttosize",
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| 103 | 'desc' => "{VideoPlug.converttosize}",
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| 104 | 'type' => "int",
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| 105 | 'deft' => "",
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| 106 | ## 'deft' => "352",
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| 107 | 'reqd' => "no" },
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| 108 | { 'name' => "converttobitrate",
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| 109 | 'desc' => "{VideoPlug.converttobitrate}",
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| 110 | 'type' => "string",
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| 111 | 'deft' => "200k",
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| 112 | 'reqd' => "no" },
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| 113 | { 'name' => "extractkeyframes",
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| 114 | 'desc' => "{VideoPlug.extractkeyframes}",
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| 115 | 'type' => "flag",
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| 116 | 'deft' => "0",
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| 117 | 'reqd' => "no" },
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| 118 | { 'name' => "enablestreaming",
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| 119 | 'desc' => "{VideoPlug.enablestreaming}",
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| 120 | 'type' => "flag",
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| 121 | 'deft' => "1",
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| 122 | 'reqd' => "no" },
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| 123 | { 'name' => "streamingsize",
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| 124 | 'desc' => "{VideoPlug.streamingsize}",
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| 125 | 'type' => "int",
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| 126 | 'deft' => "352",
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| 127 | 'reqd' => "no" },
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| 128 | { 'name' => "streamingbitrate",
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| 129 | 'desc' => "{VideoPlug.streamingbitrate}",
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| 130 | 'type' => "string",
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| 131 | 'deft' => "200k",
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| 132 | 'reqd' => "no" },
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| 133 | { 'name' => "minimumsize",
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| 134 | 'desc' => "{VideoPlug.minimumsize}",
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| 135 | 'type' => "int",
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| 136 | 'deft' => "100",
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| 137 | 'range' => "1,",
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| 138 | 'reqd' => "no" } ];
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| 139 |
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| 140 | my $options = { 'name' => "VideoPlug",
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| 141 | 'desc' => "{VideoPlug.desc}",
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| 142 | 'abstract' => "no",
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| 143 | 'inherits' => "yes",
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| 144 | 'args' => $arguments };
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| 145 |
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| 146 |
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| 147 | my ($self);
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| 148 |
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| 149 | sub new {
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| 150 | my ($class) = shift (@_);
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| 151 | my ($pluginlist,$inputargs,$hashArgOptLists) = @_;
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| 152 | push(@$pluginlist, $class);
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| 153 |
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| 154 | push(@{$hashArgOptLists->{"ArgList"}},@{$arguments});
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| 155 | push(@{$hashArgOptLists->{"OptList"}},$options);
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| 156 |
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| 157 | $self = new BasePlugin($pluginlist, $inputargs, $hashArgOptLists);
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| 158 |
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| 159 | # Check that ffmpeg is installed and available on the path (except for Windows 95/98)
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| 160 | # This test is "inherited" from ImagePlugin where ImageMagick support
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| 161 | # for building cannot be used on these two versions of Windows as they
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| 162 | # do not have enough flexablity in the use of stdout and stderr to
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| 163 | # support how our code works. It seems reasonable to assume the
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| 164 | # same is true for VideoPlugin work using ffmpeg.
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| 165 |
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| 166 | if (($ENV{'GSDLOS'} ne "windows" || Win32::IsWinNT())) {
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| 167 |
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| 168 | my $result = `ffmpeg -h 2>&1`;
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| 169 |
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| 170 | if (!defined $result || $result !~ m/^FFmpeg version/) {
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| 171 | $self->{'ffmpeg_not_installed'} = 1;
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| 172 | print STDERR $result;
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| 173 | }
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| 174 | }
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| 175 |
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| 176 |
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| 177 | # create XML::Parser object for parsing metadata.xml files
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| 178 | my $parser;
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| 179 | if ($]<5.008) {
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| 180 | # Perl 5.6
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| 181 | $parser = new XML::Parser('Style' => 'Stream',
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| 182 | 'Handlers' => {'Char' => \&Char,
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| 183 | 'Doctype' => \&Doctype
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| 184 | });
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| 185 | }
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| 186 | else {
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| 187 | # Perl 5.8
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| 188 | $parser = new XML::Parser('Style' => 'Stream',
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| 189 | 'ProtocolEncoding' => 'ISO-8859-1',
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| 190 | 'Handlers' => {'Char' => \&Char,
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| 191 | 'Doctype' => \&Doctype
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| 192 | });
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| 193 | }
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| 194 |
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| 195 | $self->{'parser'} = $parser;
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| 196 |
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| 197 |
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| 198 | return bless $self, $class;
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| 199 | }
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| 200 |
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| 201 |
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| 202 | sub init {
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| 203 | my $self = shift (@_);
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| 204 | my ($verbosity, $outhandle, $failhandle) = @_;
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| 205 |
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| 206 | $self->SUPER::init(@_);
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| 207 | ## $self->ImageConverter::init(); # ****** VideoConverter::init ??
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| 208 | }
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| 209 |
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| 210 |
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| 211 | sub get_default_process_exp {
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| 212 | my $self = shift (@_);
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| 213 |
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| 214 | return q^\.(?i)(mpe?g|flv|qt|vob|avi)$^;
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| 215 | }
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| 216 |
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| 217 | # this makes no sense for image
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| 218 | sub block_cover_image
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| 219 | {
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| 220 | my $self =shift (@_);
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| 221 | my ($filename) = @_;
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| 222 |
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| 223 | return;
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| 224 | }
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| 225 |
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| 226 |
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| 227 |
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| 228 |
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| 229 | # Create the keyframes, thumbnail and screenview images, and discover
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| 230 | # the Video's size, width, and height using the ffmpeg utility.
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| 231 |
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| 232 | sub run_convert {
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| 233 | my $self = shift (@_);
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| 234 | my $base_dir = shift (@_);
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| 235 | my $filename = shift (@_); # filename with full path
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| 236 | my $file = shift (@_); # filename without path
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| 237 | my $doc_obj = shift (@_);
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| 238 |
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| 239 | my $section = $doc_obj->get_top_section();
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| 240 |
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| 241 | my $verbosity = $self->{'verbosity'};
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| 242 | my $outhandle = $self->{'outhandle'};
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| 243 |
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| 244 | # check the filename is okay
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| 245 | return 0 if ($file eq "" || $filename eq "");
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| 246 |
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| 247 | my $minimumsize = $self->{'minimumsize'};
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| 248 | if (defined $minimumsize && (-s $filename < $minimumsize)) {
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| 249 | print $outhandle "VideoPlug: \"$filename\" too small, skipping\n"
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| 250 | if ($verbosity > 1);
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| 251 | }
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| 252 |
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| 253 | my ($video_type, $video_width, $video_height, $video_duration, $video_size,
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| 254 | $vcodec,$vfps,$atype,$afreq,$achan,$arate)
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| 255 | = &videoconvert::identify($filename, $outhandle, $verbosity);
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| 256 |
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| 257 | if ($vfps eq "unknown") {
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| 258 | print $outhandle "Unknown framerate, defaulting to 25 frames per second.\n";
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| 259 | $vfps = 25;
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| 260 | }
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| 261 |
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| 262 | my ($dur_hour,$dur_min,$dur_sec)
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| 263 | = ($video_duration =~ m/(\d+):(\d+):(\d+\.\d+)/);
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| 264 | my $total_dur_secs = $dur_hour*3600 + $dur_min*60 + $dur_sec;
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| 265 |
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| 266 | $self->{'video-fps'} = $vfps;
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| 267 | $self->{'num-total-frames'} = $total_dur_secs * $vfps;
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| 268 |
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| 269 | # Convert the video to a new type (if required).
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| 270 | my $converttotype = $self->{'converttotype'};
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| 271 | my $converttosize = $self->{'converttosize'};
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| 272 |
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| 273 | # shorten duration prcessed for experimentation purposes
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| 274 | my $exp_duration = undef;
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| 275 |
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| 276 | my $video_excerpt_duration = $self->{'video_excerpt_duration'};
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| 277 |
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| 278 | if ((defined $video_excerpt_duration) && ($video_excerpt_duration ne "")) {
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| 279 | $exp_duration = $video_excerpt_duration;
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| 280 | my ($hh,$mm,$ss,$ms) = ($exp_duration =~ m/^(\d\d):(\d\d):(\d\d)\.?(\d\d)?/);
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| 281 | my $excerpt_dur_in_secs = $hh * 3600 + $mm * 60 + $ss;
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| 282 |
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| 283 | if ($excerpt_dur_in_secs < $total_dur_secs) {
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| 284 | $self->{'num-total-frames'} = $excerpt_dur_in_secs * $vfps; # override calculation for full length duration
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| 285 | }
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| 286 | else {
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| 287 | # clip is already shorter than requested video excerpt duration
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| 288 | # set exp_duration back to undefined
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| 289 | $exp_duration = undef;
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| 290 | }
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| 291 | }
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| 292 |
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| 293 |
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| 294 | if (defined $exp_duration)
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| 295 | {
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| 296 | print $outhandle "Only encoding first $exp_duration of video.\n";
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| 297 | $self->{'exp_duration'} = $exp_duration;
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| 298 | }
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| 299 |
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| 300 | my $ascii_only_filenames = $self->{'use_ascii_only_filenames'};
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| 301 | my $videoconvert
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| 302 | = new videoconvert($base_dir,$filename,$verbosity,$outhandle,$exp_duration,$ascii_only_filenames);
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| 303 | $self->{'videoconvert'} = $videoconvert;
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| 304 |
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| 305 | my $originalfilename = undef;
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| 306 | my $type = "unknown";
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| 307 |
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| 308 | my $output_dir = $videoconvert->{'cached_dir'};
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| 309 | my $ivideo_root = $videoconvert->{'file_root'};
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| 310 |
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| 311 | my $convertto_regenerated = 0;
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| 312 | if (($converttotype ne "" && $filename =~ m/$converttotype$/i) ||
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| 313 | (($converttosize ne "" && $converttosize ne $video_width) || ($converttosize ne "" && $converttosize ne $video_height))) {
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| 314 | if ($converttotype eq "") {
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| 315 | # in this block because the video width x height different to original
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| 316 | # => set (for this call to run_convert only) converttotype
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| 317 | # to input file extension
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| 318 | ($converttotype) = ($filename =~ m/\.(.*?)$/);
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| 319 | }
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| 320 |
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| 321 | $originalfilename = $filename;
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| 322 |
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| 323 | $file = "$ivideo_root.$converttotype";
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| 324 | $filename = &util::filename_cat($output_dir,$file);
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| 325 |
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| 326 | my $s_opt = $videoconvert->optional_frame_scale($converttosize,$video_width,$video_height);
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| 327 | my $exp_duration = $self->{'exp_duration'};
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| 328 | my $t_opt = (defined $exp_duration) ? "-t $exp_duration" : "";
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| 329 |
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| 330 | my $main_opts = "-y $t_opt $s_opt";
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| 331 |
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| 332 |
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| 333 | my $convertto_command = "ffmpeg $main_opts -i \"$originalfilename\"";
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| 334 | $convertto_command .= " -ar 22050" if ($converttotype eq "flv");
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| 335 | $convertto_command .= " -y \"$filename\"";
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| 336 |
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| 337 | my $convertto_result;
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| 338 | my $convertto_error;
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| 339 |
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| 340 | my $convertto_options = { @{$videoconvert->{'ffmpeg_monitor'}},
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| 341 | 'message_prefix' => "Convert to",
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| 342 | 'message' => "Converting video to $converttotype" };
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| 343 |
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| 344 | ($convertto_regenerated,$convertto_result,$convertto_error)
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| 345 | = $videoconvert->run_cached_general_cmd($convertto_command,$filename,$convertto_options);
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| 346 |
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| 347 | $type = $converttotype;
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| 348 | }
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| 349 |
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| 350 |
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| 351 | # Add the video metadata
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| 352 |
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| 353 | my $file_unicode = pack("U0C*", map { ord($_) } split(//,$file)); # force explicitly to unicode
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| 354 |
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| 355 | $file_unicode =~ s/\x{2018}|\x{2019}|\x{201C}|\x{201D}//g; # remove smart quotes as cause problem in URL for video server
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| 356 | $file_unicode =~ s/\x{2013}/\-/g; # change en-dash to '-' as again causes problems for video server
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| 357 |
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| 358 | ## print STDERR "**** file metadata = ", &gsprintf::debug_unicode_string($file_unicode), "\n";
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| 359 |
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| 360 |
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| 361 | # split filename on char if specified
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| 362 | if ($file_unicode =~ m/\-/) {
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| 363 |
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| 364 | my @file_split = split(/\s*\-\s*/,$file_unicode);
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| 365 | my $creator = shift @file_split;
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| 366 | my $title = shift @file_split;
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| 367 |
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| 368 | $title =~ s/\..*?$//;
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| 369 | $title =~ s/^(.)/\u$1/;
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| 370 |
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| 371 | $doc_obj->add_utf8_metadata($section,"Title",$title);
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| 372 |
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| 373 | my @creator_split = split(/\s+and\s+/,$creator);
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| 374 | foreach my $c (@creator_split) {
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| 375 | $doc_obj->add_utf8_metadata($section,"Creator",$c);
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| 376 | }
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| 377 | }
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| 378 |
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| 379 | $file = $file_unicode;
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| 380 | my $filemeta = $self->filename_to_utf8_metadata($file);
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| 381 | my $filemeta_url_safe = $videoconvert->url_safe($filemeta);
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| 382 |
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| 383 | $doc_obj->add_utf8_metadata ($section, "Video", $filemeta_url_safe);
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| 384 |
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| 385 | # Also want to set filename as 'Source' metadata to be
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| 386 | # consistent with other plugins
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| 387 | $doc_obj->add_utf8_metadata ($section, "Source", $filemeta_url_safe);
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| 388 |
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| 389 |
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| 390 | if ($video_type ne " ") {
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| 391 | $type = $video_type;
|
|---|
| 392 | }
|
|---|
| 393 |
|
|---|
| 394 | $doc_obj->add_metadata ($section, "FileFormat", $type);
|
|---|
| 395 | $doc_obj->add_metadata ($section, "FileSize", $video_size);
|
|---|
| 396 |
|
|---|
| 397 | $doc_obj->add_metadata ($section, "VideoType", $video_type);
|
|---|
| 398 | $doc_obj->add_metadata ($section, "VideoWidth", $video_width);
|
|---|
| 399 | $doc_obj->add_metadata ($section, "VideoHeight", $video_height);
|
|---|
| 400 | $doc_obj->add_metadata ($section, "VideoDuration", $video_duration);
|
|---|
| 401 | $doc_obj->add_metadata ($section, "VideoSize", $video_size);
|
|---|
| 402 |
|
|---|
| 403 | $doc_obj->add_metadata ($section, "VideoCodec", $vcodec);
|
|---|
| 404 | $doc_obj->add_metadata ($section, "VideoFPS", $vfps);
|
|---|
| 405 |
|
|---|
| 406 | $doc_obj->add_metadata ($section, "AudioType", $atype);
|
|---|
| 407 | $doc_obj->add_metadata ($section, "AudioFreq", $afreq);
|
|---|
| 408 | $doc_obj->add_metadata ($section, "AudioChannels", $achan);
|
|---|
| 409 | $doc_obj->add_metadata ($section, "AudioRate", $arate);
|
|---|
| 410 |
|
|---|
| 411 | $doc_obj->add_utf8_metadata ($section, "srclink",
|
|---|
| 412 | "<a href=\"_httpprefix_/collect/[collection]/index/assoc/[assocfilepath]/[Video]\">");
|
|---|
| 413 | $doc_obj->add_utf8_metadata ($section, "/srclink", "</a>");
|
|---|
| 414 | $doc_obj->add_metadata ($section, "srcicon", "[VideoType]");
|
|---|
| 415 |
|
|---|
| 416 | # Add the image as an associated file
|
|---|
| 417 | $doc_obj->associate_file($filename,$file,"video/$type",$section);
|
|---|
| 418 |
|
|---|
| 419 |
|
|---|
| 420 | if ($self->{'extractkeyframes'}) {
|
|---|
| 421 | # Generate the keyframes with ffmpeg and hive
|
|---|
| 422 | my ($keyframe_cmd,$okeyframe_filename) = $videoconvert->keyframe_cmd($originalfilename || $filename);
|
|---|
| 423 |
|
|---|
| 424 | my $keyframe_options = { @{$videoconvert->{'ffmpeg_monitor'}},
|
|---|
| 425 | 'message_prefix' => "Keyframe",
|
|---|
| 426 | 'message' => "Extracting keyframes" };
|
|---|
| 427 |
|
|---|
| 428 | $videoconvert->run_cached_general_cmd($keyframe_cmd,$okeyframe_filename,$keyframe_options);
|
|---|
| 429 | $videoconvert->parse_shot_xml($self);
|
|---|
| 430 | $videoconvert->associate_keyframes($doc_obj,$section,$self);
|
|---|
| 431 | }
|
|---|
| 432 |
|
|---|
| 433 | my $streamable_regenerated = 0;
|
|---|
| 434 | my $optionally_run_general_cmd
|
|---|
| 435 | = ($convertto_regenerated) ? "regenerate_general_cmd" : "run_cached_general_cmd";
|
|---|
| 436 |
|
|---|
| 437 | if ($self->{'enablestreaming'}) {
|
|---|
| 438 | # Generate the Flash FLV format for streaming purposes
|
|---|
| 439 |
|
|---|
| 440 | my $streaming_bitrate = $self->{'streamingbitrate'};
|
|---|
| 441 | my $streaming_size = $self->{'streamingsize'};
|
|---|
| 442 |
|
|---|
| 443 | my $streaming_quality = "high";
|
|---|
| 444 |
|
|---|
| 445 | my ($stream_cmd,$oflash_filename,$oflash_file)
|
|---|
| 446 | = $videoconvert->stream_cmd($originalfilename || $filename,
|
|---|
| 447 | $video_width,$video_height,
|
|---|
| 448 | $streaming_quality,
|
|---|
| 449 | $streaming_bitrate, $streaming_size);
|
|---|
| 450 |
|
|---|
| 451 |
|
|---|
| 452 | my $streamable_options = { @{$videoconvert->{'ffmpeg_monitor'}},
|
|---|
| 453 | 'message_prefix' => "Stream",
|
|---|
| 454 | 'message' => "Generating streamable video: $oflash_file" };
|
|---|
| 455 |
|
|---|
| 456 | my $streamable_result;
|
|---|
| 457 | my $streamable_had_error;
|
|---|
| 458 | ($streamable_regenerated,$streamable_result,$streamable_had_error)
|
|---|
| 459 | = $videoconvert->$optionally_run_general_cmd($stream_cmd,$oflash_filename,$streamable_options);
|
|---|
| 460 |
|
|---|
| 461 | if (!$streamable_had_error) {
|
|---|
| 462 | my ($streamseekable_cmd,$ostreamseekable_filename) = $videoconvert->streamseekable_cmd($oflash_filename);
|
|---|
| 463 |
|
|---|
| 464 | my $streamseekable_options = { @{$videoconvert->{'flvtool2_monitor'}},
|
|---|
| 465 | 'message_prefix' => "Stream Seekable",
|
|---|
| 466 | 'message' => "Reprocessing video stream to be seekable by timeline: $oflash_file" };
|
|---|
| 467 |
|
|---|
| 468 | if ($streamable_regenerated) {
|
|---|
| 469 | $videoconvert->run_general_cmd($streamseekable_cmd,$streamseekable_options);
|
|---|
| 470 | }
|
|---|
| 471 |
|
|---|
| 472 | my $streamable_url = $oflash_file;
|
|---|
| 473 | ## $streamable_url =~ s/ /%20/g;
|
|---|
| 474 | my $streamable_url_safe = $videoconvert->url_safe($streamable_url);
|
|---|
| 475 |
|
|---|
| 476 | $doc_obj->add_utf8_metadata ($section, "streamablevideo", $streamable_url_safe);
|
|---|
| 477 | $doc_obj->associate_file($oflash_filename,$oflash_file,"video/flash",
|
|---|
| 478 | $section);
|
|---|
| 479 | }
|
|---|
| 480 |
|
|---|
| 481 | my $video_width = $doc_obj->get_metadata_element($section,"VideoWidth");
|
|---|
| 482 | my $video_height = $doc_obj->get_metadata_element($section,"VideoHeight");
|
|---|
| 483 |
|
|---|
| 484 | #
|
|---|
| 485 | # FlowPlayer.swf height+22 pixels
|
|---|
| 486 | # FlowPlayerBlack.swf height+16 pixels
|
|---|
| 487 | # FlowPlayerThermo.swf height+16 pixels
|
|---|
| 488 | # FlowPlayerWhite.swf height+26 pixels
|
|---|
| 489 | my $flashwidth = $video_width;
|
|---|
| 490 | my $flashheight = $video_height + 22;
|
|---|
| 491 | if ($self->{'extractkeyframes'}) {
|
|---|
| 492 | $flashheight += 100;
|
|---|
| 493 | }
|
|---|
| 494 | $doc_obj->add_metadata ($section, "flashwidth", $flashwidth);
|
|---|
| 495 | $doc_obj->add_metadata ($section, "flashheight", $flashheight);
|
|---|
| 496 |
|
|---|
| 497 | my $video_server = $ENV{'GEXT_VIDEO_SERVER'};
|
|---|
| 498 | my $video_prefix = $ENV{'GEXT_VIDEO_PREFIX'};
|
|---|
| 499 | my $base_url = "$video_server$video_prefix/collect/[collection]/index/assoc/[assocfilepath]/";
|
|---|
| 500 | my $base_url_safe = $videoconvert->url_safe($base_url);
|
|---|
| 501 | $doc_obj->add_utf8_metadata ($section, "baseurl",$base_url_safe);
|
|---|
| 502 |
|
|---|
| 503 | $self->{'oflash_file'} = $oflash_file;
|
|---|
| 504 | $self->{'oflash_filename'} = $oflash_filename;
|
|---|
| 505 | }
|
|---|
| 506 |
|
|---|
| 507 |
|
|---|
| 508 | # Make the thumbnail image
|
|---|
| 509 | my $thumbnailsize = $self->{'thumbnailsize'} || 100;
|
|---|
| 510 | my $thumbnailtype = $self->{'thumbnailtype'} || 'jpg';
|
|---|
| 511 |
|
|---|
| 512 |
|
|---|
| 513 | my $thumbnailfile = &util::filename_cat($output_dir,"$ivideo_root.$thumbnailtype");
|
|---|
| 514 |
|
|---|
| 515 |
|
|---|
| 516 | if ($self->{'extractthumbnail'}) {
|
|---|
| 517 | # Generate the thumbnail with convert, a la ImagePlug
|
|---|
| 518 | my ($thumb_cmd ,$othumb_filename)
|
|---|
| 519 | = $videoconvert->keyframe_thumbnail_cmd($filename,$thumbnailfile,$thumbnailsize);
|
|---|
| 520 |
|
|---|
| 521 | my $thumb_options = { 'verbosity' => $verbosity,
|
|---|
| 522 | 'outhandle' => $outhandle,
|
|---|
| 523 | 'message_prefix' => "Thumbnail",
|
|---|
| 524 | 'message' => "Generating thumbnail" };
|
|---|
| 525 |
|
|---|
| 526 | my ($thumb_regenerated,$thumb_result,$thumb_had_error)
|
|---|
| 527 | = $videoconvert->$optionally_run_general_cmd($thumb_cmd,$thumbnailfile,$thumb_options);
|
|---|
| 528 |
|
|---|
| 529 | # Add the thumbnail as an associated file ...
|
|---|
| 530 | if (-e "$thumbnailfile") {
|
|---|
| 531 | $doc_obj->associate_file("$thumbnailfile", "thumbnail.$thumbnailtype",
|
|---|
| 532 | "image/$thumbnailtype",$section);
|
|---|
| 533 | $doc_obj->add_metadata ($section, "ThumbType", $thumbnailtype);
|
|---|
| 534 | $doc_obj->add_metadata ($section, "Thumb", "thumbnail.$thumbnailtype");
|
|---|
| 535 |
|
|---|
| 536 | $doc_obj->add_utf8_metadata ($section, "thumbicon", "<img src=\"_httpprefix_/collect/[collection]/index/assoc/[assocfilepath]/[Thumb]\" width=[ThumbWidth] height=[ThumbHeight]>");
|
|---|
| 537 | ### $doc_obj->add_utf8_metadata ($section, "thumbicon", "<img src=\"_httpprefix_/collect/[collection]/index/assoc/[assocfilepath]/[Thumb]\">");
|
|---|
| 538 | }
|
|---|
| 539 |
|
|---|
| 540 | # Extract Thumnail metadata from convert output
|
|---|
| 541 | if ($thumb_result =~ m/[0-9]+x[0-9]+=>([0-9]+)x([0-9]+)/) {
|
|---|
| 542 | $doc_obj->add_metadata ($section, "ThumbWidth", $1);
|
|---|
| 543 | $doc_obj->add_metadata ($section, "ThumbHeight", $2);
|
|---|
| 544 | }
|
|---|
| 545 | else {
|
|---|
| 546 | # Two reasons for getting to here:
|
|---|
| 547 | # 1.thumbnail was generated by ffmpeg, not imagemagick convert
|
|---|
| 548 | # 2.thumbnail was cached, so imagemagick convert was not run
|
|---|
| 549 | # Either way, the solution is the same:
|
|---|
| 550 | # => run "identify $thumbnailfile" and parse result
|
|---|
| 551 |
|
|---|
| 552 | $thumb_result = `identify \"$thumbnailfile\"`;
|
|---|
| 553 |
|
|---|
| 554 | if ($thumb_result =~ m/([0-9]+)x([0-9]+)/) {
|
|---|
| 555 | $doc_obj->add_metadata ($section, "ThumbWidth", $1);
|
|---|
| 556 | $doc_obj->add_metadata ($section, "ThumbHeight", $2);
|
|---|
| 557 | }
|
|---|
| 558 | }
|
|---|
| 559 | }
|
|---|
| 560 |
|
|---|
| 561 | if ($self->{'extractkeyframes'}) {
|
|---|
| 562 |
|
|---|
| 563 | # Generate the mosaic with 'montage'
|
|---|
| 564 | my $montagefile = &util::filename_cat($output_dir,"$ivideo_root\_montage.$thumbnailtype");
|
|---|
| 565 |
|
|---|
| 566 | my ($montage_cmd,$omontage_filename)
|
|---|
| 567 | = $videoconvert->keyframe_montage_cmd($filename,$montagefile);
|
|---|
| 568 |
|
|---|
| 569 | my $montage_options = { 'message_prefix' => "Montage",
|
|---|
| 570 | 'message' => "Generating montage" };
|
|---|
| 571 |
|
|---|
| 572 | my ($montage_result,$montage_had_error)
|
|---|
| 573 | = $videoconvert->run_general_cmd($montage_cmd,$montage_options);
|
|---|
| 574 |
|
|---|
| 575 | # Add the montage as an associated file ...
|
|---|
| 576 | if (-e "$montagefile") {
|
|---|
| 577 | $doc_obj->associate_file("$montagefile", "montage.$thumbnailtype",
|
|---|
| 578 | "image/$thumbnailtype",$section);
|
|---|
| 579 | $doc_obj->add_metadata ($section, "MontageType", $thumbnailtype);
|
|---|
| 580 | $doc_obj->add_metadata ($section, "Montage", "montage.$thumbnailtype");
|
|---|
| 581 |
|
|---|
| 582 | $doc_obj->add_utf8_metadata ($section, "montageicon", "<img src=\"_httpprefix_/collect/[collection]/index/assoc/[assocfilepath]/[Montage]\" >");
|
|---|
| 583 | }
|
|---|
| 584 | }
|
|---|
| 585 |
|
|---|
| 586 |
|
|---|
| 587 |
|
|---|
| 588 | # Make a screen-sized version of the picture if requested
|
|---|
| 589 | if ($self->{'extractscreenview'}) {
|
|---|
| 590 |
|
|---|
| 591 | # To do: if the actual image smaller than the screenview size,
|
|---|
| 592 | # we should use the original !
|
|---|
| 593 |
|
|---|
| 594 | my $screenviewsize = $self->{'screenviewsize'};
|
|---|
| 595 | my $screenviewtype = $self->{'screenviewtype'} || 'jpeg';
|
|---|
| 596 | my $screenviewfilename = &util::filename_cat($output_dir,"$ivideo_root.$screenviewtype");
|
|---|
| 597 |
|
|---|
| 598 | # make the screenview image
|
|---|
| 599 |
|
|---|
| 600 | my ($screenview_cmd,$oscreenview_filename)
|
|---|
| 601 | = $videoconvert->keyframe_thumbnail_cmd($filename,$screenviewfilename,$screenviewsize);
|
|---|
| 602 |
|
|---|
| 603 | my $screenview_options = { 'message_prefix' => "Screenview",
|
|---|
| 604 | 'message' => "Generating screenview image" };
|
|---|
| 605 |
|
|---|
| 606 | my ($result,$had_error)
|
|---|
| 607 | = $videoconvert->run_general_cmd($screenview_cmd,$screenview_options);
|
|---|
| 608 |
|
|---|
| 609 | # get screenview dimensions, size and type
|
|---|
| 610 | if ($result =~ m/[0-9]+x[0-9]+=>([0-9]+)x([0-9]+)/) {
|
|---|
| 611 | $doc_obj->add_metadata ($section, "ScreenWidth", $1);
|
|---|
| 612 | $doc_obj->add_metadata ($section, "ScreenHeight", $2);
|
|---|
| 613 | }
|
|---|
| 614 | else {
|
|---|
| 615 | $doc_obj->add_metadata ($section, "ScreenWidth", $video_width);
|
|---|
| 616 | $doc_obj->add_metadata ($section, "ScreenHeight", $video_height);
|
|---|
| 617 | }
|
|---|
| 618 |
|
|---|
| 619 | #add the screenview as an associated file ...
|
|---|
| 620 | if (-e "$screenviewfilename") {
|
|---|
| 621 | $doc_obj->associate_file("$screenviewfilename", "screenview.$screenviewtype",
|
|---|
| 622 | "image/$screenviewtype",$section);
|
|---|
| 623 | $doc_obj->add_metadata ($section, "ScreenType", $screenviewtype);
|
|---|
| 624 | $doc_obj->add_metadata ($section, "Screen", "screenview.$screenviewtype");
|
|---|
| 625 |
|
|---|
| 626 | $doc_obj->add_utf8_metadata ($section, "screenicon", "<img src=\"_httpprefix_/collect/[collection]/index/assoc/[assocfilepath]/[Screen]\" width=[ScreenWidth] height=[ScreenHeight]>");
|
|---|
| 627 | } else {
|
|---|
| 628 | print $outhandle "VideoPlug: couldn't find \"$screenviewfilename\"\n";
|
|---|
| 629 | }
|
|---|
| 630 | }
|
|---|
| 631 |
|
|---|
| 632 | return $type;
|
|---|
| 633 | }
|
|---|
| 634 |
|
|---|
| 635 |
|
|---|
| 636 |
|
|---|
| 637 |
|
|---|
| 638 |
|
|---|
| 639 | # The VideoPlug read() function.
|
|---|
| 640 | # VideoPlug overrides read() because there is no need to read the actual
|
|---|
| 641 | # text of the file in, because the contents of the file is not text...
|
|---|
| 642 | #
|
|---|
| 643 | # Return number of files processed, undef if can't process
|
|---|
| 644 | # Note that $base_dir might be "" and that $file might
|
|---|
| 645 | # include directories
|
|---|
| 646 |
|
|---|
| 647 | sub read {
|
|---|
| 648 | my $self = shift (@_);
|
|---|
| 649 | my ($pluginfo, $base_dir, $file, $metadata, $processor, $maxdocs, $total_count, $gli) = @_;
|
|---|
| 650 |
|
|---|
| 651 | my $outhandle = $self->{'outhandle'};
|
|---|
| 652 |
|
|---|
| 653 | #check process and block exps, smart block, etc
|
|---|
| 654 | my ($block_status,$filename) = $self->read_block(@_);
|
|---|
| 655 | return $block_status if ((!defined $block_status) || ($block_status==0));
|
|---|
| 656 |
|
|---|
| 657 | print STDERR "<Processing n='$file' p='VideoPlug'>\n" if ($gli);
|
|---|
| 658 | print $outhandle "VideoPlug processing $file\n"
|
|---|
| 659 | if $self->{'verbosity'} > 1;
|
|---|
| 660 |
|
|---|
| 661 | # None of this works very well on Windows 95/98...
|
|---|
| 662 | if ($ENV{'GSDLOS'} eq "windows" && !Win32::IsWinNT()) {
|
|---|
| 663 | if ($gli) {
|
|---|
| 664 | print STDERR "<ProcessingError n='$file' r='Windows 95/98 not supported'>\n";
|
|---|
| 665 | }
|
|---|
| 666 | print $outhandle "VideoPlug: Windows 95/98 not supported\n";
|
|---|
| 667 | return -1;
|
|---|
| 668 | }
|
|---|
| 669 |
|
|---|
| 670 | # None of this is going to work very well without ffmpeg
|
|---|
| 671 | if ($self->{'ffmpeg_not_installed'}) {
|
|---|
| 672 | if ($gli) {
|
|---|
| 673 | print STDERR "<ProcessingError n='$file' r='ffmpeg not installed'>\n";
|
|---|
| 674 | }
|
|---|
| 675 | print $outhandle "VideoPlug: ffmpeg not installed\n";
|
|---|
| 676 | return -1;
|
|---|
| 677 | }
|
|---|
| 678 |
|
|---|
| 679 | #if there's a leading directory name, eat it...
|
|---|
| 680 | $file =~ s/^.*[\/\\]//;
|
|---|
| 681 |
|
|---|
| 682 | # create a new document
|
|---|
| 683 | my $doc_obj = new doc ($filename, "indexed_doc");
|
|---|
| 684 |
|
|---|
| 685 | $doc_obj->set_OIDtype ($processor->{'OIDtype'}, $processor->{'OIDmetadata'});
|
|---|
| 686 | $doc_obj->add_utf8_metadata($doc_obj->get_top_section(), "Plugin", "$self->{'plugin_type'}");
|
|---|
| 687 |
|
|---|
| 688 | #run convert to get the thumbnail and extract size and type info
|
|---|
| 689 | my $result = $self->run_convert($base_dir, $filename, $file, $doc_obj);
|
|---|
| 690 |
|
|---|
| 691 | if (!defined $result)
|
|---|
| 692 | {
|
|---|
| 693 | if ($gli) {
|
|---|
| 694 | print STDERR "<ProcessingError n='$file'>\n";
|
|---|
| 695 | }
|
|---|
| 696 | print $outhandle "VideoPlug: couldn't process \"$filename\"\n";
|
|---|
| 697 | return -1; # error during processing
|
|---|
| 698 | }
|
|---|
| 699 |
|
|---|
| 700 | #create an empty text string so we don't break downstream plugins
|
|---|
| 701 | my $text = &gsprintf::lookup_string("{BasePlugin.dummy_text}");
|
|---|
| 702 | # include any metadata passed in from previous plugins
|
|---|
| 703 | # note that this metadata is associated with the top level section
|
|---|
| 704 | my $section = $doc_obj->get_top_section();
|
|---|
| 705 | $self->extra_metadata ($doc_obj, $section, $metadata);
|
|---|
| 706 |
|
|---|
| 707 | # do plugin specific processing of doc_obj
|
|---|
| 708 | unless (defined ($self->process(\$text, $pluginfo, $base_dir, $file, $metadata, $doc_obj))) {
|
|---|
| 709 | print STDERR "<ProcessingError n='$file'>\n" if ($gli);
|
|---|
| 710 | return -1;
|
|---|
| 711 | }
|
|---|
| 712 |
|
|---|
| 713 |
|
|---|
| 714 |
|
|---|
| 715 | # do any automatic metadata extraction
|
|---|
| 716 | $self->auto_extract_metadata ($doc_obj);
|
|---|
| 717 |
|
|---|
| 718 | # if we haven't found any Title so far, assign one
|
|---|
| 719 | # this was shifted to here from inside read()
|
|---|
| 720 | $self->title_fallback($doc_obj,$section,$file);
|
|---|
| 721 |
|
|---|
| 722 | # add an OID
|
|---|
| 723 | #
|
|---|
| 724 | # Caveat: Don't want to hash on the source/converted video as typically
|
|---|
| 725 | # prohibitively large => temporarily set source/converted filename
|
|---|
| 726 | # to 'undef' (causes set_OID to hash on metadata and text stored within
|
|---|
| 727 | # $doc_ob) then restore to previous value.
|
|---|
| 728 | #
|
|---|
| 729 | my $stored_gsdlsourcefilename = $doc_obj->get_source_filename();
|
|---|
| 730 | $doc_obj->set_source_filename(undef);
|
|---|
| 731 |
|
|---|
| 732 | $self->add_OID($doc_obj);
|
|---|
| 733 |
|
|---|
| 734 | $doc_obj->set_source_filename($stored_gsdlsourcefilename);
|
|---|
| 735 |
|
|---|
| 736 | $doc_obj->add_text($section, $text);
|
|---|
| 737 |
|
|---|
| 738 | # process the document
|
|---|
| 739 | $processor->process($doc_obj);
|
|---|
| 740 |
|
|---|
| 741 | if (($self->{'enablestreaming'}) && ($self->{'extractkeyframes'})) {
|
|---|
| 742 | my $oflash_filename = $self->{'oflash_filename'};
|
|---|
| 743 | my $videoconvert = $self->{'videoconvert'};
|
|---|
| 744 | my ($streamkeyframes_cmd,$ostreamkeyframes_filename)
|
|---|
| 745 | = $videoconvert->streamkeyframes_cmd($oflash_filename,$doc_obj,$section);
|
|---|
| 746 |
|
|---|
| 747 | my $verbosity = $self->{'verbosity'};
|
|---|
| 748 |
|
|---|
| 749 | my $streamkeyframes_options = { @{$videoconvert->{'flvtool2_monitor'}},
|
|---|
| 750 | 'message_prefix' => "Stream Keyframes",
|
|---|
| 751 | 'message' => "Reprocessing video stream to add keyframes on timeline" };
|
|---|
| 752 | #### this used to be commented out!!!
|
|---|
| 753 | $videoconvert->run_general_cmd($streamkeyframes_cmd,$streamkeyframes_options);
|
|---|
| 754 | }
|
|---|
| 755 |
|
|---|
| 756 |
|
|---|
| 757 | $self->{'num_processed'}++;
|
|---|
| 758 |
|
|---|
| 759 | return 1;
|
|---|
| 760 | }
|
|---|
| 761 |
|
|---|
| 762 | # do plugin specific processing of doc_obj
|
|---|
| 763 | sub process {
|
|---|
| 764 | my $self = shift (@_);
|
|---|
| 765 | my ($textref, $pluginfo, $base_dir, $file, $metadata, $doc_obj) = @_;
|
|---|
| 766 | my $outhandle = $self->{'outhandle'};
|
|---|
| 767 |
|
|---|
| 768 | return 1;
|
|---|
| 769 | }
|
|---|
| 770 |
|
|---|
| 771 |
|
|---|
| 772 |
|
|---|
| 773 | sub output_distributed_keyframes
|
|---|
| 774 | {
|
|---|
| 775 | my ($self) = shift @_;
|
|---|
| 776 | my ($timeline,$num_dist_frames) = @_;
|
|---|
| 777 |
|
|---|
| 778 | my $num_total_frames = $self->{'num-total-frames'};
|
|---|
| 779 |
|
|---|
| 780 | my $frame_delta = $num_total_frames/$num_dist_frames;
|
|---|
| 781 |
|
|---|
| 782 | my $closest_to = $frame_delta;
|
|---|
| 783 | my $prev_t = 0;
|
|---|
| 784 |
|
|---|
| 785 | # print STDERR "*** num total frames = $num_total_frames\n";
|
|---|
| 786 | # print STDERR "*** frame delta = $frame_delta\n";
|
|---|
| 787 |
|
|---|
| 788 | foreach my $curr_t (sort { $a <=> $b } keys %$timeline)
|
|---|
| 789 | {
|
|---|
| 790 | # print STDERR "*** curr_t = $curr_t\n";
|
|---|
| 791 |
|
|---|
| 792 | if ($curr_t>$closest_to) {
|
|---|
| 793 | # decide if previous t (prev_t_ or current t (curr_t) is closest
|
|---|
| 794 |
|
|---|
| 795 | my $timeline_rec;
|
|---|
| 796 |
|
|---|
| 797 | my $prev_t_dist = $closest_to - $prev_t;
|
|---|
| 798 | my $curr_t_dist = $curr_t - $closest_to;
|
|---|
| 799 |
|
|---|
| 800 | if ($curr_t_dist <= $prev_t_dist)
|
|---|
| 801 | {
|
|---|
| 802 | $timeline_rec = $timeline->{$curr_t}
|
|---|
| 803 | }
|
|---|
| 804 | else
|
|---|
| 805 | {
|
|---|
| 806 | $timeline_rec = $timeline->{$prev_t}
|
|---|
| 807 | }
|
|---|
| 808 |
|
|---|
| 809 | my $name = $timeline_rec->{'name'};
|
|---|
| 810 | my $timestamp = $timeline_rec->{'timestamp'};
|
|---|
| 811 | my $thumb = $timeline_rec->{'thumb'};
|
|---|
| 812 |
|
|---|
| 813 |
|
|---|
| 814 | print CUEOUT " <metatag event=\"onCuePoint\" overwrite=\"true\">\n";
|
|---|
| 815 | print CUEOUT " <name>$name</name>\n";
|
|---|
| 816 | print CUEOUT " <timestamp>$timestamp</timestamp>\n";
|
|---|
| 817 | print CUEOUT " <parameters>\n";
|
|---|
| 818 | print CUEOUT " <thumb>$thumb</thumb>\n";
|
|---|
| 819 | print CUEOUT " </parameters>\n";
|
|---|
| 820 | print CUEOUT " <type>navigation</type>\n";
|
|---|
| 821 | print CUEOUT " </metatag>\n";
|
|---|
| 822 |
|
|---|
| 823 | # my $testtime = $timestamp+1000;
|
|---|
| 824 | # print CUEOUT " <metatag event=\"onCuePoint\" overwrite=\"true\">\n";
|
|---|
| 825 | # print CUEOUT " <name>Test $name</name>\n";
|
|---|
| 826 | # print CUEOUT " <timestamp>$testtime</timestamp>\n";
|
|---|
| 827 | # print CUEOUT " <parameters>\n";
|
|---|
| 828 | # print CUEOUT " <thumb>$thumb</thumb>\n";
|
|---|
| 829 | # print CUEOUT " <secnum>1</secnum>\n";
|
|---|
| 830 | # print CUEOUT " <subsecnum>0</subsecnum>\n";
|
|---|
| 831 | # print CUEOUT " </parameters>\n";
|
|---|
| 832 | # print CUEOUT " <type>event</type>\n";
|
|---|
| 833 | # print CUEOUT " </metatag>\n";
|
|---|
| 834 |
|
|---|
| 835 | $closest_to += $frame_delta;
|
|---|
| 836 | }
|
|---|
| 837 | $prev_t = $curr_t;
|
|---|
| 838 | }
|
|---|
| 839 | }
|
|---|
| 840 |
|
|---|
| 841 |
|
|---|
| 842 |
|
|---|
| 843 | sub Doctype {
|
|---|
| 844 | my ($expat, $name, $sysid, $pubid, $internal) = @_;
|
|---|
| 845 |
|
|---|
| 846 | # my $root_tag = $self->{'root_tag'};
|
|---|
| 847 |
|
|---|
| 848 | if ($name !~ "seg") {
|
|---|
| 849 | die "Root tag $name does not match expected <seg>";
|
|---|
| 850 | }
|
|---|
| 851 | }
|
|---|
| 852 |
|
|---|
| 853 | sub StartTag {
|
|---|
| 854 | my ($expat, $element) = @_;
|
|---|
| 855 |
|
|---|
| 856 | my %attr = %_;
|
|---|
| 857 |
|
|---|
| 858 | if ($element eq "seg") {
|
|---|
| 859 | $self->{'keyframe_index'} = 0;
|
|---|
| 860 | $self->{'keyframe_fnames'} = [];
|
|---|
| 861 | $self->{'keyframe_timeline'} = {};
|
|---|
| 862 |
|
|---|
| 863 | #$self->{'flowplayer_thumblist'} = "thumbs: \\[";
|
|---|
| 864 |
|
|---|
| 865 | my $output_dir = $self->{'videoconvert'}->{'cached_dir'};
|
|---|
| 866 | my $cue_filename = &util::filename_cat($output_dir,"on_cue.xml");
|
|---|
| 867 |
|
|---|
| 868 | open(CUEOUT,">$cue_filename")
|
|---|
| 869 | || die "Unable to open $cue_filename: $!\n";
|
|---|
| 870 | print CUEOUT "<tags>\n";
|
|---|
| 871 | }
|
|---|
| 872 | elsif ($element eq "trans") {
|
|---|
| 873 | my $trans_type = $attr{'type'};
|
|---|
| 874 | my $pre_frame_num = $attr{'preFNum'};
|
|---|
| 875 | my $post_frame_num = $attr{'postFNum'};
|
|---|
| 876 |
|
|---|
| 877 | my $avg_frame_num = int(($pre_frame_num+$post_frame_num)/2.0)+1;
|
|---|
| 878 |
|
|---|
| 879 | my $output_dir = $self->{'videoconvert'}->{'cached_dir'};
|
|---|
| 880 | my $ivideo_root = $self->{'videoconvert'}->{'file_root'};
|
|---|
| 881 |
|
|---|
| 882 | my $keyframe_index = $self->{'keyframe_index'};
|
|---|
| 883 |
|
|---|
| 884 | my $fps = $self->{'video-fps'};
|
|---|
| 885 |
|
|---|
| 886 | if ($keyframe_index==0)
|
|---|
| 887 | {
|
|---|
| 888 | # hive actually generates one extra keyframe at the start,
|
|---|
| 889 | # which is half way between frame 0 and the frist pre_frame
|
|---|
| 890 |
|
|---|
| 891 | my $thumb_file = sprintf("%s_%04d.jpg",$ivideo_root,$keyframe_index);
|
|---|
| 892 | my $thumb_filename = &util::filename_cat($output_dir,$thumb_file);
|
|---|
| 893 | push(@{$self->{'keyframe_fnames'}},$thumb_file);
|
|---|
| 894 |
|
|---|
| 895 | my $half_frame_num = $pre_frame_num/2.0;
|
|---|
| 896 | my $time_msec = ($half_frame_num / $fps) * 1000;
|
|---|
| 897 |
|
|---|
| 898 | # print CUEOUT " <metatag event=\"onCuePoint\" overwrite=\"true\">\n";
|
|---|
| 899 | # print CUEOUT " <name>Keyframe $keyframe_index</name>\n";
|
|---|
| 900 | # print CUEOUT " <timestamp>$time_msec</timestamp>\n";
|
|---|
| 901 | # print CUEOUT " <parameters>\n";
|
|---|
| 902 | # print CUEOUT " <thumb>$thumb_file</thumb>\n";
|
|---|
| 903 | # print CUEOUT " </parameters>\n";
|
|---|
| 904 | # print CUEOUT " <type>navigation</type>\n";
|
|---|
| 905 | # print CUEOUT " </metatag>\n";
|
|---|
| 906 |
|
|---|
| 907 |
|
|---|
| 908 | my $timeline_rec = { 'name'=> "Keyframe $keyframe_index",
|
|---|
| 909 | 'keyframeindex' => $keyframe_index,
|
|---|
| 910 | 'timestamp' => $time_msec,
|
|---|
| 911 | 'thumb' => $thumb_file };
|
|---|
| 912 |
|
|---|
| 913 | $self->{'keyframe_timeline'}->{$half_frame_num}=$timeline_rec;
|
|---|
| 914 |
|
|---|
| 915 | }
|
|---|
| 916 |
|
|---|
| 917 | $keyframe_index++;
|
|---|
| 918 |
|
|---|
| 919 | my $thumb_file = sprintf("%s_%04d.jpg",$ivideo_root,$keyframe_index);
|
|---|
| 920 | my $thumb_filename = &util::filename_cat($output_dir,$thumb_file);
|
|---|
| 921 | push(@{$self->{'keyframe_fnames'}},$thumb_file);
|
|---|
| 922 |
|
|---|
| 923 | my $time_msec = (($avg_frame_num) / $fps) * 1000;
|
|---|
| 924 | my $time_sec = (($avg_frame_num)/ $fps);
|
|---|
| 925 |
|
|---|
| 926 | # print CUEOUT " <metatag event=\"onCuePoint\" overwrite=\"true\">\n";
|
|---|
| 927 | # print CUEOUT " <name>Keyframe $keyframe_index</name>\n";
|
|---|
| 928 | # print CUEOUT " <timestamp>$time_msec</timestamp>\n";
|
|---|
| 929 | # print CUEOUT " <parameters>\n";
|
|---|
| 930 | # print CUEOUT " <thumb>$thumb_file</thumb>\n";
|
|---|
| 931 | # print CUEOUT " </parameters>\n";
|
|---|
| 932 | # print CUEOUT " <type>navigation</type>\n";
|
|---|
| 933 | # print CUEOUT " </metatag>\n";
|
|---|
| 934 |
|
|---|
| 935 |
|
|---|
| 936 | my $timeline_rec = { 'name'=> "Keyframe $keyframe_index",
|
|---|
| 937 | 'keyframeindex' => $keyframe_index,
|
|---|
| 938 | 'timestamp' => $time_msec,
|
|---|
| 939 | 'thumb' => $thumb_file };
|
|---|
| 940 |
|
|---|
| 941 | $self->{'keyframe_timeline'}->{$avg_frame_num}=$timeline_rec;
|
|---|
| 942 |
|
|---|
| 943 |
|
|---|
| 944 | # $self->{'flowplayer_thumblist'} .= "\\{ thumbNail: '$thumb_file', time: $time_sec \\},";
|
|---|
| 945 |
|
|---|
| 946 | $self->{'keyframe_index'} = $keyframe_index;
|
|---|
| 947 | }
|
|---|
| 948 | }
|
|---|
| 949 |
|
|---|
| 950 | sub EndTag {
|
|---|
| 951 | my ($expat, $element) = @_;
|
|---|
| 952 |
|
|---|
| 953 | if ($element eq "seg") {
|
|---|
| 954 |
|
|---|
| 955 | $self->output_distributed_keyframes($self->{'keyframe_timeline'},6);
|
|---|
| 956 |
|
|---|
| 957 |
|
|---|
| 958 | print CUEOUT "</tags>\n";
|
|---|
| 959 | close(CUEOUT);
|
|---|
| 960 |
|
|---|
| 961 | #$self->{'flowplayer_thumblist'} .= "\\]";
|
|---|
| 962 | }
|
|---|
| 963 | }
|
|---|
| 964 |
|
|---|
| 965 |
|
|---|
| 966 | sub Text {
|
|---|
| 967 | my $text = $_;
|
|---|
| 968 | }
|
|---|
| 969 |
|
|---|
| 970 | # This Char function overrides the one in XML::Parser::Stream to overcome a
|
|---|
| 971 | # problem where $expat->{Text} is treated as the return value, slowing
|
|---|
| 972 | # things down significantly in some cases.
|
|---|
| 973 | sub Char {
|
|---|
| 974 | $_[0]->{'Text'} .= $_[1];
|
|---|
| 975 | return undef;
|
|---|
| 976 | }
|
|---|
| 977 |
|
|---|
| 978 | 1;
|
|---|
| 979 |
|
|---|
| 980 |
|
|---|
| 981 |
|
|---|
| 982 |
|
|---|
| 983 |
|
|---|
| 984 |
|
|---|
| 985 |
|
|---|
| 986 |
|
|---|
| 987 |
|
|---|
| 988 |
|
|---|
| 989 |
|
|---|
