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;
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392 | }
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393 |
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394 | $doc_obj->add_metadata ($section, "FileFormat", $type);
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395 | $doc_obj->add_metadata ($section, "FileSize", $video_size);
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396 |
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397 | $doc_obj->add_metadata ($section, "VideoType", $video_type);
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398 | $doc_obj->add_metadata ($section, "VideoWidth", $video_width);
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399 | $doc_obj->add_metadata ($section, "VideoHeight", $video_height);
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400 | $doc_obj->add_metadata ($section, "VideoDuration", $video_duration);
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401 | $doc_obj->add_metadata ($section, "VideoSize", $video_size);
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402 |
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403 | $doc_obj->add_metadata ($section, "VideoCodec", $vcodec);
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404 | $doc_obj->add_metadata ($section, "VideoFPS", $vfps);
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405 |
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406 | $doc_obj->add_metadata ($section, "AudioType", $atype);
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407 | $doc_obj->add_metadata ($section, "AudioFreq", $afreq);
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408 | $doc_obj->add_metadata ($section, "AudioChannels", $achan);
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409 | $doc_obj->add_metadata ($section, "AudioRate", $arate);
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410 |
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411 | $doc_obj->add_utf8_metadata ($section, "srclink",
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412 | "<a href=\"_httpprefix_/collect/[collection]/index/assoc/[assocfilepath]/[Video]\">");
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413 | $doc_obj->add_utf8_metadata ($section, "/srclink", "</a>");
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414 | $doc_obj->add_metadata ($section, "srcicon", "[VideoType]");
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415 |
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416 | # Add the image as an associated file
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417 | $doc_obj->associate_file($filename,$file,"video/$type",$section);
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418 |
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419 |
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420 | if ($self->{'extractkeyframes'}) {
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421 | # Generate the keyframes with ffmpeg and hive
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422 | my ($keyframe_cmd,$okeyframe_filename) = $videoconvert->keyframe_cmd($originalfilename || $filename);
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423 |
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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 |
|
---|