1 | ######################################################################
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2 | #
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3 | # VideoPlugin.pm -- plugin for processing video files
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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 | # -- Largely modeled on how ImagePlugin works
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27 | # -- Can convert to audio as well as video
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28 |
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29 | package VideoPlugin;
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30 |
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31 | use strict;
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32 | no strict 'refs'; # allow filehandles to be variables and viceversa
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33 | no strict 'subs';
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34 |
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35 | use XMLParser;
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36 | use gsprintf;
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37 |
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38 | use MultimediaPlugin;
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39 | use VideoConverter;
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40 | use ReadXMLFile;
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41 |
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42 | sub BEGIN {
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43 | @VideoPlugin::ISA = ('MultimediaPlugin', 'VideoConverter', 'ReadXMLFile');
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44 | }
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45 |
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46 |
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47 | my $arguments =
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48 | [ { 'name' => "process_exp",
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49 | 'desc' => "{BasePlugin.process_exp}",
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50 | 'type' => "regexp",
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51 | 'deft' => &get_default_process_exp(),
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52 | 'reqd' => "no" } ];
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53 |
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54 |
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55 | my $options = { 'name' => "VideoPlugin",
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56 | 'desc' => "{VideoPlugin.desc}",
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57 | 'abstract' => "no",
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58 | 'inherits' => "yes",
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59 | 'args' => $arguments };
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60 |
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61 | sub new {
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62 | my ($class) = shift (@_);
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63 | my ($pluginlist,$inputargs,$hashArgOptLists) = @_;
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64 | push(@$pluginlist, $class);
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65 |
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66 | push(@{$hashArgOptLists->{"ArgList"}},@{$arguments});
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67 | push(@{$hashArgOptLists->{"OptList"}},$options);
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68 |
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69 | new VideoConverter($pluginlist, $inputargs, $hashArgOptLists);
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70 | my $self = new MultimediaPlugin($pluginlist, $inputargs, $hashArgOptLists);
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71 |
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72 | if ($self->{'info_only'}) {
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73 | # don't worry about creating the XML parser as all we want is the
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74 | # list of plugin options
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75 | return bless $self, $class;
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76 | }
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77 |
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78 |
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79 | # create XML::Parser object for parsing keyframe files (produced by hive)
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80 | my $parser = new XML::Parser('Style' => 'Stream',
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81 | 'Pkg' => 'VideoPlugin',
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82 | 'PluginObj' => $self,
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83 | 'Namespaces' => 1, # strip out namespaces
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84 | 'Handlers' => {'Char' => \&Char,
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85 | 'XMLDecl' => \&XMLDecl,
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86 | 'Entity' => \&Entity,
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87 | 'Doctype' => \&Doctype,
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88 | 'Default' => \&Default
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89 | });
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90 |
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91 | $self->{'parser'} = $parser;
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92 |
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93 |
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94 | return bless $self, $class;
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95 | }
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96 |
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97 |
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98 |
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99 | sub begin {
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100 | my $self = shift (@_);
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101 | my ($pluginfo, $base_dir, $processor, $maxdocs) = @_;
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102 |
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103 | $self->SUPER::begin(@_);
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104 | $self->VideoConverter::begin(@_);
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105 | }
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106 |
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107 |
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108 | sub init {
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109 | my $self = shift (@_);
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110 | my ($verbosity, $outhandle, $failhandle) = @_;
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111 |
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112 | $self->SUPER::init(@_);
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113 | $self->VideoConverter::init(@_);
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114 | }
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115 |
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116 |
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117 | sub get_default_process_exp {
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118 | my $self = shift (@_);
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119 |
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120 | return q^(?i)\.(mpe?g|flv|mov|qt|wmv|vob|avi|mp4|m4v)$^;
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121 | }
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122 |
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123 |
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124 | sub extract_keyframes
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125 | {
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126 | my $self = shift (@_);
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127 | my ($doc_obj,$originalfilename,$filename) = @_;
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128 |
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129 | my $section = $doc_obj->get_top_section();
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130 |
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131 | my $output_dir = $self->{'cached_dir'};
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132 | my $ivideo_root = $self->{'cached_file_root'};
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133 |
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134 | # Generate the keyframes with ffmpeg and hive
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135 | my ($keyframe_cmd,$okeyframe_filename) = $self->keyframe_cmd($originalfilename || $filename);
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136 |
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137 | my $keyframe_options = { @{$self->{'ffmpeg_monitor'}},
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138 | 'message_prefix' => "Keyframe",
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139 | 'message' => "Extracting keyframes" };
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140 |
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141 | $self->run_cached_general_cmd($keyframe_cmd,$okeyframe_filename,$keyframe_options);
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142 | $self->parse_shot_xml();
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143 | $self->associate_keyframes($doc_obj,$section);
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144 | }
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145 |
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146 |
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147 |
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148 | sub extract_thumbnail
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149 | {
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150 | my $self = shift (@_);
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151 | my ($doc_obj,$filename,$convertto_regenerated,$thumbnailtype,
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152 | $thumbnail_width, $thumbnail_height) = @_;
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153 |
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154 | my $section = $doc_obj->get_top_section();
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155 |
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156 | my $output_dir = $self->{'cached_dir'};
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157 | my $ivideo_root = $self->{'cached_file_root'};
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158 |
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159 | my $verbosity = $self->{'verbosity'};
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160 | my $outhandle = $self->{'outhandle'};
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161 |
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162 |
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163 | # Generate the thumbnail with convert, a la ImagePlug
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164 |
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165 | my $thumbnailfile = &util::filename_cat($output_dir,"$ivideo_root.$thumbnailtype");
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166 |
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167 |
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168 | my $optionally_run_general_cmd = "run_uncached_general_cmd";
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169 | if ($self->{'enable_cache'}) {
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170 | $optionally_run_general_cmd
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171 | = ($convertto_regenerated) ? "regenerate_general_cmd" : "run_cached_general_cmd";
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172 | }
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173 |
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174 | my ($thumb_cmd ,$othumb_filename)
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175 | = $self->keyframe_thumbnail_cmd($filename,$thumbnailfile,$thumbnail_width,$thumbnail_height);
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176 |
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177 | my $thumb_options = { 'verbosity' => $verbosity,
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178 | 'outhandle' => $outhandle,
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179 | 'message_prefix' => "Thumbnail",
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180 | 'message' => "Generating thumbnail" };
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181 |
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182 | my ($thumb_regenerated,$thumb_result,$thumb_had_error)
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183 | = $self->$optionally_run_general_cmd($thumb_cmd,$thumbnailfile,$thumb_options);
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184 |
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185 | # Add the thumbnail as an associated file ...
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186 | if (-e "$thumbnailfile") {
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187 | $doc_obj->associate_file("$thumbnailfile", "thumbnail.$thumbnailtype",
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188 | "image/$thumbnailtype",$section);
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189 | $doc_obj->add_metadata ($section, "ThumbType", $thumbnailtype);
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190 | $doc_obj->add_metadata ($section, "Thumb", "thumbnail.$thumbnailtype");
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191 |
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192 | $doc_obj->add_utf8_metadata ($section, "thumbicon", "<img src=\"_httpprefix_/collect/[collection]/index/assoc/[assocfilepath]/[Thumb]\" width=[ThumbWidth] height=[ThumbHeight]>");
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193 | ### $doc_obj->add_utf8_metadata ($section, "thumbicon", "<img src=\"_httpprefix_/collect/[collection]/index/assoc/[assocfilepath]/[Thumb]\">");
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194 | }
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195 |
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196 | # Extract Thumnail metadata from convert output
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197 | if ($thumb_result =~ m/[0-9]+x[0-9]+=>([0-9]+)x([0-9]+)/) {
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198 | $doc_obj->add_metadata ($section, "ThumbWidth", $1);
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199 | $doc_obj->add_metadata ($section, "ThumbHeight", $2);
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200 | }
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201 | else {
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202 | # Two reasons for getting to here:
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203 | # 1.thumbnail was generated by ffmpeg, not imagemagick convert
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204 | # 2.thumbnail was cached, so imagemagick convert was not run
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205 | # Either way, the solution is the same:
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206 | # => run "identify $thumbnailfile" and parse result
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207 |
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208 | $thumb_result = `identify \"$thumbnailfile\"`;
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209 |
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210 | if ($thumb_result =~ m/([0-9]+)x([0-9]+)/) {
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211 | $doc_obj->add_metadata ($section, "ThumbWidth", $1);
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212 | $doc_obj->add_metadata ($section, "ThumbHeight", $2);
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213 | }
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214 | }
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215 | }
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216 |
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217 |
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218 | sub extract_keyframes_montage
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219 | {
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220 | my $self = shift (@_);
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221 | my ($doc_obj,$filename,$thumbnailtype) = @_;
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222 |
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223 | my $section = $doc_obj->get_top_section();
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224 |
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225 | my $output_dir = $self->{'cached_dir'};
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226 | my $ivideo_root = $self->{'cached_file_root'};
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227 |
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228 |
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229 | # Generate the mosaic with 'montage'
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230 | my $montagefile = &util::filename_cat($output_dir,"$ivideo_root\_montage.$thumbnailtype");
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231 |
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232 | my ($montage_cmd,$omontage_filename)
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233 | = $self->keyframe_montage_cmd($filename,$montagefile);
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234 |
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235 | my $montage_options = { 'message_prefix' => "Montage",
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236 | 'message' => "Generating montage" };
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237 |
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238 | my ($montage_result,$montage_had_error)
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239 | = $self->run_general_cmd($montage_cmd,$montage_options);
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240 |
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241 | # Add the montage as an associated file ...
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242 | if (-e "$montagefile") {
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243 | $doc_obj->associate_file("$montagefile", "montage.$thumbnailtype",
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244 | "image/$thumbnailtype",$section);
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245 | $doc_obj->add_metadata ($section, "MontageType", $thumbnailtype);
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246 | $doc_obj->add_metadata ($section, "Montage", "montage.$thumbnailtype");
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247 |
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248 | $doc_obj->add_utf8_metadata ($section, "montageicon", "<img src=\"_httpprefix_/collect/[collection]/index/assoc/[assocfilepath]/[Montage]\" >");
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249 | }
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250 | }
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251 |
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252 |
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253 |
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254 | sub extract_screenview
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255 | {
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256 | my $self = shift (@_);
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257 | my ($doc_obj,$filename,$screenviewtype, $screenview_width,$screenview_height) = @_;
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258 |
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259 | my $section = $doc_obj->get_top_section();
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260 |
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261 | my $output_dir = $self->{'cached_dir'};
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262 | my $ivideo_root = $self->{'cached_file_root'};
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263 |
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264 |
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265 | # make the screenview image
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266 |
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267 | my $screenviewfilename = &util::filename_cat($output_dir,"$ivideo_root.$screenviewtype");
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268 |
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269 |
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270 | my ($screenview_cmd,$oscreenview_filename)
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271 | = $self->keyframe_thumbnail_cmd($filename,$screenviewfilename,$screenview_width,$screenview_height);
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272 |
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273 | my $screenview_options = { 'message_prefix' => "Screenview",
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274 | 'message' => "Generating screenview image" };
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275 |
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276 | my ($result,$had_error)
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277 | = $self->run_general_cmd($screenview_cmd,$screenview_options);
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278 |
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279 | # get screenview dimensions, size and type
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280 | if ($result =~ m/[0-9]+x[0-9]+=>([0-9]+)x([0-9]+)/) {
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281 | $doc_obj->add_metadata ($section, "ScreenWidth", $1);
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282 | $doc_obj->add_metadata ($section, "ScreenHeight", $2);
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283 | }
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284 | else {
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285 | $doc_obj->add_metadata ($section, "ScreenWidth", $screenview_width);
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286 | $doc_obj->add_metadata ($section, "ScreenHeight", $screenview_height);
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287 | }
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288 |
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289 | #add the screenview as an associated file ...
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290 | if (-e "$screenviewfilename") {
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291 | $doc_obj->associate_file("$screenviewfilename", "screenview.$screenviewtype",
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292 | "image/$screenviewtype",$section);
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293 | $doc_obj->add_metadata ($section, "ScreenType", $screenviewtype);
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294 | $doc_obj->add_metadata ($section, "Screen", "screenview.$screenviewtype");
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295 |
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296 | $doc_obj->add_utf8_metadata ($section, "screenicon", "<img src=\"_httpprefix_/collect/[collection]/index/assoc/[assocfilepath]/[Screen]\" width=[ScreenWidth] height=[ScreenHeight]>");
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297 | } else {
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298 | my $outhandle = $self->{'outhandle'};
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299 | print $outhandle "VideoPlugin: couldn't find \"$screenviewfilename\"\n";
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300 | }
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301 | }
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302 |
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303 |
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304 | # Create the keyframes, thumbnail and screenview images, and discover
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305 | # the Video's size, width, and height using the ffmpeg utility.
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306 |
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307 | sub run_convert {
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308 | my $self = shift (@_);
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309 | my $base_dir = shift (@_);
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310 | my $filename = shift (@_); # filename with full path
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311 | my $file = shift (@_); # filename without path
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312 | my $doc_obj = shift (@_);
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313 |
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314 | my $section = $doc_obj->get_top_section();
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315 |
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316 | my $verbosity = $self->{'verbosity'};
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317 | my $outhandle = $self->{'outhandle'};
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318 |
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319 | # check the filename is okay
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320 | return 0 if ($file eq "" || $filename eq "");
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321 |
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322 | my $minimumsize = $self->{'minimumsize'};
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323 | if (defined $minimumsize && (-s $filename < $minimumsize)) {
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324 | print $outhandle "VideoPlugin: \"$filename\" too small, skipping\n"
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325 | if ($verbosity > 1);
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326 | }
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327 |
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328 | my ($video_type, $video_width, $video_height, $video_duration, $video_size,
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329 | $vcodec,$vfps,$atype,$afreq,$achan,$arate)
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330 | = &VideoConverter::identify($filename, $outhandle, $verbosity);
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331 |
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332 | if ($vfps eq "unknown") {
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333 | print $outhandle "Unknown framerate, defaulting to 25 frames per second.\n";
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334 | $vfps = 25;
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335 | }
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336 |
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337 | my ($dur_hour,$dur_min,$dur_sec)
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338 | = ($video_duration =~ m/(\d+):(\d+):(\d+\.\d+)/);
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339 | my $total_dur_secs = $dur_hour*3600 + $dur_min*60 + $dur_sec;
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340 |
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341 | $self->{'video-fps'} = $vfps;
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342 | $self->{'num-total-frames'} = $total_dur_secs * $vfps;
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343 |
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344 | # Convert the video to a new type (if required).
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345 | my $converttotype = $self->{'converttotype'};
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346 | my $converttosize = $self->{'converttosize'};
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347 |
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348 | # shorten duration prcessed for experimentation purposes
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349 | my $exp_duration = undef;
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350 |
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351 | my $excerpt_duration = $self->{'excerpt_duration'};
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352 |
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353 | if ((defined $excerpt_duration) && ($excerpt_duration ne "")) {
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354 | $exp_duration = $excerpt_duration;
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355 | my ($hh,$mm,$ss,$ms);
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356 |
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357 | if ($exp_duration =~ m/^(\d\d):(\d\d):(\d\d)\.?(\d\d)?/) {
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358 | $hh = $1;
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359 | $mm = $2;
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360 | $ss = $3;
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361 | $ms = $4;
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362 | }
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363 | else {
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364 | # assume value is in seconds
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365 | $hh = 0;
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366 | $mm = 0;
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367 | $ss = $exp_duration;
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368 | $ms = 0;
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369 | }
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370 |
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371 | my $excerpt_dur_in_secs = $hh * 3600 + $mm * 60 + $ss;
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372 |
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373 | if ($excerpt_dur_in_secs < $total_dur_secs) {
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374 | $self->{'num-total-frames'} = $excerpt_dur_in_secs * $vfps; # override calculation for full length duration
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375 | }
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376 | else {
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377 | # clip is already shorter than requested video excerpt duration
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378 | # set exp_duration back to undefined
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379 | $exp_duration = undef;
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380 | }
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381 | }
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382 |
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383 |
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384 | if (defined $exp_duration)
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385 | {
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386 | print $outhandle "Only encoding first $exp_duration of video.\n";
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387 | $self->{'exp_duration'} = $exp_duration;
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388 | }
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389 |
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390 | my $ascii_only_filenames = $self->{'use_ascii_only_filenames'};
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391 | $self->init_cache_for_file($filename);
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392 |
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393 | my $originalfilename = undef;
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394 | my $type = "unknown";
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395 |
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396 | my $output_dir = $self->{'cached_dir'};
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397 | my $ivideo_root = $self->{'cached_file_root'};
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398 |
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399 | my $convertto_regenerated = 0;
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400 | if (($converttotype ne "" && $filename =~ m/$converttotype$/i) ||
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401 | (($converttosize ne "" && $converttosize ne $video_width) || ($converttosize ne "" && $converttosize ne $video_height))) {
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402 | if ($converttotype eq "") {
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403 | # in this block because the video width x height different to original
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404 | # => set (for this call to run_convert only) converttotype
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405 | # to input file extension
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406 | ($converttotype) = ($filename =~ m/\.(.*?)$/);
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407 | }
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408 |
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409 | $originalfilename = $filename;
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410 |
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411 | $file = "$ivideo_root.$converttotype";
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412 | $filename = &util::filename_cat($output_dir,$file);
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413 |
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414 | my $s_opt = $self->optional_frame_scale($converttosize,$video_width,$video_height);
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415 | my $exp_duration = $self->{'exp_duration'};
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416 | my $t_opt = (defined $exp_duration) ? "-t $exp_duration" : "";
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417 |
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418 | my $main_opts = "-y $t_opt $s_opt";
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419 |
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420 |
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421 | my $originalfilename_gsdlenv = $self->gsdlhome_independent($originalfilename);
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422 | my $filename_gsdlenv = $self->gsdlhome_independent($filename);
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423 |
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424 |
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425 | my $convertto_command = "ffmpeg $main_opts -i \"$originalfilename_gsdlenv\"";
|
---|
426 | $convertto_command .= " -ar 22050" if ($converttotype eq "flv");
|
---|
427 | $convertto_command .= " -y \"$filename_gsdlenv\"";
|
---|
428 |
|
---|
429 | my $convertto_result;
|
---|
430 | my $convertto_error;
|
---|
431 |
|
---|
432 | my $convertto_options = { @{$self->{'ffmpeg_monitor'}},
|
---|
433 | 'message_prefix' => "Convert to",
|
---|
434 | 'message' => "Converting video to $converttotype" };
|
---|
435 |
|
---|
436 | ($convertto_regenerated,$convertto_result,$convertto_error)
|
---|
437 | = $self->run_cached_general_cmd($convertto_command,$filename,$convertto_options);
|
---|
438 |
|
---|
439 | $type = $converttotype;
|
---|
440 | }
|
---|
441 |
|
---|
442 |
|
---|
443 | # Add the video metadata
|
---|
444 |
|
---|
445 | my $file_unicode = pack("U0C*", map { ord($_) } split(//,$file)); # force explicitly to unicode
|
---|
446 |
|
---|
447 | $file_unicode =~ s/\x{2018}|\x{2019}|\x{201C}|\x{201D}//g; # remove smart quotes as cause problem in URL for video server
|
---|
448 | $file_unicode =~ s/\x{2013}/\-/g; # change en-dash to '-' as again causes problems for video server
|
---|
449 |
|
---|
450 | ## print STDERR "**** file metadata = ", &gsprintf::debug_unicode_string($file_unicode), "\n";
|
---|
451 |
|
---|
452 |
|
---|
453 | # split filename on char if specified
|
---|
454 | if ($file_unicode =~ m/\-/) {
|
---|
455 |
|
---|
456 | my @file_split = split(/\s*\-\s*/,$file_unicode);
|
---|
457 | my $creator = shift @file_split;
|
---|
458 | my $title = shift @file_split;
|
---|
459 |
|
---|
460 | $title =~ s/\..*?$//;
|
---|
461 | $title =~ s/^(.)/\u$1/;
|
---|
462 |
|
---|
463 | $doc_obj->add_utf8_metadata($section,"Title",$title);
|
---|
464 |
|
---|
465 | my @creator_split = split(/\s+and\s+/,$creator);
|
---|
466 | foreach my $c (@creator_split) {
|
---|
467 | $doc_obj->add_utf8_metadata($section,"Creator",$c);
|
---|
468 | }
|
---|
469 | }
|
---|
470 |
|
---|
471 | $file = $file_unicode;
|
---|
472 | my $filemeta = $self->filename_to_utf8_metadata($file);
|
---|
473 | my $filemeta_url_safe = $self->url_safe($filemeta);
|
---|
474 |
|
---|
475 | $doc_obj->add_utf8_metadata ($section, "Video", $filemeta_url_safe);
|
---|
476 |
|
---|
477 | # Also want to set filename as 'Source' metadata to be
|
---|
478 | # consistent with other plugins
|
---|
479 | $doc_obj->add_utf8_metadata ($section, "Source", $filemeta_url_safe);
|
---|
480 |
|
---|
481 |
|
---|
482 | if ($video_type ne " ") {
|
---|
483 | $type = $video_type;
|
---|
484 | }
|
---|
485 |
|
---|
486 | $doc_obj->add_metadata ($section, "FileFormat", $type);
|
---|
487 | $doc_obj->add_metadata ($section, "FileSize", $video_size);
|
---|
488 |
|
---|
489 | $doc_obj->add_metadata ($section, "VideoType", $video_type);
|
---|
490 | $doc_obj->add_metadata ($section, "VideoWidth", $video_width);
|
---|
491 | $doc_obj->add_metadata ($section, "VideoHeight", $video_height);
|
---|
492 | $doc_obj->add_metadata ($section, "VideoDuration", $video_duration);
|
---|
493 | $doc_obj->add_metadata ($section, "VideoSize", $video_size);
|
---|
494 |
|
---|
495 | $doc_obj->add_metadata ($section, "VideoCodec", $vcodec);
|
---|
496 | $doc_obj->add_metadata ($section, "VideoFPS", $vfps);
|
---|
497 |
|
---|
498 | $doc_obj->add_metadata ($section, "AudioType", $atype);
|
---|
499 | $doc_obj->add_metadata ($section, "AudioFreq", $afreq);
|
---|
500 | $doc_obj->add_metadata ($section, "AudioChannels", $achan);
|
---|
501 | $doc_obj->add_metadata ($section, "AudioRate", $arate);
|
---|
502 |
|
---|
503 | $doc_obj->add_utf8_metadata ($section, "srclink",
|
---|
504 | "<a href=\"_httpprefix_/collect/[collection]/index/assoc/[assocfilepath]/[Video]\">");
|
---|
505 | $doc_obj->add_utf8_metadata ($section, "/srclink", "</a>");
|
---|
506 | $doc_obj->add_metadata ($section, "srcicon", "[VideoType]");
|
---|
507 |
|
---|
508 | # Add the image as an associated file
|
---|
509 | $doc_obj->associate_file($filename,$file,"video/$type",$section);
|
---|
510 |
|
---|
511 |
|
---|
512 | if ($self->{'extractkeyframes'}) {
|
---|
513 | $self->extract_keyframes($doc_obj,$originalfilename,$filename);
|
---|
514 | }
|
---|
515 |
|
---|
516 | my $streamable_regenerated = 0;
|
---|
517 |
|
---|
518 | if ($self->{'enable_streaming'}) {
|
---|
519 | $streamable_regenerated
|
---|
520 | = $self->enable_full_streaming($doc_obj,
|
---|
521 | $originalfilename,$filename,
|
---|
522 | $convertto_regenerated,
|
---|
523 | $video_width,$video_height);
|
---|
524 | }
|
---|
525 |
|
---|
526 |
|
---|
527 | my $thumbnailsize = $self->{'thumbnailsize'} || 100;
|
---|
528 | my $thumbnailtype = $self->{'thumbnailtype'} || 'jpg';
|
---|
529 |
|
---|
530 |
|
---|
531 | if ($self->{'create_thumbnail'} eq "true") {
|
---|
532 |
|
---|
533 | my $thumbnail_width;
|
---|
534 | my $thumbnail_height;
|
---|
535 |
|
---|
536 | if ($video_width>$video_height) {
|
---|
537 | my $scale_ratio = $video_height / $video_width;
|
---|
538 | $thumbnail_width = $thumbnailsize;
|
---|
539 | $thumbnail_height = int($thumbnailsize * $scale_ratio);
|
---|
540 | }
|
---|
541 | else {
|
---|
542 | my $scale_ratio = $video_width / $video_height;
|
---|
543 | $thumbnail_width = int($thumbnailsize * $scale_ratio);
|
---|
544 | $thumbnail_height = $thumbnailsize;
|
---|
545 | }
|
---|
546 |
|
---|
547 | # for some video formats, extracted size needs to be multiple of 2
|
---|
548 | $thumbnail_width = int($thumbnail_width/2) * 2;
|
---|
549 | $thumbnail_height = int($thumbnail_height/2) * 2;
|
---|
550 |
|
---|
551 | $self->extract_thumbnail($doc_obj,$filename,$convertto_regenerated,
|
---|
552 | $thumbnailtype,
|
---|
553 | $thumbnail_width,$thumbnail_height);
|
---|
554 | }
|
---|
555 |
|
---|
556 |
|
---|
557 | if ($self->{'extractkeyframes'}) {
|
---|
558 | $self->extract_keyframes_montage($doc_obj,$filename,$thumbnailtype);
|
---|
559 | }
|
---|
560 |
|
---|
561 | my $screenviewsize = $self->{'screenviewsize'};
|
---|
562 | my $screenviewtype = $self->{'screenviewtype'} || 'jpeg';
|
---|
563 |
|
---|
564 | # Make a screen-sized version of the picture if requested
|
---|
565 | if ($self->{'create_screenview'} eq "true") {
|
---|
566 |
|
---|
567 | # To do: if the actual image smaller than the screenview size,
|
---|
568 | # we should use the original !
|
---|
569 |
|
---|
570 | my $screenview_width;
|
---|
571 | my $screenview_height;
|
---|
572 |
|
---|
573 | if ($video_width>$video_height) {
|
---|
574 | my $scale_ratio = $video_height / $video_width;
|
---|
575 | $screenview_width = $screenviewsize;
|
---|
576 | $screenview_height = int($screenviewsize * $scale_ratio);
|
---|
577 | }
|
---|
578 | else {
|
---|
579 | my $scale_ratio = $video_width / $video_height;
|
---|
580 | $screenview_width = int($screenviewsize * $scale_ratio);
|
---|
581 | $screenview_height = $screenviewsize;
|
---|
582 | }
|
---|
583 |
|
---|
584 |
|
---|
585 | # for some video formats, extracted size needs to be multiple of 2
|
---|
586 | $screenview_width = int($screenview_width/2) * 2;
|
---|
587 | $screenview_height = int($screenview_height/2) * 2;
|
---|
588 |
|
---|
589 | $self->extract_screenview($doc_obj,$filename,
|
---|
590 | $screenviewtype,
|
---|
591 | $screenview_width,$screenview_height);
|
---|
592 | }
|
---|
593 |
|
---|
594 | return $type;
|
---|
595 | }
|
---|
596 |
|
---|
597 |
|
---|
598 |
|
---|
599 |
|
---|
600 | sub read_into_doc_obj {
|
---|
601 | my $self = shift (@_);
|
---|
602 | my ($pluginfo, $base_dir, $file, $block_hash, $metadata, $processor, $maxdocs, $total_count, $gli) = @_;
|
---|
603 |
|
---|
604 | my ($rv,$doc_obj) = $self->SUPER::read_into_doc_obj(@_);
|
---|
605 |
|
---|
606 | if ($rv != 1) {
|
---|
607 | return ($rv,$doc_obj);
|
---|
608 | }
|
---|
609 |
|
---|
610 |
|
---|
611 | if (($self->{'enablestreaming'}) && ($self->{'extractkeyframes'})) {
|
---|
612 | my $section = $doc_obj->get_top_section();
|
---|
613 | my $oflash_filename = $self->{'oflash_filename'};
|
---|
614 | my ($streamkeyframes_cmd,$ostreamkeyframes_filename)
|
---|
615 | = $self->streamkeyframes_cmd($oflash_filename,$doc_obj,$section);
|
---|
616 |
|
---|
617 | my $verbosity = $self->{'verbosity'};
|
---|
618 |
|
---|
619 | my $streamkeyframes_options = { @{$self->{'flvtool2_monitor'}},
|
---|
620 | 'message_prefix' => "Stream Keyframes",
|
---|
621 | 'message' => "Reprocessing video stream to add keyframes on timeline" };
|
---|
622 |
|
---|
623 | $self->run_general_cmd($streamkeyframes_cmd,$streamkeyframes_options);
|
---|
624 | }
|
---|
625 |
|
---|
626 | return ($rv,$doc_obj);
|
---|
627 | }
|
---|
628 |
|
---|
629 |
|
---|
630 |
|
---|
631 |
|
---|
632 | sub output_distributed_keyframes
|
---|
633 | {
|
---|
634 | my ($self) = shift @_;
|
---|
635 | my ($timeline,$num_dist_frames) = @_;
|
---|
636 |
|
---|
637 | my $num_total_frames = $self->{'num-total-frames'};
|
---|
638 |
|
---|
639 | my $frame_delta = $num_total_frames/$num_dist_frames;
|
---|
640 |
|
---|
641 | my $closest_to = $frame_delta;
|
---|
642 | my $prev_t = 0;
|
---|
643 |
|
---|
644 | # print STDERR "*** num total frames = $num_total_frames\n";
|
---|
645 | # print STDERR "*** frame delta = $frame_delta\n";
|
---|
646 |
|
---|
647 | foreach my $curr_t (sort { $a <=> $b } keys %$timeline)
|
---|
648 | {
|
---|
649 | # print STDERR "*** curr_t = $curr_t\n";
|
---|
650 |
|
---|
651 | if ($curr_t>$closest_to) {
|
---|
652 | # decide if previous t (prev_t_ or current t (curr_t) is closest
|
---|
653 |
|
---|
654 | my $timeline_rec;
|
---|
655 |
|
---|
656 | my $prev_t_dist = $closest_to - $prev_t;
|
---|
657 | my $curr_t_dist = $curr_t - $closest_to;
|
---|
658 |
|
---|
659 | if ($curr_t_dist <= $prev_t_dist)
|
---|
660 | {
|
---|
661 | $timeline_rec = $timeline->{$curr_t}
|
---|
662 | }
|
---|
663 | else
|
---|
664 | {
|
---|
665 | $timeline_rec = $timeline->{$prev_t}
|
---|
666 | }
|
---|
667 |
|
---|
668 | my $name = $timeline_rec->{'name'};
|
---|
669 | my $timestamp = $timeline_rec->{'timestamp'};
|
---|
670 | my $thumb = $timeline_rec->{'thumb'};
|
---|
671 |
|
---|
672 |
|
---|
673 | print CUEOUT " <metatag event=\"onCuePoint\" overwrite=\"true\">\n";
|
---|
674 | print CUEOUT " <name>$name</name>\n";
|
---|
675 | print CUEOUT " <timestamp>$timestamp</timestamp>\n";
|
---|
676 | print CUEOUT " <parameters>\n";
|
---|
677 | print CUEOUT " <thumb>$thumb</thumb>\n";
|
---|
678 | print CUEOUT " </parameters>\n";
|
---|
679 | print CUEOUT " <type>navigation</type>\n";
|
---|
680 | print CUEOUT " </metatag>\n";
|
---|
681 |
|
---|
682 | # my $testtime = $timestamp+1000;
|
---|
683 | # print CUEOUT " <metatag event=\"onCuePoint\" overwrite=\"true\">\n";
|
---|
684 | # print CUEOUT " <name>Test $name</name>\n";
|
---|
685 | # print CUEOUT " <timestamp>$testtime</timestamp>\n";
|
---|
686 | # print CUEOUT " <parameters>\n";
|
---|
687 | # print CUEOUT " <thumb>$thumb</thumb>\n";
|
---|
688 | # print CUEOUT " <secnum>1</secnum>\n";
|
---|
689 | # print CUEOUT " <subsecnum>0</subsecnum>\n";
|
---|
690 | # print CUEOUT " </parameters>\n";
|
---|
691 | # print CUEOUT " <type>event</type>\n";
|
---|
692 | # print CUEOUT " </metatag>\n";
|
---|
693 |
|
---|
694 | $closest_to += $frame_delta;
|
---|
695 | }
|
---|
696 | $prev_t = $curr_t;
|
---|
697 | }
|
---|
698 | }
|
---|
699 |
|
---|
700 |
|
---|
701 | sub StartDocument {$_[0]->{'PluginObj'}->xml_start_document(@_);}
|
---|
702 | sub XMLDecl {$_[0]->{'PluginObj'}->xml_xmldecl(@_);}
|
---|
703 | sub Entity {$_[0]->{'PluginObj'}->xml_entity(@_);}
|
---|
704 | sub Doctype {$_[0]->{'PluginObj'}->xml_doctype(@_);}
|
---|
705 | sub StartTag {$_[0]->{'PluginObj'}->xml_start_tag(@_);}
|
---|
706 | sub EndTag {$_[0]->{'PluginObj'}->xml_end_tag(@_);}
|
---|
707 | sub Text {$_[0]->{'PluginObj'}->xml_text(@_);}
|
---|
708 | sub PI {$_[0]->{'PluginObj'}->xml_pi(@_);}
|
---|
709 | sub EndDocument {$_[0]->{'PluginObj'}->xml_end_document(@_);}
|
---|
710 | sub Default {$_[0]->{'PluginObj'}->xml_default(@_);}
|
---|
711 |
|
---|
712 |
|
---|
713 | # This Char function overrides the one in XML::Parser::Stream to overcome a
|
---|
714 | # problem where $expat->{Text} is treated as the return value, slowing
|
---|
715 | # things down significantly in some cases.
|
---|
716 | sub Char {
|
---|
717 | use bytes; # Necessary to prevent encoding issues with XML::Parser 2.31+
|
---|
718 | $_[0]->{'Text'} .= $_[1];
|
---|
719 | return undef;
|
---|
720 | }
|
---|
721 |
|
---|
722 | sub xml_start_document {
|
---|
723 | my $self = shift(@_);
|
---|
724 | my ($expat, $name, $sysid, $pubid, $internal) = @_;
|
---|
725 |
|
---|
726 | }
|
---|
727 |
|
---|
728 | # Called for XML declarations
|
---|
729 | sub xml_xmldecl {
|
---|
730 | my $self = shift(@_);
|
---|
731 | my ($expat, $version, $encoding, $standalone) = @_;
|
---|
732 | }
|
---|
733 |
|
---|
734 | # Called for XML entities
|
---|
735 | sub xml_entity {
|
---|
736 | my $self = shift(@_);
|
---|
737 | my ($expat, $name, $val, $sysid, $pubid, $ndata) = @_;
|
---|
738 | }
|
---|
739 |
|
---|
740 |
|
---|
741 | # Called for DOCTYPE declarations - use die to bail out if this doctype
|
---|
742 | # is not meant for this plugin
|
---|
743 | sub xml_doctype {
|
---|
744 | my $self = shift(@_);
|
---|
745 | my ($expat, $name, $sysid, $pubid, $internal) = @_;
|
---|
746 |
|
---|
747 | # This test used to be done in xml_start_document
|
---|
748 | # Moved to here as seems more logical
|
---|
749 |
|
---|
750 | if ($name !~ "seg") {
|
---|
751 | die "VideoPlugin: Root tag $name does not match expected <seg>";
|
---|
752 | }
|
---|
753 | }
|
---|
754 |
|
---|
755 |
|
---|
756 | sub xml_start_tag {
|
---|
757 | my $self = shift(@_);
|
---|
758 | my ($expat, $element) = @_;
|
---|
759 |
|
---|
760 | my %attr = %_;
|
---|
761 |
|
---|
762 | if ($element eq "seg") {
|
---|
763 | $self->{'keyframe_index'} = 0;
|
---|
764 | $self->{'keyframe_fnames'} = [];
|
---|
765 | $self->{'keyframe_timeline'} = {};
|
---|
766 |
|
---|
767 | #$self->{'flowplayer_thumblist'} = "thumbs: \\[";
|
---|
768 |
|
---|
769 | my $output_dir = $self->{'cached_dir'};
|
---|
770 | my $cue_filename = &util::filename_cat($output_dir,"on_cue.xml");
|
---|
771 |
|
---|
772 | open(CUEOUT,">$cue_filename")
|
---|
773 | || die "Unable to open $cue_filename: $!\n";
|
---|
774 | print CUEOUT "<tags>\n";
|
---|
775 | }
|
---|
776 | elsif ($element eq "trans") {
|
---|
777 | my $trans_type = $attr{'type'};
|
---|
778 | my $pre_frame_num = $attr{'preFNum'};
|
---|
779 | my $post_frame_num = $attr{'postFNum'};
|
---|
780 |
|
---|
781 | my $avg_frame_num = int(($pre_frame_num+$post_frame_num)/2.0)+1;
|
---|
782 |
|
---|
783 | my $output_dir = $self->{'cached_dir'};
|
---|
784 | my $ivideo_root = $self->{'cached_file_root'};
|
---|
785 |
|
---|
786 | my $keyframe_index = $self->{'keyframe_index'};
|
---|
787 |
|
---|
788 | my $fps = $self->{'video-fps'};
|
---|
789 |
|
---|
790 | if ($keyframe_index==0)
|
---|
791 | {
|
---|
792 | # hive actually generates one extra keyframe at the start,
|
---|
793 | # which is half way between frame 0 and the frist pre_frame
|
---|
794 |
|
---|
795 | my $thumb_file = sprintf("%s_%04d.jpg",$ivideo_root,$keyframe_index);
|
---|
796 | my $thumb_filename = &util::filename_cat($output_dir,$thumb_file);
|
---|
797 | push(@{$self->{'keyframe_fnames'}},$thumb_file);
|
---|
798 |
|
---|
799 | my $half_frame_num = $pre_frame_num/2.0;
|
---|
800 | my $time_msec = ($half_frame_num / $fps) * 1000;
|
---|
801 |
|
---|
802 | # print CUEOUT " <metatag event=\"onCuePoint\" overwrite=\"true\">\n";
|
---|
803 | # print CUEOUT " <name>Keyframe $keyframe_index</name>\n";
|
---|
804 | # print CUEOUT " <timestamp>$time_msec</timestamp>\n";
|
---|
805 | # print CUEOUT " <parameters>\n";
|
---|
806 | # print CUEOUT " <thumb>$thumb_file</thumb>\n";
|
---|
807 | # print CUEOUT " </parameters>\n";
|
---|
808 | # print CUEOUT " <type>navigation</type>\n";
|
---|
809 | # print CUEOUT " </metatag>\n";
|
---|
810 |
|
---|
811 |
|
---|
812 | my $timeline_rec = { 'name'=> "Keyframe $keyframe_index",
|
---|
813 | 'keyframeindex' => $keyframe_index,
|
---|
814 | 'timestamp' => $time_msec,
|
---|
815 | 'thumb' => $thumb_file };
|
---|
816 |
|
---|
817 | $self->{'keyframe_timeline'}->{$half_frame_num}=$timeline_rec;
|
---|
818 |
|
---|
819 | }
|
---|
820 |
|
---|
821 | $keyframe_index++;
|
---|
822 |
|
---|
823 | my $thumb_file = sprintf("%s_%04d.jpg",$ivideo_root,$keyframe_index);
|
---|
824 | my $thumb_filename = &util::filename_cat($output_dir,$thumb_file);
|
---|
825 | push(@{$self->{'keyframe_fnames'}},$thumb_file);
|
---|
826 |
|
---|
827 | my $time_msec = (($avg_frame_num) / $fps) * 1000;
|
---|
828 | my $time_sec = (($avg_frame_num)/ $fps);
|
---|
829 |
|
---|
830 | # print CUEOUT " <metatag event=\"onCuePoint\" overwrite=\"true\">\n";
|
---|
831 | # print CUEOUT " <name>Keyframe $keyframe_index</name>\n";
|
---|
832 | # print CUEOUT " <timestamp>$time_msec</timestamp>\n";
|
---|
833 | # print CUEOUT " <parameters>\n";
|
---|
834 | # print CUEOUT " <thumb>$thumb_file</thumb>\n";
|
---|
835 | # print CUEOUT " </parameters>\n";
|
---|
836 | # print CUEOUT " <type>navigation</type>\n";
|
---|
837 | # print CUEOUT " </metatag>\n";
|
---|
838 |
|
---|
839 |
|
---|
840 | my $timeline_rec = { 'name'=> "Keyframe $keyframe_index",
|
---|
841 | 'keyframeindex' => $keyframe_index,
|
---|
842 | 'timestamp' => $time_msec,
|
---|
843 | 'thumb' => $thumb_file };
|
---|
844 |
|
---|
845 | $self->{'keyframe_timeline'}->{$avg_frame_num}=$timeline_rec;
|
---|
846 |
|
---|
847 |
|
---|
848 | # $self->{'flowplayer_thumblist'} .= "\\{ thumbNail: '$thumb_file', time: $time_sec \\},";
|
---|
849 |
|
---|
850 | $self->{'keyframe_index'} = $keyframe_index;
|
---|
851 | }
|
---|
852 | }
|
---|
853 |
|
---|
854 | sub xml_end_tag {
|
---|
855 | my $self = shift(@_);
|
---|
856 | my ($expat, $element) = @_;
|
---|
857 |
|
---|
858 | if ($element eq "seg") {
|
---|
859 |
|
---|
860 | $self->output_distributed_keyframes($self->{'keyframe_timeline'},6);
|
---|
861 |
|
---|
862 |
|
---|
863 | print CUEOUT "</tags>\n";
|
---|
864 | close(CUEOUT);
|
---|
865 |
|
---|
866 | #$self->{'flowplayer_thumblist'} .= "\\]";
|
---|
867 | }
|
---|
868 | }
|
---|
869 |
|
---|
870 |
|
---|
871 |
|
---|
872 |
|
---|
873 |
|
---|
874 | # Called just before start or end tags with accumulated non-markup text in
|
---|
875 | # the $_ variable.
|
---|
876 | sub xml_text {
|
---|
877 | my $self = shift(@_);
|
---|
878 | my ($expat) = @_;
|
---|
879 | }
|
---|
880 |
|
---|
881 | # Called for processing instructions. The $_ variable will contain a copy
|
---|
882 | # of the pi.
|
---|
883 | sub xml_pi {
|
---|
884 | my $self = shift(@_);
|
---|
885 | my ($expat, $target, $data) = @_;
|
---|
886 | }
|
---|
887 |
|
---|
888 | # Called at the end of the XML document.
|
---|
889 | sub xml_end_document {
|
---|
890 | my $self = shift(@_);
|
---|
891 | my ($expat) = @_;
|
---|
892 |
|
---|
893 | # ****
|
---|
894 | # $self->close_document();
|
---|
895 | }
|
---|
896 |
|
---|
897 |
|
---|
898 | # Called for any characters not handled by the above functions.
|
---|
899 | sub xml_default {
|
---|
900 | my $self = shift(@_);
|
---|
901 | my ($expat, $text) = @_;
|
---|
902 | }
|
---|
903 |
|
---|
904 |
|
---|
905 | 1;
|
---|
906 |
|
---|
907 |
|
---|
908 |
|
---|
909 |
|
---|
910 |
|
---|
911 |
|
---|
912 |
|
---|
913 |
|
---|
914 |
|
---|
915 |
|
---|
916 |
|
---|