API:EPrints/Plugin/Convert/Thumbnails - Revision history

https://wiki.ext-9.eprints-hosting.org/w/index.php?action=history&feed=atom&title=API%3AEPrints%2FPlugin%2FConvert%2FThumbnails API:EPrints/Plugin/Convert/Thumbnails - Revision history 2026-05-10T04:31:30Z Revision history for this page on the wiki MediaWiki 1.43.6 https://wiki.ext-9.eprints-hosting.org/w/index.php?title=API:EPrints/Plugin/Convert/Thumbnails&diff=10705&oldid=prev Tdb01r at 09:56, 22 January 2013 2013-01-22T09:56:48Z

<p></p> <a href="https://wiki.ext-9.eprints-hosting.org/w/index.php?title=API:EPrints/Plugin/Convert/Thumbnails&diff=10705&oldid=10652">Show changes</a>

Tdb01r https://wiki.ext-9.eprints-hosting.org/w/index.php?title=API:EPrints/Plugin/Convert/Thumbnails&diff=10652&oldid=prev Libjlrs@leeds.ac.uk at 16:24, 30 October 2012 2012-10-30T16:24:48Z

<p></p> <table style="background-color: #fff; color: #202122;" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="en-GB"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 16:24, 30 October 2012</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l9">Line 9:</td> <td colspan="2" class="diff-lineno">Line 9:</td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div></div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div></div></td></tr> <tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>The Thumbnail How-to may also be useful: [How to customise thumbnails]</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>The Thumbnail How-to may also be useful: <ins style="font-weight: bold; text-decoration: none;">[</ins>[How to customise thumbnails<ins style="font-weight: bold; text-decoration: none;">]</ins>]</div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div></div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div></div></td></tr> </table>

Libjlrs@leeds.ac.uk https://wiki.ext-9.eprints-hosting.org/w/index.php?title=API:EPrints/Plugin/Convert/Thumbnails&diff=10651&oldid=prev Libjlrs@leeds.ac.uk: Add link to new page for customising thumbnails 2012-10-30T16:23:58Z

<p>Add link to new page for customising thumbnails</p> <table style="background-color: #fff; color: #202122;" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="en-GB"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 16:23, 30 October 2012</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l9">Line 9:</td> <td colspan="2" class="diff-lineno">Line 9:</td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div></div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div></div></td></tr> <tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div> </div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">The Thumbnail How-to may also be useful: [How to customise thumbnails]</ins></div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div></div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div></div></td></tr> </table>

Libjlrs@leeds.ac.uk https://wiki.ext-9.eprints-hosting.org/w/index.php?title=API:EPrints/Plugin/Convert/Thumbnails&diff=10283&oldid=prev Tdb01r at 13:40, 6 March 2012 2012-03-06T13:40:27Z

<p></p> <table style="background-color: #fff; color: #202122;" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="en-GB"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 13:40, 6 March 2012</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l6">Line 6:</td> <td colspan="2" class="diff-lineno">Line 6:</td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div></div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div></div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>==NAME==</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>==NAME==</div></td></tr> <tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>EPrints::Plugin::Convert::Thumbnails - audio <del style="font-weight: bold; text-decoration: none;">visual thumbnailing</del></div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>EPrints::Plugin::Convert::Thumbnails - <ins style="font-weight: bold; text-decoration: none;">thumbnail-sized versions of </ins>audio<ins style="font-weight: bold; text-decoration: none;">/video/images</ins></div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div></div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div></div></td></tr> <tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l20">Line 20:</td> <td colspan="2" class="diff-lineno">Line 20:</td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> # disable video previews</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> # disable video previews</div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> $c-&gt;{plugins}-&gt;{'Convert::Thumbnails'}-&gt;{params}-&gt;{video} = 0;</pre></div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> $c-&gt;{plugins}-&gt;{'Convert::Thumbnails'}-&gt;{params}-&gt;{video} = 0;</pre></div></td></tr> <tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;"></ins></div></td></tr> <tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;"><pre> # enable audio_*/video_* previews</ins></div></td></tr> <tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;"> $c-&gt;{thumbnail_types} = sub {</ins></div></td></tr> <tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;"> my( $list, $repo, $doc ) = @_;</pre></ins></div></td></tr> <tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;"></ins></div></td></tr> <tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;"><pre> push @$list, qw( audio_mp4 audio_ogg video_mp4 video_ogg );</ins></div></td></tr> <tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;"> };</pre></ins></div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div><pre> ...</pre></div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div><pre> ...</pre></div></td></tr> </table>

Tdb01r https://wiki.ext-9.eprints-hosting.org/w/index.php?title=API:EPrints/Plugin/Convert/Thumbnails&diff=10280&oldid=prev Tdb01r: Created page with '<!-- Pod2Wiki=_preamble_ This page has been automatically generated from the EPrints 3.2 source. Any wiki changes made between the 'Pod2Wiki=*' and 'Edit below this comment' com…' 2012-03-05T12:24:47Z

<p>Created page with '{{API}}{{Pod2Wiki}}{{API:Source|file=perl_lib/EPrints/Plugin/Convert/Thumbnails.pm|package_name=EPrints::Plugin::Convert::Thumbnails}}[[Category:API|THUMBNAILS]][[Category:API:EPrints/Plugin/Convert|THUMBNAILS]][[Category:API:EPrints/Plugin/Convert/Thumbnails|THUMBNAILS]]<div><br /> <br /> <br /> <br /> ==NAME==<br /> EPrints::Plugin::Convert::Thumbnails - audio visual thumbnailing<br /> <br /> <br /> <br /> <br /> <br /> <br /> ==SYNOPSIS==<br /> <pre> use EPrints;</pre><br /> <br /> <pre> # enable audio previews<br /> $c-&gt;{plugins}-&gt;{'Convert::Thumbnails'}-&gt;{params}-&gt;{audio} = 1;<br /> # disable video previews<br /> $c-&gt;{plugins}-&gt;{'Convert::Thumbnails'}-&gt;{params}-&gt;{video} = 0;</pre><br /> <br /> <pre> ...</pre><br /> <br /> <pre> my $plugin = $session-&gt;plugin( "Convert" );<br /> my %available = $plugin-&gt;can_convert( $doc );<br /> $plugin = $available{"thumbnail_video"}-&gt;{plugin};<br /> $new_doc = $plugin-&gt;convert( $doc, "thumbnail_video" );</pre><br /> <br /> <pre></pre><br /> <br /> <br /> <br /> <br /> <br /> <br /> ==DESCRIPTION==<br /> Conversion of images, videos and audio into preview/thumbnail versions.<br /> <br /> This plugin wraps the ImageMagick <em>convert</em> and <em>ffmpeg</em> tools.<br /> <br /> <br /> <br /> <br /> <br /> <br /> ==PARAMETERS==<br /> These parameters can be set through the '''plugins.pl''' configuration file. You must also configure the '''executables''' locations for <em>convert</em> and <em>ffmpeg</em> in [[API:EPrints/SystemSettings|EPrints::SystemSettings]].<br /> <br /> <br /> <br /> <br /> <br /> <br /> ===convert_formats = { ext =&gt; mime_type }===<br /> <br /> Define the formats supported for input by the call_convert() method.<br /> <br /> <br /> <br /> <br /> <br /> <br /> ===ffmpeg_formats = { ext =&gt; mime_type }===<br /> <br /> Define the formats supported for input by the call_ffmpeg() method.<br /> <br /> <br /> <br /> <br /> <br /> <br /> ===sizes = { size =&gt; [$w, $h] }===<br /> <br /> Define the size of thumbnails that can be generated e.g. "small =&gt; [66,50]". The image dimensions generated may be smaller than those specified if the aspect ratio of the source document is different.<br /> <br /> Images are output in 8-bit paletted PNG.<br /> <br /> <br /> <br /> <br /> <br /> <br /> ===video = 1===<br /> <br /> Enable video previews.<br /> <br /> <br /> <br /> <br /> <br /> <br /> ===audio = 1===<br /> <br /> Enable audio previews.<br /> <br /> <br /> <br /> <br /> <br /> <br /> ===video_height = "480"===<br /> <br /> Video preview vertical lines.<br /> <br /> <br /> <br /> <br /> <br /> <br /> ===audio_sampling = "44100"===<br /> <br /> Audio frequency sampling rate in Hz.<br /> <br /> <br /> <br /> <br /> <br /> <br /> ===audio_bitrate = "96k"===<br /> <br /> Audio bit rate in kb/s<br /> <br /> <br /> <br /> <br /> <br /> <br /> ===audio_codec = "libfaac"===<br /> <br /> <em>ffmpeg</em> compiled-in AAC codec name.<br /> <br /> <br /> <br /> <br /> <br /> <br /> ===frame_rate = "10.00"===<br /> <br /> Video frame rate in fps.<br /> <br /> <br /> <br /> <br /> <br /> <br /> ===video_codec = "h264"===<br /> <br /> <em>ffmpeg</em> compiled-in H.264 codec name (may be libx264 on some platforms).<br /> <br /> <br /> <br /> <br /> <br /> <br /> ===video_rate = "1500k"===<br /> <br /> Video bit rate in kilobits.<br /> <br /> <br /> <br /> <br /> <br /> <br /> ===call_convert = sub( $plugin, $dst, $doc, $src, $geom, $size )===<br /> <br /> See [[API:EPrints/Plugin/Convert/Thumbnails#call_convert|call_convert]].<br /> <br /> <br /> <br /> <br /> <br /> <br /> ===call_ffmpeg = sub( $plugin, $dst, $doc, $src, $geom, $size, $offset )===<br /> <br /> See [[API:EPrints/Plugin/Convert/Thumbnails#call_ffmpeg|call_ffmpeg]].<br /> <br /> <br /> <br /> <br /> <br /> <br /> ==METHODS==<br /> <br /> <br /> <br /> <br /> <br /> ===can_convert===<br /> <br /> <source lang="perl">%types = $plugin->can_convert( $doc )<br /> <br /> </source><br /> Returns a hash map of types this plugin can convert $doc to.<br /> <br /> This may be relatively expensive to do if the plugin has to call an external tool to determine if it can export something.<br /> <br /> <br /> <br /> <br /> <br /> <br /> ===convert===<br /> <br /> <source lang="perl">$new_doc = $plugin->convert( $eprint, $doc, $type )<br /> <br /> </source><br /> Request the plugin converts $doc to $type, as returned by [[API:EPrints/Plugin/Convert/Thumbnails#can_convert|can_convert]].<br /> <br /> <br /> <br /> <br /> <br /> <br /> ===export===<br /> <br /> <source lang="perl">@filelist = $plugin->export( $dir, $doc, $type )<br /> <br /> </source><br /> Request the plugin converts $doc to $type, as returned by [[API:EPrints/Plugin/Convert/Thumbnails#can_convert|can_convert]]. Outputs the resulting files to $dir and returns their paths (excluding the leading $dir part).<br /> <br /> <br /> <br /> <br /> <br /> <br /> ===Utility Methods===<br /> <br /> <br /> <br /> <br /> <br /> ====convert_version====<br /> <br /> <source lang="perl">$ver = $plugin->convert_version()<br /> <br /> </source><br /> Returns the MAJOR.MINOR version of ImageMagick.<br /> <br /> Returns 0.0 if the version can not be determined.<br /> <br /> <br /> <br /> <br /> <br /> <br /> ====is_video====<br /> <br /> <source lang="perl">$ok = $plugin->is_video( $doc )<br /> <br /> </source><br /> Returns true if $doc is a video.<br /> <br /> <br /> <br /> <br /> <br /> <br /> ====intermediate====<br /> <br /> <source lang="perl">$doc = $plugin->intermediate( $doc, $src, $geom, $src )<br /> <br /> </source><br /> Attempt to find an intermediate document that we can use to convert from (e.g. make a thumbnail from a preview version).<br /> <br /> Returns the original $doc if not intermediate is found.<br /> <br /> <br /> <br /> <br /> <br /> <br /> ====call_convert====<br /> <br /> <source lang="perl">$plugin->call_convert( $dst, $doc, $src, $geom, $size )<br /> <br /> </source><br /> Calls the ImageMagick <em>convert</em> tool to convert $doc into a thumbnail image. Writes the image to $dst. $src is the full path to the main file from $doc. The resulting image should not exceed $geom dimensions ([w,h] array ref).<br /> <br /> $size is the thumbnail-defined size (as-in the keys to the '''sizes''' parameter).<br /> <br /> This method can be overridden with the '''call_convert''' parameter.<br /> <br /> <br /> <br /> <br /> <br /> <br /> ====call_ffmpeg====<br /> <br /> <source lang="perl">$plugin->call_ffmpeg( $dst, $doc, $src, $geom, $size, $offset )<br /> <br /> </source><br /> Uses the <em>ffmpeg</em> tool to do the image conversion of $doc. $dst is the filename to write to, $src is the filename to read from and $geom is the image dimensions to write.<br /> <br /> $size is the thumbnail-defined size (as-in the keys to the '''sizes''' parameter or '''audio''' or '''video''').<br /> <br /> $offset is the time offset to extract (for '''audio'''/'''video'''). It is an array ref of [HOUR, MINUTE, SECOND, FRAME].<br /> <br /> <br /> <br /> <br /> <br /> <br /> ====export_mp3====<br /> <br /> <source lang="perl">$plugin->export_mp3( $dst, $doc, $src, $rate )<br /> <br /> </source><br /> Export $src to $dst in MP3 format at sampling rate $rate.<br /> <br /> <br /> <br /> <br /> <br /> <br /> ====export_audio====<br /> <br /> <source lang="perl">$plugin->export_audio( $dst, $doc, $src, $container )<br /> <br /> </source><br /> Export audio-only $src to $dst in $container format.<br /> <br /> Audio is encoded as <em>audio_codec</em>.<br /> <br /> <br /> <br /> <br /> <br /> <br /> ====export_video====<br /> <br /> <source lang="perl">$plugin->export_video( $dst, $doc, $src, $container )<br /> <br /> </source><br /> Export audio and video $src to $dst in $container format with vertical lines $lines maintaining aspect ratio.<br /> <br /> Video is encoded as <em>video_codec</em>.<br /> <br /> Audio is encoded as <em>audio_codec</em>.<br /> <br /> <br /> <br /> <br /> <br /> <br /> ====export_cell====<br /> <br /> <source lang="perl">$plugin->export_cell( $dir, $doc, $src, $geom, $size, $offset )<br /> <br /> </source><br /> Export $src to $dst in JPG format in dimensions $geom from offset $offset.<br /> <br /> <br /> <br /> <br /> <br /> <br /> ====calculate_offset====<br /> <br /> <source lang="perl">$secs = $plugin->calculate_offset( $duration, $offset )<br /> <br /> </source><br /> Translates a seconds or percentage offset into seconds from the start time. If the resulting time is greater than $duration returns $duration.<br /> <br /> To specify seconds either use just a number (1234) or append 's' (1234s).<br /> <br /> To specify a percentage of $duration append '%' (52%).<br /> <br /> <br /> <br /> <br /> <br /> <br /> ==SEE ALSO==<br /> [[API:EPrints/Plugin|EPrints::Plugin]], [[API:EPrints/Plugin/Convert|EPrints::Plugin::Convert]].<br /> <br /> <br /> <br /> <br /> <br /> <br /> ==AUTHOR==<br /> Copyright 2009 Tim Brody &lt;tdb2@ecs.soton.ac.uk&gt;, University of Southampton, UK.<br /> <br /> This module is released under the GPLv3 license.<br /> <br /> <br /> <br /> <br /> <br /> <br /> ==COPYRIGHT==<br /> Copyright 2000-2011 University of Southampton.<br /> <br /> This file is part of EPrints http://www.eprints.org/.<br /> <br /> EPrints is free software: you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.<br /> <br /> EPrints is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.<br /> <br /> You should have received a copy of the GNU Lesser General Public License along with EPrints. If not, see http://www.gnu.org/licenses/.<br /> <br /> <br /> <br /> <br /> <br /> <br /> </div>

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