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<title>[39187] trunk/src/wp-includes/class-wp-image-editor-imagick.php: Media: Only load first PDF page for thumbnails.</title>
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<dt style="float: left; width: 6em; font-weight: bold">Revision</dt> <dd><a style="font-weight: bold" href="https://core.trac.wordpress.org/changeset/39187">39187</a><script type="application/ld+json">{"@context":"http://schema.org","@type":"EmailMessage","description":"Review this Commit","action":{"@type":"ViewAction","url":"https://core.trac.wordpress.org/changeset/39187","name":"Review Commit"}}</script></dd>
<dt style="float: left; width: 6em; font-weight: bold">Author</dt> <dd>mikeschroder</dd>
<dt style="float: left; width: 6em; font-weight: bold">Date</dt> <dd>2016-11-09 21:04:04 +0000 (Wed, 09 Nov 2016)</dd>
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<pre style='padding-left: 1em; margin: 2em 0; border-left: 2px solid #ccc; line-height: 1.25; font-size: 105%; font-family: sans-serif'>Media: Only load first PDF page for thumbnails.
To improve performance, directly load the first page of uploaded PDFs
to reduce the total clock time necessary to generate thumbnails.
Props dglingren, lukecavanagh, helen, johnbillion, mikeschroder.
See <a href="https://core.trac.wordpress.org/ticket/38522">#38522</a>.</pre>
<h3>Modified Paths</h3>
<ul>
<li><a href="#trunksrcwpincludesclasswpimageeditorimagickphp">trunk/src/wp-includes/class-wp-image-editor-imagick.php</a></li>
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<h3>Diff</h3>
<a id="trunksrcwpincludesclasswpimageeditorimagickphp"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: trunk/src/wp-includes/class-wp-image-editor-imagick.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- trunk/src/wp-includes/class-wp-image-editor-imagick.php 2016-11-09 20:54:41 UTC (rev 39186)
+++ trunk/src/wp-includes/class-wp-image-editor-imagick.php 2016-11-09 21:04:04 UTC (rev 39187)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -147,16 +147,20 @@
</span><span class="cx" style="display: block; padding: 0 10px"> try {
</span><span class="cx" style="display: block; padding: 0 10px"> $this->image = new Imagick();
</span><span class="cx" style="display: block; padding: 0 10px"> $file_parts = pathinfo( $this->file );
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ $filename = $this->file;
</ins><span class="cx" style="display: block; padding: 0 10px">
</span><span class="cx" style="display: block; padding: 0 10px"> // By default, PDFs are rendered in a very low resolution.
</span><span class="cx" style="display: block; padding: 0 10px"> // We want the thumbnail to be readable, so increase the rendering dpi.
</span><span class="cx" style="display: block; padding: 0 10px"> if ( 'pdf' == strtolower( $file_parts['extension'] ) ) {
</span><span class="cx" style="display: block; padding: 0 10px"> $this->image->setResolution( 128, 128 );
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+
+ // Only load the first page.
+ $filename .= '[0]';
</ins><span class="cx" style="display: block; padding: 0 10px"> }
</span><span class="cx" style="display: block; padding: 0 10px">
</span><span class="cx" style="display: block; padding: 0 10px"> // Reading image after Imagick instantiation because `setResolution`
</span><span class="cx" style="display: block; padding: 0 10px"> // only applies correctly before the image is read.
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- $this->image->readImage( $this->file );
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ $this->image->readImage( $filename );
</ins><span class="cx" style="display: block; padding: 0 10px">
</span><span class="cx" style="display: block; padding: 0 10px"> if ( ! $this->image->valid() )
</span><span class="cx" style="display: block; padding: 0 10px"> return new WP_Error( 'invalid_image', __('File is not an image.'), $this->file);
</span></span></pre>
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