d59eb5e184
The File object now stores width and height of files that can supply this kind of information. Formats which we can not read natively in PHP do not currently benefit from this. However an event hook will be introduced later. The CreateFileImageThumbnail event is renamed to: CreateFileImageThumbnailSource to clarify that the hooks should not generate their own thumbnails but only the source image. Also it now accepts File objects, not MediaFile objects. The thumbnail generation is documented in the source code. For developers, call 'getThumbnail' on a File object and hope for the best. Default thumbnail sizes have increased to be more appealing.
91 lines
3.0 KiB
PHP
91 lines
3.0 KiB
PHP
<?php
|
|
/**
|
|
* GNU social - a federating social network
|
|
*
|
|
* Plugin to make thumbnails of video files with ffmpeg
|
|
*
|
|
* PHP version 5
|
|
*
|
|
* LICENCE: This program is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU Affero General Public License as published by
|
|
* the Free Software Foundation, either version 3 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program 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 Affero General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Affero General Public License
|
|
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*
|
|
* @category Plugin
|
|
* @package GNUsocial
|
|
* @author Mikael Nordfeldth <mmn@hethane.se>
|
|
* @copyright 2014 Free Software Foundation http://fsf.org
|
|
* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
|
|
* @link https://www.gnu.org/software/social/
|
|
*/
|
|
|
|
if (!defined('GNUSOCIAL')) { exit(1); }
|
|
|
|
/*
|
|
* Dependencies:
|
|
* php5-ffmpeg
|
|
* php5-gd
|
|
*
|
|
* Video support will depend on your ffmpeg.
|
|
*/
|
|
|
|
class VideoThumbnailsPlugin extends Plugin
|
|
{
|
|
/*
|
|
* This function should only extract an image from the video stream
|
|
* and disregard any cropping or scaling in the resulting file, as
|
|
* that will be handled in the core thumbnail algorithm.
|
|
*/
|
|
public function onCreateFileImageThumbnailSource(File $file, &$imgPath, $media=null)
|
|
{
|
|
// The calling function might accidentally pass application/ogg videos.
|
|
// If that's a problem, let's fix it in the calling function.
|
|
if ($media !== 'video') {
|
|
return true;
|
|
}
|
|
|
|
$movie = new ffmpeg_movie($file->getPath(), false);
|
|
|
|
$frames = $movie->getFrameCount();
|
|
if ($frames > 0) {
|
|
$frame = $movie->getFrame(floor($frames/2));
|
|
} else {
|
|
$frame = $movie->getNextKeyFrame();
|
|
}
|
|
|
|
// We failed to get a frame.
|
|
if ($frame === null) {
|
|
return true;
|
|
}
|
|
|
|
// Let's save our frame to a temporary file. If we fail, remove it.
|
|
$imgPath = tempnam(sys_get_temp_dir(), 'socialthumb');
|
|
if (!imagejpeg($frame->toGDImage(), $imgPath)) {
|
|
@unlink($imgPath);
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
public function onPluginVersion(&$versions)
|
|
{
|
|
$versions[] = array('name' => 'Video Thumbnails',
|
|
'version' => GNUSOCIAL_VERSION,
|
|
'author' => 'Mikael Nordfeldth',
|
|
'homepage' => 'https://www.gnu.org/software/social/',
|
|
'rawdescription' =>
|
|
// TRANS: Plugin description.
|
|
_m('Video thumbnail preview support.'));
|
|
return true;
|
|
}
|
|
}
|
|
|