3 * GNU social - a federating social network
5 * Plugin to make thumbnails of video files with ffmpeg
9 * LICENCE: This program is free software: you can redistribute it and/or modify
10 * it under the terms of the GNU Affero General Public License as published by
11 * the Free Software Foundation, either version 3 of the License, or
12 * (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU Affero General Public License for more details.
19 * You should have received a copy of the GNU Affero General Public License
20 * along with this program. If not, see <http://www.gnu.org/licenses/>.
24 * @author Mikael Nordfeldth <mmn@hethane.se>
25 * @copyright 2014 Free Software Foundation http://fsf.org
26 * @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
27 * @link https://www.gnu.org/software/social/
30 if (!defined('GNUSOCIAL')) { exit(1); }
37 * Video support will depend on your ffmpeg.
40 class VideoThumbnailsPlugin extends Plugin
43 * This function should only extract an image from the video stream
44 * and disregard any cropping or scaling in the resulting file, as
45 * that will be handled in the core thumbnail algorithm.
47 public function onCreateFileImageThumbnailSource(File $file, &$imgPath, $media=null)
49 // The calling function might accidentally pass application/ogg videos.
50 // If that's a problem, let's fix it in the calling function.
51 if ($media !== 'video') {
55 $movie = new ffmpeg_movie($file->getPath(), false);
57 $frames = $movie->getFrameCount();
59 $frame = $movie->getFrame(floor($frames/2));
61 $frame = $movie->getNextKeyFrame();
64 // We failed to get a frame.
65 if ($frame === null) {
69 // Let's save our frame to a temporary file. If we fail, remove it.
70 $imgPath = tempnam(sys_get_temp_dir(), 'socialthumb');
71 if (!imagejpeg($frame->toGDImage(), $imgPath)) {
78 public function onPluginVersion(&$versions)
80 $versions[] = array('name' => 'Video Thumbnails',
81 'version' => GNUSOCIAL_VERSION,
82 'author' => 'Mikael Nordfeldth',
83 'homepage' => 'https://www.gnu.org/software/social/',
85 // TRANS: Plugin description.
86 _m('Video thumbnail preview support.'));