125 lines
3.8 KiB
PHP
125 lines
3.8 KiB
PHP
<?php
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declare(strict_types = 1);
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// {{{ License
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// This file is part of GNU social - https://www.gnu.org/software/social
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//
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// GNU social is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Affero General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// GNU social is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Affero General Public License for more details.
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//
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// You should have received a copy of the GNU Affero General Public License
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// along with GNU social. If not, see <http://www.gnu.org/licenses/>.
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// }}}
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/**
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* Audio template and metadata support via PHP-FFMpeg
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*
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* @package GNUsocial
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*
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* @author Diogo Peralta Cordeiro <mail@diogo.site>
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* @copyright 2021 Free Software Foundation, Inc http://www.fsf.org
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* @license https://www.gnu.org/licenses/agpl.html GNU AGPL v3 or later
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*
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* @see http://www.gnu.org/software/social/
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*/
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namespace Plugin\AudioEncoder;
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use App\Core\Event;
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use App\Core\GSFile;
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use function App\Core\I18n\_m;
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use App\Core\Modules\Plugin;
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use App\Util\Exception\ServerException;
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use App\Util\Formatting;
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use EventResult;
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use FFMpeg\FFProbe as ffprobe;
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use SplFileInfo;
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class AudioEncoder extends Plugin
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{
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public static function version(): string
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{
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return '0.1.0';
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}
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public static function shouldHandle(string $mimetype): bool
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{
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return GSFile::mimetypeMajor($mimetype) === 'audio';
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}
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public function onFileMetaAvailable(array &$event_map, string $mimetype): EventResult
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{
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if (!self::shouldHandle($mimetype)) {
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return Event::next;
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}
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$event_map['audio'][] = [$this, 'fileMeta'];
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return Event::next;
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}
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/**
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* Adds duration metadata to audios
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*
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* @param null|string $mimetype in/out
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* @param null|int $width out audio duration
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*
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* @return bool true if metadata filled
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*/
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public function fileMeta(SplFileInfo &$file, ?string &$mimetype, ?int &$width, ?int &$height): bool
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{
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// Create FFProbe instance
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// Need to explicitly tell the drivers' location, or it won't find them
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$ffprobe = ffprobe::create([
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'ffmpeg.binaries' => exec('which ffmpeg'),
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'ffprobe.binaries' => exec('which ffprobe'),
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]);
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$metadata = $ffprobe->streams($file->getRealPath()) // extracts streams informations
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->audios() // filters audios streams
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->first(); // returns the first audio stream
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$width = (int) ceil((float) $metadata->get('duration'));
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return true;
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}
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/**
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* Generates the view for attachments of type Video
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*/
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public function onViewAttachment(array $vars, array &$res): EventResult
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{
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if (!self::shouldHandle($vars['attachment']->getMimetype())) {
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return Event::next;
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}
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$res[] = Formatting::twigRenderFile(
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'audioEncoder/audioEncoderView.html.twig',
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[
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'attachment' => $vars['attachment'],
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'note' => $vars['note'],
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'title' => $vars['title'],
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],
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);
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return Event::stop;
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}
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/**
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* @throws ServerException
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*/
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public function onPluginVersion(array &$versions): EventResult
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{
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$versions[] = [
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'name' => 'AudioEncoder',
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'version' => self::version(),
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'author' => 'Diogo Peralta Cordeiro',
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'rawdescription' => _m('Use PHP-FFMpeg for some more audio support.'),
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];
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return Event::next;
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}
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}
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