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ef0cffc937
We use a forked version of getID3 to read embedded images from mp3 files to use them as previews. If the library is unable to extract a image or fails on something different we should handle it properly. Signed-off-by: Daniel Kesselberg <mail@danielkesselberg.de>
82 lines
2.2 KiB
PHP
82 lines
2.2 KiB
PHP
<?php
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/**
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* @copyright Copyright (c) 2016, ownCloud, Inc.
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*
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* @author Christoph Wurst <christoph@winzerhof-wurst.at>
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* @author Georg Ehrke <oc.list@georgehrke.com>
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* @author Joas Schilling <coding@schilljs.com>
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* @author Lukas Reschke <lukas@statuscode.ch>
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* @author Olivier Paroz <github@oparoz.com>
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* @author Robin Appelman <robin@icewind.nl>
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* @author Roeland Jago Douma <roeland@famdouma.nl>
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* @author Thomas Tanghus <thomas@tanghus.net>
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*
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* @license AGPL-3.0
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*
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* This code 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, version 3,
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* as published by the Free Software Foundation.
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*
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* This program 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, version 3,
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* along with this program. If not, see <http://www.gnu.org/licenses/>
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*
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*/
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namespace OC\Preview;
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use ID3Parser\ID3Parser;
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use OCP\Files\File;
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use OCP\IImage;
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use Psr\Log\LoggerInterface;
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class MP3 extends ProviderV2 {
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/**
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* {@inheritDoc}
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*/
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public function getMimeType(): string {
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return '/audio\/mpeg/';
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}
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/**
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* {@inheritDoc}
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*/
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public function getThumbnail(File $file, int $maxX, int $maxY): ?IImage {
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$getID3 = new ID3Parser();
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$tmpPath = $this->getLocalFile($file);
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try {
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$tags = $getID3->analyze($tmpPath);
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} catch (\Throwable $e) {
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\OC::$server->get(LoggerInterface::class)->info($e->getMessage(), [
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'exception' => $e,
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'app' => 'core',
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]);
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return null;
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} finally {
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$this->cleanTmpFiles();
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}
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$picture = isset($tags['id3v2']['APIC'][0]['data']) ? $tags['id3v2']['APIC'][0]['data'] : null;
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if (is_null($picture) && isset($tags['id3v2']['PIC'][0]['data'])) {
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$picture = $tags['id3v2']['PIC'][0]['data'];
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}
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if (!is_null($picture)) {
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$image = new \OCP\Image();
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$image->loadFromData($picture);
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if ($image->valid()) {
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$image->scaleDownToFit($maxX, $maxY);
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return $image;
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}
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}
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return null;
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}
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}
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