107 lines
2.9 KiB
PHP
107 lines
2.9 KiB
PHP
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<?php
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/**
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* @copyright Copyright (c) 2016, ownCloud, Inc.
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*
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* @author Alexander A. Klimov <grandmaster@al2klimov.de>
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* @author Daniel Schneider <daniel@schneidoa.de>
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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 Morris Jobke <hey@morrisjobke.de>
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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 Müller <thomas.mueller@tmit.eu>
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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 OCP\Files\File;
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use OCP\IImage;
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class Movie extends ProviderV2 {
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public static $avconvBinary;
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public static $ffmpegBinary;
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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 '/video\/.*/';
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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 $maxY): ?IImage {
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// TODO: use proc_open() and stream the source file ?
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$absPath = $this->getLocalFile($file, 5242880); // only use the first 5MB
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$result = $this->generateThumbNail($maxX, $maxY, $absPath, 5);
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if ($result === null) {
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$result = $this->generateThumbNail($maxX, $maxY, $absPath, 1);
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if ($result === null) {
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$result = $this->generateThumbNail($maxX, $maxY, $absPath, 0);
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}
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}
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$this->cleanTmpFiles();
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return $result;
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}
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/**
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* @param int $maxX
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* @param int $maxY
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* @param string $absPath
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* @param int $second
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* @return null|\OCP\IImage
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*/
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private function generateThumbNail($maxX, $maxY, $absPath, $second): ?IImage {
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$tmpPath = \OC::$server->getTempManager()->getTemporaryFile();
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if (self::$avconvBinary) {
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$cmd = self::$avconvBinary . ' -y -ss ' . escapeshellarg($second) .
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' -i ' . escapeshellarg($absPath) .
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' -an -f mjpeg -vframes 1 -vsync 1 ' . escapeshellarg($tmpPath) .
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' > /dev/null 2>&1';
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} else {
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$cmd = self::$ffmpegBinary . ' -y -ss ' . escapeshellarg($second) .
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' -i ' . escapeshellarg($absPath) .
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' -f mjpeg -vframes 1' .
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' ' . escapeshellarg($tmpPath) .
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' > /dev/null 2>&1';
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}
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exec($cmd, $output, $returnCode);
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if ($returnCode === 0) {
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$image = new \OC_Image();
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$image->loadFromFile($tmpPath);
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if ($image->valid()) {
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unlink($tmpPath);
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$image->scaleDownToFit($maxX, $maxY);
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return $image;
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}
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}
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unlink($tmpPath);
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return null;
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}
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}
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