110 lines
3.0 KiB
PHP
110 lines
3.0 KiB
PHP
<?php
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/**
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* @author Georg Ehrke <georg@owncloud.com>
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* @author Georg Ehrke <georg@ownCloud.com>
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* @author Joas Schilling <nickvergessen@gmx.de>
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* @author Thomas Müller <thomas.mueller@tmit.eu>
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*
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* @copyright Copyright (c) 2015, ownCloud, Inc.
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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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class Movie extends Provider {
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public static $avconvBinary;
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public static $ffmpegBinary;
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/**
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* {@inheritDoc}
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*/
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public function getMimeType() {
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return '/video\/.*/';
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}
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/**
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* {@inheritDoc}
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*/
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public function getThumbnail($path, $maxX, $maxY, $scalingup, $fileview) {
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// TODO: use proc_open() and stream the source file ?
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$fileInfo = $fileview->getFileInfo($path);
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$useFileDirectly = (!$fileInfo->isEncrypted() && !$fileInfo->isMounted());
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if ($useFileDirectly) {
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$absPath = $fileview->getLocalFile($path);
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} else {
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$absPath = \OC_Helper::tmpFile();
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$handle = $fileview->fopen($path, 'rb');
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// we better use 5MB (1024 * 1024 * 5 = 5242880) instead of 1MB.
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// in some cases 1MB was no enough to generate thumbnail
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$firstmb = stream_get_contents($handle, 5242880);
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file_put_contents($absPath, $firstmb);
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}
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$result = $this->generateThumbNail($maxX, $maxY, $absPath, 5);
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if ($result === false) {
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$result = $this->generateThumbNail($maxX, $maxY, $absPath, 1);
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if ($result === false) {
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$result = $this->generateThumbNail($maxX, $maxY, $absPath, 0);
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}
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}
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if (!$useFileDirectly) {
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unlink($absPath);
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}
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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 $second
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* @return bool|\OC_Image
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*/
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private function generateThumbNail($maxX, $maxY, $absPath, $second) {
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$tmpPath = \OC_Helper::tmpFile();
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if (self::$avconvBinary) {
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$cmd = self::$avconvBinary . ' -an -y -ss ' . escapeshellarg($second) .
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' -i ' . escapeshellarg($absPath) .
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' -f mjpeg -vframes 1 -vsync 1 ' . escapeshellarg($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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' -s ' . escapeshellarg($maxX) . 'x' . escapeshellarg($maxY) .
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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($tmpPath);
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unlink($tmpPath);
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return $image->valid() ? $image : false;
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}
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unlink($tmpPath);
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return false;
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}
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}
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