1 files changed, 113 insertions, 0 deletions
diff --git a/lib/private/Preview/Movie.php b/lib/private/Preview/Movie.php
new file mode 100644
index 00000000000..43a8d674fc9
--- /dev/null
+++ b/lib/private/Preview/Movie.php
@@ -0,0 +1,113 @@
+<?php
+/**
+ * @author Georg Ehrke <georg@owncloud.com>
+ * @author Joas Schilling <nickvergessen@owncloud.com>
+ * @author Morris Jobke <hey@morrisjobke.de>
+ * @author Olivier Paroz <github@oparoz.com>
+ * @author Thomas Müller <thomas.mueller@tmit.eu>
+ *
+ * @copyright Copyright (c) 2016, ownCloud, Inc.
+ * @license AGPL-3.0
+ *
+ * This code is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License, version 3,
+ * as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License, version 3,
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>
+ *
+ */
+namespace OC\Preview;
+
+class Movie extends Provider {
+	public static $avconvBinary;
+	public static $ffmpegBinary;
+
+	/**
+	 * {@inheritDoc}
+	 */
+	public function getMimeType() {
+		return '/video\/.*/';
+	}
+
+	/**
+	 * {@inheritDoc}
+	 */
+	public function getThumbnail($path, $maxX, $maxY, $scalingup, $fileview) {
+		// TODO: use proc_open() and stream the source file ?
+
+		$fileInfo = $fileview->getFileInfo($path);
+		$useFileDirectly = (!$fileInfo->isEncrypted() && !$fileInfo->isMounted());
+
+		if ($useFileDirectly) {
+			$absPath = $fileview->getLocalFile($path);
+		} else {
+			$absPath = \OC::$server->getTempManager()->getTemporaryFile();
+
+			$handle = $fileview->fopen($path, 'rb');
+
+			// we better use 5MB (1024 * 1024 * 5 = 5242880) instead of 1MB.
+			// in some cases 1MB was no enough to generate thumbnail
+			$firstmb = stream_get_contents($handle, 5242880);
+			file_put_contents($absPath, $firstmb);
+		}
+
+		$result = $this->generateThumbNail($maxX, $maxY, $absPath, 5);
+		if ($result === false) {
+			$result = $this->generateThumbNail($maxX, $maxY, $absPath, 1);
+			if ($result === false) {
+				$result = $this->generateThumbNail($maxX, $maxY, $absPath, 0);
+			}
+		}
+
+		if (!$useFileDirectly) {
+			unlink($absPath);
+		}
+
+		return $result;
+	}
+
+	/**
+	 * @param int $maxX
+	 * @param int $maxY
+	 * @param string $absPath
+	 * @param int $second
+	 * @return bool|\OCP\IImage
+	 */
+	private function generateThumbNail($maxX, $maxY, $absPath, $second) {
+		$tmpPath = \OC::$server->getTempManager()->getTemporaryFile();
+
+		if (self::$avconvBinary) {
+			$cmd = self::$avconvBinary . ' -y -ss ' . escapeshellarg($second) .
+				' -i ' . escapeshellarg($absPath) .
+				' -an -f mjpeg -vframes 1 -vsync 1 ' . escapeshellarg($tmpPath) .
+				' > /dev/null 2>&1';
+		} else {
+			$cmd = self::$ffmpegBinary . ' -y -ss ' . escapeshellarg($second) .
+				' -i ' . escapeshellarg($absPath) .
+				' -f mjpeg -vframes 1' .
+				' ' . escapeshellarg($tmpPath) .
+				' > /dev/null 2>&1';
+		}
+
+		exec($cmd, $output, $returnCode);
+
+		if ($returnCode === 0) {
+			$image = new \OC_Image();
+			$image->loadFromFile($tmpPath);
+			unlink($tmpPath);
+			if ($image->valid()) {
+				$image->scaleDownToFit($maxX, $maxY);
+
+				return $image;
+			}
+		}
+		unlink($tmpPath);
+		return false;
+	}
+}