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-rw-r--r--lib/private/Preview/Movie.php206
1 files changed, 147 insertions, 59 deletions
diff --git a/lib/private/Preview/Movie.php b/lib/private/Preview/Movie.php
index 68157f1a87f..47895f999d8 100644
--- a/lib/private/Preview/Movie.php
+++ b/lib/private/Preview/Movie.php
@@ -1,47 +1,45 @@
<?php
+
/**
- * @copyright Copyright (c) 2016, ownCloud, Inc.
- *
- * @author Alexander A. Klimov <grandmaster@al2klimov.de>
- * @author Daniel Schneider <daniel@schneidoa.de>
- * @author Georg Ehrke <oc.list@georgehrke.com>
- * @author Joas Schilling <coding@schilljs.com>
- * @author Morris Jobke <hey@morrisjobke.de>
- * @author Olivier Paroz <github@oparoz.com>
- * @author Robin Appelman <robin@icewind.nl>
- * @author Roeland Jago Douma <roeland@famdouma.nl>
- * @author Thomas Müller <thomas.mueller@tmit.eu>
- *
- * @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/>
- *
+ * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
+ * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
+ * SPDX-License-Identifier: AGPL-3.0-only
*/
namespace OC\Preview;
use OCP\Files\File;
+use OCP\Files\FileInfo;
+use OCP\IConfig;
use OCP\IImage;
+use OCP\ITempManager;
+use OCP\Server;
+use Psr\Log\LoggerInterface;
class Movie extends ProviderV2 {
- public static $avconvBinary;
- public static $ffmpegBinary;
+ private IConfig $config;
+
+ private ?string $binary = null;
+
+ public function __construct(array $options = []) {
+ parent::__construct($options);
+ $this->config = Server::get(IConfig::class);
+ }
+
+ public function getMimeType(): string {
+ return '/video\/.*/';
+ }
/**
* {@inheritDoc}
*/
- public function getMimeType(): string {
- return '/video\/.*/';
+ public function isAvailable(FileInfo $file): bool {
+ if (is_null($this->binary)) {
+ if (isset($this->options['movieBinary'])) {
+ $this->binary = $this->options['movieBinary'];
+ }
+ }
+ return is_string($this->binary);
}
/**
@@ -50,48 +48,132 @@ class Movie extends ProviderV2 {
public function getThumbnail(File $file, int $maxX, int $maxY): ?IImage {
// TODO: use proc_open() and stream the source file ?
- $absPath = $this->getLocalFile($file, 5242880); // only use the first 5MB
+ if (!$this->isAvailable($file)) {
+ return null;
+ }
- $result = $this->generateThumbNail($maxX, $maxY, $absPath, 5);
- if ($result === null) {
- $result = $this->generateThumbNail($maxX, $maxY, $absPath, 1);
- if ($result === null) {
- $result = $this->generateThumbNail($maxX, $maxY, $absPath, 0);
+ $result = null;
+ if ($this->useTempFile($file)) {
+ // Try downloading 5 MB first, as it's likely that the first frames are present there.
+ // In some cases this doesn't work, for example when the moov atom is at the
+ // end of the file, so if it fails we fall back to getting the full file.
+ // Unless the file is not local (e.g. S3) as we do not want to download the whole (e.g. 37Gb) file
+ if ($file->getStorage()->isLocal()) {
+ $sizeAttempts = [5242880, null];
+ } else {
+ $sizeAttempts = [5242880];
}
+ } else {
+ // size is irrelevant, only attempt once
+ $sizeAttempts = [null];
}
- $this->cleanTmpFiles();
+ foreach ($sizeAttempts as $size) {
+ $absPath = $this->getLocalFile($file, $size);
+ if ($absPath === false) {
+ Server::get(LoggerInterface::class)->error(
+ 'Failed to get local file to generate thumbnail for: ' . $file->getPath(),
+ ['app' => 'core']
+ );
+ return null;
+ }
+
+ $result = $this->generateThumbNail($maxX, $maxY, $absPath, 5);
+ if ($result === null) {
+ $result = $this->generateThumbNail($maxX, $maxY, $absPath, 1);
+ if ($result === null) {
+ $result = $this->generateThumbNail($maxX, $maxY, $absPath, 0);
+ }
+ }
+
+ $this->cleanTmpFiles();
+
+ if ($result !== null) {
+ break;
+ }
+ }
return $result;
}
- /**
- * @param int $maxX
- * @param int $maxY
- * @param string $absPath
- * @param int $second
- * @return null|\OCP\IImage
- */
- private function generateThumbNail($maxX, $maxY, $absPath, $second): ?IImage {
- $tmpPath = \OC::$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';
+ private function useHdr(string $absPath): bool {
+ // load ffprobe path from configuration, otherwise generate binary path using ffmpeg binary path
+ $ffprobe_binary = $this->config->getSystemValue('preview_ffprobe_path', null) ?? (pathinfo($this->binary, PATHINFO_DIRNAME) . '/ffprobe');
+ // run ffprobe on the video file to get value of "color_transfer"
+ $test_hdr_cmd = [$ffprobe_binary,'-select_streams', 'v:0',
+ '-show_entries', 'stream=color_transfer',
+ '-of', 'default=noprint_wrappers=1:nokey=1',
+ $absPath];
+ $test_hdr_proc = proc_open($test_hdr_cmd, [1 => ['pipe', 'w'], 2 => ['pipe', 'w']], $test_hdr_pipes);
+ if ($test_hdr_proc === false) {
+ return false;
+ }
+ $test_hdr_stdout = trim(stream_get_contents($test_hdr_pipes[1]));
+ $test_hdr_stderr = trim(stream_get_contents($test_hdr_pipes[2]));
+ proc_close($test_hdr_proc);
+ // search build options for libzimg (provides zscale filter)
+ $ffmpeg_libzimg_installed = strpos($test_hdr_stderr, '--enable-libzimg');
+ // Only values of "smpte2084" and "arib-std-b67" indicate an HDR video.
+ // Only return true if video is detected as HDR and libzimg is installed.
+ if (($test_hdr_stdout === 'smpte2084' || $test_hdr_stdout === 'arib-std-b67') && $ffmpeg_libzimg_installed !== false) {
+ return true;
} else {
- $cmd = self::$ffmpegBinary . ' -y -ss ' . escapeshellarg($second) .
- ' -i ' . escapeshellarg($absPath) .
- ' -f mjpeg -vframes 1' .
- ' ' . escapeshellarg($tmpPath) .
- ' > /dev/null 2>&1';
+ return false;
+ }
+ }
+
+ private function generateThumbNail(int $maxX, int $maxY, string $absPath, int $second): ?IImage {
+ $tmpPath = Server::get(ITempManager::class)->getTemporaryFile();
+
+ if ($tmpPath === false) {
+ Server::get(LoggerInterface::class)->error(
+ 'Failed to get local file to generate thumbnail for: ' . $absPath,
+ ['app' => 'core']
+ );
+ return null;
}
- exec($cmd, $output, $returnCode);
+ $binaryType = substr(strrchr($this->binary, '/'), 1);
+
+ if ($binaryType === 'avconv') {
+ $cmd = [$this->binary, '-y', '-ss', (string)$second,
+ '-i', $absPath,
+ '-an', '-f', 'mjpeg', '-vframes', '1', '-vsync', '1',
+ $tmpPath];
+ } elseif ($binaryType === 'ffmpeg') {
+ if ($this->useHdr($absPath)) {
+ // Force colorspace to '2020_ncl' because some videos are
+ // tagged incorrectly as 'reserved' resulting in fail if not forced.
+ $cmd = [$this->binary, '-y', '-ss', (string)$second,
+ '-i', $absPath,
+ '-f', 'mjpeg', '-vframes', '1',
+ '-vf', 'zscale=min=2020_ncl:t=linear:npl=100,format=gbrpf32le,zscale=p=bt709,tonemap=tonemap=hable:desat=0,zscale=t=bt709:m=bt709:r=tv,format=yuv420p',
+ $tmpPath];
+ } else {
+ // always default to generating preview using non-HDR command
+ $cmd = [$this->binary, '-y', '-ss', (string)$second,
+ '-i', $absPath,
+ '-f', 'mjpeg', '-vframes', '1',
+ $tmpPath];
+ }
+ } else {
+ // Not supported
+ unlink($tmpPath);
+ return null;
+ }
+
+ $proc = proc_open($cmd, [1 => ['pipe', 'w'], 2 => ['pipe', 'w']], $pipes);
+ $returnCode = -1;
+ $output = '';
+ if (is_resource($proc)) {
+ $stderr = trim(stream_get_contents($pipes[2]));
+ $stdout = trim(stream_get_contents($pipes[1]));
+ $returnCode = proc_close($proc);
+ $output = $stdout . $stderr;
+ }
if ($returnCode === 0) {
- $image = new \OC_Image();
+ $image = new \OCP\Image();
$image->loadFromFile($tmpPath);
if ($image->valid()) {
unlink($tmpPath);
@@ -100,6 +182,12 @@ class Movie extends ProviderV2 {
return $image;
}
}
+
+ if ($second === 0) {
+ $logger = Server::get(LoggerInterface::class);
+ $logger->info('Movie preview generation failed Output: {output}', ['app' => 'core', 'output' => $output]);
+ }
+
unlink($tmpPath);
return null;
}
generated by cgit v1.2.3 (git 2.39.1) at 2025-08-15 21:08:20 +0000