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- <?php
- namespace OC\Preview;
- use OCP\Files\File;
- use OCP\Files\FileInfo;
- use OCP\IImage;
- use Psr\Log\LoggerInterface;
- class Movie extends ProviderV2 {
-
- public static $avconvBinary;
-
- public static $ffmpegBinary;
-
- private $binary;
-
- public function getMimeType(): string {
- return '/video\/.*/';
- }
-
- public function isAvailable(FileInfo $file): bool {
-
- if (is_null($this->binary)) {
- if (isset($this->options['movieBinary'])) {
- $this->binary = $this->options['movieBinary'];
- } elseif (is_string(self::$avconvBinary)) {
- $this->binary = self::$avconvBinary;
- } elseif (is_string(self::$ffmpegBinary)) {
- $this->binary = self::$ffmpegBinary;
- }
- }
- return is_string($this->binary);
- }
-
- public function getThumbnail(File $file, int $maxX, int $maxY): ?IImage {
-
- if (!$this->isAvailable($file)) {
- return null;
- }
- $result = null;
- if ($this->useTempFile($file)) {
-
-
-
- $sizeAttempts = [5242880, null];
- } else {
-
- $sizeAttempts = [null];
- }
- foreach ($sizeAttempts as $size) {
- $absPath = $this->getLocalFile($file, $size);
- $result = null;
- if (is_string($absPath)) {
- $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;
- }
- private function generateThumbNail(int $maxX, int $maxY, string $absPath, int $second): ?IImage {
- $tmpPath = \OC::$server->getTempManager()->getTemporaryFile();
- $binaryType = substr(strrchr($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') {
- $cmd = [$this->binary, '-y', '-ss', (string)$second,
- '-i', $absPath,
- '-f', 'mjpeg', '-vframes', '1',
- $tmpPath];
- } else {
-
- unlink($tmpPath);
- return null;
- }
- $proc = proc_open($cmd, [1 => ['pipe', 'w'], 2 => ['pipe', 'w']], $pipes);
- $returnCode = -1;
- $output = "";
- if (is_resource($proc)) {
- $stdout = trim(stream_get_contents($pipes[1]));
- $stderr = trim(stream_get_contents($pipes[2]));
- $returnCode = proc_close($proc);
- $output = $stdout . $stderr;
- }
- if ($returnCode === 0) {
- $image = new \OCP\Image();
- $image->loadFromFile($tmpPath);
- if ($image->valid()) {
- unlink($tmpPath);
- $image->scaleDownToFit($maxX, $maxY);
- return $image;
- }
- }
- if ($second === 0) {
- $logger = \OC::$server->get(LoggerInterface::class);
- $logger->info('Movie preview generation failed Output: {output}', ['app' => 'core', 'output' => $output]);
- }
- unlink($tmpPath);
- return null;
- }
- }
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