Fixed an issue where ()getFileInfo would throw an error if null was returned

Signed-off-by: Andrew Welch <andrew@nystudio107.com>

Author: khalwat

src/services/Transcode.php

@@ -425,9 +425,9 @@ public function getAudioUrl($filePath, $audioOptions): string
      * @param      $filePath
      * @param bool $summary
      *
-     * @return array
+     * @return null|array
      */
-    public function getFileInfo($filePath, $summary = false): array
+    public function getFileInfo($filePath, $summary = false)
     {
         $result = null;
         $settings = Transcoder::$plugin->getSettings();