option to strip metadata

Author: peirix

src/models/Settings.php

@@ -199,7 +199,8 @@ class Settings extends Model
         'audioBitRate' => '128k',
         'audioSampleRate' => '44100',
         'audioChannels' => '2',
-        'synchronous' => false
+        'synchronous' => false,
+        'stripMetadata' => false
     ];
     /**
      * Default options for encoded GIF

src/services/Transcode.php

@@ -387,6 +387,11 @@ public function getAudioUrl($filePath, $audioOptions): string
 
             // Assemble the destination path and final ffmpeg command
             $destAudioPath .= $destAudioFile;
+            
+            if ($audioOptions['stripMetadata']) {
+                $ffmpegCmd .= ' -map_metadata -1 ';
+            }
+            
             $ffmpegCmd .= ' -f '
                 .$thisEncoder['fileFormat']
                 .' -y '.escapeshellarg($destAudioPath);