fix access to videosm update translations

Author: tgloeggl

lib/Models/Videos.php

@@ -547,7 +547,7 @@ private function getSeminarVisibility($cid, $playlist_id)
      *
      * @return string $perm the perm value
      */
-    public function getUserPerm($user_id = null)
+    public function getUserPerm($user_id = null, $course_id = null)
     {
         global $user, $perm;
 
@@ -559,6 +559,11 @@ public function getUserPerm($user_id = null)
             return 'owner';
         }
 
+        // check if user has permission on this video due to course ownership
+        if ($this->haveCoursePerm('dozent')) {
+            return 'owner';
+        }
+
         $ret_perm = false;
 
         foreach ($this->perms as $uperm) {