I want to upload a video or mp4 file type.
The backend

<label>File</label>
<input type="file" name="img_url" class="form-control form-control-line" placeholder=" Result" required> 
                                                
          <div class="form-actions col-md-6">
          <input type="hidden" name="proid" value="<?php echo $details->id; ?>">
             <button type="submit" class="btn btn-success"> <i class="fa fa-check"></i> Save</button>
                <button type="button" class="btn btn-danger">Cancel</button>

The controller

$file_name = $_FILES['img_url']['name'];
                $fileSize  = $_FILES["img_url"]["size"];
                $fileType  = $_FILES["img_url"]["type"];

                $config = array(
                    'file_name' => $file_name,
                    'upload_path' => "./assets/images/projects",
                    'allowed_types' => "gif|jpg|png|jpeg|pdf|doc|docx|mp3|mpeg|mp4|video",
                    'overwrite' => False,
                    'max_size' => "40480000",
                    'max_height' => "3600",
                    'max_width' => "3600"
                );

                $this->load->library('upload', $config);
                $this->upload->initialize($config);
                if (!$this->upload->do_upload('img_url')) {
                    echo $this->upload->display_errors();
                        

I want to save a mp4 file but its now working