saya tidak dapat memutar video pada halaman web saya

saya sudah berhasil memposting videonya pada database dan sudah tersimpan pada direktori, namun saat membuka halamannya, videonya tidak terputar...

//My controller :

function tambah_gallery(){
        cek_session_akses('gallery',$this->session->id_session);
        if (isset($_POST['submit'])){
            $config['upload_path'] = 'asset/img_galeri/';
            $config['allowed_types'] = 'mp4';
            $config['max_size'] = '500000'; // kb
            $this->load->library('upload', $config);
            $this->upload->do_upload('d');
            $hasil=$this->upload->data();
            if ($hasil['file_name']==''){
                $data = array('id_album'=>$this->input->post('a'),
                            'username'=>$this->session->username,
                            'jdl_gallery'=>$this->input->post('b'),
                            'gallery_seo'=>seo_title($this->input->post('b')),
                            'keterangan'=>$this->input->post('c'));
            }else{
                $data = array('id_album'=>$this->input->post('a'),
                            'username'=>$this->session->username,
                            'jdl_gallery'=>$this->input->post('b'),
                            'gallery_seo'=>seo_title($this->input->post('b')),
                            'keterangan'=>$this->input->post('c'),
                            'gbr_gallery'=>$hasil['file_name']);
            }
            $this->model_app->insert('gallery',$data);  
            redirect($this->uri->segment(1).'/gallery');
        }else{
            $data['record'] = $this->model_app->view_ordering('album','id_album','DESC');
            $this->template->load('administrator/template','administrator/mod_gallery/view_gallery_tambah',$data);
        }
    }

//My View :

<?php 
$base_path = FCPATH;
?>
<div class="post-head mb-4">
    <?php echo "$rows[jdl_album]"; ?>
</div> 
<div class="row">
    <div class="col-lg-12">
        <div class="blog-detail card shadow mb-4">
            <div class="card-body">
                <div class="card-text">
                    <?php echo "$rows[keterangan]"; ?>
                </div>           
                    <?php               
                    $no = 1+$this->uri->segment(4); 
                    foreach ($detailalbum->result_array() as $h) {  
                        if (trim($h['gbr_gallery'])==''){ 
                            $gbr_gallery = 'no-image.jpg'; 
                        } else { 
                            $gbr_gallery = $h['gbr_gallery']; 
                        }
                        ?>
             
                            <h3 class="card-title">
                                <?php echo $no." ".$h['jdl_gallery'];?>
                            </h3>       
                        <video width="320" height="240" controls>
                          <source src="<?php echo base_url()."asset/img_galeri/".$gbr_gallery;?>" type="' . $video_type . '">
                          </video>              
                            <!-- <img src="<?php echo base_url()."asset/img_galeri/".$gbr_gallery;?>" alt="<?php echo $h['jdl_gallery'];?>" class="card-img-top" /> -->
                            <div class="card-text">
                                <?php echo $h['keterangan']; ?>
                            </div>
                            <?php
                            $no++;
                        }
                    ?>  
                <div class="post-meta">
                <i class="fa fa-calendar" aria-hidden="true"></i> <?php echo tgl_indo($rows['tgl_posting']); ?> , 
                <i class="fa fa-user" aria-hidden="true"> </i> <?php echo $rows['nama_lengkap']; ?> , 
                    dilihat <?php echo ($rows['hits_album']+1); ?> x
                </div>
            </div>

            <div class="card-footer">  
                <?php include 'partials/share.php';?>
            </div>
        </div>
        <div class='pagination'>
            <?php echo $this->pagination->create_links(); ?>
        </div>
    </div>  
</div>      
<?php
$bfiklan = $this->model_utama->view_where_ordering_limit('iklantengah',array('posisi'=>'berita_foto'),'id_iklantengah','ASC',0,5);
foreach ($bfiklan->result_array() as $ia) {
    echo "<a href='$ia[url]' target='_blank'>";
        $string = $ia['gambar'];
        if ($ia['gambar'] != ''){
            if(preg_match("/swf\z/i", $string)) {
                echo "<embed style='margin-top:-10px' src='".base_url()."asset/foto_iklantengah/$ia[gambar]' width='100%' height=90px quality='high' type='application/x-shockwave-flash'>";
            } else {
                echo "<img style='margin-top:-10px; margin-bottom:5px' width='100%' src='".base_url()."asset/foto_iklantengah/$ia[gambar]' title='$ia[judul]' />";
            }
        }
    echo "</a>";
    if (trim($ia['source']) != ''){ echo "$ia[source]"; }
}
?>