Video uploading with Codeigniter and mysql - php

Question

I tried many ways to upload Videos through my website. I don't know why, I can save images, text files etc. but it is not possible to save videos into the folder and database.
Here is my view.
<form action="<?php echo base_url();?>galleries/add_vdo" method="post" enctype="multipart/form-data">
<div class="input-group">
<input type="text" class="form-control" placeholder="Enter Title" name="vdo_title" id="vdo_title">
<textarea class="form-control" placeholder="About Video" name="vdo_desc" id="vdo_desc"></textarea>
<input class="" name="ur_vdo" id="ur_vdo" type="file">
<input class="btn btn-info" type="submit" name="submit" value="Add Now"/>
<!--<button class="btn btn-info btn-lg" id="submit" type="button">Invite</button>-->
</div>
</form>
controller:
function add_vdo()
{
$data['ur_vdo'] = $this->gallery_model->add_new_vdos();
redirect('galleries/vdo_gal','refresh');
}
Model :
function add_new_vdos()
{
$this->load->helper('date');
date_default_timezone_set('Asia/Calcutta');
$config['upload_path'] = './uploads/myvideos/';
$config['allowed_types'] = 'mp4|avi|flv|wmv|';
$this->load->library('upload', $config);
$this->upload->initialize($config);
$field_name ="ur_vdo";
$rgpic="0";
if ( !$this->upload->do_upload($field_name))
{
$error = $this->upload->display_errors();
$data['error']=$error;
}
else
{
$data = $this->upload->data();
$regpicname=$data['file_name'];
$rgpic="1";
}
if($rgpic!=0)
{
$dts = array(
'familypost_caption'=>$this->input->post('vdo_title'),
'familypost_desc'=>$this->input->post('vdo_title'),
'user_id' =>$uid,
'familypost_vdo'=>$regpicname,
'familypost_status'=>'A',
'familypost_date'=>now()
);
}
else
{
$dts = array(
'familypost_caption'=>$this->input->post('vdo_title'),
'familypost_desc'=>$this->input->post('vdo_title'),
'user_id' =>$uid,
'familypost_status'=>'A',
'familypost_date'=>now()
);
}
$vdqr = $this->db->insert('roottildb_familyposts',$dts);
}
I don't know why, video upload fails without showing any error. How can I solve this issue?