Differentiating between video and image upload in CodeIgniter - codeigniter

Question

I can upload either of image or video from my file. I've set the configuration file for image as follows :
$config['upload_path'] = './docs/';
$config['allowed_types'] = 'gif|jpg|png';
$config['max_size'] = '200';
$config['max_width'] = '250';
$config['max_height'] = '250';
$config['file_name'] = md5(rand().time());
$this -> load -> library('upload', $config);
But when I'll upload video, this configuration will not work as I need to be able to upload much bigger size file ( video ). Is there any way after submitting to find out what I've uploaded ( img/video ) and based on that I can enable the configuration file.
The configuration for video is as follows :
$configVideo['upload_path'] = './docs/';
$configVideo['max_size'] = '50240';
$configVideo['allowed_types'] = 'avi|flv|wmv|mp3|wma';
$configVideo['overwrite'] = FALSE;
$configVideo['remove_spaces'] = TRUE;
$video_name = $date.$_FILES['video']['name'];
$configVideo['file_name'] = $video_name;
$this->load->library('upload', $configVideo);
$this->upload->initialize($configVideo);

Answer 1

You can use $_FILES to find out the type first.
untested
$type = $_FILES['userfile']['type'];
switch ($type) {
case 'gif':
case 'jpg':
case 'png':
// do img config setup
break;
case 'avi':
case 'flv':
case 'wmv':
case 'mp3':
case 'wma':
// do video config
break;
}
Or if you use different names for the files in the form then why not try;
[updated]
$config['upload_path'] = './docs/';
if (is_array($_FILES) && isset($_FILES['image']['name'])) {
// is an image
$config['upload_path'] = './docs/';
$config['allowed_types'] = 'gif|jpg|png';
$config['max_size'] = '200';
$config['max_width'] = '250';
$config['max_height'] = '250';
$config['file_name'] = md5(rand().time());
} elseif (is_array($_FILES) && isset($_FILES['video']['name'])) {
// is a video
$config['max_size'] = '50240';
$config['allowed_types'] = 'avi|flv|wmv|mp3|wma';
$config['overwrite'] = FALSE;
$config['remove_spaces'] = TRUE;
$video_name = $date.$_FILES['video']['name'];
$config['file_name'] = $video_name;
}
$this->load->library('upload', $config);
$this->upload->initialize($config);