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<?php
//$Id$
/*
* @file
* Class file used to wrap the transcoder functions.
*
* @todo need more commenting
*/
class video_transcoder {
private $transcoder;
public function __construct() {
//get our configured transcoder.
$transcoder = variable_get('vid_convertor', 'video_ffmpeg');
module_load_include('inc', 'video', '/transcoders/' . $transcoder);
if(class_exists($transcoder)) {
$this->transcoder = new $transcoder;
}
else {
drupal_set_message(t('The transcoder is not configured properly.'), 'error');
}
}
public function generate_thumbnails($video) {
return $this->transcoder->generate_thumbnails($video);
}
public function convert_video($video, $converted, $dimensions) {
$output = $this->transcoder->convert_video($video, $converted, $dimensions);
// If they are using metadata.
if (variable_get('video_metadata', FALSE)) {
module_load_include('inc', 'video', '/includes/metadata');
$metadata = new video_metadata;
$metadata->process($converted);
}
return $output;
}
public function admin_settings() {
$form = array();
$options = $this->_transcoders();
$form['vid_convertor'] = array(
'#type' => 'radios',
'#title' => t('Video transcoder'),
'#default_value' => variable_get('vid_convertor', 'video_ffmpeg'),
'#options' => $options['radios'],
'#description' => t('Selecting a video transcoder will help you convert videos and generate thumbnails. !list', array('!list' => theme('item_list', $options['help']))),
'#prefix' => '<div id="transcoder-radios">',
'#suffix' => '</div>',
);
$form = $form + $options['admin_settings'];
return $form;
}
private function _transcoders() {
// Lets find our transcoder classes and build our radio options
// We do this by scanning our transcoders folder
$form = array('radios' => array(), 'help' => array(), 'admin_settings' => array());
$path = drupal_get_path('module', 'video') .'/transcoders';
$files = file_scan_directory($path, '^.*\.inc$');
foreach($files as $file) {
module_load_include('inc', 'video', '/transcoders/' . $file->name);
$focus = new $file->name;
$form['radios'][$focus->get_value()] = $focus->get_name();
$form['help'][] = $focus->get_help();
$form['admin_settings'] = $form['admin_settings'] + $focus->admin_settings();
}
//we need to move our video/thumbnail fieldsets to the bottom of our form as they are used for each trancoder
$autothumb = $form['admin_settings']['autothumb'];
$autoconv = $form['admin_settings']['autoconv'];
unset($form['admin_settings']['autothumb'], $form['admin_settings']['autoconv']);
$form['admin_settings']['autothumb'] = $autothumb;
$form['admin_settings']['autoconv'] = $autoconv;
return $form;
}
public function get_dimensions($video) {
return $this->transcoder->get_dimensions($video);
}
public function video_converted_extension() {
return $this->transcoder->video_converted_extension();
}
}
interface transcoder_interface {
public function run_command($command);
public function generate_thumbnails($video);
public function convert_video($video, $converted, $dimensions);
public function get_playtime($video);
public function get_name();
public function get_value();
public function get_help();
public function admin_settings();
}
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