encoding_com.module

<?php


require('encoding_com.php');

function encoding_com_theme() {
  return array(
    'encoding_com_uploader' => array('arguments' => array('element' => NULL)),
    'encoding_com_formatter_default' => array('arguments' => array('element' => NULL)),
  );
}







/**
 * Implementation of hook_form_alter().
 *
 * We add our custom 'preroll' form elements to node-forms for:
 * - game nodes
 * - show nodes
 * - video nodes??
 */
function encoding_com_form_alter(&$form, $form_state, $form_id) {
  
	// check that the form is a node-edit form (and the node-type can use pre-rolls) before altering the form.
  if (strpos($form_id, '_node_form') && isset($form ['#node']) && $form ['#node']->type='video') {
    
  	$form ['video_file'] = array(
        '#title' => t('video file s3'), 
  		'#description' => t('The following section is for adding specific pre-roll advertising to this particular node: '),
        '#attributes' => array(
            'id' => 'cn_ad_prerolls_controls' ), 
        '#type' => 'fieldset', 
        '#collapsible' => TRUE, 
        '#collapsed' => FALSE, 
        '#tree' => TRUE );
    
    
 
  }
}












function encoding_com_help($path, $arg) {
  $output = '';

  switch ($path) {
    case "admin/help#encoding_com":
      $output = '<p>'.  t("This module allows users to upload videos through Encoding.com, the video encoding service") .'</p>';
      break;
  }
  return $output;
}

function encoding_com_perm() {
  return array('upload videos');
}

function encoding_com_menu() {
  $items = array();

  $items['admin/settings/encoding_com'] = array(
    'title' => 'Encoding.com API Settings',
    'description' => 'Specify your Encoding.com account details here',
    'page callback' => 'drupal_get_form',
    'page arguments' => array('encoding_com_admin_form'),
    'access arguments' => array('access administration pages'),
    'type' => MENU_NORMAL_ITEM,
    'file' => 'encoding_com.admin.inc',
   );

  return $items;
}

function encoding_com_field_info() {
  return array(
    'encoding_com_video' => array(
      'label' => t('Video file'),
      'description' => t('Upload a video directly to Encoding.com for immediate encoding'),
    ),
  );
}

function encoding_com_widget_info() {
  return array(
    'encoding_com_uploader' => array(
      'label' => t('JS uploader'),
      'field types' => array('encoding_com_video'),
      'callbacks' => array(
        'default value' => CONTENT_CALLBACK_DEFAULT,
      ),
    ),
  );
}

function encoding_com_field_settings($op, $field) {
  $delegate = 'encoding_com_field_settings_' . str_replace(' ', '_', $op);
  if (function_exists($delegate)) {
    return $delegate($field);
  }
}

function encoding_com_field_settings_database_columns($field) {
  return array(
    'video_id' => array('type' => 'varchar', 'length' => 255, 'not null' => FALSE, 'sortable' => TRUE),
  );
}

function encoding_com_field($op, &$node, $field, &$items, $teaser, $page) {
  $delegate = 'encoding_com_field_' . $op;
  if (function_exists($delegate)) {
    return $delegate($node, $field, $items, $teaser, $page);
  }
}

function encoding_com_field_formatter_info() {
  return array(
    'default' => array('label' => t('Default'), 'field types' => array('encoding_com_video')),
  );
}

function encoding_com_widget(&$form, &$form_state, $field, $items, $delta = 0) {
  $element = array(
    '#type' => $field['widget']['type'],
    '#default_value' => isset($items[$delta]) ? $items[$delta] : NULL,
  );
  return $element;
}

function encoding_com_elements() {
  $elements = array();
  $elements['encoding_com_uploader'] = array(
    '#input' => TRUE,
    '#columns' => array('video_id'),
    '#process' => array('encoding_com_widget_process'),
  );
  return $elements;
}

function encoding_com_widget_process($element, $edit, $form_state, $complete_form) {
  $field_key = 'video_id';
  drupal_add_js(drupal_get_path('module', 'encoding_com') .'/encoding_com_uploader/jquery.encoding_com-uploader-0.6.cat.js');

  $prefix = '';
  if (isset($element['#value']['video_id']) && $element['#value']['video_id']) {
    $prefix .= theme('encoding_com_formatter_default', array('#item' => $element['#value']));
  }
  $prefix .= _encoding_com_widget_additional_markup($element['#id']);

  $element[$field_key] = array(
    '#type' => 'hidden',
    '#default_value' => isset($element['#value'][$field_key]) ? $element['#value'][$field_key] : '',
    '#title' => $element['#title'],
    '#description' => $element['#description'],
    '#required' => $element['#required'],
    '#field_name' => $element['#field_name'],
    '#type_name' => $element['#type_name'],
    '#delta' => $element['#delta'],
    '#columns' => $element['#columns'],
    '#prefix' => $prefix,
    '#suffix' => _encoding_com_widget_js($element['#id']),
  );

  return $element;
}

function encoding_com_content_is_empty($item, $field) {
  return ! $item['video_id'];
}


function theme_encoding_com_uploader($element) {
  drupal_add_css(drupal_get_path('module', 'panda') .'/encoding_com_uploader/panda-uploader.css');
  return theme('form_element', $element, $element['#children']);
}

function theme_encoding_com_formatter_default($element) {
  $video_id = $element['#item']['video_id'];
  $vid = _encoding_com_get_video_details($video_id);
  $vid->url = _encoding_com_get_video_url($vid);
  $vid->screenshot_url = _encoding_com_get_screenshot_url($vid);
  if ($vid->status == 'success') {
    $output = <<<EOF
<div>
  <video id="movie" width="{$vid->width}" height="{$vid->height}" preload="none" poster="{$vid->screenshot_url}" controls>
    <source src="{$vid->url}" type="video/mp4">
  </video>
</div>
EOF;
  }
  else {
    $output = <<<EOF
<p>This video is currently being processed. Please wait until completed.</p>
EOF;
  }
  return $output;
}

function _encoding_com_widget_additional_markup($element_id) {
  return <<<EOF
    <span id="{$element_id}-upload_button"></span>
    <input type="text" id="{$element_id}-upload_filename" disabled="true" class="encoding_com_upload_filename" />
    <div id="{$element_id}-upload_progress" class="encoding_com_upload_progress"></div>
EOF;
}

function _encoding_com_widget_js($element_id) {
  $signed_params = json_encode(@_panda()->signed_params('POST', '/videos.json'));
  return <<<EOF
<script type="text/javascript">
if ($('#{$element_id}-video-id').length > 0) {
  $('#{$element_id}-video-id').pandaUploader($signed_params, {
    upload_button_id: '{$element_id}-upload_button',
    upload_filename_id: '{$element_id}-upload_filename',
    upload_progress_id: '{$element_id}-upload_progress',
    api_url: 'http://api.pandastream.com/v2',
    uploader_dir: '/encoding_com_example_php/encoding_com_uploader',
    disable_submit_button: false
  });
}
</script>
EOF;
}

function _panda() {
  static $panda;
  if ($panda) {
    return $panda;
  }
  $cloud_id = variable_get('encoding_com_cloud_id', NULL);
  $access_key = variable_get('encoding_com_access_key', NULL);
  $secret_key = variable_get('encoding_com_secret_key', NULL);
  $panda = new Panda(array('cloud_id' => $cloud_id, 'access_key' => $access_key, 'secret_key' => $secret_key));
  return $panda;
}

function _encoding_com_get_video_url($details) {
  return _encoding_com_get_file_base_url($details) . $details->extname;
}

function _encoding_com_get_screenshot_url($details) {
  return _encoding_com_get_file_base_url($details) . '_4.jpg';
}

function _encoding_com_get_file_base_url($details) {
  $s3_bucket_name = variable_get('encoding_com_s3_bucket', NULL);
  return "http://$s3_bucket_name.s3.amazonaws.com/{$details->encoding_id}";
}

function _encoding_com_get_video_details($video_id) {
  static $details;
  if ($details) {
    return $details;
  }

  $details = db_fetch_object(db_query("SELECT * FROM {encoding_com_video_encodings} WHERE video_id = '%s'", $video_id));
  if ($details && $details->status != 'processing') {
    return $details;
  }

  $encodings = json_decode(@_panda()->get("/videos/$video_id/encodings.json"));
  if ( ! $encodings) {
    return NULL;
  }

  // TODO: mechanism to choose between available profiles
  // TODO: break gently if no profiles available
  foreach ($encodings as $encoding) {
    if ($encoding->extname == '.mp4') {
      $encoding->encoding_id = $encoding->id;
      unset($encoding->id);
      $details = _encoding_com_store_video_details($encoding);
    }
  }

  return $details;
}

function _encoding_com_store_video_details($encoding) {
  db_query("UPDATE {encoding_com_video_encodings} SET status = '%s' WHERE video_id = '%s'", $encoding->status, $encoding->video_id);
  if ( ! db_affected_rows()) {
    db_query("INSERT INTO {encoding_com_video_encodings} (video_id, encoding_id, width, height, extname, status) VALUES ('%s', '%s', %d, %d, '%s', '%s')", $encoding->video_id, $encoding->encoding_id, $encoding->width, $encoding->height, $encoding->extname, $encoding->status);
  }
  return $encoding;
}