xpath("/rss/channel/item/media:thumbnail/@url"); $thumbnail = (string) $result[0]['url']; return $thumbnail; } // Justin.tv Functions function getJustintvInfo($id) { $xml = simplexml_load_file("http://api.justin.tv/api/clip/show/$id.xml"); return (string) $xml->clip->image_url_large; } // The Main Event function get_video_thumbnail($post_id=null) { // Get the post ID if none is provided if($post_id==null OR $post_id=='') $post_id = get_the_ID(); // Check to see if thumbnail has already been found if( ($thumbnail_meta = get_post_meta($post_id, '_video_thumbnail', true)) != '' ) { return $thumbnail_meta; } // If the thumbnail isn't stored in custom meta, fetch a thumbnail else { // Gets the post's content $post_array = get_post($post_id); $markup = $post_array->post_content; $markup = apply_filters('the_content',$markup); $new_thumbnail = null; // Simple Video Embedder Compatibility if(function_exists('p75HasVideo')) { if ( p75HasVideo($post_id) ) { $markup = p75GetVideo($post_id); } } // Checks for a standard YouTube embed preg_match('#]+>.+?http://www.youtube.com/[ve]/([A-Za-z0-9\-_]+).+?#s', $markup, $matches); // Checks for YouTube iframe if(!isset($matches[1])) { preg_match('#http://www.youtube.com/embed/([A-Za-z0-9\-_]+)#s', $markup, $matches); } // Checks for any YouTube URL if(!isset($matches[1])) { preg_match('#http://w?w?w?.?youtube.com/watch\?v=([A-Za-z0-9\-_]+)#s', $markup, $matches); } // If no standard YouTube embed is found, checks for one embedded with JR_embed if(!isset($matches[1])) { preg_match('#\[youtube id=([A-Za-z0-9\-_]+)]#s', $markup, $matches); } // If we've found a YouTube video ID, create the thumbnail URL if(isset($matches[1])) { $youtube_thumbnail = 'http://img.youtube.com/vi/' . $matches[1] . '/0.jpg'; // Check to make sure it's an actual thumbnail if (!function_exists('curl_init')) { $new_thumbnail = $youtube_thumbnail; } else { $ch = curl_init($youtube_thumbnail); curl_setopt($ch, CURLOPT_NOBODY, true); curl_exec($ch); $retcode = curl_getinfo($ch, CURLINFO_HTTP_CODE); // $retcode > 400 -> not found, $retcode = 200, found. curl_close($ch); if($retcode==200) { $new_thumbnail = $youtube_thumbnail; } } } // Vimeo if($new_thumbnail==null) { // Standard embed code preg_match('#]+>.+?http://vimeo.com/moogaloop.swf\?clip_id=([A-Za-z0-9\-_]+)&.+?#s', $markup, $matches); // Find Vimeo embedded with iframe code if(!isset($matches[1])) { preg_match('#http://player.vimeo.com/video/([0-9]+)#s', $markup, $matches); } // If we still haven't found anything, check for Vimeo embedded with JR_embed if(!isset($matches[1])) { preg_match('#\[vimeo id=([A-Za-z0-9\-_]+)]#s', $markup, $matches); } // If we still haven't found anything, check for Vimeo URL if(!isset($matches[1])) { preg_match('#http://w?w?w?.?vimeo.com/([A-Za-z0-9\-_]+)#s', $markup, $matches); } // If we still haven't found anything, check for Vimeo shortcode if(!isset($matches[1])) { preg_match('#\[vimeo clip_id="([A-Za-z0-9\-_]+)"[^>]*]#s', $markup, $matches); } if(!isset($matches[1])) { preg_match('#\[vimeo video_id="([A-Za-z0-9\-_]+)"[^>]*]#s', $markup, $matches); } // Now if we've found a Vimeo ID, let's set the thumbnail URL if(isset($matches[1])) { $vimeo_thumbnail = getVimeoInfo($matches[1], $info = 'thumbnail_large'); if(isset($vimeo_thumbnail)) { $new_thumbnail = $vimeo_thumbnail; } } } // Blip.tv if($new_thumbnail==null) { // Blip.tv file URL preg_match('#http://blip.tv/play/([A-Za-z0-9]+)#s', $markup, $matches); // Now if we've found a Blip.tv file URL, let's set the thumbnail URL if(isset($matches[1])) { $blip_thumbnail = getBliptvInfo($matches[1]); $new_thumbnail = $blip_thumbnail; } } // Justin.tv if($new_thumbnail==null) { // Justin.tv archive ID preg_match('#archive_id=([0-9]+)#s', $markup, $matches); // Now if we've found a Justin.tv archive ID, let's set the thumbnail URL if(isset($matches[1])) { $justin_thumbnail = getJustintvInfo($matches[1]); $new_thumbnail = $justin_thumbnail; } } // Return the new thumbnail variable and update meta if one is found if($new_thumbnail!=null) { // Save as Attachment if enabled if(get_option('video_thumbnails_save_media')==1) { $ch = curl_init(); $timeout = 0; curl_setopt ($ch, CURLOPT_URL, $new_thumbnail); curl_setopt ($ch, CURLOPT_RETURNTRANSFER, 1); curl_setopt ($ch, CURLOPT_CONNECTTIMEOUT, $timeout); $image_contents = curl_exec($ch); curl_close($ch); $upload = wp_upload_bits(basename($new_thumbnail), null, $image_contents); $new_thumbnail = $upload['url']; $filename = $upload['file']; $wp_filetype = wp_check_filetype(basename($filename), null ); $attachment = array( 'post_mime_type' => $wp_filetype['type'], 'post_title' => get_the_title($post_id), 'post_content' => '', 'post_status' => 'inherit' ); $attach_id = wp_insert_attachment( $attachment, $filename, $post_id ); // you must first include the image.php file // for the function wp_generate_attachment_metadata() to work require_once(ABSPATH . "wp-admin" . '/includes/image.php'); $attach_data = wp_generate_attachment_metadata( $attach_id, $filename ); wp_update_attachment_metadata( $attach_id, $attach_data ); } // Add hidden custom field with thumbnail URL if(!update_post_meta($post_id, '_video_thumbnail', $new_thumbnail)) add_post_meta($post_id, '_video_thumbnail', $new_thumbnail, true); // Set attachment as featured image if enabled if(get_option('video_thumbnails_set_featured')==1 && get_option('video_thumbnails_save_media')==1 && get_post_meta($post_id, '_thumbnail_id', true) == '' ) { if(!update_post_meta($post_id, '_thumbnail_id', $attach_id)) add_post_meta($post_id, '_thumbnail_id', $attach_id, true); } } return $new_thumbnail; } }; // Echo thumbnail function video_thumbnail($post_id=null) { if( ( $video_thumbnail = get_video_thumbnail($post_id) ) == null ) { echo plugins_url() . "/video-thumbnails/default.jpg"; } else { echo $video_thumbnail; } }; // Create Meta Fields on Edit Page add_action("admin_init", "video_thumbnail_admin_init"); function video_thumbnail_admin_init(){ add_meta_box("video_thumbnail", "Video Thumbnail", "video_thumbnail_admin", "post", "side", "low"); } function video_thumbnail_admin(){ global $post; $custom = get_post_custom($post->ID); $video_thumbnail = $custom["_video_thumbnail"][0]; ?>

Video Thumbnail URL:

ID); $old_thumbnail = $custom["_video_thumbnail"][0]; if ($old_thumbnail == '') { get_video_thumbnail($post->ID); } elseif (isset($_POST["video_thumbnail"]) && $_POST["video_thumbnail"]==$old_thumbnail) { return null; } elseif (isset($_POST["video_thumbnail"]) && $_POST["video_thumbnail"]!='') { if(!update_post_meta($post->ID, "_video_thumbnail", $_POST["video_thumbnail"])) add_post_meta($post->ID, "_video_thumbnail", $_POST["video_thumbnail"], true); } elseif (isset($_POST["video_thumbnail"]) && $_POST["video_thumbnail"]=='') { delete_post_meta($post->ID, "_video_thumbnail"); } } } // Set Default Options register_activation_hook(__FILE__,'video_thumbnails_activate'); register_deactivation_hook(__FILE__,'video_thumbnails_deactivate'); function video_thumbnails_activate() { add_option('video_thumbnails_save_media','1'); add_option('video_thumbnails_set_featured','1'); } function video_thumbnails_deactivate() { delete_option('video_thumbnails_save_media'); delete_option('video_thumbnails_set_featured'); } // Check for cURL register_activation_hook(__FILE__,'video_thumbnails_curl_check'); function video_thumbnails_curl_check(){ if (!function_exists('curl_init')) { deactivate_plugins(basename(__FILE__)); // Deactivate ourself wp_die("Sorry, but this plugin requires cURL to be activated on your server.

Google should be able to help you."); } } // Aministration add_action('admin_menu', 'video_thumbnails_menu'); function video_thumbnails_menu() { add_options_page('Video Thumbnail Options', 'Video Thumbnails', 'manage_options', 'video-thumbnail-options', 'video_thumbnail_options'); } function video_thumbnail_options() { if (!current_user_can('manage_options')) { wp_die( __('You do not have sufficient permissions to access this page.') ); } function video_thumbnails_checkbox_option($option_name, $option_description) { ?>

Video Thumbnails Options

Save Thumbnail to Media
Set as Featured Image

How to use

For themes that use featured images, simply leave the two settings above enabled.

For more detailed instructions, check out the page for Video Thumbnails on the official plugin directory.