= 400 $output = unserialize( curl_exec( $ch ) ); $output = $output[0][$info]; if ( curl_error( $ch ) != null ) { $output = new WP_Error( 'vimeo_info_retrieval', __( 'Error retrieving video information from the URL ' . $videoinfo_url . '.
Libcurl error ' . curl_errno( $ch ) . ': ' . curl_error( $ch ) . '. If opening that URL in your web browser returns anything else than an error page, the problem may be related to your web server and might be something your host administrator can solve.' ) ); } curl_close( $ch ); return $output; } }; // Blip.tv Functions function getBliptvInfo( $id ) { $videoinfo_url = "http://blip.tv/players/episode/$id?skin=rss"; $xml = simplexml_load_file( $videoinfo_url ); if ( $xml == false ) { return new WP_Error( 'bliptv_info_retrieval', __( 'Error retrieving video information from the URL ' . $videoinfo_url . '. If opening that URL in your web browser returns anything else than an error page, the problem may be related to your web server and might be something your host administrator can solve.' ) ); } else { $result = $xml->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; } // Get DailyMotion Thumbnail function getDailyMotionThumbnail( $id ) { if ( ! function_exists( 'curl_init' ) ) { return null; } else { $ch = curl_init(); $videoinfo_url = "https://api.dailymotion.com/video/$id?fields=thumbnail_url"; curl_setopt( $ch, CURLOPT_URL, $videoinfo_url ); curl_setopt( $ch, CURLOPT_HEADER, 0 ); curl_setopt( $ch, CURLOPT_RETURNTRANSFER, true ); curl_setopt( $ch, CURLOPT_SSL_VERIFYPEER, false ); curl_setopt( $ch, CURLOPT_TIMEOUT, 10 ); curl_setopt( $ch, CURLOPT_FAILONERROR, true ); // Return an error for curl_error() processing if HTTP response code >= 400 $output = curl_exec( $ch ); $output = json_decode( $output ); $output = $output->thumbnail_url; if ( curl_error( $ch ) != null ) { $output = new WP_Error( 'dailymotion_info_retrieval', __( 'Error retrieving video information from the URL ' . $videoinfo_url . '.
Libcurl error ' . curl_errno( $ch ) . ': ' . curl_error( $ch ) . '. If opening that URL in your web browser returns anything else than an error page, the problem may be related to your web server and might be something your host administrator can solve.' ) ); } curl_close( $ch ); // Moved here to allow curl_error() operation above. Was previously below curl_exec() call. return $output; } }; // Metacafe function getMetacafeThumbnail( $id ) { $videoinfo_url = "http://www.metacafe.com/api/item/$id/"; $xml = simplexml_load_file( $videoinfo_url ); if ( $xml == false ) { return new WP_Error( 'metacafe_info_retrieval', __( 'Error retrieving video information from the URL ' . $videoinfo_url . '.
Libcurl error ' . curl_errno( $ch ) . ': ' . curl_error( $ch ) . '. If opening that URL in your web browser returns anything else than an error page, the problem may be related to your web server and might be something your host administrator can solve.' ) ); } else { $result = $xml->xpath( "/rss/channel/item/media:thumbnail/@url" ); $thumbnail = (string) $result[0]['url']; return $thumbnail; } }; // // 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 $thumbnail_meta; } // If the thumbnail isn't stored in custom meta, fetch a thumbnail else { echo "
";
                var_dump(get_post_custom($post_id));
                echo "
"; // Get the post or custom field to search if ( $video_key = get_option( 'video_thumbnails_custom_field' ) ) { $markup = get_post_meta( $post_id, $video_key, true ); } else { $post_array = get_post( $post_id ); $markup = $post_array->post_content; $markup = apply_filters( 'the_content', $markup ); } $new_thumbnail = null; /*echo "
video_key = " . $video_key . "
"; echo "
markeup = " . $markup . "
";*/ // Simple Video Embedder Compatibility if ( function_exists( 'p75HasVideo' ) ) { if ( p75HasVideo( $post_id ) ) { $markup = p75GetVideo( $post_id ); } } // Checks for the old standard YouTube embed preg_match( '#]+>.+?https?://www\.youtube(?:\-nocookie)?\.com/[ve]/([A-Za-z0-9\-_]+).+?#s', $markup, $matches ); // More comprehensive search for YouTube embed, redundant but necessary until more testing is completed if ( !isset( $matches[1] ) ) { preg_match( '#https?://www\.youtube(?:\-nocookie)?\.com/[ve]/([A-Za-z0-9\-_]+)#', $markup, $matches ); } // Checks for YouTube iframe, the new standard since at least 2011 if ( !isset( $matches[1] ) ) { preg_match( '#https?://www\.youtube(?:\-nocookie)?\.com/embed/([A-Za-z0-9\-_]+)#', $markup, $matches ); } // Checks for any YouTube URL. After http(s) support a or v for Youtube Lyte and v or vh for Smart Youtube plugin if ( !isset( $matches[1] ) ) { preg_match( '#(?:https?(?:a|vh?)?://)?(?:www\.)?youtube(?:\-nocookie)?\.com/watch\?.*v=([A-Za-z0-9\-_]+)#', $markup, $matches ); } // Checks for any shortened youtu.be URL. After http(s) a or v for Youtube Lyte and v or vh for Smart Youtube plugin if ( !isset( $matches[1] ) ) { preg_match( '#(?:https?(?:a|vh?)?://)?youtu\.be/([A-Za-z0-9\-_]+)#', $markup, $matches ); } // Checks for YouTube Lyte if ( !isset( $matches[1] ) && function_exists( 'lyte_parse' ) ) { preg_match( '#
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]+)#', $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\-_]+)]#', $markup, $matches ); } // If we still haven't found anything, check for Vimeo URL if ( !isset( $matches[1] ) ) { preg_match( '#(?:http://)?(?:www\.)?vimeo\.com/([A-Za-z0-9\-_]+)#', $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\-_]+)"[^>]*]#', $markup, $matches ); } if ( !isset( $matches[1] ) ) { preg_match( '#\[vimeo video_id="([A-Za-z0-9\-_]+)"[^>]*]#', $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 ( is_wp_error( $vimeo_thumbnail ) ) { return $vimeo_thumbnail; } else if ( isset( $vimeo_thumbnail ) ) { $new_thumbnail = $vimeo_thumbnail; } } } // Blip.tv if ( $new_thumbnail == null ) { // Blip.tv embed URL preg_match( '#http://blip\.tv/play/([A-Za-z0-9]+)#', $markup, $matches ); // Now if we've found a Blip.tv embed URL, let's set the thumbnail URL if ( isset( $matches[1] ) ) { $blip_thumbnail = getBliptvInfo( $matches[1] ); if ( is_wp_error( $blip_thumbnail ) ) { return $blip_thumbnail; } else if ( isset( $blip_thumbnail ) ) { $new_thumbnail = $blip_thumbnail; } } } // Justin.tv if ( $new_thumbnail == null ) { // Justin.tv archive ID preg_match( '#archive_id=([0-9]+)#', $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; } } // Dailymotion if ( $new_thumbnail == null ) { // Dailymotion flash preg_match( '#]+>.+?http://www\.dailymotion\.com/swf/video/([A-Za-z0-9]+).+?#s', $markup, $matches ); // Dailymotion url if ( !isset( $matches[1] ) ) { preg_match( '#(?:https?://)?(?:www\.)?dailymotion\.com/video/([A-Za-z0-9]+)#', $markup, $matches ); } // Dailymotion iframe if ( !isset( $matches[1] ) ) { preg_match( '#https?://www\.dailymotion\.com/embed/video/([A-Za-z0-9]+)#', $markup, $matches ); } // Now if we've found a Dailymotion video ID, let's set the thumbnail URL if ( isset( $matches[1] ) ) { $dailymotion_thumbnail = getDailyMotionThumbnail( $matches[1] ); if ( is_wp_error( $dailymotion_thumbnail ) ) { return $dailymotion_thumbnail; } else if ( isset( $dailymotion_thumbnail ) ) { $new_thumbnail = strtok( $dailymotion_thumbnail, '?' ); } } } // Metacafe if ( $new_thumbnail == null ) { // Find ID from Metacafe embed url preg_match( '#http://www\.metacafe\.com/fplayer/([A-Za-z0-9\-_]+)/#', $markup, $matches ); // Now if we've found a Metacafe video ID, let's set the thumbnail URL if ( isset( $matches[1] ) ) { $metacafe_thumbnail = getMetacafeThumbnail( $matches[1] ); if ( is_wp_error( $metacafe_thumbnail ) ) { return $metacafe_thumbnail; } else if ( isset( $metacafe_thumbnail ) ) { $new_thumbnail = strtok( $metacafe_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 ) { $error = ''; $ch = curl_init(); $timeout = 0; curl_setopt ( $ch, CURLOPT_URL, $new_thumbnail ); curl_setopt ( $ch, CURLOPT_RETURNTRANSFER, 1 ); curl_setopt ( $ch, CURLOPT_CONNECTTIMEOUT, $timeout ); curl_setopt( $ch, CURLOPT_FAILONERROR, true ); // Return an error for curl_error() processing if HTTP response code >= 400 $image_contents = curl_exec( $ch ); if ( curl_error( $ch ) != null || $image_contents == null ) { $curl_error = ''; if ( curl_error( $ch ) != null ) { $curl_error = '
Libcurl error ' . curl_errno( $ch ) . ': ' . curl_error( $ch ) . ''; } $error = new WP_Error( 'thumbnail_retrieval', __( 'Error retrieving a thumbnail from the URL ' . $new_thumbnail . '' . $curl_error . '. If opening that URL in your web browser shows an image, the problem may be related to your web server and might be something your server administrator can solve.' ) ); } curl_close( $ch ); if ( $error != null ) { return $error; } else { $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() { $video_thumbnails_post_types = get_option( 'video_thumbnails_post_types' ); if ( is_array( $video_thumbnails_post_types ) ) { foreach ( $video_thumbnails_post_types as $type ) { add_meta_box( 'video_thumbnail', 'Video Thumbnail', 'video_thumbnail_admin', $type, 'side', 'low' ); } } } function video_thumbnail_admin() { global $post; $custom = get_post_custom( $post->ID ); $video_thumbnail = $custom["_video_thumbnail"][0]; if ( isset( $video_thumbnail ) && $video_thumbnail != '' ) { echo '

'; } if ( get_post_status() == 'publish' || get_post_status() == 'private' ) { if ( isset( $video_thumbnail ) && $video_thumbnail != '' ) { echo '

Reset Video Thumbnail

'; } else { echo '

We didn\'t find a video thumbnail for this post.

'; echo '

Search Again

'; } } else { if ( isset( $video_thumbnail ) && $video_thumbnail != '' ) { echo '

Reset Video Thumbnail

'; } else { echo '

A video thumbnail will be found for this post when it is published.

'; } } } // AJAX Searching if ( in_array( basename( $_SERVER['PHP_SELF'] ), apply_filters( 'video_thumbnails_editor_pages', array( 'post-new.php', 'page-new.php', 'post.php', 'page.php' ) ) ) ) { add_action( 'admin_head', 'video_thumbnails_ajax' ); } function video_thumbnails_ajax() { ?> get_error_message(); } else if ( $video_thumbnail != null ) { echo ''; } else { echo 'We didn\'t find a video thumbnail for this post. (be sure you have saved changes first)'; } die(); } // Find video thumbnail when saving a post, but not on autosave add_action('save_post', 'save_video_thumbnail', 10, 1 ); /*add_action( 'new_to_publish', 'save_video_thumbnail', 10, 1 ); add_action( 'draft_to_publish', 'save_video_thumbnail', 10, 1 ); add_action( 'pending_to_publish', 'save_video_thumbnail', 10, 1 ); add_action( 'future_to_publish', 'save_video_thumbnail', 10, 1 );*/ // Finds thumbnail when posting from XML-RPC // (this action passes the post ID as an argument so 'get_video_thumbnail' is used instead) add_action( 'xmlrpc_publish_post', 'get_video_thumbnail', 10, 1 ); function save_video_thumbnail( $post ) { $post_type = get_post_type( $post->ID ); $video_thumbnails_post_types = get_option( 'video_thumbnails_post_types' ); if ( defined( 'DOING_AUTOSAVE' ) && DOING_AUTOSAVE ) { return null; } else { // Check that Video Thumbnails are enabled for current post type if ( in_array( $post_type, (array) $video_thumbnails_post_types ) || $post_type == $video_thumbnails_post_types ) { get_video_thumbnail( $post->ID ); } else { return null; } } } // 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' ); add_option( 'video_thumbnails_custom_field', '' ); add_option( 'video_thumbnails_post_types', array( 'post' ) ); } function video_thumbnails_deactivate() { delete_option( 'video_thumbnails_save_media' ); delete_option( 'video_thumbnails_set_featured' ); delete_option( 'video_thumbnails_custom_field' ); delete_option( 'video_thumbnails_post_types' ); } // 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 libcurl to be activated on your server.' ); } } // AJAX for Past Posts if ( isset ( $_GET['page'] ) && ( $_GET['page'] == 'video-thumbnail-options' ) ) { add_action( 'admin_head', 'video_thumbnails_past_ajax' ); } function video_thumbnails_past_ajax() { ?> get_error_message(); } else if ( $video_thumbnail != null ) { echo '✔ Success!'; } else { echo '✖ Couldn\'t find a video thumbnail for this post.'; } die(); } // Administration 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_thumbnails_checkbox_option( $option_name, $option_description ) { ?>

Video Thumbnails Options

Say thanks by donating, any amount is appreciated!

Save Thumbnail to Media
Set as Featured Image
Post Types
Custom Field (Optional: If your video is stored in a custom field, enter the name of that field here. Otherwise, leave this field blank.)
Custom Field (Optional: If your video is stored in a custom field, enter the name of that field here. Otherwise, leave this field blank.)

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.

Scan All Posts

Scan all of your past posts for video thumbnails. Be sure to save any settings before running the scan.