/**
 * Register additional oEmbed providers
 * 
 * @author Syed Balkhi
 * @link http://goo.gl/tccJh
 */
function iweb_register_additional_oembed_providers()
{
    wp_oembed_add_provider('http://www.mixcloud.com/*', 'http://www.mixcloud.com/oembed');
}

function instagram_oembed_provider()
{
    wp_oembed_add_provider('#https?://(www.)?instagram.com/p/.*#i', 'http://api.instagram.com/oembed', true);
    wp_oembed_add_provider('#https?://(www.)?instagr.am/p/.*#i', 'http://api.instagram.com/oembed', true);
}

 function wp_estate_init()
 {
     global $content_width;
     if (!isset($content_width)) {
         $content_width = 1800;
     }
     load_theme_textdomain('wpestate', get_template_directory() . '/languages');
     set_post_thumbnail_size(940, 198, true);
     add_editor_style();
     add_theme_support('post-thumbnails');
     add_theme_support('automatic-feed-links');
     add_theme_support('custom-background');
     add_theme_support("title-tag");
     wp_estate_setup();
     add_action('widgets_init', 'register_wpestate_widgets');
     add_action('init', 'wpestate_shortcodes');
     wp_oembed_add_provider('#https?://twitter.com/\\#!/[a-z0-9_]{1,20}/status/\\d+#i', 'https://api.twitter.com/1/statuses/oembed.json', true);
     wpestate_image_size();
     add_filter('excerpt_length', 'wp_estate_excerpt_length');
     add_filter('excerpt_more', 'wpestate_new_excerpt_more');
     add_action('tgmpa_register', 'wpestate_required_plugins');
     add_action('wp_enqueue_scripts', 'wpestate_scripts');
     // function in css_js_include.php
     add_action('admin_enqueue_scripts', 'wpestate_admin');
     // function in css_js_include.php
 }

 /**
  * Register Facebook provider
  *
  * @since  1.0.0
  * @param  array $providers Existing providers.
  */
 public function add_facebook($providers)
 {
     $endpoints = array('#https?://www\\.facebook\\.com/video.php.*#i' => 'https://www.facebook.com/plugins/video/oembed.json/', '#https?://www\\.facebook\\.com/.*/videos/.*#i' => 'https://www.facebook.com/plugins/video/oembed.json/', '#https?://www\\.facebook\\.com/.*/posts/.*#i' => 'https://www.facebook.com/plugins/post/oembed.json/', '#https?://www\\.facebook\\.com/.*/activity/.*#i' => 'https://www.facebook.com/plugins/post/oembed.json/', '#https?://www\\.facebook\\.com/photo(s/|.php).*#i' => 'https://www.facebook.com/plugins/post/oembed.json/', '#https?://www\\.facebook\\.com/permalink.php.*#i' => 'https://www.facebook.com/plugins/post/oembed.json/', '#https?://www\\.facebook\\.com/media/.*#i' => 'https://www.facebook.com/plugins/post/oembed.json/', '#https?://www\\.facebook\\.com/questions/.*#i' => 'https://www.facebook.com/plugins/post/oembed.json/', '#https?://www\\.facebook\\.com/notes/.*#i' => 'https://www.facebook.com/plugins/post/oembed.json/');
     foreach ($endpoints as $pattern => $endpoint) {
         wp_oembed_add_provider($pattern, $endpoint, true);
     }
 }

 /** 
  *	Register the two URLS that support will be created for
  *
  *	@author		Nate Jacobs
  *	@date		3/9/13
  *	@since		1.0
  */
 public function register_oembed()
 {
     $oembed_url = home_url();
     $key = $this->get_key();
     // Create our own oembed url
     $oembed_url = add_query_arg(array('brickset_oembed' => $key), $oembed_url);
     wp_oembed_add_provider('#https?://(www\\.)?brickset.com/detail/\\?Set\\=.*/?#i', $oembed_url, true);
     wp_oembed_add_provider('#https?://(www\\.)?brickset.com/browse/themes/\\?theme\\=.*/?#i', $oembed_url, true);
 }

 /**
  * Attach handlers for Vine embeds
  *
  * @since 1.0.0
  *
  * @return void
  */
 public static function init()
 {
     // register our shortcode and its handler
     add_shortcode(self::SHORTCODE_TAG, array(__CLASS__, 'shortcodeHandler'));
     // register a preferred handler for the Vine URL pattern
     // matched URLs execute before the oEmbed handlers
     wp_embed_register_handler(self::SHORTCODE_TAG, self::URL_PATTERN, array(__CLASS__, 'linkHandler'), 1);
     // add Vine to the list of allowed oEmbed providers
     // fallback for functions that go straight to oEmbed
     wp_oembed_add_provider(self::URL_PATTERN, 'https://vine.co/oembed.{format}', true);
 }

 function register_dc_oembed_provider()
 {
     /*
         Hello developer. If you wish to test this plugin against your
         local installation of DocumentCloud (with its own testing
         domain), set the OEMBED_PROVIDER and OEMBED_RESOURCE_DOMAIN
         constants above to your local testing domain. You'll also want
         to uncomment the next line to let WordPress connect to local
         domains.
     */
     // add_filter( 'http_request_host_is_external', '__return_true');
     wp_oembed_add_provider("http://" . WP_DocumentCloud::OEMBED_RESOURCE_DOMAIN . "/documents/*", WP_DocumentCloud::OEMBED_PROVIDER);
     wp_oembed_add_provider("https://" . WP_DocumentCloud::OEMBED_RESOURCE_DOMAIN . "/documents/*", WP_DocumentCloud::OEMBED_PROVIDER);
 }

function magyar_video_embed()
{
    wp_embed_unregister_handler('vivatvhu');
    wp_embed_unregister_handler('mtvcohu');
    wp_embed_unregister_handler('mnohu');
    wp_embed_unregister_handler('tv2hu');
    wp_embed_unregister_handler('rtlhu');
    wp_embed_register_handler('vivatvhu', '#http://(www\\.)?vivatv\\.hu/([0-9a-zA-Z\\-\\_\\/]+)/(?:videos)/([0-9a-zA-Z\\-\\_\\/]+)\\-([\\d]+)#i', 'wp_embed_handler_vivatvhu');
    wp_embed_register_handler('mtvcohu', '#http://(www\\.)?mtv\\.co\\.hu/([0-9a-zA-Z\\-\\_\\/]+)/(?:videos)/([0-9a-zA-Z\\-\\_\\/]+)\\-([\\d]+)#i', 'wp_embed_handler_mtvcohu');
    wp_embed_register_handler('mnohu', '#http://(www\\.)?mno\\.hu/(?:videok)/([\\d]+)#i', 'wp_embed_handler_mnohu');
    wp_embed_register_handler('tv2hu', '#http://(www\\.)?tv2\\.hu/(musoraink)/([0-9a-zA-Z\\.\\-\\_]+)/([\\d]+)_([0-9a-zA-Z\\.\\-\\_]+)#i', 'wp_embed_handler_tv2hu');
    wp_embed_register_handler('rtlhu', '#http://(www\\.)?rtl\\.hu/(rtlklub)/([0-9a-zA-Z\\-\\_\\/]+)#i', 'wp_embed_handler_rtlhu');
    wp_oembed_add_provider('#http://(www\\.)?noltv\\.hu/video/([\\d]+)\\.html#i', 'http://www.noltv.hu/services/oembed', true);
    wp_oembed_add_provider('#http://(www\\.)?indavideo\\.hu/video/(.*)#i', 'http://www.indavideo.hu/oembed', true);
    wp_oembed_add_provider('#http://(www\\.)?videa\\.hu/videok/(.*)#i', 'http://videa.hu/oembed', true);
    wp_oembed_add_provider('#http://(www\\.)?pixter\\.hu/video\\?id=(.*)#i', 'http://www.pixter.hu/oembed.{format}', true);
}

 function marcatoxml_plugin()
 {
     $this->importer = new marcatoxml_importer();
     add_action('admin_menu', array($this, 'build_menus'));
     add_filter('posts_where', array($this, 'posts_where'));
     add_action('init', array($this, 'register_custom_post_types'));
     add_action('init', array($this, 'enqueue_styles'));
     register_activation_hook(__FILE__, array($this, 'flush_rewrites'));
     register_deactivation_hook(__FILE__, array($this, 'flush_rewrites'));
     register_activation_hook(__FILE__, array($this, 'schedule_updates'));
     register_deactivation_hook(__FILE__, array($this, 'unschedule_updates'));
     add_action('marcato_update', array($this, 'cron_job'));
     add_filter('pre_get_posts', array($this, 'query_post_type'));
     add_filter('mce_css', array($this, 'add_mce_css'));
     add_shortcode('marcato-link', array($this, 'marcato_link'));
     add_shortcode('marcato-field', array($this, 'marcato_field'));
     add_shortcode('marcato-thumbnail', array($this, 'marcato_thumbnail'));
     wp_oembed_add_provider('#http://(www\\.)?soundcloud.com/.*#i', 'http://www.soundcloud.com/oembed/', true);
 }

 /**
  * Adds oembed endpoints for supported video platforms that are not supported by core.
  *
  * @since 1.3.5
  */
 public function add_oembed()
 {
     // @todo - check with official plugin
     // Wistia
     $options = get_option('wpseo_video');
     $wistia_regex = '`(?:http[s]?:)?//[^/]*(wistia\\.(com|net)|wi\\.st#CUSTOM_URL#)/(medias|embed)/.*`i';
     if ($options['wistia_domain'] !== '') {
         $wistia_regex = str_replace('#CUSTOM_URL#', '|' . preg_quote($options['wistia_domain'], '`'), $wistia_regex);
     } else {
         $wistia_regex = str_replace('#CUSTOM_URL#', '', $wistia_regex);
     }
     wp_oembed_add_provider($wistia_regex, 'http://fast.wistia.com/oembed', true);
     // Animoto, Ted, Collegehumor - WP native support added in WP 4.0
     if (version_compare($GLOBALS['wp_version'], '3.9.99', '<')) {
         wp_oembed_add_provider('`http[s]?://(?:www\\.)?(animoto|video214)\\.com/play/.*`i', 'http://animoto.com/oembeds/create', true);
         wp_oembed_add_provider('`http[s]?://(www\\.)?collegehumor\\.com/video/.*`i', 'http://www.collegehumor.com/oembed.{format}', true);
         wp_oembed_add_provider('`http[s]?://(www\\.|embed\\.)?ted\\.com/talks/.*`i', 'http://www.ted.com/talks/oembed.{format}', true);
     } else {
         wp_oembed_add_provider('`http[s]?://(?:www\\.)?viddler\\.com/.*`i', 'http://lab.viddler.com/services/oembed/', true);
     }
     // Screenr
     wp_oembed_add_provider('`http[s]?://(?:www\\.)?screenr\\.com/.*`i', 'http://www.screenr.com/api/oembed.{format}', true);
     // EVS
     $evs_location = get_option('evs_location');
     if ($evs_location && !empty($evs_location)) {
         wp_oembed_add_provider($evs_location . '/*', $evs_location . '/oembed.php', false);
     }
 }

function novalite_oembed_soundcloud()
{
    wp_oembed_add_provider('http://soundcloud.com/*', 'http://soundcloud.com/oembed');
    wp_oembed_add_provider('https://soundcloud.com/*', 'http://soundcloud.com/oembed');
    wp_oembed_add_provider('#https?://(?:api\\.)?soundcloud\\.com/.*#i', 'http://soundcloud.com/oembed');
}

 /**
  * Add any extra oEmbed providers that we know about and use on wpcom for feature parity.
  */
 function extra_oembed_providers()
 {
     // Cloudup: https://dev.cloudup.com/#oembed
     wp_oembed_add_provider('https://cloudup.com/*', 'https://cloudup.com/oembed');
     wp_oembed_add_provider('https://me.sh/*', 'https://me.sh/oembed?format=json');
     wp_oembed_add_provider('#https?://(www\\.)?gfycat\\.com/.*#i', 'https://api.gfycat.com/v1/oembed', true);
     wp_oembed_add_provider('#https?://[^.]+\\.(wistia\\.com|wi\\.st)/(medias|embed)/.*#', 'https://fast.wistia.com/oembed', true);
     wp_oembed_add_provider('#https?://sketchfab\\.com/.*#i', 'https://sketchfab.com/oembed', true);
 }

    }
}
function wpcom_force_ssl_home_urls_in_content_when_secure($content)
{
    if (is_admin()) {
        return $content;
    }
    if (is_ssl()) {
        return str_replace(home_url('/', 'http'), home_url('/', 'https'), $content);
    }
    return str_replace(home_url('/', 'https'), home_url('/', 'http'), $content);
}
add_filter('the_content', 'wpcom_force_ssl_home_urls_in_content_when_secure');
add_filter('comment_text', 'wpcom_force_ssl_home_urls_in_content_when_secure');
add_filter('widget_text', 'wpcom_force_ssl_home_urls_in_content_when_secure');
wp_oembed_add_provider('#https?://[^.]+\\.(wistia\\.com|wi\\.st)/(medias|embed)/.*#', 'https://fast.wistia.com/oembed', true);
/**
 * Load a WordPress.com theme compat file, if it exists.
 */
function wpcom_load_theme_compat_file()
{
    if (!defined('WP_INSTALLING') || 'wp-activate.php' === $GLOBALS['pagenow']) {
        // Many wpcom.php files call $themecolors directly. Ease the pain.
        global $themecolors;
        $template_path = get_template_directory();
        $stylesheet_path = get_stylesheet_directory();
        $file = '/inc/wpcom.php';
        // Look also in /includes as alternate location, since premium theme partners may use that convention.
        if (!file_exists($template_path . $file) && !file_exists($stylesheet_path . $file)) {
            $file = '/includes/wpcom.php';
        }

Original version: Johannes Wagener <[email protected]>
Options support: Tiffany Conroy <[email protected]>
HTML5 & oEmbed support: Tim Bormans <[email protected]>
*/
/*
A8C: Taken from http://plugins.svn.wordpress.org/soundcloud-shortcode/trunk/
at revision 664386.

Commenting out (instead of removing) and replacing code with custom modifs
so it's eqsy to see what differs from the standard DOTORG version.

All custom modifs are annoted with "A8C" keyword in comment.
*/
/* Register oEmbed provider
   -------------------------------------------------------------------------- */
wp_oembed_add_provider('#https?://(?:api\\.)?soundcloud\\.com/.*#i', 'http://soundcloud.com/oembed', true);
/* Register SoundCloud shortcode
   -------------------------------------------------------------------------- */
add_shortcode("soundcloud", "soundcloud");
/**
 * SoundCloud shortcode handler
 * @param  {string|array}  $atts     The attributes passed to the shortcode like [soundcloud attr1="value" /].
 *                                   Is an empty string when no arguments are given.
 * @param  {string}        $content  The content between non-self closing [soundcloud]…[/soundcloud] tags.
 * @return {string}                  Widget embed code HTML
 */
function soundcloud($atts, $content = null)
{
    // Custom shortcode options
    $shortcode_options = array_merge(array('url' => trim($content)), is_array($atts) ? $atts : array());
    // Turn shortcode option "param" (param=value&param2=value) into array

/**
 * Does the work of adding the Embedly providers to wp_oembed
 */
function add_embedly_providers($the_content)
{
    $services = get_embedly_selected_services();
    $embedly_key = get_option('embedly_key');
    require_once ABSPATH . WPINC . '/class-oembed.php';
    $oembed = _wp_oembed_get_object();
    $oembed->providers = array();
    if ($services && get_option('embedly_active')) {
        foreach ($services as $service) {
            foreach (json_decode($service->regex) as $sre) {
                if ($embedly_key) {
                    wp_oembed_add_provider($sre, 'http://api.embed.ly/1/oembed?key=' . $embedly_key, true);
                } else {
                    wp_oembed_add_provider($sre, 'http://api.embed.ly/1/oembed', true);
                }
            }
        }
    }
}

<?php

// guarantee use of https
wp_oembed_remove_provider('#https?://(www\\.)?slideshare\\.net/.*#i');
wp_oembed_add_provider('#https?://(www\\.)?slideshare\\.net/.*#i', 'https://www.slideshare.net/api/oembed/2', true);
/*
 * Slideshare shortcode format:
 * Old style (still compatible): [slideshare id=5342235&doc=camprock-101002163655-phpapp01&w=300&h=200]
 * New style: [slideshare id=5342235&w=300&h=200&fb=0&mw=0&mh=0&sc=no]
 *
 * Legend:
 *	id 	= 	Document ID provided by Slideshare
 *	w	=	Width of iFrame 	(int)
 *	h	=	Height of iFrame 	(int)
 *	fb	=	iFrame frameborder 	(int)
 *	mw	=	iFrame marginwidth 	(int)
 *	mh	=	iFrame marginheight	(int)
 *	sc	=	iFrame Scrollbar	(yes/no)
 **/
add_shortcode('slideshare', 'slideshare_shortcode');
function slideshare_shortcode($atts)
{
    global $content_width;
    $params = shortcode_new_to_old_params($atts);
    parse_str($params, $arguments);
    if (empty($arguments)) {
        return '<!-- SlideShare error: no arguments -->';
    }
    extract($arguments);
    // check that the Slideshare ID contains letters, numbers and query strings
    $pattern = '/[^-_a-zA-Z0-9?=&]/';

<?php

// Nicer Mesh email subscription output
function subscription_email_mesh($existing)
{
    $existing[] = array('regex' => '@<div style=".*?" class="mesh-embed">\\s*<div style="padding-top: 100%"></div>\\s*(?:<p>)<iframe src="(https://me\\.sh.*?)".*?</iframe>\\s*</div>@', 'endpoint' => 'https://me.sh/oembed');
    return $existing;
}
add_filter('subscription_email_oembeds', 'subscription_email_mesh');
wp_oembed_add_provider('#https?://me.sh/.*#i', 'https://me.sh/oembed?format=json', true);

 /**
  * Add this site to the whitelist of oEmbed providers.
  */
 public function add_oembed_provider()
 {
     wp_oembed_add_provider(home_url('/*'), esc_url(rest_url('wp/v2/oembed')));
 }

 function add_oembed_soundcloud()
 {
     wp_oembed_add_provider('http://soundcloud.com/*', 'http://api.soundcloud.com/');
 }

 public function addVimeoOembedCorrectly()
 {
     wp_oembed_add_provider('#http://(www\\.)?vimeo\\.com/.*#i', 'http://vimeo.com/api/oembed.{format}', true);
 }