BP_Embed::autoembed( string $content,  $type = '' )

	public function autoembed( $content, $type = '' ) {

		if ( isset( $type->component ) && ( 'activity_update' === $type->type || 'activity_comment' === $type->type ) ) {
			// Check if WordPress already embed the link then return the original content.
			if (strpos($content,'<iframe') !== false) {
				return $content;
			} else {
				// Find all the URLs from the content.
				preg_match_all('#\bhttps?://[^,\s()<>]+(?:\([\w\d]+\)|([^,[:punct:]\s]|/))#', $content, $match);
				// Check if URL found.
				if( isset( $match[0] ) ) {
					$html = '';
					// Remove duplicate from array and run the loop
					foreach ( array_unique( $match[0] ) as $url ) {
						// Store oembed iframe in database cache for 1 day
						if ( false === ( $embed_code = get_transient( $url ) ) ) {

                            // Fetch the oembed code for URL.
                            $embed_code = wp_oembed_get( $url );

                            set_transient( $url, $embed_code, DAY_IN_SECONDS );

                        }
						// If oembed found then store into the $html
						if (strpos($embed_code,'<iframe') !== false) {
							$html .= '<p>'.$embed_code.'</p>';
						}
					}
					// If $html blank return original content
					if ( '' === $html ) {
						return $content;
						// Return the new content by adding oembed after the content.
					} else {
						return $content.$html;
					}
					// Else return original content.
				} else {
					return $content;
				}
			}
		}

		// Replace line breaks from all HTML elements with placeholders.
		$content = wp_replace_in_html_tags( $content, array( "\n" => '<!-- wp-line-break -->' ) );
		$old_content = $content;
		if ( preg_match( '#(^|\s|>)https?://#i', $content ) ) {

			$url = '@(http(s)?)?(://)?(([a-zA-Z])([-\w]+\.)+([^\s\.]+[^\s]*)+[^,.\s])@';
			$content = preg_replace($url, '<p>$0</p>', $content);


			// Find URLs on their own line.
			$content = preg_replace_callback( '|^(\s*)(https?://[^\s<>"]+)(\s*)$|im', array( $this, 'autoembed_callback' ), $content );
			// Find URLs in their own paragraph.
			$content = preg_replace_callback( '|(<p(?: [^>]*)?>\s*)(https?://[^\s<>"]+)(\s*<\/p>)|i', array( $this, 'autoembed_callback' ), $content );
		}


		if (strpos($content,'<iframe') !== false) {

		} else {
			$content = $old_content;
		}

		// Put the line breaks back.
		return str_replace( '<!-- wp-line-break -->', "\n", $content );
	}