functions.php

function onepress_before_section( $section_id, $args = array() ){
        if ( ! isset( $args['_bg_type'] ) ) {
            $args['_bg_type'] = '';
        }

        if ( ! class_exists( 'OnePress_Plus' ) ) {
            if ( $section_id == 'videolightbox' ) {
                $image = onepress_get_video_lightbox_image();
                if ( $image || onepress_is_selective_refresh() ) {
                    echo '<div class="section-parallax">';
                    echo ' <div class="parallax-bg"><img src="' . esc_url($image) . '" alt=""></div>';
                }
                return ;
            }
        }

        switch( $args['_bg_type'] ) {
            case 'video':
                $args = wp_parse_args( $args, array(
                    'video_url' => '',
                    'video_webm_url' => '',
                    'video_ogv_url' => '',
                    'image' => ''
                ) );
                extract( $args );
                if (  $video_url || $video_webm_url || $video_ogv_url ) {
                    ?>
                <div class="video-section"
                     data-mp4="<?php echo esc_url( $video_url ); ?>"
                     data-webm="<?php echo esc_url( $video_webm_url ); ?>"
                     data-ogv="<?php echo esc_url( $video_ogv_url ); ?>"
                     data-bg="<?php echo esc_attr( $image ); ?>">
                    <?php
                }
                break;

            case 'image':
                $args = wp_parse_args( $args, array(
                    'image' => '',
                    'alpha' => '',
                    'enable_parallax' => ''
                ) );
                extract( $args );
                if ( $enable_parallax == 1 ) {
                    $class = 'section-parallax';
                    if( $section_id == 'hero' ){
                        $class =' parallax-hero';
                    }
                    echo '<div id="parallax-'.esc_attr( $section_id ).'" class="'.esc_attr( $class ).'">';
                    echo ' <div class="parallax-bg"><img src="'.esc_url( $image ).'" alt=""></div>';
                } else if ( $image || $alpha ) { // image bg
                    echo '<div id="bgimage-'.esc_attr( $section_id ).'" class="bgimage-alpha bgimage-'.esc_attr( $section_id ).'">';
                }
                break;
        }// end switch
    }