Front_End::filter_thumbnail_html( $html,  $post_id )

	public function filter_thumbnail_html( $html, $post_id ){

		if( ! Helper::video_is_visible() ){
			return $html;
		}

		$video = Helper::get_video_post( $post_id );
		if( !$video->is_video() ){
			return $html;
		}

		$options = $video->get_embed_options();
		if( 'replace-featured-image' !== $options['video_position'] ){
			return $html;
		}

		$video_container = Helper::embed_video( $video, [], false );

		/**
		 * Filter the embed code when option to replace featured image is on.
		 * Filter is triggered when the option to embed videos in place of the featured image is activated.
		 *
		 * @param string $video_container   The HTML element that will contrin the video embed.
		 * @param Video_Post $video         The \Vimeotheque\Video_Post post object.
		 * @param string $thumbnail_html    The featured image HTML code.
		 */
		return apply_filters(
			'vimeotheque_enhanced_embed\embed_code',
			$video_container,
			$video,
			$html
		);
	}