Current Author outside of loop

I’m using the Soliloquy plugin for featured content on the author.php page. I would like to show only posts from the author, however this code to do that resides outside of the loop. I’ve tried a couple of suggested options for calling the author outside the loop, but nothing seems to be working.

What should I be adding here? The suggested code from the plugin hardcodes the ID which I do not want, since each author page should display content from just that author.

<?php
/**
* Add Author Arguments to Featured Content Queries
*
* @param string $html HTML Link
* @param obj $post WP_Post
* @param array $data Slider Configuration
* @return string HTML Link
*/
function soliloquy_fc_custom_author( $query_args, $id, $data ) {

	// You could check for a specific slider ID here, if you only want
	// to amend your FC query on a single slider.
	if ( 38119 !== $id ) {
		return $query_args;
	}

	// $query_args is an array for WP_Query:
	// http://codex.wordpress.org/Class_Reference/WP_Query
	$query_args['author__in'] = array( 1, 2 ); // Only get Posts that belong to User IDs 1 or 2

	// Return query arguments
	return $query_args;

}
add_filter( 'soliloquy_fc_query_args', 'soliloquy_fc_custom_author', 10, 3 );