bp_media_filter_public_scope( array $retval = array(), array $filter = array() )

function bp_media_filter_public_scope( $retval = array(), $filter = array() ) {

	// Determine the user_id.
	if ( ! empty( $filter['user_id'] ) ) {
		$user_id = $filter['user_id'];
	} else {
		$user_id = bp_displayed_user_id()
			? bp_displayed_user_id()
			: bp_loggedin_user_id();
	}

	$privacy = array( 'public' );
	if ( is_user_logged_in() && bp_is_profile_media_support_enabled() ) {
		$privacy[] = 'loggedin';
	}

	$args = array(
		'relation' => 'AND',
		array(
			'column' => 'privacy',
			'compare' => 'IN',
			'value'  => $privacy,
		),
	);

	if ( ! bp_is_profile_media_support_enabled() && ! bp_is_profile_albums_support_enabled() ) {
		$args[] = array(
			'column'  => 'user_id',
			'compare' => '=',
			'value'   => '0',
		);
	}

	if ( ! bp_is_profile_albums_support_enabled() ) {
		$args[] = array(
			'column'  => 'album_id',
			'compare' => '=',
			'value'   => '0',
		);
	}

	if ( ! empty( $filter['search_terms'] ) ) {
		$args[] = array(
			'column'  => 'title',
			'compare' => 'LIKE',
			'value'   => $filter['search_terms'],
		);
	}

	$retval = array(
		'relation' => 'OR',
		$args
	);

	return $retval;
}