bp_media_default_scope( string $scope )

function bp_media_default_scope( $scope ) {

	$new_scope = array();

	if ( ( 'all' === $scope || empty( $scope ) ) && bp_is_media_directory() ) {
		$new_scope[] = 'public';

		if ( bp_is_active( 'friends' ) && bp_is_profile_media_support_enabled() ) {
			$new_scope[] = 'friends';
		}

		if ( bp_is_active( 'groups' ) && bp_is_group_media_support_enabled() ) {
			$new_scope[] = 'groups';
		}

		if ( is_user_logged_in() && bp_is_profile_media_support_enabled() ) {
			$new_scope[] = 'personal';
		}

	} elseif ( bp_is_user_media() && ( 'all' === $scope || empty( $scope ) ) && bp_is_profile_media_support_enabled() ) {
		$new_scope[] = 'personal';
	}

	$new_scope = array_unique( $new_scope );

	if ( empty( $new_scope ) ) {
		$new_scope = (array) $scope;
	}

	/**
	 * Filter to update default scope.
	 *
	 * @since BuddyBoss 1.4.4
	 */
	$new_scope = apply_filters( 'bp_media_default_scope', $new_scope );

	return implode( ',', $new_scope );

}