# Copyright (C) CVAT.ai Corporation
#
# SPDX-License-Identifier: MIT

def to_cvat_mask(box: list, mask):
    xtl, ytl, xbr, ybr = box
    flattened = mask[ytl:ybr + 1, xtl:xbr + 1].flat[:].tolist()
    flattened.extend([xtl, ytl, xbr, ybr])
    return flattened