# Copyright (c) Facebook, Inc. and its affiliates.
#
# This source code is licensed under the MIT license found in the
# LICENSE file in the root directory of this source tree.


from torch import nn


class SamePad(nn.Module):
    def __init__(self, kernel_size):
        super().__init__()
        self.remove = kernel_size % 2 == 0

    def forward(self, x):
        if self.remove:
            x = x[:, :, :-1]
        return x