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test_idct.py
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test_idct.py
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# ------------------------------------------------------------------------ #
# Copyright 2022 SPTK Working Group #
# #
# Licensed under the Apache License, Version 2.0 (the "License"); #
# you may not use this file except in compliance with the License. #
# You may obtain a copy of the License at #
# #
# http://www.apache.org/licenses/LICENSE-2.0 #
# #
# Unless required by applicable law or agreed to in writing, software #
# distributed under the License is distributed on an "AS IS" BASIS, #
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. #
# See the License for the specific language governing permissions and #
# limitations under the License. #
# ------------------------------------------------------------------------ #
import pytest
from scipy.fft import idct as scipy_idct
import diffsptk
import tests.utils as U
@pytest.mark.parametrize("device", ["cpu", "cuda"])
@pytest.mark.parametrize("module", [False, True])
@pytest.mark.parametrize("dct_type", [1, 2, 3, 4])
def test_compatibility(device, module, dct_type, L=8, B=2):
idct = U.choice(
module,
diffsptk.IDCT,
diffsptk.functional.idct,
{"dct_length": L},
{"dct_type": dct_type},
)
if dct_type == 2:
U.check_compatibility(
device,
idct,
[],
f"nrand -l {B*L}",
f"idct -l {L}",
[],
dx=L,
dy=L,
)
def func(x):
return scipy_idct(x, type=dct_type, norm="ortho")
U.check_confidence(
device,
idct,
func,
[B, L],
)
U.check_differentiability(device, idct, [B, L])