# Copyright 2020 Huawei Technologies Co., Ltd
#
# 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 torch
from efficientnet_pytorch import EfficientNet

# Specify which model to use
model_name = 'efficientnet-b3'
image_size = EfficientNet.get_image_size(model_name)
print('Image size: ', image_size)

# Load model
model = EfficientNet.from_pretrained(model_name)
model.set_swish(memory_efficient=False)
model.eval()
print('Model image size: ', model._global_params.image_size)

# Dummy input for ONNX
dummy_input = torch.randn(1, 3, 300, 300)

# Export with ONNX
torch.onnx.export(model, dummy_input, f"{model_name}.onnx", verbose=True)