open source driving agent
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#!/usr/bin/env python3
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import sys
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import pathlib
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import onnx
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import codecs
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import pickle
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def get_name_and_shape(value_info:onnx.ValueInfoProto) -> tuple[str, tuple[int,...]]:
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shape = tuple([int(dim.dim_value) for dim in value_info.type.tensor_type.shape.dim])
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name = value_info.name
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return name, shape
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if __name__ == "__main__":
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model_path = pathlib.Path(sys.argv[1])
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model = onnx.load(str(model_path))
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i = [x.key for x in model.metadata_props].index('output_slices')
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output_slices = model.metadata_props[i].value
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metadata = {}
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metadata['output_slices'] = pickle.loads(codecs.decode(output_slices.encode(), "base64"))
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metadata['input_shapes'] = dict([get_name_and_shape(x) for x in model.graph.input])
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metadata['output_shapes'] = dict([get_name_and_shape(x) for x in model.graph.output])
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metadata_path = model_path.parent / (model_path.stem + '_metadata.pkl')
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with open(metadata_path, 'wb') as f:
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pickle.dump(metadata, f)
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print(f'saved metadata to {metadata_path}')
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