82 lines
2.6 KiB
C++
82 lines
2.6 KiB
C++
// Copyright (C) 2018-2025 Intel Corporation
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// SPDX-License-Identifier: Apache-2.0
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//
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#pragma once
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#include <cstddef>
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#include <cstdint>
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#include <memory>
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#include <string>
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#include <vector>
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#include "openvino/op/constant.hpp"
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#include "openvino/op/lstm_cell.hpp"
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#include "openvino/op/util/attr_types.hpp"
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#include "openvino/op/util/rnn_cell_base.hpp"
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namespace ov {
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namespace op {
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namespace v5 {
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///
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/// \brief Class for lstm sequence node.
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///
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/// \note It follows notation and equations defined as in ONNX standard:
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/// https://github.com/onnx/onnx/blob/master/docs/Operators.md#LSTM
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///
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/// \sa LSTMCell, RNNCell, GRUCell
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///
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///
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/// \ingroup ov_ops_cpp_api
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class OPENVINO_API LSTMSequence : public util::RNNCellBase {
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public:
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OPENVINO_OP("LSTMSequence", "opset5", util::RNNCellBase);
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LSTMSequence() = default;
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using direction = RecurrentSequenceDirection;
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size_t get_default_output_index() const override {
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return no_default_index();
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}
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explicit LSTMSequence(const Output<Node>& X,
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const Output<Node>& initial_hidden_state,
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const Output<Node>& initial_cell_state,
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const Output<Node>& sequence_lengths,
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const Output<Node>& W,
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const Output<Node>& R,
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const Output<Node>& B,
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const std::int64_t hidden_size,
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const direction lstm_direction,
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const std::vector<float>& activations_alpha = {},
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const std::vector<float>& activations_beta = {},
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const std::vector<std::string>& activations = {"sigmoid", "tanh", "tanh"},
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const float clip = 0.f)
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: RNNCellBase({X, initial_hidden_state, initial_cell_state, sequence_lengths, W, R, B},
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hidden_size,
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clip,
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activations,
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activations_alpha,
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activations_beta),
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m_direction(lstm_direction) {
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constructor_validate_and_infer_types();
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}
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void validate_and_infer_types() override;
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bool visit_attributes(AttributeVisitor& visitor) override;
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std::shared_ptr<Node> clone_with_new_inputs(const OutputVector& new_args) const override;
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direction get_direction() const {
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return m_direction;
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}
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void set_direction(const direction& dir) {
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m_direction = dir;
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}
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private:
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direction m_direction{direction::FORWARD};
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};
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} // namespace v5
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} // namespace op
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} // namespace ov
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