inference-engine/src/inference_engine/shape_infer/built-in/ie_rnn_cell_shape_infer.hpp

   1 // Copyright (C) 2018-2019 Intel Corporation
   2 // SPDX-License-Identifier: Apache-2.0
   3 //
   4
   5 #pragma once
   6
   7 #include <description_buffer.hpp>
   8 #include "ie_built_in_impl.hpp"
   9 #include <map>
  10 #include <memory>
  11 #include <string>
  12 #include <vector>
  13
  14 namespace InferenceEngine {
  15 namespace ShapeInfer {
  16
  17 /**
  18  *@brief Implementation of Shape inference for DetectionOutput layer
  19  */
  20 template<class CELL, int S>
  21 class RNNBaseCellShapeProp : public BuiltInShapeInferImpl {
  22 public:
  23     explicit RNNBaseCellShapeProp(const std::string& type) : BuiltInShapeInferImpl(type) {}
  24
  25     void inferShapesImpl(const std::vector<Blob::CPtr>& inBlobs,
  26                          const std::map<std::string, std::string>& params,
  27                          const std::map<std::string, Blob::Ptr>& blobs,
  28                          std::vector<SizeVector>& outShapes) override {
  29         LayerParams lp{};
  30         CELL cnnLayer(lp);
  31         cnnLayer.params = params;
  32         cnnLayer.type = _type;
  33         validate(&cnnLayer, inBlobs, params, blobs);
  34
  35         auto state_dims = inShapes[1];
  36         for (int i = 0; i < S; i++)
  37             outShapes.push_back(state_dims);
  38     }
  39 };
  40
  41 using RNNCellShapeProp  = RNNBaseCellShapeProp<RNNCell,  1>;
  42 using GRUCellShapeProp  = RNNBaseCellShapeProp<GRUCell,  1>;
  43 using LSTMCellShapeProp = RNNBaseCellShapeProp<LSTMCell, 2>;
  44
  45 }  // namespace ShapeInfer
  46 }  // namespace InferenceEngine