inference-engine/src/inference_engine/shape_infer/built-in/ie_concat_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 "ie_built_in_impl.hpp"
   8 #include <map>
   9 #include <memory>
  10 #include <string>
  11 #include <vector>
  12
  13 namespace InferenceEngine {
  14 namespace ShapeInfer {
  15
  16 /**
  17  *@brief Implementation of Shape inference for Concat layer
  18  */
  19 class ConcatShapeProp : public BuiltInShapeInferImpl {
  20 public:
  21     explicit ConcatShapeProp(const std::string& type) : BuiltInShapeInferImpl(type) {}
  22
  23     void inferShapesImpl(const std::vector<Blob::CPtr>& inBlobs,
  24                          const std::map<std::string, std::string>& params,
  25                          const std::map<std::string, Blob::Ptr>& blobs,
  26                          std::vector<SizeVector>& outShapes) override {
  27         LayerParams lp{};
  28         ConcatLayer concatLayer(lp);
  29         concatLayer.params = params;
  30         concatLayer.type = _type;
  31         validate(&concatLayer, inBlobs, params, blobs);
  32
  33         size_t sum(0);
  34         size_t axis = concatLayer._axis;
  35         outShapes.push_back(inShapes[0]);
  36         for (const auto& inShape : inShapes) {
  37             if (axis >= inShape.size())
  38                 THROW_IE_EXCEPTION << "Axis can't be more then number of input shapes";
  39             sum += inShape[axis];
  40         }
  41         outShapes[0][axis] = sum;
  42     }
  43 };
  44
  45 }  // namespace ShapeInfer
  46 }  // namespace InferenceEngine