1 /** 2 * Copyright 2021 Huawei Technologies Co., Ltd 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #ifndef MINDSPORE_CCSRC_MINDDATA_DATASET_ENGINE_IR_DATASETOPS_SOURCE_DIV2K_NODE_H_ 18 #define MINDSPORE_CCSRC_MINDDATA_DATASET_ENGINE_IR_DATASETOPS_SOURCE_DIV2K_NODE_H_ 19 20 #include <memory> 21 #include <string> 22 #include <vector> 23 24 #include "minddata/dataset/engine/ir/datasetops/dataset_node.h" 25 26 namespace mindspore { 27 namespace dataset { 28 class DIV2KNode : public MappableSourceNode { 29 public: 30 /// \brief Constructor. 31 DIV2KNode(const std::string &dataset_dir, const std::string &usage, const std::string &downgrade, int32_t scale, 32 bool decode, const std::shared_ptr<SamplerObj> &sampler, std::shared_ptr<DatasetCache> cache); 33 34 /// \brief Destructor. 35 ~DIV2KNode() override = default; 36 37 /// \brief Node name getter. 38 /// \return Name of the current node. Name()39 std::string Name() const override { return kDIV2KNode; } 40 41 /// \brief Print the description. 42 /// \param[out] out - The output stream to write output to. 43 void Print(std::ostream &out) const override; 44 45 /// \brief Copy the node to a new object. 46 /// \return A shared pointer to the new copy. 47 std::shared_ptr<DatasetNode> Copy() override; 48 49 /// \brief a base class override function to create the required runtime dataset op objects for this class. 50 /// \param[out] node_ops - A vector containing shared pointer to the Dataset Ops that this object will create. 51 /// \return Status Status::OK() if build successfully. 52 Status Build(std::vector<std::shared_ptr<DatasetOp>> *const node_ops) override; 53 54 /// \brief Parameters validation. 55 /// \return Status Status::OK() if all the parameters are valid. 56 Status ValidateParams() override; 57 58 /// \brief Get the shard id of node. 59 /// \return Status Status::OK() if get shard id successfully. 60 Status GetShardId(int32_t *shard_id) override; 61 62 /// \brief Base-class override for GetDatasetSize. 63 /// \param[in] size_getter Shared pointer to DatasetSizeGetter. 64 /// \param[in] estimate This is only supported by some of the ops and it's used to speed up the process of getting 65 /// dataset size at the expense of accuracy. 66 /// \param[out] dataset_size the size of the dataset. 67 /// \return Status of the function. 68 Status GetDatasetSize(const std::shared_ptr<DatasetSizeGetter> &size_getter, bool estimate, 69 int64_t *dataset_size) override; 70 71 /// \brief Getter functions. DatasetDir()72 const std::string &DatasetDir() const { return dataset_dir_; } 73 74 /// \brief Getter functions. Usage()75 const std::string &Usage() const { return usage_; } 76 77 /// \brief Getter functions. Scale()78 const int32_t &Scale() const { return scale_; } 79 80 /// \brief Getter functions. Downgrade()81 const std::string &Downgrade() const { return downgrade_; } 82 83 /// \brief Getter functions Decode()84 bool Decode() const { return decode_; } 85 86 /// \brief Get the arguments of node. 87 /// \param[out] out_json JSON string of all attributes. 88 /// \return Status of the function. 89 Status to_json(nlohmann::json *out_json) override; 90 91 /// \brief Sampler getter. 92 /// \return SamplerObj of the current node. Sampler()93 std::shared_ptr<SamplerObj> Sampler() override { return sampler_; } 94 95 /// \brief Sampler setter. SetSampler(std::shared_ptr<SamplerObj> sampler)96 void SetSampler(std::shared_ptr<SamplerObj> sampler) override { sampler_ = sampler; } 97 98 private: 99 std::string dataset_dir_; 100 std::string usage_; 101 std::string downgrade_; 102 int32_t scale_; 103 bool decode_; 104 std::shared_ptr<SamplerObj> sampler_; 105 }; 106 } // namespace dataset 107 } // namespace mindspore 108 #endif // MINDSPORE_CCSRC_MINDDATA_DATASET_ENGINE_IR_DATASETOPS_SOURCE_DIV2K_NODE_H_ 109