57 lines
2.0 KiB
C++
57 lines
2.0 KiB
C++
/*
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* Created by Marcos Luciano
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* https://www.github.com/marcoslucianops
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*/
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#ifndef CALIBRATOR_H
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#define CALIBRATOR_H
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#include <vector>
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#include <cuda_runtime_api.h>
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#include "NvInfer.h"
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#include "opencv2/opencv.hpp"
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#define CUDA_CHECK(status) { \
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if (status != 0) { \
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std::cout << "CUDA failure: " << cudaGetErrorString(status) << " in file " << __FILE__ << " at line " << __LINE__ << \
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std::endl; \
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abort(); \
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} \
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}
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class Int8EntropyCalibrator2 : public nvinfer1::IInt8EntropyCalibrator2 {
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public:
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Int8EntropyCalibrator2(const int& batchsize, const int& channels, const int& height, const int& width,
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const int& letterbox, const std::string& imgPath, const std::string& calibTablePath);
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virtual ~Int8EntropyCalibrator2();
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int getBatchSize() const noexcept override;
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bool getBatch(void* bindings[], const char* names[], int nbBindings) noexcept override;
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const void* readCalibrationCache(std::size_t& length) noexcept override;
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void writeCalibrationCache(const void* cache, size_t length) noexcept override;
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private:
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int batchSize;
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int inputC;
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int inputH;
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int inputW;
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int letterBox;
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std::string calibTablePath;
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size_t imageIndex;
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size_t inputCount;
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std::vector<std::string> imgPaths;
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float* batchData {nullptr};
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void* deviceInput {nullptr};
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bool readCache;
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std::vector<char> calibrationCache;
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};
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std::vector<float> prepareImage(cv::Mat& img, int input_c, int input_h, int input_w, int letter_box);
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#endif //CALIBRATOR_H
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