62 lines
2.3 KiB
C++
62 lines
2.3 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 "opencv2/opencv.hpp"
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#include "cuda_runtime.h"
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#include "NvInfer.h"
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#include <vector>
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#include <string>
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#ifndef CUDA_CHECK
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#define CUDA_CHECK(callstr) \
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{ \
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cudaError_t error_code = callstr; \
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if (error_code != cudaSuccess) { \
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std::cerr << "CUDA error " << error_code << " at " << __FILE__ << ":" << __LINE__; \
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assert(0); \
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} \
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}
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#endif
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namespace nvinfer1 {
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class Int8EntropyCalibrator2 : public nvinfer1::IInt8EntropyCalibrator2 {
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public:
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Int8EntropyCalibrator2(const int &batchsize,
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const int &channels,
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const int &height,
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const int &width,
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const int &letterbox,
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const std::string &imgPath,
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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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}
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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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