Davide Sapienza
69 lines
1.9 KiB
C++
69 lines
1.9 KiB
C++
#ifndef INT8BATCHSTREAM_H
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#define INT8BATCHSTREAM_H
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#include <vector>
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#include <assert.h>
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#include <algorithm>
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#include <iterator>
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#include <stdint.h>
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#include <iostream>
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#include <string>
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#include <fstream>
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#include <iomanip>
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#include <signal.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <mutex>
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#include "NvInfer.h"
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#include "utils.h"
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#include "tkdnn.h"
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/*
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* BatchStream implements the stream for the INT8 calibrator.
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* It reads the two files .txt with the list of image file names
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* and the list of label file names.
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* It then iterates on images and labels.
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*/
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class BatchStream {
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public:
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BatchStream(tk::dnn::dataDim_t dim, int batchSize, int maxBatches, const std::string& fileimglist, const std::string& filelabellist);
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virtual ~BatchStream() { }
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void reset(int firstBatch);
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bool next();
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void skip(int skipCount);
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float *getBatch() { return mBatch.data(); }
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float *getLabels() { return mLabels.data(); }
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int getBatchesRead() const { return mBatchCount; }
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int getBatchSize() const { return mBatchSize; }
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nvinfer1::DimsNCHW getDims() const { return mDims; }
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float* getFileBatch() { return &mFileBatch[0]; }
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float* getFileLabels() { return &mFileLabels[0]; }
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void readInListFile(const std::string& dataFilePath, std::vector<std::string>& mListIn);
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void readCVimage(std::string inputFileName, std::vector<float>& res, bool fixshape = true);
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void readLabels(std::string inputFileName ,std::vector<float>& ris);
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bool update();
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private:
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int mBatchSize{ 0 };
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int mMaxBatches{ 0 };
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int mBatchCount{ 0 };
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int mFileCount{ 0 };
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int mFileBatchPos{ 0 };
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int mImageSize{ 0 };
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nvinfer1::DimsNCHW mDims;
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std::vector<float> mBatch;
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std::vector<float> mLabels;
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std::vector<float> mFileBatch;
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std::vector<float> mFileLabels;
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int mHeight;
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int mWidth;
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std::string mFileImgList;
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std::vector<std::string> mListImg;
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std::string mFileLabelList;
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std::vector<std::string> mListLabel;
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};
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#endif //INT8BATCHSTREAM
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