Compression.h

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/*
Copyright (c) 2010-2016, Mathieu Labbe - IntRoLab - Universite de Sherbrooke
All rights reserved.

Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
    * Redistributions of source code must retain the above copyright
      notice, this list of conditions and the following disclaimer.
    * Redistributions in binary form must reproduce the above copyright
      notice, this list of conditions and the following disclaimer in the
      documentation and/or other materials provided with the distribution.
    * Neither the name of the Universite de Sherbrooke nor the
      names of its contributors may be used to endorse or promote products
      derived from this software without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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*/

#ifndef COMPRESSION_H_
#define COMPRESSION_H_

#include "rtabmap/core/RtabmapExp.h" // DLL export/import defines

#include <rtabmap/utilite/UThread.h>
#include <opencv2/opencv.hpp>

namespace rtabmap {

class RTABMAP_EXP CompressionThread : public UThread
{
public:
        // format : ".png" ".jpg" "" (empty is general)
        CompressionThread(const cv::Mat & mat, const std::string & format = "");
        CompressionThread(const cv::Mat & bytes, bool isImage);
        const cv::Mat & getCompressedData() const {return compressedData_;}
        cv::Mat & getUncompressedData() {return uncompressedData_;}
protected:
        virtual void mainLoop();
private:
        cv::Mat compressedData_;
        cv::Mat uncompressedData_;
        std::string format_;
        bool image_;
        bool compressMode_;
};

std::vector<unsigned char> RTABMAP_EXP compressImage(const cv::Mat & image, const std::string & format = ".png");
cv::Mat RTABMAP_EXP compressImage2(const cv::Mat & image, const std::string & format = ".png");

cv::Mat RTABMAP_EXP uncompressImage(const cv::Mat & bytes);
cv::Mat RTABMAP_EXP uncompressImage(const std::vector<unsigned char> & bytes);

std::vector<unsigned char> RTABMAP_EXP compressData(const cv::Mat & data);
cv::Mat RTABMAP_EXP compressData2(const cv::Mat & data);

cv::Mat RTABMAP_EXP uncompressData(const cv::Mat & bytes);
cv::Mat RTABMAP_EXP uncompressData(const std::vector<unsigned char> & bytes);
cv::Mat RTABMAP_EXP uncompressData(const unsigned char * bytes, unsigned long size);

cv::Mat RTABMAP_EXP compressString(const std::string & str);
std::string RTABMAP_EXP uncompressString(const cv::Mat & bytes);

} /* namespace rtabmap */
#endif /* COMPRESSION_H_ */