turbojpeg_compressor.hpp

// turbojpeg_compressor.hpp
// Created by Greg on 1/30/25.
// Copyright (C) 2025 Presage Security, Inc.
//
// SPDX-License-Identifier: LGPL-3.0-or-later
 
#pragma once
 
#include <vector>
#include <absl/status/statusor.h>
#include <opencv2/core/mat.hpp>
#include <turbojpeg.h>
 
namespace presage::smartspectra::compression {

class TurboJpegCompressor {
public:
    static absl::StatusOr<TurboJpegCompressor> Create();
 
    ~TurboJpegCompressor();
 
    // Move semantics
    TurboJpegCompressor(TurboJpegCompressor&& other) noexcept;
    TurboJpegCompressor& operator=(TurboJpegCompressor&& other) noexcept;
 
    // No copy
    TurboJpegCompressor(const TurboJpegCompressor&) = delete;
    TurboJpegCompressor& operator=(const TurboJpegCompressor&) = delete;

    absl::Status Compress(const cv::Mat& frame, int quality, std::vector<unsigned char>& output);
 
private:
    explicit TurboJpegCompressor(tjhandle handle);
 
    tjhandle handle_ = nullptr;
};
 
} // namespace presage::smartspectra::compression