filmout_display/include/dpx.hpp

/*
#ifndef DPX_HPP
#define DPX_HPP

#include <opencv2/opencv.hpp>
#include <string>
#include <fstream>
#include <vector>
#include <stdexcept>

using namespace std;
using namespace cv;

class DPX {
public:
    DPX(const std::string& filepath);
    ~DPX() = default;

    // Get the loaded raw image data
    cv::Mat getRawImage() const { return raw; }
    
    // Get image properties
    int getBitDepth() const { return bitDepth; }
    int getWidth() const { return width; }
    int getHeight() const { return height; }
    
    // Convert to 8-bit or 10-bit representation
    cv::Mat convertTo8Bit() const;
    cv::Mat convertTo10Bit() const;

private:
    struct DPXHeader {
        uint32_t magic;           // Magic number (0x53445058 or 'SDPX')
        uint32_t imageOffset;     // Offset to image data
        uint32_t fileVersion;     // Version number of header format
        uint32_t fileSize;        // Total image file size in bytes
        uint16_t dittoKey;        // Image content flag
        uint16_t headerSize;      // Generic header length in bytes
        uint32_t industrySize;    // Industry specific header length
        uint32_t userSize;        // User defined data length
        uint32_t encryptKey;      // Encryption key
    };

    struct DPXImageElement {
        uint32_t dataSign;        // Data sign (0 = unsigned, 1 = signed)
        uint32_t lowData;         // Reference low data code value
        uint32_t lowQuantity;     // Reference low quantity
        uint32_t highData;        // Reference high data code value
        uint32_t highQuantity;    // Reference high quantity
        uint8_t descriptor;       // Descriptor for image element
        uint8_t transfer;         // Transfer characteristics
        uint8_t colorimetric;     // Colorimetric specification
        uint8_t bitDepth;         // Bit depth
        uint16_t packing;         // Packing method
        uint16_t encoding;        // Encoding method
    };

    cv::Mat raw;                  // Raw image data
    int bitDepth;                 // Image bit depth
    int width;                    // Image width
    int height;                   // Image height
    
    // Private helper methods
    void readHeader(std::ifstream& file);
    void readImageData(std::ifstream& file, uint32_t imageOffset);
    void processImageData(std::vector<uint8_t>& buffer);
    void unpack10BitData(const std::vector<uint8_t>& buffer, cv::Mat& output);
    void swapEndianness(uint8_t* data, size_t size);
    bool isLittleEndian() const;
};

#endif
*/