mapGeneration.hpp

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 * This file is part of uvgVPCCenc V-PCC encoder.
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#include "uvgvpcc/uvgvpcc.hpp"
 
using namespace uvgvpcc_enc;
 
 
struct Filter {
    std::vector<float> data_;
    double shift_;
};
struct Filter444to420 {
    Filter horizontal_;
    Filter vertical_;
};
 
class MapGenerationBaseLine {
   public:
    static void initializeStaticParameters();
    static void initGOFMapGeneration(std::shared_ptr<uvgvpcc_enc::GOF>& gof);
    static void generateFrameMaps(std::shared_ptr<uvgvpcc_enc::Frame>& frame);
    static void writeFrameMapsYUV(std::shared_ptr<uvgvpcc_enc::Frame>& frame);
 
   private:
    
    static Filter444to420 g_filter444to420_unique_;
 
    static void mapsGeneration(uvgvpcc_enc::Frame& frame, const size_t& gofMapsHeight);
    static void writePatch(const uvgvpcc_enc::Patch& patch, const size_t& imageSize, uvgvpcc_enc::Frame& frame);
    static void writePatchAxisSwap(const uvgvpcc_enc::Patch& patch, const size_t& imageSize, uvgvpcc_enc::Frame& frame);
 
    static void fillBackgroundImages(uvgvpcc_enc::Frame& frame, const size_t& gofMapsHeight);
 
    static void fillBackgroundEmptyBlock(uvgvpcc_enc::Frame& frame, const size_t blockSize, const size_t imageSize,
                                         const size_t uBlk, const size_t vBlk, const size_t uom, const size_t vom);
    static void fillBackgroundNonEmptyBlock(uvgvpcc_enc::Frame& frame, const size_t blockSize, const size_t imageSize,
                                            const size_t uom, const size_t vom, const size_t pixelBlockCount,
                                            size_t missingPixelCount, std::vector<size_t>& iterations);
    static void updateSums(uvgvpcc_enc::Frame& frame, const size_t blockLeft, const size_t blockTop, const size_t iBlk,
                           const size_t jBlk, const size_t imageSize, std::vector<size_t>& iterations,
                           const size_t blockSize, std::vector<size_t>& sumGeo, std::vector<size_t>& sumR,
                           std::vector<size_t>& sumG, std::vector<size_t>& sumB, std::vector<size_t>& count);
    static void allocateMaps(uvgvpcc_enc::Frame& frame, const size_t& gofMapsHeight);
    static void RGB444toYUV420(std::vector<uint8_t>& img, const size_t& width, const size_t& height);
 
    static void downsampling(const std::vector<float>& chroma_in, std::vector<float>& chroma_out, const size_t widthIn,
                             const size_t heightIn);
};