interleaver.cpp

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#include "interleaver.h"

namespace fun
{
    // Interleave some data
    std::vector<unsigned char> interleaver::interleave(std::vector<unsigned char> data)
    {
        std::vector<unsigned int> interleave_map;
        BitInterleave(48, 1).fill(interleave_map, false);

        std::vector<unsigned char> data_interleaved(data.size());
        for(int x = 0; x < data.size(); x += interleave_map.size())
            for(int y = 0; y < interleave_map.size(); y++)
                data_interleaved[x + interleave_map[y]] = data[x + y];
        return data_interleaved;
    }

    // Deinterleave some data
    std::vector<unsigned char> interleaver::deinterleave(std::vector<unsigned char> data)
    {
        std::vector<unsigned int> deinterleave_map;
        BitInterleave(48, 1).fill(deinterleave_map, true);

        std::vector<unsigned char>data_deinterleaved(data.size());
        for(int s = 0; s < data.size(); s += deinterleave_map.size())
            for(int t = 0; t < deinterleave_map.size(); t++)
                data_deinterleaved[s + deinterleave_map[t]] = data[s + t];
        return data_deinterleaved;
    }
}