BitstuffingCodec.hh

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#ifndef COSA_BITSTUFFINGCODEC_HH
#define COSA_BITSTUFFINGCODEC_HH

#include <VWI.h>

class BitstuffingCodec : public VWI::Codec {
public:
  BitstuffingCodec() :
    VWI::Codec(5, 0x34a, 8)
  {
  }

  virtual const uint8_t* preamble()
  {
    return (s_preamble);
  }

  virtual uint8_t encode4(uint8_t nibble)
  {
    return (((nibble & 0xf) << 1) + ((nibble & 0x1) == 0));
  };

  virtual uint8_t decode4(uint8_t symbol)
  {
    return ((symbol >> 1) & 0xf);
  }

private:
  static const uint8_t s_preamble[] PROGMEM;
};

#endif