AttributeDecoder.h

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#pragma once

#include "ArithmeticCodec.h"
#include "PCCMisc.h"
#include "PCCTMC3Common.h"
#include <stddef.h>
#include <stdint.h>
#include <string>
#include <vector>

namespace pcc {

//============================================================================
// Opaque definitions (Internal detail)

struct PCCResidualsDecoder;

//============================================================================

class AttributeDecoder {
public:
  void buildPredictors(
    const PCCPointSet3 &pointCloud);

  // todo(df): return value is always 0 => should be void?
  int decodeHeader(
    const std::string &attributeName,
    PCCBitstream &bitstream);

  // todo(df): return value is always 0 =>  should be void?
  int decodeReflectances(
    PCCBitstream &bitstream,
    PCCPointSet3 &pointCloud);

  // todo(df): return value is always 0 => should be void?
  int decodeColors(
    PCCBitstream &bitstream,
    PCCPointSet3 &pointCloud);

protected:
  // todo(df): consider alternative encapsulation

  void decodeReflectancesIntegerLift(
    PCCResidualsDecoder &decoder,
    PCCPointSet3 &pointCloud);

  void decodeColorsIntegerLift(
    PCCResidualsDecoder &decoder,
    PCCPointSet3 &pointCloud);

private:
  std::vector<PCCPredictor> predictors;
  std::vector<int64_t> quantizationSteps;
  std::vector<size_t> dist2;
  size_t numberOfNearestNeighborsInPrediction;
  size_t levelOfDetailCount;
};

//============================================================================

} /* namespace pcc */