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#pragma once

#include "Common.h"

#include "SEI.h"

namespace vvenc {

struct OlsHrdParams

{

  bool     fixedPicRateGeneralFlag;

  bool     fixedPicRateWithinCvsFlag;

  bool     lowDelayHrdFlag;

  uint32_t elementDurationInTcMinus1;

  uint32_t bitRateValueMinus1[MAX_CPB_CNT][2];

  uint32_t cpbSizeValueMinus1[MAX_CPB_CNT][2];

  uint32_t duCpbSizeValueMinus1[MAX_CPB_CNT][2];

  uint32_t duBitRateValueMinus1[MAX_CPB_CNT][2];

  bool     cbrFlag[MAX_CPB_CNT][2];

  OlsHrdParams()

    : fixedPicRateGeneralFlag   (false)

    , fixedPicRateWithinCvsFlag (false)

    , lowDelayHrdFlag           (false)

    , elementDurationInTcMinus1 (0)

  {

    memset( bitRateValueMinus1,   0, sizeof(bitRateValueMinus1));

    memset( cpbSizeValueMinus1,   0, sizeof(cpbSizeValueMinus1));

    memset( duCpbSizeValueMinus1, 0, sizeof(duCpbSizeValueMinus1));

    memset( duBitRateValueMinus1, 0, sizeof(duBitRateValueMinus1));

    memset( cbrFlag,              0, sizeof(cbrFlag));

  }

};

struct GeneralHrdParams

{

  uint32_t numUnitsInTick;

  uint32_t timeScale;

  bool     generalNalHrdParamsPresent;

  bool     generalVclHrdParamsPresent;

  bool     generalSamePicTimingInAllOlsFlag;

  uint32_t tickDivisorMinus2;

  bool     generalDecodingUnitHrdParamsPresent;

  uint32_t bitRateScale;

  uint32_t cpbSizeScale;

  uint32_t cpbSizeDuScale;

  uint32_t hrdCpbCntMinus1;

  GeneralHrdParams()

    : generalNalHrdParamsPresent              (false)

    , generalVclHrdParamsPresent              (false)

    , generalSamePicTimingInAllOlsFlag        (true)

    , tickDivisorMinus2                       (0)

    , generalDecodingUnitHrdParamsPresent     (false)

    , bitRateScale                            (0)

    , cpbSizeScale                            (0)

    , cpbSizeDuScale                          (0)

    , hrdCpbCntMinus1                         (0)

  {}

  bool operator==(const GeneralHrdParams& other) const

  {

    return (numUnitsInTick == other.numUnitsInTick

      && timeScale == other.timeScale

      && generalNalHrdParamsPresent == other.generalNalHrdParamsPresent

      && generalVclHrdParamsPresent == other.generalVclHrdParamsPresent

      && generalSamePicTimingInAllOlsFlag == other.generalSamePicTimingInAllOlsFlag

      && generalDecodingUnitHrdParamsPresent == other.generalDecodingUnitHrdParamsPresent

      && (generalDecodingUnitHrdParamsPresent ? (tickDivisorMinus2 == other.tickDivisorMinus2): 1)

      && bitRateScale == other.bitRateScale

      && cpbSizeScale == other.cpbSizeScale

      && (generalDecodingUnitHrdParamsPresent ? (cpbSizeDuScale == other.cpbSizeDuScale) : 1)

      && hrdCpbCntMinus1 == other.hrdCpbCntMinus1

      );

  }

  GeneralHrdParams& operator=(const GeneralHrdParams& input)

  {

    numUnitsInTick = input.numUnitsInTick;

    timeScale = input.timeScale;

    generalNalHrdParamsPresent = input.generalNalHrdParamsPresent;

    generalVclHrdParamsPresent = input.generalVclHrdParamsPresent;

    generalSamePicTimingInAllOlsFlag = input.generalSamePicTimingInAllOlsFlag;

    generalDecodingUnitHrdParamsPresent = input.generalDecodingUnitHrdParamsPresent;

    if (input.generalDecodingUnitHrdParamsPresent)

    {

      tickDivisorMinus2 = input.tickDivisorMinus2;

    }

    bitRateScale = input.bitRateScale;

    cpbSizeScale = input.cpbSizeScale;

    if (input.generalDecodingUnitHrdParamsPresent)

    {

      cpbSizeDuScale = input.cpbSizeDuScale;

    }

    hrdCpbCntMinus1 = input.hrdCpbCntMinus1;

    return *this;

  }

};

struct HRD

{

  HRD()

  : bufferingPeriodInitialized  (false)

  , pictureTimingAvailable      (false) 

  {};

  GeneralHrdParams      generalHrdParams;

  OlsHrdParams          olsHrdParams[VVENC_MAX_TLAYER];

  bool                  bufferingPeriodInitialized;

  bool                  pictureTimingAvailable;

  SEIBufferingPeriod    bufferingPeriodSEI;

  SEIPictureTiming      pictureTimingSEI;

};

} // namespace vvenc