mp4_generic.h

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#pragma once
#include "mp4.h"

namespace MP4 {
  class MFHD: public Box {
    public:
      MFHD();
      void setSequenceNumber(uint32_t newSequenceNumber);
      uint32_t getSequenceNumber();
      std::string toPrettyString(uint32_t indent = 0);
  };
  //MFHD Box

  class MOOF: public containerBox {
    public:
      MOOF();
  };
  //MOOF Box

  class TRAF: public Box {
    public:
      TRAF();
      uint32_t getContentCount();
      void setContent(Box & newContent, uint32_t no);
      Box & getContent(uint32_t no);
      std::string toPrettyString(uint32_t indent = 0);
  };
  //TRAF Box

  struct trunSampleInformation {
    uint32_t sampleDuration;
    uint32_t sampleSize;
    uint32_t sampleFlags;
    uint32_t sampleOffset;
  };
  enum trunflags {
    trundataOffset = 0x00000001,
    trunfirstSampleFlags = 0x00000004,
    trunsampleDuration = 0x00000100,
    trunsampleSize = 0x00000200,
    trunsampleFlags = 0x00000400,
    trunsampleOffsets = 0x00000800
  };
  enum sampleflags {
    noIPicture = 0x01000000,
    isIPicture = 0x02000000,
    noDisposable = 0x00400000,
    isDisposable = 0x00800000,
    isRedundant = 0x00100000,
    noRedundant = 0x00200000,
    noKeySample = 0x00010000,
    isKeySample = 0x00000000,
    MUST_BE_PRESENT = 0x1
  };
  std::string prettySampleFlags(uint32_t flag);
  class TRUN: public Box {
    public:
      TRUN();
      void setFlags(uint32_t newFlags);
      uint32_t getFlags();
      void setDataOffset(uint32_t newOffset);
      uint32_t getDataOffset();
      void setFirstSampleFlags(uint32_t newSampleFlags);
      uint32_t getFirstSampleFlags();
      uint32_t getSampleInformationCount();
      void setSampleInformation(trunSampleInformation newSample, uint32_t no);
      trunSampleInformation getSampleInformation(uint32_t no);
      std::string toPrettyString(uint32_t indent = 0);
  };

  enum tfhdflags {
    tfhdBaseOffset = 0x000001,
    tfhdSampleDesc = 0x000002,
    tfhdSampleDura = 0x000008,
    tfhdSampleSize = 0x000010,
    tfhdSampleFlag = 0x000020,
    tfhdNoDuration = 0x010000,
  };
  class TFHD: public Box {
    public:
      TFHD();
      void setFlags(uint32_t newFlags);
      uint32_t getFlags();
      void setTrackID(uint32_t newID);
      uint32_t getTrackID();
      void setBaseDataOffset(uint64_t newOffset);
      uint64_t getBaseDataOffset();
      void setSampleDescriptionIndex(uint32_t newIndex);
      uint32_t getSampleDescriptionIndex();
      void setDefaultSampleDuration(uint32_t newDuration);
      uint32_t getDefaultSampleDuration();
      void setDefaultSampleSize(uint32_t newSize);
      uint32_t getDefaultSampleSize();
      void setDefaultSampleFlags(uint32_t newFlags);
      uint32_t getDefaultSampleFlags();
      std::string toPrettyString(uint32_t indent = 0);
  };


  class AVCC: public Box {
    public:
      AVCC();
      void setVersion(uint32_t newVersion);
      uint32_t getVersion();
      void setProfile(uint32_t newProfile);
      uint32_t getProfile();
      void setCompatibleProfiles(uint32_t newCompatibleProfiles);
      uint32_t getCompatibleProfiles();
      void setLevel(uint32_t newLevel);
      uint32_t getLevel();
      void setSPSNumber(uint32_t newSPSNumber);
      uint32_t getSPSNumber();
      void setSPS(std::string newSPS);
      uint32_t getSPSLen();
      char * getSPS();
      void setPPSNumber(uint32_t newPPSNumber);
      uint32_t getPPSNumber();
      void setPPS(std::string newPPS);
      uint32_t getPPSLen();
      char * getPPS();
      std::string asAnnexB();
      void setPayload(std::string newPayload);
      std::string toPrettyString(uint32_t indent = 0);
  };

  struct HVCCArrayEntry {
    char arrayCompleteness;
    char nalUnitType;
    std::deque<std::string> nalUnits;
  };

  class HVCC: public Box {
    public:
      HVCC();
      void setConfigurationVersion(char newVersion);
      char getConfigurationVersion();
      void setGeneralProfileSpace(char newGeneral);
      char getGeneralProfileSpace();
      void setGeneralTierFlag(char newGeneral);
      char getGeneralTierFlag();
      void setGeneralProfileIdc(char newGeneral);
      char getGeneralProfileIdc();
      void setGeneralProfileCompatibilityFlags(unsigned long newGeneral);
      unsigned long getGeneralProfileCompatibilityFlags();
      void setGeneralConstraintIndicatorFlags(unsigned long long newGeneral);
      unsigned long long getGeneralConstraintIndicatorFlags();
      void setGeneralLevelIdc(char newGeneral);
      char getGeneralLevelIdc();
      void setMinSpatialSegmentationIdc(short newIdc);
      short getMinSpatialSegmentationIdc();
      void setParallelismType(char newType);
      char getParallelismType();
      void setChromaFormat(char newFormat);
      char getChromaFormat();
      void setBitDepthLumaMinus8(char newBitDepthLumaMinus8);
      char getBitDepthLumaMinus8();
      void setBitDepthChromaMinus8(char newBitDepthChromaMinus8);
      char getBitDepthChromaMinus8();
      void setAverageFramerate(short newFramerate);
      short getAverageFramerate();
      void setConstantFramerate(char newFramerate);
      char getConstantFramerate();
      void setNumberOfTemporalLayers(char newNumber);
      char getNumberOfTemporalLayers();
      void setTemporalIdNested(char newNested);
      char getTemporalIdNested();
      void setLengthSizeMinus1(char newLengthSizeMinus1);
      char getLengthSizeMinus1();
      void setArrays(std::deque<HVCCArrayEntry> & arrays);
      std::deque<HVCCArrayEntry> getArrays();
      std::string asAnnexB();
      void setPayload(std::string newPayload);
      std::string toPrettyString(uint32_t indent = 0);
  };

  class Descriptor{
    public:
      Descriptor();
      Descriptor(const char* pointer, const unsigned long length, const bool master = false);
      char getTag();
      void setTag(char t);
      unsigned long getDataSize();
      unsigned long getFullSize();
      void resize(unsigned long t);
      char* getData();
      std::string toPrettyString(uint32_t indent = 0);
    protected:
      unsigned long size;
      char* data;
      bool master;
  };

  class DSDescriptor: public Descriptor{
    public:
      DSDescriptor (const char* pointer, const unsigned long length, const bool master = false);
      std::string toPrettyString(uint32_t indent = 0);
      std::string toString(); 
  };

  class DCDescriptor: public Descriptor{
    public:
      DCDescriptor (const char* pointer, const unsigned long length, const bool master = false);
      bool isAAC(); 
      std::string getCodec();
      DSDescriptor getSpecific();
      std::string toPrettyString(uint32_t indent = 0);
  };

  class ESDescriptor: public Descriptor{
    public:
      ESDescriptor (const char* pointer, const unsigned long length, const bool master = false);
      DCDescriptor getDecoderConfig();
      std::string toPrettyString(uint32_t indent = 0);
  };



  class SLCDescriptor: public Descriptor{
  };

  class ESDS: public fullBox {
    public:
      ESDS();
      ESDS(std::string init);
      ESDescriptor getESDescriptor();
      bool isAAC();
      std::string getCodec();
      std::string getInitData();
      std::string toPrettyString(uint32_t indent = 0);
  };

  class DAC3: public Box {
    public:
      DAC3(unsigned int rate, unsigned int channels);
      char getSampleRateCode();//2bits
      void setSampleRateCode(char newVal);//2bits
      char getBitStreamIdentification();//5bits
      void setBitStreamIdentification(char newVal);//5bits
      char getBitStreamMode();//3 bits
      void setBitStreamMode(char newVal);//3 bits
      char getAudioConfigMode();//3 bits
      void setAudioConfigMode(char newVal);//3 bits
      bool getLowFrequencyEffectsChannelOn();//1bit
      void setLowFrequencyEffectsChannelOn(bool newVal);//1bit
      char getFrameSizeCode();//6bits
      void setFrameSizeCode(char newVal);//6bits
      std::string toPrettyString(uint32_t indent = 0);
  };

  class FTYP: public Box {
    public:
      FTYP(bool fillDefaults = true);
      void setMajorBrand(const char * newMajorBrand);
      std::string getMajorBrand();
      void setMinorVersion(const char * newMinorVersion);
      std::string getMinorVersion();
      size_t getCompatibleBrandsCount();
      void setCompatibleBrands(const char * newCompatibleBrand, size_t index);
      std::string getCompatibleBrands(size_t index);
      std::string toPrettyString(uint32_t indent = 0);
  };

  class STYP: public FTYP {
    public:
      STYP(bool fillDefaults = true);
      std::string toPrettyString(uint32_t indent = 0);
  };

  class MOOV: public containerBox {
    public:
      MOOV();
  };

  class MVEX: public containerBox {
    public:
      MVEX();
  };

  class TREX: public fullBox {
    public:
      TREX(unsigned int trackId = 0);
      void setTrackID(uint32_t newTrackID);
      uint32_t getTrackID();
      void setDefaultSampleDescriptionIndex(uint32_t newDefaultSampleDescriptionIndex);
      uint32_t getDefaultSampleDescriptionIndex();
      void setDefaultSampleDuration(uint32_t newDefaultSampleDuration);
      uint32_t getDefaultSampleDuration();
      void setDefaultSampleSize(uint32_t newDefaultSampleSize);
      uint32_t getDefaultSampleSize();
      void setDefaultSampleFlags(uint32_t newDefaultSampleFlags);
      uint32_t getDefaultSampleFlags();
      std::string toPrettyString(uint32_t indent = 0);
  };


  class MFRA: public containerBox {
    public:
      MFRA();
  };

  class TRAK: public containerBox {
    public:
      TRAK();
  };

  class MDIA: public containerBox {
    public:
      MDIA();
  };

  class MINF: public containerBox {
    public:
      MINF();
  };

  class DINF: public containerBox {
    public:
      DINF();
  };

  class MFRO: public Box {
    public:
      MFRO();
      void setSize(uint32_t newSize);
      uint32_t getSize();
      std::string toPrettyString(uint32_t indent = 0);
  };

  class HDLR: public Box {
    public:
      HDLR(std::string & type, std::string name);
      void setHandlerType(const char * newHandlerType);
      std::string getHandlerType();
      void setName(std::string newName);
      std::string getName();
      std::string toPrettyString(uint32_t indent = 0);
  };

  class VMHD: public fullBox {
    public:
      VMHD();
      void setGraphicsMode(uint16_t newGraphicsMode);
      uint16_t getGraphicsMode();
      uint32_t getOpColorCount();
      void setOpColor(uint16_t newOpColor, size_t index);
      uint16_t getOpColor(size_t index);
      std::string toPrettyString(uint32_t indent = 0);
  };

  class SMHD: public fullBox {
    public:
      SMHD();
      void setBalance(int16_t newBalance);
      int16_t getBalance();
      std::string toPrettyString(uint32_t indent = 0);
  };

  class HMHD: public fullBox {
    public:
      HMHD();
      void setMaxPDUSize(uint16_t newMaxPDUSize);
      uint16_t getMaxPDUSize();
      void setAvgPDUSize(uint16_t newAvgPDUSize);
      uint16_t getAvgPDUSize();
      void setMaxBitRate(uint32_t newMaxBitRate);
      uint32_t getMaxBitRate();
      void setAvgBitRate(uint32_t newAvgBitRate);
      uint32_t getAvgBitRate();
      std::string toPrettyString(uint32_t indent = 0);
  };

  class NMHD: public fullBox {
    public:
      NMHD();
      std::string toPrettyString(uint32_t indent = 0);
  };

  class MEHD: public fullBox {
    public:
      MEHD();
      void setFragmentDuration(uint64_t newFragmentDuration);
      uint64_t getFragmentDuration();
      std::string toPrettyString(uint32_t indent = 0);
  };

  class STBL: public containerBox {
    public:
      STBL();
  };

  class URL: public fullBox {
    public:
      URL();
      void setLocation(std::string newLocation);
      std::string getLocation();
      std::string toPrettyString(uint32_t indent = 0);
  };

  class URN: public fullBox {
    public:
      URN();
      void setName(std::string newName);
      std::string getName();
      void setLocation(std::string newLocation);
      std::string getLocation();
      std::string toPrettyString(uint32_t indent = 0);
  };

  class DREF: public fullBox {
    public:
      DREF();
      uint32_t getEntryCount();
      void setDataEntry(fullBox & newDataEntry, size_t index);
      Box & getDataEntry(size_t index);
      std::string toPrettyString(uint32_t indent = 0);
  };

  class MVHD: public fullBox {
    public:
      MVHD(long long unsigned int duration);
      void setCreationTime(uint64_t newCreationTime);
      uint64_t getCreationTime();
      void setModificationTime(uint64_t newModificationTime);
      uint64_t getModificationTime();
      void setTimeScale(uint32_t newTimeScale);
      uint32_t getTimeScale();
      void setDuration(uint64_t newDuration);
      uint64_t getDuration();
      void setRate(uint32_t newRate);
      uint32_t getRate();
      void setVolume(uint16_t newVolume);
      uint16_t getVolume();
      uint32_t getMatrixCount();
      void setMatrix(int32_t newMatrix, size_t index);
      int32_t getMatrix(size_t index);
      void setTrackID(uint32_t newTrackID);
      uint32_t getTrackID();
      std::string toPrettyString(uint32_t indent = 0);
  };

  struct TFRAEntry {
    uint64_t time;
    uint64_t moofOffset;
    uint32_t trafNumber;
    uint32_t trunNumber;
    uint32_t sampleNumber;
  };

  class TFRA: public fullBox {
    public:
      TFRA();
      void setTrackID(uint32_t newTrackID);
      uint32_t getTrackID();
      void setLengthSizeOfTrafNum(char newVal);
      char getLengthSizeOfTrafNum();
      void setLengthSizeOfTrunNum(char newVal);
      char getLengthSizeOfTrunNum();
      void setLengthSizeOfSampleNum(char newVal);
      char getLengthSizeOfSampleNum();
      void setNumberOfEntry(uint32_t newNumberOfEntry);
      uint32_t getNumberOfEntry();
      void setTFRAEntry(TFRAEntry newTFRAEntry, uint32_t no);
      TFRAEntry & getTFRAEntry(uint32_t no);
      uint32_t getTFRAEntrySize();
      std::string toPrettyString(uint32_t indent = 0);
  };

  class TKHD: public fullBox {
    public:
      TKHD(uint32_t trackId, uint64_t duration, uint32_t width, uint32_t height);
      TKHD(DTSC::Track & track, bool fragmented);

      void setCreationTime(uint64_t newCreationTime);
      uint64_t getCreationTime();
      void setModificationTime(uint64_t newModificationTime);
      uint64_t getModificationTime();
      void setTrackID(uint32_t newTrackID);
      uint32_t getTrackID();
      void setDuration(uint64_t newDuration);
      uint64_t getDuration();

      void setLayer(uint16_t newLayer);
      uint16_t getLayer();
      void setAlternateGroup(uint16_t newAlternateGroup);
      uint16_t getAlternateGroup();

      void setVolume(uint16_t newVolume);
      uint16_t getVolume();
      uint32_t getMatrixCount();
      void setMatrix(int32_t newMatrix, size_t index);
      int32_t getMatrix(size_t index);

      void setWidth(double newWidth);
      double getWidth();
      void setHeight(double newHeight);
      double getHeight();
      std::string toPrettyString(uint32_t indent = 0);
    protected:
      void initialize();
  };

  class MDHD: public fullBox {
    public:
      MDHD(uint64_t duration);
      void setCreationTime(uint64_t newCreationTime);
      uint64_t getCreationTime();
      void setModificationTime(uint64_t newModificationTime);
      uint64_t getModificationTime();
      void setTimeScale(uint32_t newTimeScale);
      uint32_t getTimeScale();
      void setDuration(uint64_t newDuration);
      uint64_t getDuration();
      void setLanguage(uint16_t newLanguage);
      uint16_t getLanguage();
      std::string toPrettyString(uint32_t indent = 0);
  };

  struct STTSEntry {
    uint32_t sampleCount;
    uint32_t sampleDelta;
  };

  class STTS: public fullBox {
    public:
      STTS(char v = 1, uint32_t f = 0);
      void setEntryCount(uint32_t newEntryCount);
      uint32_t getEntryCount();
      void setSTTSEntry(STTSEntry newSTTSEntry, uint32_t no);
      STTSEntry getSTTSEntry(uint32_t no);
      std::string toPrettyString(uint32_t indent = 0);
  };

  struct CTTSEntry {
    uint32_t sampleCount;
    uint32_t sampleOffset;
  };

  class CTTS: public fullBox {
    public:
      CTTS();
      void setEntryCount(uint32_t newEntryCount);
      uint32_t getEntryCount();
      void setCTTSEntry(CTTSEntry newCTTSEntry, uint32_t no);
      CTTSEntry getCTTSEntry(uint32_t no);
      std::string toPrettyString(uint32_t indent = 0);
  };

  class STSCEntry {
    public:
      STSCEntry(unsigned int _first = 0, unsigned int _count = 0, unsigned int _index = 0);
      uint32_t firstChunk;
      uint32_t samplesPerChunk;
      uint32_t sampleDescriptionIndex;
  };

  class STSC: public fullBox {
    public:
      STSC(char v = 1, uint32_t f = 0);
      void setEntryCount(uint32_t newEntryCount);
      uint32_t getEntryCount();
      void setSTSCEntry(STSCEntry newSTSCEntry, uint32_t no);
      STSCEntry getSTSCEntry(uint32_t no);
      std::string toPrettyString(uint32_t indent = 0);
  };

  class STCO: public fullBox {
    public:
      STCO(char v = 1, uint32_t f = 0);
      void setEntryCount(uint32_t newEntryCount);
      uint32_t getEntryCount();
      void setChunkOffset(uint32_t newChunkOffset, uint32_t no);
      uint32_t getChunkOffset(uint32_t no);
      std::string toPrettyString(uint32_t indent = 0);
  };

  class CO64: public fullBox {
    public:
      CO64(char v = 1, uint32_t f = 0);
      void setEntryCount(uint32_t newEntryCount);
      uint32_t getEntryCount();
      void setChunkOffset(uint64_t newChunkOffset, uint32_t no);
      uint64_t getChunkOffset(uint32_t no);
      std::string toPrettyString(uint32_t indent = 0);
  };

  class STSZ: public fullBox {
    public:
      STSZ(char v = 1, uint32_t f = 0);
      void setSampleSize(uint32_t newSampleSize);
      uint32_t getSampleSize();
      void setSampleCount(uint32_t newSampleCount);
      uint32_t getSampleCount();
      void setEntrySize(uint32_t newEntrySize, uint32_t no);
      uint32_t getEntrySize(uint32_t no);
      std::string toPrettyString(uint32_t indent = 0);
  };

  class SampleEntry: public Box {
    public:
      SampleEntry();
      void setDataReferenceIndex(uint16_t newDataReferenceIndex);
      uint16_t getDataReferenceIndex();
      std::string toPrettySampleString(uint32_t index);
  };

  class CLAP: public Box { //CleanApertureBox
    public:
      CLAP();
      void setCleanApertureWidthN(uint32_t newVal);
      uint32_t getCleanApertureWidthN();
      void setCleanApertureWidthD(uint32_t newVal);
      uint32_t getCleanApertureWidthD();
      void setCleanApertureHeightN(uint32_t newVal);
      uint32_t getCleanApertureHeightN();
      void setCleanApertureHeightD(uint32_t newVal);
      uint32_t getCleanApertureHeightD();
      void setHorizOffN(uint32_t newVal);
      uint32_t getHorizOffN();
      void setHorizOffD(uint32_t newVal);
      uint32_t getHorizOffD();
      void setVertOffN(uint32_t newVal);
      uint32_t getVertOffN();
      void setVertOffD(uint32_t newVal);
      uint32_t getVertOffD();
      std::string toPrettyString(uint32_t indent = 0);
  };

  class PASP: public Box { //PixelAspectRatioBox
    public:
      PASP();
      void setHSpacing(uint32_t newVal);
      uint32_t getHSpacing();
      void setVSpacing(uint32_t newVal);
      uint32_t getVSpacing();
      std::string toPrettyString(uint32_t indent = 0);
  };

  class VisualSampleEntry: public SampleEntry {
    public:
      VisualSampleEntry();
      VisualSampleEntry(DTSC::Track & track);
      void initialize();
      void setCodec(const char * newCodec);
      void setWidth(uint16_t newWidth);
      uint16_t getWidth();
      void setHeight(uint16_t newHeight);
      uint16_t getHeight();
      void setHorizResolution(uint32_t newHorizResolution);
      uint32_t getHorizResolution();
      void setVertResolution(uint32_t newVertResolution);
      uint32_t getVertResolution();
      void setFrameCount(uint16_t newFrameCount);
      uint16_t getFrameCount();
      void setCompressorName(std::string newCompressorName);
      std::string getCompressorName();
      void setDepth(uint16_t newDepth);
      uint16_t getDepth();
      Box & getCLAP();
      void setCLAP(Box & clap);
      Box & getPASP();
      void setPASP(Box & pasp);
      std::string toPrettyVisualString(uint32_t index = 0, std::string = "");
  };

  class AudioSampleEntry: public SampleEntry {
    public:
      AudioSampleEntry();
      AudioSampleEntry(DTSC::Track & track);
      void initialize();
      void setCodec(const char * newCodec);
      void setChannelCount(uint16_t newChannelCount);
      uint16_t getChannelCount();
      void setSampleSize(uint16_t newSampleSize);
      uint16_t getSampleSize();
      void setPreDefined(uint16_t newPreDefined);
      uint16_t getPreDefined();
      void setSampleRate(uint32_t newSampleRate);
      uint16_t toAACInit();
      uint32_t getSampleRate();
      void setCodecBox(Box & newBox);
      Box & getCodecBox();
      Box & getSINFBox(); /*LTS*/
      std::string toPrettyAudioString(uint32_t indent = 0, std::string name = "");
  };

  class MP4A: public AudioSampleEntry {
    public:
      MP4A();
      std::string toPrettyString(uint32_t indent = 0);
  };

  class AAC: public AudioSampleEntry {
    public:
      AAC();
      std::string toPrettyString(uint32_t indent = 0);
  };

  class HEV1: public VisualSampleEntry {
    public:
      HEV1();
      std::string toPrettyString(uint32_t indent = 0);
  };

  class AVC1: public VisualSampleEntry {
    public:
      AVC1();
      std::string toPrettyString(uint32_t indent = 0);
  };

  class H264: public VisualSampleEntry {
    public:
      H264();
      std::string toPrettyString(uint32_t indent = 0);
  };

  class FIEL: public Box {
    public:
      FIEL();
      void setTotal(char newTotal);
      char getTotal();
      void setOrder(char newOrder);
      char getOrder();
      std::string toPrettyString(uint32_t indent = 0);
  };

  class STSD: public fullBox {
    public:
      STSD(char v = 1, uint32_t f = 0);
      void setEntryCount(uint32_t newEntryCount);
      uint32_t getEntryCount();
      void setEntry(Box & newContent, uint32_t no);
      Box & getEntry(uint32_t no);
      std::string toPrettyString(uint32_t indent = 0);
  };

  class GMHD: public containerBox {
    public:
      GMHD();
  };

  class TREF: public containerBox {
    public:
      TREF();
  };

  class EDTS: public containerBox {
    public:
      EDTS();
  };

  class UDTA: public containerBox {
    public:
      UDTA();
  };

  class STSS: public fullBox {
    public:
      STSS(char v = 1, uint32_t f = 0);
      void setEntryCount(uint32_t newVal);
      uint32_t getEntryCount();
      void setSampleNumber(uint32_t newVal, uint32_t index);
      uint32_t getSampleNumber(uint32_t index);
      std::string toPrettyString(uint32_t indent = 0);
  };

  class META: public containerFullBox {
    public:
      META();
      std::string toPrettyString(uint32_t indent = 0);
  };

  class ELST: public fullBox {
    public:
      ELST();
      void setCount(uint32_t newVal);
      uint32_t getCount();
      void setSegmentDuration(uint64_t newVal);
      uint64_t getSegmentDuration();
      void setMediaTime(uint64_t newVal);
      uint64_t getMediaTime();
      void setMediaRateInteger(uint16_t newVal);
      uint16_t getMediaRateInteger();
      void setMediaRateFraction(uint16_t newVal);
      uint16_t getMediaRateFraction();
      std::string toPrettyString(uint32_t indent = 0);
  };
}