BitstreamExtractorApp.h

/* The copyright in this software is being made available under the BSD
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 * Copyright (c) 2010-2023, ITU/ISO/IEC
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#ifndef __BITSTREAMEXTRACTORAPP__
#define __BITSTREAMEXTRACTORAPP__

#pragma once

#include <stdio.h>
#include <fstream>
#include <iostream>

#include "CommonLib/CommonDef.h"
#include "BitstreamExtractorAppCfg.h"
#include "CommonLib/ParameterSetManager.h"
#include "DecoderLib/NALread.h"
#include "VLCReader.h"
#include "VLCWriter.h"

#include "SEIread.h"
#include "SEIwrite.h"
class BitstreamExtractorApp : public BitstreamExtractorAppCfg
{

public:
  BitstreamExtractorApp();
  virtual ~BitstreamExtractorApp         ()  {}

  uint32_t  decode            (); ///< main decoding function

protected:
  void xPrintVPSInfo (VPS *vps);
  void xPrintSubPicInfo (PPS *pps);
  void xRewriteSPS (SPS &targetSPS, const SPS &sourceSPS, SubPic &subPic);
  void xRewritePPS (PPS &targetPPS, const PPS &sourcePPS, const SPS &sourceSPS, SubPic &subPic);
  bool xCheckSEIFiller(SEIMessages SEIs, int targetSubPicId, bool &rmAllFillerInSubpicExt, bool lastSliceWritten);

  Slice xParseSliceHeader(InputNALUnit &nalu);
  bool  xCheckSliceSubpicture(Slice &slice, int subPicId);
  void xReadPicHeader(InputNALUnit &nalu);
  bool xIsTargetOlsIncludeAllVclLayers();
  bool xCheckSEIsSubPicture(SEIMessages& SEIs, InputNALUnit& nalu, std::ostream& out, int subpicId, VPS *vps);

  void xSetSPSUpdated(int spsId)   { return m_updatedSPSList.push_back(spsId); }
  bool xIsSPSUpdate(int spsId)     { return (std::find(m_updatedSPSList.begin(),m_updatedSPSList.end(), spsId) != m_updatedSPSList.end()); }
  void xClearSPSUpdated(int spsId) { m_updatedSPSList.erase(std::remove(m_updatedSPSList.begin(), m_updatedSPSList.end(), spsId)); };

  bool xCheckNumSubLayers(InputNALUnit &nalu, VPS *vps);

  void xWriteVPS(VPS *vps, std::ostream& out, int layerId, int temporalId);
  void xWriteSPS(SPS *sps, std::ostream& out, int layerId, int temporalId);
  void xWritePPS(PPS *pps, std::ostream& out, int layerId, int temporalId);

  ParameterSetManager   m_parameterSetManager;
  HLSyntaxReader        m_hlSynaxReader;
  HLSWriter             m_hlSyntaxWriter;
  SEIReader             m_seiReader;
  SEIWriter             m_seiWriter;
  HRD                   m_hrd;

  int                   m_vpsId;
  bool                  m_removeTimingSEI;

  PicHeader             m_picHeader;
  int                   m_prevTid0Poc;
  int                   m_prevPicPOC;
  std::vector<int>      m_updatedVPSList;
  std::vector<int>      m_updatedSPSList;
  std::vector<int>      m_updatedPPSList;
};

#endif // __BITSTREAMEXTRACTORAPP__