Method parseAndAddNALUnit

YUViewLib/src/parser/HEVC/ParserAnnexBHEVC.cpp:272–642

}

ParserAnnexB::ParseResult
ParserAnnexBHEVC::parseAndAddNALUnit(int                                           nalID,
                                     const ByteVector &                            data,
                                     std::optional<BitratePlotModel::BitrateEntry> bitrateEntry,
                                     std::optional<pairUint64> nalStartEndPosFile,
                                     std::shared_ptr<TreeItem> parent)
{
  ParserAnnexB::ParseResult parseResult;

  if (nalID == -1 && data.empty())
  {
    if (curFramePOC != -1)
    {
      // Save the info of the last frame
      if (!this->addFrameToList(curFramePOC, curFrameFileStartEndPos, curFrameIsRandomAccess))
      {
        throw std::logic_error("Error - POC " + std::to_string(curFramePOC) +
                               " alread in the POC list.");
      }
      if (curFrameFileStartEndPos)
        DEBUG_HEVC("ParserAnnexBHEVC::parseAndAddNALUnit Adding start/end "
                   << curFrameFileStartEndPos->first << "/" << curFrameFileStartEndPos->second
                   << " - POC " << curFramePOC << (curFrameIsRandomAccess ? " - ra" : ""));
      else
        DEBUG_HEVC("ParserAnnexBHEVC::parseAndAddNALUnit Adding start/end NA/NA - POC "
                   << curFramePOC << (curFrameIsRandomAccess ? " - ra" : ""));
    }
    // The file ended
    return parseResult;
  }

  // Use the given tree item. If it is not set, use the nalUnitMode (if active).
  // Create a new TreeItem root for the NAL unit. We don't set data (a name) for this item
  // yet. We want to parse the item and then set a good description.
  std::shared_ptr<TreeItem> nalRoot;
  if (parent)
    nalRoot = parent->createChildItem();
  else if (packetModel->rootItem)
    nalRoot = packetModel->rootItem->createChildItem();

  if (nalRoot)
    ParserAnnexB::logNALSize(data, nalRoot, nalStartEndPosFile);

  reader::SubByteReaderLogging reader(data, nalRoot, "", getStartCodeOffset(data));

  std::string specificDescription;
  auto        nalHEVC = std::make_shared<NalUnitHEVC>(nalID, nalStartEndPosFile);

  bool        first_slice_segment_in_pic_flag = false;
  bool        currentSliceIntra               = false;
  std::string currentSliceType;
  try
  {
    nalHEVC->header.parse(reader);
    specificDescription = " " + NalTypeMapper.getName(nalHEVC->header.nal_unit_type);

    if (nalHEVC->header.nal_unit_type == NalType::VPS_NUT)
    {