Method openStatisticsFile

YUViewLib/src/playlistitem/playlistItemStatisticsFile.cpp:266–306

}

void playlistItemStatisticsFile::openStatisticsFile()
{
  // Is the background parser still running? If yes, abort it.
  if (this->backgroundParserFuture.isRunning())
  {
    // signal to background thread that we want to cancel the processing
    this->breakBackgroundAtomic.store(true);
    this->backgroundParserFuture.waitForFinished();
  }

  auto suffix = QFileInfo(this->prop.name).suffix();
  if (this->openMode == OpenMode::CSVFile ||
      (this->openMode == OpenMode::Extension && suffix == "csv"))
    this->file.reset(new stats::StatisticsFileCSV(this->prop.name, this->statisticsData));
  else if (this->openMode == OpenMode::VTMBMSFile ||
           (this->openMode == OpenMode::Extension && suffix == "vtmbmsstats"))
    this->file.reset(new stats::StatisticsFileVTMBMS(this->prop.name, this->statisticsData));
  else
    assert(false);

  connect(this->file.get(),
          &stats::StatisticsFileBase::readPOC,
          this,
          &playlistItemStatisticsFile::onPOCParsed);
  connect(this->file.get(),
          &stats::StatisticsFileBase::readPOCType,
          this,
          &playlistItemStatisticsFile::onPOCTypeParsed);

  // Run the parsing of the file in the background
  this->timer.start(1000, this);
  this->breakBackgroundAtomic.store(false);
  this->backgroundParserFuture = QtConcurrent::run(
      [=](stats::StatisticsFileBase *file) {
        file->readFrameAndTypePositionsFromFile(std::ref(this->breakBackgroundAtomic));
      },
      this->file.get());

  DEBUG_STAT(
      "playlistItemStatisticsFile::openStatisticsFile File opened. Background parsing started.");
}

// This timer event is called regularly when the background loading process is running.
void playlistItemStatisticsFile::timerEvent(QTimerEvent *event)