Method initializeTimestamps

app/src/CSV/Player.cpp:316–349

* @brief Detects the CSV timestamp format and initializes the cache. */

 * @brief Detects the CSV timestamp format and initializes the cache.
 */
void CSV::Player::initializeTimestamps()
{
  Q_ASSERT(!m_csvData.isEmpty());
  Q_ASSERT(m_csvFile.isOpen());

  bool error            = false;
  QString firstCell     = getCellValue(1, 0, error);
  double firstTimestamp = error ? -1.0 : getTimestampSeconds(firstCell);

  if (firstTimestamp >= 0.0) {
    m_timestampCache.clear();
    m_timestampCache.reserve(m_csvData.count());

    for (int i = 0; i < m_csvData.count(); ++i) {
      bool err     = false;
      QString cell = getCellValue(i, 0, err);
      double ts    = err ? 0.0 : getTimestampSeconds(cell);
      m_timestampCache.append(ts);
    }

    m_useHighPrecisionTimestamps = true;
    m_startTimestampSeconds      = (m_timestampCache.size() > 1) ? m_timestampCache[1] : 0.0;
    return;
  }

  if (getDateTime(1).isValid()) {
    m_useHighPrecisionTimestamps = false;
    m_timestampCache.clear();
    return;
  }

  m_useHighPrecisionTimestamps = false;
  m_timestampCache.clear();
}

/**
 * @brief Opens the CSV at filePath and prepares it for playback.