Method updateStatus

YUViewLib/src/ui/widgets/VideoCacheInfoWidget.cpp:93–134

}

void VideoCacheStatusWidget::updateStatus(PlaylistTreeWidget *playlist, unsigned int cacheRate)
{
  // Get all items from the playlist
  QList<playlistItem *> allItems = playlist->getAllPlaylistItems();

  // Get if caching is enabled and how much memory we can use for the cache
  QSettings settings;
  settings.beginGroup("VideoCache");
  cacheLevelMaxMB             = settings.value("ThresholdValueMB", 49).toUInt();
  const int64_t cacheLevelMax = cacheLevelMaxMB * 1000 * 1000;
  settings.endGroup();

  // Clear the old percent values
  relativeValsEnd.clear();

  // Let's find out how much space in the cache is used.
  // In combination with cacheLevelMax we also know how much space is free.
  int64_t cacheLevel = 0;
  for (int i = 0; i < allItems.count(); i++)
  {
    playlistItem *item          = allItems.at(i);
    int           nrFrames      = item->getNumberCachedFrames();
    unsigned int  frameSize     = item->getCachingFrameSize();
    int64_t       itemCacheSize = nrFrames * frameSize;
    DEBUG_CACHINGINFO("VideoCacheStatusWidget::updateStatus Item %d frames %d * size %d = %d",
                      i,
                      nrFrames,
                      frameSize,
                      (int)itemCacheSize);

    float endVal = (float)(cacheLevel + itemCacheSize) / cacheLevelMax;
    relativeValsEnd.append(endVal);
    cacheLevel += itemCacheSize;
  }

  // Save the values that will be shown as text
  cacheLevelMB          = cacheLevel / 1000000;
  cacheRateInBytesPerMs = cacheRate;

  // Also redraw if the values were updated
  update();
}

/// ------------------------- VideoCacheInfoWidget -----------------------