Method loadFrameDifference

YUViewLib/src/video/videoHandlerDifference.cpp:106–137

}

void videoHandlerDifference::loadFrameDifference(int frameIndex, bool)
{
  // Calculate the difference between the inputVideos
  if (!inputsValid())
    return;

  differenceInfoList.clear();

  // Check if the second item is a video and the first one is not. In that case,
  // make sure that the right frame is loaded for the video item.
  videoHandler *video0 = dynamic_cast<videoHandler *>(inputVideo[0].data());
  videoHandler *video1 = dynamic_cast<videoHandler *>(inputVideo[1].data());
  if (video0 == nullptr && video1 != nullptr && video1->getCurrentImageIndex() != frameIndex)
    video1->loadFrame(frameIndex);

  // Calculate the difference
  QImage newFrame = inputVideo[0]->calculateDifference(inputVideo[1],
                                                       frameIndex,
                                                       frameIndex,
                                                       differenceInfoList,
                                                       amplificationFactor,
                                                       markDifference);

  if (!newFrame.isNull())
  {
    // The new difference frame is ready
    currentImageIndex = frameIndex;
    currentImageSetMutex.lock();
    currentImage = newFrame;
    currentImageSetMutex.unlock();
  }
}

bool videoHandlerDifference::inputsValid() const
{