public async void StartBackgroundJob(object sender, DoWorkEventArgs e)
{
while (!_backgroundWorker.CancellationPending)
{
IVideoFrame frame = await QueryFrameAsync();
if (frame != null)
{
_currentFrame = frame;
IVideoFrame filteredFrame = frame.Clone();
if (_videoFilters != null)
{
foreach (IVideoFilter filter in _videoFilters)
{
filter.Filter(filteredFrame);
}
}
_currentFilteredFrame = filteredFrame;
_currentFrameTag = _frameTagCounter++;
int progress = (int)(256 * frame.Timestamp / _videoProperties.Duration);
if (progress != _progress)
{
_progress = progress;
PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(nameof(Progress)));
}
if (frame.Timestamp != _position)
{
_position = frame.Timestamp;
PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(nameof(Position)));
}
}
}
}
