public async Task StartCameraAsync(int delay = 0)
{
_running = true;
_capture = new VideoCapture(0);
_lastFrame = DateTime.Now;
while (_running)
{
lock (_sync)
{
if (_capture?.IsDisposed ?? true)
{
return;
}
using (var mat = new Mat())
{
_capture.Read(mat);
OnNewImage?.Invoke(this, mat.Clone());
}
FramesPerSecond = 1 / (DateTime.Now - _lastFrame).TotalSeconds;
_lastFrame = DateTime.Now;
}
if (_running && delay > 0)
{
await Task.Delay(delay);
}
}
}
// You can get at least 2 notifications for each new image file. One when it is
// created and on when it is written to. The client (main UI) must be able to handle that.
private void FileChanged(object sender, FileSystemEventArgs e)
{
if (e.ChangeType == WatcherChangeTypes.Changed)
{
if (null != OnNewImage)
{
OnNewImage.Invoke(cameraData, e.FullPath);
}
}
}
