ArcSoftFace

        public void Start() {
            if(_captureDevice == null)
            {
                requestStop = false;
                //使用USB摄像机识别
                _captureDevice = GetCaptureDevice();
                //使用本地Resources目录下的720p.avi文件识别测试
                //_captureDevice = GetFileVideoSource();
                _captureDevice.NewFrame += _captureDevice_NewFrame; ;
                _captureDevice.Start();
            }
        }

        private void _captureDevice_NewFrame(object sender, NewFrameEventArgs eventArgs)
        {
            if (requestStop) return;
            Bitmap newFrame = (Bitmap)eventArgs.Frame.Clone();
            //如果使用视频文件请注释下面的这行代码，表示不对图像进行水平翻转
            newFrame.RotateFlip(RotateFlipType.Rotate180FlipY);
            lock (sync)
            {
                if (currentFrame != null)
                {
                    currentFrame.Dispose();
                    currentFrame = null;
                }
                currentFrame = newFrame;
                _fps.Invoke(sender, newFrame);
            }
        }