标签：item img show 使用 mon count() send cts moni
公司最近在做人脸识别，用到了videoSourcePlayer 但是引入了AForge.dll之后，工具箱中并没有videoSourcePlayer，这时就需要自己添加选项卡了。很简单几步就能完成。
首先右键工具箱--->添加选项卡
名字随便起，我里就叫AForge，然后选中选项卡右键选择项
选择dll，点击OK
再次点击添加到选项卡中
就OK了。
然后是控件的使用。将videoSourcePlayer拖到winform中。进入后台代码中
private FilterInfoCollection videoDevices; //获取摄像头 private void Form1_Load(object sender, EventArgs e) { try { // 枚举所有视频输入设备 videoDevices = new FilterInfoCollection(FilterCategory.VideoInputDevice); if (videoDevices.Count == 0) throw new ApplicationException(); foreach (FilterInfo device in videoDevices) { comboBox1.Items.Add(device.Name); } //下拉框用来更换摄像头 comboBox1.SelectedIndex = 0; } catch (ApplicationException) { comboBox1.Items.Add("未发现摄像头"); comboBox1.SelectedIndex = 0; videoDevices = null; } }
//关闭摄像头 private void button2_Click(object sender, EventArgs e) { if (videoSourcePlayer != null && videoSourcePlayer.IsRunning) { videoSourcePlayer.SignalToStop(); videoSourcePlayer.WaitForStop(); } } //打开摄像头 private void button1_Click(object sender, EventArgs e) { button2_Click(null, null); if (comboBox1.SelectedItem.ToString() == "未发现摄像头") { MessageBox.Show("未发现摄像头", "错误提示", MessageBoxButtons.OK, MessageBoxIcon.Hand); return; } VideoCaptureDevice videoSource = new VideoCaptureDevice(videoDevices[comboBox1.SelectedIndex].MonikerString); videoSource.VideoResolution = videoSource.VideoCapabilities[comboBox2.SelectedIndex]; videoSourcePlayer.VideoSource = videoSource; videoSourcePlayer.Start(); }
//换摄像头 private void comboBox1_SelectedIndexChanged(object sender, EventArgs e) { if (comboBox1.SelectedItem.ToString() == "未发现摄像头") { comboBox2.Items.Add("未发现摄像头"); comboBox2.SelectedIndex = 0; return; } VideoCaptureDevice videoSource = new VideoCaptureDevice(videoDevices[comboBox1.SelectedIndex].MonikerString); if (videoSource.VideoCapabilities.Count() == 0) { comboBox2.Items.Add("摄像头异常"); comboBox2.SelectedIndex = 0; return; } comboBox2.Items.Clear(); foreach (AForge.Video.DirectShow.VideoCapabilities FBL in videoSource.VideoCapabilities) { comboBox2.Items.Add(FBL.FrameSize.Width + "*" + FBL.FrameSize.Height); } comboBox2.SelectedIndex = 0; button1_Click(null, null); }
总共就4个方法，首先获取摄像头，然后 打开摄像头 ，关闭摄像头，在更换摄像头中有获取分辨率的方法，这样就能打摄像头并在videoSourcePlayer中看到视频了
需要获取当前画面，就调用
Bitmap bitmap = videoSourcePlayer.GetCurrentVideoFrame();
基本上在videoSourcePlayer的方法中都有，就不赘叙了。
winform 加载AForge.dll中的videoSourcePlayer。
标签：item img show 使用 mon count() send cts moni
原文地址：https://www.cnblogs.com/helloliu/p/11872311.html
