winform 加载AForge.dll中的videoSourcePlayer。
2021-01-29 04:12
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 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
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);
}
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文章标题：winform 加载AForge.dll中的videoSourcePlayer。
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