C# case of using AForge to implement camera recording function

This article mainly introduces the sample code for calling AForge in C# to implement camera recording. It is of great practical value. Friends who need it can refer to it

1: First download the library file>>

You can also go to the official website to find>>

Download the full code of this tutorial>>

The output of MP4 requires the use of ffmpeg-related files. The library I packaged has already been brought. , the libraries found on the official website can be found in this directory:

2: Add these references:

3: Two global variables:

//用来操作摄像头
 private VideoCaptureDevice Camera = null;
 //用来把每一帧图像编码到视频文件
 private VideoFileWriter VideoOutPut = new VideoFileWriter();


 开始代码:
 //获取摄像头列表
var devs = new FilterInfoCollection(FilterCategory.VideoInputDevice);

//实例化设备控制类(我选了第1个)
Camera = new VideoCaptureDevice(devs[0].MonikerString);

//配置录像参数(宽,高,帧率,比特率等参数)VideoCapabilities这个属性会返回摄像头支持哪些配置,从这里面选一个赋值接即可,我选了第1个
Camera.VideoResolution = Camera.VideoCapabilities[0];

//设置回调,aforge会不断从这个回调推出图像数据
Camera.NewFrame += Camera_NewFrame;

//打开摄像头
Camera.Start();

//打开录像文件(如果没有则创建,如果有也会清空),这里还有关于
VideoOutPut.Open("E:/VIDEO.MP4", 
　　　　Camera.VideoResolution.FrameSize.Width, 
　　　　Camera.VideoResolution.FrameSize.Height, 
　　　　Camera.VideoResolution.AverageFrameRate, 
　　　　VideoCodec.MPEG4, 
　　　　Camera.VideoResolution.BitCount);
给AForge输出图像数据的回调方法:
//图像缓存
private Bitmap bmp = new Bitmap(1, 1);

//摄像头输出回调
private void Camera_NewFrame(object sender, NewFrameEventArgs eventArgs)
{
 //写到文件
 VideoOutPut.WriteVideoFrame(eventArgs.Frame);
 lock (bmp)
 {
  //释放上一个缓存
  bmp.Dispose();
  //保存一份缓存
  bmp = eventArgs.Frame.Clone() as Bitmap;
 }
}

End code:

   //停摄像头
   Camera.Stop();

   //关闭录像文件,如果忘了不关闭,将会得到一个损坏的文件,无法播放
   VideoOutPut.Close();

4: Modify App.config, Some things compatible with net2.0:

##

<?xml version="1.0" encoding="utf-8"?>
<configuration>
 <startup useLegacyV2RuntimeActivationPolicy="true">
 <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.5"/>
 </startup>
 <supportedRuntime version="v2.0.50727"/>
</configuration>

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