视频、图像等开发资料

C#使用Aforge.net framework采集摄像头视频

(2010-08-20 22:24:32)

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对于视频编程，网络上的东西不是很好找，摄像头算是比较初级的东东了，我查了很多资料，才算是有一点结果，现在把摄像头采集程序代码与大家分享一下。（vs2008编译通过）

其中，Aforge.net下载地址http://www.aforgenet.com/framework/

下载lib之后，引用就可以了

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using AForge.Video;
using AForge.Video.DirectShow;

namespace 视频
{
publicpartial class Form1 : Form
{
private bool DeviceExist = false;
private FilterInfoCollection videoDevices;
private VideoCaptureDevice videoSource = null;
private Timer timer1 = new Timer();
public Form1()
{
InitializeComponent();
}

private void Form1_Load(object sender, EventArgs e)
{
getCamList();
}

private voidgetCamList()
{
try
{
videoDevices = newFilterInfoCollection(FilterCategory.VideoInputDevice);
comboBox1.Items.Clear();
if (videoDevices.Count ==0)
throw newApplicationException();
DeviceExist =true;
foreach (FilterInfo device invideoDevices)
{
comboBox1.Items.Add(device.Name);
}
comboBox1.SelectedIndex = 0; //make dafault to firstcam
}
catch(ApplicationException)
{
DeviceExist =false;
comboBox1.Items.Add("No capture device on yoursystem");
}
}

private void CloseVideoSource()
{
if (!(videoSource ==null))
if (videoSource.IsRunning)
{
videoSource.SignalToStop();
videoSource = null;
}
}

private void video_NewFrame(object sender, NewFrameEventArgseventArgs)
{
Bitmap img =(Bitmap)eventArgs.Frame.Clone(); //do processinghere
pictureBox1.Image =img;
//pictureBox1.Image.
}

private void timer1_Tick(object sender, EventArgs e)
{
label2.Text = "Device running... " +videoSource.FramesReceived.ToString() + " FPS";
}

private void Form1_FormClosed(object sender, FormClosedEventArgse)
{
CloseVideoSource();
}

private void btnPlay_Click(object sender, EventArgs e)
{
if (DeviceExist)
{
videoSource = newVideoCaptureDevice(videoDevices[comboBox1.SelectedIndex].MonikerString);
videoSource.NewFrame += newNewFrameEventHandler(video_NewFrame);
CloseVideoSource();
videoSource.DesiredFrameSize = new Size(pictureBox1.Width,pictureBox1.Height);
//videoSource.DesiredFrameSize = new Size(353, 290);
//videoSource.DesiredFrameRate =10;
videoSource.Start();
label2.Text = "Device running...";
timer1.Enabled = true;
}
else
{
label2.Text = "Error: No Device selected.";
}
}

private void btnStop_Click(object sender, EventArgs e)
{
if (videoSource.IsRunning)
{
timer1.Enabled = false;
CloseVideoSource();
label2.Text = "Device stopped.";
}
}

private void btnExit_Click(object sender, EventArgs e)
{
CloseVideoSource();
this.Dispose();
}

}
}