完整代码
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Diagnostics;
using System.Runtime.InteropServices;
using AForge.Video;
using AForge.Video.DirectShow;
using Emgu.CV;
using Emgu.CV.CvEnum;
using Emgu.CV.Structure;
using Emgu.CV.UI;
using System.Threading;
namespace ImageProcessLearn
{
public partial class FormCameraCapture : Form
{
private int framesCaptured; //已经捕获的视频帧数
private int frameCount; //需要捕获的总帧数
private Stopwatch sw; //计时器
private VideoCaptureDevice captureAForge = null; //AForge视频捕获对象
private bool stopCapture; //是否停止捕获视频
private object lockObject = new object();
public FormCameraCapture()
{
InitializeComponent();
sw = new Stopwatch();
}
//窗体加载时，获取视频捕获设备列表
private void FormCameraCapture_Load(object sender, EventArgs e)
{
FilterInfoCollection videoDevices = new FilterInfoCollection(FilterCategory.VideoInputDevice);
if (videoDevices != null && videoDevices.Count > 0)
{
int idx = 0;
foreach (FilterInfo device in videoDevices)
{
cmbCaptureDevice.Items.Add(new DeviceInfo(device.Name, device.MonikerString, idx, FilterCategory.VideoInputDevice));
idx++;
}
cmbCaptureDevice.SelectedIndex = 0;
}
}
//当改变视频设备时，重新填充该设备对应的能力
private void cmbCaptureDevice_SelectedIndexChanged(object sender, EventArgs e)
{
if (cmbCaptureDevice.SelectedItem != null)
{
//保存原来选择的设备能力
Size oldFrameSize = new Size(0, 0);
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