C#实现IP摄像头的方法

本文实例讲述了C#实现IP摄像头的方法。分享给大家供大家参考。具体实现方法如下：

#region IP摄像头代码
/// <summary>
/// ip摄像头代码
/// </summary>  
//视频
private IntPtr m_hChannel;
private IntPtr m_hServer, phPlay;
public delegate void MyInvoke(string str);
public delegate void OutDelegate(IntPtr hSearch, DVSNET_FILE_TIME pFileTime, DVSNET_FILE_INFO pFileInfo, IntPtr pcontext);
//远程视频处理
public void BeforeRecordFrame(IntPtr hChannel, ref RECORD_INFO pRecordInfo, ref FRAME_HEADER pFrameHeader, IntPtr pcontext)
{
}
DVSNETClient.FileSearchCallback File_SearchCallback; //远程视频回放
public void FileSearchCallback(IntPtr hSearch, ref DVSNET_FILE_TIME pFileTime, ref DVSNET_FILE_INFO pFileInfo, IntPtr pcontext)
{
OutText(hSearch, pFileTime, pFileInfo, pcontext);  
}
public void OutText(IntPtr hSearch, DVSNET_FILE_TIME pFileTime, DVSNET_FILE_INFO pFileInfo, IntPtr pcontext)
{
 if (lvVideo.InvokeRequired)
 {
  OutDelegate outdelegate = new OutDelegate(OutText);
  this.BeginInvoke(outdelegate, new object[] { hSearch, pFileTime, pFileInfo, pcontext });
  return;
 }
 lvVideo.View = View.Details;
 lvVideo.FullRowSelect = true;
 for (int i = 0; i < pFileInfo.sFileName.Count(); i++)
 {
  ListViewItem item1 = new ListViewItem(pFileInfo.sFileName, i);
  lvVideo.Items.AddRange(new ListViewItem[] { item1 });
 }
}
private void pb_del_video_Click(object sender, EventArgs e)
{
 this.Close();
}
public void SearchNotify(int nDevType,string sServName,string sServSerial,string sUrl,IntPtr MacAddr,ushort wWebPort,ushort wDataPort,string sSubNetMask,string sGateWay,string sMultiIp,string sDNS,ushort wMultiPort,int nChCount,uint bDHCP,IntPtr pcontext)
{
 string str = Convert.ToString(wDataPort);
 //string str2 = sUrl + "(" + str + ")";
 string str2 = sUrl;
 this.AddText(str2);
}
//赋值给cmbIP
private void AddText(string str)
{
 MyInvoke method = new MyInvoke(this.AddTextToCmb);
 base.BeginInvoke(method, new object[] { str });
}
public void AddTextToCmb(string str)
{
 this.CmbIP.Items.Add(str);
}
//s搜索服务器
private void btnVideoSearck_Click(object sender, EventArgs e)
{

this.CmbIP.Items.Clear();
  errornum errornum = DVSNETClient.DVSNET_SearchServers(0xbb8, 1, new DVSNETClient.SearchNotify(this.SearchNotify), base.Handle, IntPtr.Zero);
  if (errornum == errornum.DVSNET_ERR_OK)
  {
   timerVideo.Enabled = true;
   btnVideoSearck.Enabled = false;
  }
  else
  {
  }
}
//打开链接
private void btnVideoOpen_Click(object sender, EventArgs e)
{
 string text = this.CmbIP.Text;
 string sServIp = text;
 int index = text.IndexOf('(');
 if (index != -1)
 {
  string str3 = new string(text.ToCharArray(), 0, index);
  sServIp = str3;
 }
 errornum errornum = DVSNETClient.DVSNET_OpenServer(this.EdtName.Text, sServIp, Convert.ToUInt16(this.EdtPort.Text), this.EdtUser.Text, this.EdtPassword.Text, ref this.m_hServer, 0, 0);
 this.btnVideoOpen.Enabled = false; //不能点击
 if (errornum == errornum.DVSNET_ERR_OK)
 {
  DVSNET_SERVER_INFO dvsnet_server_info = new DVSNET_SERVER_INFO();
  MessageBox.Show("打开链接成功！");
  dvsnet_server_info = new DVSNET_SERVER_INFO
  {
   lStructSize = Marshal.SizeOf(dvsnet_server_info)
  };
  DVSNETClient.DVSNET_GetServerInfo(this.m_hServer, ref dvsnet_server_info);
  // this.CmbChannel.Items.Clear();
  for (int i = 0; i < dvsnet_server_info.nChnNum; i++)
  {
   int num3 = i + 1;
   // this.CmbChannel.Items.Add(num3.ToString());
  }
  // this.CmbChannel.SelectedIndex = 0;
 }
 else
 {
  MessageBox.Show("打开链接失败,错误码为:" + errornum.ToString());
  this.btnVideoOpen.Enabled = true; //不能点击
 }
}
//关闭链接
private void btnVideoClose_Click(object sender, EventArgs e)
{
 if (this.m_hChannel != IntPtr.Zero)
 {
  MessageBox.Show("请关闭通道！再关闭链接");
 }
 else
 {
  if (this.m_hServer != IntPtr.Zero)
  {
   DVSNETClient.DVSNET_CloseServer(this.m_hServer);
   this.m_hServer = IntPtr.Zero;
   this.btnVideoOpen.Enabled = true; //不能点击
  }
 }
}
//打开通道
IntPtr selServer = IntPtr.Zero;
private void btnVideoOpenChnnel_Click(object sender, EventArgs e)
{
 this.panelVideo.Visible = true;
 this.pannelVideoTwo.Visible = false;
 if (this.m_hServer != IntPtr.Zero)
 {
  this.btnVideoOpenChnnel.Enabled = false; //不能点击
  DVSNET_CHANNEL_INFO dvsnet_channel_info = new DVSNET_CHANNEL_INFO();
  MessageBox.Show("打开通道成功！请稍候");
  dvsnet_channel_info = new DVSNET_CHANNEL_INFO
  {
   lStructSize = Marshal.SizeOf(dvsnet_channel_info),
   nProtocol = 0,
   hWndDisplay = this.panelVideo.Handle,
   bPlayStart = 1,
   dwStreamNo = 0
  };
  DVSNETClient.DVSNET_OpenChannel(this.m_hServer, Convert.ToUInt16(0), ref dvsnet_channel_info, ref this.m_hChannel);
 }
 else
 {
  MessageBox.Show("请打开链接！");
 }
}
//关闭通道
private void btnVideoCloseChnnel_Click(object sender, EventArgs e)
{
 if (this.m_hChannel != IntPtr.Zero)
 {
  DVSNETClient.DVSNET_CloseChannel(this.m_hChannel);
  MessageBox.Show("关闭通道成功！请稍候");
  this.m_hChannel = IntPtr.Zero;
  this.btnVideoOpenChnnel.Enabled = true; //不能点击
 }
}
//开始录像
private void btnVideoOn_Click(object sender, EventArgs e)
{
 try
 {
  string ss = DateTime.Now.ToString().Replace(":", "-").Replace(" ", "-").Replace("/", "-") + ".asf";  
  if (this.panelVideo.Visible == false)
  {
   MessageBox.Show("请切换到打开通道");
  }
  else
  {
   if (this.m_hChannel != IntPtr.Zero)
   {
    this.btnVideoOn.Enabled = false; //不能点击
    //DVSNETClient.DVSNET_StartRecord(this.m_hChannel, 1, FILETYPE.FILETYPE_ASF, ss, new DVSNETClient.BeforeRecordFrame(this.BeforeRecordFrame), base.Handle);
    DVSNETClient.DVSNET_StartRecord(this.m_hChannel, 1, FILETYPE.FILETYPE_ASF, ss,Before_RecordFrame, base.Handle);
   }
   else
   {
    MessageBox.Show("请打开通道！");
   }
  }
 }
 catch (Exception ex)
 {
  MessageBox.Show(ex.ToString());
 }  
}
//停止录像
private void btnStopRec_Click(object sender, EventArgs e)
{
 DVSNETClient.DVSNET_StopRecord(this.m_hChannel);
 MessageBox.Show("已停止录像！");
 this.btnVideoOn.Enabled = true; //不能点击
}
//打开本地视频
IntPtr phPlayer;
private void btnsearch_Click(object sender, EventArgs e)
{
 try
 {
  if (m_hServer != IntPtr.Zero)
  {
   string fName = "";
   OpenFileDialog openFileDialog = new OpenFileDialog();
   openFileDialog.InitialDirectory = Application.StartupPath;
   //注意这里写路径时要用c:\而不是c:
   openFileDialog.Filter = "文本文件|*.asf|所有文件|*.asf";
   openFileDialog.RestoreDirectory = true;
   openFileDialog.FilterIndex = 1;
   if (openFileDialog.ShowDialog() == DialogResult.OK)
   {
    this.panelVideo.Visible = false;
    this.pannelVideoTwo.Visible = true;
    this.btnsearch.Enabled = false;
    fName = openFileDialog.FileName;
    IntPtr hDisplayWnd = pannelVideoTwo.Handle;
    phPlayer = (IntPtr)0;
    DVSNETClient.DVSPLAYER_ReleaseInstance(phPlayer); //释放
    DVSNETClient.DVSPLAYER_Stop(phPlayer); //释放本地
    errornum aa = DVSNETClient.DVSPLAYER_CreateInstance(hDisplayWnd, ref phPlayer, 0);      
    aa = DVSNETClient.DVSPLAYER_OpenFile(phPlayer,ref fName, 1);
    DVSNETClient.DVSPLAYER_Start(phPlayer);
   }
   else
   {
    this.panelVideo.Visible = true;
    this.pannelVideoTwo.Visible = false;
   }
  }
  else
  {
   MessageBox.Show("请打开通道！");
  }
 }
 catch (Exception)
 {
  throw;
 }  
}
//停止视频播放
private void btnhf_Click(object sender, EventArgs e)
{
 this.panelVideo.Visible = true;
 this.pannelVideoTwo.Visible = false;
 IntPtr phPlayer = (IntPtr)0;
 DVSNETClient.DVSPLAYER_Stop(phPlayer);
 MessageBox.Show("已停止回放录像！");
 this.btnsearch.Enabled = true; ;  
}
//查找远程视频
private void btnSearchbyName_Click(object sender, EventArgs e)
{
 if (m_hServer == IntPtr.Zero)
 {
  MessageBox.Show("请先打开链接登录服务器！");
  return;
 }
 this.btnSearchbyName.Enabled = false;
 DVSNET_FILE_TIME pStartTime = new DVSNET_FILE_TIME();
 pStartTime.lYear = (uint)this.dateTimePicker1.Value.Year;
 pStartTime.lMonth = (uint)this.dateTimePicker1.Value.Month;
 pStartTime.lDay = (uint)this.dateTimePicker1.Value.Day;
 pStartTime.nHour = 0;
 pStartTime.nMinute = 0;
 DVSNET_FILE_TIME pEndTime = new DVSNET_FILE_TIME();
 pEndTime.lYear = (uint)this.dateTimePicker1.Value.Year;
 pEndTime.lMonth = (uint)this.dateTimePicker1.Value.Month;
 pEndTime.lDay = (uint)this.dateTimePicker1.Value.Day;
 pEndTime.nHour = 23;
 pEndTime.nMinute = 59;
 IntPtr phSearch = IntPtr.Zero;
 //if(){}
 errornum bak = DVSNETClient.DVSNET_ServerFindFile(m_hServer, 0, 0, (char)0xff, ref pStartTime, ref pEndTime, File_SearchCallback, (IntPtr)0, ref phSearch);
 if (bak != errornum.DVSNET_ERR_OK)
 {
  MessageBox.Show("查找远程视频失败！");
 }  
 this.btnSearchbyName.Enabled = true;
}
//鼠标双击事件
private void lvVideo_MouseDoubleClick(object sender, MouseEventArgs e)
{
 this.panelVideo.Visible = false;
 this.pannelVideoTwo.Visible = true;  
 string sa = "";
 IntPtr hWnd = pannelVideoTwo.Handle;
 if (lvVideo.SelectedItems.Count > 0)
 { //this.listView1.SelectedIndices
  sa = lvVideo.SelectedItems[0].Text.ToString();
 }

DVSNETClient.DVSPLAYER_Stop(phPlayer); //释放本地回放
 DVSNETClient.DVSNET_ClosePlayFile(phPlay); //释放远程
 phPlay = IntPtr.Zero;
 errornum bak = DVSNETClient.DVSNET_PlayFileByName(m_hServer, sa, 1, hWnd, ref phPlay);
 if (bak == errornum.DVSNET_ERR_OK)
 {
  UInt32 value = 0;
  DVSNETClient.DVSNET_ControlPlayFile(phPlay, 1, 0, ref value);
 }
 else
 {
  MessageBox.Show("回放远程文件 失败,错误码为" + bak.ToString());
 }
}
#endregion
//时间控件 1s
private void timerVideo_Tick(object sender, EventArgs e)
{
 int nStatus = 0;
 errornum errnum = DVSNETClient.DVSNET_GetSearchStatus(ref nStatus);
 if (errnum == errornum.DVSNET_ERR_OK)
 {
  if (nStatus == 1)
  {
   btnVideoSearck.Enabled = true;
   timerVideo.Enabled = false;
   MessageBox.Show("没有启动搜索");
  }
  if (nStatus == 2)
  {
   //MessageBox.Show("正在搜索！");
  }
  if (nStatus == 3)
  {
   timerVideo.Enabled = false;
   btnVideoSearck.Enabled = true;
   if (this.CmbIP.Items.Count == 0)
   {
    MessageBox.Show("没有找到设备！请接上设备");
   }
   else
   {
    MessageBox.Show("已找到设备，请选择IP地址");
   }
  }
 }
 else
 {
  MessageBox.Show("DVSNET_GetSearchStatus 失败,错误码为" + errnum.ToString());
 }
}

希望本文所述对大家的C#程序设计有所帮助。