formavwizard.cs

该即时通讯系统系统能够实现像QQ一样的通讯功能

using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using LanMsg.AV;
namespace LanMsg
{
	/// <summary>
	/// AVWizardForm 的摘要说明。
	/// </summary>
	public class FormAVWizard : System.Windows.Forms.Form
	{
		private System.Windows.Forms.TabControl ts;
		private System.Windows.Forms.TabPage pvideo;
		private System.Windows.Forms.TabPage paudio;
		private System.Windows.Forms.Label label1;
		private System.Windows.Forms.Button btnadvance;
		private System.Windows.Forms.Label label2;
		private System.Windows.Forms.Label label3;
		private System.Windows.Forms.Label label4;
		private System.Windows.Forms.Label label5;
		private System.Windows.Forms.Panel pnlpreview;
		/// <summary>
		/// 必需的设计器变量。
		/// </summary>
		private System.ComponentModel.Container components = null;

		LanMsg.AV.VideoCapturer vc;
		LanMsg.AV.WaveIn wi;
		LanMsg.AV.WaveOut wo;
		WAVEFORMATEX wf;
		LanMsg.AV.Mixer mixer;
		LanMsg.AV.Mixer.MixerControlDetail indtl,outdtl;

		private System.Windows.Forms.PictureBox pictureBox1;
		private System.Windows.Forms.Button btnsave;
		private System.Windows.Forms.Button btncancel;
		private System.Windows.Forms.ComboBox cmbvideoDevice;
		private System.Windows.Forms.ComboBox cmbintput;
		private System.Windows.Forms.ComboBox cmboutput;
		private System.Windows.Forms.Label label6;
		private System.Windows.Forms.TrackBar trackBarInVolume;
		private System.Windows.Forms.TrackBar trackBarOutVolume;
	
		public FormAVWizard()
		{
			//
			// Windows 窗体设计器支持所必需的
			//
			InitializeComponent();		
			VideoCapturer.VideoCaptureDeviceCollection vcs=VideoCapturer.GetDevices();
			foreach(VideoCaptureDevice vd in vcs)
			{

 				this.cmbvideoDevice.Items.Add( vd.Name );
			}
			if(vcs.Count>0)
				this.cmbvideoDevice.SelectedIndex=0;
			else
				this.cmbvideoDevice.Text="没有找到视频输入设备";
			AudioDevice.AudioDeviceCollection ads=AudioDevice.InputDevices();
			foreach(AudioDevice ad in ads)
			{
				this.cmbintput.Items.Add((ad.Name));
				this.cmboutput.Items.Add((ad.Name));
			}
			if(ads.Count>0)
			{
				this.cmbintput.SelectedIndex=0;
				this.cmboutput.SelectedIndex=0;
			}
			else
			{
				this.cmbintput.Items.Add(("找不到音频输入设备"));
				this.cmboutput.Items.Add(("找不到音频输出设备"));
			}

			mixer=new Mixer(this);
			mixer.MixerControlChange+=new EventHandler(mixer_MixerControlChange);
			
			this.outdtl=new LanMsg.AV.Mixer.MixerControlDetail(mixer,LanMsg.AV.Mixer.MIXERLINE_COMPONENTTYPE_DST_SPEAKERS);
			this.trackBarOutVolume.Maximum=this.outdtl.Max;
			this.trackBarOutVolume.Minimum=this.outdtl.Min;
            this.trackBarOutVolume.Value=this.outdtl.Volume;
			 
			this.indtl=new LanMsg.AV.Mixer.MixerControlDetail(mixer,LanMsg.AV.Mixer.MIXERLINE_COMPONENTTYPE_SRC_MICROPHONE);
			this.trackBarInVolume.Maximum=this.indtl.Max;
			this.trackBarInVolume.Minimum=this.indtl.Min;
			this.trackBarInVolume.Value=this.indtl.Volume;

			this.vc=new VideoCapturer(this.pnlpreview,this.cmbvideoDevice.SelectedIndex);
			this.vc.ConnectDevice();
			this.vc.SetPreviewRate(66);
			LanMsg.AV.BITMAPINFO h=this.vc.BITMAPINFO;
			h.bmiHeader.biBitCount=24;
			h.bmiHeader.biWidth=160;
			h.bmiHeader.biHeight=120;
			this.vc.BITMAPINFO=h;
			this.vc.Preview=true;	
			
			wf=new WAVEFORMATEX();
			wf.cbSize=0;
			wf.nChannels=1;
			wf.nSamplesPerSec=8000;
			wf.wBitsPerSample=16;
			wf.nBlockAlign=2;
			wf.nAvgBytesPerSec=16000;
			wf.wFormatTag=1;//pcm


			wo=new WaveOut(this.cmboutput.SelectedIndex,wf,1600,20);
			wo.WaveOutError+=new WaveErrorEventHandler(wo_WaveInError);
			this.wo.Start();

			wi=new WaveIn(this.cmbintput.SelectedIndex,wf,1600,20);
			wi.WaveInError+=new WaveErrorEventHandler(wo_WaveInError);
			wi.WaveCaptured+=new WaveBufferEventHandler(wi_WaveCaptured);
			this.wi.Start();
			this.Activate();
		}

		private void InitialAll(object o)
		{

		}

		private void wo_WaveInError(object sender, AVException e)
		{
			System.Diagnostics.Trace.WriteLine(e.Message);
		}
		private void wi_WaveCaptured(object sender, WAVEHDR hdr)
		{
			if(this.ts.SelectedTab==this.paudio)
			{
				byte[] data=new byte[hdr.dwBytesRecorded];
				System.Runtime.InteropServices.Marshal.Copy(hdr.lpData,data,0,data.Length);
				LanMsg.AV.UT.LowPassWave(this.wf,data,0,5000);
				this.wo.Write(data);
				Bitmap bm=new Bitmap(this.pictureBox1.Width,this.pictureBox1.Height);
				Graphics g=Graphics.FromImage(bm);
				Pen pen=new Pen(this.ForeColor);
				int xi=(int)(this.pictureBox1.Width*16/data.Length),ys=(int)(this.pictureBox1.Height/2);
				int h=this.pictureBox1.Height;
				int x=-xi,y=ys,x2,y2;
				if(xi<1)xi=1;
				for(int i=0;i<data.Length;i+=16)
				{
					x2=x+xi;
					y2=ys+(int)(System.BitConverter.ToInt16(data,i)/h);
					g.DrawLine(pen,x,y,x2,y2);
					x=x2;
					y=y2;
				}
				g.Dispose();
				this.pictureBox1.Image=bm;
			}
		}
		private void SyncVolumn()
		{
			this.trackBarInVolume.Value=this.indtl.Volume;
			this.trackBarOutVolume.Value=this.outdtl.Volume;	
		}
		private void mixer_MixerControlChange(object sender, EventArgs e)
		{
			this.SyncVolumn();
		}

		/// <summary>
		/// 清理所有正在使用的资源。
		/// </summary>
		protected override void Dispose( bool disposing )
		{
			if( disposing )
			{
				wi.Stop();
				wo.Stop();
				mixer.Close();
				if(vc.Connected){vc.Close(); vc.Disconnect();}
				if(components != null)
				{
					components.Dispose();
				}
			}
			base.Dispose( disposing );
		}

		#region Windows 窗体设计器生成的代码
		/// <summary>
		/// 设计器支持所需的方法 - 不要使用代码编辑器修改
		/// 此方法的内容。
		/// </summary>
		private void InitializeComponent()
		{
			this.ts = new System.Windows.Forms.TabControl();
			this.pvideo = new System.Windows.Forms.TabPage();
			this.cmbvideoDevice = new System.Windows.Forms.ComboBox();
			this.btnadvance = new System.Windows.Forms.Button();
			this.label1 = new System.Windows.Forms.Label();
			this.pnlpreview = new System.Windows.Forms.Panel();
			this.paudio = new System.Windows.Forms.TabPage();
			this.cmboutput = new System.Windows.Forms.ComboBox();
			this.cmbintput = new System.Windows.Forms.ComboBox();
			this.pictureBox1 = new System.Windows.Forms.PictureBox();
			this.label4 = new System.Windows.Forms.Label();
			this.label2 = new System.Windows.Forms.Label();
			this.label3 = new System.Windows.Forms.Label();
			this.label6 = new System.Windows.Forms.Label();
			this.trackBarInVolume = new System.Windows.Forms.TrackBar();
			this.trackBarOutVolume = new System.Windows.Forms.TrackBar();
			this.label5 = new System.Windows.Forms.Label();
			this.btnsave = new System.Windows.Forms.Button();
			this.btncancel = new System.Windows.Forms.Button();
			this.ts.SuspendLayout();
			this.pvideo.SuspendLayout();
			this.paudio.SuspendLayout();
			((System.ComponentModel.ISupportInitialize)(this.trackBarInVolume)).BeginInit();
			((System.ComponentModel.ISupportInitialize)(this.trackBarOutVolume)).BeginInit();
			this.SuspendLayout();
			// 
			// ts
			// 
			this.ts.Anchor = ((System.Windows.Forms.AnchorStyles)((((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Bottom) 
				| System.Windows.Forms.AnchorStyles.Left) 
				| System.Windows.Forms.AnchorStyles.Right)));
			this.ts.Controls.Add(this.pvideo);
			this.ts.Controls.Add(this.paudio);
			this.ts.Location = new System.Drawing.Point(0, 0);
			this.ts.Name = "ts";
			this.ts.SelectedIndex = 0;
			this.ts.Size = new System.Drawing.Size(360, 221);
			this.ts.TabIndex = 0;
			// 
			// pvideo
			// 
			this.pvideo.Controls.Add(this.cmbvideoDevice);