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这篇文章主要介绍了c#基于udp如何实现p2p语音聊天工具,具有一定借鉴价值,感兴趣的朋友可以参考下,希望大家阅读完这篇文章之后大有收获,下面让小编带着大家一起了解一下。
创新互联始终坚持【策划先行,效果至上】的经营理念,通过多达10余年累计超上千家客户的网站建设总结了一套系统有效的网络营销推广解决方案,现已广泛运用于各行各业的客户,其中包括:混凝土搅拌机等企业,备受客户好评。之前发过一篇文章http://www.php.cn/ 已经实现过了UDP的分包发送数据的功能,而这篇文章主要是一个应用,使用udp传送语音和文本等信息。在这个系统中没有服务端和客户端,相互通讯都是直接相互联系的。能够很好的实现效果。
要想发送语音信息,首先得获取语音,这里有几种方法,一种是使用DirectX的DirectXsound来录音,我为了简便使用一个开源的插件NAudio来实现语音录取。 在项目中引用NAudio.dll
//------------------录音相关----------------------------- private IWaveIn waveIn; private WaveFileWriter writer; private void LoadWasapiDevicesCombo() { var deviceEnum = new MMDeviceEnumerator(); var devices = deviceEnum.EnumerateAudioEndPoints(DataFlow.Capture, DeviceState.Active).ToList(); comboBox1.DataSource = devices; comboBox1.DisplayMember = "FriendlyName"; } private void CreateWaveInDevice() { waveIn = new WaveIn(); waveIn.WaveFormat = new WaveFormat(8000, 1); waveIn.DataAvailable += OnDataAvailable; waveIn.RecordingStopped += OnRecordingStopped; } void OnDataAvailable(object sender, WaveInEventArgs e) { if (this.InvokeRequired) { this.BeginInvoke(new EventHandler(OnDataAvailable), sender, e); } else { writer.Write(e.Buffer, 0, e.BytesRecorded); int secondsRecorded = (int)(writer.Length / writer.WaveFormat.AverageBytesPerSecond); if (secondsRecorded >= 10)//较大10s { StopRecord(); } else { l_sound.Text = secondsRecorded + " s"; } } } void OnRecordingStopped(object sender, StoppedEventArgs e) { if (InvokeRequired) { BeginInvoke(new EventHandler (OnRecordingStopped), sender, e); } else { FinalizeWaveFile(); } } void StopRecord() { AllChangeBtn(btn_luyin, true); AllChangeBtn(btn_stop, false); AllChangeBtn(btn_sendsound, true); AllChangeBtn(btn_play, true); //btn_luyin.Enabled = true; //btn_stop.Enabled = false; //btn_sendsound.Enabled = true; //btn_play.Enabled = true; if (waveIn != null) waveIn.StopRecording(); //Cleanup(); } private void Cleanup() { if (waveIn != null) { waveIn.Dispose(); waveIn = null; } FinalizeWaveFile(); } private void FinalizeWaveFile() { if (writer != null) { writer.Dispose(); writer = null; } } //开始录音 private void btn_luyin_Click(object sender, EventArgs e) { btn_stop.Enabled = true; btn_luyin.Enabled = false; if (waveIn == null) { CreateWaveInDevice(); } if (File.Exists(soundfile)) { File.Delete(soundfile); } writer = new WaveFileWriter(soundfile, waveIn.WaveFormat); waveIn.StartRecording(); }
上面的代码实现了录音,并且写入文件p2psound_A.wav
获取到语音后我们要把语音发送出去
当我们录好音后点击发送,这部分相关代码是
MsgTranslator tran = null; public Form1() { InitializeComponent(); LoadWasapiDevicesCombo();//显示音频设备 Config cfg = SeiClient.GetDefaultConfig(); cfg.Port = 7777; UDPThread udp = new UDPThread(cfg); tran = new MsgTranslator(udp, cfg); tran.MessageReceived += tran_MessageReceived; tran.Debuged += new EventHandler(tran_Debuged); } private void btn_sendsound_Click(object sender, EventArgs e) { if (t_ip.Text == "") { MessageBox.Show("请输入ip"); return; } if (t_port.Text == "") { MessageBox.Show("请输入端口号"); return; } string ip = t_ip.Text; int port = int.Parse(t_port.Text); string nick = t_nick.Text; string msg = "语音消息"; IPEndPoint remote = new IPEndPoint(IPAddress.Parse(ip), port); Msg m = new Msg(remote, "zz", nick, Commands.SendMsg, msg, "Come From A"); m.IsRequireReceive = true; m.ExtendMessageBytes = FileContent(soundfile); m.PackageNo = Msg.GetRandomNumber(); m.Type = Consts.MESSAGE_BINARY; tran.Send(m); } private byte[] FileContent(string fileName) { FileStream fs = new FileStream(fileName, FileMode.Open, FileAccess.Read); try { byte[] buffur = new byte[fs.Length]; fs.Read(buffur, 0, (int)fs.Length); return buffur; } catch (Exception ex) { return null; } finally { if (fs != null) { //关闭资源 fs.Close(); } } }
如此一来我们就把产生的语音文件发送出去了
其实语音的接收和文本消息的接收没有什么不同,只不过语音发送的时候是以二进制发送的,因此我们在收到语音后 就应该写入到一个文件里面去,接收完成后,播放这段语音就行了。
下面这段代码主要是把收到的数据保存到文件中去,这个函数式我的NetFrame里收到消息时所触发的事件,在文章前面提过的那篇文章里
void tran_MessageReceived(object sender, MessageEventArgs e) { Msg msg = e.msg; if (msg.Type == Consts.MESSAGE_BINARY) { string m = msg.Type + "->" + msg.UserName + "发来二进制消息!"; AddServerMessage(m); if (File.Exists(recive_soundfile)) { File.Delete(recive_soundfile); } FileStream fs = new FileStream(recive_soundfile, FileMode.Create, FileAccess.Write); fs.Write(msg.ExtendMessageBytes, 0, msg.ExtendMessageBytes.Length); fs.Close(); //play_sound(recive_soundfile); ChangeBtn(true); } else { string m = msg.Type + "->" + msg.UserName + "说:" + msg.NormalMsg; AddServerMessage(m); } }
收到语音消息后,我们要进行播放,播放时仍然用刚才那个插件播放
//--------播放部分---------- private IWavePlayer wavePlayer; private WaveStream reader; public void play_sound(string filename) { if (wavePlayer != null) { wavePlayer.Dispose(); wavePlayer = null; } if (reader != null) { reader.Dispose(); } reader = new MediaFoundationReader(filename, new MediaFoundationReader.MediaFoundationReaderSettings() { SingleReaderObject = true }); if (wavePlayer == null) { wavePlayer = new WaveOut(); wavePlayer.PlaybackStopped += WavePlayerOnPlaybackStopped; wavePlayer.Init(reader); } wavePlayer.Play(); } private void WavePlayerOnPlaybackStopped(object sender, StoppedEventArgs stoppedEventArgs) { if (stoppedEventArgs.Exception != null) { MessageBox.Show(stoppedEventArgs.Exception.Message); } if (wavePlayer != null) { wavePlayer.Stop(); } btn_luyin.Enabled = true; }private void btn_play_Click(object sender, EventArgs e) { btn_luyin.Enabled = false; play_sound(soundfile); }
在上面演示了接收和发送一段语音消息的界面
主要用到的技术就是UDP和NAudio的录音和播放功能
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