C# 类型或命名空间名称';readFullyStream';找不到
我试着在Csharp中使用NAudio演示应用程序进行MP3流媒体播放,当我测试他们的演示程序时,它工作得非常好。我试着用c#形式创建它,但我得到了一个错误。上面说 “错误1无法指定类型或命名空间名称'readFullyStream' 找到(是否缺少using指令或程序集 参考?)c:\users\alioriyadho\documents\visual studio 2010\Projects\WindowsFormsApplication5\WindowsFormsApplication5\Form1.cs 89 47 WindowsFormsApplication5“ 我不知道为什么我会出错,我添加了所有的参考资料,并且这样想C# 类型或命名空间名称';readFullyStream';找不到,c#,stream,streaming,mp3,naudio,C#,Stream,Streaming,Mp3,Naudio,我试着在Csharp中使用NAudio演示应用程序进行MP3流媒体播放,当我测试他们的演示程序时,它工作得非常好。我试着用c#形式创建它,但我得到了一个错误。上面说 “错误1无法指定类型或命名空间名称'readFullyStream' 找到(是否缺少using指令或程序集 参考?)c:\users\alioriyadho\documents\visual studio 2010\Projects\WindowsFormsApplication5\WindowsFormsApplication5\
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using NAudio.Wave;
using System.Net;
using System.Threading;
using System.Net.Sockets;
using System.IO;
using System.Diagnostics;
using System.ComponentModel.Composition;
namespace WindowsFormsApplication5
{
public partial class MP3StreamingPanel : Form
{
enum StreamingPlaybackState
{
Stopped,
Playing,
Buffering,
Paused
}
public MP3StreamingPanel()
{
InitializeComponent();
this.volumeSlider1.VolumeChanged += new EventHandler(volumeSlider1_VolumeChanged);
this.Disposed += this.MP3StreamingPanel_Disposing;
}
void volumeSlider1_VolumeChanged(object sender, EventArgs e)
{
if (this.volumeProvider != null)
{
this.volumeProvider.Volume = this.volumeSlider1.Volume;
}
}
private BufferedWaveProvider bufferedWaveProvider;
private IWavePlayer waveOut;
private volatile StreamingPlaybackState playbackState;
private volatile bool fullyDownloaded;
private HttpWebRequest webRequest;
private VolumeWaveProvider16 volumeProvider;
delegate void ShowErrorDelegate(string message);
private void ShowError(string message)
{
if (this.InvokeRequired)
{
this.BeginInvoke(new ShowErrorDelegate(ShowError), message);
}
else
{
MessageBox.Show(message);
}
}
private void StreamMP3(object state)
{
this.fullyDownloaded = false;
string url = (string)state;
webRequest = (HttpWebRequest)WebRequest.Create(url);
HttpWebResponse resp = null;
try
{
resp = (HttpWebResponse)webRequest.GetResponse();
}
catch (WebException e)
{
if (e.Status != WebExceptionStatus.RequestCanceled)
{
ShowError(e.Message);
}
return;
}
byte[] buffer = new byte[16384 * 4]; // needs to be big enough to hold a decompressed frame
IMp3FrameDecompressor decompressor = null;
try
{
using (var responseStream = resp.GetResponseStream())
{
var readFullyStream = new readFullyStream(responseStream);
do
{
if (bufferedWaveProvider != null && bufferedWaveProvider.BufferLength - bufferedWaveProvider.BufferedBytes < bufferedWaveProvider.WaveFormat.AverageBytesPerSecond / 4)
{
Debug.WriteLine("Buffer getting full, taking a break");
Thread.Sleep(500);
}
else
{
Mp3Frame frame = null;
try
{
frame = Mp3Frame.LoadFromStream(readFullyStream);
}
catch (EndOfStreamException)
{
this.fullyDownloaded = true;
// reached the end of the MP3 file / stream
break;
}
catch (WebException)
{
// probably we have aborted download from the GUI thread
break;
}
if (decompressor == null)
{
// don't think these details matter too much - just help ACM select the right codec
// however, the buffered provider doesn't know what sample rate it is working at
// until we have a frame
WaveFormat waveFormat = new Mp3WaveFormat(frame.SampleRate, frame.ChannelMode == ChannelMode.Mono ? 1 : 2, frame.FrameLength, frame.BitRate);
decompressor = new AcmMp3FrameDecompressor(waveFormat);
this.bufferedWaveProvider = new BufferedWaveProvider(decompressor.OutputFormat);
this.bufferedWaveProvider.BufferDuration = TimeSpan.FromSeconds(20); // allow us to get well ahead of ourselves
//this.bufferedWaveProvider.BufferedDuration = 250;
}
int decompressed = decompressor.DecompressFrame(frame, buffer, 0);
//Debug.WriteLine(String.Format("Decompressed a frame {0}", decompressed));
bufferedWaveProvider.AddSamples(buffer, 0, decompressed);
}
} while (playbackState != StreamingPlaybackState.Stopped);
Debug.WriteLine("Exiting");
// was doing this in a finally block, but for some reason
// we are hanging on response stream .Dispose so never get there
decompressor.Dispose();
}
}
finally
{
if (decompressor != null)
{
decompressor.Dispose();
}
}
}
private void buttonPlay_Click(object sender, EventArgs e)
{
if (playbackState == StreamingPlaybackState.Stopped)
{
playbackState = StreamingPlaybackState.Buffering;
this.bufferedWaveProvider = null;
ThreadPool.QueueUserWorkItem(new WaitCallback(StreamMP3), textBoxStreamingUrl.Text);
timer1.Enabled = true;
}
else if (playbackState == StreamingPlaybackState.Paused)
{
playbackState = StreamingPlaybackState.Buffering;
}
}
private void StopPlayback()
{
if (playbackState != StreamingPlaybackState.Stopped)
{
if (!fullyDownloaded)
{
webRequest.Abort();
}
this.playbackState = StreamingPlaybackState.Stopped;
if (waveOut != null)
{
waveOut.Stop();
waveOut.Dispose();
waveOut = null;
}
timer1.Enabled = false;
// n.b. streaming thread may not yet have exited
Thread.Sleep(500);
ShowBufferState(0);
}
}
private void ShowBufferState(double totalSeconds)
{
labelBuffered.Text = String.Format("{0:0.0}s", totalSeconds);
progressBarBuffer.Value = (int)(totalSeconds * 1000);
}
private void timer1_Tick(object sender, EventArgs e)
{
if (playbackState != StreamingPlaybackState.Stopped)
{
if (this.waveOut == null && this.bufferedWaveProvider != null)
{
Debug.WriteLine("Creating WaveOut Device");
this.waveOut = CreateWaveOut();
waveOut.PlaybackStopped += waveOut_PlaybackStopped;
this.volumeProvider = new VolumeWaveProvider16(bufferedWaveProvider);
this.volumeProvider.Volume = this.volumeSlider1.Volume;
waveOut.Init(volumeProvider);
progressBarBuffer.Maximum = (int)bufferedWaveProvider.BufferDuration.TotalMilliseconds;
}
else if (bufferedWaveProvider != null)
{
var bufferedSeconds = bufferedWaveProvider.BufferedDuration.TotalSeconds;
ShowBufferState(bufferedSeconds);
// make it stutter less if we buffer up a decent amount before playing
if (bufferedSeconds < 0.5 && this.playbackState == StreamingPlaybackState.Playing && !this.fullyDownloaded)
{
this.playbackState = StreamingPlaybackState.Buffering;
waveOut.Pause();
Debug.WriteLine(String.Format("Paused to buffer, waveOut.PlaybackState={0}", waveOut.PlaybackState));
}
else if (bufferedSeconds > 4 && this.playbackState == StreamingPlaybackState.Buffering)
{
waveOut.Play();
Debug.WriteLine(String.Format("Started playing, waveOut.PlaybackState={0}", waveOut.PlaybackState));
this.playbackState = StreamingPlaybackState.Playing;
}
else if (this.fullyDownloaded && bufferedSeconds == 0)
{
Debug.WriteLine("Reached end of stream");
StopPlayback();
}
}
}
}
private IWavePlayer CreateWaveOut()
{
return new WaveOut();
//return new DirectSoundOut();
}
private void MP3StreamingPanel_Disposing(object sender, EventArgs e)
{
StopPlayback();
}
private void buttonPause_Click(object sender, EventArgs e)
{
if (playbackState == StreamingPlaybackState.Playing || playbackState == StreamingPlaybackState.Buffering)
{
waveOut.Pause();
Debug.WriteLine(String.Format("User requested Pause, waveOut.PlaybackState={0}", waveOut.PlaybackState));
playbackState = StreamingPlaybackState.Paused;
}
}
private void buttonStop_Click(object sender, EventArgs e)
{
StopPlayback();
}
private void waveOut_PlaybackStopped(object sender, StoppedEventArgs e)
{
Debug.WriteLine("Playback Stopped");
if (e.Exception != null)
{
MessageBox.Show(String.Format("Playback Error {0}", e.Exception.Message));
}
}
}
}
使用系统;
使用System.Collections.Generic;
使用系统组件模型;
使用系统数据;
使用系统图;
使用系统文本;
使用System.Windows.Forms;
使用NAudio.波;
Net系统;
使用系统线程;
使用System.Net.Sockets;
使用System.IO;
使用系统诊断;
使用System.ComponentModel.Composition;
命名空间Windows窗体应用程序5
{
公共部分类MP3StreamingPanel:表单
{
枚举StreamingPlaybackState
{
停止,
玩,
缓冲,
停顿
}
公共MP3StreamingPanel()
{
初始化组件();
this.volumeSlider1.VolumeChanged+=新事件处理程序(volumeSlider1\u VolumeChanged);
this.Disposed+=this.MP3StreamingPanel_Disposing;
}
void volumeSlider1\u VolumeChanged(对象发送方,事件参数e)
{
if(this.volumeProvider!=null)
{
this.volumeProvider.Volume=this.volumeSlider1.Volume;
}
}
专用BufferedWaveProvider BufferedWaveProvider;
私家侦探;
私人易变流playbackState playbackState;
私有易失性bool满下载;
私有HttpWebRequest-webRequest;
私人卷提供程序16卷提供程序;
委托(字符串消息);
私有无效错误(字符串消息)
{
if(this.invokererequired)
{
此.BeginInvoke(新的淋浴ROR代表(淋浴ROR),消息);
}
其他的
{
MessageBox.Show(message);
}
}
私有void StreamMP3(对象状态)
{
this.fullydownload=false;
字符串url=(字符串)状态;
webRequest=(HttpWebRequest)webRequest.Create(url);
HttpWebResponse resp=null;
尝试
{
resp=(HttpWebResponse)webRequest.GetResponse();
}
捕获(WebE例外)
{
if(e.Status!=WebExceptionStatus.RequestCancelled)
{
淋浴ROR(电子信息);
}
返回;
}
byte[]buffer=新字节[16384*4];//需要足够大才能容纳解压缩的帧
IMp3FrameDecompressor decompressor=null;
尝试
{
使用(var responseStream=resp.GetResponseStream())
{
var readFullyStream=新的readFullyStream(responseStream);
做
{
if(bufferedWaveProvider!=null&&bufferedWaveProvider.BufferLength-bufferedWaveProvider.BufferedBytes var readFullyStream = new readFullyStream(responseStream);
do