播放声音在C＃中 - 要使用的所有方法？ [英] Playing Sound in C# - which of all ways to use?
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问题描述
我试图写一个小C＃.NET - 应用程序，播放声音随机文件夹时，特定的按钮被点击
I'm trying to write a little C# .net - application that plays sounds randomly from folders when specific buttons are clicked.
所以我花了一些时间找到合适的方式来实现这一点。在我的头刚刚播放声音似乎并没有像复杂的，但也有很多方法可以做到这一点。
So I spend some time finding the right way to realise that. In my head "just playing a sound" didn't seem to be as complicated, but there are a lot of ways to do that.
请纠正我的每一件事情，我现在要说：
Please correct me in every thing I'm going to say now:
- PlaySound 是pretty的老样子，没有控制如音量，多种声音或循环
- mciSendString ，发送文本注释一个MCI，玩不同的格式，支持音量控制的，即使多个声音同时是可能的，而不是非常舒适发送串而不是使用类命令，可能需要一个简洁（wellformed）包装类（人：D）
- 声音播放类，支持异步，没有真正进一步的嘛，没成交量没有循环
- 的MediaPlayer 类，支持超过音频还要多，.NET 4.0 ，量，但需要一些特殊待遇，同时有多个声音工作
- <一个href="http://blogs.microsoft.co.il/blogs/tamir/archive/2008/12/25/capturing-and-streaming-sound-by-using-directsound-with-c.aspx"相对=nofollow> DirectSound的，似乎支持一切都可以用声音想象，code看起来太复杂，简单地播放声音
- PlaySound is the pretty old way, no controls like volume, multiple sounds or looping
- mciSendString, sending text comments to an MCI, playing different formats, supporting Volumecontrol, even multiple sounds at the same time are possible, not very confortable sending string commands instead of using class, might need a wellformed wrapper class (anybody? :D )
- SoundPlayer class, supports async, no real further thing, no volume no looping
- MediaPlayer class, supports even more than audio, .net 4.0, volume, but needs some "special treatment" to work with multiple sounds at the same time
- DirectSound, seems to support everything you can imagine with sound, code looks way too complicated for "simply play a sound"
好吧，这是办法，也许我缺少一个，但一般......我不是一个尚未信服。
Okay, that are the ways, maybe I'm missing one, but in general... I'm not convinced by one yet.
我要开始，停止，暂停自定义的.wav MP3播放的声音不只是后对方，但有时甚至在同一时间，期间他们正在运行，也许一些静音功能停止所有的声音改变有音量。听起来容易，但果真如此吗？
I want to start, stop, pause custom .wav .mp3 sounds not just after each other but sometimes even at the same time, change there volume during they are running and maybe some mute function stopping all sounds. Sounds easy, but is it?
感谢提前任何提示，
哈里
推荐答案
我扩展一个类，我发现在这里：的播放使用MCI HTTP MP3歌曲：//www.$c$cproject.com 并使其易于使用的与留可控多种声音。
I extended a class i found here: Playing MP3s using MCI http://www.codeproject.com and made it easy usable with multiple sounds which stay controlable.
其pretty的不言自明，但也许有人somewhen发现这个线程保险箱使用这块code或者是有一些重要的事情，以改善它一些时间：
Its pretty much self-explanatory, but maybe somebody somewhen finding this thread safes some time using this piece of code or maybe there are some major things to improve it:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Runtime.InteropServices;
using System.IO;
namespace someNameHere
{
public class MP3Player
{
private string Pcommand, FName,alias;
private bool Opened, Playing, Paused, Loop,
MutedAll, MutedLeft, MutedRight;
private int rVolume, lVolume, aVolume,
tVolume, bVolume, VolBalance;
private ulong Lng;
private long Err;
private static int counter = 0;
public static List<MP3Player> currentlyActive = new List<MP3Player>();
public static List<MP3Player> lastFiveActive = new List<MP3Player>();
[DllImport("winmm.dll")]
private static extern long mciSendString(string strCommand,
StringBuilder strReturn, int iReturnLength,
IntPtr hwndCallback);
public MP3Player()
{
Opened = false;
Pcommand = "";
FName = "";
Playing = false;
Paused = false;
Loop = false;
MutedAll = MutedLeft = MutedRight = false;
rVolume = lVolume = aVolume =
tVolume = bVolume = 1000;
Lng = 0;
VolBalance = 0;
Err = 0;
counter++;
alias = "alias" + counter.ToString();
currentlyActive = cleanUpActive();
currentlyActive.Add(this);
}
~MP3Player()
{
currentlyActive.Remove(this);
}
private List<MP3Player> cleanUpActive()
{
List<MP3Player> cachedList = new List<MP3Player>(currentlyActive);
cachedList = (from c in cachedList where c.AudioLength == c.CurrentPosition select c).ToList();
foreach (MP3Player eachSound in cachedList)
{
eachSound.Stop();
eachSound.Close();
}
return (from c in currentlyActive where c.AudioLength != c.CurrentPosition select c).ToList();
}
public static void playRandomFromFolder(string relpath, bool checkIfInLast)
{
try
{
string currentdir = Environment.CurrentDirectory;
string[] Files = Directory.GetFiles(currentdir + relpath);
Random randNum = new Random();
List<string> list_paths = (from c in lastFiveActive select c.FileName).ToList();
string randomFile = "";
int i = 0;
while (true)
{
int zufall = randNum.Next(0, Files.Length);
if (!list_paths.Contains(Files[zufall]) || i > 10)
{
randomFile = Files[zufall];
break;
}
}
MP3Player playIt = new MP3Player();
playIt.Open(randomFile);
playIt.Play();
}
catch (Exception err)
{
// MessageBox.Show(err.Message);
}
}
#region AllActiveFunctions
public static void stopAllActive()
{
List<MP3Player> cachedList = new List<MP3Player>(currentlyActive);
foreach (MP3Player eachSound in cachedList)
{
eachSound.Stop();
}
}
public static void pauseAllActive()
{
foreach (MP3Player eachSound in currentlyActive)
{
eachSound.Pause();
}
}
public static void playAllActive()
{
List<MP3Player> cachedList = new List<MP3Player>(currentlyActive);
foreach (MP3Player eachSound in cachedList)
{
eachSound.Play();
}
}
public static void setVolumeAllActive(int i)
{
List<MP3Player> cachedList = new List<MP3Player>(currentlyActive);
foreach (MP3Player eachSound in cachedList)
{
eachSound.VolumeAll = i;
}
}
public static void setVolumeLeft(int i)
{
List<MP3Player> cachedList = new List<MP3Player>(currentlyActive);
foreach (MP3Player eachSound in cachedList)
{
eachSound.VolumeLeft = i;
}
}
public static void setVolumeRight(int i)
{
List<MP3Player> cachedList = new List<MP3Player>(currentlyActive);
foreach (MP3Player eachSound in cachedList)
{
eachSound.VolumeRight = i;
}
}
public static void setVolumeTreble(int i)
{
List<MP3Player> cachedList = new List<MP3Player>(currentlyActive);
foreach (MP3Player eachSound in cachedList)
{
eachSound.VolumeTreble = i;
}
}
public static void setVolumeBass(int i)
{
List<MP3Player> cachedList = new List<MP3Player>(currentlyActive);
foreach (MP3Player eachSound in cachedList)
{
eachSound.VolumeBass = i;
}
}
public static void setBalance(int i)
{
List<MP3Player> cachedList = new List<MP3Player>(currentlyActive);
foreach (MP3Player eachSound in cachedList)
{
eachSound.Balance = i;
}
}
public static void stopLast()
{
List<MP3Player> cachedList = new List<MP3Player>(currentlyActive);
cachedList.Last().Stop();
}
#endregion
#region Volume
public bool MuteAll
{
get
{
return MutedAll;
}
set
{
MutedAll = value;
if (MutedAll)
{
Pcommand = "setaudio " + alias + " off";
if ((Err = mciSendString(Pcommand, null, 0, IntPtr.Zero)) != 0)
OnError(new ErrorEventArgs(Err));
}
else
{
Pcommand = "setaudio " + alias + " on";
if ((Err = mciSendString(Pcommand, null, 0, IntPtr.Zero)) != 0)
OnError(new ErrorEventArgs(Err));
}
}
}
public bool MuteLeft
{
get
{
return MutedLeft;
}
set
{
MutedLeft = value;
if (MutedLeft)
{
Pcommand = "setaudio " + alias + " left off";
if ((Err = mciSendString(Pcommand, null, 0, IntPtr.Zero)) != 0)
OnError(new ErrorEventArgs(Err));
}
else
{
Pcommand = "setaudio " + alias + " left on";
if ((Err = mciSendString(Pcommand, null, 0, IntPtr.Zero)) != 0)
OnError(new ErrorEventArgs(Err));
}
}
}
public bool MuteRight
{
get
{
return MutedRight;
}
set
{
MutedRight = value;
if (MutedRight)
{
Pcommand = "setaudio " + alias + " right off";
if ((Err = mciSendString(Pcommand, null, 0, IntPtr.Zero)) != 0)
OnError(new ErrorEventArgs(Err));
}
else
{
Pcommand = "setaudio " + alias + " right on";
if ((Err = mciSendString(Pcommand, null, 0, IntPtr.Zero)) != 0)
OnError(new ErrorEventArgs(Err));
}
}
}
public int VolumeAll
{
get
{
return aVolume;
}
set
{
if (Opened && (value >= 0 && value <= 1000))
{
aVolume = value;
Pcommand = String.Format("setaudio " + alias + "" +
" volume to {0}", aVolume);
if ((Err = mciSendString(Pcommand, null, 0,
IntPtr.Zero)) != 0)
OnError(new ErrorEventArgs(Err));
}
}
}
public int VolumeLeft
{
get
{
return lVolume;
}
set
{
if (Opened && (value >= 0 && value <= 1000))
{
lVolume = value;
Pcommand = String.Format("setaudio " + alias + "" +
" left volume to {0}", lVolume);
if ((Err = mciSendString(Pcommand, null, 0,
IntPtr.Zero)) != 0)
OnError(new ErrorEventArgs(Err));
}
}
}
public int VolumeRight
{
get
{
return rVolume;
}
set
{
if (Opened && (value >= 0 && value <= 1000))
{
rVolume = value;
Pcommand = String.Format("setaudio" +
" " + alias + " right volume to {0}", rVolume);
if ((Err = mciSendString(Pcommand, null, 0, IntPtr.Zero)) != 0)
OnError(new ErrorEventArgs(Err));
}
}
}
public int VolumeTreble
{
get
{
return tVolume;
}
set
{
if (Opened && (value >= 0 && value <= 1000))
{
tVolume = value;
Pcommand = String.Format("setaudio " + alias + "" +
" treble to {0}", tVolume);
if ((Err = mciSendString(Pcommand, null, 0, IntPtr.Zero)) != 0)
OnError(new ErrorEventArgs(Err));
}
}
}
public int VolumeBass
{
get
{
return bVolume;
}
set
{
if (Opened && (value >= 0 && value <= 1000))
{
bVolume = value;
Pcommand = String.Format("setaudio " + alias + " bass to {0}",
bVolume);
if ((Err = mciSendString(Pcommand, null, 0, IntPtr.Zero)) != 0)
OnError(new ErrorEventArgs(Err));
}
}
}
public int Balance
{
get
{
return VolBalance;
}
set
{
if (Opened && (value >= -1000 && value <= 1000))
{
VolBalance = value;
if (value < 0)
{
Pcommand = "setaudio " + alias + " left volume to 1000";
if ((Err = mciSendString(Pcommand, null, 0, IntPtr.Zero)) != 0)
OnError(new ErrorEventArgs(Err));
Pcommand = String.Format("setaudio " + alias + " right" +
" volume to {0}", 1000 + value);
if ((Err = mciSendString(Pcommand, null, 0, IntPtr.Zero)) != 0)
OnError(new ErrorEventArgs(Err));
}
else
{
Pcommand = "setaudio " + alias + " right volume to 1000";
if ((Err = mciSendString(Pcommand, null, 0, IntPtr.Zero)) != 0)
OnError(new ErrorEventArgs(Err));
Pcommand = String.Format("setaudio " + alias + "" +
" left volume to {0}", 1000 - value);
if ((Err = mciSendString(Pcommand, null, 0, IntPtr.Zero)) != 0)
OnError(new ErrorEventArgs(Err));
}
}
}
}
#endregion
#region Main Functions
public string FileName
{
get
{
return FName;
}
}
public bool Looping
{
get
{
return Loop;
}
set
{
Loop = value;
}
}
public void Seek(ulong Millisecs)
{
if (Opened && Millisecs <= Lng)
{
if (Playing)
{
if (Paused)
{
Pcommand = String.Format("seek " + alias + " to {0}", Millisecs);
if ((Err = mciSendString(Pcommand, null, 0, IntPtr.Zero)) != 0)
OnError(new ErrorEventArgs(Err));
}
else
{
Pcommand = String.Format("seek " + alias + " to {0}", Millisecs);
if ((Err = mciSendString(Pcommand, null, 0, IntPtr.Zero)) != 0)
OnError(new ErrorEventArgs(Err));
Pcommand = "play " + alias + "";
if ((Err = mciSendString(Pcommand, null, 0, IntPtr.Zero)) != 0)
OnError(new ErrorEventArgs(Err));
}
}
}
}
private void CalculateLength()
{
StringBuilder str = new StringBuilder(128);
mciSendString("status " + alias + " length", str, 128, IntPtr.Zero);
Lng = Convert.ToUInt64(str.ToString());
}
public ulong AudioLength
{
get
{
if (Opened) return Lng;
else return 0;
}
}
public void Close()
{
if (Opened)
{
Pcommand = "close " + alias + "";
if ((Err = mciSendString(Pcommand, null, 0, IntPtr.Zero)) != 0)
OnError(new ErrorEventArgs(Err));
Opened = false;
Playing = false;
Paused = false;
OnCloseFile(new CloseFileEventArgs());
}
}
public void Open(string sFileName)
{
if (!Opened)
{
Pcommand = "open \"" + sFileName +
"\" type mpegvideo alias " + alias + "";
if ((Err = mciSendString(Pcommand, null, 0, IntPtr.Zero)) != 0)
OnError(new ErrorEventArgs(Err));
FName = sFileName;
Opened = true;
Playing = false;
Paused = false;
Pcommand = "set " + alias + " time format milliseconds";
if ((Err = mciSendString(Pcommand, null, 0, IntPtr.Zero)) != 0)
OnError(new ErrorEventArgs(Err));
Pcommand = "set " + alias + " seek exactly on";
if ((Err = mciSendString(Pcommand, null, 0, IntPtr.Zero)) != 0)
OnError(new ErrorEventArgs(Err));
CalculateLength();
OnOpenFile(new OpenFileEventArgs(sFileName));
}
else
{
this.Close();
this.Open(sFileName);
}
}
private void stackLastFive(MP3Player latest)
{
if (lastFiveActive.Count() > 5)
{
lastFiveActive.Reverse();
lastFiveActive = lastFiveActive.Take(4).ToList();
}
lastFiveActive.Add(latest);
}
public void Play()
{
if (Opened)
{
if (!Playing)
{
Playing = true;
Pcommand = "play " + alias + "";
if (Loop) Pcommand += " REPEAT";
if ((Err = mciSendString(Pcommand, null, 0, IntPtr.Zero)) != 0)
OnError(new ErrorEventArgs(Err));
OnPlayFile(new PlayFileEventArgs());
}
else
{
if (!Paused)
{
Pcommand = "seek " + alias + " to start";
if ((Err = mciSendString(Pcommand, null, 0, IntPtr.Zero)) != 0)
OnError(new ErrorEventArgs(Err));
Pcommand = "play " + alias + "";
if ((Err = mciSendString(Pcommand, null, 0, IntPtr.Zero)) != 0)
OnError(new ErrorEventArgs(Err));
OnPlayFile(new PlayFileEventArgs());
}
else
{
Paused = false;
Pcommand = "play " + alias + "";
if ((Err = mciSendString(Pcommand, null, 0, IntPtr.Zero)) != 0)
OnError(new ErrorEventArgs(Err));
OnPlayFile(new PlayFileEventArgs());
}
}
stackLastFive(this);
}
}
public void Pause()
{
if (Opened)
{
if (!Paused)
{
Paused = true;
Pcommand = "pause " + alias + "";
if ((Err = mciSendString(Pcommand, null, 0, IntPtr.Zero)) != 0)
OnError(new ErrorEventArgs(Err));
OnPauseFile(new PauseFileEventArgs());
}
else
{
Paused = false;
Pcommand = "play " + alias + "";
if ((Err = mciSendString(Pcommand, null, 0, IntPtr.Zero)) != 0)
OnError(new ErrorEventArgs(Err));
OnPlayFile(new PlayFileEventArgs());
}
}
}
public void Stop()
{
if (Opened && Playing)
{
Playing = false;
Paused = false;
Pcommand = "seek " + alias + " to start";
if ((Err = mciSendString(Pcommand, null, 0, IntPtr.Zero)) != 0)
OnError(new ErrorEventArgs(Err));
Pcommand = "stop " + alias + "";
if ((Err = mciSendString(Pcommand, null, 0, IntPtr.Zero)) != 0)
OnError(new ErrorEventArgs(Err));
currentlyActive.Remove(this);
OnStopFile(new StopFileEventArgs());
}
}
public ulong CurrentPosition
{
get
{
if (Opened && Playing)
{
StringBuilder s = new StringBuilder(128);
Pcommand = "status " + alias + " position";
if ((Err = mciSendString(Pcommand, s, 128, IntPtr.Zero)) != 0)
OnError(new ErrorEventArgs(Err));
return Convert.ToUInt64(s.ToString());
}
else return 0;
}
}
#endregion
#region Event Handling
public delegate void OpenFileEventHandler(Object sender,
OpenFileEventArgs oea);
public delegate void PlayFileEventHandler(Object sender,
PlayFileEventArgs pea);
public delegate void PauseFileEventHandler(Object sender,
PauseFileEventArgs paea);
public delegate void StopFileEventHandler(Object sender,
StopFileEventArgs sea);
public delegate void CloseFileEventHandler(Object sender,
CloseFileEventArgs cea);
public delegate void ErrorEventHandler(Object sender,
ErrorEventArgs eea);
public event OpenFileEventHandler OpenFile;
public event PlayFileEventHandler PlayFile;
public event PauseFileEventHandler PauseFile;
public event StopFileEventHandler StopFile;
public event CloseFileEventHandler CloseFile;
public event ErrorEventHandler Error;
protected virtual void OnOpenFile(OpenFileEventArgs oea)
{
if (OpenFile != null) OpenFile(this, oea);
}
protected virtual void OnPlayFile(PlayFileEventArgs pea)
{
if (PlayFile != null) PlayFile(this, pea);
}
protected virtual void OnPauseFile(PauseFileEventArgs paea)
{
if (PauseFile != null) PauseFile(this, paea);
}
protected virtual void OnStopFile(StopFileEventArgs sea)
{
if (StopFile != null) StopFile(this, sea);
}
protected virtual void OnCloseFile(CloseFileEventArgs cea)
{
if (CloseFile != null) CloseFile(this, cea);
if (currentlyActive.Contains(this))
{
currentlyActive.Remove(this);
}
}
protected virtual void OnError(ErrorEventArgs eea)
{
if (Error != null) Error(this, eea);
}
}
public class OpenFileEventArgs : EventArgs
{
public OpenFileEventArgs(string filename)
{
this.FileName = filename;
}
public readonly string FileName;
}
public class PlayFileEventArgs : EventArgs
{
public PlayFileEventArgs()
{
}
}
public class PauseFileEventArgs : EventArgs
{
public PauseFileEventArgs()
{
}
}
public class StopFileEventArgs : EventArgs
{
public StopFileEventArgs()
{
}
}
public class CloseFileEventArgs : EventArgs
{
public CloseFileEventArgs()
{
}
}
public class ErrorEventArgs : EventArgs
{
public ErrorEventArgs(long Err)
{
this.ErrNum = Err;
}
public readonly long ErrNum;
}
#endregion
}
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