WMPLib经常停止播放

问题描述

我通过以下方法播放mp3和m4as:

I play mp3s and m4as with the following method:

private void playmp3(string path)
    {
        WMPLib.WindowsMediaPlayer a = new WMPLib.WindowsMediaPlayer();
        a.URL = path;
        a.controls.play();
    }

通常，当我播放它们时，它们只播放大约5秒钟或更短的时间，然后停止播放.如果我以任何方式与(WPF)表单进行交互，它也会停止.我从BackgroundWorker呼叫playmp3.

Usually when I play them, they only play for around 5 seconds or less and then stop playing. If i interact with the (WPF) form in any way, it also stops. I call playmp3 from a BackgroundWorker.

移动鼠标后，它实际上停止播放约十分之一秒.

It actually stops playing about a tenth of a second after I move my mouse.

推荐答案

以简单的方式.宣布您是班级的玩家.

in simple way. declare you player in class level.

 WMPLib.WindowsMediaPlayer a;

 private void playmp3(string path)
{
    a = new WMPLib.WindowsMediaPlayer();
    a.URL = path;
    a.controls.play();
}

通过这种方式，您可以轻松解决问题

in this way you can resolve the problem easily

如果您使用相同的方法停止播放，则在其中使用if条件，例如

if you using the same method to stop playing like that stuffs using a if condition in it like this

private void playmp3(string path)
{
     a = new WMPLib.WindowsMediaPlayer();
     a.URL = path;
     a.controls.play();
}

您需要添加新的WMPLib.WindowsMediaPlayer();同样在类级别，每当您调用该方法时，它都会创建一个新的播放器实例并尝试停止或播放它，因此应这样做.

you need to add the new WMPLib.WindowsMediaPlayer(); also in the class level, other wise every time you call the method it create a new player instance and try to stop or play it so do it like this.

WMPLib.WindowsMediaPlayer a= new WMPLib.WindowsMediaPlayer();

private void playmp3(string path, string playState)
{

    a.URL = path;

    if(playstate.Equals("Play))
    {
    a.controls.play();
    }
    else if (playState.Equals("Stop"))
    {
      a.controls.stop();
    }
}

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