当使用NAudio播放MP3文件[在控制台中]时,我无法弄清楚如何停止播放。当我调用waveout.Stop()时,代码停止运行,waveout.Dispose()永远不会被调用。NAudio播放不会成功停止
它与函数回调有关吗?如果是这样,我该如何解决它?
static string MP3 = @"song.mp3";
static WaveOut waveout;
static WaveStream playback;
static void Main(string[] args)
{
waveout = new WaveOut(WaveCallbackInfo.FunctionCallback());
playback = OpenMp3Stream(MP3);
waveout.Init(playback);
waveout.Play();
Console.WriteLine("Started");
Thread.Sleep(2 * 1000);
Console.WriteLine("Ending");
if (waveout.PlaybackState != PlaybackState.Stopped)
waveout.Stop();
Console.WriteLine("Stopped");
waveout.Dispose();
Console.WriteLine("1st dispose");
playback.Dispose();
Console.WriteLine("2nd dispose");
}
private static WaveChannel32 OpenMp3Stream(string fileName)
{
WaveChannel32 inputStream;
WaveStream mp3Reader = new Mp3FileReader(fileName);
WaveStream pcmStream = WaveFormatConversionStream.CreatePcmStream(mp3Reader);
WaveStream blockAlignedStream = new BlockAlignReductionStream(pcmStream);
inputStream = new WaveChannel32(blockAlignedStream);
return inputStream;
}
我有一种感觉'使用'声明在这里非常方便,但我没有naudio,所以我不能真正地测试它。 – 2010-05-11 15:21:32
以及这只是示例代码,我不认为使用using语句在长期运行中确实有效。它实际上并没有从waveout.Stop()中实际返回。它进入功能,似乎根本没有离开。 – Kurru 2010-05-11 20:56:37