n音讯播放也不会成功阻止 [英] NAudio playback won't stop successfully

问题描述

在使用 n音讯以回放的 MP3 文件[控制台]，我无法弄清楚如何停止播放。当我打电话waveout.Stop（）的code只是停止运行，waveout.Dispose（）永远不会被调用。

有它的东西做的回调函数？如果是，我该如何解决这个问题？

 静态字符串MP3 = @Song.mp3的;
静态waveout的waveout的;
静态的WaveStream播放;
静态无效的主要（字串[] args）
{
    waveout的=新waveout的（WaveCallbackInfo.FunctionCallback（））;
    重放= OpenMp3Stream（MP3）;
    waveout.Init（播放）;
    waveout.Play（）;
    Console.WriteLine（入门）;

    Thread.sleep代码（2 * 1000）;

    Console.WriteLine（结束）;
    如果（waveout.PlaybackState！= PlaybackState.Stopped）
        waveout.Stop（）;
    Console.WriteLine（停止）;
    waveout.Dispose（）;
    Console.WriteLine（第一处置）;
    playback.Dispose（）;
    Console.WriteLine（第二届处置）;
}
私有静态WaveChannel32 OpenMp3Stream（字符串文件名）
{
    WaveChannel32的InputStream;
    的WaveStream mp3Reader =新Mp3FileReader（文件名）;
    的WaveStream pcmStream = WaveFor​​matConversionStream.CreatePcmStream（mp3Reader）;
    的WaveStream blockAlignedStream =新BlockAlignReductionStream（pcmStream）;
    的InputStream =新WaveChannel32（blockAlignedStream）;
    返回InputStream的;
}
 

解决方案

您说的code挂在调用waveOutReset？如果是这样，这是与函数回调和某些音频驱动程序的一个已知问题（SoundMAX的似乎特别容易受到这一点）。我在一个可能的修复到n音讯源$ C ​​$ CA几个月前检查，所以你可以尝试建立最新的code，看是否能解决问题。

When using NAudio to playback an MP3 file [in the console], I can't figure out how to stop the playback. When I call waveout.Stop() the code just stops running and waveout.Dispose() never gets called.

Has it something to do with the function callback? If it is, how do I fix it?

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;
}

解决方案

Are you saying the code hangs in the call to waveOutReset? If so, this is a known issue with function callbacks and certain audio drivers (SoundMAX seems particularly susceptible to this). I checked in a possible fix to the NAudio source code a couple of months ago, so you could try building the latest code and seeing if that fixes the issue.

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