我正在编写一个包含简单MP3 / WAV媒体播放器区域的程序。
我已经遵循了NAudio示例程序中包含的代码，这是我创建的用于封装可播放音频文件的类：
public sealed class PlaybackContext : IDisposable {
private String _fileName;
private DirectSoundOut _dsoundOut;
private WaveStream _waveStream;
public PlaybackContext(String fileName) {
_fileName = fileName;
_dsoundOut = new DirectSoundOut( DirectSoundOut.DSDEVID_DefaultPlayback );
String ext = Path.GetExtension( fileName );
if( ext.Equals(".mp3", StringComparison.OrdinalIgnoreCase) ) {
_waveStream = new Mp3FileReader( fileName );
} else if( ext.Equals(".wav", StringComparison.OrdinalIgnoreCase) ) {
_waveStream = new WaveFileReader( fileName );
switch( _waveStream.WaveFormat.Encoding ) {
case WaveFormatEncoding.Pcm:
case WaveFormatEncoding.IeeeFloat:
break;
default:
_waveStream = new BlockAlignReductionStream( WaveFormatConversionStream.CreatePcmStream( _waveStream ) );
break;
}
}
_dsoundOut.Init( _waveStream );
}
public void Play() {
_dsoundOut.Play();
}
// hidden are the Pause/Stop/Dispose methods
它适用于MP3文件，但当我尝试播放任何Wave文件时，我得到了这个例外：
Object contains non-primitive or non-blittable data.
System.ArgumentException
at System.Runtime.InteropServices.GCHandle.InternalAlloc(Object value, GCHandleType type)
at System.Runtime.InteropServices.GCHandle.Alloc(Object value, GCHandleType type)
at NAudio.Wave.DirectSoundOut.InitializeDirectSound()
at NAudio.Wave.DirectSoundOut.PlaybackThreadFunc()
at System.Threading.ThreadHelper.ThreadStart_Context(Object state)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
at System.Threading.ThreadHelper.ThreadStart()
我找不到Google的任何内容，我的代码是针对x86编译的（因此这不是64位问题）。否则我就被困住了。
有什么想法吗？