NAudio通用:等待事件超时

Question

我无法使用Windows Universal的Naudio播放解码的opus数据包。声音会播放一瞬间，然后会因异常而停止。我收到的异常是InvalidOperation - Timed out waiting for event。

下面是我的代码：

public void ForStackOverFlow()
{
    var waveOut = new WasapiOutRT(AudioClientShareMode.Shared, 200);
    waveOut.PlaybackStopped += WaveOut_PlaybackStopped;
    var opusDecoder = OpusDecoder.Create(48000, 1);
    var ms = new MemoryStream();

    var voiceData1 = "3OxQRhb / datLhcmWgOhYPrYGwxyciCulHDwJl8RmJHkdWVcENoAYvgLtcFn0LBLbLJ2jHRPv8Wb / oZSsTp3oJbllORxffNIyZO1TCCf2L + dkN5AMKRmiIyYaJQrh5Bt4ucLfNskhwKwz / CfLV7RRTZrBJM + 0AqBXS9dt3 + yeBofItCGUm / GCT94pW5fl9U7Zez + RodOAzyEemdCS + Zfpquw0XctnM0L / b1llt3oHZOpot1BUY + tDyXmSNbcfxPjYmVvPT2y4aQ ==";
    var sample = Convert.FromBase64String(voiceData1);

    int frameSize = 1920;  

    short[] outputBuffer = new short[frameSize];
    var decodedLen = opusDecoder.Decode(sample, 0, sample.Length, outputBuffer, 0, frameSize, false);

    short[] finalOutput = new short[frameSize];
    Array.Copy(outputBuffer, finalOutput, finalOutput.Length); 

    var audioBytes = AudioMath.ShortsToBytes(finalOutput, 0, finalOutput.Length); 

    System.Diagnostics.Debug.WriteLine("AUDIOBYTES:" + Convert.ToBase64String(audioBytes));

    ms.Write(audioBytes, 0, audioBytes.Length);

    ms.Flush();
    ms.Seek(0, SeekOrigin.Begin);
    IWaveProvider provider = new RawSourceWaveStream(ms, new WaveFormat(48000, 16, 1));
    waveOut.Init(provider);
    waveOut.Play();
}

private void WaveOut_PlaybackStopped(object sender, StoppedEventArgs e)
{
    //event fires with exception.
}

任何帮助都将不胜感激。

Answer 1

这里你得到了结果的长度，对吗？

var decodedLen = opusDecoder.Decode

如果是，为什么不使用该变量创建finalOutput数组，并使用framesize常量呢？

short[] finalOutput = new short[frameSize];

这行不应该是这样的吗：

short[] finalOutput = new short[decodedLen];