c# - 从PCM样本创建WaveStream

我检查了NAudio及其与WaveStream相关的类，但找不到基于我提供的PCM示例创建WaveStream的内置方法。

理想情况下，我想执行以下操作:

byte[] samples = ...
WaveFormat waveFormat = new WaveFormat(audioSampleRate,
                                       audioBitsPerSample,
                                       audioChannels);
WaveStream waveStream = CreateWaveStreamfromSamples(waveFormat,
                                                    samples);

是否可以使用NAudio做到这一点？

经过Hans，Mark的澄清后，编辑(感谢您的反馈):

我需要一个可以传递给SoundPlayer.Play的流，这与WaveStream不合适。在我的项目中，我最终实现了以下类，该类带有示例和WaveFormat，并且可以由SoundPlayer播放。

public class MemoryWaveStream : Stream
{
    public override bool CanSeek { get { return false; } }
    public override bool CanWrite { get { return false; } }
    public override bool CanRead { get { return true; } }
    public override long Length { get { return _waveStream.Length; } }
    public override long Position { get { return _waveStream.Position; } set { _waveStream.Position = value; } }

    private MemoryStream _waveStream;

    public MemoryWaveStream(byte[] sampleData, WaveFormat waveFormat)
    {
        _waveStream = new MemoryStream();
        BinaryWriter bw = new BinaryWriter(_waveStream);
        bw.Write(new char[4] { 'R', 'I', 'F', 'F' });

        int length = 36 + sampleData.Length;
        bw.Write(length);

        bw.Write(new char[8] { 'W', 'A', 'V', 'E', 'f', 'm', 't', ' ' });

        waveFormat.Serialize(bw);
        bw.Write(new char[4] { 'd', 'a', 't', 'a' });
        bw.Write(sampleData.Length);
        bw.Write(sampleData, 0, sampleData.Length);
        _waveStream.Position = 0;
    }

    public override int Read(byte[] buffer, int offset, int count)
    {
        return _waveStream.Read(buffer, offset, count);
    }

    public override void Flush()
    {
        _waveStream.Flush();
    }

    public override long Seek(long offset, SeekOrigin origin)
    {
        return _waveStream.Seek(offset, origin);
    }

    public override void SetLength(long value)
    {
        throw new NotImplementedException();
    }
    public override void Write(byte[] buffer, int offset, int count)
    {
        throw new NotImplementedException();
    }
}

最佳答案

不，没有喜欢的东西。但是，您可以创建自己的。 wave \ wavestream \ wavefilereader.cs源代码文件可能是最佳入门。您可以从中剥离一堆东西，用正确初始化的MemoryStream替换waveStream。