我试图通过从MemoryStream解压缩来播放MP3，但由于未知原因，mp3帧始终为空。
private MemoryStream audioStream = new MemoryStream();
public void FillMemoryStream(){
OpenFileDialog openFile = new OpenFileDialog();
openFile.ShowDialog();
FileStream f = new FileStream(openFile.FileName, FileMode.Open);
f.CopyTo(audioStream);
}
因此，在FillMemoryStream方法中，我打开一个mp3文件，然后将所有字节写入名为MemoryStream的{{1}}。
audioStream我使用了NAudio MP3StreamingDemo中的方法进行了修改，而不是使用private void StreamMp3(object state)
{
fullyDownloaded = true;
var url = (string)state;
var buffer = new byte[16384 * 4]; // needs to be big enough to hold a decompressed frame
IMp3FrameDecompressor decompressor = null;
try
{
using (audioStream)
{
var readFullyStream = new ReadFullyStream(audioStream);
do
{
if (IsBufferNearlyFull)
{
Debug.WriteLine("Buffer getting full, taking a break");
Thread.Sleep(500);
}
else
{
Mp3Frame frame;
try
{
frame = Mp3Frame.LoadFromStream(readFullyStream);
}
catch (EndOfStreamException)
{
fullyDownloaded = true;
// reached the end of the MP3 file / stream
break;
}
if (decompressor == null)
{
decompressor = CreateFrameDecompressor(frame);
bufferedWaveProvider = new BufferedWaveProvider(decompressor.OutputFormat);
bufferedWaveProvider.BufferDuration = TimeSpan.FromSeconds(20);
}
int decompressed = decompressor.DecompressFrame(frame, buffer, 0);
bufferedWaveProvider.AddSamples(buffer, 0, decompressed);
}
} while (playbackState != StreamingPlaybackState.Stopped);
decompressor.Dispose();
}
}
finally
{
if (decompressor != null)
{
decompressor.Dispose();
}
}
}
流而是使用了HttpWebResponse。为什么我的“框架”总是为空？
P.S。我不想使用MemoryStream来打开文件，因为mp3的来源将来自udp连接。
更新：
即使我将Mp3FileReader更改为此
FillMemoryStream我的画面仍为空。