如何在naudio中逐帧直播mp3帧

Question

I am trying to live stream the audio in mp3 format while recording but i cannot achieve good streaming quality.

what i am doing is getting 10 seconds of PCM data from "WI_DataAvailable" and convert it to MP3 then send the frames in network. it produce little silent between the 10 sec of data.

I like to stream continues mp3 frames by frames while recording. is there any proper way?

Answer 1

Given that LameMP3FileWriter takes a Stream to write to, I would suggest implementing your own stream class and simply writing all the data that arrives in the Write method to UDP. Then you can pass this to the LameMP3FileWriter.

Here's a bare-bones stream class that should get you started. You'll need to fill in the blanks for method Write , and possibly Flush . I imagine you can leave everything else as NotImplemented.

public class UdpStream:Stream
{
    public override int Read(byte[] buffer, int offset, int count)
    {
        //you'll definitely need to implement this...
        //write the buffer to UDP
    }

    public override void Flush()
    {
        //you might need to implement this
    }

    public override bool CanRead
    {
        get { return false; }
    }

    public override bool CanSeek
    {
        get { return false; }
    }

    public override bool CanWrite
    {
        get { return true; }
    }

    public override long Seek(long offset, SeekOrigin origin)
    {
        throw new NotImplementedException();
    }

    public override void SetLength(long value)
    {
        throw new NotImplementedException();
    }


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

    public override long Length
    {
        get { throw new NotImplementedException(); }
    }

    public override long Position { 
        get{throw new NotImplementedException();} 
        set{throw new NotImplementedException();} 
    }
}