问题描述
我有一个以字节数组形式接收 mp3 数据的程序.它必须将该 mp3 数据转换为 wav 格式并将其存储在字节数据中.我正在尝试为此目的使用 NAudio.为此,我使用了以下代码.
I have a program that takes in mp3 data in a byte array. It has to convert that mp3 data into wav format and store it in a byte data. I am trying to use NAudio for this purpose. I am using the following code for this purpose.
Stream inputStream = ...; Stream outputStream = ...; using (WaveStream waveStream = WaveFormatConversionStream.CreatePcmStream(new Mp3FileReader(inputStream))) using (WaveFileWriter waveFileWriter = new WaveFileWriter(outputStream, waveStream.WaveFormat)) { byte[] bytes = new byte[waveStream.Length]; waveStream.Read(bytes, 0, waveStream.Length); waveFileWriter.WriteData(bytes, 0, bytes.Length); waveFileWriter.Flush(); }
当我运行上面的代码时,我收到的只是字节数组中的 0.但是如果使用 WaveFileWriter 将数据直接写入文件,则文件会收到正确的数据.有什么原因吗?
When I run the above code, all I receive is 0 in the byte array. But if use WaveFileWriter to write the data directly to a file, the file receives the correct data. Any reasons?
推荐答案
试试这个:
using (WaveStream waveStream = WaveFormatConversionStream.CreatePcmStream(new Mp3FileReader(inputStream))) using (WaveFileWriter waveFileWriter = new WaveFileWriter(outputStream, waveStream.WaveFormat)) { byte[] bytes = new byte[waveStream.Length]; waveStream.Position = 0; waveStream.Read(bytes, 0, waveStream.Length); waveFileWriter.WriteData(bytes, 0, bytes.Length); waveFileWriter.Flush(); }