WaveFileWriter.java 文件源码

@Override
public AudioFileFormat.Type[] getAudioFileTypes(AudioInputStream stream) {

    AudioFileFormat.Type[] filetypes = new AudioFileFormat.Type[types.length];
    System.arraycopy(types, 0, filetypes, 0, types.length);

    // make sure we can write this stream
    AudioFormat format = stream.getFormat();
    AudioFormat.Encoding encoding = format.getEncoding();

    if( AudioFormat.Encoding.ALAW.equals(encoding) ||
        AudioFormat.Encoding.ULAW.equals(encoding) ||
        AudioFormat.Encoding.PCM_SIGNED.equals(encoding) ||
        AudioFormat.Encoding.PCM_UNSIGNED.equals(encoding) ) {

        return filetypes;
    }

    return new AudioFileFormat.Type[0];
}