WaveExtensibleFileReader.java 文件源码

@Override
public AudioInputStream getAudioInputStream(final InputStream stream)
        throws UnsupportedAudioFileException, IOException {

    final StandardFileFormat format = getAudioFileFormat(stream);
    final AudioFormat af = format.getFormat();
    final long length = format.getLongFrameLength();
    // we've got everything, the stream is supported and it is at the
    // beginning of the header, so find the data chunk again and return an
    // AudioInputStream
    final RIFFReader riffiterator = new RIFFReader(stream);
    while (riffiterator.hasNextChunk()) {
        RIFFReader chunk = riffiterator.nextChunk();
        if (chunk.getFormat().equals("data")) {
            return new AudioInputStream(chunk, af, length);
        }
    }
    throw new UnsupportedAudioFileException();
}