private synchronized void startSampled(AudioInputStream as, InputStream in)
throws UnsupportedAudioFileException, LineUnavailableException {
Info info = null;
DataPusher datapusher = null;
DataLine.Info lineinfo = null;
SourceDataLine sourcedataline = null;
// if ALAW or ULAW, we must convert....
as = Toolkit.getPCMConvertedAudioInputStream(as);
if (as == null) {
// could not convert
return;
}
lineinfo = new DataLine.Info(SourceDataLine.class, as.getFormat());
if (!(AudioSystem.isLineSupported(lineinfo))) {
return;
}
sourcedataline = (SourceDataLine) AudioSystem.getLine(lineinfo);
datapusher = new DataPusher(sourcedataline, as);
info = new Info(null, in, datapusher);
infos.addElement(info);
datapusher.start();
}
public static void render(OutputStream os, AudioFormat format, Map<String, Object> info)
throws Exception {
AudioSynthesizer synth = (AudioSynthesizer) new SoftSynthesizer();
AudioInputStream stream = synth.openStream(format, info);
Receiver recv = synth.getReceiver();
Soundbank defsbk = synth.getDefaultSoundbank();
if (defsbk != null) synth.unloadAllInstruments(defsbk);
synth.loadAllInstruments(soundbank);
double totalTime = 5;
send(sequence, recv);
long len = (long) (stream.getFormat().getFrameRate() * (totalTime + 4));
stream = new AudioInputStream(stream, stream.getFormat(), len);
long t = System.currentTimeMillis();
AudioSystem.write(stream, AudioFileFormat.Type.WAVE, os);
t = System.currentTimeMillis() - t;
stream.close();
}
/** Loads a Sound from an AudioInputStream. */
public Sound getSound(AudioInputStream audioStream) {
if (audioStream == null) {
return null;
}
// get the number of bytes to read
int length = (int) (audioStream.getFrameLength() * audioStream.getFormat().getFrameSize());
// read the entire stream
byte[] samples = new byte[length];
DataInputStream is = new DataInputStream(audioStream);
try {
is.readFully(samples);
is.close();
} catch (IOException ex) {
ex.printStackTrace();
}
// return the samples
return new Sound(samples);
}