public static Clip loadClip(URL url) {
Clip clip = null;
String fnm = "" + url;
try {
AudioInputStream stream = AudioSystem.getAudioInputStream(url);
AudioFormat format = stream.getFormat();
if ((format.getEncoding() == AudioFormat.Encoding.ULAW)
|| (format.getEncoding() == AudioFormat.Encoding.ALAW)) {
AudioFormat newFormat =
new AudioFormat(
AudioFormat.Encoding.PCM_SIGNED,
format.getSampleRate(),
format.getSampleSizeInBits() * 2,
format.getChannels(),
format.getFrameSize() * 2,
format.getFrameRate(),
true); // big endian
stream = AudioSystem.getAudioInputStream(newFormat, stream);
// System.out.println("Converted Audio format: " + newFormat);
format = newFormat;
}
DataLine.Info info = new DataLine.Info(Clip.class, format);
// make sure sound system supports data line
if (!AudioSystem.isLineSupported(info)) {
System.out.println("Unsupported Clip File: " + fnm);
return null;
}
// get clip line resource
clip = (Clip) AudioSystem.getLine(info);
clip.open(stream); // open the sound file as a clip
stream.close(); // we're done with the input stream
// duration (in secs) of the clip
double duration = clip.getMicrosecondLength() / 1000000.0; // new
if (duration <= 1.0) {
System.out.println("WARNING. Duration <= 1 sec : " + duration + " secs");
System.out.println(
" The clip in " + fnm + " may not play in J2SE 1.5 -- make it longer");
}
// else
// System.out.println(fnm + ": Duration: " + duration + " secs");
} // end of try block
catch (UnsupportedAudioFileException audioException) {
System.out.println("Unsupported audio file: " + fnm);
} catch (LineUnavailableException noLineException) {
System.out.println("No audio line available for : " + fnm);
} catch (IOException ioException) {
System.out.println("Could not read: " + fnm);
} catch (Exception e) {
System.out.println("Problem with " + fnm);
}
return clip;
} // end of loadClip()
private static WAVData readFromStream(AudioInputStream aIn)
throws UnsupportedAudioFileException, IOException {
ReadableByteChannel aChannel = Channels.newChannel(aIn);
AudioFormat fmt = aIn.getFormat();
int numChannels = fmt.getChannels();
int bits = fmt.getSampleSizeInBits();
int format = AL_FORMAT_MONO8;
if ((bits == 8) && (numChannels == 1)) {
format = AL_FORMAT_MONO8;
} else if ((bits == 16) && (numChannels == 1)) {
format = AL_FORMAT_MONO16;
} else if ((bits == 8) && (numChannels == 2)) {
format = AL_FORMAT_STEREO8;
} else if ((bits == 16) && (numChannels == 2)) {
format = AL_FORMAT_STEREO16;
}
int freq = Math.round(fmt.getSampleRate());
int size = aIn.available();
ByteBuffer buffer = ByteBuffer.allocateDirect(size);
while (buffer.remaining() > 0) {
aChannel.read(buffer);
}
buffer.rewind();
// Must byte swap on big endian platforms
// Thanks to swpalmer on javagaming.org forums for hint at fix
if ((bits == 16) && (ByteOrder.nativeOrder() == ByteOrder.BIG_ENDIAN)) {
int len = buffer.remaining();
for (int i = 0; i < len; i += 2) {
byte a = buffer.get(i);
byte b = buffer.get(i + 1);
buffer.put(i, b);
buffer.put(i + 1, a);
}
}
WAVData result = new WAVData(buffer, format, size, freq, false);
aIn.close();
return result;
}
