/*
* Return data as a byte array.
*/
private static byte[] readByte(String filename) {
byte[] data = null;
AudioInputStream ais = null;
try {
// try to read from file
File file = new File(filename);
if (file.exists()) {
ais = AudioSystem.getAudioInputStream(file);
data = new byte[ais.available()];
ais.read(data);
}
// try to read from URL
else {
URL url = StdAudio.class.getResource(filename);
ais = AudioSystem.getAudioInputStream(url);
data = new byte[ais.available()];
ais.read(data);
}
} catch (Exception e) {
System.out.println(e.getMessage());
throw new RuntimeException("Could not read " + filename);
}
return data;
}
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;
}
