private void extractLibraryInfo() {
libraries = new LinkedHashMap<String, LibraryInfo>();
List<Device> devices = new ArrayList<Device>();
List<Device> inputDevices = new ArrayList<Device>();
for (AudioServerProvider lib : Lookup.SYSTEM.getAll(AudioServerProvider.class)) {
LOG.log(Level.FINE, "Audio Library : {0}", lib.getLibraryName());
devices.clear();
inputDevices.clear();
for (Device device : lib.findAll(Device.class)) {
if (device.getMaxOutputChannels() > 0) {
LOG.log(Level.FINE, "-- Found device : {0}", device.getName());
devices.add(device);
} else if (device.getMaxInputChannels() > 0) {
LOG.log(Level.FINE, "-- Found input device : {0}", device.getName());
inputDevices.add(device);
}
}
libraries.put(
lib.getLibraryName(),
new LibraryInfo(
lib,
devices.toArray(new Device[devices.size()]),
inputDevices.toArray(new Device[inputDevices.size()])));
}
}
private Device findDevice(LibraryInfo info, boolean usingDefault, boolean input) {
String name = null;
if (usingDefault) {
name = input ? AudioSettings.getInputDeviceName() : AudioSettings.getDeviceName();
} else {
if (input) {
name = inputDeviceName == null ? null : inputDeviceName.value;
} else {
name = deviceName == null ? null : deviceName.value;
}
}
if (name == null || name.trim().isEmpty()) {
return null;
}
Device[] devices = input ? info.inputDevices : info.devices;
for (Device device : devices) {
if (device.getName().equals(name)) {
return device;
}
}
for (Device device : devices) {
if (device.getName().contains(name)) {
return device;
}
}
return null;
}
private void validateDevices() {
if (deviceName == null || inputDeviceName == null) {
return;
}
LibraryInfo info = libraries.get(audioLib.value);
if (info == null) {
return;
}
Device primary = findDevice(info, false, false);
if (primary != null && primary.getMaxInputChannels() > 0) {
inputDeviceName.value = "";
}
}
private AudioServer createServer(BusClient bus) throws Exception {
float srate = sampleRate.value;
int buffersize = getBuffersize();
boolean usingDefault = false;
LibraryInfo info = libraries.get(audioLib.value);
if (info == null) {
info = libraries.get(AudioSettings.getLibrary());
if (info == null) {
throw new IllegalStateException("Audio library not found");
}
usingDefault = true;
}
LOG.log(
Level.FINE,
"Found audio library {0}\n{1}",
new Object[] {info.provider.getLibraryName(), info.provider.getLibraryDescription()});
Device device = findDevice(info, usingDefault, false);
if (device != null) {
LOG.log(Level.FINE, "Found device : {0}", device.getName());
}
Device inputDevice = null;
if (device != null && device.getMaxInputChannels() == 0 && bus.getSourceCount() > 0) {
inputDevice = findDevice(info, usingDefault, true);
if (inputDevice != null) {
LOG.log(Level.FINE, "Found input device : {0}", inputDevice.getName());
}
}
ClientID clientID = new ClientID("PraxisLIVE-" + getAddress().getRootID());
AudioConfiguration ctxt =
new AudioConfiguration(
srate,
bus.getSourceCount(),
bus.getSinkCount(),
buffersize,
createCheckedExts(device, inputDevice, clientID));
return info.provider.createServer(ctxt, bus);
}