private Line.Info[] getPortInfo(Mixer mixer) {
Line.Info[] infos;
List<Line.Info> portInfoList = new ArrayList<>();
infos = mixer.getSourceLineInfo();
for (Line.Info info : infos) {
if (info instanceof Port.Info || info instanceof DataLine.Info) {
portInfoList.add(info);
}
}
infos = mixer.getTargetLineInfo();
for (Line.Info info1 : infos) {
if (info1 instanceof Port.Info || info1 instanceof DataLine.Info) {
portInfoList.add(info1);
}
}
return portInfoList.toArray(EMPTY_PORT_INFO_ARRAY);
}
private boolean arePortsSupported(Mixer mixer) {
Line.Info[] infos;
infos = mixer.getSourceLineInfo();
for (Line.Info info : infos) {
if (info instanceof Port.Info) {
return true;
} else if (info instanceof DataLine.Info) {
return true;
}
}
infos = mixer.getTargetLineInfo();
for (Line.Info info : infos) {
if (info instanceof Port.Info) {
return true;
} else if (info instanceof DataLine.Info) {
return true;
}
}
return false;
}
private void mixerComboBoxActionPerformed() {
Mixer mixer = AudioSystem.getMixer((Mixer.Info) mixerComboBox.getSelectedItem());
Line.Info lineInfo = mixer.getSourceLineInfo(new Line.Info(Clip.class))[0];
boolean volumeSupported;
boolean panSupported;
try {
Line line = mixer.getLine(lineInfo);
volumeSupported = line.isControlSupported(FloatControl.Type.MASTER_GAIN);
panSupported = line.isControlSupported(FloatControl.Type.PAN);
} catch (LineUnavailableException e) {
volumeSupported = false;
panSupported = false;
}
enableMixerVolumeCheckBox.setEnabled(volumeSupported);
enableMixerPanCheckBox.setEnabled(panSupported);
}