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/* @test
@summary Test SoftChannel noteOn/noteOff overflow test */
import javax.sound.midi.MidiChannel;
import javax.sound.midi.VoiceStatus;
import javax.sound.sampled.AudioFormat;
import javax.sound.sampled.AudioInputStream;
import com.sun.media.sound.AudioSynthesizer;
import com.sun.media.sound.SoftSynthesizer;
public class NoteOverFlowTest {
public static void main(String[] args) throws Exception
{
AudioSynthesizer synth = new SoftSynthesizer();
AudioFormat format = new AudioFormat(44100, 16, 2, true, false);
AudioInputStream stream = synth.openStream(format, null);
// Make all voices busy, e.g.
// send midi on and midi off on all available voices
MidiChannel ch1 = synth.getChannels()[0];
ch1.programChange(48); // Use contionus instrument like string ensemble
for (int i = 0; i < synth.getMaxPolyphony(); i++) {
ch1.noteOn(64, 64);
ch1.noteOff(64);
}
// Now send single midi on, and midi off message
ch1.noteOn(64, 64);
ch1.noteOff(64);
// Read 10 sec from stream, by this time all voices should be inactvie
stream.skip(format.getFrameSize() * ((int)(format.getFrameRate() * 20)));
// If no voice are active, then this test will pass
VoiceStatus[] v = synth.getVoiceStatus();
for (int i = 0; i < v.length; i++) {
if(v[i].active)
{
throw new RuntimeException("Not all voices are inactive!");
}
}
// Close the synthesizer after use
synth.close();
}
}