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/*
* Copyright (c) 2005, 2017, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
import java.util.concurrent.TimeUnit;
import javax.sound.sampled.AudioFormat;
import javax.sound.sampled.AudioSystem;
import javax.sound.sampled.Clip;
import javax.sound.sampled.DataLine;
import javax.sound.sampled.LineUnavailableException;
/*
* @test
* @bug 5070081
* @summary Tests that javax.sound.sampled.Clip does not loses position through
* stop/start
*/
public class bug5070081 {
static AudioFormat format = new AudioFormat(22050, 8, 1, false, false);
// create a 3-second file
static byte[] soundData = new byte[(int) (format.getFrameRate() * format.getFrameSize() * 3)];
static final int LOOP_COUNT = 5;
static boolean test() throws Exception {
DataLine.Info info = new DataLine.Info(Clip.class, format);
Clip clip = null;
boolean bSuccess = true;
try {
clip = (Clip) AudioSystem.getLine(info);
clip.open(format, soundData, 0, soundData.length);
} catch (LineUnavailableException | IllegalArgumentException ignored) {
// the test is not applicable
return bSuccess;
}
long nLengthMS = clip.getMicrosecondLength()/1000;
System.out.println(" Clip length:");
System.out.println(" frames: " + clip.getFrameLength());
System.out.println(" seconds: " + nLengthMS/1000.0);
clip.start(); // start playing
Thread.sleep(1000); // wait a sec
long time1 = currentTimeMillis();
long pos1 = clip.getFramePosition(); // store the position
clip.stop(); // and then stop
long pos2 = clip.getFramePosition(); // 2nd try
long time2 = currentTimeMillis();
System.out.println(" Position before stop: " + pos1);
System.out.println(" Position after stop: " + pos2);
long timeDiff = Math.abs(time2 - time1);
// sample rate is 22050 per second, so 22.05 per ms
long posDiff = (long) (Math.abs(pos2 - pos1) / 22.05);
System.out.println(" d(time): " + timeDiff + " ms;"
+ "d(clip pos time): " + posDiff + " ms.");
long nDerivation = posDiff - timeDiff;
// add 50 ms for deviation (delay for stopping and errors due timer precision)
if (nDerivation > 50) {
System.out.println(" ERROR(1): The deviation is too much: " + nDerivation + " ms");
bSuccess = false;
}
Thread.sleep(1000);
clip.start(); // start again
Thread.sleep(100);
while(clip.isRunning()); // wait for the sound to finish
int nEndPos = clip.getFramePosition();
System.out.println(" Position at end: " + nEndPos);
if (nEndPos > clip.getFrameLength()) {
System.out.println(" ERROR(2): end position if out of range");
bSuccess = false;
}
clip.close();
return bSuccess;
}
public static void main(String[] args) throws Exception {
for (int count=1; count <= LOOP_COUNT; count++)
{
System.out.println("loop " + count + "/" + LOOP_COUNT);
if (!test())
{
System.out.println("Test FAILED");
throw new RuntimeException("Test FAILED.");
}
}
System.out.println("Test passed sucessfully");
}
private static long currentTimeMillis() {
return TimeUnit.NANOSECONDS.toMillis(System.nanoTime());
}
}
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