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