1 /*
   2  * Copyright (c) 2002, 2016, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  */
  23 
  24 import javax.sound.sampled.AudioFormat;
  25 import javax.sound.sampled.AudioSystem;
  26 import javax.sound.sampled.Clip;
  27 import javax.sound.sampled.DataLine;
  28 import javax.sound.sampled.Mixer;
  29 
  30 /**
  31  * @test
  32  * @bug 4732218
  33  * @summary Clip.drain does not actually block until all I/O is complete as
  34  *          documented.
  35  */
  36 public class ClipDrain {
  37     static int successfulTests = 0;
  38     static AudioFormat format = new AudioFormat(8000, 16, 1, true, false);
  39     // create a 10-second file
  40     static byte[] soundData = new byte[(int) (format.getFrameRate() * format.getFrameSize() * 10)];
  41 
  42     static int TOLERANCE_MS = 2500; // how many milliseconds too short is tolerated...
  43 
  44     private static void doMixerClip(Mixer mixer) throws Exception {
  45         boolean waitedEnough=false;
  46         try {
  47             DataLine.Info info = new DataLine.Info(Clip.class, format);
  48             Clip clip = (Clip) mixer.getLine(info);
  49             clip.open(format, soundData, 0, soundData.length);
  50 
  51             // sanity
  52             if (clip.getMicrosecondLength()/1000 < 9900) {
  53                 throw new Exception("clip's microsecond length should be at least 9900000, but it is "+clip.getMicrosecondLength());
  54             }
  55             long start = System.currentTimeMillis();
  56 
  57             System.out.println(" ---------- start --------");
  58             clip.start();
  59             // give time to actually start it. ALSA implementation needs that...
  60             Thread.sleep(300);
  61             System.out.println("drain ... ");
  62             clip.drain();
  63             long elapsedTime = System.currentTimeMillis() - start;
  64             System.out.println("close ... ");
  65             clip.close();
  66             System.out.println("... done");
  67             System.out.println("Playback duration: "+elapsedTime+" milliseconds.");
  68             waitedEnough = elapsedTime >= ((clip.getMicrosecondLength() / 1000) - TOLERANCE_MS);
  69         } catch (Throwable t) {
  70                 System.out.println("  - Caught exception. Not failed.");
  71                 System.out.println("  - "+t.toString());
  72                 return;
  73         }
  74         if (!waitedEnough) {
  75             throw new Exception("Drain did not wait long enough to play entire clip.");
  76         }
  77         successfulTests++;
  78     }
  79 
  80 
  81     private static void doAll() throws Exception {
  82         Mixer.Info[] mixers = AudioSystem.getMixerInfo();
  83         for (int i=0; i<mixers.length; i++) {
  84             Mixer mixer = AudioSystem.getMixer(mixers[i]);
  85             System.out.println("--------------");
  86             System.out.println("Testing mixer: "+mixers[i]);
  87             doMixerClip(mixer);
  88         }
  89         if (mixers.length==0) {
  90             System.out.println("No mixers available!");
  91         }
  92     }
  93 
  94     public static void main(String[] args) throws Exception {
  95         if (!isSoundcardInstalled()) {
  96             return;
  97         }
  98         doAll();
  99         if (successfulTests==0) {
 100             System.out.println("Could not execute any of the tests. Test NOT failed.");
 101         } else {
 102             System.out.println("Test PASSED.");
 103         }
 104     }
 105 
 106     /**
 107      * Returns true if at least one soundcard is correctly installed
 108      * on the system.
 109      */
 110     public static boolean isSoundcardInstalled() {
 111         boolean result = false;
 112         try {
 113             Mixer.Info[] mixers = AudioSystem.getMixerInfo();
 114             if (mixers.length > 0) {
 115                 result = AudioSystem.getSourceDataLine(null) != null;
 116             }
 117         } catch (Exception e) {
 118             System.err.println("Exception occured: "+e);
 119         }
 120         if (!result) {
 121             System.err.println("Soundcard does not exist or sound drivers not installed!");
 122             System.err.println("This test requires sound drivers for execution.");
 123         }
 124         return result;
 125     }
 126 }