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 }