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.DataLine;

    27 import javax.sound.sampled.LineUnavailableException;

    28 import javax.sound.sampled.Mixer;

    29 import javax.sound.sampled.SourceDataLine;

    30 

    31 /**

    32  * @test

    33  * @bug 4661602

    34  * @summary Buffersize is checked when re-opening line

    35  */

    36 public class BufferSizeCheck {

    37 

    38     public static void main(String[] args) throws Exception {

    39         boolean realTest = false;

    40         if (!isSoundcardInstalled()) {

    41             return;

    42         }

    43 

    44         try {

    45             out("4661602: Buffersize is checked when re-opening line");

    46             AudioFormat format = new AudioFormat(44100, 16, 2, true, false);

    47             DataLine.Info info = new DataLine.Info(SourceDataLine.class, format);

    48             SourceDataLine sdl = (SourceDataLine) AudioSystem.getLine(info);

    49             out("Opening with buffersize 12000...");

    50             sdl.open(format, 12000);

    51             out("Opening with buffersize 11000...");

    52             realTest=true;

    53             sdl.open(format, 11000);

    54             try {

    55                 sdl.close();

    56             } catch(Throwable t) {}

    57         } catch (Exception e) {

    58             e.printStackTrace();

    59             // do not fail if no audio device installed - bug 4742021

    60             if (realTest || !(e instanceof LineUnavailableException)) {

    61                 throw e;

    62             }

    63         }

    64         out("Test passed");

    65     }

    66 

    67     static void out(String s) {

    68         System.out.println(s); System.out.flush();

    69     }

    70 

    71     /**

    72      * Returns true if at least one soundcard is correctly installed

    73      * on the system.

    74      */

    75     public static boolean isSoundcardInstalled() {

    76         boolean result = false;

    77         try {

    78             Mixer.Info[] mixers = AudioSystem.getMixerInfo();

    79             if (mixers.length > 0) {

    80                 result = AudioSystem.getSourceDataLine(null) != null;

    81             }

    82         } catch (Exception e) {

    83             System.err.println("Exception occured: "+e);

    84         }

    85         if (!result) {

    86             System.err.println("Soundcard does not exist or sound drivers not installed!");

    87             System.err.println("This test requires sound drivers for execution.");

    88         }

    89         return result;

    90     }

    91 }