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
24import javax.sound.sampled.AudioFormat;
25import javax.sound.sampled.AudioSystem;
26import javax.sound.sampled.DataLine;
27import javax.sound.sampled.LineUnavailableException;
28import javax.sound.sampled.Mixer;
29import javax.sound.sampled.SourceDataLine;
30
31/**
32 * @test
33 * @bug 4661602
34 * @summary Buffersize is checked when re-opening line
35 */
36public 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}
92