ClipSetPos.java revision 3861:3549cec980ff 
1/*
2 * Copyright (c) 2011, 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.  Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26/**
27 * @test
28 * @bug 6801206
29 * @summary Tests that Clip sets frame position
30 * @author Alex Menkov
31 */
32
33import javax.sound.sampled.AudioFormat;
34import javax.sound.sampled.AudioSystem;
35import javax.sound.sampled.Clip;
36import javax.sound.sampled.DataLine;
37import javax.sound.sampled.LineUnavailableException;
38
39public class ClipSetPos {
40
41    final static AudioFormat audioFormat = new AudioFormat(44100f, 16, 2, true, true);
42    final static int frameLength = 44100 * 2; // 2 seconds
43    final static byte[] dataBuffer
44            = new byte[frameLength * (audioFormat.getSampleSizeInBits()/8)
45                       * audioFormat.getChannels()];
46    final static int MAX_FRAME_DELTA = 20;
47
48    public static void main(String[] args) {
49        boolean testPassed = true;
50        Clip clip = null;
51        try {
52            clip = (Clip)AudioSystem.getLine(new DataLine.Info(Clip.class, audioFormat));
53            clip.open(audioFormat, dataBuffer, 0, dataBuffer.length);
54        } catch (LineUnavailableException ex) {
55            log(ex);
56            log("Cannot test (this is not failure)");
57            return;
58        } catch (IllegalArgumentException ex) {
59            log(ex);
60            log("Cannot test (this is not failure)");
61            return;
62        }
63
64        log("clip: " + clip.getClass().getName());
65
66        int len = clip.getFrameLength();
67        for (int pos=0; pos < len; pos += (len /100)) {
68            clip.setFramePosition(pos);
69            int curPos = clip.getFramePosition();
70            if (Math.abs(pos - curPos) > MAX_FRAME_DELTA) {
71                log("Tried to set pos to " + pos + ", but got back " + curPos);
72                testPassed = false;
73            } else {
74                log("Sucessfully set pos to " + pos);
75            }
76        }
77        clip.close();
78
79        if (testPassed) {
80            log("Test PASSED.");
81        } else {
82            log("Test FAILED.");
83            throw new RuntimeException("Test FAILED (see log)");
84        }
85    }
86
87    static void log(String s) {
88        System.out.println(s);
89    }
90
91    static void log(Exception ex) {
92        ex.printStackTrace(System.out);
93    }
94
95}
96