1/*
2 * Copyright (c) 2007, 2015, 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/* @test
25   @summary Test AudioFloatInputStream skip method
26   @modules java.desktop/com.sun.media.sound
27*/
28
29import java.io.*;
30
31import javax.sound.sampled.*;
32
33import com.sun.media.sound.*;
34
35public class Skip {
36
37    static float[] test_float_array;
38    static byte[] test_byte_array;
39    static AudioFormat format = new AudioFormat(44100, 16, 1, true, false);
40
41    static AudioFloatInputStream getStream1()
42    {
43        return AudioFloatInputStream.getInputStream(format, test_byte_array, 0, test_byte_array.length);
44    }
45
46    static AudioFloatInputStream getStream2()
47    {
48        AudioInputStream strm = new AudioInputStream(new ByteArrayInputStream(test_byte_array), format, 1024);
49        return AudioFloatInputStream.getInputStream(strm);
50    }
51
52    static void setUp() throws Exception {
53        test_float_array = new float[1024];
54        test_byte_array = new byte[1024*format.getFrameSize()];
55        for (int i = 0; i < 1024; i++) {
56            double ii = i / 1024.0;
57            ii = ii * ii;
58            test_float_array[i] = (float)Math.sin(10*ii*2*Math.PI);
59            test_float_array[i] += (float)Math.sin(1.731 + 2*ii*2*Math.PI);
60            test_float_array[i] += (float)Math.sin(0.231 + 6.3*ii*2*Math.PI);
61            test_float_array[i] *= 0.3;
62        }
63        AudioFloatConverter.getConverter(format).toByteArray(test_float_array, test_byte_array);
64    }
65
66    public static void main(String[] args) throws Exception {
67        setUp();
68
69        for (int i = 0; i < 2; i++) {
70            AudioFloatInputStream stream = null;
71            if(i == 0) stream = getStream1();
72            if(i == 1) stream = getStream2();
73            float[] buff = new float[512];
74            stream.skip(512);
75            stream.read(buff);
76            for (int j = 0; j < buff.length; j++)
77                if(!(Math.abs(buff[j] - test_float_array[j+512]) < 0.0001))
78                    throw new RuntimeException("Incorrect data in buffer.");
79
80        }
81    }
82
83}
84