ProcessAudio_replace_mix_mono.java revision 829:b06c29386f63 
1/*
2 * Copyright 2007 Sun Microsystems, Inc.  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.  Sun designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Sun 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
22 * CA 95054 USA or visit www.sun.com if you need additional information or
23 * have any questions.
24 */
25
26/* @test
27   @summary Test SoftLimiter processAudio method */
28
29import javax.sound.midi.MidiUnavailableException;
30import javax.sound.midi.Patch;
31import javax.sound.sampled.*;
32
33import com.sun.media.sound.*;
34
35public class ProcessAudio_replace_mix_mono {
36
37    private static void assertEquals(Object a, Object b) throws Exception
38    {
39        if(!a.equals(b))
40            throw new RuntimeException("assertEquals fails!");
41    }
42
43    private static void assertTrue(boolean value) throws Exception
44    {
45        if(!value)
46            throw new RuntimeException("assertTrue fails!");
47    }
48
49    public static void main(String[] args) throws Exception {
50        SoftSynthesizer synth = new SoftSynthesizer();
51        synth.openStream(new AudioFormat(44100, 16, 1, true, false), null);
52
53        SoftAudioBuffer in1 = new SoftAudioBuffer(250, synth.getFormat());
54        SoftAudioBuffer out1 = new SoftAudioBuffer(250, synth.getFormat());
55
56        float[] testdata1 = new float[in1.getSize()];
57        float[] n1a = in1.array();
58        float[] out1a = out1.array();
59        for (int i = 0; i < n1a.length; i++) {
60            testdata1[i] = (float)Math.sin(i*0.3)*0.9f;
61            n1a[i] = testdata1[i];
62            out1a[i] = 1;
63        }
64
65        SoftLimiter limiter = new SoftLimiter();
66        limiter.init(44100, 147);
67        limiter.setMixMode(true);
68        limiter.setInput(0, in1);
69        limiter.setOutput(0, out1);
70        limiter.processControlLogic();
71        limiter.processAudio();
72        limiter.processControlLogic();
73        limiter.processAudio();
74        // Limiter should delay audio by one buffer,
75        // and there should almost no different in output v.s. input
76        for (int i = 0; i < n1a.length; i++) {
77            if(Math.abs(out1a[i] - testdata1[i] - 1) > 0.00001)
78                throw new Exception("input != output");
79        }
80
81        synth.close();
82    }
83}
84