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
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7 * published by the Free Software Foundation.
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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.
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21 * questions.
22 */
23
24/* @test
25   @summary Test SoftLimiter processAudio method
26   @modules java.desktop/com.sun.media.sound
27*/
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_overdrive {
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(null, null);
52
53        SoftAudioBuffer in1 = new SoftAudioBuffer(250, synth.getFormat());
54        SoftAudioBuffer in2 = new SoftAudioBuffer(250, synth.getFormat());
55        SoftAudioBuffer out1 = new SoftAudioBuffer(250, synth.getFormat());
56        SoftAudioBuffer out2 = new SoftAudioBuffer(250, synth.getFormat());
57
58        float[] testdata1 = new float[in1.getSize()];
59        float[] testdata2 = new float[in2.getSize()];
60        float[] n1a = in1.array();
61        float[] n2a = in2.array();
62        float[] out1a = out1.array();
63        float[] out2a = out2.array();
64        for (int i = 0; i < n1a.length; i++) {
65            testdata1[i] = (float)Math.sin(i*0.3)*2.5f;
66            testdata2[i] = (float)Math.sin(i*0.4)*2.5f;
67            n1a[i] = testdata1[i];
68            n2a[i] = testdata2[i];
69            out1a[i] = 1;
70            out2a[i] = 1;
71        }
72
73        SoftLimiter limiter = new SoftLimiter();
74        limiter.init(44100, 147);
75        limiter.setMixMode(true);
76        limiter.setInput(0, in1);
77        limiter.setInput(1, in2);
78        limiter.setOutput(0, out1);
79        limiter.setOutput(1, out2);
80        limiter.processControlLogic();
81        limiter.processAudio();
82        limiter.processControlLogic();
83        limiter.processAudio();
84        // Limiter should delay audio by one buffer,
85        // and there should almost no different in output v.s. input
86        for (int i = 0; i < n1a.length; i++) {
87            if(Math.abs(out1a[i]-1) > 1.0)
88                throw new Exception("abs(output)>1");
89            if(Math.abs(out2a[i]-1) > 1.0)
90                throw new Exception("abs(output)>1");
91        }
92
93        synth.close();
94    }
95}
96