ProcessAudio_replace_mix_overdrive.java revision 8729:0242fce0f717 
1/*
2 * Copyright (c) 2007, 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 SoftLimiter processAudio method */
26
27import javax.sound.midi.MidiUnavailableException;
28import javax.sound.midi.Patch;
29import javax.sound.sampled.*;
30
31import com.sun.media.sound.*;
32
33public class ProcessAudio_replace_mix_overdrive {
34
35    private static void assertEquals(Object a, Object b) throws Exception
36    {
37        if(!a.equals(b))
38            throw new RuntimeException("assertEquals fails!");
39    }
40
41    private static void assertTrue(boolean value) throws Exception
42    {
43        if(!value)
44            throw new RuntimeException("assertTrue fails!");
45    }
46
47    public static void main(String[] args) throws Exception {
48        SoftSynthesizer synth = new SoftSynthesizer();
49        synth.openStream(null, null);
50
51        SoftAudioBuffer in1 = new SoftAudioBuffer(250, synth.getFormat());
52        SoftAudioBuffer in2 = new SoftAudioBuffer(250, synth.getFormat());
53        SoftAudioBuffer out1 = new SoftAudioBuffer(250, synth.getFormat());
54        SoftAudioBuffer out2 = new SoftAudioBuffer(250, synth.getFormat());
55
56        float[] testdata1 = new float[in1.getSize()];
57        float[] testdata2 = new float[in2.getSize()];
58        float[] n1a = in1.array();
59        float[] n2a = in2.array();
60        float[] out1a = out1.array();
61        float[] out2a = out2.array();
62        for (int i = 0; i < n1a.length; i++) {
63            testdata1[i] = (float)Math.sin(i*0.3)*2.5f;
64            testdata2[i] = (float)Math.sin(i*0.4)*2.5f;
65            n1a[i] = testdata1[i];
66            n2a[i] = testdata2[i];
67            out1a[i] = 1;
68            out2a[i] = 1;
69        }
70
71        SoftLimiter limiter = new SoftLimiter();
72        limiter.init(44100, 147);
73        limiter.setMixMode(true);
74        limiter.setInput(0, in1);
75        limiter.setInput(1, in2);
76        limiter.setOutput(0, out1);
77        limiter.setOutput(1, out2);
78        limiter.processControlLogic();
79        limiter.processAudio();
80        limiter.processControlLogic();
81        limiter.processAudio();
82        // Limiter should delay audio by one buffer,
83        // and there should almost no different in output v.s. input
84        for (int i = 0; i < n1a.length; i++) {
85            if(Math.abs(out1a[i]-1) > 1.0)
86                throw new Exception("abs(output)>1");
87            if(Math.abs(out2a[i]-1) > 1.0)
88                throw new Exception("abs(output)>1");
89        }
90
91        synth.close();
92    }
93}
94