ProcessAudio_replace_mix_mono_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
27
28import javax.sound.midi.MidiUnavailableException;
29import javax.sound.midi.Patch;
30import javax.sound.sampled.*;
31
32import com.sun.media.sound.*;
33
34public class ProcessAudio_replace_mix_mono_overdrive {
35
36    private static void assertEquals(Object a, Object b) throws Exception
37    {
38        if(!a.equals(b))
39            throw new RuntimeException("assertEquals fails!");
40    }
41
42    private static void assertTrue(boolean value) throws Exception
43    {
44        if(!value)
45            throw new RuntimeException("assertTrue fails!");
46    }
47
48    public static void main(String[] args) throws Exception {
49        SoftSynthesizer synth = new SoftSynthesizer();
50        synth.openStream(new AudioFormat(44100, 16, 1, true, false), null);
51
52        SoftAudioBuffer in1 = new SoftAudioBuffer(250, synth.getFormat());
53        SoftAudioBuffer out1 = new SoftAudioBuffer(250, synth.getFormat());
54
55        float[] testdata1 = new float[in1.getSize()];
56        float[] n1a = in1.array();
57        float[] out1a = out1.array();
58        for (int i = 0; i < n1a.length; i++) {
59            testdata1[i] = (float)Math.sin(i*0.3)*2.5f;
60            n1a[i] = testdata1[i];
61            out1a[i] = 1;
62        }
63
64        SoftLimiter limiter = new SoftLimiter();
65        limiter.init(44100, 147);
66        limiter.setMixMode(true);
67        limiter.setInput(0, in1);
68        limiter.setOutput(0, out1);
69        limiter.processControlLogic();
70        limiter.processAudio();
71        limiter.processControlLogic();
72        limiter.processAudio();
73        // Limiter should delay audio by one buffer,
74        // and there should almost no different in output v.s. input
75        for (int i = 0; i < n1a.length; i++) {
76            if(Math.abs(out1a[i]-1) > 1.0)
77                throw new Exception("abs(output)>1");
78        }
79
80        synth.close();
81    }
82}
83