ProcessAudio_replace_mix_mono_overdrive.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
29
30import javax.sound.midi.MidiUnavailableException;
31import javax.sound.midi.Patch;
32import javax.sound.sampled.*;
33
34import com.sun.media.sound.*;
35
36public class ProcessAudio_replace_mix_mono_overdrive {
37
38    private static void assertEquals(Object a, Object b) throws Exception
39    {
40        if(!a.equals(b))
41            throw new RuntimeException("assertEquals fails!");
42    }
43
44    private static void assertTrue(boolean value) throws Exception
45    {
46        if(!value)
47            throw new RuntimeException("assertTrue fails!");
48    }
49
50    public static void main(String[] args) throws Exception {
51        SoftSynthesizer synth = new SoftSynthesizer();
52        synth.openStream(new AudioFormat(44100, 16, 1, true, false), null);
53
54        SoftAudioBuffer in1 = new SoftAudioBuffer(250, synth.getFormat());
55        SoftAudioBuffer out1 = new SoftAudioBuffer(250, synth.getFormat());
56
57        float[] testdata1 = new float[in1.getSize()];
58        float[] n1a = in1.array();
59        float[] out1a = out1.array();
60        for (int i = 0; i < n1a.length; i++) {
61            testdata1[i] = (float)Math.sin(i*0.3)*2.5f;
62            n1a[i] = testdata1[i];
63            out1a[i] = 1;
64        }
65
66        SoftLimiter limiter = new SoftLimiter();
67        limiter.init(44100, 147);
68        limiter.setMixMode(true);
69        limiter.setInput(0, in1);
70        limiter.setOutput(0, out1);
71        limiter.processControlLogic();
72        limiter.processAudio();
73        limiter.processControlLogic();
74        limiter.processAudio();
75        // Limiter should delay audio by one buffer,
76        // and there should almost no different in output v.s. input
77        for (int i = 0; i < n1a.length; i++) {
78            if(Math.abs(out1a[i]-1) > 1.0)
79                throw new Exception("abs(output)>1");
80        }
81
82        synth.close();
83    }
84}
85