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.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 /* @test
  27    @summary Test SoftLimiter processAudio method */
  28 
  29 import javax.sound.midi.MidiUnavailableException;
  30 import javax.sound.midi.Patch;
  31 import javax.sound.sampled.*;
  32 
  33 import com.sun.media.sound.*;
  34 
  35 public class ProcessAudio_replace_normal_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(false);
  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]) > 0.00001)
  78                 throw new Exception("input != output");
  79         }
  80 
  81         synth.close();
  82     }
  83 }