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 import javax.sound.midi.MidiUnavailableException;
  28 import javax.sound.midi.Patch;
  29 import javax.sound.sampled.*;
  30 
  31 import com.sun.media.sound.*;
  32 
  33 public class ProcessAudio_replace_normal_mono {
  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(new AudioFormat(44100, 16, 1, true, false), null);
  50 
  51         SoftAudioBuffer in1 = new SoftAudioBuffer(250, synth.getFormat());
  52         SoftAudioBuffer out1 = new SoftAudioBuffer(250, synth.getFormat());
  53 
  54         float[] testdata1 = new float[in1.getSize()];
  55         float[] n1a = in1.array();
  56         float[] out1a = out1.array();
  57         for (int i = 0; i < n1a.length; i++) {
  58             testdata1[i] = (float)Math.sin(i*0.3)*0.9f;
  59             n1a[i] = testdata1[i];
  60             out1a[i] = 1;
  61         }
  62 
  63         SoftLimiter limiter = new SoftLimiter();
  64         limiter.init(44100, 147);
  65         limiter.setMixMode(false);
  66         limiter.setInput(0, in1);
  67         limiter.setOutput(0, out1);
  68         limiter.processControlLogic();
  69         limiter.processAudio();
  70         limiter.processControlLogic();
  71         limiter.processAudio();
  72         // Limiter should delay audio by one buffer,
  73         // and there should almost no different in output v.s. input
  74         for (int i = 0; i < n1a.length; i++) {
  75             if(Math.abs(out1a[i] - testdata1[i]) > 0.00001)
  76                 throw new Exception("input != output");
  77         }
  78 
  79         synth.close();
  80     }
  81 }