1 /*
   2  * Copyright (c) 2007, 2013, 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_mix {
  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)*0.9f;
  64             testdata2[i] = (float)Math.sin(i*0.4)*0.9f;
  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] - testdata1[i] - 1) > 0.00001)
  86                 throw new Exception("input != output");
  87             if(Math.abs(out2a[i] - testdata2[i] - 1) > 0.00001)
  88                 throw new Exception("input != output");
  89         }
  90 
  91         synth.close();
  92 
  93     }
  94 }