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 AudioFloatInputStream reset method */
  28 
  29 import java.io.*;
  30 
  31 import javax.sound.sampled.*;
  32 
  33 import com.sun.media.sound.*;
  34 
  35 public class Reset {
  36 
  37     static float[] test_float_array;
  38     static byte[] test_byte_array;
  39     static AudioFormat format = new AudioFormat(44100, 16, 1, true, false);
  40 
  41     static AudioFloatInputStream getStream1()
  42     {
  43         return AudioFloatInputStream.getInputStream(format, test_byte_array, 0, test_byte_array.length);
  44     }
  45 
  46     static AudioFloatInputStream getStream2()
  47     {
  48         AudioInputStream strm = new AudioInputStream(new ByteArrayInputStream(test_byte_array), format, 1024);
  49         return AudioFloatInputStream.getInputStream(strm);
  50     }
  51 
  52     static void setUp() throws Exception {
  53         test_float_array = new float[1024];
  54         test_byte_array = new byte[1024*format.getFrameSize()];
  55         for (int i = 0; i < 1024; i++) {
  56             double ii = i / 1024.0;
  57             ii = ii * ii;
  58             test_float_array[i] = (float)Math.sin(10*ii*2*Math.PI);
  59             test_float_array[i] += (float)Math.sin(1.731 + 2*ii*2*Math.PI);
  60             test_float_array[i] += (float)Math.sin(0.231 + 6.3*ii*2*Math.PI);
  61             test_float_array[i] *= 0.3;
  62         }
  63         AudioFloatConverter.getConverter(format).toByteArray(test_float_array, test_byte_array);
  64     }
  65 
  66     public static void main(String[] args) throws Exception {
  67         setUp();
  68 
  69         for (int i = 0; i < 2; i++) {
  70             AudioFloatInputStream stream = null;
  71             if(i == 0) stream = getStream1();
  72             if(i == 1) stream = getStream2();
  73             float[] buff = new float[512];
  74             float[] buff2 = new float[512];
  75             stream.read(buff);
  76             stream.mark(512);
  77             stream.read(buff);
  78             stream.reset();
  79             stream.read(buff2);
  80             for (int j = 0; j < buff2.length; j++)
  81                 if(!(Math.abs(buff[j] - buff2[j]) < 0.0001))
  82                     throw new RuntimeException("Incorrect data in buffer.");
  83 
  84         }
  85     }
  86 
  87 }