1 /*
   2  * Copyright (c) 2006, 2016, 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 import java.io.ByteArrayInputStream;
  25 import java.io.ByteArrayOutputStream;
  26 import java.io.InputStream;
  27 
  28 import javax.sound.sampled.AudioFileFormat;
  29 import javax.sound.sampled.AudioFormat;
  30 import javax.sound.sampled.AudioInputStream;
  31 import javax.sound.sampled.AudioSystem;
  32 
  33 /**
  34  * @test
  35  * @bug 5001952
  36  * @summary Writing WAVE with big endian data produces corrupt file. WAVE should
  37  *          always write signed 16-bit, little endian, regardless of the
  38  *          endianness of the input data.
  39  */
  40 public class WaveBigEndian {
  41 
  42     static boolean failed = false;
  43 
  44     public static byte[] writeDataAndGetAIS(boolean bigEndian) throws Exception {
  45         if (bigEndian) {
  46                 out("Create WAVE file from big endian data...");
  47         } else {
  48                 out("Create WAVE file from little endian data...");
  49         }
  50         byte[] data = new byte[3000];
  51         for (int i = 0; i < data.length; i+=2) {
  52                 if (bigEndian) {
  53                         data[i] = (byte) i;
  54                         data[i+1] = (byte) (i+1);
  55                 } else {
  56                         data[i] = (byte) (i+1);
  57                         data[i+1] = (byte) i;
  58                 }
  59         }
  60         AudioFormat format = new AudioFormat(44100.0f, 16, 1, true, bigEndian);
  61         InputStream is = new ByteArrayInputStream(data);
  62         AudioInputStream ais = new AudioInputStream(is, format, data.length);
  63         ByteArrayOutputStream os = new ByteArrayOutputStream();
  64         int written = AudioSystem.write(ais, AudioFileFormat.Type.WAVE, os);
  65         data = os.toByteArray();
  66         out("Wrote "+written+" bytes, got "+data.length+" bytes in written file.");
  67         is = new ByteArrayInputStream(data);
  68         ais = AudioSystem.getAudioInputStream(is);
  69         out("Got AIS with length = "+ais.getFrameLength()+" frames.");
  70         return data;
  71     }
  72 
  73 
  74     public static void main(String args[]) throws Exception {
  75         byte[] data1 = writeDataAndGetAIS(false);
  76         byte[] data2 = writeDataAndGetAIS(true);
  77 
  78         if (data1.length != data2.length) {
  79                 out("# data1.length != data2.length!");
  80                 failed = true;
  81         } else {
  82                 for (int i = 0 ; i < data1.length; i++) {
  83                         if (data1[i] != data2[i]) {
  84                                 out("# At index "+i+": le="+(data1[i] & 0xFF)+" be="+(data2[i] & 0xFF)+" !");
  85                                 failed = true;
  86                         }
  87                 }
  88         }
  89 
  90         if (failed) throw new Exception("Test FAILED!");
  91         out("Files are identical.");
  92         out("test passed");
  93     }
  94 
  95     static void out(String s) {
  96         System.out.println(s);
  97     }
  98 }