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 }