1 /*
   2  * Copyright (c) 2004, 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 javax.sound.sampled.AudioFormat;
  25 import javax.sound.sampled.AudioSystem;
  26 import javax.sound.sampled.DataLine;
  27 import javax.sound.sampled.Line;
  28 import javax.sound.sampled.Mixer;
  29 
  30 /**
  31  * @test
  32  * @bug 5013897
  33  * @summary Verify that plughw: provides mono and 8-bit lines
  34  */
  35 public class PlugHwMonoAnd8bitAvailable {
  36     static int failed = 0;
  37     static int testedFormats = 0;
  38 
  39     public static void main(String[] args) throws Exception {
  40         out("5013897: Verify that plughw: provides mono and 8-bit lines");
  41 
  42         Mixer.Info[] aInfos = AudioSystem.getMixerInfo();
  43         for (int i = 0; i < aInfos.length; i++) {
  44             try {
  45                 Mixer mixer = AudioSystem.getMixer(aInfos[i]);
  46                 out("Mixer "+aInfos[i]);
  47                 if (aInfos[i].getName().contains("plughw")) {
  48                     checkLines(mixer, mixer.getSourceLineInfo());
  49                     checkLines(mixer, mixer.getTargetLineInfo());
  50                 } else {
  51                     out("  -> not plughw, ignored.");
  52                 }
  53             } catch (Exception e) {
  54                 out("Unexpected exception when getting a mixer: "+e);
  55             }
  56         }
  57         if (testedFormats == 0) {
  58             out("[No appropriate lines available] - cannot exercise this test.");
  59         } else {
  60             if (failed>0) {
  61                 throw new Exception("Test FAILED!");
  62             }
  63             out("Successfully verified "+testedFormats+" formats.");
  64             out("Test passed");
  65         }
  66     }
  67 
  68     public static void checkLines(Mixer mixer, Line.Info[] infos) {
  69         for (int i = 0; i<infos.length; i++) {
  70                 try {
  71                         System.out.println(" Line "+infos[i]+" (max. "+mixer.getMaxLines(infos[i])+" simultaneously): ");
  72                         if (infos[i] instanceof DataLine.Info) {
  73                                 DataLine.Info info = (DataLine.Info) infos[i];
  74                                 int thisTestedFormats = testedFormats;
  75                                 int thisFailed = failed;
  76                                 AudioFormat[] formats = info.getFormats();
  77                                 for (int f = 0; f < formats.length; f++) {
  78                                         if (formats[f].getEncoding().equals(AudioFormat.Encoding.PCM_SIGNED)
  79                                         || formats[f].getEncoding().equals(AudioFormat.Encoding.PCM_UNSIGNED)) {
  80                                                 try {
  81                                                         if (formats[f].getSampleSizeInBits() > 16) {
  82                                                                 // if a bit size larger than 16 is available, also 16-bit must be there
  83                                                                 checkFormat(formats, getOtherBits(formats[f], 16));
  84                                                         } else
  85                                                         if (formats[f].getSampleSizeInBits() > 8) {
  86                                                                 // if a bit size larger than 8 is available, also 8-bit must be there
  87                                                                 checkFormat(formats, getOtherBits(formats[f], 8));
  88                                                         }
  89                                                         if (formats[f].getChannels() > 2) {
  90                                                                 // if more than 2 channels, also 2 channels must be there
  91                                                                 checkFormat(formats, getOtherChannels(formats[f], 2));
  92                                                         } else
  93                                                         if (formats[f].getChannels() > 1) {
  94                                                                 // if more than 1 channel, also 1 channel must be there
  95                                                                 checkFormat(formats, getOtherChannels(formats[f], 1));
  96                                                         }
  97                                                 } catch (Exception e1) {
  98                                                         out("  Unexpected exception when getting a format: "+e1);
  99                                                 }
 100                                         }
 101                                 }
 102                                 if (testedFormats - thisTestedFormats == 0) {
 103                                         out(" -->could not test any formats");
 104                                 } else if (failed - thisFailed == 0) {
 105                                         out(" -->"+(testedFormats - thisTestedFormats)+" formats tested OK");
 106                                 }
 107 
 108                         } else {
 109                                 out("  --> not a DataLine");
 110                         }
 111                 } catch (Exception e) {
 112                         out(" Unexpected exception when getting a line: "+e);
 113                 }
 114         }
 115     }
 116 
 117     public static void checkFormat(AudioFormat[] formats, AudioFormat format) {
 118         testedFormats++;
 119         for (int i = 0; i < formats.length; i++) {
 120             if (formats[i].matches(format)) {
 121                 return;
 122             }
 123         }
 124         out("  ## expected this format: "+format
 125             +" ("+format.getChannels()+" channels, "
 126             +"frameSize="+format.getFrameSize()+", "
 127             +(format.isBigEndian()?"big endian":"little endian")
 128             +")");
 129         failed++;
 130     }
 131 
 132     // only works for PCM encodings
 133     public static AudioFormat getOtherBits(AudioFormat format, int newBits) {
 134         boolean isSigned = format.getEncoding().equals(AudioFormat.Encoding.PCM_SIGNED);
 135         return new AudioFormat(format.getSampleRate(),
 136                                newBits,
 137                                format.getChannels(),
 138                                isSigned,
 139                                (newBits>8)?format.isBigEndian():false);
 140     }
 141 
 142     // only works for PCM encodings
 143     public static AudioFormat getOtherChannels(AudioFormat format, int newChannels) {
 144         int newFrameSize;
 145         if (newChannels <= 0 || format.getChannels() <= 0 || format.getFrameSize() <= 0) {
 146             newFrameSize = -1;
 147         } else {
 148             newFrameSize = format.getFrameSize() / format.getChannels() * newChannels;
 149         }
 150         return new AudioFormat(format.getEncoding(),
 151                                format.getSampleRate(),
 152                                format.getSampleSizeInBits(),
 153                                newChannels,
 154                                newFrameSize,
 155                                format.getFrameRate(),
 156                                format.isBigEndian());
 157     }
 158 
 159 
 160     static void out(String s) {
 161         System.out.println(s); System.out.flush();
 162     }
 163 }