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  1. JDK
  2. JDK-5078180

REGRESSION: javax.sound wrongly sets frameSize wrong and throws exception

    Details

    • Type: Bug
    • Status: Closed
    • Priority: P3
    • Resolution: Duplicate
    • Affects Version/s: 5.0
    • Fix Version/s: None
    • Component/s: client-libs
    • Labels:

      Description



      Name: rmT116609 Date: 07/25/2004


      FULL PRODUCT VERSION :
      java version "1.5.0-beta2"
      Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0-beta2-b51)
      Java HotSpot(TM) Client VM (build 1.5.0-beta2-b51, mixed mode, sharing)

      ADDITIONAL OS VERSION INFORMATION :
      Microsoft Windows XP [Version 5.1.2600]

      EXTRA RELEVANT SYSTEM CONFIGURATION :
      Using on-board VIA soundchip.

      A DESCRIPTION OF THE PROBLEM :
      When I set the AudioFormat to a mono, 16 bit, 2 bytes per frame format, and I start streaming data to a SourceDataLine, I get the error:

      Exception in thread "main" java.lang.IllegalArgumentException: illegal request t
      o write non-integral number of frames (1026 bytes, frameSize = 4 bytes)
              at com.sun.media.sound.DirectAudioDevice$DirectDL.write(DirectAudioDevic
      e.java:687)

      I explicitly write 1026 bytes to show the problem (it's not a multiple of 4). The frameSize should be 2 bytes, not 4.

      STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
      Compile the provided source of 'SoundBug'.
      Run the program on JRE 1.4.2, it produces a noise sound.
      Run the program again on JRE 1.5.0-beta2-b51, the program crashes.

      EXPECTED VERSUS ACTUAL BEHAVIOR :
      EXPECTED -
      When the program runs on JRE 1.5.0-beta2, the result should be the same as when running on 1.4.2: It should produce a short noise sound.
      ACTUAL -
      When the program is started on 1.5.0, the program crashes with the Exception stated below.

      ERROR MESSAGES/STACK TRACES THAT OCCUR :
      Exception in thread "main" java.lang.IllegalArgumentException: illegal request t
      o write non-integral number of frames (1026 bytes, frameSize = 4 bytes)
              at com.sun.media.sound.DirectAudioDevice$DirectDL.write(DirectAudioDevice.java:687)
              at SoundBug.run(SoundBug.java:35)
              at SoundBug.main(SoundBug.java:50)

      REPRODUCIBILITY :
      This bug can be reproduced always.

      ---------- BEGIN SOURCE ----------
      import javax.sound.sampled.AudioFormat;
      import javax.sound.sampled.AudioSystem;
      import javax.sound.sampled.DataLine;
      import javax.sound.sampled.LineUnavailableException;
      import javax.sound.sampled.SourceDataLine;

      public class SoundBug {

      private static final int BUFFER_SIZE = 1026;

      private AudioFormat format;
      private SourceDataLine line;

      private byte[] buffer;

      private void run() {
      buffer = new byte[BUFFER_SIZE];

      format = new AudioFormat(AudioFormat.Encoding.PCM_SIGNED, 44100, 16, 1, 2, 44100, false);
      DataLine.Info info = new DataLine.Info(SourceDataLine.class, format);
      try {
      line = (SourceDataLine) AudioSystem.getLine(info);
      line.open();
      line.start();
      System.out.println("Sound initialized successfully.");
      } catch (LineUnavailableException lue) {
      System.err.println("Unavailable data line");
      }

      for (int i = 0; i < 100; i++) {
      // fill with noise
      for (int ii = 0; ii < buffer.length; ii++) {
      buffer[ii] = (byte) ((int) (Math.random() * 256) & 0xff);
      }
      line.write(buffer, 0, buffer.length);
      }

      line.drain();
      line.stop();
      line.close();

      // dunno why this is necessary, but the javasound seems to not let the
      // program end...
      System.exit(0);

      }

      public static void main(String[] args) {
      SoundBug bug = new SoundBug();
      bug.run();
      }
      }

      ---------- END SOURCE ----------

      CUSTOMER SUBMITTED WORKAROUND :
      Since I don't know why the frameSize is set to 4 (maybe javasound wrongly decided to use a stereo format, maybe not. No way to be sure), I wouldn't know for sure how to fill the buffers and I didn't find a workaround yet. In my own application I tried to force the buffer size to be a multiple of 4, but then the whole application froze...

      Release Regression From : 1.4.2_04
      The above release value was the last known release where this
      bug was known to work. Since then there has been a regression.

      (Incident Review ID: 286975)
      ======================================================================

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              • Assignee:
                fbomerssunw Florian Bomers (Inactive)
                Reporter:
                rmandalasunw Ranjith Mandala (Inactive)
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                • Created:
                  Updated:
                  Resolved:
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