I'm using JLayer to decode an MP3, and store it as PCM Data. However, no matter what MP3 file I use, I always get an ArrayIndexOutOfBoudnsException with the index 443. I have heard that this only happens with certain MP3s, but it is happening on every frame with every MP3 I play Here is my code:
private short[] getPCM(Header frameHeader, Bitstream bs) {
short[] pcm = null;
try {
Decoder d = new Decoder();
SampleBuffer buffer = (SampleBuffer) d.decodeFrame(frameHeader, bs);
pcm = buffer.getBuffer();
} catch (ArrayIndexOutOfBoundsException | DecoderException e) {
System.err.println("JLayer, stap it");
}
return pcm;
}
And the method is called with this code:
while ((frameHeader = bs.readFrame()) != null) {
short[] pcm = getPCM(frameHeader, bs);
for(short i : pcm){
try {
os.write(i);
} catch (IOException e) {
e.printStackTrace();
}
}
}
Stack Trace:
java.lang.ArrayIndexOutOfBoundsException: 433
at javazoom.jl.decoder.Bitstream.get_bits(Unknown Source)
at javazoom.jl.decoder.LayerIIIDecoder.decode(Unknown Source)
at javazoom.jl.decoder.LayerIIIDecoder.decodeFrame(Unknown Source)
at javazoom.jl.decoder.Decoder.decodeFrame(Unknown Source)
at com.dentonposs.Canvas.getPCM(Canvas.java:70)
at com.dentonposs.Canvas.paintComponent(Canvas.java:48)
at javax.swing.JComponent.paint(Unknown Source)
at javax.swing.JComponent.paintChildren(Unknown Source)
at javax.swing.JComponent.paint(Unknown Source)
at javax.swing.JLayeredPane.paint(Unknown Source)
at javax.swing.JComponent.paintChildren(Unknown Source)
at javax.swing.JComponent.paintToOffscreen(Unknown Source)
at javax.swing.RepaintManager$PaintManager.paintDoubleBuffered(Unknown Source)
at javax.swing.RepaintManager$PaintManager.paint(Unknown Source)
at javax.swing.RepaintManager.paint(Unknown Source)
at javax.swing.JComponent.paint(Unknown Source)
at java.awt.GraphicsCallback$PaintCallback.run(Unknown Source)
at sun.awt.SunGraphicsCallback.runOneComponent(Unknown Source)
at sun.awt.SunGraphicsCallback.runComponents(Unknown Source)
at java.awt.Container.paint(Unknown Source)
at java.awt.Window.paint(Unknown Source)
at javax.swing.RepaintManager.paintDirtyRegions(Unknown Source)
at javax.swing.RepaintManager.paintDirtyRegions(Unknown Source)
at javax.swing.RepaintManager.prePaintDirtyRegions(Unknown Source)
at javax.swing.RepaintManager.access$700(Unknown Source)
at javax.swing.RepaintManager$ProcessingRunnable.run(Unknown Source)
at java.awt.event.InvocationEvent.dispatch(Unknown Source)
at java.awt.EventQueue.dispatchEventImpl(Unknown Source)
at java.awt.EventQueue.access$000(Unknown Source)
at java.awt.EventQueue$3.run(Unknown Source)
at java.awt.EventQueue$3.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(Unknown Source)
at java.awt.EventQueue.dispatchEvent(Unknown Source)
at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.run(Unknown Source)
You need to call Bitstream.closeFrame()
between each call to readFrame()
- so
while ((frameHeader = bs.readFrame()) != null) {
short[] pcm = getPCM(frameHeader, bs);
bs.closeFrame();
.. more ..