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diff --git a/libjava/classpath/gnu/javax/sound/sampled/gstreamer/io/GstAudioFileReader.java b/libjava/classpath/gnu/javax/sound/sampled/gstreamer/io/GstAudioFileReader.java
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+/*GstAudioFileReader -- GNU Classpath GStreamer AudioFileReader.
+ Copyright (C) 2007 Free Software Foundation, Inc.
+
+This file is part of GNU Classpath.
+
+GNU Classpath is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+GNU Classpath is distributed in the hope that it will be useful, but
+WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GNU Classpath; see the file COPYING.  If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library.  Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module.  An independent module is a module which is not derived from
+or based on this library.  If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so.  If you do not wish to do so, delete this
+exception statement from your version. */
+
+package gnu.javax.sound.sampled.gstreamer.io;
+
+import gnu.java.lang.CPStringBuilder;
+
+import gnu.javax.sound.sampled.gstreamer.GStreamerMixer;
+
+import java.io.BufferedInputStream;
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.net.URL;
+import javax.sound.sampled.AudioFileFormat;
+import javax.sound.sampled.AudioFormat;
+import javax.sound.sampled.AudioInputStream;
+import javax.sound.sampled.AudioSystem;
+import javax.sound.sampled.UnsupportedAudioFileException;
+import javax.sound.sampled.spi.AudioFileReader;
+
+/**
+ * An implementation of a general AudioFileReader. Uses GStreamer to
+ * parse and retrieve informations about the file passed as input.
+ *
+ * @author Mario Torre <neugens@limasoftware.net>
+ */
+public class GstAudioFileReader
+    extends AudioFileReader
+{
+  @Override
+  public AudioFileFormat getAudioFileFormat(File file)
+      throws UnsupportedAudioFileException, IOException
+  {
+    CPStringBuilder name = new CPStringBuilder(file.getName());
+    String _name = name.substring(name.lastIndexOf(".") + 1);
+
+    return getAudioFileFormat(
+               new BufferedInputStream(new FileInputStream(file)), _name);
+  }
+
+  @Override
+  public AudioFileFormat getAudioFileFormat(InputStream is)
+      throws UnsupportedAudioFileException, IOException
+  {
+    return getAudioFileFormat(is, null);
+  }
+
+  private AudioFileFormat getAudioFileFormat(InputStream is, String extension)
+    throws UnsupportedAudioFileException
+    {
+      AudioFormat format = null;
+      try
+        {
+          format = GstAudioFileReaderNativePeer.getAudioFormat(is);
+        }
+      catch (Exception e)
+        {
+          UnsupportedAudioFileException ex =
+            new UnsupportedAudioFileException("Unsupported encoding.");
+
+          ex.initCause(ex.getCause());
+          throw ex;
+        }
+
+      if (format == null)
+        throw new UnsupportedAudioFileException("Unsupported encoding.");
+
+      String name = format.getProperty(GStreamerMixer.GST_DECODER).toString();
+
+      if (extension == null)
+        {
+          extension =
+            format.getProperty(GStreamerMixer.GST_FILE_EXTENSION).toString();
+        }
+
+      AudioFileFormat.Type type =
+        new AudioFileFormat.Type(name, extension);
+
+      // TODO: we should calculate this in some way. We don't need it, but
+      // application may want to use this data.
+      return new AudioFileFormat(type, format, AudioSystem.NOT_SPECIFIED);
+    }
+
+  @Override
+  public AudioFileFormat getAudioFileFormat(URL url)
+      throws UnsupportedAudioFileException, IOException
+  {
+    return getAudioFileFormat(new BufferedInputStream(url.openStream()));
+  }
+
+  @Override
+  public AudioInputStream getAudioInputStream(File file)
+      throws UnsupportedAudioFileException, IOException
+  {
+    InputStream stream = new FileInputStream(file);
+    long length = file.length();
+
+    AudioFormat format = null;
+
+    try
+      {
+        format = GstAudioFileReaderNativePeer.getAudioFormat(file);
+      }
+    catch (Exception e)
+      {
+        UnsupportedAudioFileException ex =
+          new UnsupportedAudioFileException("Unsupported encoding.");
+
+        ex.initCause(ex.getCause());
+        throw ex;
+      }
+
+    // get the header size
+    if (format == null)
+      throw new UnsupportedAudioFileException("Unsupported encoding.");
+
+    return new AudioInputStream(stream, format, length);
+  }
+
+  @Override
+  public AudioInputStream getAudioInputStream(InputStream is)
+      throws UnsupportedAudioFileException, IOException
+  {
+    AudioFormat format = null;
+
+    try
+      {
+        format = GstAudioFileReaderNativePeer.getAudioFormat(is);
+      }
+    catch (Exception e)
+      {
+        // TODO Auto-generated catch block
+        e.printStackTrace();
+      }
+
+    // get the header size
+    if (format == null)
+      throw new UnsupportedAudioFileException("Unsupported encoding.");
+
+    return new AudioInputStream(is, format, AudioSystem.NOT_SPECIFIED);
+  }
+
+  @Override
+  public AudioInputStream getAudioInputStream(URL url)
+      throws UnsupportedAudioFileException, IOException
+  {
+    return getAudioInputStream(new BufferedInputStream(url.openStream()));
+  }
+}