1 /*
   2  * Copyright (c) 1999, 2015, 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.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 package com.sun.media.sound;
  27 
  28 import javax.sound.sampled.AudioFormat;
  29 import javax.sound.sampled.spi.FormatConversionProvider;
  30 
  31 /**
  32  * A codec can encode and/or decode audio data.  It provides an
  33  * AudioInputStream from which processed data may be read.
  34  * <p>
  35  * Its input format represents the format of the incoming
  36  * audio data, or the format of the data in the underlying stream.
  37  * <p>
  38  * Its output format represents the format of the processed, outgoing
  39  * audio data.  This is the format of the data which may be read from
  40  * the filtered stream.
  41  *
  42  * @author Kara Kytle
  43  */
  44 abstract class SunCodec extends FormatConversionProvider {
  45 
  46     private final AudioFormat.Encoding[] inputEncodings;
  47     private final AudioFormat.Encoding[] outputEncodings;
  48 
  49     /**
  50      * Constructs a new codec object.
  51      */
  52     SunCodec(final AudioFormat.Encoding[] inputEncodings,
  53              final AudioFormat.Encoding[] outputEncodings) {
  54         this.inputEncodings = inputEncodings;
  55         this.outputEncodings = outputEncodings;
  56     }
  57 
  58     @Override
  59     public final AudioFormat.Encoding[] getSourceEncodings() {
  60         AudioFormat.Encoding[] encodings = new AudioFormat.Encoding[inputEncodings.length];
  61         System.arraycopy(inputEncodings, 0, encodings, 0, inputEncodings.length);
  62         return encodings;
  63     }
  64 
  65     @Override
  66     public final AudioFormat.Encoding[] getTargetEncodings() {
  67         AudioFormat.Encoding[] encodings = new AudioFormat.Encoding[outputEncodings.length];
  68         System.arraycopy(outputEncodings, 0, encodings, 0, outputEncodings.length);
  69         return encodings;
  70     }
  71 }