| /* |
| * Copyright (c) 1999, 2002, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle in the LICENSE file that accompanied this code. |
| * |
| * This code 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 |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| package sun.audio; |
| |
| import java.io.*; |
| import javax.sound.sampled.*; |
| |
| |
| /** |
| * A clip of audio data. This data can be used to construct an |
| * AudioDataStream, which can be played. <p> |
| * |
| * @author Arthur van Hoff |
| * @author Kara Kytle |
| * @see AudioDataStream |
| * @see AudioPlayer |
| */ |
| |
| /* |
| * the idea here is that the AudioData object encapsulates the |
| * data you need to play an audio clip based on a defined set |
| * of data. to do this, you require the audio data (a byte |
| * array rather than an arbitrary input stream) and a format |
| * object. |
| */ |
| |
| |
| public class AudioData { |
| |
| private static final AudioFormat DEFAULT_FORMAT = |
| new AudioFormat(AudioFormat.Encoding.ULAW, |
| 8000, // sample rate |
| 8, // sample size in bits |
| 1, // channels |
| 1, // frame size in bytes |
| 8000, // frame rate |
| true ); // bigendian (irrelevant for 8-bit data) |
| |
| AudioFormat format; // carry forth the format array amusement |
| byte buffer[]; |
| |
| /** |
| * Constructor |
| */ |
| public AudioData(byte buffer[]) { |
| |
| this.buffer = buffer; |
| // if we cannot extract valid format information, we resort to assuming the data will be 8k mono u-law |
| // in order to provide maximal backwards compatibility.... |
| this.format = DEFAULT_FORMAT; |
| |
| // okay, we need to extract the format and the byte buffer of data |
| try { |
| AudioInputStream ais = AudioSystem.getAudioInputStream(new ByteArrayInputStream(buffer)); |
| this.format = ais.getFormat(); |
| ais.close(); |
| // $$fb 2002-10-27: buffer contains the file header now! |
| } catch (IOException e) { |
| // use default format |
| } catch (UnsupportedAudioFileException e1 ) { |
| // use default format |
| } |
| } |
| |
| |
| /** |
| * Non-public constructor; this is the one we use in ADS and CADS |
| * constructors. |
| */ |
| AudioData(AudioFormat format, byte[] buffer) { |
| |
| this.format = format; |
| this.buffer = buffer; |
| } |
| } |