Java example source code file (AiffFileFormat.java)

This example Java source code file (AiffFileFormat.java) is included in the alvinalexander.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Learn more about this Java project at its project page.

Java - Java tags/keywords

ace, aifc_ace2, aifc_ace8, aifc_mac3, aifc_mac6, aifc_magic, aifc_pcm, aiff_magic2, aifffileformat, audiofileformat, fver_magic, ima, itu, mace

The AiffFileFormat.java Java example source code

/*
 * Copyright (c) 1999, 2013, 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 com.sun.media.sound;

import javax.sound.sampled.AudioFileFormat;
import javax.sound.sampled.AudioFormat;


/**
 * AIFF file format.
 *
 * @author Jan Borgersen
 */

final class AiffFileFormat extends AudioFileFormat {

    static final int AIFF_MAGIC         = 1179603533;

    // for writing AIFF
    static final int AIFC_MAGIC                 = 0x41494643;   // 'AIFC'
    static final int AIFF_MAGIC2                = 0x41494646;   // 'AIFF'
    static final int FVER_MAGIC                 = 0x46564552;   // 'FVER'
    static final int FVER_TIMESTAMP             = 0xA2805140;   // timestamp of last AIFF-C update
    static final int COMM_MAGIC                 = 0x434f4d4d;   // 'COMM'
    static final int SSND_MAGIC                 = 0x53534e44;   // 'SSND'

    // compression codes
    static final int AIFC_PCM                   = 0x4e4f4e45;   // 'NONE' PCM
    static final int AIFC_ACE2                  = 0x41434532;   // 'ACE2' ACE 2:1 compression
    static final int AIFC_ACE8                  = 0x41434538;   // 'ACE8' ACE 8:3 compression
    static final int AIFC_MAC3                  = 0x4d414333;   // 'MAC3' MACE 3:1 compression
    static final int AIFC_MAC6                  = 0x4d414336;   // 'MAC6' MACE 6:1 compression
    static final int AIFC_ULAW                  = 0x756c6177;   // 'ulaw' ITU G.711 u-Law
    static final int AIFC_IMA4                  = 0x696d6134;   // 'ima4' IMA ADPCM

    // $$fb static approach not good, but needed for estimation
    static final int AIFF_HEADERSIZE    = 54;

    //$$fb 2001-07-13: added management of header size in this class

    /** header size in bytes */
    private final int headerSize=AIFF_HEADERSIZE;

    /** comm chunk size in bytes, inclusive magic and length field */
    private final int commChunkSize=26;

    /** FVER chunk size in bytes, inclusive magic and length field */
    private final int fverChunkSize=0;

    AiffFileFormat( AudioFileFormat aff ) {
        this( aff.getType(), aff.getByteLength(), aff.getFormat(), aff.getFrameLength() );
    }

    AiffFileFormat(Type type, int byteLength, AudioFormat format, int frameLength) {
        super(type, byteLength, format, frameLength);
    }

    int getHeaderSize() {
        return headerSize;
    }

    int getCommChunkSize() {
        return commChunkSize;
    }

    int getFverChunkSize() {
        return fverChunkSize;
    }

    int getSsndChunkOffset() {
        return getHeaderSize()-16;
    }

}