1/*
2 * Copyright (c) 1999, 2016, 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
26package com.sun.media.sound;
27
28import javax.sound.sampled.AudioFormat;
29
30/**
31 * AIFF file format.
32 *
33 * @author Jan Borgersen
34 */
35final class AiffFileFormat extends StandardFileFormat {
36
37    static final int AIFF_MAGIC         = 1179603533;
38
39    // for writing AIFF
40    static final int AIFC_MAGIC                 = 0x41494643;   // 'AIFC'
41    static final int AIFF_MAGIC2                = 0x41494646;   // 'AIFF'
42    static final int FVER_MAGIC                 = 0x46564552;   // 'FVER'
43    static final int FVER_TIMESTAMP             = 0xA2805140;   // timestamp of last AIFF-C update
44    static final int COMM_MAGIC                 = 0x434f4d4d;   // 'COMM'
45    static final int SSND_MAGIC                 = 0x53534e44;   // 'SSND'
46
47    // compression codes
48    static final int AIFC_PCM                   = 0x4e4f4e45;   // 'NONE' PCM
49    static final int AIFC_ACE2                  = 0x41434532;   // 'ACE2' ACE 2:1 compression
50    static final int AIFC_ACE8                  = 0x41434538;   // 'ACE8' ACE 8:3 compression
51    static final int AIFC_MAC3                  = 0x4d414333;   // 'MAC3' MACE 3:1 compression
52    static final int AIFC_MAC6                  = 0x4d414336;   // 'MAC6' MACE 6:1 compression
53    static final int AIFC_ULAW                  = 0x756c6177;   // 'ulaw' ITU G.711 u-Law
54    static final int AIFC_IMA4                  = 0x696d6134;   // 'ima4' IMA ADPCM
55
56    // $$fb static approach not good, but needed for estimation
57    static final int AIFF_HEADERSIZE    = 54;
58
59    //$$fb 2001-07-13: added management of header size in this class
60
61    /** header size in bytes */
62    private final int headerSize=AIFF_HEADERSIZE;
63
64    /** comm chunk size in bytes, inclusive magic and length field */
65    private final int commChunkSize=26;
66
67    /** FVER chunk size in bytes, inclusive magic and length field */
68    private final int fverChunkSize=0;
69
70    AiffFileFormat(final Type type, final long byteLength,
71                   final AudioFormat format, final long frameLength) {
72        super(type, byteLength, format, frameLength);
73    }
74
75    int getHeaderSize() {
76        return headerSize;
77    }
78
79    int getCommChunkSize() {
80        return commChunkSize;
81    }
82
83    int getFverChunkSize() {
84        return fverChunkSize;
85    }
86
87    int getSsndChunkOffset() {
88        return getHeaderSize()-16;
89    }
90}
91