98 lines
3.6 KiB
Java
98 lines
3.6 KiB
Java
/*
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* Copyright (c) 1999, 2013, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation. Oracle designates this
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* particular file as subject to the "Classpath" exception as provided
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* by Oracle in the LICENSE file that accompanied this code.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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package com.sun.media.sound;
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import javax.sound.sampled.AudioFileFormat;
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import javax.sound.sampled.AudioFormat;
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/**
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* AIFF file format.
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*
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* @author Jan Borgersen
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*/
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final class AiffFileFormat extends AudioFileFormat {
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static final int AIFF_MAGIC = 1179603533;
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// for writing AIFF
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static final int AIFC_MAGIC = 0x41494643; // 'AIFC'
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static final int AIFF_MAGIC2 = 0x41494646; // 'AIFF'
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static final int FVER_MAGIC = 0x46564552; // 'FVER'
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static final int FVER_TIMESTAMP = 0xA2805140; // timestamp of last AIFF-C update
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static final int COMM_MAGIC = 0x434f4d4d; // 'COMM'
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static final int SSND_MAGIC = 0x53534e44; // 'SSND'
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// compression codes
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static final int AIFC_PCM = 0x4e4f4e45; // 'NONE' PCM
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static final int AIFC_ACE2 = 0x41434532; // 'ACE2' ACE 2:1 compression
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static final int AIFC_ACE8 = 0x41434538; // 'ACE8' ACE 8:3 compression
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static final int AIFC_MAC3 = 0x4d414333; // 'MAC3' MACE 3:1 compression
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static final int AIFC_MAC6 = 0x4d414336; // 'MAC6' MACE 6:1 compression
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static final int AIFC_ULAW = 0x756c6177; // 'ulaw' ITU G.711 u-Law
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static final int AIFC_IMA4 = 0x696d6134; // 'ima4' IMA ADPCM
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// $$fb static approach not good, but needed for estimation
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static final int AIFF_HEADERSIZE = 54;
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//$$fb 2001-07-13: added management of header size in this class
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/** header size in bytes */
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private final int headerSize=AIFF_HEADERSIZE;
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/** comm chunk size in bytes, inclusive magic and length field */
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private final int commChunkSize=26;
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/** FVER chunk size in bytes, inclusive magic and length field */
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private final int fverChunkSize=0;
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AiffFileFormat( AudioFileFormat aff ) {
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this( aff.getType(), aff.getByteLength(), aff.getFormat(), aff.getFrameLength() );
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}
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AiffFileFormat(Type type, int byteLength, AudioFormat format, int frameLength) {
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super(type, byteLength, format, frameLength);
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}
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int getHeaderSize() {
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return headerSize;
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}
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int getCommChunkSize() {
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return commChunkSize;
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}
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int getFverChunkSize() {
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return fverChunkSize;
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}
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int getSsndChunkOffset() {
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return getHeaderSize()-16;
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}
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}
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