106 lines
3.8 KiB
Java
106 lines
3.8 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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* AU file format.
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*
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* @author Jan Borgersen
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*/
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final class AuFileFormat extends AudioFileFormat {
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// magic numbers
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static final int AU_SUN_MAGIC = 0x2e736e64;
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static final int AU_SUN_INV_MAGIC = 0x646e732e;
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static final int AU_DEC_MAGIC = 0x2e736400;
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static final int AU_DEC_INV_MAGIC = 0x0064732e;
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// encodings
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static final int AU_ULAW_8 = 1; /* 8-bit ISDN u-law */
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static final int AU_LINEAR_8 = 2; /* 8-bit linear PCM */
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static final int AU_LINEAR_16 = 3; /* 16-bit linear PCM */
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static final int AU_LINEAR_24 = 4; /* 24-bit linear PCM */
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static final int AU_LINEAR_32 = 5; /* 32-bit linear PCM */
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static final int AU_FLOAT = 6; /* 32-bit IEEE floating point */
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static final int AU_DOUBLE = 7; /* 64-bit IEEE floating point */
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static final int AU_ADPCM_G721 = 23; /* 4-bit CCITT g.721 ADPCM */
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static final int AU_ADPCM_G722 = 24; /* CCITT g.722 ADPCM */
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static final int AU_ADPCM_G723_3 = 25; /* CCITT g.723 3-bit ADPCM */
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static final int AU_ADPCM_G723_5 = 26; /* CCITT g.723 5-bit ADPCM */
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static final int AU_ALAW_8 = 27; /* 8-bit ISDN A-law */
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static final int AU_HEADERSIZE = 24;
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private int auType;
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AuFileFormat( AudioFileFormat aff ) {
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this( aff.getType(), aff.getByteLength(), aff.getFormat(), aff.getFrameLength() );
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}
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AuFileFormat(AudioFileFormat.Type type, int lengthInBytes, AudioFormat format, int lengthInFrames) {
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super(type,lengthInBytes,format,lengthInFrames);
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AudioFormat.Encoding encoding = format.getEncoding();
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auType = -1;
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if( AudioFormat.Encoding.ALAW.equals(encoding) ) {
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if( format.getSampleSizeInBits()==8 ) {
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auType = AU_ALAW_8;
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}
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} else if( AudioFormat.Encoding.ULAW.equals(encoding) ) {
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if( format.getSampleSizeInBits()==8 ) {
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auType = AU_ULAW_8;
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}
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} else if( AudioFormat.Encoding.PCM_SIGNED.equals(encoding) ) {
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if( format.getSampleSizeInBits()==8 ) {
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auType = AU_LINEAR_8;
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} else if( format.getSampleSizeInBits()==16 ) {
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auType = AU_LINEAR_16;
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} else if( format.getSampleSizeInBits()==24 ) {
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auType = AU_LINEAR_24;
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} else if( format.getSampleSizeInBits()==32 ) {
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auType = AU_LINEAR_32;
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}
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}
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}
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public int getAuType() {
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return auType;
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}
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}
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