| J. Duke | 319a3b9 | 2007-12-01 00:00:00 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 1999-2007 Sun Microsystems, Inc. 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. Sun designates this |
| 8 | * particular file as subject to the "Classpath" exception as provided |
| 9 | * by Sun 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| 22 | * CA 95054 USA or visit www.sun.com if you need additional information or |
| 23 | * have any questions. |
| 24 | */ |
| 25 | |
| 26 | package com.sun.media.sound; |
| 27 | |
| 28 | |
| 29 | import javax.sound.sampled.AudioFileFormat; |
| 30 | import javax.sound.sampled.AudioFormat; |
| 31 | |
| 32 | |
| 33 | /** |
| 34 | * AU file format. |
| 35 | * |
| 36 | * @author Jan Borgersen |
| 37 | */ |
| 38 | |
| 39 | class AuFileFormat extends AudioFileFormat { |
| 40 | |
| 41 | // magic numbers |
| 42 | static final int AU_SUN_MAGIC = 0x2e736e64; |
| 43 | static final int AU_SUN_INV_MAGIC = 0x646e732e; |
| 44 | static final int AU_DEC_MAGIC = 0x2e736400; |
| 45 | static final int AU_DEC_INV_MAGIC = 0x0064732e; |
| 46 | |
| 47 | // encodings |
| 48 | static final int AU_ULAW_8 = 1; /* 8-bit ISDN u-law */ |
| 49 | static final int AU_LINEAR_8 = 2; /* 8-bit linear PCM */ |
| 50 | static final int AU_LINEAR_16 = 3; /* 16-bit linear PCM */ |
| 51 | static final int AU_LINEAR_24 = 4; /* 24-bit linear PCM */ |
| 52 | static final int AU_LINEAR_32 = 5; /* 32-bit linear PCM */ |
| 53 | static final int AU_FLOAT = 6; /* 32-bit IEEE floating point */ |
| 54 | static final int AU_DOUBLE = 7; /* 64-bit IEEE floating point */ |
| 55 | static final int AU_ADPCM_G721 = 23; /* 4-bit CCITT g.721 ADPCM */ |
| 56 | static final int AU_ADPCM_G722 = 24; /* CCITT g.722 ADPCM */ |
| 57 | static final int AU_ADPCM_G723_3 = 25; /* CCITT g.723 3-bit ADPCM */ |
| 58 | static final int AU_ADPCM_G723_5 = 26; /* CCITT g.723 5-bit ADPCM */ |
| 59 | static final int AU_ALAW_8 = 27; /* 8-bit ISDN A-law */ |
| 60 | |
| 61 | static final int AU_HEADERSIZE = 24; |
| 62 | |
| 63 | int auType; |
| 64 | |
| 65 | AuFileFormat( AudioFileFormat aff ) { |
| 66 | |
| 67 | this( aff.getType(), aff.getByteLength(), aff.getFormat(), aff.getFrameLength() ); |
| 68 | } |
| 69 | |
| 70 | AuFileFormat(AudioFileFormat.Type type, int lengthInBytes, AudioFormat format, int lengthInFrames) { |
| 71 | |
| 72 | super(type,lengthInBytes,format,lengthInFrames); |
| 73 | |
| 74 | AudioFormat.Encoding encoding = format.getEncoding(); |
| 75 | |
| 76 | auType = -1; |
| 77 | |
| 78 | if( AudioFormat.Encoding.ALAW.equals(encoding) ) { |
| 79 | if( format.getSampleSizeInBits()==8 ) { |
| 80 | auType = AU_ALAW_8; |
| 81 | } |
| 82 | } else if( AudioFormat.Encoding.ULAW.equals(encoding) ) { |
| 83 | if( format.getSampleSizeInBits()==8 ) { |
| 84 | auType = AU_ULAW_8; |
| 85 | } |
| 86 | } else if( AudioFormat.Encoding.PCM_SIGNED.equals(encoding) ) { |
| 87 | if( format.getSampleSizeInBits()==8 ) { |
| 88 | auType = AU_LINEAR_8; |
| 89 | } else if( format.getSampleSizeInBits()==16 ) { |
| 90 | auType = AU_LINEAR_16; |
| 91 | } else if( format.getSampleSizeInBits()==24 ) { |
| 92 | auType = AU_LINEAR_24; |
| 93 | } else if( format.getSampleSizeInBits()==32 ) { |
| 94 | auType = AU_LINEAR_32; |
| 95 | } |
| 96 | } |
| 97 | |
| 98 | } |
| 99 | |
| 100 | public int getAuType() { |
| 101 | |
| 102 | return auType; |
| 103 | } |
| 104 | |
| 105 | } |