1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
|
/**
* Copyright (c) 2013 JogAmp Community. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* -Redistribution of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* -Redistribution in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* Neither the name of Sun Microsystems, Inc. or the names of contributors may
* be used to endorse or promote products derived from this software without
* specific prior written permission.
*
* This software is provided "AS IS," without a warranty of any kind.
* ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES, INCLUDING
* ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR
* NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN MICROSYSTEMS, INC. ("SUN") AND ITS
* LICENSORS SHALL NOT BE LIABLE FOR ANY DAMAGES SUFFERED BY LICENSEE AS A
* RESULT OF USING, MODIFYING OR DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES.
* IN NO EVENT WILL SUN OR ITS LICENSORS BE LIABLE FOR ANY LOST REVENUE, PROFIT
* OR DATA, OR FOR DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL, INCIDENTAL OR
* PUNITIVE DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY,
* ARISING OUT OF THE USE OF OR INABILITY TO USE THIS SOFTWARE, EVEN IF SUN HAS
* BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
*
* You acknowledge that this software is not designed or intended for use in the
* design, construction, operation or maintenance of any nuclear facility.
*
* Note: Rewrite started by Julien Goussej 2013-03-27 commit 6292ed9712b17f849f22221aea9d586c3a363c09
*/
package com.jogamp.openal.util;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.nio.ByteOrder;
import com.jogamp.common.util.Bitstream;
import com.jogamp.openal.ALException;
/**
* A Loader utility for (.wav) files. Creates a WAVData object containing the
* data used by the AL.alBufferData method.
*/
public class WAVLoader {
/**
* This method loads a (.wav) file into a WAVData object.
*
* @param filename The name of the (.wav) file
*
* @return a WAVData object containing the audio data
*
* @throws ALException if the format of the audio if not supported.
* @throws IOException If the file can no be found or some other IO error
* occurs
*/
public static WAVData loadFromFile(final String filename) throws ALException, IOException {
final File soundFile = new File(filename);
final InputStream is = new FileInputStream(soundFile);
return loadFromStreamImpl(is);
}
/**
* This method loads a (.wav) file into a WAVData object.
*
* @param stream An InputStream for the .WAV stream.
*
* @return a WAVData object containing the audio data
*
* @throws ALException if the format of the audio if not supported.
* @throws IOException If the file can no be found or some other IO error
* occurs
*/
public static WAVData loadFromStream(final InputStream stream) throws ALException, IOException {
return loadFromStreamImpl(stream);
}
private static final int RIFF = 0x52494646;
private static final int RIFX = 0x52494658;
private static final int WAVE = 0x57415645;
private static final int FACT = 0x66616374;
private static final int FMT = 0x666D7420;
private static final int DATA = 0x64617461;
private static WAVData loadFromStreamImpl(final InputStream aIn) throws ALException, IOException {
/**
* references:
* http://www.sonicspot.com/guide/wavefiles.html
* https://ccrma.stanford.edu/courses/422/projects/WaveFormat/
* http://stackoverflow.com/questions/1111539/is-the-endianness-of-format-params-guaranteed-in-riff-wav-files
* http://sharkysoft.com/archive/lava/docs/javadocs/lava/riff/wave/doc-files/riffwave-content.htm
*/
final Bitstream.ByteInputStream bis = new Bitstream.ByteInputStream(aIn);
final Bitstream<InputStream> bs = new Bitstream<InputStream>(bis, false);
bs.setThrowIOExceptionOnEOF(true);
try {
final boolean bigEndian; // FIXME: for all data incl. signatures ?
final long riffMarker = bs.readUInt32(true /* bigEndian */);
if ( RIFF == riffMarker ) {
bigEndian = false;
} else if( RIFX == riffMarker ) {
bigEndian = true;
} else {
throw new ALException("Invalid RIF header: 0x"+Integer.toHexString((int)riffMarker)+", "+bs);
}
final long riffLenL = bs.readUInt32(bigEndian);
final int riffLenI = Bitstream.uint32LongToInt(riffLenL);
final long wavMarker = bs.readUInt32(true /* bigEndian */);
if ( WAVE != wavMarker ) {
throw new ALException("Invalid WAV header: 0x"+Integer.toHexString((int)wavMarker)+", "+bs);
}
boolean foundFmt = false;
boolean foundData = false;
short sChannels = 0, sSampleSizeInBits = 0;
long sampleRate = 0;
long chunkLength = 0;
while (!foundData) {
final int chunkId = (int)bs.readUInt32(true /* bigEndian */);
chunkLength = bs.readUInt32(bigEndian);
switch (chunkId) {
case FMT:
foundFmt = true;
@SuppressWarnings("unused")
final int compressionCode = bs.readUInt16(bigEndian);
sChannels = (short)bs.readUInt16(bigEndian);
sampleRate = bs.readUInt32(bigEndian);
@SuppressWarnings("unused")
final long bytesPerSeconds = bs.readUInt32(bigEndian);
@SuppressWarnings("unused")
final short blockAlignment = (short) bs.readUInt16(bigEndian);
sSampleSizeInBits = (short) bs.readUInt16(bigEndian);
bs.skip( 8 * ( chunkLength - 16 ) );
break;
case FACT:
// FIXME: compression format dependent data?
bs.skip( 8 * chunkLength );
break;
case DATA:
if (!foundFmt) {
throw new ALException("WAV fmt chunks must be before data chunks: "+bs);
}
foundData = true;
break;
default:
// unrecognized chunk, skips it
bs.skip( 8 * chunkLength );
}
}
final int channels = sChannels;
final int sampleSizeInBits = sSampleSizeInBits;
final float fSampleRate = sampleRate;
return WAVData.loadFromStream(bs.getSubStream(), riffLenI, channels, sampleSizeInBits,
Math.round(fSampleRate), bigEndian ? ByteOrder.BIG_ENDIAN : ByteOrder.LITTLE_ENDIAN, false);
} finally {
bs.close();
}
}
}
|
