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authorBjörn Stenberg <bjorn@haxx.se>2007-01-08 23:53:00 +0000
committerBjörn Stenberg <bjorn@haxx.se>2007-01-08 23:53:00 +0000
commit7039a05147b8bbfc829babea1c65bd436450b505 (patch)
tree4ba555eb84ed97b72b0575034d5b0530a393713e /songdbj/de/jarnbjo/vorbis/VorbisAudioFileReader.java
parent6d4c19707ef95942e323cbdc89fbbfdbe45e7cc5 (diff)
downloadrockbox-7039a05147b8bbfc829babea1c65bd436450b505.tar.gz
rockbox-7039a05147b8bbfc829babea1c65bd436450b505.zip
Splitting out songdbj
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@11953 a1c6a512-1295-4272-9138-f99709370657
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diff --git a/songdbj/de/jarnbjo/vorbis/VorbisAudioFileReader.java b/songdbj/de/jarnbjo/vorbis/VorbisAudioFileReader.java
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1package de.jarnbjo.vorbis;
2
3/*
4 * $ProjectName$
5 * $ProjectRevision$
6 * -----------------------------------------------------------
7 * $Id$
8 * -----------------------------------------------------------
9 *
10 * $Author$
11 *
12 * Description:
13 *
14 * Copyright 2002-2003 Tor-Einar Jarnbjo
15 * -----------------------------------------------------------
16 *
17 * Change History
18 * -----------------------------------------------------------
19 * $Log$
20 * Revision 1.1 2005/07/11 15:42:36 hcl
21 * Songdb java version, source. only 1.5 compatible
22 *
23 * Revision 1.2 2004/09/21 06:39:06 shred
24 * Importe reorganisiert, damit Eclipse Ruhe gibt. ;-)
25 *
26 * Revision 1.1.1.1 2004/04/04 22:09:12 shred
27 * First Import
28 *
29 *
30 */
31
32import java.io.File;
33import java.io.IOException;
34import java.io.InputStream;
35import java.io.RandomAccessFile;
36import java.net.URL;
37import java.util.Collection;
38
39import javax.sound.sampled.AudioFileFormat;
40import javax.sound.sampled.AudioFormat;
41import javax.sound.sampled.AudioInputStream;
42import javax.sound.sampled.AudioSystem;
43import javax.sound.sampled.UnsupportedAudioFileException;
44import javax.sound.sampled.spi.AudioFileReader;
45
46import de.jarnbjo.ogg.BasicStream;
47import de.jarnbjo.ogg.EndOfOggStreamException;
48import de.jarnbjo.ogg.FileStream;
49import de.jarnbjo.ogg.LogicalOggStream;
50import de.jarnbjo.ogg.OggFormatException;
51import de.jarnbjo.ogg.PhysicalOggStream;
52import de.jarnbjo.ogg.UncachedUrlStream;
53
54public class VorbisAudioFileReader extends AudioFileReader {
55
56 public VorbisAudioFileReader() {
57 }
58
59 public AudioFileFormat getAudioFileFormat(File file) throws IOException, UnsupportedAudioFileException {
60 try {
61 return getAudioFileFormat(new FileStream(new RandomAccessFile(file, "r")));
62 }
63 catch(OggFormatException e) {
64 throw new UnsupportedAudioFileException(e.getMessage());
65 }
66 }
67
68 public AudioFileFormat getAudioFileFormat(InputStream stream) throws IOException, UnsupportedAudioFileException {
69 try {
70 return getAudioFileFormat(new BasicStream(stream));
71 }
72 catch(OggFormatException e) {
73 throw new UnsupportedAudioFileException(e.getMessage());
74 }
75 }
76
77 public AudioFileFormat getAudioFileFormat(URL url) throws IOException, UnsupportedAudioFileException {
78 try {
79 return getAudioFileFormat(new UncachedUrlStream(url));
80 }
81 catch(OggFormatException e) {
82 throw new UnsupportedAudioFileException(e.getMessage());
83 }
84 }
85
86 private AudioFileFormat getAudioFileFormat(PhysicalOggStream oggStream) throws IOException, UnsupportedAudioFileException {
87 try {
88 Collection streams=oggStream.getLogicalStreams();
89 if(streams.size()!=1) {
90 throw new UnsupportedAudioFileException("Only Ogg files with one logical Vorbis stream are supported.");
91 }
92
93 LogicalOggStream los=(LogicalOggStream)streams.iterator().next();
94 if(los.getFormat()!=LogicalOggStream.FORMAT_VORBIS) {
95 throw new UnsupportedAudioFileException("Only Ogg files with one logical Vorbis stream are supported.");
96 }
97
98 VorbisStream vs=new VorbisStream(los);
99
100 AudioFormat audioFormat=new AudioFormat(
101 (float)vs.getIdentificationHeader().getSampleRate(),
102 16,
103 vs.getIdentificationHeader().getChannels(),
104 true, true);
105
106 return new AudioFileFormat(VorbisFormatType.getInstance(), audioFormat, AudioSystem.NOT_SPECIFIED);
107 }
108 catch(OggFormatException e) {
109 throw new UnsupportedAudioFileException(e.getMessage());
110 }
111 catch(VorbisFormatException e) {
112 throw new UnsupportedAudioFileException(e.getMessage());
113 }
114 }
115
116
117
118 public AudioInputStream getAudioInputStream(File file) throws IOException, UnsupportedAudioFileException {
119 try {
120 return getAudioInputStream(new FileStream(new RandomAccessFile(file, "r")));
121 }
122 catch(OggFormatException e) {
123 throw new UnsupportedAudioFileException(e.getMessage());
124 }
125 }
126
127 public AudioInputStream getAudioInputStream(InputStream stream) throws IOException, UnsupportedAudioFileException {
128 try {
129 return getAudioInputStream(new BasicStream(stream));
130 }
131 catch(OggFormatException e) {
132 throw new UnsupportedAudioFileException(e.getMessage());
133 }
134 }
135
136 public AudioInputStream getAudioInputStream(URL url) throws IOException, UnsupportedAudioFileException {
137 try {
138 return getAudioInputStream(new UncachedUrlStream(url));
139 }
140 catch(OggFormatException e) {
141 throw new UnsupportedAudioFileException(e.getMessage());
142 }
143 }
144
145 private AudioInputStream getAudioInputStream(PhysicalOggStream oggStream) throws IOException, UnsupportedAudioFileException {
146 try {
147 Collection streams=oggStream.getLogicalStreams();
148 if(streams.size()!=1) {
149 throw new UnsupportedAudioFileException("Only Ogg files with one logical Vorbis stream are supported.");
150 }
151
152 LogicalOggStream los=(LogicalOggStream)streams.iterator().next();
153 if(los.getFormat()!=LogicalOggStream.FORMAT_VORBIS) {
154 throw new UnsupportedAudioFileException("Only Ogg files with one logical Vorbis stream are supported.");
155 }
156
157 VorbisStream vs=new VorbisStream(los);
158
159 AudioFormat audioFormat=new AudioFormat(
160 (float)vs.getIdentificationHeader().getSampleRate(),
161 16,
162 vs.getIdentificationHeader().getChannels(),
163 true, true);
164
165 return new AudioInputStream(new VorbisInputStream(vs), audioFormat, -1);
166 }
167 catch(OggFormatException e) {
168 throw new UnsupportedAudioFileException(e.getMessage());
169 }
170 catch(VorbisFormatException e) {
171 throw new UnsupportedAudioFileException(e.getMessage());
172 }
173 }
174
175
176 public static class VorbisFormatType extends AudioFileFormat.Type {
177
178 private static final VorbisFormatType instance=new VorbisFormatType();
179
180 private VorbisFormatType() {
181 super("VORBIS", "ogg");
182 }
183
184 public static AudioFileFormat.Type getInstance() {
185 return instance;
186 }
187 }
188
189 public static class VorbisInputStream extends InputStream {
190
191 private VorbisStream source;
192 private byte[] buffer=new byte[8192];
193
194 public VorbisInputStream(VorbisStream source) {
195 this.source=source;
196 }
197
198 public int read() throws IOException {
199 return 0;
200 }
201
202 public int read(byte[] buffer) throws IOException {
203 return read(buffer, 0, buffer.length);
204 }
205
206 public int read(byte[] buffer, int offset, int length) throws IOException {
207 try {
208 return source.readPcm(buffer, offset, length);
209 }
210 catch(EndOfOggStreamException e) {
211 return -1;
212 }
213 }
214 }
215
216
217} \ No newline at end of file
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