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package de.jarnbjo.vorbis;
/*
* $ProjectName$
* $ProjectRevision$
* -----------------------------------------------------------
* $Id$
* -----------------------------------------------------------
*
* $Author$
*
* Description:
*
* Copyright 2002-2003 Tor-Einar Jarnbjo
* -----------------------------------------------------------
*
* Change History
* -----------------------------------------------------------
* $Log$
* Revision 1.1 2005/07/11 15:42:36 hcl
* Songdb java version, source. only 1.5 compatible
*
* Revision 1.2 2004/09/21 06:39:06 shred
* Importe reorganisiert, damit Eclipse Ruhe gibt. ;-)
*
* Revision 1.1.1.1 2004/04/04 22:09:12 shred
* First Import
*
*
*/
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.io.RandomAccessFile;
import java.net.URL;
import java.util.Collection;
import javax.sound.sampled.AudioFileFormat;
import javax.sound.sampled.AudioFormat;
import javax.sound.sampled.AudioInputStream;
import javax.sound.sampled.AudioSystem;
import javax.sound.sampled.UnsupportedAudioFileException;
import javax.sound.sampled.spi.AudioFileReader;
import de.jarnbjo.ogg.BasicStream;
import de.jarnbjo.ogg.EndOfOggStreamException;
import de.jarnbjo.ogg.FileStream;
import de.jarnbjo.ogg.LogicalOggStream;
import de.jarnbjo.ogg.OggFormatException;
import de.jarnbjo.ogg.PhysicalOggStream;
import de.jarnbjo.ogg.UncachedUrlStream;
public class VorbisAudioFileReader extends AudioFileReader {
public VorbisAudioFileReader() {
}
public AudioFileFormat getAudioFileFormat(File file) throws IOException, UnsupportedAudioFileException {
try {
return getAudioFileFormat(new FileStream(new RandomAccessFile(file, "r")));
}
catch(OggFormatException e) {
throw new UnsupportedAudioFileException(e.getMessage());
}
}
public AudioFileFormat getAudioFileFormat(InputStream stream) throws IOException, UnsupportedAudioFileException {
try {
return getAudioFileFormat(new BasicStream(stream));
}
catch(OggFormatException e) {
throw new UnsupportedAudioFileException(e.getMessage());
}
}
public AudioFileFormat getAudioFileFormat(URL url) throws IOException, UnsupportedAudioFileException {
try {
return getAudioFileFormat(new UncachedUrlStream(url));
}
catch(OggFormatException e) {
throw new UnsupportedAudioFileException(e.getMessage());
}
}
private AudioFileFormat getAudioFileFormat(PhysicalOggStream oggStream) throws IOException, UnsupportedAudioFileException {
try {
Collection streams=oggStream.getLogicalStreams();
if(streams.size()!=1) {
throw new UnsupportedAudioFileException("Only Ogg files with one logical Vorbis stream are supported.");
}
LogicalOggStream los=(LogicalOggStream)streams.iterator().next();
if(los.getFormat()!=LogicalOggStream.FORMAT_VORBIS) {
throw new UnsupportedAudioFileException("Only Ogg files with one logical Vorbis stream are supported.");
}
VorbisStream vs=new VorbisStream(los);
AudioFormat audioFormat=new AudioFormat(
(float)vs.getIdentificationHeader().getSampleRate(),
16,
vs.getIdentificationHeader().getChannels(),
true, true);
return new AudioFileFormat(VorbisFormatType.getInstance(), audioFormat, AudioSystem.NOT_SPECIFIED);
}
catch(OggFormatException e) {
throw new UnsupportedAudioFileException(e.getMessage());
}
catch(VorbisFormatException e) {
throw new UnsupportedAudioFileException(e.getMessage());
}
}
public AudioInputStream getAudioInputStream(File file) throws IOException, UnsupportedAudioFileException {
try {
return getAudioInputStream(new FileStream(new RandomAccessFile(file, "r")));
}
catch(OggFormatException e) {
throw new UnsupportedAudioFileException(e.getMessage());
}
}
public AudioInputStream getAudioInputStream(InputStream stream) throws IOException, UnsupportedAudioFileException {
try {
return getAudioInputStream(new BasicStream(stream));
}
catch(OggFormatException e) {
throw new UnsupportedAudioFileException(e.getMessage());
}
}
public AudioInputStream getAudioInputStream(URL url) throws IOException, UnsupportedAudioFileException {
try {
return getAudioInputStream(new UncachedUrlStream(url));
}
catch(OggFormatException e) {
throw new UnsupportedAudioFileException(e.getMessage());
}
}
private AudioInputStream getAudioInputStream(PhysicalOggStream oggStream) throws IOException, UnsupportedAudioFileException {
try {
Collection streams=oggStream.getLogicalStreams();
if(streams.size()!=1) {
throw new UnsupportedAudioFileException("Only Ogg files with one logical Vorbis stream are supported.");
}
LogicalOggStream los=(LogicalOggStream)streams.iterator().next();
if(los.getFormat()!=LogicalOggStream.FORMAT_VORBIS) {
throw new UnsupportedAudioFileException("Only Ogg files with one logical Vorbis stream are supported.");
}
VorbisStream vs=new VorbisStream(los);
AudioFormat audioFormat=new AudioFormat(
(float)vs.getIdentificationHeader().getSampleRate(),
16,
vs.getIdentificationHeader().getChannels(),
true, true);
return new AudioInputStream(new VorbisInputStream(vs), audioFormat, -1);
}
catch(OggFormatException e) {
throw new UnsupportedAudioFileException(e.getMessage());
}
catch(VorbisFormatException e) {
throw new UnsupportedAudioFileException(e.getMessage());
}
}
public static class VorbisFormatType extends AudioFileFormat.Type {
private static final VorbisFormatType instance=new VorbisFormatType();
private VorbisFormatType() {
super("VORBIS", "ogg");
}
public static AudioFileFormat.Type getInstance() {
return instance;
}
}
public static class VorbisInputStream extends InputStream {
private VorbisStream source;
private byte[] buffer=new byte[8192];
public VorbisInputStream(VorbisStream source) {
this.source=source;
}
public int read() throws IOException {
return 0;
}
public int read(byte[] buffer) throws IOException {
return read(buffer, 0, buffer.length);
}
public int read(byte[] buffer, int offset, int length) throws IOException {
try {
return source.readPcm(buffer, offset, length);
}
catch(EndOfOggStreamException e) {
return -1;
}
}
}
}
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