package de.jarnbjo.vorbis; /* * $ProjectName$ * $ProjectRevision$ * ----------------------------------------------------------- * $Id: VorbisAudioFileReader.java,v 1.1 2003/08/08 19:48:22 jarnbjo Exp $ * ----------------------------------------------------------- * * $Author: jarnbjo $ * * Description: * * Copyright 2002-2003 Tor-Einar Jarnbjo * ----------------------------------------------------------- * * Change History * ----------------------------------------------------------- * $Log: VorbisAudioFileReader.java,v $ * */ import java.io.*; import java.net.*; import java.util.*; import de.jarnbjo.ogg.*; import de.jarnbjo.vorbis.*; import javax.sound.sampled.*; import javax.sound.sampled.spi.AudioFileReader; 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; } } } }