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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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package com.sun.media.sound;

import java.io.ByteArrayOutputStream;
import java.io.DataInputStream;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.net.URL;

import javax.sound.midi.InvalidMidiDataException;
import javax.sound.midi.Soundbank;
import javax.sound.midi.spi.SoundbankReader;
import javax.sound.sampled.AudioInputStream;
import javax.sound.sampled.AudioSystem;
import javax.sound.sampled.UnsupportedAudioFileException;

Soundbank reader that uses audio files as soundbanks.
Author:Karl Helgason
/** * Soundbank reader that uses audio files as soundbanks. * * @author Karl Helgason */
public final class AudioFileSoundbankReader extends SoundbankReader { public Soundbank getSoundbank(URL url) throws InvalidMidiDataException, IOException { try { AudioInputStream ais = AudioSystem.getAudioInputStream(url); Soundbank sbk = getSoundbank(ais); ais.close(); return sbk; } catch (UnsupportedAudioFileException e) { return null; } catch (IOException e) { return null; } } public Soundbank getSoundbank(InputStream stream) throws InvalidMidiDataException, IOException { stream.mark(512); try { AudioInputStream ais = AudioSystem.getAudioInputStream(stream); Soundbank sbk = getSoundbank(ais); if (sbk != null) return sbk; } catch (UnsupportedAudioFileException e) { } catch (IOException e) { } stream.reset(); return null; } public Soundbank getSoundbank(AudioInputStream ais) throws InvalidMidiDataException, IOException { try { byte[] buffer; if (ais.getFrameLength() == -1) { ByteArrayOutputStream baos = new ByteArrayOutputStream(); byte[] buff = new byte[1024 - (1024 % ais.getFormat().getFrameSize())]; int ret; while ((ret = ais.read(buff)) != -1) { baos.write(buff, 0, ret); } ais.close(); buffer = baos.toByteArray(); } else { buffer = new byte[(int) (ais.getFrameLength() * ais.getFormat().getFrameSize())]; new DataInputStream(ais).readFully(buffer); } ModelByteBufferWavetable osc = new ModelByteBufferWavetable( new ModelByteBuffer(buffer), ais.getFormat(), -4800); ModelPerformer performer = new ModelPerformer(); performer.getOscillators().add(osc); SimpleSoundbank sbk = new SimpleSoundbank(); SimpleInstrument ins = new SimpleInstrument(); ins.add(performer); sbk.addInstrument(ins); return sbk; } catch (Exception e) { return null; } } public Soundbank getSoundbank(File file) throws InvalidMidiDataException, IOException { try { AudioInputStream ais = AudioSystem.getAudioInputStream(file); ais.close(); ModelByteBufferWavetable osc = new ModelByteBufferWavetable( new ModelByteBuffer(file, 0, file.length()), -4800); ModelPerformer performer = new ModelPerformer(); performer.getOscillators().add(osc); SimpleSoundbank sbk = new SimpleSoundbank(); SimpleInstrument ins = new SimpleInstrument(); ins.add(performer); sbk.addInstrument(ins); return sbk; } catch (UnsupportedAudioFileException e1) { return null; } catch (IOException e) { return null; } } }