com.gameminers.mav.audio.AudioManager.java Source code

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Here is the source code for com.gameminers.mav.audio.AudioManager.java

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/*
 * This file is part of Mav.
 *
 * Mav is free software: you can redistribute it and/or modify it under the terms
 * of the GNU Lesser General Public License as published by the Free Software
 * Foundation, either version 3 of the License, or (at your option) any later
 * version.
 *
 * Mav is distributed in the hope that it will be useful, but WITHOUT ANY
 * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
 * PARTICULAR PURPOSE.  See the GNU Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License along
 * with Mav. If not, see <http://www.gnu.org/licenses/>.
 */
package com.gameminers.mav.audio;

import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.HashMap;
import java.util.Map;

import javax.sound.sampled.AudioInputStream;
import javax.sound.sampled.AudioSystem;
import javax.sound.sampled.Mixer;
import javax.sound.sampled.UnsupportedAudioFileException;

import org.apache.commons.io.IOUtils;

import com.jsresources.AudioCapture;
import com.jsresources.AudioPlayback;
import com.jsresources.Constants;

public class AudioManager {
    private Mixer mixer;
    private AudioPlayback sink;
    private AudioCapture source;

    private Map<String, byte[]> clips = new HashMap<>();

    public void init() {
        Mixer.Info info = AudioSystem.getMixerInfo()[0];
        mixer = AudioSystem.getMixer(info); // TODO
        loadClip("notif1");
        loadClip("notif2");
        loadClip("notif3");
        loadClip("recog1");
        loadClip("fail1");
        loadClip("fail2");
        loadClip("listen1");
        sink = new AudioPlayback(Constants.FORMAT_CODE_CD, mixer,
                Constants.BUFFER_SIZE_MILLIS[Constants.BUFFER_SIZE_INDEX_DEFAULT]);
        source = new AudioCapture(Constants.FORMAT_CODE_SPHINX, mixer,
                Constants.BUFFER_SIZE_MILLIS[Constants.BUFFER_SIZE_INDEX_DEFAULT]);
        try {
            sink.open();
        } catch (Exception e) {
            e.printStackTrace();
        }
        try {
            source.open();
        } catch (Exception e) {
            e.printStackTrace();
        }
        try {
            sink.start();
        } catch (Exception e) {
            e.printStackTrace();
        }
        try {
            source.start();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    private void loadClip(String key) {
        try {
            InputStream in = ClassLoader.getSystemResourceAsStream("resources/audio/" + key + ".wav");
            clips.put(key, IOUtils.toByteArray(in));
            in.close();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

    public void playClip(String key) {
        if (!clips.containsKey(key))
            throw new RuntimeException("No clip with key '" + key + "'");
        try {
            sink.setAudioInputStream(AudioSystem.getAudioInputStream(new ByteArrayInputStream(clips.get(key))));
        } catch (UnsupportedAudioFileException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

    public void play(AudioInputStream stream) {
        sink.setAudioInputStream(stream);
    }

    public AudioPlayback getSink() {
        return sink;
    }

    public AudioCapture getSource() {
        return source;
    }

    public void destroy() {
        sink.close();
        source.close();
    }
}