get Available Audio Input Lines - Java javax.sound.sampled

Java examples for javax.sound.sampled:Audio

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Description

get Available Audio Input Lines

Demo Code

/*//from w w  w. j  a  v a 2 s.c  o  m
 * Copyright 2011 Witoslaw Koczewsi <wi@koczewski.de>
 * 
 * This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero
 * General Public License as published by the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 * 
 * This program 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 Affero General Public
 * License for more details.
 * 
 * You should have received a copy of the GNU Affero General Public License along with this program. If not,
 * see <http://www.gnu.org/licenses/>.
 */
//package com.java2s;
import java.util.ArrayList;
import java.util.List;

import javax.sound.sampled.Line;
import javax.sound.sampled.LineUnavailableException;
import javax.sound.sampled.Mixer;

public class Main {
    public static List<Line> getAvailableInputLines(Mixer mixer) {
        return getAvailableLines(mixer, mixer.getSourceLineInfo());
    }

    private static List<Line> getAvailableLines(Mixer mixer,
            Line.Info[] lineInfos) {
        List<Line> lines = new ArrayList<Line>(lineInfos.length);
        for (Line.Info lineInfo : lineInfos) {
            Line line;
            line = getLineIfAvailable(mixer, lineInfo);
            if (line != null)
                lines.add(line);
        }
        return lines;
    }

    public static Line getLineIfAvailable(Mixer mixer, Line.Info lineInfo) {
        try {
            return mixer.getLine(lineInfo);
        } catch (LineUnavailableException ex) {
            return null;
        }
    }
}

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