javamixer.java.svn-base

开源项目openfire的完整源程序

/**
 * $Revision: $
 * $Date: $
 *
 * Copyright (C) 2006 Jive Software. All rights reserved.
 *
 * This software is published under the terms of the GNU Lesser Public License (LGPL),
 * a copy of which is included in this distribution.
 */
package org.jivesoftware.sparkplugin;

import javax.sound.sampled.*;
import javax.swing.tree.DefaultMutableTreeNode;
import javax.swing.tree.TreePath;
import javax.swing.tree.TreeNode;
import javax.swing.*;
import javax.swing.event.TreeSelectionListener;
import javax.swing.event.TreeSelectionEvent;
import javax.swing.border.TitledBorder;
import javax.swing.border.EtchedBorder;
import java.util.List;
import java.util.ArrayList;
import java.util.Enumeration;
import java.awt.*;
import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;

/**
 * Pure Java Audio Mixer. Control Volume and Settings for any Sound device in the OS.
 *
 * @author Thiago Camargo
 */

public class JavaMixer {

    private static final Line.Info[] EMPTY_PORT_INFO_ARRAY = new Line.Info[0];
    DefaultMutableTreeNode root = new DefaultMutableTreeNode("Sound Mixers", true);
    JTree tree = new JTree(root);

    public JavaMixer() {
        List<Mixer> portMixers = getPortMixers();
        if (portMixers.size() == 0) System.err.println("No Mixers Found.");
        for (Mixer mixer : portMixers) {
            JavaMixer.MixerNode mixerNode = new JavaMixer.MixerNode(mixer);
            createMixerChildren(mixerNode);
            root.add(mixerNode);
        }
    }

    public JTree getTree() {
        return tree;
    }

    public Component getPrefferedMasterVolume() {
        TreePath path = findByName(new TreePath(root), new String[]{"SPEAKER", "Volume"});

        if (path == null) {
            path = findByName(new TreePath(root), new String[]{"Master target", "Master", "Mute"});
        }

        if (path != null) {
            if (path.getLastPathComponent() instanceof JavaMixer.ControlNode)
                return ((JavaMixer.ControlNode) path.getLastPathComponent()).getComponent();
        }
        return null;
    }

    public Component getPrefferedInputVolume() {
        TreePath path = findByName(new TreePath(root), new String[]{"MICROPHONE", "Volume"});

        if (path == null) {
            path = findByName(new TreePath(root), new String[]{"Capture source", "Capture", "Volume"});
        }

        if (path != null) {
            if (path.getLastPathComponent() instanceof JavaMixer.ControlNode)
                return ((JavaMixer.ControlNode) path.getLastPathComponent()).getComponent();
        }
        return null;
    }

    public void setMicrophoneInput() {
        TreePath path = findByName(new TreePath(root), new String[]{"MICROPHONE", "Select"});

        if (path == null) {
            path = findByName(new TreePath(root), new String[]{"Capture source", "Capture", "Mute"});
        }

        if (path != null) {
            if (path.getLastPathComponent() instanceof JavaMixer.ControlNode) {
                BooleanControl bControl = (BooleanControl) (((JavaMixer.ControlNode) path.getLastPathComponent()).getControl());
                bControl.setValue(true);
            }
        }
    }

    public void setMuteForMicrophoneOutput() {
        TreePath path = findByName(new TreePath(root), new String[]{"SPEAKER", "Microfone", "Mute"});

        if (path == null) {
            path = findByName(new TreePath(root), new String[]{"MIC target", "mic", "Mute"});
        }

        if (path != null) {
            if (path.getLastPathComponent() instanceof JavaMixer.ControlNode) {
                BooleanControl bControl = (BooleanControl) (((JavaMixer.ControlNode) path.getLastPathComponent()).getControl());
                bControl.setValue(true);
            }
        }
    }

    /**
     * Returns the Mixers that support Port lines.
     *
     * @return List<Mixer> Port Mixers
     */
    private List<Mixer> getPortMixers() {
        List<Mixer> supportingMixers = new ArrayList<Mixer>();
        Mixer.Info[] aMixerInfos = AudioSystem.getMixerInfo();
        for (Mixer.Info aMixerInfo : aMixerInfos) {
            Mixer mixer = AudioSystem.getMixer(aMixerInfo);
            boolean bSupportsPorts = arePortsSupported(mixer);
            if (bSupportsPorts) {
                supportingMixers.add(mixer);
            }
        }
        return supportingMixers;
    }

    private boolean arePortsSupported(Mixer mixer) {
        Line.Info[] infos;
        infos = mixer.getSourceLineInfo();
        for (Line.Info info : infos) {
            if (info instanceof Port.Info) {
                return true;
            } else if (info instanceof DataLine.Info) {
                return true;
            }
        }
        infos = mixer.getTargetLineInfo();
        for (Line.Info info : infos) {
            if (info instanceof Port.Info) {
                return true;
            } else if (info instanceof DataLine.Info) {
                return true;
            }
        }
        return false;
    }

    private void createMixerChildren(JavaMixer.MixerNode mixerNode) {
        Mixer mixer = mixerNode.getMixer();
        Line.Info[] infosToCheck = getPortInfo(mixer);
        for (Line.Info anInfosToCheck : infosToCheck) {
            if (mixer.isLineSupported(anInfosToCheck)) {
                Port port = null;
                DataLine dLine = null;
                try {
                    if (anInfosToCheck instanceof Port.Info) {
                        port = (Port) mixer.getLine(anInfosToCheck);
                        port.open();
                    } else if (anInfosToCheck instanceof DataLine.Info) {
                        dLine = (DataLine) mixer.getLine(anInfosToCheck);
                        dLine.open();
                    }
                }
                catch (LineUnavailableException e) {
                    e.printStackTrace();
                } catch (Exception e) {
                    // Do Nothing
                }
                if (port != null) {
                    JavaMixer.PortNode portNode = new JavaMixer.PortNode(port);
                    createPortChildren(portNode);
                    mixerNode.add(portNode);
                } else if (dLine != null) {
                    JavaMixer.PortNode portNode = new JavaMixer.PortNode(dLine);
                    createPortChildren(portNode);
                    mixerNode.add(portNode);
                }
            }
        }
    }

    private Line.Info[] getPortInfo(Mixer mixer) {
        Line.Info[] infos;
        List<Line.Info> portInfoList = new ArrayList<Line.Info>();
        infos = mixer.getSourceLineInfo();
        for (Line.Info info : infos) {
            if (info instanceof Port.Info || info instanceof DataLine.Info) {
                portInfoList.add((Line.Info) info);
            }
        }
        infos = mixer.getTargetLineInfo();
        for (Line.Info info1 : infos) {
            if (info1 instanceof Port.Info || info1 instanceof DataLine.Info) {
                portInfoList.add((Line.Info) info1);
            }
        }
        return portInfoList.toArray(EMPTY_PORT_INFO_ARRAY);
    }

    private void createPortChildren(JavaMixer.PortNode portNode) {
        Control[] aControls = portNode.getPort().getControls();
        for (Control aControl : aControls) {
            JavaMixer.ControlNode controlNode = new JavaMixer.ControlNode(aControl);
            createControlChildren(controlNode);
            portNode.add(controlNode);
        }
    }

    private void createControlChildren(JavaMixer.ControlNode controlNode) {
        if (controlNode.getControl() instanceof CompoundControl) {
            CompoundControl control = (CompoundControl) controlNode.getControl();
            Control[] aControls = control.getMemberControls();
            for (Control con : aControls) {
                JavaMixer.ControlNode conNode = new JavaMixer.ControlNode(con);
                createControlChildren(conNode);
                controlNode.add(conNode);
            }
        }
    }

    /**