/*
* Copyright (c) 2008, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code 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 General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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package com.sun.media.sound;
import java.io.IOException;
import java.io.InputStream;
import java.util.ArrayList;
import java.util.List;
import javax.sound.sampled.AudioInputStream;
import javax.sound.sampled.AudioSystem;
/**
* Main mixer for SoftMixingMixer.
*
* @author Karl Helgason
*/
public class SoftMixingMainMixer {
public final static int CHANNEL_LEFT = 0;
public final static int CHANNEL_RIGHT = 1;
public final static int CHANNEL_EFFECT1 = 2;
public final static int CHANNEL_EFFECT2 = 3;
public final static int CHANNEL_EFFECT3 = 4;
public final static int CHANNEL_EFFECT4 = 5;
public final static int CHANNEL_LEFT_DRY = 10;
public final static int CHANNEL_RIGHT_DRY = 11;
public final static int CHANNEL_SCRATCH1 = 12;
public final static int CHANNEL_SCRATCH2 = 13;
public final static int CHANNEL_CHANNELMIXER_LEFT = 14;
public final static int CHANNEL_CHANNELMIXER_RIGHT = 15;
private SoftMixingMixer mixer;
private AudioInputStream ais;
private SoftAudioBuffer[] buffers;
private SoftAudioProcessor reverb;
private SoftAudioProcessor chorus;
private SoftAudioProcessor agc;
private int nrofchannels;
private Object control_mutex;
private List<SoftMixingDataLine> openLinesList = new ArrayList<SoftMixingDataLine>();
private SoftMixingDataLine[] openLines = new SoftMixingDataLine[0];
public AudioInputStream getInputStream() {
return ais;
}
protected void processAudioBuffers() {
for (int i = 0; i < buffers.length; i++) {
buffers[i].clear();
}
SoftMixingDataLine[] openLines;
synchronized (control_mutex) {
openLines = this.openLines;
for (int i = 0; i < openLines.length; i++) {
openLines[i].processControlLogic();
}
chorus.processControlLogic();
reverb.processControlLogic();
agc.processControlLogic();
}
for (int i = 0; i < openLines.length; i++) {
openLines[i].processAudioLogic(buffers);
}
chorus.processAudio();
reverb.processAudio();
agc.processAudio();
}
public SoftMixingMainMixer(SoftMixingMixer mixer) {
this.mixer = mixer;
nrofchannels = mixer.getFormat().getChannels();
int buffersize = (int) (mixer.getFormat().getSampleRate() / mixer
.getControlRate());
control_mutex = mixer.control_mutex;
buffers = new SoftAudioBuffer[16];
for (int i = 0; i < buffers.length; i++) {
buffers[i] = new SoftAudioBuffer(buffersize, mixer.getFormat());
}
reverb = new SoftReverb();
chorus = new SoftChorus();
agc = new SoftLimiter();
float samplerate = mixer.getFormat().getSampleRate();
float controlrate = mixer.getControlRate();
reverb.init(samplerate, controlrate);
chorus.init(samplerate, controlrate);
agc.init(samplerate, controlrate);
reverb.setMixMode(true);
chorus.setMixMode(true);
agc.setMixMode(false);
chorus.setInput(0, buffers[CHANNEL_EFFECT2]);
chorus.setOutput(0, buffers[CHANNEL_LEFT]);
if (nrofchannels != 1)
chorus.setOutput(1, buffers[CHANNEL_RIGHT]);
chorus.setOutput(2, buffers[CHANNEL_EFFECT1]);
reverb.setInput(0, buffers[CHANNEL_EFFECT1]);
reverb.setOutput(0, buffers[CHANNEL_LEFT]);
if (nrofchannels != 1)
reverb.setOutput(1, buffers[CHANNEL_RIGHT]);
agc.setInput(0, buffers[CHANNEL_LEFT]);
if (nrofchannels != 1)
agc.setInput(1, buffers[CHANNEL_RIGHT]);
agc.setOutput(0, buffers[CHANNEL_LEFT]);
if (nrofchannels != 1)
agc.setOutput(1, buffers[CHANNEL_RIGHT]);
InputStream in = new InputStream() {
private SoftAudioBuffer[] buffers = SoftMixingMainMixer.this.buffers;
private int nrofchannels = SoftMixingMainMixer.this.mixer
.getFormat().getChannels();
private int buffersize = buffers[0].getSize();
private byte[] bbuffer = new byte[buffersize
* (SoftMixingMainMixer.this.mixer.getFormat()
.getSampleSizeInBits() / 8) * nrofchannels];
private int bbuffer_pos = 0;
private byte[] single = new byte[1];
public void fillBuffer() {
processAudioBuffers();
for (int i = 0; i < nrofchannels; i++)
buffers[i].get(bbuffer, i);
bbuffer_pos = 0;
}
public int read(byte[] b, int off, int len) {
int bbuffer_len = bbuffer.length;
int offlen = off + len;
byte[] bbuffer = this.bbuffer;
while (off < offlen)
if (available() == 0)
fillBuffer();
else {
int bbuffer_pos = this.bbuffer_pos;
while (off < offlen && bbuffer_pos < bbuffer_len)
b[off++] = bbuffer[bbuffer_pos++];
this.bbuffer_pos = bbuffer_pos;
}
return len;
}
public int read() throws IOException {
int ret = read(single);
if (ret == -1)
return -1;
return single[0] & 0xFF;
}
public int available() {
return bbuffer.length - bbuffer_pos;
}
public void close() {
SoftMixingMainMixer.this.mixer.close();
}
};
ais = new AudioInputStream(in, mixer.getFormat(),
AudioSystem.NOT_SPECIFIED);
}
public void openLine(SoftMixingDataLine line) {
synchronized (control_mutex) {
openLinesList.add(line);
openLines = openLinesList
.toArray(new SoftMixingDataLine[openLinesList.size()]);
}
}
public void closeLine(SoftMixingDataLine line) {
synchronized (control_mutex) {
openLinesList.remove(line);
openLines = openLinesList
.toArray(new SoftMixingDataLine[openLinesList.size()]);
if (openLines.length == 0)
if (mixer.implicitOpen)
mixer.close();
}
}
public SoftMixingDataLine[] getOpenLines() {
synchronized (control_mutex) {
return openLines;
}
}
public void close() {
SoftMixingDataLine[] openLines = this.openLines;
for (int i = 0; i < openLines.length; i++) {
openLines[i].close();
}
}
}