/* * Copyright (c) 2007, 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 * or visit www.oracle.com if you need additional information or have any * questions. */package com.sun.media.sound;import java.util.Arrays;import javax.sound.sampled.AudioFormat;/** * This class is used to store audio buffer. * * @author Karl Helgason */public class SoftAudioBuffer { private int size; private float[] buffer; private boolean empty = true; private AudioFormat format; private AudioFloatConverter converter; private byte[] converter_buffer; public SoftAudioBuffer(int size, AudioFormat format) { this.size = size; this.format = format; converter = AudioFloatConverter.getConverter(format); } public void swap(SoftAudioBuffer swap) { int bak_size = size; float[] bak_buffer = buffer; boolean bak_empty = empty; AudioFormat bak_format = format; AudioFloatConverter bak_converter = converter; byte[] bak_converter_buffer = converter_buffer; size = swap.size; buffer = swap.buffer; empty = swap.empty; format = swap.format; converter = swap.converter; converter_buffer = swap.converter_buffer; swap.size = bak_size; swap.buffer = bak_buffer; swap.empty = bak_empty; swap.format = bak_format; swap.converter = bak_converter; swap.converter_buffer = bak_converter_buffer; } public AudioFormat getFormat() { return format; } public int getSize() { return size; } public void clear() { if (!empty) { Arrays.fill(buffer, 0); empty = true; } } public boolean isSilent() { return empty; } public float[] array() { empty = false; if (buffer == null) buffer = new float[size]; return buffer; } public void get(byte[] buffer, int channel) { int framesize_pc = (format.getFrameSize() / format.getChannels()); int c_len = size * framesize_pc; if (converter_buffer == null || converter_buffer.length < c_len) converter_buffer = new byte[c_len]; if (format.getChannels() == 1) { converter.toByteArray(array(), size, buffer); } else { converter.toByteArray(array(), size, converter_buffer); if (channel >= format.getChannels()) return; int z_stepover = format.getChannels() * framesize_pc; int k_stepover = framesize_pc; for (int j = 0; j < framesize_pc; j++) { int k = j; int z = channel * framesize_pc + j; for (int i = 0; i < size; i++) { buffer[z] = converter_buffer[k]; z += z_stepover; k += k_stepover; } } } }}
/*
* Copyright (c) 2007, 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
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
package com.sun.media.sound;
import java.util.Arrays;
import javax.sound.sampled.AudioFormat;
/**
* This class is used to store audio buffer.
*
* @author Karl Helgason
*/
public class SoftAudioBuffer {
private int size;
private float[] buffer;
private boolean empty = true;
private AudioFormat format;
private AudioFloatConverter converter;
private byte[] converter_buffer;
public SoftAudioBuffer(int size, AudioFormat format) {
this.size = size;
this.format = format;
converter = AudioFloatConverter.getConverter(format);
}
public void swap(SoftAudioBuffer swap)
{
int bak_size = size;
float[] bak_buffer = buffer;
boolean bak_empty = empty;
AudioFormat bak_format = format;
AudioFloatConverter bak_converter = converter;
byte[] bak_converter_buffer = converter_buffer;
size = swap.size;
buffer = swap.buffer;
empty = swap.empty;
format = swap.format;
converter = swap.converter;
converter_buffer = swap.converter_buffer;
swap.size = bak_size;
swap.buffer = bak_buffer;
swap.empty = bak_empty;
swap.format = bak_format;
swap.converter = bak_converter;
swap.converter_buffer = bak_converter_buffer;
}
public AudioFormat getFormat() {
return format;
}
public int getSize() {
return size;
}
public void clear() {
if (!empty) {
Arrays.fill(buffer, 0);
empty = true;
}
}
public boolean isSilent() {
return empty;
}
public float[] array() {
empty = false;
if (buffer == null)
buffer = new float[size];
return buffer;
}
public void get(byte[] buffer, int channel) {
int framesize_pc = (format.getFrameSize() / format.getChannels());
int c_len = size * framesize_pc;
if (converter_buffer == null || converter_buffer.length < c_len)
converter_buffer = new byte[c_len];
if (format.getChannels() == 1) {
converter.toByteArray(array(), size, buffer);
} else {
converter.toByteArray(array(), size, converter_buffer);
if (channel >= format.getChannels())
return;
int z_stepover = format.getChannels() * framesize_pc;
int k_stepover = framesize_pc;
for (int j = 0; j < framesize_pc; j++) {
int k = j;
int z = channel * framesize_pc + j;
for (int i = 0; i < size; i++) {
buffer[z] = converter_buffer[k];
z += z_stepover;
k += k_stepover;
}
}
}
}
}