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	/*
	* Copyright (c) 2007, 2013, 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.nio.ByteBuffer;
	import java.nio.ByteOrder;
	import java.nio.DoubleBuffer;
	import java.nio.FloatBuffer;

	import javax.sound.sampled.AudioFormat;
	import javax.sound.sampled.AudioFormat.Encoding;

	/**
	* This class is used to convert between 8,16,24,32,32+ bit signed/unsigned
	* big/litle endian fixed/floating point byte buffers and float buffers.
	*
	* @author Karl Helgason
	*/
	public abstract class AudioFloatConverter {

	/***************************************************************************
	*
	* LSB Filter, used filter least significant byte in samples arrays.
	*
	* Is used filter out data in lsb byte when SampleSizeInBits is not
	* dividable by 8.
	*
	**************************************************************************/

	private static class AudioFloatLSBFilter extends AudioFloatConverter {

	private final AudioFloatConverter converter;

	final private int offset;

	final private int stepsize;

	final private byte mask;

	private byte[] mask_buffer;

	AudioFloatLSBFilter(AudioFloatConverter converter, AudioFormat format) {
	int bits = format.getSampleSizeInBits();
	boolean bigEndian = format.isBigEndian();
	this.converter = converter;
	stepsize = (bits + 7) / 8;
	offset = bigEndian ? (stepsize - 1) : 0;
	int lsb_bits = bits % 8;
	if (lsb_bits == 0)
	mask = (byte) 0x00;
	else if (lsb_bits == 1)
	mask = (byte) 0x80;
	else if (lsb_bits == 2)
	mask = (byte) 0xC0;
	else if (lsb_bits == 3)
	mask = (byte) 0xE0;
	else if (lsb_bits == 4)
	mask = (byte) 0xF0;
	else if (lsb_bits == 5)
	mask = (byte) 0xF8;
	else if (lsb_bits == 6)
	mask = (byte) 0xFC;
	else if (lsb_bits == 7)
	mask = (byte) 0xFE;
	else
	mask = (byte) 0xFF;
	}

	public byte[] toByteArray(float[] in_buff, int in_offset, int in_len,
	byte[] out_buff, int out_offset) {
	byte[] ret = converter.toByteArray(in_buff, in_offset, in_len,
	out_buff, out_offset);

	int out_offset_end = in_len * stepsize;
	for (int i = out_offset + offset; i < out_offset_end; i += stepsize) {
	out_buff[i] = (byte) (out_buff[i] & mask);
	}

	return ret;
	}

	public float[] toFloatArray(byte[] in_buff, int in_offset,
	float[] out_buff, int out_offset, int out_len) {
	if (mask_buffer == null \|\| mask_buffer.length < in_buff.length)
	mask_buffer = new byte[in_buff.length];
	System.arraycopy(in_buff, 0, mask_buffer, 0, in_buff.length);
	int in_offset_end = out_len * stepsize;
	for (int i = in_offset + offset; i < in_offset_end; i += stepsize) {
	mask_buffer[i] = (byte) (mask_buffer[i] & mask);
	}
	float[] ret = converter.toFloatArray(mask_buffer, in_offset,
	out_buff, out_offset, out_len);
	return ret;
	}

	}

	/***************************************************************************
	*
	* 64 bit float, little/big-endian
	*
	**************************************************************************/

	// PCM 64 bit float, little-endian
	private static class AudioFloatConversion64L extends AudioFloatConverter {
	ByteBuffer bytebuffer = null;

	DoubleBuffer floatbuffer = null;

	double[] double_buff = null;

	public float[] toFloatArray(byte[] in_buff, int in_offset,
	float[] out_buff, int out_offset, int out_len) {
	int in_len = out_len * 8;
	if (bytebuffer == null \|\| bytebuffer.capacity() < in_len) {
	bytebuffer = ByteBuffer.allocate(in_len).order(
	ByteOrder.LITTLE_ENDIAN);
	floatbuffer = bytebuffer.asDoubleBuffer();
	}
	bytebuffer.position(0);
	floatbuffer.position(0);
	bytebuffer.put(in_buff, in_offset, in_len);
	if (double_buff == null
	\|\| double_buff.length < out_len + out_offset)
	double_buff = new double[out_len + out_offset];
	floatbuffer.get(double_buff, out_offset, out_len);
	int out_offset_end = out_offset + out_len;
	for (int i = out_offset; i < out_offset_end; i++) {
	out_buff[i] = (float) double_buff[i];
	}
	return out_buff;
	}

	public byte[] toByteArray(float[] in_buff, int in_offset, int in_len,
	byte[] out_buff, int out_offset) {
	int out_len = in_len * 8;
	if (bytebuffer == null \|\| bytebuffer.capacity() < out_len) {
	bytebuffer = ByteBuffer.allocate(out_len).order(
	ByteOrder.LITTLE_ENDIAN);
	floatbuffer = bytebuffer.asDoubleBuffer();
	}
	floatbuffer.position(0);
	bytebuffer.position(0);
	if (double_buff == null \|\| double_buff.length < in_offset + in_len)
	double_buff = new double[in_offset + in_len];
	int in_offset_end = in_offset + in_len;
	for (int i = in_offset; i < in_offset_end; i++) {
	double_buff[i] = in_buff[i];
	}
	floatbuffer.put(double_buff, in_offset, in_len);
	bytebuffer.get(out_buff, out_offset, out_len);
	return out_buff;
	}
	}

	// PCM 64 bit float, big-endian
	private static class AudioFloatConversion64B extends AudioFloatConverter {
	ByteBuffer bytebuffer = null;

	DoubleBuffer floatbuffer = null;

	double[] double_buff = null;

	public float[] toFloatArray(byte[] in_buff, int in_offset,
	float[] out_buff, int out_offset, int out_len) {
	int in_len = out_len * 8;
	if (bytebuffer == null \|\| bytebuffer.capacity() < in_len) {
	bytebuffer = ByteBuffer.allocate(in_len).order(
	ByteOrder.BIG_ENDIAN);
	floatbuffer = bytebuffer.asDoubleBuffer();
	}
	bytebuffer.position(0);
	floatbuffer.position(0);
	bytebuffer.put(in_buff, in_offset, in_len);
	if (double_buff == null
	\|\| double_buff.length < out_len + out_offset)
	double_buff = new double[out_len + out_offset];
	floatbuffer.get(double_buff, out_offset, out_len);
	int out_offset_end = out_offset + out_len;
	for (int i = out_offset; i < out_offset_end; i++) {
	out_buff[i] = (float) double_buff[i];
	}
	return out_buff;
	}

	public byte[] toByteArray(float[] in_buff, int in_offset, int in_len,
	byte[] out_buff, int out_offset) {
	int out_len = in_len * 8;
	if (bytebuffer == null \|\| bytebuffer.capacity() < out_len) {
	bytebuffer = ByteBuffer.allocate(out_len).order(
	ByteOrder.BIG_ENDIAN);
	floatbuffer = bytebuffer.asDoubleBuffer();
	}
	floatbuffer.position(0);
	bytebuffer.position(0);
	if (double_buff == null \|\| double_buff.length < in_offset + in_len)
	double_buff = new double[in_offset + in_len];
	int in_offset_end = in_offset + in_len;
	for (int i = in_offset; i < in_offset_end; i++) {
	double_buff[i] = in_buff[i];
	}
	floatbuffer.put(double_buff, in_offset, in_len);
	bytebuffer.get(out_buff, out_offset, out_len);
	return out_buff;
	}
	}

	/***************************************************************************
	*
	* 32 bit float, little/big-endian
	*
	**************************************************************************/

	// PCM 32 bit float, little-endian
	private static class AudioFloatConversion32L extends AudioFloatConverter {
	ByteBuffer bytebuffer = null;

	FloatBuffer floatbuffer = null;

	public float[] toFloatArray(byte[] in_buff, int in_offset,
	float[] out_buff, int out_offset, int out_len) {
	int in_len = out_len * 4;
	if (bytebuffer == null \|\| bytebuffer.capacity() < in_len) {
	bytebuffer = ByteBuffer.allocate(in_len).order(
	ByteOrder.LITTLE_ENDIAN);
	floatbuffer = bytebuffer.asFloatBuffer();
	}
	bytebuffer.position(0);
	floatbuffer.position(0);
	bytebuffer.put(in_buff, in_offset, in_len);
	floatbuffer.get(out_buff, out_offset, out_len);
	return out_buff;
	}

	public byte[] toByteArray(float[] in_buff, int in_offset, int in_len,
	byte[] out_buff, int out_offset) {
	int out_len = in_len * 4;
	if (bytebuffer == null \|\| bytebuffer.capacity() < out_len) {
	bytebuffer = ByteBuffer.allocate(out_len).order(
	ByteOrder.LITTLE_ENDIAN);
	floatbuffer = bytebuffer.asFloatBuffer();
	}
	floatbuffer.position(0);
	bytebuffer.position(0);
	floatbuffer.put(in_buff, in_offset, in_len);
	bytebuffer.get(out_buff, out_offset, out_len);
	return out_buff;
	}
	}

	// PCM 32 bit float, big-endian
	private static class AudioFloatConversion32B extends AudioFloatConverter {
	ByteBuffer bytebuffer = null;

	FloatBuffer floatbuffer = null;

	public float[] toFloatArray(byte[] in_buff, int in_offset,
	float[] out_buff, int out_offset, int out_len) {
	int in_len = out_len * 4;
	if (bytebuffer == null \|\| bytebuffer.capacity() < in_len) {
	bytebuffer = ByteBuffer.allocate(in_len).order(
	ByteOrder.BIG_ENDIAN);
	floatbuffer = bytebuffer.asFloatBuffer();
	}
	bytebuffer.position(0);
	floatbuffer.position(0);
	bytebuffer.put(in_buff, in_offset, in_len);
	floatbuffer.get(out_buff, out_offset, out_len);
	return out_buff;
	}

	public byte[] toByteArray(float[] in_buff, int in_offset, int in_len,
	byte[] out_buff, int out_offset) {
	int out_len = in_len * 4;
	if (bytebuffer == null \|\| bytebuffer.capacity() < out_len) {
	bytebuffer = ByteBuffer.allocate(out_len).order(
	ByteOrder.BIG_ENDIAN);
	floatbuffer = bytebuffer.asFloatBuffer();
	}
	floatbuffer.position(0);
	bytebuffer.position(0);
	floatbuffer.put(in_buff, in_offset, in_len);
	bytebuffer.get(out_buff, out_offset, out_len);
	return out_buff;
	}
	}

	/***************************************************************************
	*
	* 8 bit signed/unsigned
	*
	**************************************************************************/

	// PCM 8 bit, signed
	private static class AudioFloatConversion8S extends AudioFloatConverter {
	public float[] toFloatArray(byte[] in_buff, int in_offset,
	float[] out_buff, int out_offset, int out_len) {
	int ix = in_offset;
	int ox = out_offset;
	for (int i = 0; i < out_len; i++)
	out_buff[ox++] = in_buff[ix++] * (1.0f / 127.0f);
	return out_buff;
	}

	public byte[] toByteArray(float[] in_buff, int in_offset, int in_len,
	byte[] out_buff, int out_offset) {
	int ix = in_offset;
	int ox = out_offset;
	for (int i = 0; i < in_len; i++)
	out_buff[ox++] = (byte) (in_buff[ix++] * 127.0f);
	return out_buff;
	}
	}

	// PCM 8 bit, unsigned
	private static class AudioFloatConversion8U extends AudioFloatConverter {
	public float[] toFloatArray(byte[] in_buff, int in_offset,
	float[] out_buff, int out_offset, int out_len) {
	int ix = in_offset;
	int ox = out_offset;
	for (int i = 0; i < out_len; i++)
	out_buff[ox++] = ((in_buff[ix++] & 0xFF) - 127)
	* (1.0f / 127.0f);
	return out_buff;
	}

	public byte[] toByteArray(float[] in_buff, int in_offset, int in_len,
	byte[] out_buff, int out_offset) {
	int ix = in_offset;
	int ox = out_offset;
	for (int i = 0; i < in_len; i++)
	out_buff[ox++] = (byte) (127 + in_buff[ix++] * 127.0f);
	return out_buff;
	}
	}

	/***************************************************************************
	*
	* 16 bit signed/unsigned, little/big-endian
	*
	**************************************************************************/

	// PCM 16 bit, signed, little-endian
	private static class AudioFloatConversion16SL extends AudioFloatConverter {
	public float[] toFloatArray(byte[] in_buff, int in_offset,
	float[] out_buff, int out_offset, int out_len) {
	int ix = in_offset;
	int len = out_offset + out_len;
	for (int ox = out_offset; ox < len; ox++) {
	out_buff[ox] = ((short) ((in_buff[ix++] & 0xFF) \|
	(in_buff[ix++] << 8))) * (1.0f / 32767.0f);
	}

	return out_buff;
	}

	public byte[] toByteArray(float[] in_buff, int in_offset, int in_len,
	byte[] out_buff, int out_offset) {
	int ox = out_offset;
	int len = in_offset + in_len;
	for (int ix = in_offset; ix < len; ix++) {
	int x = (int) (in_buff[ix] * 32767.0);
	out_buff[ox++] = (byte) x;
	out_buff[ox++] = (byte) (x >>> 8);
	}
	return out_buff;
	}
	}

	// PCM 16 bit, signed, big-endian
	private static class AudioFloatConversion16SB extends AudioFloatConverter {
	public float[] toFloatArray(byte[] in_buff, int in_offset,
	float[] out_buff, int out_offset, int out_len) {
	int ix = in_offset;
	int ox = out_offset;
	for (int i = 0; i < out_len; i++) {
	out_buff[ox++] = ((short) ((in_buff[ix++] << 8) \|
	(in_buff[ix++] & 0xFF))) * (1.0f / 32767.0f);
	}
	return out_buff;
	}

	public byte[] toByteArray(float[] in_buff, int in_offset, int in_len,
	byte[] out_buff, int out_offset) {
	int ix = in_offset;
	int ox = out_offset;
	for (int i = 0; i < in_len; i++) {
	int x = (int) (in_buff[ix++] * 32767.0);
	out_buff[ox++] = (byte) (x >>> 8);
	out_buff[ox++] = (byte) x;
	}
	return out_buff;
	}
	}

	// PCM 16 bit, unsigned, little-endian
	private static class AudioFloatConversion16UL extends AudioFloatConverter {
	public float[] toFloatArray(byte[] in_buff, int in_offset,
	float[] out_buff, int out_offset, int out_len) {
	int ix = in_offset;
	int ox = out_offset;
	for (int i = 0; i < out_len; i++) {
	int x = (in_buff[ix++] & 0xFF) \| ((in_buff[ix++] & 0xFF) << 8);
	out_buff[ox++] = (x - 32767) * (1.0f / 32767.0f);
	}
	return out_buff;
	}

	public byte[] toByteArray(float[] in_buff, int in_offset, int in_len,
	byte[] out_buff, int out_offset) {
	int ix = in_offset;
	int ox = out_offset;
	for (int i = 0; i < in_len; i++) {
	int x = 32767 + (int) (in_buff[ix++] * 32767.0);
	out_buff[ox++] = (byte) x;
	out_buff[ox++] = (byte) (x >>> 8);
	}
	return out_buff;
	}
	}

	// PCM 16 bit, unsigned, big-endian
	private static class AudioFloatConversion16UB extends AudioFloatConverter {
	public float[] toFloatArray(byte[] in_buff, int in_offset,
	float[] out_buff, int out_offset, int out_len) {
	int ix = in_offset;
	int ox = out_offset;
	for (int i = 0; i < out_len; i++) {
	int x = ((in_buff[ix++] & 0xFF) << 8) \| (in_buff[ix++] & 0xFF);
	out_buff[ox++] = (x - 32767) * (1.0f / 32767.0f);
	}
	return out_buff;
	}

	public byte[] toByteArray(float[] in_buff, int in_offset, int in_len,
	byte[] out_buff, int out_offset) {
	int ix = in_offset;
	int ox = out_offset;
	for (int i = 0; i < in_len; i++) {
	int x = 32767 + (int) (in_buff[ix++] * 32767.0);
	out_buff[ox++] = (byte) (x >>> 8);
	out_buff[ox++] = (byte) x;
	}
	return out_buff;
	}
	}

	/***************************************************************************
	*
	* 24 bit signed/unsigned, little/big-endian
	*
	**************************************************************************/

	// PCM 24 bit, signed, little-endian
	private static class AudioFloatConversion24SL extends AudioFloatConverter {
	public float[] toFloatArray(byte[] in_buff, int in_offset,
	float[] out_buff, int out_offset, int out_len) {
	int ix = in_offset;
	int ox = out_offset;
	for (int i = 0; i < out_len; i++) {
	int x = (in_buff[ix++] & 0xFF) \| ((in_buff[ix++] & 0xFF) << 8)
	\| ((in_buff[ix++] & 0xFF) << 16);
	if (x > 0x7FFFFF)
	x -= 0x1000000;
	out_buff[ox++] = x * (1.0f / (float)0x7FFFFF);
	}
	return out_buff;
	}

	public byte[] toByteArray(float[] in_buff, int in_offset, int in_len,
	byte[] out_buff, int out_offset) {
	int ix = in_offset;
	int ox = out_offset;
	for (int i = 0; i < in_len; i++) {
	int x = (int) (in_buff[ix++] * (float)0x7FFFFF);
	if (x < 0)
	x += 0x1000000;
	out_buff[ox++] = (byte) x;
	out_buff[ox++] = (byte) (x >>> 8);
	out_buff[ox++] = (byte) (x >>> 16);
	}
	return out_buff;
	}
	}

	// PCM 24 bit, signed, big-endian
	private static class AudioFloatConversion24SB extends AudioFloatConverter {
	public float[] toFloatArray(byte[] in_buff, int in_offset,
	float[] out_buff, int out_offset, int out_len) {
	int ix = in_offset;
	int ox = out_offset;
	for (int i = 0; i < out_len; i++) {
	int x = ((in_buff[ix++] & 0xFF) << 16)
	\| ((in_buff[ix++] & 0xFF) << 8) \| (in_buff[ix++] & 0xFF);
	if (x > 0x7FFFFF)
	x -= 0x1000000;
	out_buff[ox++] = x * (1.0f / (float)0x7FFFFF);
	}
	return out_buff;
	}

	public byte[] toByteArray(float[] in_buff, int in_offset, int in_len,
	byte[] out_buff, int out_offset) {
	int ix = in_offset;
	int ox = out_offset;
	for (int i = 0; i < in_len; i++) {
	int x = (int) (in_buff[ix++] * (float)0x7FFFFF);
	if (x < 0)
	x += 0x1000000;
	out_buff[ox++] = (byte) (x >>> 16);
	out_buff[ox++] = (byte) (x >>> 8);
	out_buff[ox++] = (byte) x;
	}
	return out_buff;
	}
	}

	// PCM 24 bit, unsigned, little-endian
	private static class AudioFloatConversion24UL extends AudioFloatConverter {
	public float[] toFloatArray(byte[] in_buff, int in_offset,
	float[] out_buff, int out_offset, int out_len) {
	int ix = in_offset;
	int ox = out_offset;
	for (int i = 0; i < out_len; i++) {
	int x = (in_buff[ix++] & 0xFF) \| ((in_buff[ix++] & 0xFF) << 8)
	\| ((in_buff[ix++] & 0xFF) << 16);
	x -= 0x7FFFFF;
	out_buff[ox++] = x * (1.0f / (float)0x7FFFFF);
	}
	return out_buff;
	}

	public byte[] toByteArray(float[] in_buff, int in_offset, int in_len,
	byte[] out_buff, int out_offset) {
	int ix = in_offset;
	int ox = out_offset;
	for (int i = 0; i < in_len; i++) {
	int x = (int) (in_buff[ix++] * (float)0x7FFFFF);
	x += 0x7FFFFF;
	out_buff[ox++] = (byte) x;
	out_buff[ox++] = (byte) (x >>> 8);
	out_buff[ox++] = (byte) (x >>> 16);
	}
	return out_buff;
	}
	}

	// PCM 24 bit, unsigned, big-endian
	private static class AudioFloatConversion24UB extends AudioFloatConverter {
	public float[] toFloatArray(byte[] in_buff, int in_offset,
	float[] out_buff, int out_offset, int out_len) {
	int ix = in_offset;
	int ox = out_offset;
	for (int i = 0; i < out_len; i++) {
	int x = ((in_buff[ix++] & 0xFF) << 16)
	\| ((in_buff[ix++] & 0xFF) << 8) \| (in_buff[ix++] & 0xFF);
	x -= 0x7FFFFF;
	out_buff[ox++] = x * (1.0f / (float)0x7FFFFF);
	}
	return out_buff;
	}

	public byte[] toByteArray(float[] in_buff, int in_offset, int in_len,
	byte[] out_buff, int out_offset) {
	int ix = in_offset;
	int ox = out_offset;
	for (int i = 0; i < in_len; i++) {
	int x = (int) (in_buff[ix++] * (float)0x7FFFFF);
	x += 0x7FFFFF;
	out_buff[ox++] = (byte) (x >>> 16);
	out_buff[ox++] = (byte) (x >>> 8);
	out_buff[ox++] = (byte) x;
	}
	return out_buff;
	}
	}

	/***************************************************************************
	*
	* 32 bit signed/unsigned, little/big-endian
	*
	**************************************************************************/

	// PCM 32 bit, signed, little-endian
	private static class AudioFloatConversion32SL extends AudioFloatConverter {
	public float[] toFloatArray(byte[] in_buff, int in_offset,
	float[] out_buff, int out_offset, int out_len) {
	int ix = in_offset;
	int ox = out_offset;
	for (int i = 0; i < out_len; i++) {
	int x = (in_buff[ix++] & 0xFF) \| ((in_buff[ix++] & 0xFF) << 8) \|
	((in_buff[ix++] & 0xFF) << 16) \|
	((in_buff[ix++] & 0xFF) << 24);
	out_buff[ox++] = x * (1.0f / (float)0x7FFFFFFF);
	}
	return out_buff;
	}

	public byte[] toByteArray(float[] in_buff, int in_offset, int in_len,
	byte[] out_buff, int out_offset) {
	int ix = in_offset;
	int ox = out_offset;
	for (int i = 0; i < in_len; i++) {
	int x = (int) (in_buff[ix++] * (float)0x7FFFFFFF);
	out_buff[ox++] = (byte) x;
	out_buff[ox++] = (byte) (x >>> 8);
	out_buff[ox++] = (byte) (x >>> 16);
	out_buff[ox++] = (byte) (x >>> 24);
	}
	return out_buff;
	}
	}

	// PCM 32 bit, signed, big-endian
	private static class AudioFloatConversion32SB extends AudioFloatConverter {
	public float[] toFloatArray(byte[] in_buff, int in_offset,
	float[] out_buff, int out_offset, int out_len) {
	int ix = in_offset;
	int ox = out_offset;
	for (int i = 0; i < out_len; i++) {
	int x = ((in_buff[ix++] & 0xFF) << 24) \|
	((in_buff[ix++] & 0xFF) << 16) \|
	((in_buff[ix++] & 0xFF) << 8) \| (in_buff[ix++] & 0xFF);
	out_buff[ox++] = x * (1.0f / (float)0x7FFFFFFF);
	}
	return out_buff;
	}

	public byte[] toByteArray(float[] in_buff, int in_offset, int in_len,
	byte[] out_buff, int out_offset) {
	int ix = in_offset;
	int ox = out_offset;
	for (int i = 0; i < in_len; i++) {
	int x = (int) (in_buff[ix++] * (float)0x7FFFFFFF);
	out_buff[ox++] = (byte) (x >>> 24);
	out_buff[ox++] = (byte) (x >>> 16);
	out_buff[ox++] = (byte) (x >>> 8);
	out_buff[ox++] = (byte) x;
	}
	return out_buff;
	}
	}

	// PCM 32 bit, unsigned, little-endian
	private static class AudioFloatConversion32UL extends AudioFloatConverter {
	public float[] toFloatArray(byte[] in_buff, int in_offset,
	float[] out_buff, int out_offset, int out_len) {
	int ix = in_offset;
	int ox = out_offset;
	for (int i = 0; i < out_len; i++) {
	int x = (in_buff[ix++] & 0xFF) \| ((in_buff[ix++] & 0xFF) << 8) \|
	((in_buff[ix++] & 0xFF) << 16) \|
	((in_buff[ix++] & 0xFF) << 24);
	x -= 0x7FFFFFFF;
	out_buff[ox++] = x * (1.0f / (float)0x7FFFFFFF);
	}
	return out_buff;
	}

	public byte[] toByteArray(float[] in_buff, int in_offset, int in_len,
	byte[] out_buff, int out_offset) {
	int ix = in_offset;
	int ox = out_offset;
	for (int i = 0; i < in_len; i++) {
	int x = (int) (in_buff[ix++] * (float)0x7FFFFFFF);
	x += 0x7FFFFFFF;
	out_buff[ox++] = (byte) x;
	out_buff[ox++] = (byte) (x >>> 8);
	out_buff[ox++] = (byte) (x >>> 16);
	out_buff[ox++] = (byte) (x >>> 24);
	}
	return out_buff;
	}
	}

	// PCM 32 bit, unsigned, big-endian
	private static class AudioFloatConversion32UB extends AudioFloatConverter {

	public float[] toFloatArray(byte[] in_buff, int in_offset,
	float[] out_buff, int out_offset, int out_len) {
	int ix = in_offset;
	int ox = out_offset;
	for (int i = 0; i < out_len; i++) {
	int x = ((in_buff[ix++] & 0xFF) << 24) \|
	((in_buff[ix++] & 0xFF) << 16) \|
	((in_buff[ix++] & 0xFF) << 8) \| (in_buff[ix++] & 0xFF);
	x -= 0x7FFFFFFF;
	out_buff[ox++] = x * (1.0f / (float)0x7FFFFFFF);
	}
	return out_buff;
	}

	public byte[] toByteArray(float[] in_buff, int in_offset, int in_len,
	byte[] out_buff, int out_offset) {
	int ix = in_offset;
	int ox = out_offset;
	for (int i = 0; i < in_len; i++) {
	int x = (int) (in_buff[ix++] * (float)0x7FFFFFFF);
	x += 0x7FFFFFFF;
	out_buff[ox++] = (byte) (x >>> 24);
	out_buff[ox++] = (byte) (x >>> 16);
	out_buff[ox++] = (byte) (x >>> 8);
	out_buff[ox++] = (byte) x;
	}
	return out_buff;
	}
	}

	/***************************************************************************
	*
	* 32+ bit signed/unsigned, little/big-endian
	*
	**************************************************************************/

	// PCM 32+ bit, signed, little-endian
	private static class AudioFloatConversion32xSL extends AudioFloatConverter {

	final int xbytes;

	AudioFloatConversion32xSL(int xbytes) {
	this.xbytes = xbytes;
	}

	public float[] toFloatArray(byte[] in_buff, int in_offset,
	float[] out_buff, int out_offset, int out_len) {
	int ix = in_offset;
	int ox = out_offset;
	for (int i = 0; i < out_len; i++) {
	ix += xbytes;
	int x = (in_buff[ix++] & 0xFF) \| ((in_buff[ix++] & 0xFF) << 8)
	\| ((in_buff[ix++] & 0xFF) << 16)
	\| ((in_buff[ix++] & 0xFF) << 24);
	out_buff[ox++] = x * (1.0f / (float)0x7FFFFFFF);
	}
	return out_buff;
	}

	public byte[] toByteArray(float[] in_buff, int in_offset, int in_len,
	byte[] out_buff, int out_offset) {
	int ix = in_offset;
	int ox = out_offset;
	for (int i = 0; i < in_len; i++) {
	int x = (int) (in_buff[ix++] * (float)0x7FFFFFFF);
	for (int j = 0; j < xbytes; j++) {
	out_buff[ox++] = 0;
	}
	out_buff[ox++] = (byte) x;
	out_buff[ox++] = (byte) (x >>> 8);
	out_buff[ox++] = (byte) (x >>> 16);
	out_buff[ox++] = (byte) (x >>> 24);
	}
	return out_buff;
	}
	}

	// PCM 32+ bit, signed, big-endian
	private static class AudioFloatConversion32xSB extends AudioFloatConverter {

	final int xbytes;

	AudioFloatConversion32xSB(int xbytes) {
	this.xbytes = xbytes;
	}

	public float[] toFloatArray(byte[] in_buff, int in_offset,
	float[] out_buff, int out_offset, int out_len) {
	int ix = in_offset;
	int ox = out_offset;
	for (int i = 0; i < out_len; i++) {
	int x = ((in_buff[ix++] & 0xFF) << 24)
	\| ((in_buff[ix++] & 0xFF) << 16)
	\| ((in_buff[ix++] & 0xFF) << 8)
	\| (in_buff[ix++] & 0xFF);
	ix += xbytes;
	out_buff[ox++] = x * (1.0f / (float)0x7FFFFFFF);
	}
	return out_buff;
	}

	public byte[] toByteArray(float[] in_buff, int in_offset, int in_len,
	byte[] out_buff, int out_offset) {
	int ix = in_offset;
	int ox = out_offset;
	for (int i = 0; i < in_len; i++) {
	int x = (int) (in_buff[ix++] * (float)0x7FFFFFFF);
	out_buff[ox++] = (byte) (x >>> 24);
	out_buff[ox++] = (byte) (x >>> 16);
	out_buff[ox++] = (byte) (x >>> 8);
	out_buff[ox++] = (byte) x;
	for (int j = 0; j < xbytes; j++) {
	out_buff[ox++] = 0;
	}
	}
	return out_buff;
	}
	}

	// PCM 32+ bit, unsigned, little-endian
	private static class AudioFloatConversion32xUL extends AudioFloatConverter {

	final int xbytes;

	AudioFloatConversion32xUL(int xbytes) {
	this.xbytes = xbytes;
	}

	public float[] toFloatArray(byte[] in_buff, int in_offset,
	float[] out_buff, int out_offset, int out_len) {
	int ix = in_offset;
	int ox = out_offset;
	for (int i = 0; i < out_len; i++) {
	ix += xbytes;
	int x = (in_buff[ix++] & 0xFF) \| ((in_buff[ix++] & 0xFF) << 8)
	\| ((in_buff[ix++] & 0xFF) << 16)
	\| ((in_buff[ix++] & 0xFF) << 24);
	x -= 0x7FFFFFFF;
	out_buff[ox++] = x * (1.0f / (float)0x7FFFFFFF);
	}
	return out_buff;
	}

	public byte[] toByteArray(float[] in_buff, int in_offset, int in_len,
	byte[] out_buff, int out_offset) {
	int ix = in_offset;
	int ox = out_offset;
	for (int i = 0; i < in_len; i++) {
	int x = (int) (in_buff[ix++] * (float)0x7FFFFFFF);
	x += 0x7FFFFFFF;
	for (int j = 0; j < xbytes; j++) {
	out_buff[ox++] = 0;
	}
	out_buff[ox++] = (byte) x;
	out_buff[ox++] = (byte) (x >>> 8);
	out_buff[ox++] = (byte) (x >>> 16);
	out_buff[ox++] = (byte) (x >>> 24);
	}
	return out_buff;
	}
	}

	// PCM 32+ bit, unsigned, big-endian
	private static class AudioFloatConversion32xUB extends AudioFloatConverter {

	final int xbytes;

	AudioFloatConversion32xUB(int xbytes) {
	this.xbytes = xbytes;
	}

	public float[] toFloatArray(byte[] in_buff, int in_offset,
	float[] out_buff, int out_offset, int out_len) {
	int ix = in_offset;
	int ox = out_offset;
	for (int i = 0; i < out_len; i++) {
	int x = ((in_buff[ix++] & 0xFF) << 24) \|
	((in_buff[ix++] & 0xFF) << 16) \|
	((in_buff[ix++] & 0xFF) << 8) \| (in_buff[ix++] & 0xFF);
	ix += xbytes;
	x -= 2147483647;
	out_buff[ox++] = x * (1.0f / 2147483647.0f);
	}
	return out_buff;
	}

	public byte[] toByteArray(float[] in_buff, int in_offset, int in_len,
	byte[] out_buff, int out_offset) {
	int ix = in_offset;
	int ox = out_offset;
	for (int i = 0; i < in_len; i++) {
	int x = (int) (in_buff[ix++] * 2147483647.0);
	x += 2147483647;
	out_buff[ox++] = (byte) (x >>> 24);
	out_buff[ox++] = (byte) (x >>> 16);
	out_buff[ox++] = (byte) (x >>> 8);
	out_buff[ox++] = (byte) x;
	for (int j = 0; j < xbytes; j++) {
	out_buff[ox++] = 0;
	}
	}
	return out_buff;
	}
	}

	public static AudioFloatConverter getConverter(AudioFormat format) {
	AudioFloatConverter conv = null;
	if (format.getFrameSize() == 0)
	return null;
	if (format.getFrameSize() !=
	((format.getSampleSizeInBits() + 7) / 8) * format.getChannels()) {
	return null;
	}
	if (format.getEncoding().equals(Encoding.PCM_SIGNED)) {
	if (format.isBigEndian()) {
	if (format.getSampleSizeInBits() <= 8) {
	conv = new AudioFloatConversion8S();
	} else if (format.getSampleSizeInBits() > 8 &&
	format.getSampleSizeInBits() <= 16) {
	conv = new AudioFloatConversion16SB();
	} else if (format.getSampleSizeInBits() > 16 &&
	format.getSampleSizeInBits() <= 24) {
	conv = new AudioFloatConversion24SB();
	} else if (format.getSampleSizeInBits() > 24 &&
	format.getSampleSizeInBits() <= 32) {
	conv = new AudioFloatConversion32SB();
	} else if (format.getSampleSizeInBits() > 32) {
	conv = new AudioFloatConversion32xSB(((format
	.getSampleSizeInBits() + 7) / 8) - 4);
	}
	} else {
	if (format.getSampleSizeInBits() <= 8) {
	conv = new AudioFloatConversion8S();
	} else if (format.getSampleSizeInBits() > 8 &&
	format.getSampleSizeInBits() <= 16) {
	conv = new AudioFloatConversion16SL();
	} else if (format.getSampleSizeInBits() > 16 &&
	format.getSampleSizeInBits() <= 24) {
	conv = new AudioFloatConversion24SL();
	} else if (format.getSampleSizeInBits() > 24 &&
	format.getSampleSizeInBits() <= 32) {
	conv = new AudioFloatConversion32SL();
	} else if (format.getSampleSizeInBits() > 32) {
	conv = new AudioFloatConversion32xSL(((format
	.getSampleSizeInBits() + 7) / 8) - 4);
	}
	}
	} else if (format.getEncoding().equals(Encoding.PCM_UNSIGNED)) {
	if (format.isBigEndian()) {
	if (format.getSampleSizeInBits() <= 8) {
	conv = new AudioFloatConversion8U();
	} else if (format.getSampleSizeInBits() > 8 &&
	format.getSampleSizeInBits() <= 16) {
	conv = new AudioFloatConversion16UB();
	} else if (format.getSampleSizeInBits() > 16 &&
	format.getSampleSizeInBits() <= 24) {
	conv = new AudioFloatConversion24UB();
	} else if (format.getSampleSizeInBits() > 24 &&
	format.getSampleSizeInBits() <= 32) {
	conv = new AudioFloatConversion32UB();
	} else if (format.getSampleSizeInBits() > 32) {
	conv = new AudioFloatConversion32xUB(((
	format.getSampleSizeInBits() + 7) / 8) - 4);
	}
	} else {
	if (format.getSampleSizeInBits() <= 8) {
	conv = new AudioFloatConversion8U();
	} else if (format.getSampleSizeInBits() > 8 &&
	format.getSampleSizeInBits() <= 16) {
	conv = new AudioFloatConversion16UL();
	} else if (format.getSampleSizeInBits() > 16 &&
	format.getSampleSizeInBits() <= 24) {
	conv = new AudioFloatConversion24UL();
	} else if (format.getSampleSizeInBits() > 24 &&
	format.getSampleSizeInBits() <= 32) {
	conv = new AudioFloatConversion32UL();
	} else if (format.getSampleSizeInBits() > 32) {
	conv = new AudioFloatConversion32xUL(((
	format.getSampleSizeInBits() + 7) / 8) - 4);
	}
	}
	} else if (format.getEncoding().equals(Encoding.PCM_FLOAT)) {
	if (format.getSampleSizeInBits() == 32) {
	if (format.isBigEndian())
	conv = new AudioFloatConversion32B();
	else
	conv = new AudioFloatConversion32L();
	} else if (format.getSampleSizeInBits() == 64) {
	if (format.isBigEndian())
	conv = new AudioFloatConversion64B();
	else
	conv = new AudioFloatConversion64L();
	}

	}

	if ((format.getEncoding().equals(Encoding.PCM_SIGNED) \|\|
	format.getEncoding().equals(Encoding.PCM_UNSIGNED)) &&
	(format.getSampleSizeInBits() % 8 != 0)) {
	conv = new AudioFloatLSBFilter(conv, format);
	}

	if (conv != null)
	conv.format = format;
	return conv;
	}

	private AudioFormat format;

	public final AudioFormat getFormat() {
	return format;
	}

	public abstract float[] toFloatArray(byte[] in_buff, int in_offset,
	float[] out_buff, int out_offset, int out_len);

	public final float[] toFloatArray(byte[] in_buff, float[] out_buff,
	int out_offset, int out_len) {
	return toFloatArray(in_buff, 0, out_buff, out_offset, out_len);
	}

	public final float[] toFloatArray(byte[] in_buff, int in_offset,
	float[] out_buff, int out_len) {
	return toFloatArray(in_buff, in_offset, out_buff, 0, out_len);
	}

	public final float[] toFloatArray(byte[] in_buff, float[] out_buff,
	int out_len) {
	return toFloatArray(in_buff, 0, out_buff, 0, out_len);
	}

	public final float[] toFloatArray(byte[] in_buff, float[] out_buff) {
	return toFloatArray(in_buff, 0, out_buff, 0, out_buff.length);
	}

	public abstract byte[] toByteArray(float[] in_buff, int in_offset,
	int in_len, byte[] out_buff, int out_offset);

	public final byte[] toByteArray(float[] in_buff, int in_len,
	byte[] out_buff, int out_offset) {
	return toByteArray(in_buff, 0, in_len, out_buff, out_offset);
	}

	public final byte[] toByteArray(float[] in_buff, int in_offset, int in_len,
	byte[] out_buff) {
	return toByteArray(in_buff, in_offset, in_len, out_buff, 0);
	}

	public final byte[] toByteArray(float[] in_buff, int in_len,
	byte[] out_buff) {
	return toByteArray(in_buff, 0, in_len, out_buff, 0);
	}

	public final byte[] toByteArray(float[] in_buff, byte[] out_buff) {
	return toByteArray(in_buff, 0, in_buff.length, out_buff, 0);
	}
	}

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