1058 lines
41 KiB
Java
1058 lines
41 KiB
Java
/*
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* Copyright (c) 2007, 2013, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation. Oracle designates this
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* particular file as subject to the "Classpath" exception as provided
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* by Oracle in the LICENSE file that accompanied this code.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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package com.sun.media.sound;
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import java.nio.ByteBuffer;
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import java.nio.ByteOrder;
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import java.nio.DoubleBuffer;
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import java.nio.FloatBuffer;
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import javax.sound.sampled.AudioFormat;
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import javax.sound.sampled.AudioFormat.Encoding;
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/**
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* This class is used to convert between 8,16,24,32,32+ bit signed/unsigned
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* big/litle endian fixed/floating point byte buffers and float buffers.
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*
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* @author Karl Helgason
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*/
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public abstract class AudioFloatConverter {
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/***************************************************************************
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*
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* LSB Filter, used filter least significant byte in samples arrays.
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*
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* Is used filter out data in lsb byte when SampleSizeInBits is not
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* dividable by 8.
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*
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**************************************************************************/
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private static class AudioFloatLSBFilter extends AudioFloatConverter {
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private final AudioFloatConverter converter;
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final private int offset;
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final private int stepsize;
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final private byte mask;
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private byte[] mask_buffer;
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AudioFloatLSBFilter(AudioFloatConverter converter, AudioFormat format) {
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int bits = format.getSampleSizeInBits();
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boolean bigEndian = format.isBigEndian();
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this.converter = converter;
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stepsize = (bits + 7) / 8;
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offset = bigEndian ? (stepsize - 1) : 0;
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int lsb_bits = bits % 8;
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if (lsb_bits == 0)
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mask = (byte) 0x00;
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else if (lsb_bits == 1)
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mask = (byte) 0x80;
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else if (lsb_bits == 2)
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mask = (byte) 0xC0;
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else if (lsb_bits == 3)
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mask = (byte) 0xE0;
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else if (lsb_bits == 4)
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mask = (byte) 0xF0;
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else if (lsb_bits == 5)
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mask = (byte) 0xF8;
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else if (lsb_bits == 6)
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mask = (byte) 0xFC;
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else if (lsb_bits == 7)
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mask = (byte) 0xFE;
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else
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mask = (byte) 0xFF;
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}
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public byte[] toByteArray(float[] in_buff, int in_offset, int in_len,
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byte[] out_buff, int out_offset) {
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byte[] ret = converter.toByteArray(in_buff, in_offset, in_len,
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out_buff, out_offset);
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int out_offset_end = in_len * stepsize;
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for (int i = out_offset + offset; i < out_offset_end; i += stepsize) {
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out_buff[i] = (byte) (out_buff[i] & mask);
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}
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return ret;
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}
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public float[] toFloatArray(byte[] in_buff, int in_offset,
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float[] out_buff, int out_offset, int out_len) {
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if (mask_buffer == null || mask_buffer.length < in_buff.length)
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mask_buffer = new byte[in_buff.length];
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System.arraycopy(in_buff, 0, mask_buffer, 0, in_buff.length);
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int in_offset_end = out_len * stepsize;
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for (int i = in_offset + offset; i < in_offset_end; i += stepsize) {
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mask_buffer[i] = (byte) (mask_buffer[i] & mask);
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}
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float[] ret = converter.toFloatArray(mask_buffer, in_offset,
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out_buff, out_offset, out_len);
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return ret;
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}
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}
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/***************************************************************************
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*
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* 64 bit float, little/big-endian
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*
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**************************************************************************/
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// PCM 64 bit float, little-endian
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private static class AudioFloatConversion64L extends AudioFloatConverter {
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ByteBuffer bytebuffer = null;
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DoubleBuffer floatbuffer = null;
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double[] double_buff = null;
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public float[] toFloatArray(byte[] in_buff, int in_offset,
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float[] out_buff, int out_offset, int out_len) {
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int in_len = out_len * 8;
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if (bytebuffer == null || bytebuffer.capacity() < in_len) {
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bytebuffer = ByteBuffer.allocate(in_len).order(
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ByteOrder.LITTLE_ENDIAN);
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floatbuffer = bytebuffer.asDoubleBuffer();
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}
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bytebuffer.position(0);
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floatbuffer.position(0);
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bytebuffer.put(in_buff, in_offset, in_len);
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if (double_buff == null
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|| double_buff.length < out_len + out_offset)
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double_buff = new double[out_len + out_offset];
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floatbuffer.get(double_buff, out_offset, out_len);
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int out_offset_end = out_offset + out_len;
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for (int i = out_offset; i < out_offset_end; i++) {
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out_buff[i] = (float) double_buff[i];
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}
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return out_buff;
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}
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public byte[] toByteArray(float[] in_buff, int in_offset, int in_len,
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byte[] out_buff, int out_offset) {
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int out_len = in_len * 8;
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if (bytebuffer == null || bytebuffer.capacity() < out_len) {
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bytebuffer = ByteBuffer.allocate(out_len).order(
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ByteOrder.LITTLE_ENDIAN);
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floatbuffer = bytebuffer.asDoubleBuffer();
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}
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floatbuffer.position(0);
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bytebuffer.position(0);
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if (double_buff == null || double_buff.length < in_offset + in_len)
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double_buff = new double[in_offset + in_len];
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int in_offset_end = in_offset + in_len;
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for (int i = in_offset; i < in_offset_end; i++) {
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double_buff[i] = in_buff[i];
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}
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floatbuffer.put(double_buff, in_offset, in_len);
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bytebuffer.get(out_buff, out_offset, out_len);
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return out_buff;
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}
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}
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// PCM 64 bit float, big-endian
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private static class AudioFloatConversion64B extends AudioFloatConverter {
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ByteBuffer bytebuffer = null;
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DoubleBuffer floatbuffer = null;
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double[] double_buff = null;
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public float[] toFloatArray(byte[] in_buff, int in_offset,
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float[] out_buff, int out_offset, int out_len) {
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int in_len = out_len * 8;
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if (bytebuffer == null || bytebuffer.capacity() < in_len) {
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bytebuffer = ByteBuffer.allocate(in_len).order(
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ByteOrder.BIG_ENDIAN);
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floatbuffer = bytebuffer.asDoubleBuffer();
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}
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bytebuffer.position(0);
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floatbuffer.position(0);
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bytebuffer.put(in_buff, in_offset, in_len);
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if (double_buff == null
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|| double_buff.length < out_len + out_offset)
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double_buff = new double[out_len + out_offset];
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floatbuffer.get(double_buff, out_offset, out_len);
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int out_offset_end = out_offset + out_len;
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for (int i = out_offset; i < out_offset_end; i++) {
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out_buff[i] = (float) double_buff[i];
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}
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return out_buff;
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}
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public byte[] toByteArray(float[] in_buff, int in_offset, int in_len,
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byte[] out_buff, int out_offset) {
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int out_len = in_len * 8;
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if (bytebuffer == null || bytebuffer.capacity() < out_len) {
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bytebuffer = ByteBuffer.allocate(out_len).order(
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ByteOrder.BIG_ENDIAN);
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floatbuffer = bytebuffer.asDoubleBuffer();
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}
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floatbuffer.position(0);
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bytebuffer.position(0);
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if (double_buff == null || double_buff.length < in_offset + in_len)
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double_buff = new double[in_offset + in_len];
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int in_offset_end = in_offset + in_len;
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for (int i = in_offset; i < in_offset_end; i++) {
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double_buff[i] = in_buff[i];
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}
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floatbuffer.put(double_buff, in_offset, in_len);
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bytebuffer.get(out_buff, out_offset, out_len);
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return out_buff;
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}
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}
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/***************************************************************************
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*
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* 32 bit float, little/big-endian
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*
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**************************************************************************/
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// PCM 32 bit float, little-endian
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private static class AudioFloatConversion32L extends AudioFloatConverter {
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ByteBuffer bytebuffer = null;
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FloatBuffer floatbuffer = null;
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public float[] toFloatArray(byte[] in_buff, int in_offset,
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float[] out_buff, int out_offset, int out_len) {
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int in_len = out_len * 4;
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if (bytebuffer == null || bytebuffer.capacity() < in_len) {
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bytebuffer = ByteBuffer.allocate(in_len).order(
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ByteOrder.LITTLE_ENDIAN);
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floatbuffer = bytebuffer.asFloatBuffer();
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}
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bytebuffer.position(0);
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floatbuffer.position(0);
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bytebuffer.put(in_buff, in_offset, in_len);
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floatbuffer.get(out_buff, out_offset, out_len);
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return out_buff;
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}
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public byte[] toByteArray(float[] in_buff, int in_offset, int in_len,
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byte[] out_buff, int out_offset) {
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int out_len = in_len * 4;
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if (bytebuffer == null || bytebuffer.capacity() < out_len) {
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bytebuffer = ByteBuffer.allocate(out_len).order(
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ByteOrder.LITTLE_ENDIAN);
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floatbuffer = bytebuffer.asFloatBuffer();
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}
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floatbuffer.position(0);
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bytebuffer.position(0);
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floatbuffer.put(in_buff, in_offset, in_len);
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bytebuffer.get(out_buff, out_offset, out_len);
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return out_buff;
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}
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}
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// PCM 32 bit float, big-endian
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private static class AudioFloatConversion32B extends AudioFloatConverter {
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ByteBuffer bytebuffer = null;
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FloatBuffer floatbuffer = null;
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public float[] toFloatArray(byte[] in_buff, int in_offset,
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float[] out_buff, int out_offset, int out_len) {
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int in_len = out_len * 4;
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if (bytebuffer == null || bytebuffer.capacity() < in_len) {
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bytebuffer = ByteBuffer.allocate(in_len).order(
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ByteOrder.BIG_ENDIAN);
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floatbuffer = bytebuffer.asFloatBuffer();
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}
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bytebuffer.position(0);
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floatbuffer.position(0);
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bytebuffer.put(in_buff, in_offset, in_len);
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floatbuffer.get(out_buff, out_offset, out_len);
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return out_buff;
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}
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public byte[] toByteArray(float[] in_buff, int in_offset, int in_len,
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byte[] out_buff, int out_offset) {
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int out_len = in_len * 4;
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if (bytebuffer == null || bytebuffer.capacity() < out_len) {
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bytebuffer = ByteBuffer.allocate(out_len).order(
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ByteOrder.BIG_ENDIAN);
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floatbuffer = bytebuffer.asFloatBuffer();
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}
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floatbuffer.position(0);
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bytebuffer.position(0);
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floatbuffer.put(in_buff, in_offset, in_len);
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bytebuffer.get(out_buff, out_offset, out_len);
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return out_buff;
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}
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}
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/***************************************************************************
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*
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* 8 bit signed/unsigned
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*
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**************************************************************************/
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// PCM 8 bit, signed
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private static class AudioFloatConversion8S extends AudioFloatConverter {
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public float[] toFloatArray(byte[] in_buff, int in_offset,
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float[] out_buff, int out_offset, int out_len) {
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int ix = in_offset;
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int ox = out_offset;
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for (int i = 0; i < out_len; i++)
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out_buff[ox++] = in_buff[ix++] * (1.0f / 127.0f);
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return out_buff;
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}
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public byte[] toByteArray(float[] in_buff, int in_offset, int in_len,
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byte[] out_buff, int out_offset) {
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int ix = in_offset;
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int ox = out_offset;
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for (int i = 0; i < in_len; i++)
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out_buff[ox++] = (byte) (in_buff[ix++] * 127.0f);
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return out_buff;
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}
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}
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// PCM 8 bit, unsigned
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private static class AudioFloatConversion8U extends AudioFloatConverter {
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public float[] toFloatArray(byte[] in_buff, int in_offset,
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float[] out_buff, int out_offset, int out_len) {
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int ix = in_offset;
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int ox = out_offset;
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for (int i = 0; i < out_len; i++)
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out_buff[ox++] = ((in_buff[ix++] & 0xFF) - 127)
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* (1.0f / 127.0f);
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return out_buff;
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}
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public byte[] toByteArray(float[] in_buff, int in_offset, int in_len,
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byte[] out_buff, int out_offset) {
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int ix = in_offset;
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int ox = out_offset;
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for (int i = 0; i < in_len; i++)
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out_buff[ox++] = (byte) (127 + in_buff[ix++] * 127.0f);
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return out_buff;
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}
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}
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/***************************************************************************
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*
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* 16 bit signed/unsigned, little/big-endian
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*
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**************************************************************************/
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// PCM 16 bit, signed, little-endian
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private static class AudioFloatConversion16SL extends AudioFloatConverter {
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public float[] toFloatArray(byte[] in_buff, int in_offset,
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float[] out_buff, int out_offset, int out_len) {
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int ix = in_offset;
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int len = out_offset + out_len;
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for (int ox = out_offset; ox < len; ox++) {
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out_buff[ox] = ((short) ((in_buff[ix++] & 0xFF) |
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(in_buff[ix++] << 8))) * (1.0f / 32767.0f);
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}
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return out_buff;
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}
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public byte[] toByteArray(float[] in_buff, int in_offset, int in_len,
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byte[] out_buff, int out_offset) {
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int ox = out_offset;
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int len = in_offset + in_len;
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for (int ix = in_offset; ix < len; ix++) {
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int x = (int) (in_buff[ix] * 32767.0);
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out_buff[ox++] = (byte) x;
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out_buff[ox++] = (byte) (x >>> 8);
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}
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return out_buff;
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}
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}
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// PCM 16 bit, signed, big-endian
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private static class AudioFloatConversion16SB extends AudioFloatConverter {
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public float[] toFloatArray(byte[] in_buff, int in_offset,
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float[] out_buff, int out_offset, int out_len) {
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int ix = in_offset;
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int ox = out_offset;
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for (int i = 0; i < out_len; i++) {
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out_buff[ox++] = ((short) ((in_buff[ix++] << 8) |
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(in_buff[ix++] & 0xFF))) * (1.0f / 32767.0f);
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}
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return out_buff;
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}
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public byte[] toByteArray(float[] in_buff, int in_offset, int in_len,
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byte[] out_buff, int out_offset) {
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int ix = in_offset;
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int ox = out_offset;
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for (int i = 0; i < in_len; i++) {
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int x = (int) (in_buff[ix++] * 32767.0);
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out_buff[ox++] = (byte) (x >>> 8);
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out_buff[ox++] = (byte) x;
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}
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return out_buff;
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}
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}
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// PCM 16 bit, unsigned, little-endian
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private static class AudioFloatConversion16UL extends AudioFloatConverter {
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public float[] toFloatArray(byte[] in_buff, int in_offset,
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float[] out_buff, int out_offset, int out_len) {
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int ix = in_offset;
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int ox = out_offset;
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for (int i = 0; i < out_len; i++) {
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int x = (in_buff[ix++] & 0xFF) | ((in_buff[ix++] & 0xFF) << 8);
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out_buff[ox++] = (x - 32767) * (1.0f / 32767.0f);
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}
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return out_buff;
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}
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public byte[] toByteArray(float[] in_buff, int in_offset, int in_len,
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byte[] out_buff, int out_offset) {
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int ix = in_offset;
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int ox = out_offset;
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for (int i = 0; i < in_len; i++) {
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int x = 32767 + (int) (in_buff[ix++] * 32767.0);
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out_buff[ox++] = (byte) x;
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out_buff[ox++] = (byte) (x >>> 8);
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}
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return out_buff;
|
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}
|
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}
|
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|
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// PCM 16 bit, unsigned, big-endian
|
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private static class AudioFloatConversion16UB extends AudioFloatConverter {
|
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public float[] toFloatArray(byte[] in_buff, int in_offset,
|
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float[] out_buff, int out_offset, int out_len) {
|
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int ix = in_offset;
|
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int ox = out_offset;
|
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for (int i = 0; i < out_len; i++) {
|
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int x = ((in_buff[ix++] & 0xFF) << 8) | (in_buff[ix++] & 0xFF);
|
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out_buff[ox++] = (x - 32767) * (1.0f / 32767.0f);
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}
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return out_buff;
|
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}
|
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|
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public byte[] toByteArray(float[] in_buff, int in_offset, int in_len,
|
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byte[] out_buff, int out_offset) {
|
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int ix = in_offset;
|
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int ox = out_offset;
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for (int i = 0; i < in_len; i++) {
|
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int x = 32767 + (int) (in_buff[ix++] * 32767.0);
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out_buff[ox++] = (byte) (x >>> 8);
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out_buff[ox++] = (byte) x;
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}
|
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return out_buff;
|
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}
|
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}
|
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|
|
/***************************************************************************
|
|
*
|
|
* 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);
|
|
}
|
|
}
|