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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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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
/** * This class is used to store audio buffer. * * @author Karl Helgason */
public final 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; } } } } }