2 * 11/19/04 1.0 moved to LGPL.
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4 * 12/12/99 Initial Version based on FileObuffer. mdm@techie.com.
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7 * 15/02/99 Java Conversion by E.B ,javalayer@javazoom.net
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9 *-----------------------------------------------------------------------
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10 * This program is free software; you can redistribute it and/or modify
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11 * it under the terms of the GNU Library General Public License as published
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12 * by the Free Software Foundation; either version 2 of the License, or
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13 * (at your option) any later version.
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15 * This program is distributed in the hope that it will be useful,
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16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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18 * GNU Library General Public License for more details.
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20 * You should have received a copy of the GNU Library General Public
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21 * License along with this program; if not, write to the Free Software
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22 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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23 *----------------------------------------------------------------------
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26 package javazoom.jl.decoder;
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29 * The <code>SampleBuffer</code> class implements an output buffer
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30 * that provides storage for a fixed size block of samples.
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32 public class SampleBuffer extends Obuffer
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34 private short[] buffer;
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35 private int[] bufferp;
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36 private int channels;
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37 private int frequency;
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42 public SampleBuffer(int sample_frequency, int number_of_channels)
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44 buffer = new short[OBUFFERSIZE];
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45 bufferp = new int[MAXCHANNELS];
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46 channels = number_of_channels;
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47 frequency = sample_frequency;
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49 for (int i = 0; i < number_of_channels; ++i)
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50 bufferp[i] = (short)i;
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54 public int getChannelCount()
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56 return this.channels;
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59 public int getSampleFrequency()
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61 return this.frequency;
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64 public short[] getBuffer()
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66 return this.buffer;
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69 public int getBufferLength()
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75 * Takes a 16 Bit PCM sample.
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77 public void append(int channel, short value)
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79 buffer[bufferp[channel]] = value;
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80 bufferp[channel] += channels;
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83 public void appendSamples(int channel, float[] f)
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85 int pos = bufferp[channel];
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89 for (int i=0; i<32;)
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92 fs = (fs>32767.0f ? 32767.0f
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93 : (fs < -32767.0f ? -32767.0f : fs));
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100 bufferp[channel] = pos;
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105 * Write the samples to the file (Random Acces).
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107 public void write_buffer(int val)
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110 //for (int i = 0; i < channels; ++i)
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111 // bufferp[i] = (short)i;
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115 public void close()
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121 public void clear_buffer()
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123 for (int i = 0; i < channels; ++i)
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124 bufferp[i] = (short)i;
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130 public void set_stop_flag()
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