samplebuffer.java

java实现的多媒体播放器,可以在手机上运行

/**
 *-----------------------------------------------------------------------
 *   This program is free software; you can redistribute it and/or modify
 *   it under the terms of the GNU Library General Public License as published
 *   by the Free Software Foundation; either version 2 of the License,or
 *   (at your option) any later version.
 *
 *   This program 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 Library General Public License for more details.
 *
 *   You should have received a copy of the GNU Library General Public
 *   License along with this program; if not,write to the Free Software
 *   Foundation,Inc.,675 Mass Ave,Cambridge,MA 02139,USA.
 *----------------------------------------------------------------------
 */
package javazoom.jlme.decoder;


public class SampleBuffer {
  public final static int OBUFFERSIZE = 4 * 1152;
  public final static int MAXCHANNELS = 2;
  private final byte[] buffer = new byte[OBUFFERSIZE];
  private final int[] bufferp = new int[MAXCHANNELS];
  private int channels;
  private int frequency;

  public SampleBuffer(int sample_frequency,int number_of_channels) {
    channels = (number_of_channels == 1) ? 1 : 3;
    frequency = sample_frequency;
    bufferp[0] = 0;
    bufferp[1] = 2;
  }

  public final int getBufferIndex(int channel) {
    return bufferp[channel];
  }

  public final void setBufferIndex(int channel,int index) {
    bufferp[channel] = index;
  }

  public final int getBufferChannelCount() {
    return channels;
  }

  public int getChannelCount() {
    return (channels == 1) ? 1 : 2;
  }

  public int getSampleFrequency() {
    return this.frequency;
  }

  public byte[] getBuffer() {
    return this.buffer;
  }

  public int size() {
    return this.bufferp[0];
  }

  public void clear() {
    bufferp[0] = 0;
    bufferp[1] = 2;
  }
}