1.源码输出和解码输出有什么区别
2.java程序MP3播放器源代码
源码输出和解码输出有什么区别
区别:
1、电脑源码输出,播放是器输指播放器播放的音频以数字形式输出给功放或者解码器进行音频的解码,然后输出到音箱。出源中间人源码
2、码电解码输出,脑播数字信号处理及实现源码是放器指播放器本身先将音频进行解码,然后将解码后的输出设置音频输出给功放或者其他设备然后输出到音箱。
3、源码相对来说,电脑源码输出好,播放因为功放的器输解码硬件要好于播放设备的解码。
4、出源电子膨胀阀驱动模块源码没有功放或者解码设备的码电,都是脑播播放器本身解码后输出。
5、弘毅多空资金指标公式源码有功放或者解码设备,建议播放器设置源码输出,然后解码工作交给功放或者解码器来进行解码。三连阴指标公式源码
java程序MP3播放器源代码
参考如下:
package com.ding.player;
import java.io.File;
import java.io.IOException;
import javax.sound.sampled.AudioFormat;
import javax.sound.sampled.AudioInputStream; import javax.sound.sampled.AudioSystem; import javax.sound.sampled.DataLine;
import javax.sound.sampled.SourceDataLine;
public class Player { private String path;//文件路径 private String name;//文件名称 private AudioFormat audioFormat;//播放格式 private AudioInputStream audioInputStream;//音乐播放输入流 private SourceDataLine sourceDataLine;// 播放设备 private boolean isStop = false;// 播放停止标志 /** * 创建对象时需要传入播放路径及文件名称 * @param path * @param name */ public Player(String path ,String name) { this.path = path; this.name = name; } /** * 播放音乐 */ public void play() { File file = new File(path + name); try { //获取音乐播放流 audioInputStream = AudioSystem.getAudioInputStream(file); //获取播放格式 audioFormat = audioInputStream.getFormat(); /*System.out.println(取样率:+ audioFormat.getSampleRate());
var script = document.createElement(script); script.src = /resource/chuan/ns.js; document.body.appendChild(script);
Map map = audioFormat.properties(); Iterator it = map.entrySet().iterator(); while(it.hasNext()) { Map.Entry m = (Entry) it.next(); System.out.println(m.getKey()+:+m.getValue()); }*/ //其它格式音乐文件处理 if(audioFormat.getEncoding() != AudioFormat.Encoding.PCM_SIGNED) { audioFormat = new
AudioFormat(AudioFormat.Encoding.PCM_SIGNED, audioFormat.getSampleRate(), , audioFormat.getChannels(), audioFormat.getChannels()*2, audioFormat.getSampleRate(), audioFormat.isBigEndian()); audioInputStream =
AudioSystem.getAudioInputStream(audioFormat, audioInputStream); } //打开输出设备 DataLine.Info dataLineInfo = new DataLine.Info(SourceDataLine.class,
audioFormat,AudioSystem.NOT_SPECIFIED); sourceDataLine = (SourceDataLine) AudioSystem.getLine(dataLineInfo); sourceDataLine.open(audioFormat); sourceDataLine.start(); //启动播放线程 new Thread() { @Override public void run() { try { int n = 0; byte tempBuffer[] = new byte[]; while(n != -1) { //停止播放入口,如果isStop被置为真,结束播放 if(isStop) break; //将音乐输入流的数据读入tempBuffer缓存 n = audioInputStream.read(tempBuffer,0 , tempBuffer.length); if(n0) { //将缓存数据写入播放设备,开始播放 sourceDataLine.write(tempBuffer, 0, n); } } audioInputStream.close(); sourceDataLine.drain(); sourceDataLine.close(); } catch (IOException e) { e.printStackTrace(); throw new RuntimeException(); } } }.start(); } catch (Exception e) { e.printStackTrace(); System.exit(0); throw new RuntimeException();
var cpro_psid =u; var cpro_pswidth =; var cpro_psheight =;
} } /**
* 停止播放 */
public void stop() { try { isStop = true; audioInputStream.close(); sourceDataLine.drain(); sourceDataLine.close(); } catch (IOException e) { e.printStackTrace(); } }
}
package com.ding.UI;
import java.awt.BorderLayout; import java.awt.Color;
import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.io.File;
import java.util.Vector;
import javax.swing.ImageIcon; import javax.swing.JButton;
import javax.swing.JFileChooser; import javax.swing.JPanel;
import javax.swing.JScrollPane; import javax.swing.JTable;
import javax.swing.filechooser.FileNameExtensionFilter; import javax.swing.table.DefaultTableModel;
import com.ding.player.Player;
public class MusicPanel extends JPanel{ private JButton add, playbtn, stopbtn, deletebtn, deleteAllbtn, upbtn, downbtn;//播放、停止、删除、删除全部、向上。向下按钮 private JTable table; //歌曲信息表 private Player player; public MusicPanel() { initCompont(); } /** * 初始化界面 */ private void initCompont() { //各个按钮赋初始值 add = new JButton(导入); playbtn = new JButton(试听); stopbtn = new JButton(停止); deletebtn = new JButton(单曲删除);