Java播放音频

再写完Java播放wav后&＃xff0c;我又对代码进行了优化&＃xff0c;支持了各种种类音频
基础功能

1. 开始
2. 暂停
3. 继续
4. 停止

本次添加功能:

1. 获取音频进度
2. 跳过某一段
3. 从某一段开始播放
4. 各种音频格式支持

/*直接copy以下代码&＃xff0c;就当是个开源的jar
使用时请注明出处&＃xff0c;并再运行时输出*/
import java.io.*;
import javax.sound.sampled.*;class wav extends Thread
{public String path&＃61;"audio.wav";public AudioFormat format&＃61;null;public AudioInputStream aistream&＃61;null;public float sampleRate&＃61;0;public float framelength&＃61;0;public float seclen&＃61;0;public DataLine.Info datalineinfo&＃61;null;public SourceDataLine dataline&＃61;null;public boolean pause&＃61;false;public boolean stop&＃61;false;public int played&＃61;0;public int play_from&＃61;0;public boolean pass&＃61;false;public wav(){}public void set(){try{aistream&＃61;AudioSystem.getAudioInputStream(new File(path));format&＃61;aistream.getFormat();sampleRate&＃61;format.getSampleRate();framelength&＃61;aistream.getFrameLength();seclen&＃61;framelength/sampleRate;datalineinfo&＃61;new DataLine.Info(SourceDataLine.class, format);dataline&＃61;(SourceDataLine)AudioSystem.getLine(datalineinfo);}catch(LineUnavailableException err){System.out.println("LineUnavailableException");}catch(UnsupportedAudioFileException err){System.out.println("UnsupportedAudioFileException");}catch(IOException err){System.out.println("IOException");}}public void run(){try{byte[] bytes&＃61;new byte[512];int length&＃61;0;dataline.open(format);dataline.start();played&＃61;0;while(stop&＃61;&＃61;false){if(pause&＃61;&＃61;false){if((length&＃61;aistream.read(bytes))>0){if(played>&＃61;play_from){if(pass&＃61;&＃61;false){dataline.write(bytes, 0, length);}else{System.out.print("");}played&＃43;&＃61;1;}else{played&＃43;&＃61;1;System.out.print("");}}else{break;}}else{System.out.print("");}}stop&＃61;true;aistream.close();dataline.drain();dataline.close();aistream&＃61;null;format&＃61;null;sampleRate&＃61;0;framelength&＃61;0;seclen&＃61;0;datalineinfo&＃61;null;dataline&＃61;null;pause&＃61;false;stop&＃61;false;play_from&＃61;0;pass&＃61;false;}catch(Exception err){System.out.println("Error");err.printStackTrace();}catch(Error err){System.out.println("Error: can not play the audio");err.printStackTrace();}}
}class audio extends wav
{public audio(String path){try{if(!(new File(path&＃43;".wav").exists())){Process p&＃61;Runtime.getRuntime().exec("ffmpeg.exe -i "&＃43;path&＃43;" -f wav "&＃43;path&＃43;".wav");try{p.waitFor();}catch(Exception err){}}}catch(IOException err){err.printStackTrace();}this.path&＃61;path&＃43;".wav";}
}class getlength
{public getlength(){}public static int get(String path){audio au&＃61;new audio(path);au.set();au.start();au.pass&＃61;true;while(au.stop!&＃61;true){System.out.print("");}return au.played;}
}

audio au&＃61;new audio("X:/xxx/xxx.xxx");
au.play_from&＃61;100;//从某处开始播放
au.set();//刷新
au.start();//开始播放&＃xff0c;不阻塞
au.run();//开始播放&＃xff0c;阻塞
au.pause&＃61;true;//暂停
au.pause&＃61;false;//继续
au.stop&＃61;true;//停止
au.played;//获取已经播放的进度
getlength.get(path);//获取音频总长度
au.seclen;//音频时长
au&＃61;new wav();//重置
//重新播放前必须重置

需要用到ffmpeg来转换音频格式
ffmpeg下载https://blog.csdn.net/twxwjh/article/details/107576426