package com.nnbrightstar.lbtm.common.utils;import it.sauronsoftware.jave.AudioAttributes;
import it.sauronsoftware.jave.Encoder;
import it.sauronsoftware.jave.EncoderException;
import it.sauronsoftware.jave.EncodingAttributes;
import it.sauronsoftware.jave.InputFormatException;
import java.io.File;public class ChangeAudioFormat {public static void main(String[] args) throws Exception {File source = new File("D:/1.amr");String targetPath = "D:/2.mp3";transcodingToMP3(source,targetPath);}/*** jave包实现将amr格式转为mp3格式 * @param source* @param targetPath* @return*/public static boolean transcodingToMP3(File source,String targetPath){//File source = new File("C:/Users/Administrator/Downloads/厨房里的爆炸案.mpg");boolean flag = false;File target = new File(targetPath);AudioAttributes audio = new AudioAttributes();// 音频属性audio.setCodec("libmp3lame");// libmp3lame 音频编码audio.setBitRate(new Integer(128000));// 音频比特率audio.setChannels(new Integer(1));// 声道audio.setSamplingRate(new Integer(44100));// 采样率EncodingAttributes attrs = new EncodingAttributes();// 视频属性attrs.setFormat("mp3");// 转码格式attrs.setAudioAttributes(audio);// 音频属性Encoder encoder = new Encoder();// 创建解码器long beginTime = System.currentTimeMillis();try {// 获取时长MultimediaInfo m = encoder.getInfo(source);System.out.println(m.getDuration()/1000 + "秒");System.out.println("获取时长花费时间是：" + ((System.currentTimeMillis() - beginTime))/1000 + "秒");beginTime = System.currentTimeMillis();encoder.encode(source, target, attrs);System.out.println("音频转码花费时间是：" + ((System.currentTimeMillis() - beginTime)/1000) + "秒");flag = true;} catch (IllegalArgumentException e) {flag = false;e.printStackTrace();} catch (InputFormatException e) {flag = false;e.printStackTrace();} catch (EncoderException e) {flag = false;e.printStackTrace();}return flag;}
}

package com.nnbrightstar.lbtm.common.utils;import it.sauronsoftware.jave.AudioAttributes;
import it.sauronsoftware.jave.Encoder;
import it.sauronsoftware.jave.EncoderException;
import it.sauronsoftware.jave.EncodingAttributes;
import it.sauronsoftware.jave.InputFormatException;
import java.io.File;public class ChangeAudioFormat {public static void main(String[] args) throws Exception {String sourcePath = "D:/1.amr"; String targetPath = "D:/1.mp3";ToMp3(sourcePath,targetPath);}/** * ffmpeg.exe软件实现将amr格式转为mp3格式 * @param webroot 项目的根目录 * @param sourcePath 文件的相对地址 */  public static void ToMp3(String sourcePath, String targetPath){  Runtime run = null;    try {    run = Runtime.getRuntime();    long start=System.currentTimeMillis();    //Process p=run.exec(webroot+"files/ffmpeg -i "+webroot+sourcePath+" -acodec libmp3lame "+webroot+targetPath);//执行ffmpeg.exe,前面是ffmpeg.exe的地址，中间是需要转换的文件地址，后面是转换后的文件地址。-i是转换方式，意思是可编码解码，mp3编码方式采用的是libmp3lameString cmd = "D:/ffmpeg/bin/ffmpeg -i "+sourcePath+" -acodec libmp3lame "+targetPath;Process p=run.exec(cmd);//执行ffmpeg.exe,前面是ffmpeg.exe的地址，中间是需要转换的文件地址，后面是转换后的文件地址。-i是转换方式，意思是可编码解码，mp3编码方式采用的是libmp3lame
            System.out.println(cmd);//释放进程
            p.getOutputStream().close();    p.getInputStream().close();    p.getErrorStream().close();    p.waitFor();    long end=System.currentTimeMillis();    System.out.println(sourcePath+" convert success, costs:"+(end-start)+"ms");      } catch (Exception e) {    e.printStackTrace();    }finally{    //run调用lame解码器最后释放内存
            run.freeMemory();    }  }
}

sh convert.sh 1.amr mp3

package com.nnbrightstar.lbtm.common.utils;import it.sauronsoftware.jave.AudioAttributes;
import it.sauronsoftware.jave.Encoder;
import it.sauronsoftware.jave.EncoderException;
import it.sauronsoftware.jave.EncodingAttributes;
import it.sauronsoftware.jave.InputFormatException;
import java.io.File;public class ChangeAudioFormat {public static void main(String[] args) throws Exception {ToMp3();}/** * cygwin软件实现将amr格式转为mp3格式 */  public static void ToMp3(){  Runtime run = null;    try {    run = Runtime.getRuntime();    long start=System.currentTimeMillis();    //F:/Cygwin/bin/bash.exe调用cygwin执行linux命令（如果配置过环境变量，在任何路径下直接可以写sh），C:/Users/Administrator/Desktop/silk-v3-decoder-master/converter.sh是要执行的文件，1.amr是要转换的文件，mp3要输出的格式　　　　　　　//String cmd = "sh C:/Users/Administrator/Desktop/silk-v3-decoder-master/converter.sh 1.amr mp3";String cmd = "F:/Cygwin/bin/bash.exe C:/Users/Administrator/Desktop/silk-v3-decoder-master/converter.sh 1.amr mp3";Process p=run.exec(cmd);//执行cygwin,前面是cygwin的地址，中间是需要转换的文件地址，后面是转换后的文件的格式。
            System.out.println(cmd);//释放进程
            p.getOutputStream().close();    p.getInputStream().close();    p.getErrorStream().close();    p.waitFor();    long end=System.currentTimeMillis();    System.out.println(sourcePath+" convert success, costs:"+(end-start)+"ms");      } catch (Exception e) {    e.printStackTrace();    }finally{    //run调用lame解码器最后释放内存
            run.freeMemory();    }  }
}